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NC0078131_Discharge Alternatives Evaluation_20230526
Discharge Alternatives Evaluation for City of Havelock Brown Boulevard WTP NPDES Permit NCO078131 December, 2022 R&A Project No. 2022141 Discharge Alternatives Evaluation for ,-emu NN0RTI1 r City of Havelock Brown Boulevard WTP NPDES Permit NCO078131 December, 2022 R&A Project No. 2022141 Prepared by: RIVERS AND ASSOCIATES, INC. Greenville, Ngrth Carolina �ssssis off"' ,oQ�N. CARP` �= a� SEAL�9� 16744 = � ,O UNg Ch rchili, KE., President Rive & Associates, Inc. Date: Y - f-[- ZZ City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table of Contents 1.0 Introduction............................................................................................................................. 1 1.1. Background.....................................................................................................................1 1.1.1 Treatment Process...................................................................................................... 1 1.1.2 Waste Discharge.......................................................................................................... 2 1.1.3 NPDES Permit............................................................................................................. 3 1.2. Purpose and Scope......................................................................................................... 3 1.3. Location...........................................................................................................................3 2.0 Surface Water Discharge Suitability..................................................................................... 4 2.1 Zero Flow Stream Restrictions......................................................................................... 4 2.2 Stream Classification Restrictions.................................................................................... 4 2.2.1 Class SB; Sw, NSW Waters........................................................................................ 4 2.3 Basinwide Water Quality Plan......................................................................................... 7 2.4 Impaired Waters & Total Daily Maximum Limits (TMDLs)....................................... 7 2.5 Presence of Endangered Species....................................................................................... 7 2.5.1 Birds.............................................................................................................................. 8 2.5.2 Fishes............................................................................................................................ 9 2.5.3 Mammals..................................................................................................................... 9 2.5.4 Reptiles....................................................................................................................... 10 2.5.5 Insects......................................................................................................................... 11 2.5.6 Plants.......................................................................................................................... 11 2.5.7 Designated Critical Habitat..................................................................................... 12 2.6 Brown Boulevard WTP Proposed Disposal Impacts .................................................... 12 2.6.1 Nutrient Discharge Limits........................................................................................ 13 2.6.2 Sediment Discharge Limits...................................................................................... 14 2.6.3 Dissolved Oxygen...................................................................................................... 14 2.6.4 Copper........................................................................................................................ 14 2.6.5 Zinc............................................................................................................................. 15 2.6.4 Whole Effluent Toxicity (WET).............................................................................. 15 2.6.5 BOD Limitations....................................................................................................... 15 2.6.6 Stormwater Management......................................................................................... 16 Rivers & Associates, Inc. Page i City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 2.6.7 Riparian and Wetland Buffers................................................................................ 16 2.6.8 Interbasin Water Transfer....................................................................................... 16 2.6.9 By-products of Reverse Osmosis Treatment Plants .............................................. 16 3.0 Description of Proposed Project........................................................................................ 16 3.1 Applicant Name, Mailing Address, Phone Number, Contact Person ............................. 16 3.2 Facility Name, Address, County, Phone Number, Contact Person ............................. 16 3.3 Discharge Alternatives Analysis Preparer's Name, Mailing Address, Phone Number, ContactPerson........................................................................................................................ 17 4.0 Population Projections....................................................................................................... 17 4.1 Residential Population Projections................................................................................ 17 4.2 Water Flow Projections.................................................................................................. 17 4.2.1 Current Average Daily Flow (Finished Water Produced) .................................... 17 4.2.2 Maximum Daily Flow (Finished Water Produced) ................................................ 18 4.2.3 Current Flow (Backwash Waste Effluent)............................................................. 18 4.2.4 Future 20-Year Flow Projections (Finished Water Produced) ............................. 18 4.2.5 Future 20-Year Maximum Daily Flow Projections (Finished Water Produced) 19 4.2.6 Future 20-Year Flow Projections (Backwash Waste Effluent) ............................ 19 5.0 Technologically Feasible Alternatives.............................................................................. 19 5.1 Backwash Waste Treatment........................................................................................... 19 5.1.1 Treatment Alternative #1 - No Action.................................................................... 19 5.2 Disposal Alternatives....................................................................................................... 20 5.2.1 Disposal Alternative A - Connection to Existing WWTP..................................... 20 5.2.2 Disposal Alternative B — Land Application........................................................... 21 5.2.3 Disposal Alternative C-........................................................................................ 21 WastewaterReuse............................................................................................................... 21 5.2.4 Disposal Alternative D — Surface Water Discharge ........................................... 21 5.2.4.1. Disposal Alternative #D1 - Havelock WWTP Outfall 002 in the Neuse River 22 6.0 Selection of an Alternative................................................................................................. 29 6.1 Backwash Waste Treatment........................................................................................... 29 6.2 Disposal Alternatives....................................................................................................... 29 6.2.1 Monetary Factors (Present Value of Costs Analysis) ............................................ 29 6.2.2 Non -Monetary Factors............................................................................................. 30 6.3 Selected Combination of Alternatives............................................................................ 31 Rivers & Associates, Inc. Page ii City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 7.0 Recommendations................................................................................................................33 7.1 General..............................................................................................................................33 7.2 Dilution Evaluation.......................................................................................................... 34 7.2 NPDES Engineering Alternatives Analysis (EAA)....................................................... 36 7.3 NPDES Permit Application............................................................................................. 36 7.4 Funding............................................................................................................................. 36 7.5 Design, Permitting and Construction............................................................................. 37 Appendices A...........................................................................2022 Local Water Supply Plan B..........................................................................WTP NPDES Discharge Permit C..................................................................Brown Boulevard WTP Site Location D..................................................................Surface Water Discharge Alternatives E............................................................WTP Daily Monitoring Reports Summary F....................................................................Endangered and Threatened Species G............................................................................Reasonable Potential Analyses H............................................WTP Backwash Solids Handling Design Memorandum I ...........................................................WTP Backwash Solids Handling Plan Sheets J................................................................WWTP Outfall and Diffuser Plan Sheets K..........................................................WWTP Daily Monitoring Reports Summary L.......................................................................WWTP NPDES Discharge Permit M............................................New Bern WWTP and WTP NPDES Discharge Permit Rivers & Associates, Inc. Page iii City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 1.0 Introduction I.I. Background The City of Havelock Public Utilities Department operates a groundwater treatment plant located on Brown Boulevard that supplies potable water to approximately 5,179 residential, 674 commercial, and 14 institutional customers within their service area (see Appendix A — Local Water Supply Plan). Raw water is supplied from four (4) groundwater wells located in the Castle Hayne aquifer. The WTP is rated at 2.80 MGD, and the twelve (12) hour capacity of the wells is 3.024 MGD. Currently, the average day demand for the WTP is approximately 1.20 MGD with maximum day demand of approximately 1.95 MGD. 1.1.1 Treatment Process Raw water flow from the wells is pumped to dual forced draft aerators to strip hydrogen sulfide. Sodium permanganate is injected at the base of each aerator to oxidize soluble iron and manganese. Dual raw water aeration tanks receive water from the aerators and provide detention time to allow oxidation and precipitation of the iron and manganese. Dual vertical turbine filter pumps in each aeration tank transmit water through the filters and softeners for treatment and into an onsite ground storage tank for storage of finished water. The filter softener piping gallery, chemical feed systems, power and controls, operations room and laboratory are housed in a split face and split rib masonry block building with precast hollow core panels and built-up roof construction. The treatment system consists of six (6) pressure filters and four (4) softeners arranged in two treatment trains of three (3) filters and two (2) softeners each. The trains can be controlled and operated in parallel or independently. The filters contain greensand media with anthracite topping. The softeners contain cationic exchange resin. Flanged ductile iron face piping and automated motorized valves are provided to control the forward flow of water, as well as the filter backwash and softener regeneration processes. The Operator can select when to initiate backwash of the filters although a differential pressure switch will automatically initiate backwash at a 10 psi pressure differential across the filter. Typically, all six (6) filters are backwashed sequentially each day. The four (4) softeners are regenerated based on a countdown flow meter to track the volume of water softened through each vessel. Regeneration for each softener occurs when the cationic resin is expended based on water flow through each vessel. Only one (1) softener is allowed to regenerate at a time, and regeneration is prohibited while the filters are in backwash. Chemicals utilized in the water treatment process include sodium permanganate for iron and manganese oxidation, sodium hypochlorite for primary disinfection followed by the addition of liquid ammonium sulfate to form chloramines for residual disinfection, blended phosphate for corrosion control, and calcium thiosulfate for dechlorination of the treated waste stream. Rivers & Associates, Inc. Page 1 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Finished water is stored in the prestressed concrete ground storage tank. Three (3) interior, pad mounted, horizontal split case high service pumps transmit finished water from the ground storage tank to the distribution system and elevated water storage tanks. The water system includes three (3) elevated tanks. The total storage capacity of the ground storage and elevated tanks is 2.20 MG. A Supervisory Control and Data Acquisition (SCADA) system utilizing PLC -based Central Terminal Unit and Remote Terminal Units, along with fiberoptic, radio and hard -wired communications, provides monitoring and control as required for well operations, filter/softener control panels, chemical feed pump operations, high service pump operations, tank levels, as well as reporting, alarms and datalogging at the Human - Machine Interface (HMI) in the WTP office and remote devices. Filter backwash utilizes finished water from the distribution system as the backwash supply. An exterior -located wound fiberglass bulk salt tank supplies brine solution to a brine day tank located within the WTP Brine Room. Brine is subsequently pumped from the day tank and diluted by the addition of softened water for the regeneration of softener resin. Rinse water is supplied by forward flow through the filters. The filter/softener control panels monitor and control filter backwash and softener regeneration operations. Filter backwash and softener rinse waste water is piped through independent headers from inside the WTP building to a point of connection located outside the building where it is piped to a 450,000 gallon circular waste settling basin to promote settling and separation of precipitated iron and manganese solids. The settling basin is fitted with a sloped bottom, collection sump and rotating scraper mechanism to facilitate removal of the settled solids. The solids are lifted and transported via a suction -lift solids handling pump station to sand drying beds for dewatering and drying. Sludge from the drying beds is periodically removed and disposed of by land application. Supernatant from the circular waste settling basin is decanted via a telescoping valve and piping to a waste polishing basin to provide a secondary means of settling prior to disposal of the treated effluent. A floating decanter mechanism is utilized for primary withdrawal of the supernatant for gravity discharge into the roadside ditch of Brown Boulevard which feeds to the regulated discharge point in McCotter Canal. Prior to discharge, the flow is metered, calcium thiosulfate is injected for dechlorination, and composite sampling is provided for permit monitoring and compliance. 1.1.2 Waste Discharge Waste discharge from the Brown Boulevard WTP is currently regulated under NPDES Permit NCO078131 (Appendix B). The regulated discharge location is McCotter Canal, a tributary to Shop Branch a SC, Sw, NSW located in the Neuse River Basin. The location of the WTP discharge has not changed since the plant was initially constructed in 1989. In 2018, the City of Havelock completed construction of significant treatment Rivers & Associates, Inc. Page 2 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 improvements to the WTP waste stream as described above in order to comply with TSS limits. Those improvements have substantively reduced the effluent suspended solids to the downstream receiving streams. In addition, the frequent Notices of Violation (NOVs) and fines received previously by the City for TSS violations have been eliminated. Substantial improvements have also been realized with regard to toxicity testing likely due to blending of the fresh filter backwash waste with brackish softener regeneration waste into a more homogenized effluent stream. During the 2013 — 2017 timeframe, prior to installation of the Backwash Waste Improvements, the WTP failed 10 of 12 toxicity tests. Subsequent to completion of the Improvements, during the 2019 — 2022 timeframe, the WTP has only failed 4 of 16 toxicity tests. The Backwash Waste Improvements, however, were not expected to completely resolve or eliminate Whole Effluent Toxicity (WET) test failures. The WTP currently performs acute WET testing for monitoring and reporting on a quarterly basis using Mysid Shrimp performed as 24- day pass/fail test at 90% effluent concentration. 1.1.3 NPDES Permit On October 12, 2018, NCDEQ DWR issued the current NPDES Discharge Permit which became effective November 1, 2018 and expires on June 30, 2023. A number of modifications were made to the prior permit. Among the additional requirements are (1) the addition of specific effluent limits for Total Copper and Total Zinc, (2) a discharge alternatives evaluation due to a history of failed toxicity tests, and (3) a compliance schedule for Total Copper and Total Zinc. 1.2. Purpose and Scope The primary purpose of this report is to evaluate and present the findings for discharge alternatives that might reasonably be expected to resolve periodic failed toxicity tests. A secondary consideration is to identify the discharge alternative that might also achieve compliance with Total Copper and Total Zinc limits. 1.3. Location The subject WTP is located at the intersection of Brown Boulevard and Webb Boulevard near the southeast end of the corporate limits of the City of Havelock, Craven County, North Carolina. The WTP is located on a 4.0 +/- acre partially developed site (Appendix C) with commercial development located immediately to the south and west, and residential development located immediately to the north and east. The City of Havelock is home to Marine Corps Air Station Cherry Point which occupies over 11,000 acres of federally -owned land located northeast of the City, extending to and including approximately 4.3 miles of the south bank of the Neuse River. The City and MCAS Cherry point are adjoined on the south, east and west by the federally -owned Croatan Rivers & Associates, Inc. Page 3 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 National Forest which occupies over 160,000 acres. The Croatan National Forest extends and includes approximately 3.2 miles of the south bank of the Neuse River located to the west and east of the Cherry Branch - Minnesott Beach Ferry Terminal and the residential areas sited on either side of the Terminal. 2.0 Surface Water Discharge Suitability 2.1 Zero Flow Stream Restrictions Zero flow stream restrictions apply to oxygen consuming waste in zero -flow streams per 15A NCAC 2B.0206(d)(2). The surface water discharge location(s) under consideration are located within the Neuse River. Each of the locations are tidally influenced, and USGS does not monitor flows in such areas. The nature of the treated waste itself is not anticipated to consume additional oxygen once it enters into the onsite settling basin. Sodium permanganate is an oxidant that is utilized to precipitate soluble iron and manganese in the groundwater for removal by the filters in the water treatment process. Liquid sodium hypochlorite is used for primary disinfection followed by the addition of liquid ammonium sulfate to form chloramines for residual disinfection of finished water as it leaves the WTP and enters the distribution system. Calcium thiosulfate is a mild reducing agent injected into the waste stream prior to discharge in order to neutralize any residual chlorine. The actual dissolved oxygen concentrations in the Brown Boulevard WTP waste effluent routinely exceeds the minimum required for the Neuse River stream classifications as discussed in paragraph 2.2 below. Zero Flow Stream Restrictions are not applicable under the circumstances associated with the discharge alternatives evaluated herein. 2.2 Stream Classification Restrictions Receiving stream classification restrictions have various discharge restrictions. Two surface water discharge locations are considered within this Discharge Alternatives Evaluation. The two locations under consideration are classified as follows (Appendix D): • Class SB; Sw, NSW @ existing Havelock WWTP Outfall 002 in the Neuse River • Class SB; Sw, NSW @ Pine Cliff Recreation Area in the Neuse River Wastewater discharge restrictions for this stream classification is described in 15A NCAC 2B.0220. 2.2.1 Class SB; Sw, NSW Waters Discharge of treated waste effluent is allowable in Class SB waters subject to reliable and effective treatment, and discharge quality, quantity and proximity that is acceptable to the Environmental Management Commission. Fecal coliform restrictions exist within Class SB waters. However, fecal coliform is not included among the constituents of WTP waste, and is not monitored or limited by NDPES permit. Rivers & Associates, Inc. Page 4 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 The NPDES permit for the Brown Boulevard WTP (Appendix B) includes effluent parameters with associated limits and monitoring requirements that generally conform to NCDEQ's Permitting Strategy for Potable WTPs. Two (2) years of Water Production and Waste Discharge Monitoring Report (DMR) results are summarized in Appendix E. Per NCAC 2B.0222, the surface water quality standards described in NCAC 2B.0220 for Class SC waters are also applicable to Class SB surface waters such as the Neuse River. Table 1 below presents a comparison of pertinent water quality standards associated with the Class SB Neuse River as a potential receiving water compared to effluent monitoring results from the Brown Boulevard WTP waste stream: Table 1— Class SB Water Quality Standards vs. _ Brown Boulevard WTP Effluent Monit ring Results Pertinent WQ NCAC 2B.0220 Brown Blvd. WTP Parameter for Stream Standard Effluent DMR Results Class SB Receiving Waters DO Daily Average > 5.0 mg/L Average = 8.94 mg/L Min = 6.79 m /L TSS Shall not make waters unsafe for Range = 3.0 — 12.0 mg/L aquatic life and wildlife or impair Average = 5.87 mg/L the waters for any designated use. pH 6.8 - 8.5 su. except swamp waters Range = 7.1 — 7.75 su may be as low as 4.3 su if the Average = 7.47 su. result of natural conditions Temperature Not to increase more than 1.44 Monitoring not required degrees F (June — August). based on current NPDES Not to increase more than 3.96 Discharge Permit. degrees F (September — May). Not to exceed 89.6 degrees F. Turbidity Not to exceed 25 NTU Range = 4.1 — 12.0 NTU Avera e = 7.2 NTU Chlorine, Not to exceed 17 ug/L Range = 1 — 19 ug/V total residual Average = 7.3 ug/L Copper Not to exceed 3.1 ug/L Range = 2 — 8 ug/L2 Avera e < 2.95 ug/L Zinc Not to exceed 81 ug/L Range = 10 — 13 5 ug/L3 Average = 49.55 ug/L Notes: 1. Daily Maximum NPDES Permit Limit for Total Residual Chlorine = 13 ug/L. The Division considers all effluent TRC values reported below 50 ug/L to be in compliance with the permit. 2. Minimum laboratory test results reported as < 2 ug/L. 3. Minimum laboratory test results reported as <10 ug/L. Rivers & Associates, Inc. Page 5 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 The Neuse River also has a secondary classification as Nutrient Sensitive Waters. Nutrients of concern would include nitrogen, phosphorous, or any other chemical parameter that may contribute to excess growth of microscopic or macroscopic vegetation. Nitrogen and phosphorous are typically not significant contaminants in a groundwater supply. However, they are naturally occurring constituents that are sometimes encountered. Total Nitrogen and Total Phosphorous are monitored quarterly via composite sampling per the requirements of the current NPDES discharge permit. Total Nitrogen concentrations in the waste stream vary from approximately 0.48 — 1.05 mg/L with an average value of approximately 0.76 mg/L. Likewise, Total Phosphorous concentrations in the waste stream vary from approximately 0.05 — 0.39 mg/L with an average value of 0.16 mg/L. These values are well below the effluent limits typically allowed for treated waste discharge from a domestic wastewater treatment plant, result in a very small mass loading based on the discharge capacity of the WTP, and are minimal relative to the large volume and flow associated with the potential receiving stream. In addition to the parameters discussed above, the following waste effluent monitoring is routinely conducted for the Brown Boulevard WTP per NPDES permit requirements: Salinity — Monthly salinity concentrations for the WTP effluent range from approximately 1.68 — 12.0 ppt with an average of approximately 3.78. Salinity within the lower Neuse River Estuary typically ranges from 10 — 30 ppt with an average of approximately 15 ppt during periods of normal rainfall. Drought conditions can result in the salinity concentrations in the estuary exceeding 20 ppt. Conductivity — Monthly conductivity concentrations range from approximately 3,230 — 20,100 umhos/cm with an average of approximately 6,817 umhos/cm. TDS — Monthly total dissolved solids concentrations in the waste stream vary from approximately 2,000 — 13,000 mg/L with an average of 4,366 mg/. Total Chloride — Monthly chloride concentrations range from approximately 925 — 8,630 mg/L with an average of approximately 2,607 mg/L. Total Iron — Monthly chloride concentrations range from approximately 387 — 2,002 ug/L with an average concentration of approximately 956 ug/L Ammonia Nitrogen — Monthly ammonia nitrogen concentrations in the waste stream range from approximately 0.04 — 1.29 mg/L with an average of 0.17 mg/L. Manganese — Monthly manganese concentrations in the waste stream range from approximately 156 — 664 ug/L with an average of 346 ug/L. Whole Effluent Toxicity (WET) — Aquatic Acute Toxicity Pass/Fail Monitoring is performed quarterly for Mysid Shrimp at 90% effluent concentration. During the past Rivers & Associates, Inc. Page 6 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 two years, the WTP has failed this test twice. During the past four years, the WTP has failed this test four quarters. 2.3 Basinwide Water Quality Plan The two potential discharge locations under consideration in this Discharge Alternatives Evaluation are located in the Bend segment of Subbasin 03-04-10 just upstream of the river's constriction at the Cherry Point — Minnessott Beach Ferry Terminal (Appendix D). The first potential discharge location is a combined discharge with the existing Havelock WWTP Neuse River diffuser (Outfall 002 - NPDES Permit NC0021253). A new WTP Effluent Pump Station and 10" diameter effluent force main would connect to the existing 24" diameter WWTP effluent force main serving WWTP Outfall 002. WWTP Outfall 002 discharges via an 80-feet long multi -port diffuser located approximately 2,000 feet from the southern bank of the Neuse River just north of Marine Corps Air Station Cherry Point (34°,57'11"N, 76°,52',37"W). The WWTP and WTP effluent flows and associated sampling would be separately maintained and monitored until they are combined in the effluent outfall force main, cascade aerator and diffuser. The second potential discharge location is a new discharge located in the Neuse River near the Pine Cliff Recreation Area (Croatan National Forest) located just west of the river's constriction at the Ferry Terminal. The discharge would consist of a new WTP Effluent Pump Station, new 12" diameter effluent force main, directionally drilled subaqueous pipeline and multi -port diffuser. The Neuse River Basinwide Water Quality Plan was last updated in 2009. The two potential discharge locations are both located within Assessment Unit Number 27-(104)b which encompasses the segment of the Neuse River from a line across the River from 1.2 miles upstream of Slocum Creek to 0.5 miles upstream of Beard's Creek to a line across the River from Wilkinson Point to Cherry Point. Early assessments of this River segment referenced in the 2009 Basinwide Plan and contemporaneous 303 (d) lists indicate the aquatic life within this River segment to be "impaired" for Chlorophyll a and High pH, but "supporting" for recreational use. The "impaired" classification is assigned when sampling indicates the pollutant concentration exceeds the evaluation level (water quality standard, action level, Ecological threshold, etc.) more than 10 percent of the observed samples. The River segment of interest has not appeared on the NC 303(d) list since 2010. 2.4 Impaired Waters & Total Daily Maximum Limits (TMDLs) The current 303(d) Impaired Waters List was finalized in 2022. The Neuse River segment under consideration as potential receiving waters in this Evaluation has not appeared on the NC 303(d) list since 2010. 2.5 Presence of Endangered Species Current and/or prior existence of threatened or endangered species in the Neuse River Basin are well documented by the NCDEQ Basinwide Water Quality Plan, US Fish and Wildlife Service, NC Wildlife Resources Commission, and NC Natural Heritage Program. Appendix Rivers & Associates, Inc. Page 7 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 F includes documentation obtained from these various resource agencies relative to plant and animal species that are listed as endangered, threatened, of special concern, or significantly rare that are potentially affected by activities within the project area under consideration. Definitions for each of these classifications are as follows: • Endangered species are in danger of extinction throughout all or a significant portion of its range. • A threatened species is likely to become an endangered species in the foreseeable future. • Special concern species require monitoring, but may be taken or collected under specific regulatory requirements. • A significantly rare species is rare in North Carolina, but has no official state status as such. • A federal species of concern refers to a species that is under consideration for listing, but at present insufficient information exists to support listing. 2.5.1 Birds Among avians, only one (1) species is federally classified as endangered, the Red - cockaded Woodpecker, Picoides borealis (RCW). The RCW is a territorial, non - migratory species that excavate roosts and nest cavities in living pine trees. Longleaf pine is the preferred species for excavation; however, loblolly, shortleaf, slash and pond pine are also used depending on availability. Mature trees are required such that sufficient heartwood is available for a sap -free cavity. RCW is a primary cavity nester since it constructs the cavity in which it resides. Other secondary cavity nesters benefit from the RCW's construction. These include other birds, snakes, lizards, squirrels and frogs. No critical habitat has been designated for this species. The Red Knot, Calidris canutus rufa, is federally listed as threatened. The Red Knot is a medium-sized shorebird which breeds in tundra and Arctic Cordillera in the far north of Canada, Europe and Russia. It makes one of the largest annual migrations of any bird traveling 9,300 miles from its Arctic breeding grounds to the southern part of South America. The species is regularly sighted along the NC coast during winter migration. However, the number have been reduced due to the decline/over-harvest of crabs in the Delaware Bay. Knots favor tidal water for foraging, and crab eggs laid on Delaware beaches fuel their flight to the northern breeding grounds. There is a proposed critical habitat for this species. The Eastern Black Rail, Laterallus jamaicensis ssp jamaicensis, is federally listed as threatened. The Eastern Black Rail is a sparrow -sized, secretive marsh bird, and the smallest rail in North America. Adults have an average length of 4 — 6 inches and a wingspan of 8.7 — 11 inches. Black rails required dense vegetative cover that allows movement under the canopy. They are found in a variety of salt, brackish, and freshwater marsh habitats that can be tidally or non -tidally influenced. North Carolina presently Rivers & Associates, Inc. Page 8 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 shows a severe decline in the number of occupied sites. No critical habitat has been designated for this species. 2.5.2 Fishes There are no endangered or threatened fish species within this area. 2.5.3 Mammals The Northern Long-eared Bat, Myotis septentrionalis, is federally listed as an endangered species. This bat has a medium sized body of 3 — 3.7 inches, a wingspan of 9 - 10 inches, and long ears when compared to other bats of the same genus. In winter, the bats hibernate in caves and mines where constant temperatures, high humidity and no air current prevail. During summer, Northern Long-eared Bats roost singly or in colonies beneath bark or in cavities of live and dead trees. Rarely, does this species roost in structures such as barns or sheds. The bat's range extends through much of eastern and north central United States, as well as all Canadian provinces. Populations of the Northern Long-eared Bat have declined primarily due to a disease known as white -nose syndrome. This disease has quickly spread from the Northeast to the Midwest and Southeast U.S. Numbers of the bats have declined by as much as 99 percent in the Northeast, and that decline is expected to continue in the foreseeable future as white -nose syndrome spreads throughout the species' range. No critical habitat has been designated for this species. The Tricolored Bat, Perimyotis subflavus, is proposed endangered and is one of the smallest bats native to North America. The once common species is wide ranging across the eastern and central United States and portions of southern Canada, Mexico and Central America. During the winter, tricolored bats are found in caves and mines, although in the southern United States, where caves are sparse, tricolored bats are often found roosting in road -associated culverts. During the spring, summer and fall, tricolored bats are found in forested habitats where they roost in trees, primarily among leaves. As its name suggests, the tricolored bat is distinguished by its unique tricolored fur that appears dark at the base, lighter in the middle and dark at the tip. White -nose syndrome, a disease that impacts bats, is caused by a fungal pathogen. It has led to 90 to 100% declines in tricolored bat winter colony abundance at sites impacted by the disease. Since white -nose syndrome was first observed in New York in 2006, it has spread rapidly across the majority of the tricolored bat range. No critical habitat has been designated for this species. The West Indian Manatee, Trichechus manatus, is federally listed as a threatened marine mammal. The West Indian manatee is a large, aquatic mammal. There are two subspecies of West Indian manatees: the Antillean manatee (Trichechus manatus manatus) and the Florida manatee (Trichechus manatus latirostris). Due to their eating habits, manatees are nicknamed "sea cows", because they eat seagrasses and other aquatic plants. The range -wide population is estimated to be at least 13,000 manatees, Rivers & Associates, Inc. Page 9 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 with more than 6,500 in the southeastern United States and Puerto Rico. When aerial surveys began in 1991, there were an estimated 1,267 manatees in Florida. Today there are more than 6,300 in Florida, representing a significant increase over the past 25 years. There is a final critical habitat for this species; however, this project area does not overlap the critical habitat. 2.5.4 Reptiles The American Alligator, Alligator Mississippiensis, is federally protected as threatened due to similarity of appearance with other listed crocodile or caiman species. The American Alligator was depleted from many parts of their range as a result of market - hunting and habitat loss, and was listed as endangered in 1967. However, the combined efforts of US Fish and Wildlife and State Wildlife Agencies saved these animals. In 1987, US FWS declared the American Alligator to be fully recovered, and removed the animal from the list of endangered species, but continues to offer protection as threatened due to similarity of appearance. No critical habitat has been designated for this species. The Green Sea Turtle, Chelonia mydas, is federally listed as threatened. This turtle is the largest of all hard -shelled sea turtles, but has a comparatively small head. A typical adult is 3 — 4 feet long and weighs 300 — 350 pounds. They have dark brown, grey, or olive colored shells and a much lighter, yellow -to -white underside. Green Sea Turtle must surface to breathe and lay their eggs on land. They migrate hundreds to thousands of miles each way between their foraging grounds and nesting beaches. They are solitary, night-time nesters. Their diet consists of algae and seagrasses, though they also forage on sponges, invertebrates, and discarded fish. They are found worldwide in subtropical and temperate regions of the Atlantic, Pacific and Indian Oceans, as well as the Mediterranean Sea. In the U.S., Green Sea Turtles are found in inshore and nearshore waters from Texas to Maine. There is a final critical habitat for this species; however, this project location does not overlap the critical habitat. Kemp's Ridley Sea Turtle is federally listed as an endangered species. Kemp's Ridley sea turtles are considered the smallest marine turtles in the world and are also the most endangered. The Kemp's Ridley has a triangular -shaped head and a slightly hooked beak with large crushing surfaces. Adults have a nearly circular top shell that's grayish green, while the bottom shell is pale yellow to cream in color. Hatchlings are black on both sides. On average, adults weigh about 100 pounds with a top shell measuring between 24 to 28 inches in length. Kemp's Ridleys are usually found in nearshore and inshore waters of the northern Gulf of Mexico, especially in Louisiana waters, which are their primary feeding grounds. Known for their unique synchronized nesting habit, large groups of Kemp's Ridleys gather off a particular nesting beach near Rancho Nuevo, Mexico, in the state of Tamaulipas. Females then come ashore in subsequent waves to nest. There is a proposed critical habitat for this species. The Leatherback Sea Turtle, Dermochelys coriacea, is the largest turtle in the world. It is federally listed as endangered. They are the only species of sea turtle that lack scales Rivers & Associates, Inc. Page 10 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 and a hard shell. They are named for their tough rubbery skin and have existed in their current form since the age of the dinosaurs. Leatherbacks are highly migratory, some swimming over 10,000 miles a year between nesting and foraging grounds. They are also accomplished divers with the deepest recorded dive reaching nearly 4,000 feet —deeper than most marine mammals. The leatherback turtle has the widest global distribution of any reptile, with nesting mainly on tropical or subtropical beaches. Once prevalent in every ocean except the Arctic and Antarctic, the leatherback population is rapidly declining in many parts of the world. They face threats on both nesting beaches and in the marine environment. The greatest of these threats worldwide are incidental capture in fishing gear (bycatch), hunting of turtles, and collection of eggs for human consumption. There is a final critical habitat for this species; however, this project location does not overlap the critical habitat. 2.5.5 Insects The Monarch Butterfly, Danaus plexippus, is a candidate threatened or endangered species. The large and brilliantly -colored monarch butterfly is among the most easily recognizable of the butterfly species that call North America home. They have two sets of wings and a wingspan of three to four inches. Their wings are a deep orange with black borders and veins, and white spots along the edges. The underside of the wings is pale orange. Male monarchs have two black spots in the center of their hind wings, which females lack. These spots are scent glands that help males attract female mates. Females have thicker wing veins than males. The butterfly's body is black with white markings. Monarch butterflies are found across North America wherever suitable feeding, breeding, and overwintering habitat exists. They are broken into two populations separated by the Rocky Mountains, called the eastern and the western populations. Whether monarchs are present in a given area within their range depends on the time of year. They are one of the few migratory insects, traveling great distances between summer breeding habitat and winter habitat where they spend several months inactive. In the summer they range as far north as southern Canada. In the fall the eastern population migrates to the cool, high mountains of central Mexico and the western population migrates to coastal California, where they spend the entire winter. No critical habitat has been designated for this species. 2.5.6 Plants The Rough -leaved Loosestrife, Lysimachia asperulaifolia, is federally listed as endangered. Rough -leaf loosestrife is a perennial herb that grows 11.8 — 23.6 inches tall. The triangular shaped leaves are often opposite on shorter stems and tend to be arranged in whorls of three or four encircling taller stems. The leaves are widest at the base (0.3 — 0.8 in wide) and have three prominent veins. Contrary to the common name, the leaf surfaces are smooth to the touch. The yellow flowers are 0.6 inches across with yellow - orange anthers and occur on terminal racemes that are 1.2 — 3.9 in long. Flowering occurs from mid -May through June, with fruits present from July through October. This species generally occurs on the edges between longleaf pine uplands and pond pine pocosins on Rivers & Associates, Inc. Page 11 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 moist to seasonally saturated sands and on shallow organic soils overlaying sand. Rough - leaf loosestrife has also been found on deep peat in the low shrub community of large Carolina bays. No critical habitat has been designated for this species. 2.5.7 Designated Critical Habitat Critical habitat as defined and used in the Endangered Species Act is "specific geographic areas that contain features essential to the conservation of endangered or threatened species and that may require special management and protection". Critical habitat may also include areas that are not currently occupied by the species but will be needed for its recovery. U.S. Fish and Wildlife Service have not designated any critical habitat in the potential project location for currently listed threatened and endangered species. 2.6 Brown Boulevard WTP Proposed Disposal Impacts Construction of the Brown Boulevard WTP Backwash Solids discharge alternatives are not expected to negatively impact any of the endangered, threatened, rare or other species of concern discussed above. In some cases, the proposed discharge alternatives can be expected to potentially improve impacts relative to the permitted or existing condition by relocating it to larger receiving waters. The City of Havelock completed construction of Backwash Solids treatment improvements in 2018. The existing treatment system receives the combined filter backwash and softener regeneration waste lines from the Brown Boulevard WTP and directs it to a 450,000 gallon waste settling basin via pressurized backwash flow. The settling basin provides a quiescent environment for precipitated iron and manganese removed from the filters to settle. In addition, the softener brine regeneration waste mixes with fresh water from the filter backwash to produce a more dilute brine waste effluent stream. Following primary settling of the waste, supernatant is decanted from the settling basin to a 63,000 gallon secondary waste polishing basin with floating decanter mechanism. This basin provides a second opportunity for solids settling prior to final decant, dechlorination, composite sampling and discharge to the currently permitted location in McCotter Canal. In general, the proposed discharge alternatives are intended to relocate the final discharge to a much larger receiving waterbody in order to facilitate rapid dilution and dispersion of remaining pollutants within a regulated mixing zone in the Neuse River (Appendix D). Discharge Alternative No.I is a combined discharge with the existing Havelock WWTP Neuse River diffuser. It will consist of a new WTP Effluent Pump Station and 10" diameter effluent force main to connect to the existing 24" diameter WWTP effluent force main serving WWTP Outfall 002. WWTP Outfall 002 discharges via an 80-feet long multi -port diffuser located approximately 2,000 feet from the southern bank of the Neuse River just north of Marine Corps Air Station Cherry Point. The WWTP and WTP effluent flows and associated sampling would be separately maintained and monitored until they are combined Rivers & Associates, Inc. Page 12 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 in the effluent outfall force main, cascade aerator and diffuser. Discharge Alternative No. 2 is a new discharge located in the Neuse River near the Pine Cliff Recreation Area (Croatan National Forest) located just west of the river's constriction at the Ferry Terminal. The discharge would consist of a new WTP Effluent Pump Station, new 12" diameter effluent force main, directionally drilled subaqueous pipeline and multi -port diffuser. The majority of construction activities associated with the WTP Effluent Pump Station and force main will be limited to existing cleared WTP property and cleared City and NCDOT rights of way. Alternative No.I involves construction within previously developed corridors for the entire length. In addition, it makes common use of the existing 24" force main, cascade aerator and effluent diffuser that already exist across MCAS Cherry Point and into the Neuse River. Alternative No.2 makes use of existing NCDOT rights of way to the extent possible. Its route extends through rural, much less densely developed, and federally protected areas within the Croatan National Forest to the Pine Cliff Recreation Area. This route will require more parallel clearing than that of Alternative No.1. The final segment of the route is proposed to extend along NCSR 1732 which is a rustic, gravel road contained within a 30 — 35' wide cleared corridor that extends from NC Hwy 306 — Ferry Road to the shore of the Neuse River at Pine Cliff Recreation Area through the Croatan National Forest. Pine Cliff Recreation Area is a public recreational site located on a sandy shoreline of the Neuse River that offers a picnic shelter, fishing and hiking. Alternative No. 2 will also require installation of a new subaqueous force main (1,000 LF estimated length) and 12" diameter diffuser (40 LF estimated length) similar, albeit smaller, to that of the existing WWTP. Alternative No. 1 is expected to have no negative impacts on threatened or endangered (T&E) birds, mammals, reptiles, and plants. Furthermore, it makes use of the existing WWTP effluent and diffuser to improve dilution for both the WTP and WWTP discharges. Alternative No. 2 is also expected to have no negative impacts on threatened and endangered (T&E) birds, mammals, reptiles, and plants given that the proposed route is within or immediately adjacent to existing roadways. It will, however, require installation of a new discharge location within the Neuse River. This location is adjacent to a public recreation site owned by the U.S. government and operated by the National Forest Service. Although this receiving water location is classified identically to that of the WWTP discharge location, it is located only 2,800 feet upstream from the Class SA: HQW, NSW River segment that begins near the Cherry Point — Minnessott Beach Ferry Terminal. As such, this discharge location might be considered to have a more negative impact on receiving waters than Alternative No. 1. 2.6.1 Nutrient Discharge Limits The Brown Boulevard WTP is a pressure filtration and ion exchange softening treatment facility. The source of water is groundwater from the Castle Hayne Aquifer. The current and anticipated NPDES discharge permit for this type of facility includes quarterly monitoring for Ammonia Nitrogen, TKN, Nitrate + Nitrite, Total Nitrogen, and Total Phosphorous. As indicated in Section 2.2 above, the values for each Rivers & Associates, Inc. Page 13 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 constituent are well below the effluent limits typically allowed for treated waste discharge from a domestic wastewater treatment plant, result in a very small mass loading based on the discharge capacity of the WTP, and are minimal relative to the large volume and flow associated with the receiving waters. Furthermore, the dilution capability of the receiving waters under evaluation will be much greater than that provided or permitted previously by McCotter Canal, a Class SC; Sw, NSW low flow freshwater tributary to the Neuse River. As such, the proposed discharge is not anticipated to contribute consequentially to eutrophication. 2.6.2 Sediment Discharge Limits The current and anticipated NPDES discharge permit for the Brown Boulevard WTP includes a monthly average limit for total suspended solids (TSS) of 30 mg/L and daily maximum of 45 mg/L. The reported values for the past two years equate to 5.87 mg/L monthly average. The recent Backwash Solids treatment upgrades have provided significant improvement to the effluent TSS values observed previously. Supernatant discharged from the treatment works should provide similar results to a substantially larger water body. As such, the expected overall impact is considered a favorable improvement. 2.6.3 Dissolved Oxygen As noted above in Paragraph 2.1, the nature of the treated waste from the Brown Boulevard WTP would not be expected to consume additional oxygen once it enters the proposed onsite settling tanks. Sodium permanganate is an oxidant utilized in the water treatment process to precipitate soluble iron and manganese from raw water such that the particles can be removed via filtration. Liquid chlorine is utilized for primary and residual disinfection of finished water as it enters the distribution system. Since finished water is also used for backwashing the filters and softeners, calcium thiosulfate, a mild reducing agent, is injected to neutralize the effects of any residual chlorine in the waste stream. Based on the past two years of DMRs, the DO in the effluent stream has averaged 8.94 mg/L with a minimum value of 6.79 mg/1 all of which routinely exceed the water quality standard of 5.0 mg/L. The treated waste discharge from the Brown Boulevard WTP is not expected to contribute to low dissolved oxygen in the receiving waters. 2.6.4 Copper Effluent limits for Total Copper were added to the current NPDES discharge permit at the most recent renewal (3.7 ug/L monthly average and 5.80 ug/L daily maximum). Subsequent to receiving the limits, the City altered their sampling and testing to the low- level testing protocol. For the past two years, the vast majority of the observed concentrations have resulted in monthly average copper concentrations < 2 ug/L. However, there are four excursions that have been as high as 8 ug/L. A Reasonable Potential Analysis (Appendix G) was conducted based on the past two years of data. Rivers & Associates, Inc. Page 14 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 The results indicate there is reasonable potential to expect a Total Copper effluent concentration as high as 11.2 ug/L. Dilution by relocating the discharge to a regulatory mixing zone within the larger receiving waters of the Neuse River can be expected to quickly reduce these occasional excursions to acceptable surface water standards. 2.6.5 Zinc Effluent limits for Total Zinc were added to the current NPDES discharge permit at the most recent renewal (85.6 ug/L monthly average and 95.1 ug/L daily maximum). For the past two years, the observed concentrations have resulted in monthly average zinc concentrations of 49.55 ug/L. However, there are excursions that exceed the current limits. A Reasonable Potential Analysis (Appendix G) was conducted based on the past two years of data. The results indicate there is reasonable potential to expect a Total Zinc effluent concentration as high as 189.0 ug/L (95% confidence interval, 95% probability basis). Dilution by relocating the discharge to a regulatory mixing zone within the larger receiving waters of the Neuse River can be expected to quickly reduce the higher concentrations to within acceptable surface water standards. 2.6.4 Whole Effluent Toxicity (WET) The current and anticipated discharge permit for the Brown Boulevard WTP includes Acute Toxicity Pass/Fail Monitoring on a quarterly basis. Monitoring is performed as a Mysid Shrimp (Mysidopsis Bahia) 24-hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90%. During the past two years, the Brown Boulevard WTP has failed the WET test two of eight times. During the past four years, the WTP has failed the WET test four of sixteen times. Toxicity test results can be influenced by numerous factors such as residual chlorine concentration, chloride concentration, salinity, conductivity, metals concentration, pH, sampling and testing procedures, etc. Many eastern North Carolina water purveyors are struggling to routinely and consistently pass the WET test requirements. Dilution by relocating the discharge to a regulatory mixing zone within the larger receiving waters of the Neuse River is expected to significantly reduce the sample/testing concentration from 90% to that which can be supported by the dilution evaluation/model. The greater the dilution with associated reduced sample/testing concentration, the more likely WET test results will be reliably and consistently acceptable. 2.6.5 BOD Limitations Biochemical Oxygen Demand (BOD) limitations are applicable and always incorporated by NPDES permit as a limit and gauge for effectiveness of treatment processes associated with domestic and industrial wastewater treatment plants. However, BOD is not an applicable limit, nor is it required, by NPDES permit for water treatment waste discharges of the type generated by this facility. No impact is anticipated. Rivers & Associates, Inc. Page 15 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 2.6.6 Stormwater Management During construction, temporary impacts may be experienced. However, the project will be designed to comply with all State and local stormwater regulations and requirements. Permits will be obtained as applicable, and measures will be employed as required to mitigate potential impacts. 2.6.7 Riparian and Wetland Buffers This project will be designed to comply with all riparian and wetland buffer requirements with associated permitting and mitigations if necessary. 2.6.8 Interbasin Water Transfer This project does not involve interbasin transfer of water. 2.6.9 By-products of Reverse Osmosis Treatment Plants This project proposes the continued use of the existing pressure filtration and ion exchange softening process associated with the current Brown Boulevard WTP. A change to reverse osmosis membrane process is not considered reasonably cost- effective, not is it proposed. The waste effluent stream from a membrane plant will also contain highly concentrated pollutants that will still require proper disposal in order to minimize environmental impacts similar to that which are considered for the existing WTP. 3.0 Description of Proposed Project 3.1 Applicant Name, Mailing Address, Phone Number, Contact Person Chris McGee Havelock City Manager 1 Governmental Avenue P.O. Box 368 Havlock, North Carolina 28532 (252) 444-6400 3.2 Facility Name, Address, County, Phone Number, Contact Person Brown Boulevard Water Treatment Plant Physical Address: 527 Brown Boulevard Mailing Address: P.O. Box 368 Havelock, NC 28532 Havelock, NC 28532 David Hemenwa , ORC — Water Treatment Plant Supervisor 252 444-6420 Rivers & Associates, Inc. Page 16 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 3.3 Discharge Alternatives Analysis Preparer's Name, Mailing Address, Phone Number, Contact Person Gregory J. Churchill, P.E., President Rivers & Associates, Inc. 107 E. Second Street P.O. Box 929 Greenville, North Carolina 27858 (252) 752-4135 4.0 Population Projections 4.1 Residential Population Projections The project planning area is urban. According to data obtained from the US Census Bureau and the NC Office of State Budget and Management, the population in Havelock has been decreasing since at least 2000 as reflected in Table 3. Havelock's population is integrally tied to the mission and staffing of MCAS Cherry Point in any given time period. The average number of people per household in Havelock from 2017-2021 was 2.66 as reflected by US Census QuickFacts. Table 3 Historical Population Trends Year 1990 2000 2010 2020 Population 20,463 22,460 21,095 16,996 Percent Increase 10% -6% -19% Havelock's recent Local Water Supply Plan (Appendix A) projections suggest an average increase in customers and associated water sales of approximately 4% per decade. For purposes of this Discharge Alternatives Evaluation, 4% per decade is reflected in Table 4 below. ir Table 4 11 Population Projections Year 2020 2030 2040 Population 16,996 17,676 18,383 Percent Increase 4% 4% 4.2 Water Flow Projections 4.2.1 Current Average Daily Flow (Finished Water Produced) The 2021 Local Water Supply Plan (Appendix A) for Havelock includes a breakdown of finished water produced into categories as indicated in Table 5 below: Rivers & Associates, Inc. Page 17 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 5 2021 Average Daily Flow (ADF) Produced Category Finished Water (MGD) Residential 0.587 Commercial 0.345 Industrial 0.000 I nstitutional 0.008 System Process 0.185 Unaccounted-for 0.063 Total 1.188 4.2.2 Maximum Daily Flow (Finished Water Produced) The Brown Boulevard WTP is designed and permitted to produce 2.8 MGD of finished water. Water supply and treatment facilities must be capable of producing sufficient capacity to meet maximum daily demand (MDD) with peak hour demands met from storage. In general, maximum daily demand for water systems is approximately 1.5 times the average daily demand. The following table summarizes the MDD versus ADD at the Brown Boulevard WTP over the past several years. Table 6 Average Daily Demand (ADD) Versus Maximum Daily Demand (MDD) Year 2018 2019 2020 2021 Average Daily Demand (MGD) 1.097 1.212 1.252 1.196 Maximum Daily Demand (MGD) 1.570 1.572 1.704 1.954 MDD/ADD Ratio 1.43 1.30 1.36 1.63 Based on these recent data, the MDD/ADD ratio for the Havelock Water System has ranged from 1.30 — 1.63 with an average of approximately 1.43. 4.2.3 Current Flow (Backwash Waste Effluent) The existing six (6) filters are currently backwashed every 21 hours, and each of the four softeners are regenerated after 375,000 gallons of water has passed. Appendix E summarizes the daily waste flows and waste effluent constituent concentrations from the Daily Monitoring Reports. The current intermittent daily waste flows range from 0 — 314,000 gpd with an average daily flow of 102,000 gpd. 4.2.4 Future 20-Year Flow Projections (Finished Water Produced) Based on water customers and associated finished water demand increasing at the same rate as the City population projections (approximately 4% per decade), the projected finished water flows are as indicated in Table 6 below: Rivers & Associates, Inc. Page 18 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 7 Future 20-Year Average Daily Flow (ADF) Projections Category Finished Water (MGD) Residential 0.635 Commercial 0.373 Industrial 0.000 Institutional 0.009 System Process 0.200 Unaccounted-for 0.068 Total 1.285 4.2.5 Future 20-Year Maximum Daily Flow Projections (Finished Water Produced) Based on the MDD/ADD multipliers summarized in paragraph 4.2.2 above, the future 20- year maximum daily demand for which the Brown Boulevard WTP must provide is expected to range from a low of 1.67 MGD, to an average of 1.84 MGD, or as high as 2.10 MGD. This is as much as 75 percent of the current WTP capacity. 4.2.6 Future 20-Year Flow Projections (Backwash Waste Effluent) At the WTP production capacity of 2.8 MGD, the filters would require daily backwashing Likewise, the softeners would require regeneration twice per day. Based on this frequency of backwashing and regeneration, the waste flow generated equals approximately 290,000 GPD. The backwash waste treatment system was designed to accept and treat a maximum daily waste flow rate of 290,000 GPD over a seven -hour period (Appendix H — Backwash Solids Handling Design Memorandum). 5.0 Technologically Feasible Alternatives 5.1 Backwash Waste Treatment 5.1.1 Treatment Alternative #1 - No Action Upgrades to the Backwash Waste Treatment system at the Brown Boulevard WTP were completed in 2018 to improve TSS removal due to recurring NPDES permit violations. The improvements consist of a primary waste settling basin, secondary waste polishing basin, floating decant mechanism, solids handling pump station, sludge drying beds, and underdrain pump station as described in Paragraph 1.1.1 above. The system is controlled via motorized control valves and PLC -based SCADA logic. The cost of these improvements was approximately $3,200,000. Discharge currently remains into McCotter Canal. Since completion of the Backwash Waste Treatment system upgrades, the WTP routinely complies with TSS effluent limits, and no TSS-related NOVs have been received. Rivers & Associates, Inc. Page 19 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 This Discharge Alternatives Evaluation is intended to deal with Whole Effluent Toxicity compliance, as well as compliance with Total Copper and Total Zinc effluent limits. The conventional method for disposal of chloride -laden backwash waste from pressure filter -ion exchange softener WTPs in eastern North Carolina is via dilution to meet surface water standards. Although additional waste pollutant removal/reduction can be achieved by treatment methods such as reverse osmosis, distillation or ion -exchange, they are not utilized to treat backwash waste streams due to the high capital and operational costs; and the more highly concentrated residual waste stream produced by such methods still require ultimate disposal. The only cost-effective and environmentally friendly treatment alternative available is already in service, and is working well for the intended purpose. Alternative No. 1 - No Action is the only viable option for Treatment. Refer to Appendix I for the record drawings for the Site Piping Plan and Hydraulic Profile for the WTP Backwash Solids Handling Improvements. 5.2 Disposal Alternatives 5.2.1 Disposal Alternative A - Connection to Existing WWTP Havelock operates a 2.25 MGD WWTP that serves residents, commercial businesses and industry within the corporate limits of the City. The WWTP is a tertiary nutrient removal facility that includes primary screening and grit removal, secondary treatment via use of two -stage aeration followed by clarification, and finally tertiary denitrification filters prior to ultraviolet disinfection and disposal via the effluent pump station, force main, cascade aerator and effluent diffuser into the Neuse River. A solids stabilization tank is provided for storage and digestion of solids prior to thickening with a gravity belt thickener. A waste solids holding tank, pumps and truck loadout station are provided for final hauling and disposal of stabilized residuals via land application. The activated sludge treatment process provides for biological oxidation and reduction of BOD and TSS, as well as nitrification of ammonia to nitrite and nitrate. Dual clarifiers provide for the quiescent settling and removal of settleable solids. Alum is fed for chemical coagulation and enhanced removal of phosphorous. Tertiary denitrification filters utilize methanol addition to allow for further reduction of nitrate and nitrite for release as nitrogen gas. The WWTP is currently rated for 2.25 MGD. The average daily flow over the past two years is approximately 1.32 MGD which is approximately 59% of permitted capacity. During that same time period, the ADF for only a single month exceeded 80% of capacity. The ADF for February, 2021 was 2.0 MGD which is approximately 89% of plant capacity (Appendix K — WWTP DMRs Summary). The City has experienced Rivers & Associates, Inc. Page 20 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 several Notices of Violation and/or Notices of Deficiency over the past several years related to noncompliance with currently permitted nitrogen, phosphorous and BOD limits. The NPDES discharge permit (Appendix L) includes provisions and requirements relative to future increases in the WWTP capacity to 2.8 MGD and 3.5 MGD respectively. In short, to increase capacity to 2.8 MGD, the City would need to design and install improvements to provide a 3-stage Biological Nutrient Removal (BNR) process, including a nitrification recycle pump station, final clarifier pump station and clarifier splitter box. To achieve plant capacity of 3.5 MGD, the City would need to design and install improvements to provide a new manual bar screen, 5-stage BNR process, additional clarifier, additional denitrification filters, additional solids storage and dewatering filters. City staff have discussed internally the alternative to transmit treated backwash waste flow from the WTP to the WWTP for treatment and disposal. The City has rejected this as a viable alternative due to the potential adverse impact of the brackish WTP discharge on the microbial population required to sustain a stable activated sludge treatment process at the WWTP. In addition, the hydraulic capacity required to handle the WTP could be as much as 290,000 gpd of the current available WWTP capacity. Adding this additional capacity to the current demand at the WWTP would considerably accelerate the need to upgrade and expand the WWTP capacity. The cost to expand the WWTP and replace lost capacity resulting from the WTP discharge is not considered reasonable or cost- effective. As such, Disposal Alternative A is not considered viable. 5.2.2 Disposal Alternative B — Land Application The treated waste stream from the Brown Boulevard ion exchange softening water treatment plant contains brine solution produced from the regeneration process. Given that the effluent contains brine, it is not amenable to land application as acknowledged in the NPDES EAA Guidance Document. As such, Disposal Alternative B is eliminated from further consideration. 5.2.3 Disposal Alternative C - Wastewater Reuse Since the Brown Boulevard WTP generates a brine waste from the softener regeneration system, it is not amenable to a Wastewater Reuse disposal alternative. Disposal Alternative C is not viable and not considered further. 5.2.4 Disposal Alternative D — Surface Water Discharge There are two locations of interest relative to potential surface water discharge into a larger receiving water (Appendix D): • Class SB; Sw, NSW @ existing Havelock WWTP Outfall 002 in the Neuse River • Class SB; Sw, NSW @ Pine Cliff Recreation Area in the Neuse River Rivers & Associates, Inc. Page 21 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Zero Flow Stream Restrictions: 15A NCAC 2B.0206(d) disallows new or expanding discharge of oxygen -consuming waste to the surface waters of North Carolina if the summer 7Q10 and 30Q2 stream flows are estimated to be zero. As discussed in Paragraphs 2.1 and 2.6.3 above, the treated waste stream from the Brown Boulevard WTP does not consist of oxygen -consuming waste. In fact, the actual DO concentration of the waste stream far exceeds the minimum requirements for the potential receiving streams. The Neuse River estuary is tidal downstream of the City of New Bern, and the two discharge locations under consideration for the City of Havelock WTP are tidally influenced. The USGS South Atlantic Water Science Center (Raleigh Office) refrains from providing low -flow estimates for streams known or suspected of being tidally affected. No techniques currently exist that allow the effects of tides on low flows to be quantified. Since the proposed discharge is non -oxygen consuming, zero flow stream restrictions are not applicable to a surface water discharge from the Brown Boulevard WTP. Tertiary Filtration: The NPDES Unit requires that all direct discharge systems for oxygen -consuming wastes be evaluated with and without tertiary filtration. Domestic and industrial wastewater treatment plants produce oxygen -consuming wastes, and frequently employ tertiary filtration with very low limits for BOD, TSS and nutrients. The nature of the treated waste discharge from the Valhalla WTP is not oxygen - consuming. Tertiary Filtration evaluation is not applicable. 5.2.4.1. Disposal Alternative #D1 - Havelock WWTP Outfall 002 in the Neuse River Backwash waste treatment provided at the WTP as described in Paragraph 5.1.1 allows precipitated iron and manganese to settle such that the supernatant can be pumped to surface water. In addition, some mixing and blending of the fresh filter backwash waste occurs with the brine softener regeneration waste resulting in a supernatant that consists of a dilute brine discharge. In order to maintain sufficient volume and time for treatment at the WTP capacity, the supernatant should be discharged at a minimum 690 gpm flow rate. At this rate, discharge will occur over an approximate time period of 7 hours each day at the rated capacity of the WTP. Disposal Alternative #D 1 will route a force main approximately 20,200 LF from the WTP site to the WWTP. A new WTP Effluent Pump Station and 10" diameter effluent force main would connect to the existing 24" diameter WWTP effluent force main serving WWTP Outfall 002. WWTP Outfall 002 discharges via an 80-feet long multi -port diffuser located approximately 2,000 feet from the southern bank of the Neuse River just north of Marine Corps Air Station Cherry Point. Preliminary evaluation of the hydraulics associated with the existing WWTP pump station, outfall, and diffuser suggests that sufficient capacity can be made available to Rivers & Associates, Inc. Page 22 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 accommodate the additional flow from the proposed WTP Effluent Pump Station. Further detailed evaluation is still required to finalize the design requirements. The WWTP and WTP effluent flows and associated sampling would be separately maintained and monitored until they are combined in the effluent outfall force main, cascade aerator and diffuser. The proposed alignment for this alternative is depicted in Appendix D with the force main installed within the rights of way of McCotter Boulevard (SR 1824), NC Hwy 101, Mimosa Drive (SR 1777), and Jackson Drive. 5.2.4.1.1 Cost Estimates for Disposal Alternative #D1 Capital Costs for Disposal Alternative #D1 — Havelock WWTP Outfall 002 in the Neuse River are outlined in Tables 8 - 9 below. The estimated construction costs included in Table 8 represent installed costs which include the cost of piping, pumping equipment, other materials, labor and installation. Estimated design cost, other technical service fees, and land acquisition costs are included in Table 9. Piping, equipment and other materials associated with Disposal Alternative #D1 will be constructed (1) on the WTP site which is already owned by the City, (2) within NCDOT public rights of way, or (3) on the WWTP site which is already owned by the City. As such, there is no cost associated with land acquisition. Costs associated with easement mapping are included in Easement Mapping Fee category of Table 9. Rivers & Associates, Inc. Page 23 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 8 Disposal Alternative #D1 - Estimated Capital Costs for Construction Item Description Quantity Unit Unit Cost Extended Cost Mobilization and Bonding (not to exceed 3%) 1 LS $ 165,000.00 $ 165,000.00 Clearing & Grubbing 1 AC $ 20,000.00 $ 20,000.00 WTP Effluent Pump Station 1 LS $ 650,000.00 $ 650,000.00 Core and Tie-in to Pump Station (2 - WTP) 3 EA $ 7,500.00 $ 22,500.00 Tie Into Existing 24" WWTP Effluent FM 11 LS $ 25,000.00 $ 25,000.00 24" Check Valve and Vault (WWTP) 1 LS $ 30,000.00 $ 30,000.00 Pig Launching Station (WTP) 1 LS $ 50,000.00 $ 50,000.00 Pig Retrieval Station (WWTP) 1 LS $ 50,000.00 $ 50,000.00 Remove Existing 2" PVC NPW (WTP) 40 LF $ 20.00 $ 800.00 Remove and Replace Existing 10" RJDIP and Fittings (WTP) 10 LF $ 250.00 $ 2,500.00 Remove and Replace Existing 12" RJDIP and Fittings (WTP) 30 LF $ 280.00 $ 8,400.00 2" PVC PVC NPW (WTP) 40 LF $ 20.00 $ 800.00 Tie Into Existing 12" Force Main (WTP) 1 EA $ 8,000.00 $ 8,000.00 10" PVC Sewer Force Main 14,100 LF $ 120.00 $ 1,692,000.00 10" RJPVC Sewer Force Main 4,700 LF $ 160.00 $ 752,000.00 10" RJDIP Sewer Force Main 460 LF $ 210.00 $ 96,600.00 10" Horizontal Directional Bore w/ Fusible° PVC 950 LF $ 350.00 $ 332,500.00 Additional Ductile Iron Fittings 20,000 LBS $ 26.00 $ 520,000.00 10" Plug Valve 6 EA $ 8,500.00 $ 51,000.00 Automatic Air-Vacuum/Pressure Air Valve 5 EA $ 9,000.00 $ 45,000.00 1" Manual Air Release Valve 11 EA $ 1,000.00 $ 1,000.00 20" Steel Casing (Jack & Bore) 420 LF $ 400.00 $ 168,000.00 Remove and Replace Existing Water Services as Needed 41 EA $ 600.00 $ 24,600.00 Remove and Replace Existing Water Meter as Needed 41 EA $ 1,000.00 $ 41,000.00 Remove and Replace Existing RCP Under Driveway 20 EA $ 1,000.00 $ 20,000.00 Asphalt Pavement Removal and Replacement 1,500 SY $ 75.00 $ 112,500.00 Concrete Sidewalk Removal and Replacement 1601 LF $ 170.00 $ 27,200.00 Concrete Curb and Gutter Removal and Replacement 160 LF $ 75.00 $ 12,000.00 Concrete Driveway Removal and Replacement 700 SY $ 110.00 $ 77,000.00 Asphalt Driveway Removal and Replacement 50 SY $ 90.00 $ 4,500.00 ABC stone in Driveways 2,000 LF $ 30.00 $ 60,000.00 Construction Barriers 80 LF $ 50.00 $ 4,000.00 Straw Wattles 401 EA $ 300.00 $ 12,000.00 Silt Fence 5,000 LF $ 10.00 $ 50,000.00 Silt Fence Outlet 20 EA $ 500.00 $ 10,000.00 Excelsior Matting for Erosion Control 1,500 SY $ 10.00 $ 15,000.00 Railroad Pipeline Crossing Signs 2 EA $ 1,000.00 $ 2,000.00 Fiberglass Railroad Utility Markers 2 EA $ 500.00 $ 1,000.00 Bypass Pumping and Piping 11 LS $ 25,000.00 $ 25,000.00 Select Backfill 3,000 CY $ 40.00 $ 120,000.00 Stabilization Stone - Trench 50 CY $ 100.00 $ 5,000.00 Rip Rap 60 TN $ 100.00 $ 6,000.00 Construction Entrance Pad 2 EA $ 10,000.00 $ 20,000.00 Testing Allowance 1 LS $ 10,000.00 $ 10,000.00 VFD Pump Control and SCADA Improvements (WTP) 11 LS $ 75,000.00 $ 75,000.00 Electrical Improvements 11 LS $ 100,000.00 $ 100,000.00 Sub -total $ 5,524,900.00 Rivers & Associates, Inc. Page 24 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 9 Disposal Alternative 131 - Total Estimated Capital Costs for Project Sub -total Construction Cost Estimate ------------------------------------------------------- Contingena P, (10%) ----------------------------------------------------------- Engineering Services" Permittin $ 5,524,900.00 $ - 552,500.00 --------------- $ — 40,000.00 _NPDES En ineerin ort $ �20,000.00 __ Environmental Information Document $ 15,000.00 Route Topographic Survey $ 75,000.00 Design and Peanitting $Y 380,000.00 Bidding and Negotiation $ 20,000.00 Construction Administration $ 190,000.00 Resident Inspection 12 months $ 250,000.00 WaffantZ Assistance $ 5,000.00 Easement Mapping $ 10,000.00 Geotech_nical Services $ 7,50_0.00 Le al Fees $ Y 10,000.00 Permit Fees $ 10, 000.00 Land Acquisition $ - Tota 1 $ 7,109, 900.00 Recurring costs for Disposal Alternative #D1 are shown in Table 10 below. The recurring costs include annual costs that differ from that which are already required. Recurring costs could include items such as operation and maintenance, operator and support staff costs, laboratory costs, connection fees and subsequent user fees, permit compliance fees, and utility (electrical) costs. All major facilities and associated equipment are anticipated to have a minimum twenty-year service life. As such, no replacement costs are factored into the evaluation. No additional personnel are anticipated to be added to the current WTP staff; rather, any additional responsibilities will be assumed by current personnel. No additional customers or associated fees are expected to result from the backwash solids disposal project. Permit compliance fees are depicted on an average annual basis. Table 10 MEOW Disposal Alternative #D1 Annual Recurring Costs Pump Station Operation and Maintenance $1,000.00 ?i ]2i22 and Easement Operation and Maintenance $5,000.00 O�eratorand Support Staff (Sam (ping) $1,500.00 Laborato Costs $0.00 Connection Fees and Subsequent User Fees --------------------------------------------------------------------------------------------------------------- Permit Compliance Fees --------------------------------------------------------------------------------------------------------------- Utilit (Electrical) Costs $0.00 $0.00 $16,300.00 Total Annual Expenses $23,800.00 Rivers & Associates, Inc. Page 25 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 The estimated construction cost for Disposal Alternative #D1 is $6,077,400. The total estimated project cost is $7,109,900. The expected annual O&M costs are $23,800 per year. 5.2.4.2 Disposal Alternative #D2 — Pine Cliff Recreation Area in the Neuse River Disposal Alternative #D2 will route a force main approximately 58,700 LF from the WTP site to the shore of the Neuse River near the Pine Cliff Recreation area in the Croatan National Forest. Due to the longer length of force main, a 12" diameter pipe is required to maintain reasonable pumping pressure. In order to maintain a minimum velocity of 2 fps, the pumping rate will increase minimally to approximately 700 gpm. A subaqueous directional bore will be extended from the shore to approximately 1,000 LF into the Neuse River. A diffuser will be anchored, installed and marked along the river bottom to encourage good dispersion and mixing of the discharge and the instream flow. The proposed alignment for this alternative is depicted in Appendix D with the force main installed within the rights of way of McCotter Boulevard (SR 1824), NC Hwy 101, NC Hwy 306 — Ferry Road and Pine Cliff Road (SR 1732). 5.2.4.2.1 Cost Estimates for Disposal Alternative #D2 Capital Costs for Disposal Alternative #D2 — Pine Cliff Recreation Area in the Neuse River are outlined in Tables 11 — 12 below. The estimated construction costs included in Table 11 represent installed costs which include the cost of piping, pumping equipment, other materials, labor and installation. Estimated design cost, other technical service fees, and land acquisition costs are included in Table 12. Piping, equipment and other materials associated with Disposal Alternative #D2 will be constructed (1) on the WTP site which is already owned by the County, (2) within NCDOT public rights of way, (3) within an easement across the Croatan National Forest, or (4) within an easement across the Neuse River near the Pine Cliff Recreation Area which will be acquired from the State Property Office. As such, there is no cost associated with land acquisition. Costs associated with easement mapping and the minimum $500 State Property Office processing fee are included in Easement Mapping and Permit Fee categories of Table 12. Rivers & Associates, Inc. Page 26 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 11 Disposal Alternative #D2 - Estimated Capital Costs for Construction Item Description Quantity Unit Unit Cost Extended Cost Mobilization and Bonding (not to exceed 3%) 1 LS $ 415,000.00 $ 415,000.00 Clearing & Grubbing 10 AC $ 20,000.00 $ 200,000.00 WTP Effluent Pump Station 1 LS $ 600,000.00 $ 600,000.00 Core and Tie-in to Pump Station (2 - WTP) 3 EA $ 7,500.00 $ 22,500.00 Pig Launching Station (WTP) 1 LS $ 50,000.00 $ 50,000.00 Pig Retrieval Station (WWTP) 11 LS $ 50,000.00 $ 50,000.00 Remove Existing 2" PVC NPW (WTP) 40 LF $ 20.00 $ 800.00 Remove and Replace Existing 10" RJDIP and Fittings (WTP) 10 LF $ 250.00 $ 2,500.00 Remove and Replace Existing 12" RJDIP and Fittings (WTP) 30 LF $ 280.00 $ 8,400.00 2" PVC PVC NPW (WTP) 40 LF $ 20.00 $ 800.00 Tie Into Existing 12" Force Main (WTP) 1 EA $ 8,000.00 $ 8,000.00 12" PVC Sewer Force Main 43,000 LF $ 145.00 $ 6,235,000.00 12" RJPVC Sewer Force Main 14,500 LF $ 200.00 $ 2,900,000.00 12" RJDIP Sewer Force Main 200 LF $ 250.00 $ 50,000.00 12" Horizontal Directional Bore w/ Fusible® PVC and Diffuser 3,000 LF $ 400.00 $ 1,200,000.00 Additional Ductile Iron Fittings 35,000 LBS $ 26.00 $ 910,000.00 12" Plug Valve 11 EA $ 9,500.00 $ 104,500.00 Automatic Air-Vacuum/Pressure Air Valve 15 EA $ 9,000.00 $ 135,000.00 1" Manual Air Release Valve 31 EA $ 1,000.00 $ 3,000.00 24" Steel Casing (Jack & Bore) 140 LF $ 450.00 $ 63,000.00 Remove and Replace Existing Water Services as Needed 62 EA $ 600.00 $ 37,200.00 Remove and Replace Existing Water Meter as Needed 62 EA $ 1,000.00 $ 62,000.00 Remove and Replace Existing RCP Under Driveway 30 EA $ 1,000.00 $ 30,000.00 Asphalt Pavement Removal and Replacement 500 SY $ 75.00 $ 37,500.00 Concrete Curb and Gutter Removal and Replacement 100 LF $ 75.00 $ 7,500.00 Concrete Driveway Removal and Replacement 650 SY $ 110.00 $ 71,500.00 Asphalt Driveway Removal and Replacement 150 SY $ 90.00 $ 13,500.00 ABC stone in Driveways 1,150 LF $ 30.00 $ 34,500.00 Construction Barriers 80 LF $ 50.00 $ 4,000.00 Straw Wattles 100 EA $ 300.00 $ 30,000.00 Silt Fence 10,000 LF $ 10.00 $ 100,000.00 Silt Fence Outlet 401 EA $ 500.00 $ 20,000.00 Excelsior Matting for Erosion Control 3,750 SY $ 10.00 $ 37,500.00 Select Backfill 5,000 CY $ 40.00 $ 200,000.00 Stabilization Stone - Trench 150 CY $ 100.00 $ 15,000.00 Rip Rap 150 TN $ 100.00 $ 15,000.00 Construction Entrance Pad 2 EA $ 10,000.00 $ 20,000.00 Testing Allowance 1 LS $ 20,000.00 $ 20,000.00 Pump Control and SCADA Improvements (WTP) 1 LS $ 75,000.00 $ 75,000.00 Electrical Improvements 11 LS $ 100,000.00 $ 100,000.00 Sub -total $ 13,888,700.00 Rivers & Associates, Inc. Page 27 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 12 Disposal Alternative D2 - Total Estimated Capital Costs for Project Sub -total Construction Cost Estimate_ Contingency@ (10% ---------------------------------------------------- Engineering Services NPDES Permittin $ 13,888,700.00 $ 1,388,900.00 $ 100,000.00 _ Engineering Report $ 20,000.00 �15,000.00 Environmental Information Document $ Route Topographic SyEeZ and River Soundings $ 20_0,00_0.00 Design and Permitting $ 920,000.00 Bidding and Negotiation $ 20,000.00 Construction Administration $ 29_5,00_0.00 Resident Inspection 18 months $ 390,000.00 Warranry Assistance $ 5,000.00 Easement Mapping $ 25,000.00 Geotech_nical Services $ 25,000.00 Le al Fees $ 20,000.00 Permit Fees $ 20, 000.00 Land Ac uisition $ - Tota 1 $ 17, 332, 600.00 Recurring costs for Disposal Alternative #D2 are shown in Table 13 below. The recurring costs could include annual operation and maintenance, operator and support staff costs, laboratory costs, connection fees and subsequent user fees, permit compliance fees, and utility (electrical) costs. All major facilities and associated equipment are anticipated to have a minimum twenty year service life. As such, no replacement costs are factored into the evaluation. No additional personnel are anticipated to be added to the current WTP staff, rather, any additional responsibilities will be assumed by current personnel. No additional customers or associated fees are expected to result from the backwash solids disposal project. Permit compliance fees are depicted on an average annual basis. Table 13 Disposal Alternative #D2 Annual Recurring Costs Pump Station Operation and Maintenance ------------------------------ Piping_ and Easement Operation and Maintenance $1,000.00 $10,000.00 Operator and Support Staff LSampE $4,000.00 Laborato Costs $0.00 Connection Fees and Subsequent User Fees $0.00 Permit Com fiance Fees $0.00 Utility Electrical Costs ---------- - $8,300.00 Total Annual Expenses $23,300.00 The estimated construction cost for Disposal Alternative #D2 is $15,277,600. The total estimated project cost is $17,332,600. The expected annual O&M costs are $23,300 per year. Rivers & Associates, Inc. Page 28 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 6.0 Selection of an Alternative 6.1 Backwash Waste Treatment As indicated in Paragraph 5.1.1 above, construction of the only cost-effective and environmentally friendly treatment alternative was completed in 2018, and is working well for the intended purpose. No additional treatment actions are required for the backwash waste stream. 6.2 Disposal Alternatives 6.2.1 Monetary Factors (Present Value of Costs Analysis) In order to provide a cost comparison between the technologically feasible disposal alternatives discussed above, a 20-year Present Value of Costs Analysis (PVCA) is provided below. Recurring costs over the 20-year analysis period are converted to a present value based on the current Federal discount rate as identified in the Whitehouse Office of Management and Budget (OMB) Circular A-94. All converted present values are added to the respective capital cost for each alternative in order to fairly compare the Present Value of Cost for each option. The following formula is used to compute Present Value of Costs. n _ +r 1 PV = Co + C (1 r(1 + r)n PV = Present value of costs Co = Cost incurred in the present year C = Recurring annual cost n = Ending year for the analysis (life of facility) r = Current Federal discount rate Rivers & Associates, Inc. Page 29 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 14 Present Value of Costs Analysis Disposal Alternatives The "real" discount rate is used from Discount rate (r) = 4.00% Appendix C of OMB circular A-94: htt ://www.whitehouse. ov/omb/circulars a Number of Years (n)= 20 The planning period is 20 years. Disposal Alternative Disposal Alternative #1 #2 Initial Capital Costs (Co)= $ 7,109,900.00 $ 17,332,600.00 ------------------------------------ Annual Recurring Costs (C) _ ----------------------- $23,800.00 ----------------------- ----------------------- $23,300.00 ----------------------- ----------------------------------- Present Value of (n) years of Annual Recurring Costs = $ 323,449.77 $ 316,654.60 [PV=((C)*(1+r)"(n)-1)/r*(1+r)"n] --------------------- --------------------------------------------------------------- Present Value = $ 7,433,349.77 $ 17,649,254.60 [PV=(Co)+PV(C)] Based on the Present Value of Costs Analysis summarized in Table 14 above, Disposal Alternative #D1 — Havelock WWTP Outfall 002 in the Neuse River is significantly less expensive than Disposal Alternative #D2 over the 20-year planning period. The Present Value of Costs for the WWTP Outfall option is $7,433,350 which is approximately 42% of the Present Value of Costs for the Pine Cliff Recreation Area option. As such, Disposal Alternative #D1 — Havelock WWTP Outfall 002 in the Neuse River is the most economical method of disposal of the technologically feasible alternatives. 6.2.2 Non -Monetary Factors Table 15 below summarizes the additional non -monetary factors that influence which alternative is the preferred means for addressing disposal of the treated waste effluent from the Brown Boulevard WTP. Rivers & Associates, Inc. Page 30 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 15 Non -Monetary Factors Matrix Rating System Ir (1=Least Desirable ; 10 = Most Desirable) Disposal Alternative #1 Disposal Alternative #2 Sustainability Considerations 7 3 Operator Training Requirements ------------------ 7 --------------------- 5 EmironmentalIssues/Concerns ----------------------------------- Community Objections 9 --------------------- 7 3 -------------------- 4 Tota I s 1 30 1 15 Disposal Alternative #D1 is judged to be more sustainable since maintenance of the shorter force main combined with the existing outfall and discharge location is less taxing than that of a new, more lengthy force main with new discharge location. Operator training is scored as slightly favorable to Alternative #D 1 since sampling and maintenance is already in place for the existing discharge location. Environmental issues/concerns are scored more favorable for Alternative #D1 since the discharge already exists while Alternative #D2 would be a new discharge to a similar water body, but that is further downstream and much closer to High Quality Waters. Alternative #D 1 is expected to generate less community objections due to the fact that the WWTP discharge exists and has already gone through public hearing. Portions of Discharge Alternative #D2 are located within federally protected lands of the Croatan National Forest and nearby a public recreational area. Given these scores, Disposal Alternative #D 1 is definitively favored on the basis of Non -monetary factors. 6.3 Selected Combination of Alternatives The most environmentally favorable combination of treatment and disposal alternatives consists of Treatment Alternative #1 — No Action with Disposal Alternative #D1 — Havelock WWTP Outfall 002 in the Neuse River. The total Present Value of Costs for this combination of alternatives equals $7,433,350 which is significantly less expensive than the other combination of alternatives. The total estimated construction cost is $6,077,400, and is presented in Table 16 below. In addition, the proposed total estimated project cost is $7,109,900 and is detailed in Table 17. The estimated annual recurring costs associated with this combination of alternatives is shown in Table 18 as $23,800/year. Rivers & Associates, Inc. Page 31 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 16 Proposed Project -Estimated Capital Costs for Construction Item Description Quantity Unit Unit Cost Extended Cost Mobilization and Bonding (not to exceed 3%) 1 LS $ 165,000.00 $ 165,000.00 Clearing & Grubbing 1 AC $ 20,000.00 $ 20,000.00 WTP Effluent Pump Station (Dual Vertical Turbine Pumps) 1 LS $ 650,000.00 $ 650,000.00 Core and Tie-in to Pump Station (2 - WTP) 3 EA $ 7,500.00 $ 22,500.00 Tie Into Existing 24" WWTP Effluent FM 1 LS $ 25,000.00 $ 25,000.00 24" Check Valve and Vault (WWTP) 1 LS $ 30,000.00 $ 30,000.00 Pig Launching Station (WTP) 1 LS $ 50,000.00 $ 50,000.00 Pig Retrieval Station (WWTP) 1 LS $ 50,000.00 $ 50,000.00 Remove Existing 2" PVC NPW (WTP) 40 LF $ 20.00 $ 800.00 Remove and Replace Existing 10" RJDIP and Fittings (WTP) 10 LF $ 250.00 $ 2,500.00 Remove and Replace Existing 12" RJDIP and Fittings (WTP) 30 LF $ 280.00 $ 8,400.00 2" PVC PVC NPW (WTP) 40 LF $ 20.00 $ 800.00 Tie Into Existing 12" Force Main (WTP) 1 EA $ 8,000.00 $ 8,000.00 10" PVC Sewer Force Main 14,100 LF $ 120.00 $ 1,692,000.00 10" RJPVC Sewer Force Main 4,700 LF $ 160.00 $ 752,000.00 10" RJDIP Sewer Force Main 460 LF $ 210.00 $ 96,600.00 10" Horizontal Directional Bore w/ Fusible® PVC 950 LF $ 350.00 $ 332,500.00 Additional Ductile Iron Fittings 20,000 LBS $ 26.00 $ 520,000.00 10" Plug Valve 6 EA $ 8,500.00 $ 51,000.00 Automatic Air-Vacuum/Pressure Air Valve 5 EA $ 9,000.00 $ 45,000.00 1" Manual Air Release Valve 1 EA $ 1,000.00 $ 1,000.00 20" Steel Casing (Jack & Bore) 420 LF $ 400.00 $ 168,000.00 Remove and Replace Existing Water Services as Needed 41 EA $ 600.00 $ 24,600.00 Remove and Replace Existing Water Meter as Needed 41 EA $ 1,000.00 $ 41,000.00 Remove and Replace Existing RCP Under Driveway 20 EA $ 1,000.00 $ 20,000.00 Asphalt Pavement Removal and Replacement 1,500 SY $ 75.00 $ 112,500.00 Concrete Sidewalk Removal and Replacement 160 LF $ 170.00 $ 27,200.00 Concrete Curb and Gutter Removal and Replacement 160 LF $ 75.00 $ 12,000.00 Concrete Driveway Removal and Replacement 700 SY $ 110.00 $ 77,000.00 Asphalt Driveway Removal and Replacement 50 SY $ 90.00 $ 4,500.00 ABC stone in Driveways 2,000 LF $ 30.00 $ 60,000.00 Construction Barriers 80 LF $ 50.00 $ 4,000.00 Straw Wattles 40 EA $ 300.00 $ 12,000.00 Silt Fence 5,000 LF $ 10.00 $ 50,000.00 Silt Fence Outlet 20 EA $ 500.00 $ 10,000.00 Excelsior Matting for Erosion Control 1,500 SY $ 10.00 $ 15,000.00 Railroad Pipeline Crossing Signs 2 EA $ 1,000.00 $ 2,000.00 Fiberglass Railroad Utility Markers 2 EA $ 500.00 $ 1,000.00 Bypass Pumping and Piping 1 LS $ 25,000.00 $ 25,000.00 Select Backfill 3,000 CY $ 40.00 $ 120,000.00 Stabilization Stone - Trench 50 CY $ 100.00 $ 5,000.00 Rip Rap 60 TN $ 100.00 $ 6,000.00 Construction Entrance Pad 2 EA $ 10,000.00 $ 20,000.00 Testing Allowance 11 LS I $ 10,000.00 $ 10,000.00 VFD Pump Control and SCADA Improvements (WTP) 11 LS 1 $ 75,000.00 $ 75,000.00 Electrical Improvements 11 LS 1 $ 100,000.00 $ 100,000.00 Sub -total $ 5,524,900.00 Rivers & Associates, Inc. Page 32 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 Table 17 Proposed Project -Total Estimated Capital Costs for Project Sub -total Construction Cost Estimate ----------------------------------------------------------------------------------------------------- Contin enc 10% En ineerin Services- ------g ____--------------------------------------------------------- NPDES Permitting -- Engineering Report $ --------------------------------- $ 5,524,900.00 552,500.00 $ 40,000.00 $ 20,000.00 --------------------- Environmental Information Document $ 15,000.00 Route Topographic Survey $ 75,000.00 Design and Permitting 380,000.00 BTddin.q and Negotiation _$ $ 20,000.00 Construction Administration $ 190,000.00 Resident Inspection 12 months $ 250,000.00 Warranty Assistance $ 5,000.00 Easement Mapping $ 10,000.00 Geotechnical Services $ 7,500.00 Legal Fees $ 10,000.00 Permit Fees $ 10,000.00 Land Acquisition $ - Total $ 7,109,900.00 Table 18 Proposed Project Annual Recurring Costs Pump Station Operation and Maintenance --------------------------------------------------------------------------------------------------------------------- Pieing and Easement O eration and Maintenance $1,000.00 $5,000.00 O eratorand Support Staff LSa22ELin $1,500.00 Laboratory Costs $0.00_ Connection Fees and Subsequent User Fees $0.00 Permit Compliance Fees $0.00 Utilit Electrical Costs $16,300.00 Total Annual Expenses $23,800.00 7.0 Recommendations 7.1 General The City of Havelock completed significant backwash solids handling treatment improvements in 2018 which have eliminated previously recurring TSS violations for the treated waste effluent discharge. Although those improvements could not be expected to completely resolve Whole Effluent Toxicity failures, substantive improvements have been realized as a result of the blending of the fresh filter backwash water with the brine softener regeneration waste. The frequency of toxicity failures has been reduced from over 80% (10/12 fails prior to improvements) to approximately 25% (4/16 fails post improvements). If additional improvements will be required in order to achieve greater reliability and Rivers & Associates, Inc. Page 33 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 consistency in successfully passing the toxicity test, the recommended solution is to improve dilution by relocating the discharge to a larger surface water receiving body. In order to meet Whole Effluent Toxicity testing requirements, as well as Total Copper and Total Zinc permit limitations, it is recommended the City of Havelock consider relocating the WTP discharge from low flow McCotter Canal to the Neuse River. The goal is to increase dilution of the effluent into a regulated mixing zone; thereby, reducing the sample concentration for toxicity testing and eliminating the effluent limits for Total Copper and Total Zinc. The specific recommendation, as indicated in Paragraph 6.3 above, is to continue to treat the backwash waste stream utilizing the WTP improvements that were recently completed in 2018 while disposing of the treated effluent via intermittent pumping from a proposed 690 gpm pump station through a proposed 22,200 LF 10" diameter force main to the existing WWTP site where it will be combined with the WWTP effluent in the existing 24" outfall force main. A check valve and vault will be installed on the 24" main to prevent backflow into the WWTP Effluent Pump Station and intermingling of the effluent streams prior to individual composite sampling. Composite sampling will continue for each effluent stream at the individual WTP and WWTP sites. A pigging entry station is recommended at the WTP site with a pigging retrieval station at the WWTP site to allow periodic cleaning of the 10" force main. The combined effluent will be pumped through the existing 24" diameter force main across the MCAS Cherry Point to the existing cascade aerator where it will be discharged through the existing 2,000 LF subaqueous diffuser and 80 LF multiport diffuser into the Neuse River. 7.2 Dilution Evaluation Dilution evaluation will be required in order to determine the amount of dilution that can be achieved for the most limiting constituent. Typically for tidally influenced receiving waters, a CORMIX (Cornell Mixing Zone Expert System) dilution model is required in order to simulate various diffuser configurations to optimize dilution and dispersion within a regulatory mixing zone that occupies a small footprint within the receiving waterbody. If Dilution Modeling has previously been conducted for the WWTP discharge, that model can possibly be reviewed to extrapolate the available dilution rate. If such a model does not exist, then a CORMIX model may be required to determine the dilution available at the existing diffuser configuration and discharge location relative to that which may be required. The existing NPDES Discharge Permit for the WWTP (NC0021253) (Appendix L) includes Chronic Toxicity permit limits that require quarterly testing such that the effluent discharge at no time shall exhibit observable inhibition of reproduction or significant mortality to Mysid Shrimp at an effluent concentration of 15% at 2.25 MGD, 16% at 2.8 MGD, and 16% at 3.5 MGD. This compares to the quarterly Acute Toxicity Pass/Fail Monitoring requirement performed using Mysid Shrimp for the WTP where the effluent concentration at Rivers & Associates, Inc. Page 34 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 which there may be at no time significant acute mortality is 90%. This seems to suggest that the existing WWTP diffuser is providing at least a 5.5:1 ratio. In order to establish the most limiting constituent of concern in the WTP effluent, a Reasonable Potential Analysis (RPA) must be conducted and compared to the receiving surface water standards. RPAs have been prepared for Total Copper and Total Zinc for the Havelock WTP based on 22 effluent sample concentrations for 2021-22 (Appendix G). The RPA indicates that reasonable potential exists based on NCDEQ and EPA criteria for the concentration of Total Copper to be as high as 11.2 ug/L and for Total Zinc to be as high as 189.0 ug/L. The stream standards for a Class SB; Sw, NSW as indicated in Table 1 above are 3.1 ug/L and 81.0 ug/L, respectively. As such, for the WTP, Total Copper would appear to require the greatest dilution at 3.61:1 versus Total Zinc at 2.33:1 which might reasonably be achieved by the existing WWTP diffuser. Consideration must also be given, however, to the effluent metals concentrations from the WWTP. Currently, the WWTP does not have any assigned metals limits. Total Copper monitoring and reporting is required, however, on a quarterly basis. Monitoring for Total Zinc was removed from the previous NPDES permit based on the RPA showing no reasonable potential to violate state water quality standards. Annual Effluent Pollutant Scans are required, however, for 2021, 2022 and 2023 which include metals. An abbreviated RPA was conducted on Total Copper for the WWTP discharge based on eight data points obtained during the 2021-22 time period (Appendix G). The results do not appear beneficial as they suggest reasonable potential that Total Copper concentration could be as high as 182.4 ug/L which would require significant dilution to meet the surface water standard for the receiving water. However, eight data points is the bare minimum necessary to conduct a reasonable RPA, and there is a single very high concentration of 57 ug/L in October, 2022 that seems well outside of normal given that all other values are 5 — 10 ug/L. In order to further evaluate the alternative under consideration, effluent testing for Total Copper should be accomplished on a more frequent basis (i.e. monthly) in order to gain more data points. The magnitude of the RPA concentration is directly impacted by (1) the number of data points evaluated, and (2) the magnitude of the highest observed concentration in the data set. As such, the WWTP Total Copper RPA concentration could be inflated due to the few data points evaluated and the single very high concentration of October, 2022. More thorough evaluation of a larger dataset could produce a more believable and/or favorable result to support the use of the existing WWTP outfall and diffuser as a means of disposal for the WTP effluent. Additional meaningful information could also be obtained if, in addition to normal toxicity testing, the WTP would request quarterly Acute Toxicity Pass/Fail tests performed as a Mysid Shrimp 24 hour static test with the effluent concentration at which there may be at no time significant acute mortality equal to 16% to match that of the WWTP diffuser. This would help to confirm whether the WTP might expect to consistently pass at a significantly Rivers & Associates, Inc. Page 35 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 reduced effluent concentration as might be expected with greater dilution that could possibly be achieved by discharging to the larger water of the Neuse River. 7.2 NPDES Engineering Alternatives Analysis (EAA) Should the Dilution Evaluation indicate that the existing WWTP diffuser appears favorable to achieve sufficient dilution while minimizing adverse environmental impacts, this Discharge Alternatives Evaluation can be readily modified into the full NPDES Engineering Alternatives Analysis that meets all requirements contained within the NCDEQ DWR Engineering Alternatives Analysis Guidance Document. 7.3 NPDES Permit Application A complete NPDES Permit application package must include the NPDES Permit Application Form along with the Engineering Alternatives Evaluation and the Application Fee. Following staff review, and revision(s) if required, should the NPDES Unit find the proposed application acceptable, it will be shepherded through normal NPDES permitting processes, public advertisement, comment period, public hearing, etc. before a final permit is issued. If it is deemed acceptable to combine the WTP effluent discharge with the WWTP effluent discharge, then we anticipate that a combined NPDES discharge permit would be issued to include the individual requirements, flow sheets, limits, testing, etc. for both the WWTP and WTP. An example of such a NPDES permit is for the New Bern WWTP and WTP (NC0025348) where both treated effluent streams are combined into a single outfall and diffuser into the Neuse River (Appendix M). 7.4 Funding Funding for the planning, design, permitting and construction of the Brown Boulevard WTP Discharge Improvements project is an effort that should proceed in parallel with preparation and review of the Dilution Evaluation, EAA and NPDES Permit Application. The City of Havelock has previously secured a low interest loan through the NCDEQ Division of Water Infrastructure (DWI) State Revolving Fund (SRF) program for the WTP Backwash Solids Handling project that was completed in 2018. Since this project involves wastewater infrastructure associated with a Water Treatment Plant, the project fits criteria for funding through various programs administered by both the Wastewater Unit and Drinking Water Units of DWI. The SRF program provides 1/2 market interest rate loans with limited principal forgiveness. The maximum loan amount is $30 million (WW Unit) and $20 million (DW Unit) with a payback term of 20 years. A 2.0% closing fee applies. The DWI SRF funding process is competitive. The opportunity for the City to be funded depends on numerous factors, including the availability of funds, the number of applications Rivers & Associates, Inc. Page 36 City of Havelock Brown Boulevard WTP Discharge Alternatives Evaluation December 2022 submitted, and final scoring/ranking of the applications. Given this, it is recommended that the City submit both a Wastewater and Drinking Water application. In this manner, the City will have the best opportunity to receive funding for the project. The SRF Program has two funding cycles per year, typically in March and September. The City, working with their engineering consultant, should begin preparation of the applications and supporting documents to support a loan request for the proposed alternative. Application efforts should begin in concert with review, feedback and direction received from the NPDES Unit relative to this Discharge Alternatives Evaluation. If the City's loan application is selected for funding, the City should expect to be notified and receive a Letter of Intent to Fund (LOIF) letter from DWI approximately five months following application. 7.5 Design, Permitting and Construction Following approval and receipt of a new NPDES permit, the City should proceed with design of the pump station, effluent force main and associated appurtenances in order to secure the remaining regulatory permits to facilitate the bidding, construction and startup of the project. The following permits may be required: • USACE Section 404 Permit/401 Water Quality Certification • USACE Jurisdictional Stream Crossing • NCDEMLR Erosion & Sedimentation Control Permit • NCDEQ DWR Stormwater Permit • NCDOT Encroachment Agreement • NCDEQ DWR Authorization to Construct Rivers & Associates, Inc. Page 37 APPENDIX MA 2022 Local Water Supply Plans Havelock 2021 The Division of Water Resources (DWR) provides the data contained w ithin this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the w ater system and/or DWR. 1. System Information t;ontact Inform atio. Water System Name: Havelock Mailing Address: P.O. Drawer 368 Havelock, NC 28532 Contact Person: David Hemenw ay Phone: 252-444-6420 Distribution System Asbestos Cement Ductile Iron Polyvinyl Chloride PWSID: 04-25-015 Ow nership: Municipality Title: WTP Supervisor/ORC Cell/Mobile: 252-670-1263 Line Type Size Range (Inches) 6-12 6-8 6-12 Complete Estimated % of lines 55.00 % 10.00 % 35.00 % What are the estimated total miles of distribution system lines? 81 Miles How many feet of distribution lines w ere replaced during 2021? 60 Feet How many feet of new water mains were added during 2021? 0 Feet How many meters were replaced in 2021? 194 How old are the oldest meters in this system? 19 Year(s) How many meters for outdoor w ater use, such as irrigation, are not billed for sew er services? 37 What is this system's finished water storage capacity? 2.2000 Million Gallons Has w ater pressure been inadequate in any part of the system since last update? Line breaks that were repaired quickly should not be included. No Programs Does this system have a program to w ork or flush hydrants? Yes, Quarterly Does this system have a valve exercise program? Yes, Quarterly Does this system have a cross -connection program? Yes Does this system have a program to replace meters? Yes Does this system have a plumbing retrofit program? No Does this system have an active w ater conservation public education program? Yes Does this system have a leak detection program? Yes Water Conservation What type of rate structure is used? Increasing Block How much reclaimed water does this system use? 0.0000 MGD For how many connections? 0 Does this system have an interconnection w ith another system capable of providing w ater in an emergency? Yes 2. Water Use Information Service Area Sub-Basin(s) % of Service Population County(s) Neuse River (10-1) 100 % Craven What was the year-round population served in 2021? 14,667 Has this system acquired another system since last report? No Water Use by Type Type of Use Metered Metered Non -Metered Connections Average Use (MGD) Connections Residential 5,179 0.5870 0 Commercial 674 0.3450 0 Industrial 0 0.0000 0 Institutional 14 0.0080 0 How much w ater w as used for system processes (backw ash, line cleaning, flushing, etc.)? 0.1850 MGD Water Sales Purchaser PWSID Craven County 04-25-055 Greenfield Heights Development 04-25-141 3. Water Supply Sources Monthly Withdrawals & Purchases Average Daily Max Day Use (MGD) Use (MGD) % of Service Population 100 % Non -Metered Estimated Use (MGD) 0.0000 0.0000 0.0000 0.0000 Average Days Contract Required to Ripe Size(s) Use Daily Sold Used comply w ith w ater (Inches) Type (MGD) MGD Expiration Recurring use restrictions? 0.0000 0 0.0000 2050 Yes Yes 10 Emergency 0.0080 365 Yes Yes 6 Regular Jan 1.2670 1.3420 May Feb 1.2780 1.3090 Jun Mar 1.1840 1.3430 Jul Apr 1.1780 1.2480 Aug Ground Water Sources Name or Number Average Daily Withdrawal (MGD) MGD Days Used 3 0.5190 202 4 0.4640 205 5 0.5630 201 6A 0.6020 205 Ground Water Sources (continued) Name or Number Well Depth (Feet) Casing Depth (Feet) 3 250 4 250 5 260 6A 260 Are ground water levels monitored? Yes, Monthly Does this system have a wellhead protection program? Yes Water Purchases From Other Systems Average Daily Max Day Average Daily Max Day Use (MGD) Use (MGD) Use (MGD) Use (MGD) 1.2440 1.3620 Sep 1.2020 1.3060 1.1510 1.3390 Oct 1.2130 1.6290 1.1810 1.3140 Nov 1.1230 1.3300 1.1960 1.3520 Dec 1.1370 1.9540 Max Day Withdrawal (MGD) 12 H(MGD) our Supply CUA Reduction Year Offline Use Type 0.7200 Regular 0.7200 Regular 0.7200 Regular 0.8640 Regular Screen Depth (Feet) Well Diameter (Inches) Pump Intake Depth (Feet) Metered? Top Bottom 164 240 10 74 Yes 164 245 10 74 Yes 160 250 10 120 Yes 170 250 10 100 Yes Average Days Contract Required to pipe Size(s) Use Seller PWSID Daily Purchased Used comply with water (Inches) Type (MGD) MGD Expiration Recurring use restrictions? Craven County 04-25-055 0.0000 0 Yes Yes 10 Emergency Water Treatment Plants Plant Name Permitte�dGCapacity Is Raw Water Metered? Is Finished Water Ouput Metered? Brown Blvd. WTP 2.8000 Yes Yes Did average daily w ater production exceed 80% of approved plant capacity for five consecutive days during 2021? No If yes, w as any w ater conservation implemented? Did average daily w ater production exceed 90% of approved plant capacity for five consecutive days during 2021? No If yes, w as any w ater conservation implemented? Are peak day demands expected to exceed the w ater treatment plant capacity in the next 10 years? No 4. Wastewater Information Monthly Discharges Source Castle Hayne Aquifer Average Daily Average Daily Average Daily Discharge (MGD) Discharge (MGD) Discharge (MGD) 1.8060 May 1.2360 Sep 1.2060 2.1060 Jun 1.7360 Oct 1.1360 1.6360 Jul 1.4860 Nov 1.1160 1.3960 Aug 1.7060 Dec 1.1960 Havelock's 2021 Monthly Discharges How many sewer connections does this system have? 5,974 How many w ater service connections w ith septic systems does this system have? 52 Are there plans to build or expand w astew ater treatment facilities in the next 10 years? Yes Wastewater Permits Permitted Capacity Design Capacity Average Annual Maximum Day Discharge Permit Number (MGD) (MGD) Daily Discharge (MGD) Receiving Stream Receiving Basin (MGD) NC0021253 2.2500 4.0000 1.3750 Neuse River Neuse River (10-1) NC00781310 0.3600 0.4770 0.1060 0.3140 Mc Cotter Canal Neuse River (10-1) 5. Planning Projections 2021 2030 2040 2050 2060 2070 Year -Round Population 14,667 15,200 15,808 16,440 17,098 17,782 Seasonal Population 0 0 0 0 0 0 Residential 0.5870 0.6020 0.6170 0.6320 0.6470 0.6630 Commercial 0.3450 0.3530 0.3610 0.3700 0.3790 0.3880 Industrial 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 Institutional 0.0080 0.0082 0.0084 0.0086 0.0089 0.0092 System Process 0.1850 0.1890 0.1930 0.1970 0.2010 0.2060 Unaccounted-for Demand v/s Percent of Supply 0.0630 0.1000 0.1000 0.1000 0.1000 0.1000 Surface Water Supply Ground Water Supply Purchases Future Supplies Total Available Supply (MGD) Service Area Demand Sales Future Sales Total Demand (MGD) Demand as Percent of Supply 2021 2030 2040 2050 2060 2070 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 2.8000 2.8000 2.8000 2.8000 2.8000 2.8000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 2.8000 2.8000 2.8000 2.8000 2.8000 2.8000 1.1880 1.2522 1.2794 1.3076 1.3359 1.3662 0.0080 0.0080 0.0080 0.0080 0.0080 0.0080 0.0000 0.0000 0.0000 0.0000 0.0000 1.1960 1.2602 1.2874 1.3156 1.3439 1.3742 43% 45% 46% 47% 48% 49% The purpose of the above chart is to show a general indication of how the long-term per capita w ater demand changes over time. The per capita w ater demand may actually be different than indicated due to seasonal populations and the accuracy of data submitted. Water systems that have calculated long-term per capita water demand based on a methodology that produces different results may submit their information in the notes field. Your long-term w ater demand is 40 gallons per capita per day. What demand management practices do you plan to implement to reduce the per capita w ater demand (i.e conduct regular water audits, implement a plumbing retrofit program, employ practices such as rainwater harvesting or reclaimed water)? If these practices are covered elsewhere in your plan, indicate where the practices are discussed here. No Changes Are there other demand management practices you w ill implement to reduce your future supply needs? Water Conversation Practice and education. What supplies other than the ones listed in future supplies are being considered to meet your future supply needs? How does the water system intend to implement the demand management and supply planning components above? City of Havelock Water & Wastewater Facilities Master Plan, City of Havelock Treatment Facility Improvements and Feasibility Study, and the City of Havelock Water System Master Plan. Additional Inform atio�. Has this system participated in regional w ater supply or w ater use planning? No What major water supply reports or studies were used for planning? City of Havelock Water Treatment Facility Improvements & Feasibility Study and the City of Havelock Water System Master Plan. Please describe any other needs or issues regarding your water supply sources, any water system deficiencies or needed improvements (storage, treatment, etc.) or your ability to meet present and future water needs. Include both quantity and quality considerations, as well as financial, technical, managerial, permitting, and compliance issues: The Division of Water Resources (DWR) provides the data contained w ithin this Local Water Supply Plan (LWSP) as a courtesy and service to our customers. DWR staff does not field verify data. Neither DWR, nor any other party involved in the preparation of this LWSP attests that the data is completely free of errors and omissions. Furthermore, data users are cautioned that LWSPs labeled PROVISIONAL have yet to be reviewed by DWR staff. Subsequent review may result in significant revision. Questions regarding the accuracy or limitations of usage of this data should be directed to the w ater system and/or DWR. APPENDIX 0 WTP NPDES Discharge Permit NORTH CAROLINA Environmental Quality ROY COOPER Gm t- m.v MICFIAEL S. REGAN s�'t ff?C1r'r LINDA CULPEPPER Inren"1r Pirectcx October 12, 2018 Mr. Frank P. Bottorff, City Manager City of Havelock PO Box 368 Havelock, NC 28532-0368 UMEZU' V D OCT 16 2018 Subject: NPDES PERMIT ISSUANCE NPDES Permit NCO078131 Brown Boulevard WTP Grade I Physical Chemical WPCS Craven County Dear Mr. Bottorff: Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached final NPDES discharge permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). The final permit includes the following significant changes from the existing permit: 1. Language has been updated in Section A. (1) and Section A. (5) to require electronic submission of effluent data. Federal regulations require electronic submittal of all discharge monitoring reports (DMRs). 2. Regulatory citations have been added to the permit. 3. Facility grade has been added to the permit. 4. Outfall map has been updated. 5. The facility address has been updated on the cover sheet and Supplement to Permit Cover Sheet per the renewal application. 6. The components list has been updated on the Supplement to Permit Cover Sheet per the renewal application. 7. Language has been updated on the Supplement to Permit Cover Sheet. .. .DEQ Mpr�swl N l.mY.+I+RM O.e'� North Carolina Department of Environmental Quality j Division of Water Resources 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh. North Carolina 27699 1617 91.9, 707.9000 Mr. Frank Bottorff NC0078131 Issued Permit 8. Instream monitoring for pH has been changed to monthly in Section A. (1) per the current water treatment plant guidance. 9. Instream sampling for salinity and conductivity has been changed to grab sampling in Section A. (1). 10. Limits have been added for Total Copper and Total Zinc in Section A. (1) based on a reasonable potentiar fo exceed water quality standards. 11. Former footnote #3 in Section A. (1) concerning a compliance schedule for flow composite sampling has been removed as the deadline has passed. 12. The footnote regarding total residual chlorine in Section A. (1) has been updated. 13. Language has been updated in Section A. (2). 14. A discharge alternatives analysis has been added as Section A. (3) due to a history of failed toxicity tests. 15. A compliance schedule has been added as Section A. (4) for Total Copper and Total Zinc. Please note that the practical quantitation limits (PQLs) for Total Copper is 2 µg/L (per the Inorganic Chemistry Branch of the Division of Water Resources Water Sciences Section) and monitoring data should be reportable down to these levels. Per North Carolina 15A NCAC 02B Water Quality Standards for Surface Waters, the current limits for class SC waters for copper are 3.7 µg/L (acute) and 5.8 µg/L (chronic). Limits for water treatment plants are determined by evaluating DMR data submitted to the Division, along with a dilution factor (if applicable) and the maximum monthly average flow reported in the previous 3 years at the time the review is completed. Whole Effluent Toxicity test results submitted during the past three years have demonstrated that the Water Treatment Plant's effluent is showing potential for causing aquatic toxicity in the receiving stream. As a result, the City of Havelock shall perform a Discharge Alternatives Evaluation as described in Section A. (3) of this permit. This evaluation is being requested to determine whether there are any economical and technologically feasible alternatives available to the City of Havelock to comply with all NC Water Quality Standards. The permittee will be given approximately one permit cycle to evaluate and document possible treatment/discharge alternatives to eliminate aquatic toxicity. The evaluation shall be submitted with the permittee's next permit renewal application and will be carefully reviewed by the Division and the results will be used in the development of a compliance schedule or possible variance request for the City of Havelock. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this permit shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain any other Federal, State, or Local governmental permit that may be required. Mr. Frank Bottorff NC0078131 Issued Permit If you have any questions or need additional information, please do not hesitate to contact Brianna Young of my staff at (919) 707-3619. Sin y, C Linda Culpepper Interim Director, Division of Water Resources cc: NPDES Files Central files Washington Regional Office WSS/Aquatic Toxicology Branch Permit NCO078131 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM N( PDES) In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, the City of Havelock is hereby authorized to discharge treated wastewater from a facility known as Brown Boulevard Water Treatment Plant 527 Brown Boulevard Havelock Craven County to receiving waters designated as McCotter Canal, a tributary to Shop Branch, within the Neuse River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. The permit shall become effective November 1, 2018. This permit and the authorization to discharge shall expire at midnight on June 30, 2023. Signed this day October 12, 2018. i� Li� a Culpepper Interim Director, Division of Water Resources By Authority of the Environmental Management Commission Page 1 of 9 Permit NCO078131 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked, and as of this issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions described herein. The City of Havelock is hereby authorized to: Continue to operate an ion exchange and greensand filter water treatment plant with discharge of wastewaters from Greensand and Ion exchange units. This water treatment plant currently has a design potable flowrate of 2.8 MGD and a maximum, monthly average wastewater discharge of 0.123 MGD. This facility is located at the Brown Boulevard WTP, 527 Brown Boulevard in Havelock in Craven County. Water and wastewater treatment consists of • Four (4) water supply wells • Two (2) aeration basins • Oxidation • Six (6) greensand/anthracite filters • Four (4) ion -exchange water -softeners • 1.0 MGD storage tank • 417,000 gallon clarifier • 60,000 gallon settling basin • 12" discharge line • Dechlorination using liquid calcium thiosulfate • Six (6) sludge drying beds • Chemical usage consists of: o Sodium permanganate o Zinc orthophosphate o Sodium hypochlorite o Ammonium sulfate 2. Discharge from said treatment works via Outfall 001 at a location specified on the attached map, into McCotter Canal, a tributary to Shop Branch [Stream Segment: 27-115-3], a waterbody currently classified SC; Sw, NSW within subbasin 03-04-10 [HUC: 0302020405] of the Neuse River Basin. Page 2 of 9 Permit NCO078131 PART I A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [I 5A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade I Physical Chemical WPCS [I 5A NCAC 08G .0302] During the period beginning on the effective date of this permit and lasting until expiration, the Permittee is authorized to discharge filter backwash via Outfall 001. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS Parameter Codes LIMITATIONS MONITORING REQUIREMENTS Monthly Average Daily Maximum Measurement Frequency Sample Type Sample Location z Flow (MGD) 50050 Continuous Recording E Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L 2/Month Composite E Total Residual Chlorine 3 50060 13 pg/L 2/Month Grab E pH 00400 Not < 6.5 or > 8.5 standard units 2/Month Grab E pH (s.u.) 00400 Monthly Grab U & D 1 Salinity (ppth) 00480 Monthly Composite E Salinity (ppth) 00480 Monthly Grab U & D 1 Conductivity (pmhos/cm) 00094 Monthly Composite E Conductivity (pmhos/cm) 00094 Monthly Grab U & D Dissolved Oxygen (mg/L) 00300 Monthly Grab E U&D, Total Dissolved Solids (mg/L) 70295 Monthly Composite E Turbidity (NTU) 00070 Monthly Grab E Total Copper 4 01042 3.70 pg/L 5.80 pg/L Monthly Composite E Total Chloride (mg/L) 00940 Monthly Composite E Total Iron (pg/L) 01045 Monthly Composite E Total Manganese (Ng/L) 01055 Monthly Composite E Total Zinc 4 01092 85.6 pg/L 95.1 pg/L Monthly Composite E Ammonia Nitrogen (mg/L) C0610 Monthly Composite E TKN (mg/L) 00625 Monitor & Report Quarterly Composite E NO3-N + NO2-N (mg/L) 00630 Monitor & Report Quarterly Composite E Total Nitrogen 6 (mg/L) CO600 Monitor & Report Quarterly Composite E Total Phosphorus (mg/L) C0665 Monitor & Report Quarterly Composite E Acute WET Testing 6 TGE3E Monitor & Report Quarterly Composite E Footnotes 1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR application system [see Section A. (5)]. 2. E = Effluent; U = upstream at least 50 feet from the outfall; D = downstream at least 100 feet from the outfall. 3. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L. Page 3 of 9 Permit NCO078131 4. See Section A. (4) for compliance schedule. 5. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 6. Whole Effluent Toxicity (WET) testing using Mysidopsis Bahia shall be performed as 24-day pass/fail test at 90% effluent concentration, during January, April, July and October [See Section A. (2)]. 7. If no stream flow is available to sample, indicate "no stream flow" on the DMR. Samples shall be taken at the outfall but prior to mixing with the receiving waters. There shall be no discharge of floating solids or foam in other than trace amounts. Page 4 of 9 Permit NCO078131 A. (2) ACUTE TOXICITY PASS/FAIL MONITORING ONLY (QUARTERLY) [I 5A NCAC 02B .0500 et seq.] The permittee shall conduct acute toxicity tests on a quarterlybasis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single Effluent Concentration" (Revised -December 2010 or subsequent versions). The monitoring shall be performed as a Mysid Shrimp (Mysidopsis bahia) 24 hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document).. The tests will be performed during the months of January, April, July, and October. These months signify the first month of each three month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGE3E. Additionally, DWR Form AT-2 (original) is to be sent to the following address: Attention: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, NC 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited above. Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately. Upon submission of a valid test, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re- opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Page 5 of 9 Permit NCO078131 A. (3) DISCHARGE ALTERNATIVES EVALUATION The Permittee shall assess potential alternatives to eliminate Whole Effluent Toxicity (WET) test failures. This evaluation shall assess the feasibility of all the following alternatives. 1. Connect discharge to a WWTP: Determine whether the wastewater can be discharged to a wastewater treatment plant. Approval or disapproval from the plant operator should be acquired. 2.Obtain a Non -discharge permit: Eliminate the surface water discharge by obtaining a non -discharge permit for spray irrigation, infiltration, or subsurface disposal (on -site drainfield, infiltration gallery, injection wells). 3. Install Wastewater Treatment: Install improved wastewater treatment to enable the facility effluent to consistently pass the WET test. If this is not technically feasible or cost prohibitive, please explain and provide estimated costs. 4. Use Alternative Water Treatment Source: Obtain drinking water from another source (nearest County, City, or Town or other wells) so the discharge or toxicity problem is eliminated. 5. Use Alternative Water Treatment Method: Install alternative and/or innovative water treatment methods or operational improvements that do not produce toxic wastewaters. For example, install a recycle iron/manganese filtration system with no discharge or combine discharge with WWTP or cooling water effluents. 6. Discharge to a Larger waterbody/Perform a dilution model: Relocate the facility's discharge to a larger receiving waterbody to eliminate or reduce toxic impacts to the receiving waterbody given the increased dilution. If applicable, perform a dilution model to receive allowance for stream dilution in WET test. 7. Combination of Alternatives: Employ any combination of the alternatives listed above that would result in eliminating or decreasing toxicity until a more feasible solution becomes available. The evaluation shall include a present value of costs analysis for all technologically feasible options as outlined in the Division's "Engineering Alternatives Analysis Guidance Document." This Document can be found at: littp://portal.ncdenr.or web/wq/swp/t)shipdcs/permits. This evaluation is being requested to determine whether there are any economical and technologically feasible alternatives available to the Permittee to address aquatic toxicity in the plant effluent. Based upon the evaluation, please identify viable alternatives and present an implementation schedule and project timeline for the preferred alternative. The Permittee shall submit the Discharge Alternatives Evaluation to the Division along with the submission of their next permit renewal application (due 6 months prior to permit expiration) to: NC DENR / Division of Water Resources / Water Quality Permitting NPDES, Wastewater Branch 1617 Mail Service Center, Raleigh, NC 27699-1617 Page 6 of 9 Permit NCO078131 A. (4) SCHEDULE OF COMPLIANCE (OUTFALL 001) [G.S. 143-215.1(b)] 1. Within one year from the effective date of the permit the Permittee shall submit to the Division of Water Resources a Corrective Action Plan summarizing the actions or strategy to be taken to achieve compliance with the Total Copper and Total Zinc limits at Outfall 001. Specific dates for completion or implementation of each action shall be included. 2. Within two years from the effective date of the permit submit a report to the Division summarizing actions taken in accordance with the Corrective Action Plan. 3. Within three years from the effective date of the permit submit a report to the Division summarizing actions taken in accordance with the Corrective Action Plan. 4. Within four years from the effective date of the permit submit a report to the Division summarizing actions taken in accordance with the Corrective Action Plan. 5. Achieve compliance with Total Copper and Total Zinc limits specified in Section A. (1) within five years of the permit effective date. Upon approval of the Corrective Action Plan by the Division, the report and actions become an enforceable part of this permit. Any modifications to the schedule shall be requested to the Division at least ninety (90) days before the deadline. Modifications to the schedule in excess of four months will be subject to public notice. A. (5) ELECTRONIC REPORTING OF MONITORING REPORTS [NCGS 143-215.1 (b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This special condition supplements or supersedes the following sections within Part II of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reportiny- Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)l The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: Page 7 of 9 Permit NC0078131 NC DEQ / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See "How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Starting on December 21, 2020, the permittee must electronically report the following compliance monitoring data and reports, when applicable: • Sewer Overflow/Bypass Event Reports; • Pretreatment Program Annual Reports; and • Clean Water Act (CWA) Section 316(b) Annual Reports. The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: https://www.federalre istct'.gov/documents/2015/10/22/2015-24954/national-pollutant- discllarge-elimination-systemnpdes-electronic-reporting-rule. Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Page 8 of 9 Permit NC0078131 Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http://deg.nc.gov/about/divisions/water-resources/edmr 4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1 All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (I 1.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (I 1.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: littp://deq.nc.gov/about.divisions/water-resources/edinr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. " 5. Records Retention [Supplements Section D. (6.)l The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least 3 years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41 ]. Page 9 of 9 Z147- fg4 t, 4e-wl W, 'GM - N'T'M i2iffl _j NPDES Permit Standard Conditions Page 1 of 18 PART 11 STANDARD CONDITIONS FOR NPDES PERMITS Section A. Definitions 2/Month Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be representative of the wastewater discharged during the sample period. 3/Week Samples are collected three times per week on three separate calendar days. These samples shall be representative of the wastewater discharged during the sample period. Act or "the Act" The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et. seq. Annual Average The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal coliform, the geometric mean of such discharges. Arithmetic Mean The summation of the individual values divided by the number of individual values. Bypass The known diversion of waste streams from any portion of a treatment facility including the collection system, which is not a designed or established or operating mode for the facility. Calendar Day The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. Calendar Week The period from Sunday through the following Saturday. Calendar Quarter One of the following distinct periods: January through March, April through June, July through September, and October through December. Composite Sample A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite samples may be obtained by the following methods: (1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow. (2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period of discharge and combined proportional to the rate of flow measured at the time of individual sample collection, or (3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at the treatment system, or Version 1110912011.1 NPDES Permit Standard Conditions Page 2 of 18 (4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a constant time interval. Use of this method requires prior approval by the Director. This method may only be used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply: ➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters ➢ Influent samples shall not be collected more than once per hour. ➢ Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab samples at intervals of no greater than 20 minutes apart during any 24-hour period. ➢ Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling period. Continuous flow measurement Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance activities on the flow device. Daily Discharge The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the "daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also "Composite Sample," above.) Daily Maximum The highest "daily discharge" during the calendar month. Daily Sa!npling Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that requirement will be so noted on the Effluent Limitations and Monitoring Page(s). DWR or "the Division" The Division of Water Resources, Department of Environment and Natural Resources. Effluent Wastewater discharged following all treatment processes from a water pollution control facility or other point source whether treated or untreated. EMC The North Carolina Environmental Management Commission EPA The United States Environmental Protection Agency Facility Closure Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this permit to be rescinded. Geometric Mean The Nth root of the product of the individual values where N = the number of individual values. For purposes of calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1. Grab Sample Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream samples). Version 1110912011.1 NPDES Permit Standard Conditions Page 3 of 18 Hazardous Substance Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA. Instantaneous flow measurement The flow measured during the minimum time required for the flow measuring device or method to produce a result in that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab samples required for the same sampling period so that together the samples and flow are representative of the discharge during that sampling period. Monthly Average (concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal coliform or other bacterial parameters or indicators, the geometric mean of such discharges. Permit Issuing Authority The Director of the Division of Water Resources. Quarterly Average (concentration limit) The arithmetic mean of all samples taken over a calendar quarter. Severe property damage Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage excludes economic loss caused by delays in production. Toxic Pollutant: Any pollutant listed as toxic under Section 307(a)(1) of the CWA. Upset An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. Weekly Average (concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal coliform or other bacterial parameters or indicators, the geometric mean of such discharges. Section B. General Conditions 1. Duty to Comply The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application [40 CFR 122.41 ]. a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section 405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the requirement. b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any such sections in a permit issued under section 402, or any requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR 122.41(a)(2)] c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or 402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or Version 1110912011.1 NPDES Permit Standard Conditions Page 4 of 18 imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)] d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both. [33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)] e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and who knows at that time that he thereby places another person in imminent danger of death or serious bodily injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than 15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to $2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)] f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North Carolina General Statutes § 143-215.6A] g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302, 306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of this Act. Administrative penalties for Class 1 violations are not to exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed $37,500. Penalties for Class Il violations are not to exceed $16,000 per day for each day during which the violation continues, with the maximum amount of any Class 11 penalty not to exceed $177,500. [33 USC 1319(g)(2) and 40 CFR 122.41(a)(3)] 2. Duty to Mitigate The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40 CFR 122.41(d)]. Civil and Criminal Liability Except as provided in permit conditions on "Bypassing" (Part 11.C.4), "Upsets" (Part II.C.5) and "Power Failures" (Part II.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 4. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143- 215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 5. Property Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)]. 6. Onshore or Offshore Construction This permit does not authorize or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters. Version 1110912011.1 NPDES Permit Standard Conditions Page 5 of 18 7. Severability The provisions of this permit are severable. If any provision of this permit, or the application of any provision of this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the remainder of this permit, shall not be affected thereby [NCGS 15013-23]. 8. Duty to Provide Information The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)]. 9. Duty to Reapply If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the Permittee must apply for and obtain a new permit [40 CFR 122.41(b)]. 10. Expiration of Permit The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a later date has been granted by the Director. (The Director shall not grant permission for applications to be submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq. 11. Signatory Requirements All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40 CFR 122.41(k)]. a. All permit applications shall be signed as follows: (1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures . (2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or (3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official [40 CFR 122.22]. b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be signed by a person described in paragraph a. above or by a duly authorized representative of that person. A person is a duly authorized representative only if: (1) The authorization is made in writing by a person described above; (2) The authorization specified either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or well field, superintendent, a position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position.); and (3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22] Version 1110912011.1 NPDES Permit Standard Conditions Page 6 of 18 c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or together with any reports, information, or applications to be signed by an authorized representative [40 CFR 122.221 d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: 7 certijy, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. 1 am aware that there are .significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. " 12. Permit Actions This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)]. 13. Permit Modification, Revocation and Reissuance, or Termination The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al. 14. Annual Administering and Compliance Monitoring Fee Requirements The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2) may cause this Division to initiate action to revoke the permit. Section C. Operation and Maintenance of Pollution Controls 1. Certified Operator Owners of classified water pollution control systems must designate operators, certified by the Water Pollution Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the system, and, for each classification must [T15A NCAC 08G .0201 ]: a. designate one Operator In Responsible Charge (ORC) who possesses a valid certificate of the type and grade at least equivalent to the type and grade of the system; b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid certificate of the type of the system and no more than one grade less than the grade of the system, with the exception of no backup operator in responsible charge is required for systems whose minimum visitation requirements are twice per year; and c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission (or to the local health department for owners of subsurface systems) countersigned by the designated certified operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible Charge (Back-up ORC): (1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or (2) within 120 calendar days following: ➢ receiving notification of a change in the classification of the system requiring the designation of a new Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC) of the proper type and grade; or ➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in Responsible Charge (Back-up ORC). Version 1110912011.1 NPDES Permit Standard Conditions Page 7 of 18 (3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating at least one of the responsibilities. The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must: ➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment facility must be visited at least weekly ➢ Comply with all other conditions of 15A NCAC 08G .0204. The ORC of each Class 11, 111 and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must: ➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment facility must be visited at least five days per week, excluding holidays ➢ Properly manage and document daily operation and maintenance of the facility ➢ Comply with all other conditions of 15A NCAC 08G .0204. 2. Proper Operation and Maintenance The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)]. NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a member of the Permittee's staff. 3. Need to Halt or Reduce not a Defense It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)]. 4. Bypassing of Treatment Facilities a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)] The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions of Paragraphs b. and c. of this section. b. Notice [40 CFR 122.41(m)(3)] (1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice, if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality and effect of the bypass. (2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part II.E.6. (24-hour notice). c. Prohibition of Bypass (1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for bypass, unless: (A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage; (B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance; and (C) The Permittee submitted notices as required under Paragraph b. of this section. (2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for a bypass as provided in any current or future system -wide collection system permit associated with the treatment facility. Version 1110912011.1 NPDES Permit Standard Conditions Page 8 of 18 (3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c. (1) of this section. 5. Upsets a. Effect of an upset [40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought for noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of this condition are met. No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review. b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant evidence that: (1) An upset occurred and that the Permittee can identify the cause(s) of the upset; (2) The Permittee facility was at the time being properly operated; and (3) The Permittee submitted notice of the upset as required in Part I1.E.6.(b) of this permit. (4) The Permittee complied with any remedial measures required under Part 11.B.2. of this permit. c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has the burden of proof in any enforcement proceeding. 6. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant from such materials from entering waters of the State or navigable waters of the United States except as permitted by the Commission. The Permittee shall comply with all applicable state and Federal regulations governing the disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal practices. 7. Power Failures The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources, standby generators or retention of inadequately treated effluent. Section D. Monitorinp, and Records Representative Sampling Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit Issuing Authority [40 CFR 122.410)]. 2. Reporting Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a monthly Discharge Monitoring Report (DMR) Form (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director, postmarked no later than the last calendar day of the month following the completed reporting period. The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of these, and all other reports required herein, shall be submitted to the following address: Version 1110912011.1 NPDES Permit Standard Conditions Page 9 of 18 NC DENR / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 3. Flow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. The Director shall approve the flow measurement device and monitoring location prior to installation. Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of this permit and based on the manufacturer's pump curves shall not be subject to this requirement. 4. Test Procedures Laboratories used for sample analysis must be certified by the Division. Permittees should contact the Division's Laboratory Certification Section (919 733-3908 or http://portal.ncdenr.org/web/wq/lab/cert) for information regarding laboratory certifications. Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field parameter laboratory certifications. Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS 143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section 304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been specified in this permit [40 CFR 122.41 ]. To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most sensitive (method with the lowest possible detection and reporting level) approved method must be used. Penalties for Tampering The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this paragraph, punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years, or both [40 CFR 122.41 ]. 6. Records Retention Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR 503), the Permittne shall retain records of all monitoring information, including: ➢ all calibration and maintenance records ➢ all original strip chart recordings for continuous monitoring instrumentation ➢ copies of all reports required by this permit ➢ copies of all data used to complete the application for this permit These records or copies shall be maintained for a period of at least 3 years from the date of the sample, measurement, report or application. This period may be extended by request of the Director at any time [40 CFR 122.41]. Version 1110912011.1 NPDES Permit Standard Conditions Page 10 of 18 7. Recording Results For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the following information [40 CFR 122.41]: a. The date, exact place, and time of sampling or measurements; b. The individual(s) who performed the sampling or measurements; c. The date(s) analyses were performed; d. The individual(s) who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. 8. Inspection and Entry The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as a representative of the Director), upon the presentation of credentials and other documents as may be required by law, to; a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this permit; b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit; c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this permit; and d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise authorized by the CWA, any substances or parameters at any location [40 CFR 122.41(i)]. Section E Reporting Requirements 1. Change in Discharge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. 2. Planned Changes The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility [40 CFR 122.41(1)]. Notice is required only when: a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR 122.29(b); or b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to notification requirements under 40 CFR 122.42(a)(1); or c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and such alteration, addition or change may justify the application of permit conditions that are different from or absent in the existing permit, including notification of additional use or disposal sites not reported during the permit application process or not reported pursuant to an approved land application plan. 3. Anticipated Noncompliance The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)]. 4. Transfers This permit is not transferable to any person without prior written notice to and approval from the Director in accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in particular NCGS 143-215. 1 (b)(4)b.2., and may require modification or revocation and reissuance of the permit, or a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary under the CWA [40 CFR 122.41(1)(3), 122.61] or state statute. Version 1110912011.1 NPDES Permit Standard Conditions Page 11 of 18 5. Monitoring Reports Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)]. a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms provided by the Director for reporting results of monitoring of sludge use or disposal practices. b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate instrument governing the discharge, the results of such monitoring shall be included in the calculation and reporting of the data submitted on the DMR. 6. Twenty-four Hour Reporting a. The Pennittee shall report to the Director or the appropriate Regional Office any noncompliance that potentially threatens public health or the environment. Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40 CFR 122.41(1)(6)]. b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral report has been received within 24 hours. c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response personnel at (800) 662-7956, (800) 858-0368 or (919) 733-3300. 7. Other Noncompliance The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the time monitoring reports are submitted. The reports shall contain the information listed in Part 11.E.6. of this permit [40 CFR 122.41(1)(7)]. 8. Other Information Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or information [40 CFR 122.41(1)(8)]. 9. Noncompliance Notification The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report within 5 days following first knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit. 10. Availability of Reports Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143- 215.1(b)(2) or in Section 309 of the Federal Act. Version 1110912011.1 NPDES Permit Standard Conditions Page 12 of 18 11. Penalties for Falsification of Reports The CWA provides that any person who knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be maintained under this permit, including monitoring reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than $25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41 ]. 12. Annual Performance Reports Permittees who own or operate facilities that primarily collect or treat municipal or domestic wastewater and have an average annual flow greater than 200,000 gallons per day shall provide an annual report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1C). The report shall summarize the performance of the collection or treatment system, as well as the extent to which the facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which annual period is used for evaluation. The report shall be sent to: NC DENR / Division of Water Resources / Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Version 1110912011.1 NPDES Permit Standard Conditions Page 13 of 18 PART III OTHER REQUIREMENTS Section A. Construction a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements under Item b. of this Section. b. In accordance with NCGS 143-215.1(a5) [SL 2011-394], no permit shall be required to enter into a contract for the construction, installation, or alteration of any treatment work or disposal system or to construct, install, or alter any treatment works or disposal system within the State when the system's or work's principle function is to conduct, treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the discharge may be modified if required by federal regulation. c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been submitted by the Permittee and approved by the Division. Section B. Groundwater Monitoring The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to determine the compliance of this NPDES permitted facility with the current groundwater standards. Section C. Changes in Discharges of Toxic Substances The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42): a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (1) One hundred micrograms per liter (100 µg/L); (2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter (500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for antimony; (3) Five times the maximum concentration value reported for that pollutant in the permit application. b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (1) Five hundred micrograms per liter (500 µg/L); (2) One milligram per liter (1 mg/L) for antimony; (3) Ten times the maximum concentration value reported for that pollutant in the permit application. Section D. Facility Closure Requirements The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered by this permit. The Division may require specific measures during deactivation of the system to prevent adverse impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the permitted facility. Version 1110912011.1 NPDES Permit Standard Conditions Page 14 of 18 PART IV SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES Section A. Definitions In addition to the definitions in Part II of this permit, the following definitions apply to municipal facilities: Indirect Discharge or Industrial User Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section 307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and 0) and 15A NCAC 02H .0903(b)(11)] Interference Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in compliance with specified applicable State and Federal statutes, regulations, or permits. [I 5A NCAC 02H. .0903(b)(14)] Pass Through A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge permit. [I5A NCAC 02H .0903(b)(23)] Publicly Owned Treatment Works (POTW) A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization. This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T .0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of POTW may be referred to as a "satellite POTW organization." [15A NCAC 02H .0903(b)(26)] "Significant Industrial User" or "SIU" An Industrial User that discharges wastewater into a publicly owned treatment works and that [15A NCAC 02H .0903(b)(33)]: 1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewaters); or 2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS and ammonia; or 3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405471; or 4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options; 5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a Significant Industrial User (SIU); or 6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a non -significant categorical Industrial User. Section B. Publicly Owned Treatment Works (POTWs) Version 1110912011.1 NPDES Permit Standard Conditions Page 15 of 18 All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]: 1. Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants; and 2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as influent to that POTW at the time of issuance of the permit. 3. For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of effluent introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or quality of effluent to be discharged from the POTW. Section C. Municipal Control of Pollutants from Industrial Users. 1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent limitations for any or all of such other pollutants in accordance with best practicable technology or water quality standards. 2. Prohibited Discharges a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the introduction of pollutants or discharges into the waste treatment system or waste collection system which cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40 CFR 403.5(a)(1)] b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]: (1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR 261.21; (2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower than 5.0, unless the works is specifically designed to accommodate such discharges; (3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in Interference; (4) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate and/or pollutant concentration which will cause Interference with the POTW; (5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F) unless the Division, upon request of the POTW, approves alternate temperature limits; (6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause Interference or Pass Through; (7) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; or (8) Any trucked or hauled pollutants, except at discharge points designated by the POTW. c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or the operation of the POTW. The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office. Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission shall contain a description of the discharge; the investigation into possible sources; the period of the discharge, including exact dates and times; if the discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance, Version 1110912011.1 NPDES Permit Standard Conditions Page 16 of 18 With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding some or all of the industries discharging to the municipal system. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as required under section D below as well as 15A NCAC 02H .0907(a) and (b). [40 CFR 122.440)(2)] This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the approved State pretreatment program, as appropriate. Section D. Pretreatment Programs Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403, North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment program submittal are an enforceable part of this permit. [40 CFR 122.440)(2)] The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40 CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained in its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is not limited to the implementation of the following conditions and requirements. Terms not defined in Part II or Part IV of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3. 1. Sewer Use Ordinance (SUO) The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [I 5A NCAC 02H .0903(b)(32), .0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)] 2. Industrial Waste Survey OWS) The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.440)(1)], including identification of all Industrial Users that may have an impact on the POTW and the character and amount of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users meeting the definition of S1U. Where the Permittee accepts wastewater from one or more satellite POTWs, the IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as required by the Division. The IWS submission shall include a summary of any investigations conducted under paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(f)(2) and 403.9] 3. Monitoring Plan The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts II.D and II.E.5.). [15A NCAC 02H .0903(b)(16), .0906(b)(3) and .0905] 4. Hcadworks Analysis (HWA) and Local Limits The Permittee shall obtain Division approval of a HWA at least once every five years, and as required by the Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an updated HWA or documentation of why one is not needed) [40 CFR 122.44]. The Permittee shall develop, in accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are Version 11/09/2011.1 NPDES Permit Standard Conditions Page 17 of 18 enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and .0906(b)(4)] Industrial User Pretreatment Permits (IUP) & Allocation Tables In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works. These permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special conditions, and compliance schedules as necessary for the installation of treatment and control technologies to assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the HWA and the limits from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii); NCGS 143-215.67(a)] 6. Authorization to Construct (AtQ The Permittee shall ensure that an Authorization to Construct permit (AtQ is issued to all applicable Industrial Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all Industrial User Pretreatment Permit (IUP) limitations. [15A NCAC 02H .0906(b)(7) and .0905; NCGS 143- 215.1(a)(8)] 7. POTW Inspection & Monitoring of their IUs The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division approved pretreatment program in order to determine, independent of information supplied by Industrial Users, compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The Permittee must: a. Inspect all Significant Industrial Users (S1Us) at least once per calendar year; b. Sample all Significant Industrial Users (SIUs) at least once per calendar year for all SIU permit -limited parameters including flow except as allowed under 15A NCAC .0908(e); and c. At least once per year, document an evaluation of any non -significant categorical Industrial User for compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non- significant. 8. lU Self Monitoringand n�porting The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit, or in 15A NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR 122.440)(2) and 40 CFR 403.12] Enforcement Response Plan (ERP) The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations, and other pretreatment requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response Plan (ERP) approved by the Division. [15A NCAC 02H .0903(b)(7), .0906(b)(8) and .0905; 40 CFR 403.8(f)(5)] 10. Pretreatment Annual Reports (PAR) The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment requirements and other pretreatment implementation issues. For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report (PAR) describing its pretreatment activities over the previous calendar year to the Division at the following address: Version 1110912011.1 NPDES Permit Standard Conditions Page 18 of 1.8 NC DENR / Division of Water Resources / Water Quality Permitting Section Pretreatment, Emergency Response, and Collection Systems (PERCS) Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 These reports shall be submitted by March 1 of each year and shall contain the following: a. Narrative A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non- compliance and to ensure compliance with pretreatment requirements; b. Pretreatment Program Summary (PPS) A pretreatment program summary (PPS) on forms or in a format provided by the Division; c. Significant Non -Compliance Report (SNCR) A list of Industrial Users (lUs) in significant noncompliance (SNC) with pretreatment requirements, and the nature of the violations on forms or in a format provided by the Division; d. Industrial Data Summary Forms (IDSF) Monitoring data from samples collected by both the POTW and the Significant Industrial Users (SIUs). These analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format provided by the Division; e. Other Information Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of lUs in SNC, a summary of data or other information related to significant noncompliance determinations for lUs that are not considered SIUs, and any other information, upon request, which in the opinion of the Director is needed to determine compliance with the pretreatment implementation requirements of this permit; 11. Public Notice The Permittee shall publish annually a list of Industrial Users (lUs) that were in significant noncompliance (SNC) as defined in the Permittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements and standards during the previous twelve month period. This list shall be published within four months of the applicable twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(b)(5) and .0905 and 40 CFR 403.8(f)(2)(viii)] 12. Record Keeping The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with support information including general records, water quality records, and records of industrial impact on the POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [15A NCAC 02H .0908(f); 40 CFR 403.12(o)] 13. Pretreatment Program Resources The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved pretreatment program. and retain a written description of those current levels of inspection. [15A NCAC 02H .0906(b)(9) and (10) and .0905; 40 CFR 403.8(f)(3), 403.9(b)(3)] 14. Modification to Pretreatment Programs Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907. Version 1110912011.1 APPENDIX C Brown Boulevard WTP Site Location �-, At n .t + 1p �L o - 41. .v i 1 l 1 t 5 5 i. APPENDIX IC Surface Water Discharge Alternatives APPENDIX E WTP Daily Monitoring Reports Summary Brown Boulevard WTP Daily Monitoring Reports Summary (2021 - 2022) Finished Waste Effluent Flow Raw Water Water Min Day Max Day Pumped Produced ADF Flow Flow pH Min pH Max Chlorine Chlorine Chlorine NH3 - N TSS TSS Min TSS Max DO TN TP Chloride Conductivity Month Year MGD MGD MGD MGD MGD su su u /I Min u /I Max u /I m /1 m /I m /I m /I m /I m /I m /I m /I umhos/cm 1 2021 1.267 1.142 0.125 0 0.2 7.43 7.6 13.5 8 19 0.07 8.65 6.3 11 8.54 0.79 0.11 2570 6250 2 2021 1.278 1.151 0.127 0.001 0.199 7.61 7.71 8.5 4 13 0.09 5.5 3.3 7.7 8.39 2500 5950 3 2021 1.184 1.072 0.113 0 0.205 7.41 7.69 9 8 10 0.06 6.2 5.9 6.5 9.354 6500 13400 4 2021 1.178 1.058 0.120 0.052 0.208 7.44 7.57 7.5 6 9 0.04 6.15 4.4 7.9 8.63 0.75 0.21 1460 4870 5 2021 1.244 1.119 0.125 0 0.314 7.53 7.59 3.5 2 5 0.4 5.15 4 6.3 9.01 1760 5630 6 2021 1.151 1.034 0.118 0 0.27 7.15 7.4 9 8 10 1.29 5.8 3 8.6 8.04 8630 20100 7 2021 1.181 1.086 0.095 0 0.179 7.36 7.75 7.5 5 10 0.22 4.1 3.6 4.6 9.05 0.95 0.14 930 3430 8 2021 1.196 1.098 0.098 0 0.228 7.47 7.54 9.5 9 10 0.16 4.6 4 5.2 9.63 1380 4260 9 2021 1.202 1.121 0.081 0 0.217 7.42 7.54 9.5 8 11 0.08 7.7 5.4 10 10.2 5050 11600 10 2021 1.213 1.118 0.095 0 0.156 7.27 7.3 5.5 3 8 0.06 7.95 3.9 12 8.96 1.05 0.39 925 3230 11 2021 1.123 1.033 0.090 0 0.148 7.65 7.65 8.5 8 9 0.07 6.6 4.1 9.1 9.13 3150 6500 12 2021 1.137 1.047 0.090 0 0.19 7.43 7.65 10 8 12 0.22 8.95 8.5 9.4 8.84 1680 3760 1 2022 1.156 1.071 0.085 0 0.153 7.2 7.64 2 1 3 0.09 5.05 4.5 5.6 9 0.69 0.12 1580 4950 2 2022 1.092 1.010 0.081 0 0.192 7.23 7.34 2.5 2 3 0.15 4.1 3.6 4.6 8.67 1510 4660 3 2022 1.115 1.025 0.090 0 0.232 7.3 7.52 8.5 6 11 0.11 3.2 3.1 3.2 8.89 2219 6370 4 2022 1.184 1.094 0.090 0 0.18 7.49 7.6 6 1 11 0.07 3.75 3.1 4.4 9.67 0.48 0.05 2360 5500 5 2022 1.232 1.141 0.091 0 0.279 7.1 7.13 1 1 1 0.14 8.7 6.4 11 10.13 1960 6070 6 2022 1.295 1.195 0.100 0 0.255 7.29 7.47 4.5 3 6 0.14 3.55 3.5 3.6 9.87 1700 5090 7 2022 1.266 1.157 0.110 0 0.197 7.42 7.64 8.5 7 10 0.04 7.35 6.5 7.9 8.2 0.76 0.14 4570 12700 8 2022 1.304 1.199 0.105 0.017 0.225 7.49 7.66 12.5 11 14 0.15 3.8 3.1 4.5 8.36 1240 4180 9 2022 1.354 1.251 0.103 0 0.167 7.42 7.49 6 3 9 0.13 5.05 4.1 6 6.79 1490 4700 10 2022 1.244 1.131 0.113 0 0.185 7.51 7.53 7 4 10 0.05 7.15 4.5 9.8 9.36 0.61 0.13 2190 6780 MAX MONTH 1.354 1.251 0.127 7.65 7.75 13.5 11.0 19.0 1.29 8.95 8.5 12.0 10.20 1.05 0.39 8630 20100 AVERAGE 1.209 1.107 0.102 7.39 7.55 7.3 5.3 9.3 0.17 5.87 4.5 7.2 8.94 0.76 0.16 2607 6817 EFFLUENT LIMITS 6.5-8.5 13 (Daily Max.) 3 ((Mo. Max.) Month Year Raw Water Pumped MGD Finished Water Produced MGD Waste Effluent Flow Total Cu u /I Iron u /I Mn u /I) WET (P/F) Salinity (ppt TDS m /I Turbidity NTU Total Zn u /I 1 2021 1.267 1.142 2 2002 510 Pass 3.41 3600 5.9 44 2 2021 1.278 1.151 3 1031 264 3.22 3500 9.5 25 3 2021 1.184 1.072 7 729 257 7.68 7200 5.1 33 4 2021 1.178 1.058 6 1095 329 Pass 2.61 2700 11 40 5 2021 1.244 1.119 3 802 566 3.04 3000 11 40 6 2021 1.151 1.034 2 1070 664 12 13000 7.3 29 7 2021 1.181 1.086 2 764 273 Pass 1.79 2000 7.6 21 8 2021 1.196 1.098 5 694 266 2.26 4260 8.1 77 9 2021 1.202 1.121 2 767 332 6.62 9500 7.2 88 10 2021 1.213 1.118 8 1703 569 Pass 1.68 2300 5.4 135 11 2021 1.123 1.033 3 1335 469 3.55 4500 7.7 127 12 2021 1.137 1.047 2 1147 414 1.98 2600 5.8 14 1 2022 1.156 1.071 2 821 321 Pass 2.64 2700 4.8 74 2 2022 1.092 1.010 2 705 241 2.49 2700 4.1 10 3 2022 1.115 1.025 2 572 218 3.47 4200 9.7 78 4 2022 1.184 1.094 2 387 187 Pass 2.97 3100 5.1 39 5 2022 1.232 1.141 2 962 281 3.3 3400 12 50 6 2022 1.295 1.195 2 467 156 2.74 2700 7.6 50 7 2022 1.266 1.157 2 789 290 Fail 7.27 9100 7.1 52 8 2022 1.304 1.199 2 1018 310 2.2 3100 6 44 9 2022 1.354 1.251 2 1316 410 2.51 3100 4.2 10 10 2022 1.244 1.131 2 859 275 Fail 3.71 3800 5.8 10 MIN MONTH 1.092 1.010 2 387 156 1.68 2000 4.1 10 MAX MONTH 1.354 1.251 8 2002 664 12.00 13000 12.0 135 AVERAGE 1.209 1.107 3 956 346 3.78 4366 7.2 50 EFFLUENT LIMITS 3.7 (Mo. Avg.) 5.8 (Daily Max.) 85.6 (Mo. Avg.) 195.1 (Daily Max.) APPENDIX F Endangered and Threatened Species IPaC U.S. Fish & Wildlife Service WaC resource list This report is an automatically generated list of species and other resources such as critical habitat (collectively referred to as trust resources) under the U.S. Fish and Wildlife Service's (USFWS) jurisdiction that are known or expected to be on or near the project area referenced below. The list may also include trust resources that occur outside of the project area, but that could potentially be directly or indirectly affected by activities in the project area. However, determining the likelihood and extent of effects a project may have on trust resources typically requires gathering additional site - specific (e.g., vegetation/species surveys) and project -specific (e.g., magnitude and timing of proposed activities) information. Below is a summary of the project information you provided and contact information for the USFWS office(s) with jurisdiction in the defined project area. Please read the introduction to each section that follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for additional information applicable to the trust resources addressed in that section. Location Craven and Pamlico counties, North Carolina 0 'r 9 B CI.n:, f P01% LLJ7 're rK9 ,) F-11 001 [H ildam��s Local office Raleigh Ecological Services Field Office 1.. (919) 856-4520 1B (919) 856-4556 MAILING ADDRESS Post Office Box 33726 Raleigh, NC 27636-3726 PHYSICAL ADDRESS 1�1�1 Dwinn flrivo Ci iitn C .l .l I I yllll I V I I V%- `JLAIL%- I Raleigh, NC 276b6-1487 �o� �o� 0 co Endangered species This resource list is for informational purposes only and does not constitute an analysis of project level impacts. The primary information used to generate this list is the known or expected range of each species. Additional areas of influence (AOI) for species are also considered. An AOI includes areas outside of the species range if the species could be indirectly affected by activities in that area (e.g., placing a dam upstream of a fish population even if that fish does not occur at the dam site, may indirectly impact the species by reducing or eliminating water flow downstream). Because species can move, and site conditions can change, the species on this list are not guaranteed to be found on or near the project area. To fully determine any potential effects to species, additional site -specific and project - specific information is often required. Section 7 of the Endangered Species Act requires Federal agencies to "request of the Secretary information whether any species which is listed or proposed to be listed may be present in the area of such proposed action" for any project that is conducted, permitted, funded, or licensed by any Federal agency. A letter from the local office and a species list which fulfills this requirement can only be obtained by requesting an official species list from either the Regulatory Review section in IPaC (see directions below) or from the local field office directly� For project evaluations that require USFWS concurrence/review, please return to the IPaC website and request an official species list by doing the following: 1. Draw the project location and click CONTINUE. 2. Click DEFINE PROJECT. 3. Log in (if directed to do so).Nx, 4. Provide a name and description for your project. 5. Click REQUEST SPECIES LIST. Listed speciesl and their critical habitats are managed by the Ecological Services Program of the U.S. Fish and Wildlife Service (USFWS) and the fisheries division of the National Oceanic and Atmospheric Administration (NOAA Fisheries?). Species and critical habitats under the sole responsibility of NOAA Fisheries are not shown on this list. Please contact NOAA Fisheries for species under their jurisdiction. 1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows species that are candidates, or proposed, for listing. See the listing status page for more information. IPaC only shows species that are regulated by USFWS (see FAQ). 2. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. The following species are potentially affected by activities in this location: Mammals NAM E STATUS Northern Long-eared Bat Myotis septentrionalis Endangered Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecptspecies/9045 Tricolored Bat Perimyotis subflavus Proposed Endangered Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecptspecies/10515 West Indian Manatee Trichechus manatus Threatened Wherever found Marine mammal There is final critical habitat for this species. Your location does not overlap the critical habitat. https://ecos.fws.gov/ecp/species/4469 Birds NAM E STATU N - Eastern Black Rail Lateral Iusjamaicensis ssp. jamaicensi Threatened Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/10477 _1% 1# Red Knot Calidris canutus rufa I( %wo) Wherever found -44h Ok There is proposed critical habitat for this species. https://ecos.fws.gov/ecp/species/1864 Red -cockaded Woodpecker Picoides borealis Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/7614 Reptiles NAME American Alligator Alligator mississippiensis Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/776 Threatened Endangered STATUS SAT Green Sea Turtle Chelonia mydas There is final critical habitat for this species. Your location does not Threatened overlap the critical habitat. https://ecos.fws.gov/ecp/species/6199 Kemp's Ridley Sea Turtle Lepidochelys kempii Wherever found There is proposed critical habitat for this species. https://ecos.fws.gov/ecp/species/5523 Leatherback Sea Turtle Dermochelys coriacea Wherever found There is final critical habitat for this species. Your location does not overlap the critical habitat. https://ecos.fws.gov/ecp/species/1493 I nsects NAME Monarch Butterfly Danaus plexippus Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/9743 Flowering Plants NAME Rough -leaved Loosestrife Lysimachia asperulaefolia Wherever found No critical habitat has been designated for this species. https://ecos.fws.gov/ecp/species/2747 \46%4 14% Critical habitats Endangered Endangered STAT �\ Candidate STATUS Endangered Potential effects to critical habitat(s) in this location must be analyzed along with the endangered species themselves. There are no critical habitats at this location. Migratory birds Certain birds are protected under the Migratory Bird Treaty Act! and the Bald and Golden Eagle Protection Acts. Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats should follow appropriate regulations and consider implementing appropriate conservation measures, as described below. 1. The Migratory Birds Treaty Act of 1918. 2. The Bald and Golden Eagle Protection Act of 1940. Additional information can be found using the following links: • Birds of Conservation Concern https://www.fws.ggv//program/migratory-birds/species • Measures for avoiding and minimizing impacts to birds https://www.fws.gov/library/collections/avoiding-and-minimizing-incidental-take-migratory-birds • Nationwide conservation measures for birds https://www.fws.gov/sites/default/files/documents/nationwide-standard-conservation- measures.pdf The birds listed below are birds of particular concern either because they occur on the USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your project location. To learn more about the levels of concern for birds on your list and how this list is generated, see the FAQ below. This is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be found in your project area. To see exact locations of where birders and the general public have sighted birds in and around your project area, visit the E-bird data mapping tool (Tip: enter your location, desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird species on your list are available. Links to additional information about Atlantic Coast birds, and other important information about your migratory bird list, including how to properly interpret and use your migratory bird report, can be found below. For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at the top of your list to see when these birds are most likely to be present and breeding in your project area. NAME BREEDING SEASON American Kestrel Falco sparverius paulus This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA https://ecos.fws.gov/ecp/species/9587 American Oystercatcher Haematopus palliatus This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. https://ecos.fws.gov/ecp/species/8935 Bachman's Sparrow Aimophila aestivalis This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Breeds Apr 1 to Aug 31 Breeds Apr 15 to Aug 31 Breeds May 1 to Sep 30 https://ecos.fws.gov/ecp/species/6177 Bald Eagle Haliaeetus leucocephalus Breeds Sep 1 to Jul 31 This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Black Scoter Melanitta nigra Breeds elsewhere This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Brown Pelican Pelecanus occidentalis Breeds Jan 15 to Sep 30 This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Brown -headed Nuthatch Sitta pusilla Breeds Mar 1 to Jul 15 This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA ChimneyN Swift Chaetura ela ica !� Breeds Mar 15 to Aug5 p g g This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Common Loon gavia immer " Breeds Apr 15 to Oct 31 This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. https://ecos.fws.gov/ecp/species/4464 T%h Double -crested Cormorant phalacrocorax auritus Breeds Apr 20 to Aug 31 This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. https://ecos.fws.gov/ecp/species/3478 Eastern Whip -poor -will Antrostomus vociferus Breeds May 1 to Aug 20 This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Kentucky Warbler Oporornis formosus Breeds Apr 20 to Aug 20 This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Lesser Yellowlegs Tringa flavipes Breeds elsewhere This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. https://ecos.fws.gov/ecp/species/9679 Painted Bunting Passerina ciris This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA Prairie Warbler Dendroica discolor This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Prothonotary Warbler Protonotaria citrea This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Red -breasted Merganser Mergus serrator This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Red-headed Woodpecker Melanerpes erythrocephalus This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Red -throated Loon Gavia stellata This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Breeds Apr 25 to Aug 15 Breeds May 1 to Jul 31 44 *".. 40( Breeds Apr 1 to Jul 31 Breeds elsewhere Breeds May 10 to Sep 10 Breeds elsewhere Ring -billed Gull Larus delawarensis Breeds elsewhere This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Royal Tern Thalasseus maximus Breeds Apr 15 to Aug 31 This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Ruddy Turnstone Arenaria interpres morinella This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA Rusty Blackbird Euphagus carol inus This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA Surf Scoter Melanitta perspicillata This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. White -winged Scoter Melanitta fusca This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. Willet Tringa semipalmata� This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Wood Thrush Hylocichla mustelina This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. Probability of Presence Summary Breeds elsewhere Breeds elsewhere Breeds elsewher 44 \0\ 40( Breeds elsewhere Breeds Apr 20 to Aug 5 Breeds May 10 to Aug 31 The graphs below provide our best understanding of when birds of concern are most likely to be present in your project area. This information can be used to tailor and schedule your project activities to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ "Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting to interpret this report. Probability of Presence ( ) Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4-week months.) A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish a level of confidence in the presence score. One can have higher confidence in the presence score if the corresponding survey effort is also high. How is the probability of presence score calculated? The calculation is done in three steps: 1. The probability of presence for each week is calculated as the number of survey events in the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25. 2. To properly present the pattern of presence across the year, the relative probability of presence is calculated. This is the probability of presence divided by the maximum probability of presence across all weeks. For example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2. 3. The relative probability of presence calculated in the previous step undergoes a statistic conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of presence score. #_ To see a bar's probability of presence score, simply hover your mouse cursor over the bar. Breeding Season ( ) Yellow bars denote a very liberal estimate of the time -frame inside which the bird breeds across its entire range. If there are no yellow bars shown for a bird, it does not breed in your project area. Survey Effort (1) Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed for that species in the 10km grid cell(s) your project area overlaps. The number of surveys is expressed as a range, for example, 33 to 64 surveys. To see a bar's survey effort range, simply hover your mouse cursor over the bar. No Data (—) V A week is marked as having no data if there were no survey events for that week. Survey Timeframe Surveys from only the last 10 years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on a years of available data, since data in these areas is currently much more sparse. SPECIES American Kestrel BCC -BCR American Oystercatcher BCC Rangewide (CON) probability of presence breeding season I survey effort — no data JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC III+ IIII ICI+ IIII HIT ]111 [111 1111 1111 1111 1111 1111 Bachman's Sparrow BCC Rangewide (CON) —....dllIIIIIIIIIIIII —I- Bald Eagle Non -BCC Vulnerable Black Scoter Non -BCC Vulnerable Brown Pelican Non -BCC Vulnerable Brown -headed Nuthatch BCC -BCR Chimney Swift BCC Rangewide (CON) Common Loon Non -BCC Vulnerable 1 0+11 0101 1111111111111111 ++•+ Jill 011+ 11+1 1111 I j I + J+I I ++$+ ++++ ++++ + + + + ++++ ++++ ++++ ++++ ++JJ +JJJ III 111I 1111 1111 1IM0 #111 1++t Jill IIF 1 1+1 �11+ 1++l Illl Jill Illl IIJ1 IIM$ loll Jill 1111 11111111 +JIJ IIII ++++ ++++ ++++ ++*+ IIII 1111 1111 ++A +111 ++++ ++++ +++ ++++ *Jl+ 1 1 1 + IIII IIII ++JJ ll++ Double -crested _ Cormorant Non -BCC Vulnerable Eastern Whip -poor _ , +-- ++ — III Jill III— ---- ---- ---- — will BCC Rangewide (CON) Kentucky Warbler _-- -- — -- Rangewide Al--IILL All Jill III— — — — — — — — — — — — — — — — — (CON) SPECIES AJ 1 FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Lesser Yellowlegs ---- ---- +--- ---- --'+ ---- --+— ---- — 4- — 4- BCC Rangewide (CON) Painted Bunting +" J+++ ++++ +++# #111 Jill Ill+ ++++ ++++ ++++ ++++ BCC -BCR Prairie Warbler ++++ ++++ +++I Jill ill$ 000+ 1+01 +1++ ++++ ++0+ ++++ ++++ BCC Rangewide mmm ___ ____ (CON) Prothonotary ++++ ++++ ++41 ji j 1111 Jill jjjl 1 J1+ ++++ ++++ ++++ ++++ Warbler ,� __` BCC Rangewide (CON) Red -breasted ++++ ++++ ++++ ++++ ++++ �1+� Merganser Non -BCC Vulnerable Red-headed 1111 1111 1 1 1 I Ail III$ �Tql Jill Jill Jill 1111 1++11111 Woodpecker BCC Rangewide (CON) Red -throated Loon 4- +++1 ++++ 4- 4- ++ —�+ +++� �_�_ _��' ���+ Non -BCC Vulnerable Ring -billed Gull Jill Jill i1 1 1 1 11+ +110 +*++ ++$+ ++++ ++I+ ++1+ ++11 1111 Non -BCC Vulnerable Royal Tern ++++ ++1+ ++11 1111 11P +011 I 1 1 1 Till +111 1111 ++11 ++++ Non -BCC Vulnerable Ruddy Turnstone +—+— —++— --+— ++1+ ---+ --4- —+-- — — — — — — — — ---- BCC -BCR Rusty Blackbird +1+1 ++++ ++1+ ++++ ++++ ++++ ++++ ++++ ++++ ++++ ++++ ++ BCC -BCR PIP Surf Scoter 1+11 1++1 +1++ ++++ ++++ ++++ ++++ + Non -BCC ++++ +++ ++ +1+ ++++ Vulnerable SPECIES JAN FEB MAR APR MAY JUN JUL AU� SEP OCT NOV DEC OppWhite-win White -winged g ++++ 1+++ ++++ ++++ ++++ -4- ++ ++ ++++ ++++ ++++ ++++ Scoter V� Non -BCC Vulnerable Willet ++++ ++++ ++++ + I I I F I I I I I 1 1+++ ++++ ++++ ++++ ++++ BCC Rangewide � . . . . (CON) Wood Thrush ++++ + + + + + + +1i1 111� J J11 1111 11++ ++++ ++++ ++++ ++++ BCC Rangewide (CON) Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds. Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any location year round. Implementation of these measures is particularly important when birds are most likely to occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures or permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site. What does IPaC use to generate the list of migratory birds that potentially occur in my specified location? The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC), and other species that may warrant special attention in your project location. The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey., banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development. Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the Rapid Avian Information Locator (RAIL) Tool. What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in my specified location? The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey., banding, and citizen science datasets. Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link. How do I know if a bird is breeding, wintering or migrating in my area? 140 \ t ) To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may query your location using the RAIL Tool and look at the range maps provided for birds in your area at the bottom of the profiles provided for each bird in your results. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area. What are the levels of concern for migratory birds? Migratory birds delivered through IPaC fall into the following distinct categories of concern: 1. "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands); 2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and 3. "Non -BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non -eagles) potential susceptibilities in offshore areas from certain types of development or activities (e.g. offshore energy development or longline fishing). Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For more information on conservation measures you can implement to help avoid and minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics. Details about birds that are potentially affected by offshore projects For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration. Models relying on survey data may not include this information. For additional information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring. What if I have eagles on my list? If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur. Proper Interpretation and Use of Your Migratory Bird Report The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ "What does IPaC use to generate the migratory birds potentially occurring in my specified location". Please be aware this report provides the "probability of presence" of birds within the 10 km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the "no data" indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of concern have the potential to be in your project area, when they might be there, and if they might be breeding (which means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ "Tell me about conservation measures I can implement to avoid or minimize impacts to migratory birds" at the bottom of your mi ratory bird trust resources page. �o� Marine mammals Marine mammals are protected under the Marine Mammal Protection Act. Some are also protected under the Endangered Species Acts and the Convention on International Trade in Endangered Species of Wild Fauna and Flora. The responsibilities for the protection, conservation, and management of marine mammals are shared by the U.S. Fish and Wildlife Service [responsible for otters, walruses, polar bears, manatees, and dugongs] and NOAA Fisheries2 [responsible for seals, sea lions, whales, dolphins, and porpoises]. Marine mammals under the responsibility of NOAA Fisheries are not shown on this list; for additional information on those species please visit the Marine Mammals page of the NOAA Fisheries website. The Marine Mammal Protection Act prohibits the take (to harass, hunt, capture, kill, or attempt to ..................................................................................................................................................................................... harass, hunt, capture or kill) of marine mammals and further coordination may be necessary for .......................................................................................................... project evaluation. Please contact the U.S. Fish and Wildlife Service Field Office shown. 1. The Endangered Species Act (ESA) of 1973. 00C V11111h. V 2. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) is a treaty to ensure that international trade in plants and animals does not threaten their survival in the wild. 3. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce. The following marine mammals under the responsibility of the U.S. Fish and Wildlife Service are potentially affected by activities in this location: NAME West Indian Manatee Trichechus manatus https://ecos.fws.gov/ecptspecies/4469 Coastal Barrier Resources System Projects within the John H. Chafee Coastal Barrier Resources System (CBRS) may be subject to the restrictions on Federal expenditures and financial assistance and the consultation requirements of the Coastal Barrier Resources Act (CBRA) (16 U.S.C. 3501 et seq.). For more information, please contact the local Ecological Services Field Office or visit the CBRA Consultations website. The CBRA website provides tools such as a flow chart to help determine whether consultation is required and a template to facilitate the consultation process. There are no known coastal barriers at this location. Data limitations The CBRS boundaries used in IPaC are representations of the controlling boundaries, which are depicted on the official CBRS maps. The boundaries depicted in this layer are not to be considered authoritative for in/out determinations close to a CBRS boundary (i.e., within the "CBRS Buffer Zone" that appears as a hatched area on either side of the boundary). For projects that are very close to a CBRS boundary but do not clearly intersect a unit, you may contact the Service for an official determination by following the instructions here: https://www.fws.gov/service/coastal-barrier-resources-system-property-documentation Data exclusions CBRS units extend seaward out to either the 20- or 30-foot bathymetric contour (depending on the location of the unit). The true seaward extent of the units is not shown in the CBRS data, therefore projects in the offshore areas of units (e.g., dredging, breakwaters, offshore wind energy or oil and gas projects) may be subject to CBRA even if they do not intersect the CBRS data. For additional information, please contact CBRA_@fws.gov. Facilities National Wildlife Refuge lands Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns. There are no refuge lands at this location. Fish hatcheries 1� There are no fish hatcheries at this location. VVI Ill� Wetlands in the National Wetlands Inventory (NWI) Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes. For more information please contact the Regulatory Program of the local U.S. Army Corps of Engineers District. Wetland information is not available at this time This can happen when the National Wetlands Inventory (NWI) map service is unavailable, or for very large projects that intersect many wetland areas. Try again, or visit the NWI map to view wetlands at this location. Data limitations The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level information on the location, type and size of these resources. The maps are prepared from the analysis of high altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A margin of error is inherent in the use of imagery; thus, detailed on -the -ground inspection of any particular site may result in revision of the wetland boundaries or classification established through image analysis. The accuracy of image interpretation depends on the quality of the imagery, the experience of the image analysts, the amount and quality of the collateral data and the amount of ground truth verification work conducted. Metadata should be consulted to determine the date of the source imagery used and any mapping problems. Wetlands or other mapped features may have changed since the date of the imagery or field work. There may be occasional differences in polygon boundaries or classifications between the information depicted on the map and the actual conditions on site. Data exclusions Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and nearshore coastal waters Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. Data precautions Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities involving modifications within or adjacent to wetland areas should seek the advice of appropriate Federal, state, or local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such activities. APPENDIX G Reasonable Potential Analyses • WTP — Total Copper • WTP — Total Zinc • WWTP — Total Copper Reasonable Potential Analysis Brown Boulevard WTP, Havelock, NC Effluent Total Copper (Cu) Concentration Effluent DMR Results Date Cu Conc (ug/L) (Cl2 Conc - Mean)2 21-Jan 2 1 21-Feb 3 0 21-Mar 7 16 21-Apr 6 9 21-May 3 0 21-Jun 2 1 21-Jul 2 1 21-Aug 5 4 21-Sep 2 1 21-Oct 8 25 21-Nov 3 0 21-Dec 2 1 22-Jan 2 1 22-Feb 2 1 22-Mar 2 1 22-Apr 2 1 22-May 2 1 22-Jun 2 1 22-Jul 2 1 22-Aug 2 1 22-Sep 2 1 22-Oct 2 1 n = 22 Mean = 3 Std Dev = 1.8121 CV = 0.6133 RPA Mult Factor (Option 2) = 1.40 Cw = 11.2 From Table 3-2 for n = 20, 95% Confidence Level and 95% Probability Basis CV RP MF 0.1 1.1 0.2 1.1 0.3 1.2 0.4 1.2 0.5 1.3 0.6 1.4 0.7 1.4 0.8 1.5 0.9 1.5 1.0 1.6 1.1 1.7 1.2 1.7 1.3 1.8 1.4 1.8 1.5 1.8 1.6 1.9 1.7 1.9 1.8 2.0 1.9 2.0 2.0 2.0 Reasonable Potential Analysis Brown Boulevard WTP, Havelock, NC Effluent Total Zinc (Zn) Concentration Effluent DMR Results Date Zn Conc (ug/L) (Cl2 Conc - Mean)z 21-Jan 44 31 21-Feb 25 602 21-Mar 33 274 21-Apr 40 91 21-May 40 91 21-Jun 29 422 21-Jul 21 815 21-Aug 77 754 21-Sep 88 1,479 21-Oct 135 7,302 21-Nov 127 5,999 21-Dec 14 1,263 22-Jan 74 598 22-Feb 10 1,564 22-Mar 78 810 22-Apr 39 111 22-May 50 0 22-Jun 50 0 22-Jul 52 6 22-Aug 44 31 22-Sep 10 1,564 22-Oct 10 1,564 n = 22 Mean = 50 Std Dev = 34.7587 CV = 0.7016 RPA Mult Factor (Option 2) = 1.40 Cw = 189.0 From Table 3-2 for n = 20, 95% Confidence Level and 95% Probability Basis CV RP MF 0.1 1.1 0.2 1.1 0.3 1.2 0.4 1.2 0.5 1.3 0.6 1.4 0.7 1.4 0.8 1.5 0.9 1.5 1.0 1.6 1.1 1.7 1.2 1.7 1.3 1.8 1.4 1.8 1.5 1.8 1.6 1.9 1.7 1.9 1.8 2.0 1.9 2.0 2.0 2.0 Reasonable Potential Analysis Brown Boulevard WTP, Havelock, NC Effluent Total Copper (Cu) Concentration Effluent DMR Results Date Cu Conc (ug/L) (Cl2 Conc - Mean)z 21-Jan 5 72 21-Apr 7 42 21-Jul 10 12 21-Oct 10 12 22-Jan 7 42 22-May 6 56 22-J u I 6 56 22-Oct 57 1,892 n= 8 Mean = 14 Std Dev = 17.6716 CV = 1.3090 RPA Mult Factor (Option 2) = 3.20 Cw = 182.4 From Table 3-2 for n = 8, 95% Confidence Level and 95% Probability Basis Cv RP MF 0.1 1.1 0.2 1.3 0.3 1.4 0.4 1.6 0.5 1.7 0.6 1.9 0.7 2.1 0.8 2.3 0.9 2.4 1.0 2.6 1.1 2.8 1.2 3 1.3 3.2 1.4 3.3 1.5 3.5 1.6 3.7 1.7 3.9 1.8 4.0 1.9 4.2 2.0 4.3 APPENDIX H WTP Backwash Solids Handling Design Memorandum CITY OF HAVELOCK WTP SOLIDS HANDLING PROJECT DESIGN MEMORANDUM EXECUTIVE SUMMARY The purpose for the WTP Backwash Solids Handling Project is to design and construct a backwash wastewater residuals facility to receive filter -backwash and softener-regenerotion- backwash wastewater from the existing 2.8 MGD water treatment plant that utilizes greensand filters and ion -exchange softeners to produce finish drinking water for the City of Havelock, North Carolina. The effluent discharge from the backwash wastewater residuals facility is to meet requirements of the existing NPDES Permit NCO078131 — effective September 21, 2014 through June 30, 2018. The design for the WTP Backwash Solids Handling Project adheres to the plan set forth in the preliminary engineering report with minor modifications made for improvement and positive change to the project. One positive change is having the effluent flow by gravity under differential head pressure rather than a pressurized flow driven by pumps. DESIGN LOAD — HYDRAULIC: The design hydraulic loading filter -softener wastewater residual process facility is 290,000 GPD and the maximum flow -rate for backwash wastewater flowing from the existing water treatment plant to the filter -softener backwash wastewater basin (BASINwASTE) is 1,360 GPM. The design minimum overall -average effluent flow -rate is 690 GPM, DESIGN LOAD — SOLIDS: The design quantity of iron in the raw water would be (3.0 ppm x 8.34 lb/gal x 2.8 MGD) or 70.1 lb /day and design quantity of oxidized iron residual solids from the filter -backlash wastewater is 1.91 x 70.1 lb/day or 133.9 lb/day. The design quantity of manganese in the raw water would be (0.150 ppm x 8.34 lb/gal x 2.8 MGD) or 3.50 lb /day and design quantity of oxidized manganese residual solids in the filter - backwash wastewater is 1.61 x 3.5 lb/day or 5.64 lb/day. The grand total of oxidized iron and manganese residual solids is 133.9 lb/day + 5.64 lb/day equals 139.54 lb/day, or 140 lb/day of residual solids from the filter -softener backwash wastewater equal to 289,892 GPD — say 290,000 GPD. WASTEWATER SETTLING BASIN: The design for the 450,000 gallon wastewater settling basin calls for a cylindrical pre -stressed concrete basin with a slope -bottom (1v:12H) to its center. POLISHING BASIN (BASINPOLISH): The plan for retrofit of the existing waste holding basin turns it into a polishing basin; the work includes demolition of existing pipe, valves and pumps and installation of new pipe plus a stainless steel floating -decanter. MOTORIZED -VALVES: The design calls for five (5) motor -operated valves. EFFLUENT AND BACKWASH FLOW METERS: The backwash flow -meter is measuring backwash wastewater from the filters and softeners. The effluent flow -meter is measuring effluent flow from the BASINSETTLE and BASINPOLISH to the DISCHARGEOUTLET• DECHLORTNATION: The dechlorination unit includes a 6'0 x 4'0 pre -fabricated fiberglass building with power, lights, heat and ventilation. It is to house a electrical distribution panel plus two peristaltic pumps and chemical storage. An injector -mixer will be installed on the 12-inch effluent pipeline in a 5'0 diameter vault. The automatic composite effluent sampler will take samples when flow is present in the effluent line. SAND DRYING -BEDS: The total volume of the sand drying beds is approximately equal to volume of the solids precipitate zone in the BASINsI TTLE. SOLIDS PUMP -STATION: The solids -pump station will periodically pump settled solids to the sand -drying beds with quantity determined by the operator. Its design flow -rate is 250 GPM and its velocity through a six-inch pipe is 2.8 FPS. UNDERDRAIN PUMP -STATION: The underdrain pump station receives filtrate from the underdrain pipes and intermittently receives top -water from the sand -drying beds. The pump operates whenever water -level in its wet -well rises to a PUMP -ON set -point and continues until water -level in the wet -well falls to a PUMP -CUFF set -point. The tinder drain -pump design flow -rate is 150 GPM and its velocity through a 4-inch pipeline is 3.8 FPS. HYDRAULICS FOR PROCESS FLOW: Normal operation for the supernatant -effluent -flow process consists of supernatant flowing from BASINSETTLE to BASINPOLlsx to DISCHARGEoaTLET• The process begins with flow from the BASINsETTI,E filling the BASINPOLIsx; it continues with un- interrupted flow from the BASINSETTLE to BASINPOLISH to DISCHARGEouTLET; and concludes with flow from the BASINPOLIsx draining to the DISCHARGEOUTLET• In addition to normal operation utilizing the BASINPOLIsx, the design provides an option to for a temporary by-pass decant operation. The operator can manually open/close valves to utilize a temporary by-pass that would allow liquid -stream {supernatant -effluent} from the BAS1NSLTTLE flow directly to the DISCHARGEOUTLET. The by-pass is a short-term option available whenever the BASMPOLISII is out -of -service for cleaning and maintenance. All flow through the temporary bypass flows through the effluent flow meter, dechlorination injector/mixer and the composite effluent sampler. Whether flow to the DISCHARGEOIITLET is from the BASINPOLISn by {normal decant operation) or directly from the BASINSETTLE {bypass decant operation), design for supernatant -effluent - discharge flow from the facility is such to meet requirements of the existing NPDES Permit NCO078131. The current estimate of construction cost is $1,930,000 with project cost including contingency $2, 610, 000. CITY OF HAVELOCK 1 WTP BACKWASH SOLIDS HANDLING PROJECT DESIGN MEMORANDUM 1.0 INTRODUCTION: The design for the WTP Backwash Solids Handling Project adheres to the plan set forth in the preliminary engineering report with minor modifications for improvement and positive change to the project. One positive change is having the effluent flow by gravity under differential head pressure rather than a pressurized flow driven by pumps. The design memorandum generally follows the NC DEQ 1 DWI Bid and Design Document Submittal Form. The commentary endeavors to present material covering primary and incidental elements in a logical sequence to explain the design with associated questions, investigations, calculations and engineering decisions as shown by the plans and specifications for the Havelock WTP Backwash Solids Handling Project. 2.0 PROJECT DESCRIPTION: The project includes a 450,000 gallon circular pre -stressed concrete waste settling basin with 60-foot diameter and 20.5-foot sidewall height plus six sand -drying beds with each having a width of 20-feet and length of 53 feet. The facility includes two pump stations, one is a 3.5 HP, 250 GPM suction -lift solids pump station with fiber -glass house, piping and control panel; the other is a 3.0 HP, 150 GPM submersible under drain pump station with 6-foot diameter wet -well and 5'0 diameter check -valve vault. The de -chlorination unit includes a 6'0 x 4'0 fiberglass building with power, lights, heat and ventilation for two (2) peristaltic pumps and chemical storage plus an injector/static mixer in a 5'0 diameter vault for feeding calcium-thiosulfate into the effluent pipeline. Other equipment includes a composite sampler, two (2) 8-inch mag-meters in 5'0 x 6'0 vaults plus five (5) motor operated valves. Another project requirement is retrofit of an existing rectangular basin (32' x 20' x 14') that includes installation of a floating decanter. Associated work for the project includes electrical/control conduit, wire, lighting and various fixtures plus additions to existing SCADA system. All site -work including demolition, excavation, installation of all yard -piping, fittings, valves and appurtenances, installation of driveway and fence plus incidental work and subsidiary obligations including erosion/sediment control and storm -water management as inherent parts of the project. 3.0 PURPOSE: The purpose for the WTP Backwash Solids Handling Project is to design and construct a backwash wastewater residuals facility to receive filter -backwash and softener -regeneration -backwash wastewater from the existing 2.8 MGD water treatment plant that utilizes greensand filters and ion -exchange softeners to produce finish drinking water for the City of Havelock, North Carolina. The effluent discharge from the backwash wastewater residuals facility is to meet requirements of the existing NPDES Permit NCO078131 — effective September 21, 2014 through June 30, 2018. See Exhibit I-- NPDES Permit 4.0 GOALS: Produce Quality Effluent for Discharge Reduce Volume of Solid Residuals for Disposal Minimize Power Consumption Maximize Options for Operation Minimize Labor Requirement for Operation Page 1 of 17 5.0 OBJECTIVES, ELEMENTS and FEATURES: The design utilizes a batch -decant process to separate residual solids and liquid. Design for the solid -stream complements disposal at an off -site landfill. Design for the liquid -stream is discharge meeting requirements of the existing NPDES Permit that includes a TSS Daily Maximum Limit of 45 mg/L and TSS Monthly Average Limit of 30 mg/L. The basic function of the project is removal of residual solids and residual liquid from the site; that function is achieved by three primary elements of design. The first is a circular settling basin (BASINSETTLE) for batch processing of the backwash wastewater from the water treatment plant and the second is a relatively small rectangular polishing basin (BASINpoLISH) that receives supernatant -decant fiom the BASINSF E. The third element is Sand Drying -Beds that reduces volume of iron oxide and manganese oxide solids for off -site disposal. The proposed BASINSETTLF is a circular concrete basin with diameter equal to 60-foot and straight-sidewall height equal to 20.5 vertical feet. The BASINpoLISH is a retrofit - conversion of an existing structure currently receiving backwash wastewater from the water treatment plant. The conversion includes a floating -decanter and motor -operated valves for control of the batch -decant process. Other design items for the project include two (2) pump stations, effluent metering, de -chlorination, effluent sampling and related piping plus necessary power and control with additions to existing SCADA. 5.1 SOLIDS -STREAM: The BASINSETTLE and batch -settling decant method for separation of solids from liquid includes various design features; the key feature is a rotating scraper mechanism with an integral center -feed pipe and center -well with baffles to facilitate removal of residual precipitate -solids from bottom of the BASINSETTLE- The design calls for a Solids Pump -Station to convey residual precipitate -solids from the BASTNSETTLE to Sand Drying -Beds and a Sand -Bed Underdrain Pump -Station to convey liquid from the Sand Drying -Beds back to the BASMSETTLE• Periodically, the iron and manganese residual solids shall be transported from the Sand Drying -Beds to an off -site landfill for appropriate disposal. In addition to receiving flow from the BASINSETTLE, the piping design allows the Solids Pump -Station to receive settled -solids flow from the BASINpoLISH. Opening the drain -line from the BASINpoLISH to convey residual solids to the Solids Pump -Station and Sand Drying -Beds is an infrequent as necessary event. In regard to the Sand -Bed Underdrain Pump -Station, normal operation would have the under -drain pump convey liquid flow from the Sand -Drying Beds to the BASINSETTLE. An optional mode -of -operation allows the operator to manually open/close valves and direct liquid flow from the Sand Drying -Beds to the BASINpoL1SI1- 5.2 UQUID-STREAM (supernatant -decant -effluent): The BASINSETTLE includes six (6) pipes for supernatant to exit the basin. The single -point IIIGIt-LEVEL OUTLET is an overflow/telescope valve that liquid will exit when it reaches overflow -level. If water - Page 2 of 017 level in the BASINSETTLE rises above the overflow/telescope valve, then liquid will flow from the BASINSETTLE through the BASINSETTLE BASINPOLISH to the DISCHARGEOUTLET. Typically, the BASINSETTLE overflow -level would be set to allow 2'0 of freeboard above normal high water -level (IIWLN); however, the operator can select a different overflow - level and high water -level (HWL). The overflow/telescope valve outlet can be used as a manual decant mechanism for the five vertical -feet of liquid below normal high water - level (HW LN). The single -point MID -LEVEL OUTLET is a motor -operated -valve (open/close) (MOV-1 O/C normally -close). It is located eleven feet below normal high water -level (HWLN) and opens upon the operator choosing to allow the supernatant -decant to flow through the MID -LEVEL OUTLET. The four -point LOW-LEVEL OUTLET is a set of four -pipes located just above the precipitate - solids zone at a low elevation in the supernatant -decant -liquid zone of the BASINSETTLE. A motor -operated -valve (open/close) (MOV-2 OIC normally -close) located on the common collection -pipe for the low-level set -of -pipes opens upon the operator choosing to allow the supernatant -decant to flow through LOW-LEVEL OUTLET. The operator can choose any of the three levels - HIGH-LEVEL, MID -LEVEL Or LOW-LEVEL and allow the supernatant -decant to flow from the BASINSETTLE. Typically, the operator will utilize either the MID -LEVEL OUTLET or LOW-LEVEL OUTLET for the supernatant -decant process. Whichever outlet is chosen, all flow from the BASINSETTLE to the BASINPOLIsrr reaches a common pipeline with a motor -operated -valve (Ilow-control) (MOV-3 FCV normally -open) located at entrance and adjacent to the BASINPOLISH• In regard to retrofit -conversion for the BASINPOLISH, the existing rectangular structure includes two chambers; one has an l x w x h dimension 28' x 24' x 14' and the other has dimension is 4' x 24' x 14'; there are three existing 10-inch wall -pipes with valves that can allow water to pass from one chamber to the other. The valves are scheduled for demolition to have one 24' x 32' x 14' hydraulic chamber for the BASINPOLISH• The key feature of the proposed BASINPOLISH is a floating -decanter that provides mechanism for top -water effluent -flow to exit the BASWPOLISH- Design flow entering the BASINPOLISH and passing through flow -control valve MOV-3 enters bottom of the BASINPOLisH• A pressure sensor/transducer monitors water level in the basin to allow direction from SCADA for the flow -control valve. The flow -control valve will modulate as necessary to maintain water level in the BASINPOLISH at an elevation less than or equal to an operator set -point. The floating -decanter and pipe system configuration for the facility will keep normal operation low-water level (LWL) above a fixed elevation and allow any latent particulate to settle in bottom of the BASINPOLISH- In addition to the basin water -level signal being used by SCADA to modulate flow - control valve MOV-3, the same signal is used by SCADA to control a motor -operated - valve (open/close) (MOV-4 OIC normally -open) at exit from the BASINPOLisi1• When the supernatant -decant and effluent -discharge process is not in progress, MOV-3 and MOV-4 at entrance and exit of the BASINPOLISH are open. Under this normally open condition, any Page 3 of 017 unanticipated flow from the over,fTow/telescope valve in the BASINsETTLE will pass through the BASINPOLtsx and continue to the DISCHARGEouTLET- The normal operation for supernatant -decant and effluent -discharge process begins with direction from the operator to allow action. Three (3) motorized valves are keys to the operational process; the first valve is (MOV-1 O/C or MOV-2 O/C normally -close) at exit from the BASINsETTLE• Whichever outlet is chosen by the operator for flow from the BASINsETTLE — the motor -operated valve moves to open. The second valve is (MOV-3 FCV normally -open) adjacent and located at entrance to the BASINPOLisx — it remains open and modulates as necessary to limit high -water -level (HWL) in the BASINPo.sH• The third valve is (MOVA O/C normally -open) adjacent to the basin and located on pipe that exits from the BASINPOLISH — it moves to close and remains in that position until water -level in the BASINPOUSH rises from fixed low water -level (LWL) to operator set -point high -water - level (HWL). When water-Ievel reaches HWL in the BASINPoLrsH, MOV-4 on pipe at exit from the BASINPOLISH moves to open. The effluent flow exiting the BASINPOLISH during the normal operation for supernatant -decant and effluent -discharge process flows through pipeline and other design features including a mag-meter for measuring effluent, de -chlorination and an effluent sampler in route to the DISCHARGEouTLET- The normal operation for ,supernatant -decant and effluent, -discharge process continues rurtil cessation of flow from the BASINsETTLE. The supernatant in the BASINsETTLE ceases to flow upon reaching operator set -point for decant water -level in the BASINsETTLE and either MOV-I or MOV-2 at respective exit from the BASINsETTLE moves from open to close. With no flow into the BASINPOLISH, its water level and the floating -decanter descend to a rest -position at fixed low water -level (LWL) in the BASWPOUSH- With floating -decanter in rest -position at fixed low water -level (LWL) in the BASINPoL1s1.1, the two motor operated valves, MOV-3 and MOV-4 at entrance and exit of the BASINPOLISH, move to full -open. As shown by the flow schematic, a bypass decant operation is possible by having flow by- pass the BASINPOLisH. The fifth motor operated valve (MOV-5 FCV normally -open) is located on a common pipeline that allows flow control for both normal decant operation and bypass decant operation. During normal decant operation with water level in the BASINPOLISH at 32.00 MSL, MOV-5 could reduce flow -rate to a rate less than approximately 1000 GPM. During bypass decant operation with water level in the BASINsETTLL at high water -level (HWL) 40.00 MSL, MOV-5 could reduce flow -rate to a rate less than approximately 1600 GPM. MOV-5 would modulate in response to operator set -point and flow -rate measured by the effluent flow meter with both parameters in the control system utilizing SCADA. 6.0 DESIGN LOAD Exhibit 11— Wastewater Data Calculation and Summary shows loading most relevant to sizing of the primary feature of the solids handling facility — the BASINsETTLF. Page 4 of 017 6.1 DESIGN LOAD ---- INFLUENT HYDRAULIC FLOW: The design hydraulic loading for the backwash wastewater residual facility is a direct function of the existing water treatment plant design capacity with its operational mode for filter -backwash and softener - regeneration -backwash. FILTERS: The existing water treatment plant is capable of producing 2.8 MGD of finish - water by utilizing four (4) softeners and two (2) filter trains each with three (3) filters. Each of the six (6) filters undergoes a nine -step filter -backwash once every 24-hours. The design raw water flow -rate through each filter is 324 GPM with all six in operation and 389 GPM with 5 filters in operation and one in backwash. The current condition of the well -pumps and filter pumps has the raw water flow -rates) through each filter respectively 183 GPM and 220 GPM. With current average daily water production approximately 1.0 MGD, the current raw -water flow -rate is less than the design rate, and not causing issue in regard to finish - water production. Current pressure -drop -across -the -filter just prior to backwash is 2.5 PSI which is much less than the maximum allowable pressure -drop -across -the -filter of 10 PSI. Execution of filter -backwash before reaching maximum allowable pressure -drop -across -the - filter can promote efficient operation of the filter and extend service -life of the filter media. Based on observation of pressure -drop and current raw water flow -rate, estimate of pressure - drop -across -the -filter just prior to backwash for design raw -water flow -rate equal to 324 GPM through each filter is 7.8 PSI and less than the maximum allowable pressure drop. Table 8-I - Summary of Filter -Backwash Wastewater from one filter follows: Table 84: Summary of Filter -Backwash Wastewater ACTION TIME QaW — FLOW TOTAL de -pressurize 1 minute 450 GPM 450 gallon drain -down 5 minute 450 GPM 2,250 gallon Air 2 minute 0 GPM 0 gallon air/water 3 minute 450 GPM 1,350 gallon slow -refill 2 minute 450 GPM 900 gallon Backwash 10 minute 1,360 GPM 13,600 gallon bed -settle 2 minute 0 GPM 0 gallon Rinse 3 minute 339 GPM 1,017 gallon 29 minute 19,567 gallon The total filter -backwash wastewater generated is 6 x 19,567 gallons or 117,402 GPD and the process requires 6 x 29 minutes equals 174 minutes or 2.9 hours /day. SOFTENERS: An operator set -point has a softener -regeneration -backwash event for each softener occur after n-gallons of water pass through the softener. At any given time with both filter trains on-line, six (6) filters and all four (4) softeners could be processing water or three (3) softeners processing water while one (1) softener undergoes softener -regeneration - Page 5 of 017 backwash. With only one filter train and three (3) filters on-line, the softeners rotate as necessary to ensure two (2) softeners are always processing water. The softener mode -of -operation based on gallons of flow includes a changeable independent set -point for each softener and fluctuating daily flows dependent on variable demand from the water system. The quantity of softener -regeneration -backwash wastewater is less predictable than for filters with mode -of -operation based on a fixed time. However, with average operator set -point flow for the softeners equal to 325,000 gallons and accounting for increase in flow for each of three (3) softeners when one (1) softener undergoes softener -regeneration backwash; there could be an average of 81/2 softener - regeneration -backwashes per day. A single four -step softener -regeneration backwash action for one softener takes 78 minutes and generates over 20,000 gallons of softener -regeneration backwash wastewater. Table 8-I1 - Summary of Softener -Regeneration -Backwash Wastewater from one softener follows: Table 8-IL• Summary of Softener -Regeneration -Backwash Wastewater ACTION TIME QaW— FLOW TOTAL slow rinse 21 minute 66 GPM 1,386 gallon fast rinse 27 minute 451 GPM 12,177 gallon Regeneration 20 minute 101 GPM 2,020 gallon Backwash 10 minute 471 GPM 4,710 gallon 78 minute 20,293 gallon The design total softener -regeneration -backwash wastewater generated is 8.5 x 20,293 gallons or 172,490 GPD and the process requires 8.5 x 78 minutes equals 663 minutes or 11.0 hours /day. {Note: The softener -regeneration -backwash mode -of -operation is further explained in discussion of influent constituents.) As shown by tables, the maximum flow -rate for backwash wastewater flowing from the water treatment plant to the backwash -wastewater basin — BASINSETTLe is 1,360 GPM during filter backwash and the minimum flow -rate is 66 GPM during softener -regeneration -backwash. Approximately 14 hours per day is spent on backwash activity and the grand total of filter - backwash plus softener -regeneration -backwash wastewater is (117,402 GPD + 172,490 GPD) equals 289,892 GPD — say 290,000 GPD. The design hydraulic loading for the backwash wastewater residual facility with flow fiom filters and softeners in the WTP is 290,000 GPD 6.2 DESIGN LOAD —EFFLUENT HYDRAULIC FLOW: When utilizing the batch -decant process, the normal operation for supernatant -decant process would preferably occur when the basin was quiescent and would not transpire when flow was entering the basin or during a quiescent time when particles are settling in the basin. The Iron and Manganese Removal Handbook — Page 6of017 Second Edition (2015); AWWA when describing the batch -settling -decant method makes statement that follows: "Generally the filter -backwash wastewater from an iron and manganese pressure filter will settle in approximately 3 hours, after which the decant quality is generally less than 1-NTU. After settling period is complete, the supernatant flows to the plant influent or a local waterway." The clarifier with rotating scraper mechanism having integral center -feed pipe and baffled center -well is specifically designed to minimize disturbance when flow is entering the basin. However, if one chose to decant when there is no -flow into the basin and decant only after a three hour period of no -flow; there could be only seven (7) hours available for supernatant - decant process. With daily outflow equal daily inflow, the average effluent flow over seven hours would be {290,000 gat/ [24 hr (14 hr + 3 hr) x 60 min /hr] } or 690 GPM. The design minimum overall -average effluent flow -rate is 690 GPM and actual overall average effluent flow -rates should be greater than 690 GPM, 6.3 DESIGN LOAD — INFLUENT CONSTITUENTS: The constituent loading for the backwash wastewater residual facility is a function of the water treatment plant design capacity with its operational mode for filter -backwash and softener -regeneration -backwash plus solids in the raw water passing through the filters and the brine used to regenerate the softeners. The water treatment plant receives raw water from the Castle Hayne Aquifer by means of four (4) wells with two (2) wells on the WTP Site and two (2) remotely located with respective straight-line distances approximately 2,000 and 2,900 feet from the WTP. The raw water from the Castle Hayne Aquifer in this small area is relatively consistent over time and space with negligible short-term variations in constituents and water quality. 6.4 INFLUENT CONSTITUENTS 1 FILTER -BACKWASH WASTEWATER: As shown in the Preliminary Engineering Report, the City of Havelock's raw water data for the Year 2014 shows iron concentration minimum equal to 2.00 mg/L; maximum 3.69 mg/L and the average 2.68 mg/L. The design concentration of iron in the raw water is 3.0 mg/L. Iron in the raw water is oxidized during water treatment and filtration to have Fe(OH)3 such that 1 mg/L of soluble iron in the raw water oxidizes into 191 mg/L of residual solids. The existing water treatment plant is capable of producing 2.8 MGD. The design quantity of iron in the raw water would be (3.0 ppm x 8.34 lb/gal x 2.8 MGD) or 70.1 lb /day and design quantity of oxidized iron residual solids from the filter -backwash wastewater is 1.91 x 70.1 lb/day or 133.9 lb/day. In regard to manganese, raw water data for the Year 2014 shows manganese concentration minimum equal to 0.051 mg/L; maximum 0.298 mg/L and the average 0.137 mg/L. The design concentration of manganese from the raw water is 0.150 mg/L. The manganese in the raw water is oxidized during water treatment and filtration to have Mn(OH)2 such that 1 mg/L of soluble manganese in the raw water oxidizes into 1.61 mg/L of residual solids. With the existing water treatment plant capable of producing 2.8 MGD, the Page 7 of 017 design quantity of manganese in the raw water would be (0.150 ppm x 8.34 lb/gal x 2.8 MGD) or 3.50 lb /day and design quantity of oxidized manganese residual solids in the filter - backwash wastewater is 1.61 x 3.51b/day or 5.64 lb/day. The grand total of oxidized iron and manganese residual solids is 133.9 lb/day + 5.64 lb/day equals 139.54 lb/day, or 140 lb/day of residual solids from the filter -softener backwash wastewater equal to 289,892 GPD — say 290,000 GPD. The design concentration of total suspended solids (TSS) in the combination of filter -backwash wastewater and softener - regeneration -backwash wastewater is [140 lb/day / (8.34 lb/gal x 0.290 MGD)] equal to 57.9 mg/L or say 58.0 mg /L. {Note: A negligible quantity of suspended solids is expected in the softener -regeneration -backwash wastewater.) 6.5 INFLUENT CONSTITUENTS 1 SOFTENER -REGENERATION -BACKWASH WASTEWATER: The water treatment plant produces water to achieve its target hardness for the finish -water by blending filter -softener -process water that has zero hardness with filter process water that has the same hardness as the raw water. The ratio can vary, but the typical blend for the existing water treatment plant is 85% filter -softener process water and 15% filterprocess water. The design water production rate is 2.8 MGD or 1944 GPM of finish -water meaning the blend would utilize (0.15 x 1944 GPM) or 292 GPM of filter -process water and (0.85 x 1944 GPM) or 1652 GPM of filter -softener process water to produce the finish -water with a target hardness selected for the WTP. The raw water data for Year 2014 shows hardness varying from 193 to 290 with average equal to 247. The design number for the raw water hardness is 290 and the target for finished -water hardness is between 45 and 60. HARDNESS REMOVAL — The softeners remove grains of hardness at a given softener removal -rate equal to 17.1 grains /gallon and require periodic regeneration to maintain that removal rate. The total hardness removal requirement per day equals [1652 GPM x 1440 min x (290 117.1)] / 1000 or 40,344 K-grain. SOFTENER CAPABILITY --- The given exchange capacity of the softener resin varies depending on type and manufacturer of the resin plus condition and age of the resin in the softener. A given softener exchange capacity of 20 K-grain /CF is typical and reasonable for the Havelock WTP. With average volume of resin for each of four softeners equal to 288 CF, the total hardness removal capability equals [4 x 288 CF x 20 K-grain /CF)] or 23,040 K- grain/regencration-cycle. REGENERATION CYCLE — The softener-regeneration-cycleMAX equals hardness removal requirement divided by hardness removal capability or 40,344 K-grain / 23,040 K-grain equals 1.75 cycle /day or one (1) softener regeneration for each softener every (24 hr / 1.75) or 13.7 hours and/or one (1) softener regeneration for each softener every [(1652 / 4) x 13.7 x 60] or 339,478 Gallon. The design regeneration -cycle is an operator set -point appropriately less than the regeneration-eyeleMAx. Each softener has a changeable set -point. Based on current set -points, the design average regeneration -cycle flow for the water treatment plant softeners is 325,000 Gallon. With the existing water treatment plant capable of producing 2.8 MGD (1944 GPM), and considering time that each softener experiences increased flow Page 8 of 017 while one softener is off-line to backwash the design average number of softener - regeneration -backwashes /day is approximately 8.5 generating 172,490 GPD ' of softener - regeneration -backwash wastewater. SOFTENER -REGENERATION -BACKWASH WASTEWATER SALINITY — The softener - regeneration removes calcium and magnesium on the resin and replaces that calcium and magnesium with sodium. The manufacturer of the softener and the resin concur on requirements for regeneration that includes using 6.0 lb of salt (NaCl) for each cubic foot of resin. The total amount of salt would be (6.0 LB /CF x 288 CF) or 1,728 LBSALT. The salt solution is conveyed by the brine pumps to the softener in a 10% brine solution with a flow - rate equal to 101 GPM for 20 minutes. The brine solution flowing through the softener for 20 minutes with flow -rate equal to 101 GPM generates a total of 2,020 gallons of brine with 1,728 lb of salt in the wastewater from each softener -regeneration backwash. The salt is a dissolved solid contributing to the quantity of total dissolved solids (TDS) in the backwash wastewater. Each softener - regeneration -backwash generates 20,293 gallons of softener -regeneration -backwash wastewater including 2,020 gallons of brine with 1,728 lb of salt. The total softener - regeneration backwash wastewater generated in one day is 8.5 x 20,293 GAL /regeneration or 172,490 GPD with salinity equal to [(8.5 x 1,728 LBSALT) / (8.5 x 20,293 gal x 8.34 LBWATER /gal)] x 100 which equates to 172,490 gallons of a 1.0% salt solution /day. When the softener -regeneration backwash wastewater is combined with the filter -backwash wastewater the mix becomes {(8.5 x 1,728 LBSALT / [(8.5 x 20,293 gal) + (6 x 19,567 gal)] x 8.34 lb/gall x 100 equals a 0.6% solution saltwater. 7.0 DESIGN ELEMENTS The existing backwash wastewater process consists of a rectangular waste holding basin with overall dimension of 32' x 24' x 14' and approximate operational capacity 63,000 gallons. It has two chambers; one is a primary holding chamber and the other has two pumps that operate alternately conveying effluent to a discharge vault with diameter and height equal to 5'0. The effluent flows from the basin through a meter and tablet feeder to the discharge vault and a 10-inch pipe before entering a drop inlet. The waste holding basin is being retrofitted to become a polishing basin. The pumps, meter and tablet feeder are being supplanted by the proposed project which includes demolition and abandonment of the discharge vault. The design elements being sized for the project include the following: WASTE SETTLING BASIN PIPELINE, FITTINGS, VALVES AND APPURTENANCES FLOATING DECANTER DECHLORINATION FACILITY EFFLUENT METER BACKWASH METER Page 9 of 017 )�, SAND -DRYING BEDS )�> SOLIDS PUMP STATION )�' UNDERDRAIN PUMP STATION 7.1 FILTER -SOFTENER BACKWASH WASTEWATER BASIN (BASINSETTLE) STRUCTURE: The primary feature of the backwash -wastewater residual facility is the BASINsETTLE• The BASINSETTLE provides the basin structure for a batch -settling method to process 117,402 GPD of filter - backwash wastewater with its iron oxide and manganese oxide suspended solids plus 172,230 GPD of softener -regeneration -backwash wastewater with dissolved solids in a solution with salinity approximately 1.0%. The design calls for a basin that contains a one -day volume of filter -backwash -wastewater and softener -regeneration -backwash wastewater plus a 15% buffer plus volume to store 4- days of settled -solids. The BASTNSETTLE shown in Figure 7.1 includes an operational volume as follows: One -Day Volume -- 290,000 Gallon (289,632) Buffer — 49,000 Gallon (48,730) SUBTOTAL — 339,000 Gallon (338,362) Settled -Solids — 70,000 Gallon (70,492) TOTAL — 409,000 Gallon (408,362) The BASINSETTLE design allows iron and manganese particulate to continuously settle out -of - the -filter -backwash wastewater. The design with supernatant -decant zone volume approximately 339,000 gallons and appropriate mode -of -operation provides a minimum of three (3) consecutive hours for settling with no flow into the BASINSETTLE. The precipitate -solids zone at the basin bottom has a design volume of 70,000 gallons to hold a variable concentration of precipitate - solids. The solids settle and compress as a rotating scraper mechanism moves material to a hopper -sump with discharge pipe for flow to the solids -pump station. The Solids Pump - Station conveys solution of residuals to the dewatering system --- Sand -Drying Beds. WASTEWATER SETTLING BASIN: The design for the 450,000 gallon wastewater settling basin calls for a cylindrical pre -stressed concrete basin with a slope -bottom (Iv:12H) to its center having dimensions and elevations as follow: DIAMETER 60.0 FT SIDE -WALL HEIGHT 20.5 FT (w/operational water depth 18.5 VF) TOP -OF -WALL 42.00 MSL HIGH-LEVEL OUTLET 40.00 MSL one 8-inch exit with manual telescoping valve MID -LEVEL OUTLET 29.17 MSL one 8-inch exit with motor -operated MOV-1 (O/Q LOW-LEVEL OUTLET 24.00 MSL four 6-inch exits with motor -operated MOV-2 (O/Q BASE OF CENTER PIER 19.17 MSL one 20-inch center inlet pipe Page 10 of 017 The pre -stressed concrete basin shall include certified structural design, calculations and drawings that include consideration of the soils report, local conditions and applicable codes. Buoyancy forces will be addressed by means of pressure relief valve design from the engineer certifying the design of the basin. See Exhibit III- Soils Report 7.2 ROTATING SCRAPER MECHANISM W/ CENTER FEED AND BAFFLE EQUIPMENT: The rotating scraper mechanism and other basin features facilitate processing of the liquid and solid streams to enter and exit the wastewater settling basin. The equipment features follow: Mechanism Material — Painted Carbon Steel Drive Motor — 0.5 HP for collector drive w/ overload device plus local alarm light, local and remote control, plus run signal to SCADA Scraper for settled -solids Center feed -well with baffles Stationary walkway with handrails See Exhibit IV Rotating Scraper Mechanism 7.3 POLISHING BASIN (BASINPoLIsrl): The plan for retrofit of the existing waste holding basin turns it into a polishing basin; the work includes demolition of existing pipe, valves and pumps and installation of new pipe plus a stainless -steel floating -decanter. The design utilizes the floating decanter to optimize performance with fixed dimension of the existing rectangular structure. The floating decanter removes upper -most water throughout the decant -operation. No water exits the basin when decanter ascends from law -water -level to the high -water -level, water exits the basin with the decanter at high -water -level and continues to exit as decanter descends from high -water -level to low -water -level. With the decanter at low-level in the BASINPOLISH, one can remove all of the liquid above low-Ievel outlets in the BASINSETTLl. The existing structure to serve as the polishing basin has dimensions as follow: DIMENSION 32' x 24' x 14' OPERATIONAL DEPTH 12.0 FT DECANT DEPTH 8.5 FT TOP -OF -WALL 34.00 MSL OVERFLOW -WATER -LEVEL 33.00 MSL HIGH-LEVEL OUTLET 32.00 MSL LOW-LEVEL OUTLET 23.50 MSL BOTTOM 20.00 MSL 7.4 FLOATING -DECANTER: The T-shape, stainless -steel floating -decanter has a 10-inch diameter and connects to exit pipe with a swivel joint fitting that allows it to ascend and descend Page 11 of 017 through its range of motion with maximum from horizontal centerline being 60°. See Exhibit V — Floating Decanter 7.5 MOTORIZED -VALVES: The design calls for five (5) motor -operated valves. Three (3) of these are on -off valves — one eight -inch, one ten -inch and one twelve -inch. The other two are flow control valves with with modulating actuators — one eight -inch and one 12-inch valve. 7.6 EFFLUENT AND BACKWASH FLOW METER FLOW -METER: The backwash flow -meter is measuring backwash wastewater from the filters and softeners as it passes through a common pipeline to the BASINsETTLE with range of seven different flow -rates between 0 - 1360 GPM. The associated velocity range through the 8-inch backwash meter is 0 — 8.7 FPS. The effluent flow -meter is measuring effluent flow from the BASINSETTLE and BASINPOLzsa to the DISCHARGEOOTUT with range of flow -rates from 0 — 1500 GPM and corresponding velocity range 0 — 9.6 FPS. The normal service velocity range for an eight -inch mag-meter is 0 — 39 FPS with corresponding flow range 0 — 6100 GPM. The preferred service range is 2 — 20 FPS with corresponding flow range 313 --- 3100 GPM. All of the anticipated flows are within the normal service range for the meter(s). For each and both the backwash meter and effluent meter, the design selection is an 8-inch mag-meter with transmitter that will communicate with SCADA. See Exhibit VI ---Magnetic Flow Meter 7.7 DECHLORINATION 7.7A BUILDING, STORAGE TANK PUMPS, AND POWER/CONTROL PANEL: The dechlorination unit includes a 6'0 x 4'0 pre -fabricated fiberglass building with power, lights, heat and ventilation. It is to house a electrical distribution panel plus two peristaltic pumps and chemical storage. The pumps deliver calcium-thiosulfate to a nearby injector mixer to ensure dechlorination of effluent leaving the premises. See Exhibit VII—Dechlorination 73B INJECTOR/MIXER: An injector -mixer will be installed on the 12-inch effluent pipeline in a 5'0 diameter vault. The calcium-thio sulfate is injected into the effluent pipeline by the static miner. It is made of stainless steel and includes a 1-inch duty inlet connection for injecting de -chlorination chemical. See Exhibit VII — Dechlorination 7.7C VAULTS: Vaults are provided for various items including the injector/mixer, two (2) magnetic flow -meters and a check valve. See Exhibit VIH--Bouyancy Calculation — Vaults 7.8 EFFLUENT SAMPLER The automatic composite effluent sampler is described in the specifications. It will take samples when flow is present in the effluent line and keep composite sample in a climate controlled sample storage compartment. The unit is approximately 44" x 44" with height equal to 50-inches. See Exhibit VII—Dechlorination Page 12 of 017 7.9A SAND DRYING -BEDS: The total volume of the sand drying beds is approximately equal to volume of the solids precipitate zone in the BASINSETTLE• As particles continuously settle to the bottom of the BASINSEfTLE, the lowest layers undergo concentration and consolidation; the mix thickens and it is periodically pumped to the sand -drying beds. The design area of each bed is 1,060 SF and each will hold 1,590 CF of liquid -solid mix. With six sand -beds the total volume is 71,359 gallon and approximately equal to 70,492 gallon which is the volume of the solids precipitate -zone in the BASINSETTLE- The normal operation for the BASINSETTLE would have only part of thickened -mix periodically sent to the sand -drying beds. The operator would have the solids pump station convey thickened -mix from bottom of the BASINSETTLE to the sand -drying bed and allow time for solids to settle before directing water through the telescoping valve(s) to the underdrain pump station for return to the BASINSETTLE• The schedule and details for periodic conveyance of solids -in -solution to the solids pump station and decanting top -water to the underdrain pump station to allow dewatering by the sand beds is an activity that requires visual observation and oversight by the operator. One operational scenario would pump approximately 17,300 gal /week or 69,300 gal /month from bottom of the settling basin to the sand drying beds by filling one drying bed every 5 days which equates to filling each of the drying beds once a month. Under this mode -of - operation, the process could continue each month until ready for disposal. Based on typical sand -drying bed performance; removal of solids from the sand drying beds could transpire every six -months with depth of solids equal to approximately 3-inches. In that case the volume of residual solids for loading and hauling is 1590 CF of residual solids for disposal every six -months. As with loading the sand -drying beds, the schedule and details for unloading the sand -drying beds plus hauling and disposal of residual solids is an activity that requires observation and judgment by the operator. 7.9B SOLIDS PUMP -STATION: The solids -pump flow -rate is relevant to loading Worn the filter - backwash wastewater with hydraulic design Ioad equal to 117,400 GAL /DAY. The filter - backwash wastewater includes 15% of 117,400 or 17,610 GAL /DAY of solids that settle into the precipitate -solids zone of the BASINSETnE. However, normal operation would not have the pump station operate every day. The solids -pump station will periodically pump settled solids to the sand -drying beds with quantity determined by the operator. Considerations for the pump -rate include pipe diameter relevant to velocity for conveyance of liquid with particulate plus effort to minimize labor requirements for operation. The solids -pump design flow -rate is 250 GPM and its velocity through a six-inch pipe is 2.8 FPS. The flow -rate allows the operator to pump the volume of one sand bed in 46 minutes or volume of six sand beds in approximately 4% hours. The operator could elect to periodically pump more or less thickened -mix on any given day; how often and how much pumping is an operational decision dependent on evaluation of residuals in the precipitate -solids zone and the sand beds. The solids -pump calculations and rationale for selection of 3.0 horsepower suction -lift pump are shown in Exhibit IX Solids Pump Station. 7.9e UNDERDRAIN PUMP -STATION: Similar to the solids pump -station, the under -drain pump flow - rate is relevant to hydraulic loading equal to 17,610 GAL /DAY liquid -solid mix in the BASINsETTLE. The underdrain pump station receives filtrate from the underdrain pipes and Page 13 of 017 intermittently receives top -water from the sand -drying beds. The pump operates whenever water -level in its wet -well rises to a PUMP -ON set -point and continues until water -level in the wet -well falls to a PUMP -OFF set -point. After the sand -drying bed receives flow from the solids pump station, solids settle to bottom of the mix. At appropriate time, the operator utilizes telescoping valve(s) to allow water into the underdrain pump station wet -well. The time required for optimal settling of solids in the sand beds before directing water through the telescoping valve is a determination made based on visual inspection, experience and judgment by the operator. The under drain -pump design flow -rate is 150 GPM and its velocity through a 4-inch pipeline is 3.8 FPS. The pump -rate allows pumping of water from one sand bed in less than 1 %2 hour at a time selected by the operator. The underdrain pump calculations and rationale for selection of 3.5 horsepower submersible pump are shown in Exhibit X — Underdrain Pump Station. 8.0 HYDRAULICS for PROCESS FLOW The flow calculations with worksheets and sketches for proposed flows are shown in Exhibit XI — Hydraulic Calculation and Summary that cover backwash wastewater from the WTP to the BASMSETTLE, supernatant-effluent.flow from the BASiNSETTLE to the BASINPOLISII to the DISCHARGEOUTLET plus residual -solids flow from the BASINsETTLE to the Sand -Beds, residual -liquid flow from the Sand -Beds to the BASINSETTLE and related optional flows. The design hydraulic calculations primarily use the Hazen -Williams Formula and continuity equation with some evaluations using the Manning Formula. Evaluation of various flows was done with excel worksheets and other calculations. The majority of process flows under consideration are either pressure flow driven by head differential or pressure flow driven by pumps; headloss calculations for these flows utilize the Hazen -Williams Formula as follows: Hazen -Williams — HL = .002083 ((100 Q / C)L852 / D4.8655] L HL is headloss (FT -HD), Q is a flow -rate (GPM), C a roughness coefficient -of -friction, D is diameter of pipe (INCH); L is length of pipe (FT). Typically, C can vary between 100 and 150 depending on type, age and condition of the pipe material. Evaluation of flow through an existing 18-inch storm -water pipe considers flow with both the Hazen -Williams Formula and the Manning Formula in concert with the Continuity Equation as follows: Manning — V = (1.49 / n) RH' S" and RH = A / PW V is velocity in feet per second (FPS), n a roughness coefficient -of -friction, RH is the hydraulic radius equal to cross-section area (SF) of flow divided by the wet perimeter (FT) of flow; S slope of pipe or channel ftv / fil, Typically, n can vary between 0.010 and 0.030 for pipes, 0.025 and 0.045 for canals and 0.025 and 0.150 for streams. With velocity (V) and area (A) known one can calculate the flow -rate (Q) with continuity equation. Page 14 of 017 Continuity — Q = V A Q is flow -rate in cubic -feet per second (CFS), V is velocity in feet per second (FPS) and A is cross -sectional area -of -flow in square feet (SF). Q-GPM is equal to Q-CFS x (7.48 gal I CF) x (60 sec/min); 1 CFS equals 448.80 GPM. 8.1 PRIMARY FLOWS: The proposed backwash wastewater residualpocess facility includes four (4) primary flows through pipelines between structures utilizing differential head in categories that follow: Q 100 backwash flow from distribution system to WTP filters to BASINSETTLE Q200 backwash flow from distribution system to WTP softeners to BASINSETTLE Q300 supernatant-effluentflow from BASINSETTLE to BASINroLlsx Q400 supernatant-effluent,flow from BASINSETTLE or BASINPOLISH to DISCHARGEOUTLET 8.2 Q 100 AND Q200: Water flowing from the distribution system to the filters for backwash and filter backwash wastewater flow to the BASINSETTLE is Q 100. Similar flow relevant to the softeners is Q200. The falter -backwash and softener -regeneration -backwash wastewater fiom the water treatment plant flows through a 10-inch pipeline in the yard and beneath the basin floor to a 20-inch pipe for entry into the BASINSETTLE- The tank has a diameter equal to 60-feet and sidewall height equal to 20.50 vertical feet; flow enters a center -well with 12-foot diameter and baffle system located at center of the scraper mechanism coinciding with the center of the BASINSETTLE- The filter -backwash operational plan for the water treatment plant has water from the distribution system flow through the backflow prevention device and provide backwash - water for filters in the WTP. The three (3) operational wastewater flow -rates are 339 GPM, 450 GPM and 1360 GPM. The backwash operation for the filters causes only a minimal increase in head for backwash wastewater flow to the proposed BASINSETTLE and available head is adequate for backwash of the filters {and softeners) in the WTP. With flow equal to 1360 GPM, the design calculations show the proposed additional pipeline has a friction headloss of 4.6 FT -HD and the BASINSETTLE structure increases static head 6 FT -HD. The total increase in head for the proposal is 10.6 FT -HD. The available head from the elevated tank at its low water -level (LWL) and high water -level (HWL) is respectively 110 and 140 FT -HD. In comparison the 7.5 FT increase in head from current operation appears negligible. However, to confirm adequate available head, design consideration is given a chosen filter with associated pipe and fittings for flow -path that could experience the greatest friction headloss — Filter 06 with Qmax equal to 1360 GPM. The headloss calculation for flow -path through Filter 06 indicates no adverse hydraulic consequence for Qmax and the flows from on -site point in the distribution system to the BASINSETTLE- Page 15 of 017 The softener -regeneration -backwash operational plan is similar to the filters in regard to water flow. The softener regeneration -backwash is a four -step process with one being brine - regeneration and other three being two rinses and one backwash. The four (4) flow -rates during softener regeneration -backwash process are 66 GPM, 101 GPM, 451 GPM and 471 GPM. All are less than filter backwash flow equal to 1360 GPM. With the lower flow -rates, headloss is less for softener backwash flows than for greater filter backwash flows. The outcome of headloss calculation for worst case Filter 06 with flow equal to 1360 GPM indicates lesser filter and softener backwash flows will not suffer adverse effect of headloss through flow path to the BASINSETTLE. See Exhibit XII — Hydraulic Calculation and Summary — Backwash Wastewater from WTP to the Basin Settle 8.3 Q300 /Q300-400 /Q400 \ NORMAL DECANT OPERATION FOR SUPERNATANT- EFFLUENT - DISCHARGE: Normal operation for the supernatant -effluent -flow process consists of supernatant flowing from BASINSETTLE to BASINPOLISx to DISCHARGEOUTLET• The process begins with flow from the BASINSETTLE filling the BASINPOLIsH; it continues with un-interrupted flow from the BASINSETTLE to BASINPOLISI1 to DISCHARGEouTLET, and concludes with flow from the BASINPOLISH draining to the DISCHARGEOUTLET. One of the hydraulic calculations depicts normal decant operation from BASINSETTLE for 290,000 gallons and 338,000 gallons of supernatant. During the normal decant operation, it takes about one-half hour for water to reach high -water -level in the BASINPOLISH. Then a flow control valve limits water -level in the BASINPOLISH such that inflow equals outflow for the BASINPoLlsi-I• With water level in the BASINPOLISLI at 32.0 MSL and elevation of the DISCHARGEouTLET 22.1 MSL effluent flow is approximately 986 GPM (2.2 CFS). As water level in the BASINSETTLE descends the flow rate decreases to 0 GPM. With 290,000 gallons of effluent flowing from the BASINSETTLE in approximately six hours, the overall average flow -rate equal to 795 GPM (1.8 CFS) and one could decant all 338,000 gallons of the supernatant from the BASINSETTLE in approximately 8 hours with overall average flow -rate equal to 693 GPM (1.5 CFS). Both of these flow -rates for normal decant operation are equal or greater than minimum design average effluent rate of 690 GPM (1.5 CFS). See ExhibitA711 —Hydraulic Calculation and Summary — Normal Decant Operation 8.4 Q400 1 TEMPoRARY BYPASS DECANT OPERATION: The Mows to the DISCHARGEOUTLET are categorized as a series of flows Q400. Q401 is normal decant flow from the BASINPOLISH; Q402 is temporary bypass flow from the BASINSETTLE. In addition to normal operation utilizing the BASINPOLISH, the design provides an option for a temporary by-pass decant operation. The operator can manually open/close valves to utilize a temporary by-pass that would allow liquid -stream (supernatant -effluent) from the BASINSETTLE flow directly to the DISCHARGEou'rLET. The by-pass is a short-term option available whenever the BASINPoLIsn is out -of -service for cleaning and maintenance. All flow through the temporary bypass flows through the effluent flow meter, dechlorination injector/mixer and the composite effluent sampler. Page 16 of 017 Whether flow to the DISCHARGEOUTLET is from the BASINQOLIsx by (normal decant operation) or directly from the BASINsETTLE (bypass decant operation), design for supernatant -effluent - discharge flow from the facility is such to meet requirements of the existing NPDES Permit NCO078131. See Exhibit XIV — Hydraulic Calculation and Summary Temporary Bypass Decant Operation 9.0 CLOSING COMMENT As shown by Exhibit XV -- Process Flow Schematic, the proposed flow has backwash wastewater travel first to the waste settling basin and secondly to the waste polishing basin. In a manner similar to the existing system, the effluent flow continues through the effluent flow -meter, dechlorination and sampling before to discharge into McCotter Canal. The additional electrical load for the proposed rotary scraper mechanism and the two (2) small pump stations and is minimal compared to entire electrical load for the entire water treatment plant. See ExhihitXVI — Electrical Load Summary The current estimate of construction cost is $1,930,000 with project cost including contingency $2,610,000. See Exhibit XVII — Opinion of Probable Cost Page 17 of 017 APPENDIX I WTP Backwash Solids Handling Plan Sheets CITY OF HAVELOCK CRAVEN COUNTY, NORTH CAROLINA WTP BACKWASH SOLIDS HANDLING SRF PROJECT NO. CS 370429=06 SHEET INDEX Sheet Number Sheet Title G1 COVER SHEET G2 SURVEY - JAMES C. SIMMONS, JR G3 ABBREVIATIONS AND NOTES G4 EROSION CONTROL NOTES CS1 SITE - DEMOLITION CS2 SITE - GRADING AND STAKING CS3 SITE - PIPING C1 HYDRAULIC PROFILE C2 WASTE SETTLING BASIN - PLAN C3 WASTE SETTLING BASIN - SECTION C4 WASTE POLISHING BASIN - MODIFICATIONS C5 DECHLORI NATION FACILITY CS SOLIDS PUMP STATION AND VAULT DETAILS C7 SAND BEDS C8 SAND BED UNDERDRAIN PUMP STATION D1 EROSION CONTROL D2 MISCELLANEOUS DETAILS D3 MISCELLANEOUS DETAILS D4 MISCELLANEOUS DETAILS Si STRUCTURAL DETAILS AND NOTES E1 ELECTRICAL SITE PLAN E2 BASIN - SETTLING/SOLIDS - ELECTRICAL INSTALLATION E3 UNDERDRAIN/METERS/DETAILS ELECTRICAL E4 DECHLORINATION FACILITY - ELECTRICAL ES ONE LINE DIAGRAM - ELECTRICAL EC ELECTRICAL DETAILS RECORD DRAWING MAY 2018 xrz ac-� INDICA TES RECORD DRAWING INDICATES INFORMATION VOID INFORMATION LEVA TION STA TION ELEVATION XYZ ABC REVISIONS: 0 a 4 w H 4 d Z 2 d [r� W uJ [r -1®r,� flaw .. 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POINZ IN DITCH(PO) -� I I ❑ I 1 I 1 1 I 1 20' NEAR YARD SETBACK I o I I I z I 1 a I Z I w I PROPOSED A z ROCK SILT Q I C) CHECK DAM � a I � w r c z ONE w 0 REVISIONS: a 0 a L7 L7 n n IviI Cll cr 67 d G U L6 C G w .� PROPOSED ` ROCK SILT u w cn q CHECK DAM m -------_ '' a x c m ©� U � /7 47 J ry N co LO 40 U co Q -C N N a C) cc U Z r co N "= In > jl W C cq a sq 1+11111t►►'►►► t►►t111111111,, RECORD DRAWING MAY 2018 xYz J xyz INDICATES RECORD DRAWING INDICATES INFORMATION VOID INFORMATION ELEVATION 5-D' STATION ` ELEVA T1ON xYr ASC f�R....... r MAY 3, 2018 SURVEY - DRAFT JIM DESIGN GSIGC CHECK GSIGC PROJECT No. 2015020 DRAWING No. W-3642 SCALE: AS NOTED SHEET No. OF ZQ CS3 REVISIONS: n EXISTING 0 4 VERFL 0 W EL. 166. 5' HWL EL. 165.00' 0 cc cj L WL EL. 1 29.00 w 0 ELEVATED50 _... 50 49 49 48 47 47 w 46 46 oc II I 45 8" MOV-1 {p/CJ 45 44 II M EXISTING HOLDING BASIN " 44 I I 43 rM 43 I TOP EL. 42.0' t 42 II , OVERFlpW/ I TOP LEVEL AT ALL FOUR 42 HWL TELESCOPING VALVE CORNERS 1 ❑. 01 ' "^ 41 EL, 40.50' TOP EL. = 34.18' 41 „Z s 40 __ __._ FLOOR EL. = 20.13' 40 NO SLOPE IN FLOOR 39 39 38 II 14.05' DEPTH (ALL) 38 !I I I 37 I I 37 36 36 I I I iT 35 35 II TOP EL. 34.18' 34 I I DECHLORINATION 34 Q 33 3 11 ❑ _HWL EL. 33.0' FEED BUILDING, 33 (1� 32 { I II 32 �J 0 II 31 31 I i II MWL PROPOSED II II I p EL.29.17' Q COMPOSITE 30 30 E! 29.5' -- - —' _.._ 12"MOV-4 {p/CJ SAMPLER 2� U ---- 7 $" MOV-5 {FCVJ 20 28 11 II 12" MOV-2 {0/C) 12" MOV-3 jFCVJ rn EXISTING Z 28 ii RAW WATER 28 27 II GRADE M I -� MAINS 252' 27 .Et.26.0' I � 2626 0 25 - L WL I2" SUPERNATE/DECANrEFFLUEN25 UJ ___.__. -I ❑ EL. 24.00' - - CL ,EL 24.25 - EFFLUENT l SAMPLE EFFLUENT r0 24 24 II TO T - - - rI rI MrCOTTER CANAL J 23 ii 5Y.STEM II �; .12" IL JI L �`1 I`l 23 22 1Q" CL E! 21.3' 12" — — — INV EL. 21.1' 22 ❑ II I- E EL. 22.1' P1 BACKWASH 21 0 WASTE DRAIN FLOOR EL. 20.13' J 20 EXISTING Cc ............_...........,� 18 1s WASTE POLISHING DECHLORINATIDN $ RGP 18 �1] 17 BASIN METER INJECTION (� 16 (EXISTING HOLDING BASIN) 17 Z 10" CE EL I5.5#'E%ftafto VAULT VAULT 16 J 15 METER - - 1 5 14 VAULT s" sptrDs sticrroN 14 13 WASTE SETTLING 13 Q 12 BASIN 11 12 SEE PROFILE BELOW (Yj Q 12" EFFLUENT FLO W 8YPASS � QL U 6"FILTRATE FM LIQUID TRAIN 6" DRAINLINE TO SOLIDS PUMP co m � n 49 L J _ LV L7 i 49 c 48 48 F- m 47 47 U a z � � O M 46 46 0 c N 16 45 OVERFLOW/ - 45 ¢ CO 44 TELESCOPING 44 ' LO 06 .`° N � 43 VALVE 43 v N TOP EL. 42. 0' c 42 w L) r�i 42 HWL ? -T 41 EL. 40.50' 4 i °i Lv 40 -- __ . - 40 N W 39 39 n r m LO 38 38 G N 37 3736 - 36 �0� ��ryr,•. 34 _ _ _ a� : �aF �S 33 33 31 31 i, C •fiNG j �F �;�`• Z �: 30 TOP EL 29.00' TOP EL 29.00' 3029 29 28 28 FF_ 27 27 �= ESI•''•%y ' TOP EL 26.00' 2fi - 26 25 _ _ 25 = P ............ _.... _........................... _............._.................................... 6, S0LrD5 FM 24 MJ 23 22 DRAIIV 22 J '�rh r n i u++►� 21 21 20 _ — ---CHECK 20 Z Z0®Q© ©QQ �.�] 19 MAY 3, 2018 19 50CID5 VAC VE 18 PUMP STATION SAND BEDS VAULT 1s 17 b" SOLIDS SUCTION 17 SOLIDS TRAIN SURVEY -CRAFT Jl M 16 SEE 1fi DESIGN GSJGC CHECK GSIGC 15 ABOVEILE I0 �! EL 15.5±' 20" _ . .--- 15 PROJECT No. 2015020 14 UNDERDRAIN 14 DRAWING No. W-3642 13 PUMP STATION WASTESETTLING i2 SCALE: AS NOTED 12 BASIN 11 SHEET No. OF 20 1 - - - I c I 11 W TP I _ �I I I �I 'y it If ii II APPENDIX i WWTP Outfall and Diffuser Plan Sheets PUBLIC SERVICES DEPARTMENT CITY OF HAVELOCK, NORTH CAROLINA WASTEWATER TREATMENT PLANT EXPANSION AND NEUSE RIVER OUTFACE CONTRACT 2 EFFLUENT FORCE MAIN AND CASCADE AERATOR EDGECOMBE 0 TARBORO � 54 t 13 MARTIN � � r 64 1NILLIAMSTOI *PLYMOUTH 258 - S H I N G TON 33 13 17 171 PITT Tf 32 45 254 REENVILLE40 WASHINGTON GRE N 264 99 SNOW HILL ` 33 BEAUFORT 258 y r 17 I 1 70 KINSTON 306 BAYBOR❑ IR CRAVEN i 11 258 58 41 E•BER ` PAMLIC❑ TRENTON 306 JONES f 41 58 a 70 LQCA ON MAP 17 HAVELOCK rr 111 + ONSLOW r �r"-`�-- 101 258 JACKSONVILLE 10 5 0 5 10 20 SCALE IN MILES VICINITY MAP CLIENT: CITY OF HAVELOCK PUBLIC SERVICE DEPARTMENT CONTACT: BILL EBRGN PHONE #: 252-444-6416 ADDRESS: ONE GOVERNMENTAL DRIVE, HAVELOCK, NC 28532 E-MAIL: BEBRONC7HAVELGCKNC.US CONFORMED DRAWINGS �4RP ORNV'6� '� NOVEMBER 2012 fIAZEN AND SAMER Environmental Engineers & Scientists 4011 WestChase Blvd, Raleigh, North Carolina 27607 License Number: C--0381 /N CARn� e¢D��S51D,y�r9 �0 AS 'C rC0p a29� z �'Enr D NEUSE RIVER ry - �F� RQ RIVER FARM � ❑UTFALL o` I, LDC,A'EION m'' L r SLOCUM RD vl � �• - `'tip r�� 3 70 MICAS CHERRY POINT HAVELOCK WWTP 101 70 NOT TO SCALE LOCATION MAP NOTICE THESE CONTRACT DOCUMENTS HAVE BEEN REVISED TO REFLECT CHANGES AND REVISIONS INCLUDED IN ALL ADDENDA. THESE REVISED DOCUMENTS ARE SOLELY FOR THE CONVENIENCE OF THE OWNER, ENGINEER, AND CONTRACTOR, AND ARE NOT WARRANTED TO BE COMPLETE AND ACCURATE IN ALL RESPECTS. REFERENCE SHALL ALWAYS MADE TO THE ORIGINAL BID DOCUMENTS AND ADDENDA FOR RESOLUTION OF CONFLICTS AND CLARIFICATIONS. 20130228 140P \\HSRAL—SERVE R\Projects\30906\30906-012\drowings\4utFolI P1peline\Gen\3N06-012 Coversheet.dwg By.00AV1S Last Sowd By. ddovis XREFs= ..\Misc\Ycinity Mop,.,\Alisc/Locction Asap MCAS FUEL DEPOT WWTP - Cr-13 C`74 C-16 C-17 C-18 C-19 Cl�w V r Y-• f • • - • 1' ��r- t T ■r C~� G SLOCUM RD AIRFIELD AREA MCAS WWTP Ir - �- NOTES: . ' 1. BASE ACCESS SHALL ONLY BE THROUGH ENTRANCE GATES AS ALLOWED BY THE CHERRY POINT MARINE CHERRY POINT MCAS CORP AIR STATION. NO ACCESS ONTO THE BASE SHALL BE ALLOWED FROM THE NEUSE RIVER OR ENTRANCE GATE - � SLOCUM CREEK, ifry�f `� r � � ,�.. ROOSEVELT BLVD s �_�- _.m;: - _ ----- r � MADISON DR GENERAL NOTES ABBREVIATIONS 1. IF SHOWN, EXISTING UTILITIES ARE DRAWN ACCORDING TO GIS RECORDS AND ARE 14. ALL ITEMS THAT ARE REMOVED AND REPLACED OR DISTURBED DURING 24. UNLESS OTHERWISE SHOWN THE MINIMUM CLEARANCE BETWEEN PROPOSED AND PE PLAIN ENO ST STREET SHOWN FOR GENERAL INFORMATION ONLY. CONTRACTOR TO LOCATE ALL UTILITIES CONSTRUCTION ARE TO BE REPLACED WITH EQUAL OR BETTER QUALITY THAN THE AL ALUMINUM CF CUBIC FEET HORZ HORIZONTAL EXISTING UTILITIES AT CROSSING SHALL BE 1$". PERP PERPENDICULAR 5TA STATION A MINIMUM OF 2500' IN ADVANCE OF THE PIPELINE EXCAVATION TO DETERMINE ORIGINAL. APPROX APPROXIMATE CI CAST IRON HPT HIGH POINT PP POWER POLE STD STANDARD EXACT SIZE, DEPTH, LOCATION OF ALL UTILITIES WHETHER SHOWN OR NOT SHOWN. ASPH ASPHALT CL CENTER LINE HWY HIGHWAY 25. BE ADVISED THAT NC ONE CALL DOES NOT PROVIDE LOCATING SERVICES WITHIN PRV PRESSURE RELIEF VALVE 5TL STEEL 15. WHEN EXISTING UTILITY LINES ARE EXPOSED DURING CONSTRUCTION THE CO CLEANOUT HYD HYDRAULIC THE BASE PROPERTY. THE CONTRACTOR SHALL BEAR THE COST AND PSF POUNDS PER SQUARE FOOT SUP SUPPLY 2. ALL SHORING WILL BE IN ACCORDANCE WITH OSHA TRENCHING STANDARDS PART CONTRACTOR SHALL PROVIDE SUPPORT AS NECESSARY TO PREVENT DAMAGE TO B BORING CONIC CONCRETE RESPONSIBILITY TO PROVIDE A SUBSURFACE UTILITY LOCATOR FOR THE ENTIRE PS! POUNDS PER SQUARE INCH SUR SURFACE 1926, SUBPART P, AMENDED TO DATE, AND EM 385--1-1. THE EXISTING UTILITY. PROJECT. IN ADDITION TO PROVIDING LOCATION SERVICES THE CONTRACTOR SHALL BLDG BUILDING CONST CONSTRUCTION I IRON PT POINT OF TANGENT/POINT PLAN His EXCAVATIONS WELL IN ADVANCE SO THAT BASE PERSONNEL CAN BE BLK BLOCK CONTR CONTRACTOR ID INSIDE DIMENSION PV PLUG VALVE TBM TEMPORARY BENCH MARK 3. CONTRACTOR SHALL ABIDE BY ALL REQUIREMENTS OF USACOE EM 385--1-1 AS 16. ALL BENDS SHALL BE RESTRAINED VIA RESTRAINED JOINT PIPING AS SHOWN ON BM BENCH MARK CORP CORPORATION IN INCH PVC POLYVINYL CHLORIDE ADVISED AS TO LOCATIONS OF WORK. TC TOP OF CURB REQUIRED BY THE CHERRY POINT RESIDENT OFFICER IN CHARGE OF CONSTRUCTION. PLANS. BOC BACK OF CURB CORR CORRIDOR INCL INCLUDED PVMT PAVEMENT TECH TECHNICAL 26, THE CONTRACTOR IS RESPONSIBLE FOR COORDINATION WITH THE COAST GUARD BOT BOTTOM CP CONCRETE PIPE INV INVERT PW POTABLE WATERBRG BEARING TEL TELEPHONE 4. WHEN PROPOSED LINE E5 IN CLOSE PROXIMITY TO EXISTING UTILITIES, CONTRACTOR 17. ONLY PIPE AND MATERIALS THAT ARE TO BE INSTALLED WITHIN THE WORK DAY REGARDING ALL OPERATIONS WITHIN THE NEUSE RIVER CHANNEL AND SLOCUM TEMP TEMPERATURE SHALL DIG TEST PITS TO LOCATE EXISTING UTILITIES. THIS SHALL BE WELL IN MAY BE STORED WITHIN THE RIGHT--OF-WAY. MATERIAL SHALL BE BARRICADED, CREEK. CONTACT CHIEF WARRANT OFFICER JOE EDGE, COAST GUARD WATERWAYS BV BALL VALVE D DRAIN J JOIST QTY QUANTITY TOS TOP OF SLAB ADVANCE OF PIPE LAYING OPERATIONS, SO THAT THE ENGINEER/OWNER HAS SEPARATED FROM TRAFFIC, AND HAVE SIGNAGE AS REQUIRED BY MCAS AND EM MANAGER FOR SECTOR NORTH CAROLINA, AT 252-247-4DIA DIAMETER J$ JUNCTION BOX TOW TO COORDINATE TOW TOP OF WALL ADEQUATE TIME TO MAKE ANY NECESSARY RE -ALIGNMENTS OR ADJUSTMENTS 3$5-01 CB CATCH BASIN DIM DIMENSION JCT JUNCTION OPERATIONS. RCP REINFORCED CONCRETE PIPE TOL TOLERANCE WITHOUT CLAIM FOR DELAY, CE CONSTRUCTION EASEMENT DIP DUCTILE IRON PIPE JT JOINT RD ROAD/ROOF DRAIN TYP TYPICAL DISCH DISCHARGE 18. CONTRACT DRAWINGS C-1 THROUGH C-30 ARE REFERENCED TO THE NAD83 REINF REINFORCING 27. NO USE OF THE NAVY BOAT YARDS OR ANY OTHER AIR STATION ASSET WILL BE 015T DISTRIBUTION HORIZONTAL SURVEY DATUM AND NAVD88 VERTICAL SURVEY DATUM. SURVEY ALLOWED. CONTRACOTR SHALL MAKE PROV1SiON5 TO LAUNCH BARGES OR OTI�ER L LENGTH/ANGLE REM REMOVE UG UNDERGROUND 5. PIPELINE TO BE LAID ON CONSTANT GRADE (FLAT, UP, OR DOWN) TO AVOID HIGH DWG DRAWING LF LINEAR FEET REOD REQUIRED UTIL UTILITY SPOTS BETWEEN AIR RELEASE VALVES. MIN THREE (3.0) FEET OF COVER UNLESS PROVIDED BY SANBORN UTILIZING MARCH 24, 2007 PHOTOGRAMMETRIC 3D FEATURE EQUIPMENT FROM LOCATIONS FROM OUTSIDE THE AIR STATION. LG LONG REST RESTRAINED SHOWN OTHERWISE. COLLECTION METHODS. EXISTING CONTOUR MAPPING WAS REFERENCED TO NCGS EL OR ELEV ELEVATION LP LIGHT POLE RR RAILROAD VAC VACUUM SECOND ORDER CLASS 11 VERTICAL CONTROL STATION "GATEWAY 1984' WITH THE 28. ALL MANHOLES ON THE CHERRY POINT MARINE CORPS AIR STATION SHALL BE ELEC ELECTRICELECTRICAL LIT LOW POINT RT RIGHT VEL VELOCITY 6. DEFLECT PROPOSED PIPE AS NECESSARY. DO NOT EXCEED 75% OF NGVD 1929 ELEVATION OF 23.99' AND NAVD 1988 ELEVATION OF 22.96'. CONSIDERED CONFINED SPACE ENTRY AND SHALL BE BOUND BY ALL REQUIREMENTS ENGR ENGINEER RW RAW WATER OF EM385-1-1. VERT VERTICAL MANUFACTURERS RECOMMENDED DEFLECTION. ENT ENTRANCE MH MANHOLE R/W RIGHT OF WAY VOL VOLUME 19. SUBSURFACE INFORMATION SHOWN ON DRAWINGS WAS TAKEN FROM GEOTECHNICAL ENT EDGE OF PAVEMENT MIN MINIMUM 7. DRAWINGS REFLECT ALL PROPOSED AND TEMPORARY EASEMENTS. EASEMENTS WILL EQPT EQUIPMENT MISC MISCELLANEOUS VENT VENTILATING VENTILATION REPORT PROVIDED AS AN APPENDIX IN THE CONTRACT AND 15 SHOWN FOR 29. FOR THE PURPOSES OF REQUIRED EXCAVATION AND EXCAVATION SUPPORT ON THE 5AN SANITARY VERT VERTICAL BE PROCURED BY THE OWNER. LEGAL DEFINITIONS AND EXACT LOCATION AND CONTRACTORS CONVENIENCE. THE INCLUSION OF THIS INFORMATION ON THE CHERRY POINT MARINE CORPS AIR STATION BE ADVISED THAT THE CHERRY POINT EX OR EXIST EXISTING MJ MECHANICAL JOINT SBL SURVEY BASELINE VOL VOLUME DIMENSIONS OF ALL EASEMENTS WILL BE MADE AVAILABLE UPON CONTRACTOR'S CONTRACT DRAWINGS DOES NOT EFFECT STANDING OF INFORMATION AS DESCRIBED MARINE CORPS AIR STATION ROICC AND PROJECT INSPECTORS WILL CONSIDER ALL MW METERING WELL SCH SCHEDULE REQUEST. IN THE GENERAL AND SUPPLEMENTAL CONDITIONS. SOILS TO BY TYPE C AS DEFINED IN EM385-1-1. FF FINISH FLOOR SD STORM/SITE DRAIN W WITH FH FIRE HYDRANT NA NOT APPLICABLE SECT SECTION W/L WATER LINE 8. ALL CONCRETE AND ASPHALT DRIVEWAYS TO BE SAW CUT AND REPAIRED. 20. CONTRACTOR SHALL VERIFY EXACT MATERIALS, LOCATION, ELEVATIONS, DIMENSIONS, FIN FINISH NIC NOT IN CONTRACT SERV SERVICE W/0 WITHOUT AND LAYOUT OF EXISTING PIPING TO BE CONNECTED TO PRIOR TO ORDERING FLG FLANGE NO NUMBER SEW SEWER WP WATERPROOF 9. CONTRACTOR IS TO REPLACE DAMAGED DRIVEWAY CULVERTS WITH SAME SIZE RCP. MATERIALS OR COMMENCING CONSTRUCTION. FM FORCE MAIN NOM NOMINAL SF SQUARE FEET WPFG WATER PROOFING NEW DRIVEWAY CULVERTS MUST BE MINIMUM 15' RCP. FT FEET NPW NON POTABLE WATER WPT WALL PENETRATING TYPE 21, CONTRACTOR SHALL PROVIDE A MEANS TO KEEP ALL PIPING ISOLATED AND FREE NTS NOT TO SCALE SHT SHEET WT WEIGHT 10. CONTRACTOR TO PROVIDE ADEQUATE SUPPORT FOR POWER POLES. COMPACT FROM DIRT OR DEBRIS DURING CONSTRUCTION. UPON COMPLETION OF G GAS/GAS LINE SI SQUARE INCH WV WATER VALVE TRENCH FIVE (5) FEET EACH SIDE OF POWER POLES TO 95%-98% STANDARD INSTALLATION THE CONTRACTOR SHALL CLEAN AND PRESSURE TEST THE PIPELINE GAL GALLON OC ON CENTER SIM SIMILAR PROCTOR. AS REQUIRED BY THE SPECIFICATIONS PRIOR TO THE CITY OF HAVELOCK ACCEPTING GV GATE VALVE OD OUTSIDE DIAMETER SS SANITARY SEWER YD YARD THE PIPELINE FOR SERVICE. GW GUY WIRE OVHD OVERHEAD SST STAINLESS STEEL YR YEAR 11. PROVIDE TRAFFIC CONTROL, BARRIERS, TRENCH COVER, AND ALL ELSE REQUIRED 22 CONTRACTOR SHALL MAINTAIN ACCESS TO AFFECTED PROPERTIES AT ALL TIMES TO PERFORM THE WORK IN ACCORDANCE WITH NCDOT, MUTCD, AND MCAS STANDARDS. DURING CONSTRUCTION, LEGEND 12. RESTORE ALL DRIVES, FENCING, PAVEMENT, AND GRASSED AREAS TO THEIR 23. THE LIMITS OF CONSTRUCTION ARE DEFINED BY THE EDGE OF THE PROPOSED MATERIALS SYMBOLS LINETYPES DETAIL KEYING ORIGINAL CONDITION AND MAINTAIN UNTIL FINAL ACCEPTANCE OF THE PROJECT. EASEMENT, A PROPOSED TREELINE OR SILT FENCE BEYOND THE EASEMENT, OR A LIMIT OF CONSTRUCTION LINE; WHICHEVER IS FARTHEST FROM THE PROPOSED ��� 13. REASONABLE EFFORTS SHALL BE MADE BY THE CONTRACTOR TO MINIMIZE REMOVAL FORCE MAIN. �/��//� GRADE OR EARTHROCK NEW AIR RELEASE NEW WATER MAIN ow SILT FENCE STANDARD DETAILS ARE REFERENCED BY A OF LARGE TREES AT THE EDGES OF CONSTRUCTION CORRIDORS, VALVE ASSEMBLY UNIQUE SEVEN DIGIT NUMBER AND ARE SHOWN EXIST. WATER LINE TREE PROTECTION ON THE CONTRACT DRAWINGS BY ONE OF THREE DRAWING INDEX ASPHALT PAVING STEEL ��� NEW VALVE FENCE METHODS: SS EXIST, SANITARY SEWER NEW ITEMS DWG SHEET DWG SHEET DWG SHEET SAND INSULATION EXIST. VALVE 1509203 - REFERENCED ITIE� �- --SD-EXIST. STORM DRAIN EXISTING ITEMS OR: COVER COVERSHEET C-15 STATION 140+00 TO 146+00 CASCADE AERATOR GRAVEL WATER SURFACE EXIST, FIRE HYDRANT -CFERENCED !TE] X-1 INDEX AND GENERAL NOTES C-16 STATION 146+00 TO 170+00 M-1 SITE PLAN `� OHF''- - - - EXIST. OVERHEAD ELECTRICAL ----------- - HIDDEN ITEMS SEE 1509203 X-2 WETLAND CONSTRUCTION REQUIREMENTS C-16P STATION 146+00 TO 158+00 M-10 PLAN �' CONCRETE GRATING EXIST. SAN. SEWER MH ICE - EXIST. UNDERGROUND ELECTRICAL ' ' ' ' "" "' DEMOLITION ITEMS OR: C-16P2 STATION 158+00 TO 170+00 M-11 SECTION �1 C-1 STATION 0+00 TO 10+00 C--17 STATION 170+00 TO 180+50 S-1 GENERAL STRUCTURAL NOTES DETAIL X/DX REFERENCED ITE� C-2 STATION 10+00 TO 20+00 C-18 STATION 180+50 TO 190+00 S-10 PLANS CONIC. FILL OR GROUT ,�� ,�,;,y� CHECKERED PLATE � EXIST POWER POLE �1GT _ _ EXIST. UNDERGROUND TELEPHONE - - CENTER LINE C-3 STATION 20+00 TO 22+00; 32+00 TO 40+00 C-19 STATION 190+00 TO 200+00 S-11 SECTIONS �v C--4 STATION 22+00 TO 32+00 C-20 STATION 200+00 TO 211+00 S-12 SECTIONS AND DETAILS ® --UGC- EXIST. UNDERGROUND COMM. f PROPERTY LINE/ROW C-4P STATION 22+00 TO 32+00 C-21 STATION 211+00 TO 220+00 CONC. MASONRY UNIT SLOPE MATTING CO >> EXIST. SS CLEANOUT C-5 STATION 40+00 TO 50+00 C-22 STATION 220+00 TO 230+00 STANDARD DETAILS C-6 STATION 50+00 TO 60+00 C-23 STATION 230+00 TO 240+00 D-1 MISCELLANEOUS DETAILS --- -,EXIST. GAS EASEMENT BOUNDARY C-7 STATION 60+00 TO 70+00 C-24 STATION 240+00 TO 250+50 D-2 MISCELLANEOUS DETAILS BRICK WETLAND B-1 SOIL BORING/AUGER PROBE C-8 STATION 70+00 TO 80+00 C-25 STATION 250+50 TO 260+00 D-3 MISCELLANEOUS DETAILS FCC--- EXIST. FIBER OPTIC -- CONCRETE CURB C-9 STATION 80+00 TO 90+00 C-26 STATION 260+00 TO 270+00 D-4 MISCELLANEOUS DETAILS ® SEDIMENT LOG FIBER SR SEISMIC LINE C-10 STATION 90+00 TO 100+00 C-27 STATION 270+00 TO 275+42 D-5 MISCELLANEOUS DETAILS INLET PROTECTION FILTRATION TUBE - EXIST EDGE OF PAVEMENT LOC LIMITS OF C-11 STATION 100+00 TO 109+00 C-28 STATION 271 +00 TO 260+00 D-6 MISCELLANEOUS DETAILS 0 INLET PROTECTION CONSTRUCTION C-12 STATION 109+00 TO 120+00 C-29 STATION 280+00 TO 290+00 D-7 MISCELLANEOUS DETAILS rr FIBER FILTRATION TUBE FOC FIBER-OPTIC CABLE MARKER C-13 STATION 120+00 TO 130+00 C-30 STATION 290+OD TO 296+44 D-8 MISCELLANEOUS DETAILS EXIST GROUND PROFILE C-14 STATION 130+00 TO 140+00 D-9 MISCELLANEOUS DETAILS RIP -RAP NCDOT_.-R/W NC DOT - CREEK DITCH RIGHT-OF-WAY DESIGNED SDL THE SCALE ,\y\ CAROB N CARp� PUBLIC SERVICES DEPARTMENT SHOWN BELOWR DATE IVOVEMRER 2012 DRAWN EwN -�°���F�S '°� � ° �F��S'°�, �-y CITY OF HAVELOCK, NORTH CAROLINA 24" EFFLUENT FARCE MAIN MEASURES ONE NUMBER 30906-012 < EN ANDSAWYER CHECKED SEAL INCH LONG ON CONTRACT DRAWING 2D756 029g Environmental Engineers & Scientists THE ORIGINAL 3 CONFORMED DRAWINGS 02 13 HTT PROJ. ENGR. HTT ,y �NGINEE� �j I _ C� 4011 WestChase Blvd, Raleigh, North Carolina 27607 INDEX AND GENERAL NOTES DRAWING_ NUMBER NUMBER 2 ISSUED FOR BIDDING 11 2012 SDL - T Pam' �,� License Number: C-0381 HAVELOCK 111 WTP EFFLUENT FORCE MAIN 2 X-1 1 REGULATORY APPROVAL 01 /2012 SDLr y'OM A S 'E'EN D �l 1� NO. ISSUED FOR DATE BY APPROVED 701AW9A VAnP IXHSRAI-SFRVFR\Pr in fA-ingnA\ i69C16-019\drnwin A0,,l lull drra By DIWAS lest Saved Rv ddo,k XRFFs= 1M C„,;o Z Q a w Q 0 U ■ EFFLUENT PUMP STATION (BY OTHER) 12eFF FM {BY OTHER} � 1 � � I ' I N, G � � SEE TE 2 0 STA 0+21 PROPOSED 90' BEND _ �. t 450 SF 18" DEEP CLASS B X RIP -RAP WITH FILTER FABRIC -'- BENEATH, KEYED -IN O r E , STA 1+74, A` � PROPOSED ARV ASSEMBLY 15r79419 PROPOSED TREELINE, TYP - STABILIZED OUTLET FOR w, SILT FENCE, TYP eou aJ& ,� Ae alp: 0 EXISTING 8° Fog6E M IN STA 6+73 _ ... 0 SEE NOTE 1 D 3 PROPOSED 724"/45' BEND�ti. ' CITY OF HAVELOCK �- WASTEWATER TREATMENT PLANT +00 8+00 ' _, -f ; + 0 10 �� -- - ; _.1 — —-.E------- — — — S =ry _7777 --- --- --- -- owl! I OVA Ilk il 0 f 20' CITY OF HAVELOCK �r� r xD PERMANENT UTILITY EASEMENT, TYP � - STA' . +85 PROPOSED ARV ASSEMBLY - U - -�---- - LIMITS OF CONSTRUCTION, TYP F SEE NOTE-,.4 a �` �� SILT FENCE;" TYP 1509419 + TREE PROTECTION FENCE, TY 0227033R Q� H 1,050 SF 18' DEEP CLASS B - - - -� RIP —RAP WITH FILTER FABRIC - �A_ I CI 9z PROPOSED "24 ~t BENEATH,. —IN .� �` •. .._ _...�� C.� X E,FFLUENT FORCE MAIN, TYP �YED___ W qx WETLAND, TYP = p- + r SEE NOTE fi J24. z, h ¢ w AiL I STA 3+68 ,PROPOSED 24'_,.s 90' BEND PLAN 1 u=40' NOTES: 1. CONTRACTOR SHALL LOCATE EXISTING FORCE MAIN PRIOR TO EXCAVATION. LOCATION OF EXISTING FORCE MAIN IS APPROXIMATE. 2. COORDINATE W/ CONTRACT 1 CONTRACTOR FOR CONNECTION TO CONTRACT 1. CONTRACT 1 IS REFERENCED TO NGVD 29. CONTRACTOR 2 IS REFERENCED TO NGVD 88. 3. CONTRACTOR SHALL LOCATE EXISTING UTILITY AT CROSSING POINT WITH PROPOSED FORCE MAIN WELL. IN ADVANCE OF PIPELAYING TO VERIFY THAT MINIMUM CLEARANCE REQUIREMENT WILL BE MET. 4. LOCATION OF AXU MAYBE SHIFTED TO AVOID CONFLICT WITH EXISTING FORCE MAIN. HOWEVER, ARV MUST BE AT HIGH POINT. 5. THE CONTRACTOR SHALL INSTALL THE PROPOSED MAIN BEGINNING AT THE FENCE LINE. FURTHERMORE, THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ANY NECESSARY PIPE OR FITTINGS REQUIRED TO TEST THE PIPELINE INSTALLED UNDER CONTRACT NO. 2. THE CONTRACT NO. 2 CONTRACTOR WILL NOT BE REQUIRED TO MAKE THE FINAL CONNECTION TO THE PIPING INSTALLED UP TO THE FENCE BY CONTRACT NO. 1, 6. SEE WETLAND CONSTRUCTION REQUIREMENTS ON X-2. 7. USE EXTREME CAUTION IN CROSSING EXISTING FORCE MAIN. HAVE REPAIR CLAMPS ON -SITE SIZED FOR EXISTING FORCE MAIN. :: �'� son .. -.....�..�� ...�.r... ..rrrrrrr.■rr�:�rrrrrrr.rrrrrrr ■rrrrrra rrrr.r�rri� rwrrrr��rfr� rrirtrtirrila rrr�rrrrrrrr rrrtrl •�� - ... r������ ���i♦I♦� �1•���®��® ����� � �� t�wt11111a•>� �;:��� �;,s�ttttats � �,.�� 0+00 1 +00 2+00 3+00 4+00 5+00 6+00 DESIGNED SOL CA/? N CAf? DRAWN EWN of E551 �4 �¢ <� 9r EN AND AWYER CHECKED SEA SEAL Environmental Engineers & Scientists � 3 CONFORMED DRAWINGS 02 13 HTT PROJ. ENGR. HTT e.NGIN��� ��113 s� INa �s�E�4 �C? 4011 WestChase Blvd, Raleigh, North Caraiin❑ 27607 2 ISSUED FOR BIDDING 11 2012 SDL Q License Number; C-0381 1 REGULATORY APPROVAL 01 2012 5DL 'y0 A NO. ISSUED FOR DATE BY APPROVED" 20130228 3.41P \\H SRAL- SCR VER\Pro jec t s\30906\309 06-012\drawings\0utfoil P1peline\Civi1jC-01,dwg By.00AMS Lost Saved By ddovis XRCFs= ..\00_Civi! Base\C-P-force Main ... \00_Civil Bose\C-X-Pipe'..100_Ciw Bose\C-x-Topo --- \00-Civil Bose\C-x-site_\ao_CiW Base\C-P-Site,..\Titleblack\30906-012TB,../00_Civii Bose\C-P-EC 7+00 8+00 PUBLIC SERVICES DEPARTMENT CITY OF HAVELOCK, NORTH CAROLINA HAVELOCK WWTP EFFLUENT FORCE MAIN 10 5 _5 —10 10+00 24" EFFLUENT FORCE MAIN PLAN AND PROFILE STATION 0+00 TO 10+00 oatA MUST L i T Y pR� oc�Q�o BEFORE You DIGI CONTACT ONE-cA . CENTER 1- 00-632r-4949 PROFILE VERTICAL 4 2 0 4' 11=4'-011 HORIZONTAL 40 20 0 40' 0 1 "=40'-0' Z THE SCALE BAR DATE NOVEMBER 2012 SHOWN BELOW H & S JOB MEASURES ONE NUMBER 30906-012 w INCH LONG ON CONTRACT DRAWING M THE ORIGINAL NUMBER NUMBER Q DRAWING. 2 C-1 U_ PAVEMENT REMOVAL AND REPLACEMENT- d7 W U Z :3 =o zw 3 DESIGNED SDI DRAWN EWN CHECKED— Xf PROJ. ENGR. HTT 3 CONFORMED DRAWINGS 02 13 HTT 2 ISSUED FOR BIDDING 11 /2012 SDL 1 REGULATORY APPROVAL. 01 2012 SDL NO. ISSUED FOR DATE BY APPROVED x 4 110 - N\_ FENCE; TYP 4 CONNECT TO HORIZONTAL TA) 275 42. PR'OPI -__ DIRECTIONAL DRILL AT HDPI , US 45� Bb STA 275+42f LIMITS OF CONSTRUCTION, TYP,� 1T \ \ \1 PROPOSED TREELINE, TYP CASCADE AERATION EXISTING 6" W AERATOR SEE NOTE 3 (DWG M- 01 AND M-10) ._._ 1 1 1 STA 275+25 PROPOSED 24' 90' BEND .4 DIRECTONAL DRI TEMPORARY CONSTRUCTION BORE PATH EASEMENT zz el" 3 I CAR9�, ram, ��oF ES51p��r �� SEAL 029r PLAN 1 "=40i Z1 BUFFERS t Z2 BUFFERS SEE SHEET C-28 NEUSE RIVER SHORE LINE rJ MARCH 24, 2010 WSE=-0.9 h x f EN AND SAWYER Enviranmentai Engineers & Scientists 4011 WestChase Blvd, Raleigh, North Carolina 27607 License Number! C-0381 SEE DETAIL 1/D--6 FOR Di TO HDPE TRANSITION *SEE NOTE 4 DETAIL PIPING LAYOUT VIEW N TS PUBLIC SERVICES DEPARTMENT CITY OF HAVELOCK, NORTH CAROLINA HAVELOCK WWTP EFFLUENT FORCE MAIN HDPE THRUST COLLAR W/ CONCRETE HDPE FUSED (ANGLE AS REQUIRED) 30" EFFLUENT FORCE MAIN L STA 275+42f HDPE FUSED 45' BEND 24" EFFLUENT FORCE MAIN PLAN AND PROFILE STATION 270+00 TO 275+42 NOTES: 1. THE LUMP SUM BID FOR THE CASCADE AERATOR SHALL INCLUDE ALL WORK WITHIN THE CASCADE AERATOR FENCE, FENCING, GRADING, THE GRAVEL DRIVE, AND ALL PIPING DOWNSTREAM OF THE CASCADE AERATOR TO THE CONNECTION TO THE HORIZONTAL DIRECTIONAL DRILL. 2. ALL PIPING DOWNSTREAM OF CASCADE AERATOR UP TO AND INCLUDING CONNECTION TO HDPE SHALL BE RESTRAINED JOINT. 3. CONTRACTOR SHALL LOCATE EXISTING UTILITY AT CROSSING POINT WITH PROPOSED FORCE MAIN WELL IN ADVANCE OF PIPELAYlNG TO VERIFY THAT MINIMUM CLEARANCE REQUIREMENT WILL BE MET. 4. STA 275+25 TO STA 275+50, COORDINATE EXACT LOCATION AND CONFIGURATION OF BEND, ADAPTERS, AND THRUST COLLAR IN THE FIELD WITH THE ENGINEER. \04 MUST c NO TY �, AOD ROTF� � o BEFORE YOU DIGi CONTACT ONE-C,ALI, CffiiTER I-900-632-4949 THE SCALE BAR DATE NOVEMBER 2012 SHOWN BELOW H & S. ,LOB MEASURES ONE NUMBER 30905-012 INCH LONG ON CONTRACT DRAWING THE ORIGINAL NUMBER I NUMBER DRAWING. I 2 I C-27 (D Z_ Q W 0 0 U 20130228 4:04P \\HSRAL—SERVER\Projects\30906\30906-612\drowings\0utfoll Pipe1ine\C1vi1\C-27.dwg By.66AVIS Lost Saved By. ddavis XREFs= ..\00—Civil Base\C—P—Force Mah_\00_Cm1 Base\C—X—Pipe,..\00_0vl Base\C—X—Topo,..\TitleblockVO906-012TB,.-\CO—Civil Base\C—X—Site I_\00—Civil Base\C—P—EC LIMITS OF CONSTRUCTION, TYP 27*22 273+00 CASCADE AERATOR (DWG M-1 AND M-10) 274+00 -�" FENCE, TYP 0227D33R —SILT..FENCE, l� OZ�7DDD TYP + � N nl zl� —SEE DWG C�,27 !ti 4 z!41 [w 141 HDPE AT S�AI `275+ T2 BUFFERS Z1 BUFFERS SE RIVER SHORE LINE 278+00 10 I STA 275+42t+00 APPROXIMATE HDPE FIXED 45• AND x 280 00 BORE ENTRY POINT BEND AS REQUIRED SEE NOTE 1 } - •� `�' HORIZONTALLY DIRECTIONALLY DRILLED . DRII HDPE EFFLUENT FORCE MAIN 77RO OS� PROPOSED TREELINE, TYP PROPOSED SILTI FENCE, TREE PROTECTION FENCE, TYP AN ' D2270DD D227D33R 1 "=401 BORE HOLE, ENTRY ANGLE TBD BY HDD CONTRACTOR 25 f 10 I i _......._....-........... ...._....... .._._........ �_....._...-. _. .-.. .- - -- - - -- - I ......_.-.- ............ ...J_..._..._. ...--.......... ..- ..- —_ — .-.. _ .._. .. i 20 _...-. 5 f .-....-....._..._-._-._..__.W.}.-.__.........-... .-......._ -...._ 4 I __..__..._. __.. _.-...,_.,_.._ _....-.-.....-..........-......--..._-.....-......-......-_..._........-.-,......-......--..-....-.-......-.......-.....-..... - - _ - O (Ili+l RELCNE t A APR TE 5H } f_...._-. - _...... _._. ......_........ _ _ _ _. - I — _JSTA 277+ 3f I i s i i s ' ' II ..... _...-.._.. ........ ........... _- .-....-.-_.iAPPROXIN At _.........-.-............... ..--...... .......... -..... - .... ._.. _.. ....- - + I 15 I , -- ..-. i I E E �kTIOI� Q ' SL i �V € i T .�.......... �...............-_...... .- ....._ .. _._.. ...._..... ... .—...... _ ._.-._._.. .......... _.-.... ........w.._•_.....-._.. 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I i � I _ _ 25 _-. _ - _-- _... _-_ _ o - _ I I J ---- --� — _..._ -. . _I . _._......._..... _... -- - _ - _ ...- .. - - -- -- - -r-- a._ i , • , i , , i 15 M_.#!tt-30 _._ I � I I 1 � i I W 1 � H RI ZQN � LLY Di E -� IO kEf ate..:-._ .... ` �..�. � .- _ _ _ _ T _ a _ _ ._ - _ - _ t3 ILLf}D O T F f� �FFI,�UEN , ORE Ii� -_ -20 f = , t.._ 35 ..APR XI . A 1' BELOW °RI R __t _.B..T.r, .�_�. , ,,� W 1Q .I . ._._...._............ _.... �— --- - l T ___. i -25 .-. , i iQ ...... _..........._--'._...-.__-!.-......_.....-..........._.-...._......_.........._.-.- ......_.- __ ...... __ T i --40 _ i _ _ _ _. __ .._. _._ ._-� .. _...._.-.-... _............- -_. .. _� ._ -..... _- .............._. - , ' I -30 _ 45 , ............ ................ I---- - _ ...- -- -. .......... _ ---_.....__.. - _._ ..__ ___m _ i... 1_...... _ -- � - - �_.. - - - -- - - �. __._ E s � c j - - 35 - 50 271+00 272+00 273+00 274+00 275+00 276+00 277+00 278+00 279+00 280+00 DESIGNED SOE CRRp�A \ CARge DRAWN EWN � of E551o,y 'yy � aF �SS/p� 'yam a�ffiZEN ANDSAWYER CHECKED SEAL Environmental Engineers &Scientists 3 CONFORMED DRAWINGS 02 13 HTT PROJ. ENGR. HTT �¢ ,� 3I►%3 Lp a2 �� �� 4011 WestChase BIvd, Raleigh, North Carolina 27607 2 ISSUED FOR BIDDING 11 2012 SDL GINS P p GrN� �\ License Number: C-0381 1 REGULATORY APPROVAL 01 2012 SDL I AS �E D • �' r o NO. ISSUED FOR DATE BY APPROVED 13'[ 20130228 4:W \\HSRAL-SERVER\Projects\30906\30906-D12\drowings\MtfolI Pipeline\Cia1\C-28.dwg By.00AAS Lost Saved By. ddavis XREFs= ..\00_Civ11 Sase\C-P-Force Moin,,.\00_Civi1 Base\C-X-Pipe_. 00-Civil 8ose\C-X-Topo,.-\TilleOiock\30906-012TB... \00-Civil 8ase\C-X-SiRe,..\00_Ciw1 Bose\C-P-EC PUBLIC SERVICES DEPARTMENT CITY OF HAVELOCK, NORTH CAROLINA HAVELOCK VI WTP EFFLUENT FORCE MAIN 24" EFFLUENT FORCE MAIN PLAN AND PROFILE STATION 275+42 TO 280+00 NOTES: 1, STA 275+25 TO STA 275+50, COORDINATE EXACT LOCATION AND CONFIGURATION OF BEND, ADAPTERS, AND THRUST COLLAR IN THE FIELD WITH THE ENGINEER. -OW MUST ,jZILITY PR, r c � n BEFORE YOU DIGZ CONTACT ONE -CALL CENTER 1-800-6324949 Z THE SCALE BAR DATE NOVEMBER 2012 SHOWN BELOW H & S JOB MEASURES ONE NUMBER 30906-012 W INCH LONG ON CONTRACT DRAWING M THE ORIGINAL NUMBER NUMBER ir 0 DRAWING. r� C-28 0 Z Q rr M 0 LU m cr 0 LL Z a 0 20130228 4:06P \\HSRAE-SERVER\Projects\30906\30906-U1"l\drowing5\0uifall Ppeline\L;ml\C-29.dwg tSYUUAVIS lost saveu Uy ddaws XKLVr = ..\UU-Ciwi dcse\G-F-rorce Mo+n,..>,00-Civil BoseNC-X-Pipe,..\UO_Civfl Bose\C-X-Topo,..\Titleblxk\30906-012TB 5 0 -5 -10 --15 -20 -25 -30 -35 -40 -45 r t , 290+00 291 +00 292+00 293+00 294+00 295+00 296+00 297+00 j' 298+00 0 0 co CN�F¢- U) CD 1CV 1 w V z� �3 U a QLLJ w En PLAN HORIZONTALLY 30" DIRECTIONALLY DRILLED DR II HDPE EFFLUENT FORCE MAIN 27 END OF DIFFUSI�R N: 444698 E: 2636077 M1 Ell M1 IN IN IMIM ........... po MIMI IN 1M WIN! 10111111111111111 ME W M MIMI MIMI IN Al iMIMI I .PAPIMMI MAIN IN iME 00 3 CONFORMED DRAWINGS 2 ISSUED FOR BIDDING 1 REGULATORY APPROVAL NO, ISSUED FOR 291 +00 292+00 Cni DESIGNED DRAWN EWN CHECKED PROD. ENGR. HTT 29A =7 02/13 HTT 11 2012 SDL 01 2012 SDL DATE BY APPROVED 293+00 /�\ell CARp�i A, 371�3 �yOMAS 294+00 CAR9 �SSlpyl f�`9 a SEAL 9r 02999,E pyEl� p 295+00 296+00 ffiZEN AND SAWVER Environmental Engineers & Scientists 4011 WestChase Blvd, Raleigh, North Carolina 27607 License Number: C-0381 297+00 298+00 PUBLIC SERVICES DEPARTMENT CITY OF HAVELOCK, NORTH CAROLINA HAVELOCK WWTP EFFLUENT FORCE MAIN 299+00 5 0 —5 —10 —15 -20 —25 -3o —35 —40 —45 300+00 24" EFFLUENT FORCE MAIN PLAN AND PROFILE STATION 290+00 TO 296+44 Z1�N MUST C 411LITY p c, cam. �o z n BEFORE YOU DIGY CONTACT ONE -CALL CENTBR. 1-800-632-4949 THE SCALE BAR DATE NOVEMBER 2012 SHOWN BELOW H & S JOB MEASURES ONE NUMBER 30906-012 INCH LONG ON CONTRACT DRAWING THE ORIGINAL NUMBER NUMBER DRAWING, 2 C-30 20130228 4i0l` \\HSRAL—SERVER\Projects\30906\30906-012\drawin gs\eut fell Pipeline\CM1\C-30.dwg By.00AMS Last Saved By. dd"s XREFs= ..\OO—Civil Bose\C—P—Force Main, - -NOD—Civil 8ose\C—X—P1pe... \00—Civil Base\C—X—Topo,..\Titleblock\30906-012TB,-.\OO_CMI Bose\C—X—Site 12" SPEC CHAP SIDE: DRIVI BATE RIVER 3 CONFORMED DRAWINGS 02 13 HTT 2 ISSUED FOR BEDDING 11 2012 SDL 1 REGULATORY APPROVAL 01 2012 SDL NO. ISSUED FOR DATE BY DESIGNED EWN DRAWN SDL CHECKED PROD. ENGR. HTT APPROVED �N CARp�i 20 s �T� NGf NEE �P�y~ j 113 A S 20130228 4:09P \\HSRAL—SERVER\Projects\30906\30906-012\drawings\0ut fell Pipeiine\SQetoNl \0-9.dwg ByDDAV1S Last Soved By. ddavis XREFs=.-Vitleblock\30906-012TB,.,\00_CMI Base\C—DC DISCHARGE DIFFUSER HEADER DETAIL N TS D-9 ffiZEN AND SAWYER Environmental Engineers & Scientists 4011 WestChase Blvd, Raleigh, North Carolina 27607 License Number: C-0381 PUBLIC SERVICES DEPARTMENT CITY OF HAVELOCK, NORTH CAROLINA HAVELOCK WWTP EFFLUENT FORCE MAIN NORMAL WATER MISCELLANEOUS DETAILS 2D T SERIES FLANGED 6' HDPE DiFUSSER id LB FLANGE BOTTOM (APPROX. —12-) _T W/ SST HARDWARE ED WITH LOCKING THE SCALE BAR SHOWN BELOW MEASURES ONE INCH LONG ON THE ORIGINAL DRAWING. DATE NOVE=MBER 2012 H & S JOB NUMBER 30906-012 CONTRACT DRAWING NUMBER NUMBER 2 1 D-9 APPENDIX K WWTP Daily Monitoring Reports Summary Havelock WWTP Daily Monitoring Reports Summary (2021 - 2022, Select Data) Effluent Min Day Max Day Flow Flow Flow Total Cu Total Zn Month Year MGD) (MGD) (MGD) (u /I u /I 11 2020 1.581 1.260 3.334 ns ns 12 2020 1.659 1.352 2.252 ns ns 1 2021 1.684 0.351 2.535 5 ns 2 2021 1.998 1.553 3.224 ns ns 3 2021 1.520 1.359 1.839 ns ns 4 2021 1.282 1.100 1.543 7 ns 5 2021 1.131 1.039 1.338 ns ns 6 2021 1.648 1.168 2.270 ns ns 7 2021 1.385 1.148 2.360 10 ns 8 2021 1.593 1.146 3.176 ns ns 9 2021 1.098 0.792 1.352 ns ns 10 2021 1.026 0.916 1.359 10 ns 11 2021 1.008 0.909 1.184 ns ns 12 2021 1.091 0.905 1.557 ns ns 1 2022 1.357 1.068 2.102 7 ns 2 2022 1.229 1.071 1.399 ns ns 3 2022 1.227 1.048 1.756 ns ns 4 2022 1.215 1.035 1.576 ns ns 5 2022 1.081 0.993 1.236 6 ns 6 2022 0.989 0.888 1.173 ns ns 7 2022 1.342 0.930 2.697 6 ns 8 2022 1.249 1.009 1.632 ns ns 9 2022 1.231 0.954 3.003 ns ns 10 2022 1.145 0.913 1.878 57 ns MIN MONTH 0.989 0.351 1.173 5 MAX MONTH 1.998 1.553 3.334 57 AVERAGE 1.324 1.038 1.991 14 EFFLUENT LIMITS Monitor ns = No Sample APPENDIX L WWTP NPDES Discharge Permit ROY COOPER Goverwx MICHALL S. REGAN 5e, retw .k S. DANIEL SMITH Df I%Mr Sue Sayger, Public Services Director City of Havelock PO Box 368 Havelock, North Carolina 28532 Dear Ms. Sayger- r NORTH CAROLINA Environmental QuoUiy April 13. 2020 Subject: Final NPDES Permit Renewal Permit NCO021253 Havelock WWTP Craven County Grade 1V Biological WPCS SIC Code 4952 Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES pen -nit, This permit is issued pursuant to the requirements of North Carolina General Statute 143-215. l and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). No changes were made to the draft permit sent to you on February 12, 2020. The final permit maintains the following significant changes identified in the letter sent on February 12, 2020: • LTpon completion of authorized construction in 2015, the Havelock WWTP entered the 2.25 MGD flow tier. As such, Effluent Limitations and Monitoring Requirements for the 1.9 MGD flow tier have been removed from the permit. • Upon completion of authorized construction relocating the outfall to the Neuse River Estuary with a diffuser in 2015, all references to Outfall 001 to East Prong Slocum Creek have been removed from the permit. • For compatibility between the Division's and USEPA's databases and the eDMR electronic reporting system, communicated to the City of Havelock via a -mail in April 2016, the Neuse River Estuary outfall designation has been changed from Outfal l 001 to Outfal1002. • As it is no longer in use, the lime addition system has been removed from the facility's components list [See Supplement to Permit Cover Sheet]. • Regulatory citations have been added to the permit. D North Carolina t)epdrtrnenI of Lnvironmcntal Quahr} Divislnn of Water ltetource. E Q 9121dnrth Sallshurn Street thll Mail Serwce Center Raleigh. North CaarCGlina 2ib99 lhll 7/�� ctM1079000 • Parameter codes have been added to the Effluent Limitations and Monitoring Requirements for each flow tier [See Sections A. (l) — A. (3.)] as well as to the Effluent Pollutant Scan special condition [See A. (8)]. • Based on Division guidance regarding the reduction of monitoring frequencies in NPDES permits for exceptionally performing facilities, monitoring requirements for A nmonia-N (NH:-N), Total Suspended Solids (TSS). and Enterococci have been reduced to twice per week [See Sections A. (i .) — A. (3)1 • In accordance with Division guidance regarding the reduction of monitoring frequencies in NPDES permits for exceptionally performing facilities, a footnote has been added to the Effluent Limitations and Monitoring Requirements sheets specifying that 2/week sampling shall be conducted on two non-consecutive days within a week [See Footnote ; in Sections A. (L) — A. (3.)]. • Based on Mercury TMDL evaluation showing fewer than two mercury values reported at levels > 1 ng/L, the Mercury Minimization Plan (MVP) special condition has been removed from the permit, • The City of Havelock reported Total Silver at less than detection, with detection levels < 5.0 µgfL in the Effluent Pollutant Scans, The City's allowable discharge concentrations are 0.69 pg/L at 2.25 MGD, 0.64 }ig/L at 2.8 MGD, and 0.61 ug/L at 3.5 MGD for Total Silver. DWR's laboratory identifies the target Practical Quantification Limit (PQL) for Total Silver as L0 µg/L. 15A NCAC 2B .0505 (e) (4) requires that all test procedures must produce detection and reporting levels that are below the permit discharge requirements and all data generated must be reported to the approved detection level or lower reporting level of the procedure. if no approved methods are capable of achieving a detection level below the permit discharge requirement (or allowable discharge concentration), the method with the lowest detection level must be used. The Town should use sufficiently sensitive test methods for all pollutants, including when performing Effluent Pollutant Scans. • Based on the reasonable potential analysis (RPA) showing no reasonable potential to violate state water quality standards, the monitoring requirement for Total Zinc has been removed from the permit [See Sections A. (L) — A. (3.)]. • To provide guidance for instream monitoring of nutrients and Chlorophhyll-cr, a note has been added to the Instream Monitoring Requirements special condition describing depth integrated sampling and defining the Photic Zone [See Section A. (4.)]. • Some of the wording has changed in Special Condition A, (7.), Chronic Toxicity Permit Limit including that to allow for electronic submittal. Please review each paragraph carefully. • Special Condition A. (8.) has been modified to include the specific three years in which the Effluent Pollutant Scan shall be performed (2021, 2022, and 2023), and to allow for electronic submittal. In addition, at the end of the Special Condition, 2"1 species Toxicity Testing Requirements for municipal permit renewals per Federal Regulations [40 CFR 127.21(j)(5)] have been added. • To ensure that the facility can meet the TN load limits upon expansion to the 2.8 and 3.5 MGD flow tiers, a special condition has been added for an Authorization to Operate to be issued for each flow expansion based the Pen-nittee's demonstration that the TN limits can be met to the Division's satisfaction. [See Special Condition A. (11.)] • Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The requirement to continue reporting discharge monitoring Page 2 of 3 data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application has been added to the permit [See Special Condition A. (12.)]. • As the facility no longer discharges to East Prong Slocum Creek-, the permit map has been modified to remove reference of the East Prong Slocum Creek outfall and its coordinates. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699- 6714). unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require rnodification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or Local governmental regulations. If you have any questions concerning this permit, please contact Gary Perlmutter at (919) 707- 361 I or via entail at gary.perlmutter@ncdenr.gov. Sincerely, G't- etDaniel S it ,IZtotor ivision of Water Resources, NCDEQ Hardcopy: NPDES Files Central Files DWR/Washington Regional Office/Water Quality/Robert Tankard eCopy: US EPA Region 4 DWR/Operator Certification Prograntfhlaureen Kinney DWR/Ecosystems Branch/Mark Vander Borah DWR/Aquatic Toxicology Branch/Hanna Headrick Page 3 of 3 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of North Carolina General Statute 143-2 15. I, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, the Cite of Havelock is hereby authorized to discharge wastewater from a facility located at the Havelock W WTP 304 North Jackson Drive Havelock, NC 28532 Craven County to receiving waters designated as the Neuse River in the Neuse River Basin in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts 1, 11, 111, and IV hereof. This permit shall become effective May 1, 2020. This permit and the authorization to discharge shall expire at midnlyflit on June 30, '1024. Siuned this day April 13, 2020- tt, Permit NCO021253 SUPPLEMENT TO PERMIT COVER SHEET Ali previous NPDES Permits issued to this facility, whether for operation or discharge, are hereby revoked, and as of this issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms and provisions included herein. Cite of Havelock is hereby authorized to: 1. Continue to operate an existing 2.25 NIGD wastewater treatment facility consisting of the following components: • Manual bar screen and grit removal systems • Influent composite sampler • Influent pump station • Distribution box • Two (2) 840.000 gallon first stage aeration basins with fine bubble aeration • Two (2) 150,000 gallon second stage aeration basins with coarse bubble aeration • One (1) 190.000 gallon second stage aeration basin with coarse bubble aeration • Final clarifier pump station • 7,500 gallon storage tank and chemical additive systems for polyaluminum chloride • Distribution box • Two (2) 65 feet diameter final clarifiers • 7,500 gallon storage tank and chemical additive system for methanol • Three (3) 7,500 W multimedia denitrifying filters • UV disinfection system + One (1) reaeration basin with dual mechanical agitation + Denitrification filters backwash pumps • One (1) filter backwash waste detention tank • Effluent flow meter • Effluent composite sampler • Effluent pump station with force main • Post gravity cascade aerator • 2,036 feet outfall pipe with 80 feet multipart diffuser • One (1) waste solids holding tank • Gravity belt thickener • Solids stabilization tank, pumps, basin, truck loadout This facility is located at Havelock WWTP, 304 North Jackson Drive, Havelock, in Craven County. Pa-e 2 of 10 Permit NCO021.233 2. Upon receipt and in accordance with an Authorization to Construct (AtC) to expand above 2.25 N4GD to 2.8 NIGD and upon submittal of a signed Engineering Certificate, and upon approval of .Authorization to Operate (AtO) from the Division according to Special Condition A. (10.). construct and operate a 2.8 MGD treatment facility with the following minimum additional components. • New 570,000 gallon three -stage BNR treatment train • New nitrification recycle pump station • New final clarifier pump station and distribution box 3. Upon receipt and in accordance wtih an AtC permit to expand above 2.8 MGD to 3.5 MGD and upon submittal of signed Engineering Certificate, and upon approval of an AtO from the Division according to Special Condition A. (10.). constrict and operate a .3.5 MGD treatment facility with the following; minimum additional components: • New manual bar screen • New 180,000 gallon past -anoxic process train to increase BNR to five -stages • New 65 feet diameter final clarifier • New 7,500 ff3 multimedia denitrifying filter + New solids storage and dewatering filters AtC requests along with the n-inimum additional components shall be submitted to the address below': NC DWR/NPDES Permitting Attn: AtC Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 4. Discharge from said treatment works through existing Outfall 002 into the Neuse River, a Class SB-Swamp, NSW water in the Neuse River Basin, at the location specified on the attached map. PaLye 3 of 20 Permit NC00212�3 PART i A. (1.) EFFLUENT LMTATIONS AND MONT1TORILNG REQUIREMENTS (2.25 MGD) [15.A NCAC 02B .0400 et seq., 15A NCAC 05B .0500 et seq.] Grade iV Biological Water Pollution Control System [ 15A NCAC 08G .0a02] a. Beginning on the effective date of this permit and 1aSting until expansion above 2.25 N1GD or expiration, whichever happens first, the Permittee is authorized to discharge 2,25 MGD of treated wastewater from Outfall 002 through a submerged multiport diffuser into the Neuse River. Such discharges shall be limited and monitored' by the Permittee as specified below; EFFLUENT CHARACTERISTICS EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Parameter Code Monthly weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location Flow (MGD) 50050 2.25 Continuous Recording I or E Total Monthly Flow SiilO Monitor and Report Monthly Recorded or I or E (MG/mo} 3 Calculated 60D; 5.0 mg/L 7.5 mg/L Daily Composite I, E (April i —October 31) CO3I0 SODS' 10,0 mg/L 15,0 mg/L Daily Composite I, E (November 1 — March 31) Total Suspended Solids (TS5) C0530 30.0 mg/L 45.0 mg/L 2/week = Composite I, E Ammonia as N (Nis-N) C0160 1.0 mg/L 3.0 mg/L 2/week 5 Composite E Dissolved Oxygen (DO) 00300 Daily Average - 5,0 mg/L Daily Grab E Enterococci 61211 35/100 mL 276/100 mL 2/weeks Grab E (geometric mean) pH 00400 Between 8.5O and &8 S.U, Daily Grab E Temperature (°C) 00010 Monitor and Report Daily Grab E TKN E (mg/L) 005251 Monitor and Report Weekly Composite E NO2-N + N0 -N 6 (mg/L) 006301 Monitor and Report Weekly Composite E Total Nitrogen (TN) (mg/L) C0 00 Monitor and Report Weekly Composite E TN Load QA1600 Monitor and Report(lb/month) Monthly Calculated E QY600 21,400 Ib/yr Annually Total Phosphorus (TP) C0665 2.0 mg/L (quarterly average) ° Weekly Composite E Total Copper (pg/L) 01042 Monitor and Report Quarterly Composite E Chronic Toxicity ° TG,03E Quarterly Composite E Effluent Pollutant Scan IVC01 Footnote 10 E Scc Footnotes nc%t paec. Page 4 of 20 Permit NCO021753 Footnotes: 1. The Purmittce shall submit discharge monitoruig reports electronically using NC DWR-s eDMR application: see Section A. (12.). 2. 1 = Influent. E = Effluent. See special condition A. (4.) for instrcam monitoring requirements and conditional NRaixer. 3. Total i�fonthlN Floe and Total Nitrogen are required to calculate TN Load. See special condition A. (5.) for calculation and reporting requirements. 4. The monthIN a%eraQe BODE and TSS concentrations shall not exceed 15 of the respective influent .alue (85% removal). 5. Sampling 2/week must occur on am' two non-consecutive days during the; calendar wock 6. For a given w astcwater sample. TN = TKN + (NO;-N + NO_-N). vnccrc TN is Total Nitrogen, TKN is Total Itjeldahl Nitrogen. and (NO;-N y- NO,-N) is Nitrate + Nitrite, respectively. 7. Compliance �%itli this limit shall be determined in accordance with special condition A. (6). 8. TP quarterl\ limit is based on membership in the Lo%\er Neuse: Nutrient Compliance Association. Tennination of membership will automatically assign 1.0 ntg/L as the TP monthh limit. The calendar quarters are January -March. April -June. Jule -September. and October -December, 9. Whole Effluent Toxicity will be monitored using the Pass/Fail Mi-slclopcis hohia at 1 {% effluent. Samples shall be taken in Jaen oty, April. duly and OcInher; see Section A, (7.). 10 The Pcrmittec shall perform three Effluent Pollutant Scans during the term of this permit: sec Section A. MY b. There shall be no discharge of floating solids or visible foam in other than trace amounts. c. See Section A. (11.) if chlorine or a chlorine derivative is utilized Page 5 of 20 Permit NC00212� 3 A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (2.8 MGD) [15A NCAC 02B .0400 et sect., 15A NCAC 05B ,0500 et sect.] Grade IN Biological Water Pollution Control System [I SA NCAC 08G ,0302] a. Beginning upon receipt of the signed Engineer's Certification and the issuance of the Authorization to Operate for expansion to 2.8 MGD, and lasting until expansion above 2.8 MGD or permit expiration. whichever comes first, the Permittee is authorized to discharge 2,8 MGD of treated wastewater from Outfall 002 through a submerged multiport diffuser into the Neuse River. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Parameter Code Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location 1 Flow (MGD) 50050 2,8 Continuous Recording 1 or E Total Monthly Flow 82120 Monitor and Report Monthly Recorded or I or E (MG/mo) ' Calculated SQD:' 5.0 mg/L 7.5 mg/L DaNy Composite I, E (April ? —October 33) CC7310 BOD5' 10.0 mg/L 15.0 mg/L Daily Composite I, E (November 1 _ March 31) Total Suspended Solids (TSS) C0530 30.0 mg/L 45.0 mg/L 2lweek= Composite i, E Ammonia as N (NHt-N) C0160 1.0 mg/L 3.0 mg/L 2/weeks Composite E Dissolved Oxygen (DO) 00300 Daily Average > 5.0 mg/L Daily Grab I E Ernterococci 61211 35/100 mL 276/100 mL 2/week Grab E (geometric mean) pN 00400 Between 8.50 and 6.8 S.U, Daily Grab E Temperature (°C) 00010 Monitor and Report Daily Grab E TKN £ (mg/L) 00625 Monitor and Report Weekly Composite E NO2-N + NO3-N E (mg/L) 00630 Monitor and Report Weekly Composite E Total Nitrogen (TN) E (mg/L) C0500 Monitor and Report Weekly Composite E TN Load = QM500 Monitor and Report (lb/month) Monthly Calculated E QY600 , 21,4t10 tb/yr Annually Total Phosphorus (TP) C0665 2.0 mg/L (quarterly average) Weekly Composite E Total Copper (pg/L) 01042 Monitor and Report Quarterly Composite E Chronic Toxicity TGP3E Quarterly Composite E E1r7uent Pollutant Scan NC01 Footnote 10 E Sce Footnotes no t Page. Page 6 of 20 Permit NC00212-- Footnotes, I. The Permittec shall submit discharge monitoring reports electronically using NC DWR's eDNIR application. see Section A. (12.), 2, 1 = Influent, E = Effluent. See special condition A. (-1,) for instrcam monitoring requiremcins and conditional %%aixer. 3. Total Monthl, Flo« and Total Nitrogen are required to calculate TN Load. See special condition A. (5.) for calculation and reporting requirements, 4. The monthlN a%erage BODs and TSS concentrations shall not exceed 15% of the respecth a influent N alue W'� (- removal)- 5. Sampling 2/n-cek must occur on any two non-eonsecutivc; da,-s during the calendar creek. 6. For a given wastewater sample. TN = TKN + (NO;-N + NO_-N ). where TN is Total Nitrogen. TKN is Total Kjeldahl Nitrogen. and iNO:-N + NO--N) is Nitrate + Nitrite. respcctivel-, 7. Compliance N%ith this limit shall be determined in accordance aith special condition A. (6). R. TP quartedy limit is based on membership in the Lo«er Neuse Nutrient Compliance .Association. Termination of membership \sill automatically assign 1.0 mg/L as the TP n}onthls limit. The calendar quarters are January -March. April -Jude. Jule -September, and October -December, 9. Wbole Effluent Toxicity will be monitored using the Pass/Fail <Wvsidopsi.s hahia at 16% effluent. Samples shall be taken in January, April. Jule and October.- see Section A. (7,), 10 The Pcrmittce slW1 perform three Effluent Pollutant Scans during the term of this permit: sec Section A. MY b. There shall be no discharge of floating solids or i isible foam in other than trace amounts, c See Section A. (1 1.) if chlorine or a chlorine derivative is utilized. Pave 7 of 20 Permit NCO0212 3 A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (3.5 MGD) [15A NCAC O2B .0400 et seq., 15A NCAC O5B ,0500 et seq.] Grade IN' Biological Water Pollution Control System [ I5A NCAC 08G .0302] a. Beginning upon receipt of the signed Engineer's Certification and the issuance of the Authorization to Operate for expansion to 3.5 NIGD and lasting until permit expiration, the Permittee is authorized to discharge 3.5 MGD of treated wastewater from Outfall 002 through a submerged multiport diffuser into the Neuse River, Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Parameter code Monthly Weekly Daily Measurement Sample Sample Average Average Maximum Frequency Type Location Flow (MGD) 50050 3.5 Continuous Recording I or E j Total Monthly Flow ' 82220 Monitor and Report Monthly Recorded or or E (MG/mo) Calculated BODS' (Apr i i — October 31) C0310 5.0 mg/L 7.5 mg/L Daily Composite t, E 3ODs' (November 1 — March 31) 10.0 mg/L 15.0 mg/L Daily Composite I, E Total Suspended Solids CTSS) ., C0530 30.0 mg/L 45.0 mg/L 2/week = Composite t, E Ammonia as N (NH;-N) CO160 1.0 mg/L 3.0 mg/L 2/week 5 Composite E Dissolved Oxygen (DO) 00300 Daily Average > 5,0 mg/L Daily Grab E Enterococci 61211 35/100 mL 276/100 mL 2/week Grab E (geometric mean) pH D0400 Between 8.50 and 6.8 S.U. Daily Grab E Temperature (°C) 00010 Monitor and Report Daily Grab E TKN a (mg/L) 00625 Monitor and Report Weekly Composite E NOz-N + N01-N " (mg/L) 00630 Monitor and Report Weekly Composite E Total Nitrogen (TN) s. (mg/L) CO600 Monitor and Report Weekly Composite E TN Load QM600 Monitor and Report (lb/month) Monthly Calculated E QY600 21,400 lb/yr 7 Annually Total Phosphorus (TP) CO665 2.0 mg/L (quarterly average) e Weekly Composite E Total Copper (pg/L) 01042 Monitor and Report Quarterly Composite E Chronic Toxicity 9 1 7G'P3E Quarterly Composite E Effluent Pollutant Scan I NCO! Footnote 10 E Scc Footnotes mcart pa,-,Q. Pave 8 of 20 Permit NC002125 3 Footnotes: 1, The Permitter shall submit discharge monitoring reports electronically using NC DWR's cDMR application: sce Section A. (12.). 2. 1 = hifluent. E = EftIucut, See special condition A. (4.) for instrcatn monitoring requirements and conditional «ai%er. 3. Total Monthh Flog and Total Nitrogen are required to calculate TN Load. See special condition A. (5_) for calculation and reporting requirements. 4. The monthl\ a-,erage BOD, and TSS concentrations shall not exceed i 5l% of the resl)ecti\,e influent value (85% removal). 5. Sampling 2/weck must occur on any two non-consecutive days during the calendar week-. 6. For a given \\astewater sample. TN = TKN + (NO.,-N + NO2-N). where TN is Total Nitrogen. TKN is Total Kjcldahl Nitrogen. and (NO,-N + NO--N) is Nitrate -Nitrite. respectively. 7. Compliance %%ith this limit shall be determined in accordance with special condition A. (6.). &. TP quartcrh limit is based on membership in the Lo\\cr Neuse Nutrient Compliance Association. Termination of membership .ill automaticalh assign 1,0 mg/L as the TP monthly limit. The calendar quarters are January -March. April -.tune. Jule -September. and October -December. 9. Whole Effluent Toxicity will be monitored using the Pass/Fail Mrsidopsi.s bahia at 16%effluent. Samples shall be taken in .later aq, ,I p I4 July and October, sce Section A, (T). 10, The Pcrniittec shall perform three Efilucnt Pollutant Scans during the term of this permit: sec Section A. (9.), b. There shall be no discharge of floe ing solids or visible foam in other than trace amounts. c. See Section A. (11.) if chlorine or a chlorine derivative is utilized. Pa,ge 0 of 20 Permit N C 002 12,; ; A. (4.) LNSTREA_M11111ON1TORING REQb?1RENIENTS [NCGS 143-21s.1(b)] a. Tnstream monitoring is required for the following parameters and locations while discharging via a diffuser into the Neuse River. No provisional waiver is applicable; S 1 = upstream 10 feet (approximately ?,076 feet offshore, perpendicular to diffuser center), S? = downstream 10 feet (approximately 2,076 feet offshore, perpendicular to diffuser center), S3 = within 10 feet beyond the end of the diffuser and in line with the diffuser. EFFLUENT CHARACTERISTICS SAMPLE TYPE MEASUREMENT FREQUENCY Dissolved Oxygen (mg/L) Vertical (1 meter increments) Weekly (April - October) Monthly (November - March) Temperature (°C) vertical (1 meter Increments) Weekly (April - October) Monthly (November - March) Salinity (%o) Vertical Weekly Monthly (1 meter increments) (April - October) (November - March) pH (S.U.) Vertical Weekly N/A (1 meter increments) (April - October) Enterococcl (;F/100 mL) Surface Weekly (April - October) Monthly (November - March) Secchi Depth (m) Photic Zone 2/Month (June - September) N/A TKN (mg/L) Depth integrated 2/Month N/A (use composite sampler) (June - September) Chlorophyll -a (mg/L) Depth integrated 2/Month N/A (use composite sampler) (June - September) N0� N + N0;-N (mg/L} Depth integrated (use composite sampler) 2/Month (June - September) N/A NHS-N (mg/L) Depth integrated 2/Month N/A (use composite sampler) (June - September) Totaf Phosphorus (mg/L) Depth integrated 2/Month N/A (use composite sampler) (June - September) Note: Depth integrated samples shall be composites taken throughout the water column within the Photic Zone (2x the Secchi Depth). Samples collected 2/month shall be taken concurrently With 11reekly samples. Page 10 of 20 Permit NC0021253 A. (5.) CALCULATION OF TOTAL NITROGEN LOADS [NCGS 143-215,1(b)] a, The Permittee shall calculate monthly and annual TN Loads as follows'. (i.) Monthly TN Load (lbhno) = TN x TNIF X 8.34 where: TN = the average Total Nitrogen concentration (mg/L) of the composite samples collected during the month TMF = the Total Monthly Flow of wastewater discharged during the month (MG/month) 8,34 = conversion factor. from (mg/L x MG) to pounds (ii.) .annual TN Load (lb/yr) = Sung of the 12 .Monthly TN Loads for the calendar year b. The Permittee shall report monthly Total Nitrogen results (tng/L and pounds/month) in the appropriate discharge monitoring report for each month and shall report each year's results (pounds/year) with the December report for that year. A. (6.) ANNUAL LIMITS FOR TOTAL NITROGEN [NCGS 143-215 1(b)] a. Total Nitrogen (TN) allocations and TN Load limits for NPDES dischargers in the Neuse River basin apply on a calendar year basis. b. For any given calendar year, the Permittee shall be in compliance with the annual TN Load limit in this Permit if: (i.) the Permittee's annual TN discharge is less than or equal to its TN Load limit, or (ii,) the Permittee is a co-permittee member of a compliance association. C. if the Permittee is not a co-permittee member of a compliance association and the Permittee's cumulative annual TN discharge exceeds the effective TN Load limit in this permit at any point during the calendar year, the Permittee is in violation of its TN Load limit, and each day of a continuing violation shall constitute a separate violation. d. The TN Load limit in this Permit (if any) may be modified as the result of allowable changes in the Permittee's TN allocation. (i.) Allowable changes include those resulting from purchase of TN allocation from the Wetlands Restoration Fund; purchase, sale, trade. or lease of allocation between the Permittee and other dischargers; regionalization; and other transactions approved by the Division, (ii,) The Permittee may request a modification of the TN Load limit in this Permit to reflect allowable changes in its TN allocation. Upon receipt of timely and proper application, the Division will modify the permit as appropriate and in accordance with state and federal program requirements. (iii.) Changes in TN limits become effective on January 1 of the year following permit modification, The Division must receive application no later than August 31 for changes proposed for the following calendar year. Page 1 1 of 20 Permit NCO02 L2s • (iv.) Application shall be sent to: NC DWR/NPDES Permitting Attn: Neuse River Basin Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 e. if the Permittee is a member and co-permittee of an approved compliance association, its TN discharge during that year is governed by that association's group NPDES permit and the TN limits therein. (i.) The Permittee shall be considered a Co-Permittee Member for any given calendar year in which it is identified as such in Appendix A of the association's group NPDES permit. (ii,) Association roster(s) and members' TN allocations will be updated annually and in accordance with state and federal program requirements. (iii.) If the Permittee intends to join or leave a compliance association, the Division must be notified of the proposed action in accordance with the procedures defined in the association's NPDES permit. (A) Upon receipt of timely and proper notification, the Division will modify the permit as appropriate and in accordance with state and federal program requirements. (B) Membership changes in a compliance association become effective on January 1 of the year following modification of the association's permit. f. The TN monitoring and reporting requirements in this Permit remain in effect until expiration of this Permit and are not affected by the Permittee's membership in a compliance association. A. (7.) CHRONIC TOXICITY" PERMIT LIMIT (Quarterly) [15A NCAC 02B .0200 et seq] The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to,11s,sidopsis hahia at an effluent concentration of 15% at 2.25 MGD, 16% at 2.8 MGD, and 16% at 3.5 MGD. The permit holder shall perform at a minimum, quarterly monitoring using procedures described below to establish compliance with the permit condition. The tests will be performed during the months of January, April, July, and October. These months signify the first month of each three-month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit limit, then multiple -concentration testing shall be performed (at a minimum) in each of the two following months as described in EPA Method 1007.0, Mysid, Mysidnpsis hahia, Sun°ival, Growth, and Fecundity Test, as described in Short-Terin Methods .for Estimating the Chronic Tovicih.- of Effluents and Receiving Waters to Marine and Estuarine Organisms, Third Edition, la PA821-R-02-014, October 2002, The test procedure will be based on EPA Method 1007.0, Mysid, M.vsidoNsi.s bahicr, Survival, Growth, and Fecundity Test, as described in Shorn-1 corm Methods for Emimafing the Chronic Ybxicilt of kffluen1.s Page 12 of 20 Permit NC002125 3 and Receiving 0aters to Marine and Estuarine Organisms, 17rird Edition, EPA-82 t-R-02-014, The procedure will be performed as written with the following exceptions: • The test treatments will consist of a control and a 15% at 2.25 MGD, 16% at 2.8 MGD, and 161% at 3.5 NIGD effluent concentration ("pass/fail"), or a control and five effluent concentrations, one of which will be 15% at 2.25 MGD, 16% at 2.8 MGD. and 16% at 3.5 MGD and one of which will be (1/2 the IWC) 7.5% at 2.25 MGD, 8% at 2.8 MGD. and 8% at 3.5 MGD. • Mortality for pass/fail tests will be evaluated using the t test described in Section 11.3 inlblethods fin -measuring the Acute Turirin cif Eff7ucrrfs to T reshwater and Marine Orgrarris»rs. Fifth edition, EPA-82 I -R-02-012, October 2002, applying an alpha level of 0.05. • The growth endpoint for pass/fail tests will be determined using Appendix G of Vwrt-lerrrr Hethmis.for Estimating the Oironic Toxicin, c?f Effluents and Receiving Waters to Marine and E- swarine Organisms, I'hir•d Edifio r, EPA-821-R-02-014, October 2002, applying an alpha level of0.01. • Mortality and growth endpoints for multiple -concentration tests will be determined using hypothesis testing as described in EPA Method 1007.0, Mysid, 11ty.sidopsis balria, Survival, Growth, and Fecundity Test, as described in Short-Terrrr kfethod.3 Jbi- E-10inating the C'hrrnric Toxicity, of Effluents and Receiving Waters to Marine and Estuarine Organisms, Third Edition. EPA-82 I-R-02-014.October 2002, • Fecundity will not be evaluated. Al I toxicity testing results required as part of this permit condition will be entered electronically using the Division's eDMR system for the months in which tests were performed. For pass/fail results: report using the parameter code TGP3E and for reporting Chronic Value results use the parameter code THP3E. Aditionally, DWR Form AT-4 (original), is to be sent to the following address: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicity Branch 1621 Mail Service Center Raleigh, NC 27699-1621 Or, results can be sent to the email, ATFarms_ATB ncdenr. ov . Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/vear of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited above. Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be required during the following month. Assessment of toxicity compliance is based on the toxicity Page 13 of 20 Permit NCO021253 testing quarter, which is the three-month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival minimum control ars,anism gromb, and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Pa+ye 14 of 20 Permit NC0021253 A. (S.) EFFLUENT POLLUTANT SCAN [NCGS 143-215.4(b)] The Pernittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below. One scan must be performed in each of the following years: 2021, 2022, and 2023. Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Samples should be collected with one quarterly tonicity test each year, and must represent seasonal variation [i.e., do not sample in the same quarter every year]. Unless othemise indicated, metals shall be analyzed as "total recoverable." Ammonia (as h1) C0e10 Trans-1 2-dic-Noroe1hylere 3454E Bis (2,chlaroethyljether 34273 Chlorine (total residual 7RC) 54060 1.1-dchloroethylene 34501 his (2-chlormopropyl) ether 34283 Dissolved oxygen 00300 12-drehloroprapane CC541 B5 (2-ethythe><5rl] phtl C0t00 Nitrate I Nitrite 00630 1 3-dchloiopropylena 77163 4-bromophenyl pl eayl ether 34636 Kleldahl n,lroger 00625 Elhylbenzene 34371 Bulyl benzyi phthalate 34292 Oil and grease 00556 Methyl bromide 3013 2-chloronaphlhalene 34581 Phosphorus C069 Methyl chloride 34418 4-cfilorophenyl phenyl ether 34641 Tolal dissolved solids 70295 Methylene chloride 34423 Chrysene 34320 Hardness 0M 1 12 2-tatrachloroe.hane 81549 Di-n-butyl phthalals 39110 Antimony 01097 Tetrachlproethylene 34475 Di-n-octyl phthalate 34596 Arsenic 01K2 Toluene 34010 Dibenm(a hlanlhracene 34556 Beryllium 01012 t 1 1-Inchlo;oathane 3450E 1[,2-6chlorobenzene 34536 Cadmium 01027 112-tnchloTbethane 34511 13-dlchiorobenzere 3456E Chromium C0034 Trichloroelhylene 39180 'A-dichlorobenzene 34571 Copper 01042 Vinci chloride 39175 3 3-dich!orobenzidme 34-Vi Lead 0105i AcfdTextractable camnotmds: Dte;hyl phthalate 34336 Mercury Welhod 1631 E) COMER P-chloram cresol 34452 Dimeihyl phthalate 34341 IJIckel NOV 2-chlorophenol 34588 2.4-dinitra;oiuene 34611 Selenium 01147 2 4-chch!oropherlcl 34601 2 C0326 Silver 01077 2.4 rnethylphenol 3460E 1.2-diphany1hydrazine 3434E Thallium 01059 46-drn,lro•o-cresol 34657 Flueranthene C0375 Zinc 01092 2 4-d;ngraphenol 34616 Fluorene 34381 Cvanide 00720 2-nitrophenO 34%1 I- Eearachtorobenzene C0700 _'a chenclic compounds 32730 �I rnilrophenol 34646 Hexach!arobuladiene C0702 Volatile organic compounds. Penlachlorophenal 39(132 Hexachlorocyclapentadiene 34388 Acrolein 34210 Phanel 34%4 Hexachioroethane 3439E ACrylonitnle 34215 2.4,6,Ir,-hlorcph, rnol 34621 Indeno(1 2,3•cd}pyrene 34403 Benzene ,3 30 Haltag&p-I compounds; Isophororie 34408 Bromoform 32104 Asenaphthene 34205 Naphlhalene M96 Carbon telracr _ ,-= 32102 Acenaphthylene 34& Nitrobenzene 34447 Chlorobenzene 34301 Anihracene CO220 rl-nWM0dr-n-Prapylamine 34428 Chlcrodibremomelhane 343th Een:idine 39120 rJ-ntlrescdFrelhylamine 34438 Chloroelhane 85811 Benzo(a)anthracene C0526 1,1-nilrosodiphenylamire 34433 2-0lol I vinyl ether 34576 Benz9(a)pyrene 34247 Phenanthrene 34461 Chloroform 32106 3.4 benzo%oran;hene 34230 Pyrene 34469 DrchImbromornethare 32101 5enzo(ghi)perylene 34521 1.24-trchlorobenzene C0551 11-dichloroethane 344-c6 Benzo(k)fluoramhene 34242 1 2-dichtcroet1rane 32103 B,s (2-chloroehrnry) melmne 34278 Page 15 of 20 Permit NCOU212S3 Reporting. Test results shall be reported electronicall}' using the Division's eDMR s%stem or on DWR Fonts DMR- PPA-I (or on a form approved b\ the Director) b\ December 3 1" of each designated sainpling \ear. The Permittee must at least report completion of the test hi the cDh1R system by cntcring -V' or " Yfor parameter code NCO - Annual Pollutant Scan. If utilizing the DWR Form submit to the following address: NC D£Q/DWR/NPDES Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. Or the form ma% be uploaded at littps://edocs,deg,iie.go%/Fomis/NPDES WW-EDMR-Supplemental-Forn3 Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that Municipal facilities that are subject to the Effluent Pollutant Scan requirements listed above are also subject to additional toxicity testing requirements specified in Federal Regulation 40 CFR 122.21(j)(5). The US EPA requires four (4) toxicity tests for a test organism other than the test species currently required in this permit. The multiple species tests should be conducted either quarterly for a 12-month period prior to submittal of the permit renewal application, or four tests performed at least annually in the four and one half year period prior to the application. These tests shall be performed for acute or chronic toxicity, whichever is specified in this permit. The multiple species toxicity test results shall be tiled with the Aquatic Toxicology Branch at the following address: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Or, results can be sent to the email: ATForms.ATBL-i)ncdenr. gm,. Contact the Division's .Aquatic Toxicology Branch at 919-743-8401 for +,uidance on conducting the additional toxicity tests and reporting requirements. Results should also be summarized in Part E (Toxicity Testing Data) of EPA Municipal Application Form 2A, when submitting the permit renewal application to the NPDES Permitting Unit. Palle 16 of 20 Pormit NC0021251 A. (9.) TOTAL NITROGEN ALLOCATIONS [NCGS 143-215.4(b)] a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred to the Permittee in accordance with the Neuse River nutrient management rule (I 5A NCAC 02B ,0234) and the status of each as of permit issuance. For compliance purposes, this table does not supersede any TN timit(s) established elsewhere in this permit or in the NPDES permit of a compliance association of which the Permittee is a Co-Permittee Member. ALLOCATION AMOUNT ALLOCATION SOURCE DATE STATUS Estuary Discharge TYPE (Ib/year) (lb/year) Base Assigned by Rule 17/7/97; 21,400 21,400 Active (T15A NCAC 028 .0234) 4/1/03 TOTAL 1 21,400 21,400 Active Footnote: Transport Factor = 1005, b. Any addition, deletion, or modification of the listed allocations) (other than to correct typographical errors) or any change to Active status of any of the listed allocations shall be considered a major modification of this permit and shall be subject to the public review process afforded such modifications under state and federal rules. A. (10.) AUTHORIZATION TO OPERATE [NCGS 143-215.1(b)] a. Each increase in permitted flow beyond 2.25 MGD is further conditioned on issuance by the Director of an Authorization to Operate (AtO). In order to receive each AtO, the Permittee must demonstrate to the Division's satisfaction that it has completed treatment plant improvements. or acquired TN allocations or offset credits. and can consistently meet its total nitrogen limit at the increased flow. b. Authorization to Operate requests along with the demonstration of capability to meet TN limits shall be submitted to the address below: NC DWR/NPDES Permitting Attn; Nutrient Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 A. (11.) USE OF CHLORINATION FOR DISINFECTION [NCGS 143-215.4(b)] If chlorine or chlorine derivative compounds are used as a means of chlorination disinfection, the Permittee must inform the Surface Water Protection Section staff of the Washington Regional Office of this action. Also, a total residual chlorine (TRC) daily compliance limit will immediately apply for the duration of the chlorination, 13 µg/L for discharge to the Neuse River. Daily TRC monitoring shall be conducted for the duration of the chlorination and TRC values reported on the monthly discharge monitoring report. TRC values reported below 50 pg/L are considered to be in compliance with the Paste 17 of 20 Permit NCO0212i3 permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field certified), even if these values fall below 50 µg/L, b. If the effluent TRC level is anticipated to exceed or exceeds the compliance limit, approved dechlorination methods shall be employed to meet compliance and ensure protection of water quality in the receiving stream. A. (12.) ELECTRONIC REPORTING OF MONITORING REPORTS [NCGS 143-215.1 (b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This Section supplements or supersedes the following sections within Part lI of this permit (, kincleiril Conn irions. for NPDES Pennitv): • Section B. (I L) Signatory Requirements • Section D. (2.) • Section D. (6.) • Section E. (5,) Reporting Records Retention Monitoring Reports 1. Roortinp_Reauirements [Supersedes Section D. (2.1 and Section E. (5.) (a)l The Permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application, Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted electronically using eDMR, The eDMR system allows permitted facilities to enter monitoring data and submit DM -Rs electronically using the internet. Until such time that the state's eDMR application is compliant with EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be required to submit all discharge monitoring data to the state electronically using eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one signed original and a copy of the computer printed eDMR to the following address: NC DEQIDWRIWater Quality Permitting Section Attn: Central Files 1617 Mail Service Center Raleigh, NC 27699-1617 If a perinittee is unable to use the eDNfR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper D_MR forms (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See "How to Request a Waiver from Electronic Reporting" section below. Palle 18 of 20 Pamir NCO021253 Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility. on the last day of the month following the commencement ofdischarge. Starting on December 21, 2020, the Permittee must electronically report the following compliance monitoring data and reports, when applicable: Sewer Overflow/Bypass Event Reports: Pretreatment Program Annual Reports: and Clean Water .Act (CWA) Section 316(b) Annual Reports. The Permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). 2. Electronic Submissions in accordance with 40 CFR 122,410)(9), the Permittee must identify the initial recipient at the time of each electronic submission, The Permittee should use the EPA's website resources to identity the initial recipient for the electronic submission. Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that Nvill also lint: to the appropriate electronic reporting tool for each type of electronic submission and for each state. instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA*s NPDES Electronic Reporting Rule is found at: https: //www.federalregister. aov/documents/2015/10/22/201.5-'_4()54/national-pollutant-discharge- elinii«ation-s stem-n des -electronic -re ortin -rule. Electronic submissions must start by the dates listed in the --Reporting Requirenietits" section above. 3. How to Request a Waiver from Electronic Reporting The Permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electrons reporting waivers must be submitted in writing to the Division for written approval at least sixty (60) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed five (5) years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the Permittee re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Pa-e 19 of 20 Pcr►nit NCO021253 Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: http:l/deq. nc.gov/about/divi sions/water-resources/edmr 4. SiSnatory Requirements ISunnlements Section B. (11.) (b) and Supersedes Section 6. (11.) (d)l All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part M Section B. (11.)(a) or by a duly authorized representative of that person as described in Part 11. Section B. (1 1.)(b). A person. and not a position, must be delegated signatory authority for eDMR reporting purposes, For eDMR submissions, the person signing and submitting the DMR must obtain an eDIAAR user account and login credentials to access the eDMR system. For more information on -North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: ►ttp;//dee-nc,gLov/about/divisions/water-resources/edmr Certification. Any person submitting an electronic DN4R using the state's eDNfR system shall make the following certification [40 CFR 1212.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: V certify, tnuler penalty- of Irnv, thctr this docianettt evil all wicwhtn nts weiv, prelxn-ecl under trr}, direction or• sul mrrision in accordance ►+pith a .iy.wem cie.ctgned to assure that (Inaltfied personnel pr•oj)er,1Y gather and ev(Atale the h1fornralion auhntittecl Rased on ni), inquiry- of the pcirson or persons vrho nutrrage the .systent, or those persons directhv reppo► sible ffar• gathering the information, the information submitted is, to the hev of in knotcledge rind belief, true, accurate, crrtcl complete. 1 con a►rctre that there are signs frcw# peualties.for suhrttitting frt1se i»fiwnuition, hichtchrtg the possibifin- of fines caul imprisonmeni or kn mving ►'iolution.s. " 5. Records Retention ISupplements Section D. G. The Permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least three (3) years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41], Pasae 20 of 20 r Locations:Instream Sample upstream of diffuser downstream Neuse . diffuser # Note:. ft in length 1with di �■ jaw. . ~ A *tom U, wR #. • 1 i. ��=1 1■ , _ I► of Havelock�.. rCity �� WWTP US GS Quad: H3 1 NW Havelock, NC Latitude Longitude I . w► Receiving Stream: Neuse River Subbasin: 03-04-10 City � Havelock • Permit � 1 ' 03020204 NPDES Permit Standard Conditions Page 1 of 18 PART II STANDARD CONDITIONS FOR NPDES PERMITS Section A. Definitions 2/Month Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be representative of the wastewater discharged during the sample period. 3/Week Samples are collected three times per week on three separate calendar days. These samples shall be representative of the wastewater discharged during the sample period. Act or "the Act" The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et. seq. Annual Average The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal coliform, the geometric mean of such discharges. Arithmetic Mean The summation of the individual values divided by the number of individual values. Bypass The known diversion of waste streams from any portion of a treatment facility including the collection system, which is not a designed or established or operating mode for the facility. Calendar Day The period from midnight of one day until midnight of the next day. However, for purposes of this permit, any consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. Calendar Week The period from Sunday through the following Saturday. Calendar Quarter One of the following distinct periods: January through March, April through June, July through September, and October through December. Composite Sample A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite samples may be obtained by the following methods: (1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow. (2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period of discharge and combined proportional to the rate of flow measured at the time of individual sample collection, or (3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the preset gallon interval between sample collection fixed at no greater than 1124 of the expected total daily flow at the treatment system, or Version 1110912011.42 NPDES Permit Standard Conditions Page 2 of 18 (4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a constant time interval. Use of this method requires prior approval by the Director. This method may only be used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply: Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters Influent samples shall not be collected more than once per hour. 30, Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab samples at intervals of no greater than 20 minutes apart during any 24-hour period. Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling period. Continuous flow measurement Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance activities on the flow device. Daily Discharge The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the "daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also "Composite Sample," above.) Daily Maximum The highest "daily discharge" during the calendar month. Daily Sampling Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that requirement will be so noted on the Effluent Limitations and Monitoring Page(s). DWR or "the Division" The Division of Water Resources, Department of Environment and Natural ResourcesEnvironmental Quality. Effluent Wastewater discharged following all treatment processes from a water pollution control facility or other point source whether treated or untreated. EMC The North Carolina Environmental Management Commission EPA The United States Environmental Protection Agency Facility Closure Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this permit to be rescinded. Geometric Mean The Nth root of the product of the individual values where N = the number of individual values. For purposes of calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1. Grab Sample Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream samples). Version 1110912011.42 NPDES Permit Standard Conditions Page 3 of 18 Hazardous Substance Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA. Instantaneous flow measurement The flow measured during the minimum time required for the flow measuring device or method to produce a result in that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab samples required for the same sampling period so that together the samples and flow are representative of the discharge during that sampling period. Monthly Average (concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal coliform or other bacterial parameters or indicators, the geometric mean of such discharges. Permit Issuing Authority The Director of the Division of Water Resources, Quarterly Average (concentration limit) The arithmetic mean of all samples taken over a calendar quarter. Severe property damage Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage excludes economic loss caused by delays in production. Toxic Pollutant: Any pollutant listed as toxic under Section 307(a)(1) of the CWA. Upset An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. Weekly Average (concentration limit) The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal coliform or other bacterial parameters or indicators, the geometric mean of such discharges. Section S. General Conditions 1. Duty to Comity_ The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application [40 CFR 122.41 ]. a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section 405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the requirement. b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any such sections in a permit issued under section 402, or any requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR 122.41(a)(2)] c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or 402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or Version 1110912011.42 NPDES Permit Standard Conditions Page 4 of 18 imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122A 1(a)(2)] d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both. [33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)] e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and who knows at that time that he thereby places another person in imminent danger of death or serious bodily injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than 15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to $2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)] f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North Carolina General Statutes § 143-215.6A] g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302, 306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of this Act. Administrative penalties for Class I violations are not to exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed $37,500. Penalties for Class II violations are not to exceed $16,000 per day for each day during which the violation continues, with the maximum amount of any Class II penalty not to exceed $177,500. [33 USC 1319(g)(2) and 40 CFR 122.41(a)(3)] 2. Dury to_Mitigate The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40 CFR 122.41(d)]. Civil and Criminal Liability Except as provided in permit conditions on "Bypassing" (Part II.C.4), "Upsets" (Part II.C.5) and "Power Failures" (Part II.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 4. Oil and Hazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143- 215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 5. Property_ Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)]. 6. Onshore or Offshore Construction This permit does not authorize or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters. Version 1110912011.42 NPDES Permit Standard Conditions Page 5 of 18 7. Severability The provisions of this permit are severable. If any provision of this permit, or the application of any provision of this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the remainder of this permit, shall not be affected thereby [NCGS 150B-23]. 8. Duty to Provide Information The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)]. 9. Duty to Reapply If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the Permittee must apply for and obtain a new permit [40 CFR 122.41(b)]. 10. Expiration of Permit The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to discharge beyond the expiration date, the Permittee shall submit such information, forms, and fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a later date has been granted by the Director. (The Director shall not grant permission for applications to be submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq. l l . Signatory Requirements All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40 CFR 122.41(k)]. a. All permit applications shall be signed as follows: (1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures . (2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or (3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official [40 CFR 122.22]. b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be signed by a person described in paragraph a. above or by a duly authorized representative of that person. A person is a duly authorized representative only if: (1) The authorization is made in writing by a person described above; (2) The authorization specified either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or well field, superintendent, a position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position.); and (3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22] Version 1110912011.42 NPDES Permit Standard Conditions Page G of 18 c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because a different individual or position has responsibility for the overall operation of the facility, a new authorization satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or together with any reports, information, or applications to be signed by an authorized representative [40 CFR 122.221 d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following certification [40 CFR 122,22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: 7 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are signcant penalties far submitting false information, including the possibility offanes and imprisonment for knowing violations. " 12. Permit Actions This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)]. 13. Permit Modification, Revocation and Reissuance, or Termination The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina Administrative Code, Subchapter 0211 .0100; and North Carolina General Statute 143.215.1 et. al. 14. Annual Administering and Compliance Monitoring Fee Requirements The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being billed by the Division, Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2) may cause this Division to initiate action to revoke the permit. Section C. Operation and Maintenance of Pollution Controls 1. Certified Operator Owners of classified water pollution control systems must designate operators, certified by the Water Pollution Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the system, and, for each classification must [T15A NCAC 08G .0201]: a. designate one Operator In Responsible Charge (ORC) who possesses a valid certificate of the type and grade at least equivalent to the type and grade of the system; b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid certificate of the type of the system and no more than one grade less than the grade of the system, with the exception of no backup operator in responsible charge is required for systems whose minimum visitation requirements are twice per year; and c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission (or to the local health department for owners of subsurface systems) countersigned by the designated certified operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible Charge (Back-up ORC): (1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or (2) within 120 calendar days following: ➢ receiving notification of a change in the classification of the system requiring the designation of a new Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC) of the proper type and grade; or ➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in Responsible Charge (Back-up ORC). Version 1110912011.42 NPDES Permit Standard Conditions Page 7 of 18 (3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating at least one of the responsibilities. The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must: ➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment facility must be visited at least weekly ➢ Comply with all other conditions of 15A NCAC 08G .0204. The ORC of each Class II, III and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must: )0- Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment facility must be visited at least five days per week, excluding holidays ➢ Properly manage and document daily operation and maintenance of the facility ➢ Comply with all other conditions of 15A NCAC 08G .0204. 2. Proper Operation and Maintenance The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)]. NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a member of the Permittee's staff. Need to Halt or Reduce not a Defense It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)]. 4. Bypassing of Treatment Facilities a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)] The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions of Paragraphs b. and c. of this section. b. Notice [40 CFR 122.41(m)(3)] (1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice, if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality and effect of the bypass. (2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part II.E.6. (24-hour notice). c. Prohibition of Bypass (1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for bypass, unless: (A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage; (B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance; and (C) The Permittee submitted notices as required under Paragraph b. of this section. (2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement action against a Permittee for a bypass as provided in any current or future system -wide collection system permit associated with the treatment facility. Version 1110912011.42 NPDES Permit Standard Conditions Page S of 18 (3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c. (1) of this section, 5. Upsets a. Effect of an upset [40 CFR 122.4 1 (n)(2)]: An upset constitutes an affirmative defense to an action brought for noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of this condition are met. No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review. b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant evidence that: (1) An upset occurred and that the Permittee can identify the cause(s) of the upset; (2) The Permittee facility was at the time being properly operated; and (3) The Permittee submitted notice of the upset as required in Part II.E.6.(b) of this permit. (4) The Permittee complied with any remedial measures required under Part II.B.2. of this permit. c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has the burden of proof in any enforcement proceeding. 6. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant from such materials from entering waters of the State or navigable waters of the United States except as permitted by the Commission, The Permittee shall comply with all applicable state and Federal regulations governing the disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal practices. 7. Power Failures The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources, standby generators or retention of inadequately treated effluent. Section D. Monitoring and Records 1. Representative Sampling Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit Issuing Authority [40 CFR 122.410)]. 2. Reporting Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a monthly Discharge Monitoring Report (DMR) Form (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director, postmarked no later than the last calendar day of the month following the completed reporting period. The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of these, and all other reports required herein, shall be submitted to the following address: Version 1110912011.42 NPDES Permit Standard Conditions Page 9 of 18 NC DENWDE�/ Division of Water Resources 1 Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Flow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. The Director shall approve the flow measurement device and monitoring location prior to installation. Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of this permit and based on the manufacturer's pump curves shall not be subject to this requirement, 4. Test Procedures Laboratories used for sample analysis must be certified by the Division. Permittees should contact the Division's Laboratory Certification Section (919 733-39081 or visit h ttps : //deg .nc. gov/about/divi si ons/water-resources/water-res ourc e s-data/water-s c ienc es -home -pa Bell ab oratory certification -branch for information regarding laboratory certifications. Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field parameter laboratory certifications. Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS 143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section 304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been specified in this permit [40 CFR 122.411. To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most sensitive (method with the lowest possible detection and reporting level) approved method must be used. Penalties for Tampering The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this paragraph, punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years, or both [40 CFR 122.41 ]. 6. Records Retention Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR 503), the Permittee shall retain records of all monitoring information, including: ➢ all calibration and maintenance records ➢ all original strip chart recordings for continuous monitoring instrumentation ➢ copies of all reports required by this permit ➢ copies of all data used to complete the application for this permit Version 1110912011.42 NPDES Permit Standard Conditions Page 10 of 18 These records or copies shall be maintained for a period of at least 3 years from the date of the sample, measurement, report or application. This period may be extended by request of the Director at any time [40 CFR 122.41], 7. Recording Results For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the following information [40 CFR 122.41 ]: a. The date, exact place, and time of sampling or measurements; K The individual(s) who performed the sampling or measurements; c. The date(s) analyses were performed; d. The individual(s) who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. 8. Inspection and Entry The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as a representative of the Director), upon the presentation of credentials and other documents as may be required by law, to; a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this permit; b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit; c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices, or operations regulated or required under this permit; and d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise authorized by the CWA, any substances or parameters at any location [40 CFR 122A 1(i)], Section E Reporting Requirements 1. Change in ❑ischarge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. 2. Planned Changes The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility [40 CFR 122.41(1)]. Notice is required only when: a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR 122.29(b); or b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to notification requirements under 40 CFR 122.42(a)(1); or c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and such alteration, addition or change may justify the application of permit conditions that are different from or absent in the existing permit, including notification of additional use or disposal sites not reported during the permit application process or not reported pursuant to an approved land application plan. 3. Anticipated Noncompliance The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)]. 4. Transfers This permit is not transferable to any person without prior written notice to and approval from the Director in accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in Version 1110912011.42 NPDES Permit Standard Conditions Page 11 of 18 particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit, or a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary under the CWA [40 CFR 122.41(1)(3), 122.61 ] or state statute. 5. Monitoring Reports Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)]. a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms provided by the Director for reporting results of monitoring of sludge use or disposal practices. b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate instrument governing the discharge, the results of such monitoring shall be included in the calculation and reporting of the data submitted on the DMR. 6. Twenty-four Hour Reporting a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that potentially threatens public health or the environment. Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40 CFR 122.41(1)(6)]. b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral report has been received within 24 hours. c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response personnel at (800) 662 7956(800) 858-0368 or (919) 733-3300. 7. Other Noncompliance The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the time monitoring reports are submitted. The reports shall contain the information listed in Part II.E.6. of this permit [40 CFR 122.41(1)(7)]. 8. Other Information Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or information [40 CFR 122.41(1)(8)]. 9. Noncompliance Notification The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report within 5 days following first knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit. 10. Availability of Reports Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices Version 1110912011.42 NPDES Permit Standard Conditions Page 12 of 18 of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143- 215, 1 (b)(2) or in Section 309 of the Federal Act. It. Penalties for Falsification of Reports The CWA provides that any person who knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be maintained under this permit, including monitoring reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than $25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41 ]. 12. Annual Performance Reports Permittees who own or operate facilities that primarily collect or treat municipal or domestic wastewater and have an average annual flow greater than 200,000 gallons per day shall provide an annual report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1 C). The report shall summarize the performance of the collection or treatment system, as well as the extent to which the facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which annual period is used for evaluation. The report shall be sent to: NC E)RiR DE 1 Division of Water Resources 1 Water Quality Permitting Section ATTENTION: Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Version 1110912011.42 NPDES Permit Standard Conditions Page 13 of 18 PART III OTHER REQUIREMENTS Section A. Construction a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the planes treatment capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements under Item b. of this Section. b. In accordance with NCGS 143-215.1(a5) [SL 2011-394], no permit shall be required to enter into a contract for the construction, installation, or alteration of any treatment work or disposal system or to construct, install, or alter any treatment works or disposal system within the State when the system's or work's principle function is to conduct, treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the discharge may be modified if required by federal regulation. c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been submitted by the Permittee and approved by the Division. Section B. Groundwater Monitoring The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to determine the compliance of this NPDES permitted facility with the current groundwater standards. Section C. Changes in Discharges of Toxic Substances The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42): a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of any toxic pollutant which is not limited in the pen -nit, if that discharge will exceed the highest of the following "notification levels"; (1) One hundred micrograms per liter (100 µg/L); (2) Two hundred micrograms per liter (200 gg/L) for acrolein and acrylonitrile; five hundred micrograms per liter (500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for antimony; (3) Five times the maximum concentration value reported for that pollutant in the permit application. b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (1) Five hundred micrograms per liter (500 gg/L); (2) One milligram per liter (1 mg/L) for antimony; (3) Ten times the maximum concentration value reported for that pollutant in the permit application. Section D. Facility Closure Requirements The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered by this permit. The Division may require specific measures during deactivation of the system to prevent adverse impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the permitted facility. Version 1110912011.42 NPDES Permit Standard Conditions Page 14 of 18 PART IV SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES Section A. Definitions In addition to the definitions in Part II of this permit, the following definitions apply to municipal facilities: Indirect Discharge or Industrial User Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section 307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and 0) and 15A NCAC 02H .0903(b)(11)] Interference Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in compliance with specified applicable State and Federal statutes, regulations, or permits. [15A NCAC 02H .0903(b)(14)] Pass Through A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge permit. [15A NCAC 02H .0903(b)(23)] Publicly Owned Treatment Works (POTW) A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization. This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T .0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of POTW may be referred to as a "satellite POTW organization." [ 15A NCAC 02H .0903(b)(26)] "Significant Industrial User" or "SIU" An Industrial User that discharges wastewater into a publicly owned treatment works and that [15A NCAC 02H .0903(b)(33)]: I. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary, noncontact cooling and boiler blowdown wastewaters); or 2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS and ammonia; or 3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or 4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options; 5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a Significant Industrial User (SIU); or 6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a non -significant categorical Industrial User. Section B. Publicly Owned Treatment Works (POTWs) Version 1110912011.42 NPDES Permit Standard Conditions Page 15 of 18 All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]: 1. Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants; and 2. Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as influent to that POTW at the time of issuance of the permit, 3. For purposes of this paragraph, adequate notice shall include information on (l) the quality and quantity of effluent introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or quality of effluent to be discharged from the POTW. Section C. Municipal Control of Pollutants from Industrial Users. 1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent limitations for any or all of such other pollutants in accordance with best practicable technology or water quality standards. 2. Prohibited Discharges a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the introduction of pollutants or discharges into the waste treatment system or waste collection system which cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40 CFR 403.5(a)(1)] b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]; (1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test methods specified in 40 CFR 261.21; (2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower than 5.0, unless the works is specifically designed to accommodate such discharges; (3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in Interference; (4) Any pollutant, including oxygen demanding pollutants (ROD, etc.) released in a Discharge at a flow rate and/or pollutant concentration which will cause Interference with the POTW; (5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F) unless the Division, upon request of the POTW, approves alternate temperature limits; (6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause Interference or Pass Through; (7) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; or (8) Any trucked or hauled pollutants, except at discharge points designated by the POTW. c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or the operation of the POTW. The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office. Any information shall be provided orally within 24 hours from the time the Permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission shall contain a description of the discharge; the investigation into possible sources; the period of the discharge, including exact dates and times; if the discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance, Version 1110912011.42 NPDES Permit Standard Conditions Page 16 of 18 3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding some or all of the industries discharging to the municipal system, 4. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as required under section D below as well as 15A NCAC 02H .0907(a) and (b), [40 CFR 122.440)(2)] 5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the approved State pretreatment program, as appropriate. Section D. Pretreatment Pro rams Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403, North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment program submittal are an enforceable part of this permit. [40 CFR 122.440)(2)] The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40 CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained in its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is not limited to the implementation of the following conditions and requirements. Terms not defined in Part II or Part IV of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3. 1. Sewer Use Ordinance (SUO) The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A NCAC 02H .0903 (b)(32),.0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)] 2. Industrial Waste_ Survey (IWS) The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.440)(1)], including identification of all Industrial Users that may have an impact on the POTW and the character and amount of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users meeting the definition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs, the IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as required by the Division. The IWS submission shall include a summary of any investigations conducted under paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(f)(2) and 403.9] 3. Monitoring Plan The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts II.D and II.E.S.). [15A NCAC 02H .0903 (b)(1 6),.0906(b)(3) and .0905] 4. Headworks Analysis (HWA) and Local Limits The Permittee shall obtain Division approval of a HWA at least once every five years, and as required by the Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an updated HWA or documentation of why one is not needed) [40 CFR 122.441. The Permittee shall develop, in accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are Version 1110912011.42 NPDES Permit Standard Conditions Page 17 of 18 enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and .0906(b)(4)] Industrial User Pretreatment Permits (IUP) & Allocation Tables In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works. These permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special conditions, and compliance schedules as necessary for the installation of treatment and control technologies to assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The Permittee shall maintain a current Allocation Table (AT) which summarizes the results of the HWA and the limits from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii); NCGS 143-215.67(a)] 6. Authorization to Construct (AtC) The Permittee shall ensure that an Authorization to Construct permit (AtC) is issued to all applicable Industrial Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all Industrial User Pretreatment Permit (IUP) limitations. [ 15A NCAC 02H .0906(b)(7) and .0905; NCGS 143- 215. 1 (a)(8)] 7. PQTW Inspection & Monitoring of their IUs The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division approved pretreatment program in order to determine, independent of information supplied by Industrial Users, compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The Permittee must: a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year; b. Sample all Significant Industrial Users (SIUs) at least once per calendar year for all SIU permit -limited parameters including flow except as allowed under 15A NCAC .0908(e); and c. At least once per year, document an evaluation of any non -significant categorical Industrial User for compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non- significant. 8. IU Self Monitoring and Reporting The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting requirements outlined in the Division -approved pretreatment program, the industry's pretreatment permit, or in 15A NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR 122.446)(2) and 40 CFR 403.12] 9. Enforcement Response Plan (ERP) The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local limitations, and other pretreatment requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response Plan (ERP) approved by the Division. [l5A NCAC 02H .0903(b)(7), .0906(b)(8) and .0905; 40 CFR 403.8(f)(5)] 10. Pretreatment Annual Reports (PAR) The Permittee shall report to the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment requirements and other pretreatment implementation issues. For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report (PAR) describing its pretreatment activities over the previous calendar year to the Division at the following address: Version 1110912011.42 NPDES Permit Standard Conditions Page 18 of 18 NC DENF-D�1 Division of Water Resources 1 Water Quality Permitting Section Pretreatment, Emergency Response, and Collection Systems (PERCS) Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 These reports shall be submitted by March 1 of each year and shall contain the following: a. Narrative A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non- compliance and to ensure compliance with pretreatment requirements; b. Pretreatment Program Summary (PPS) A pretreatment program summary (PPS) on forms or in a format provided by the Division; c. Significant Non -Compliance Report (SNCR] A list of Industrial Users (IUs) in significant noncompliance (SNC) with pretreatment requirements, and the nature of the violations on forms or in a format provided by the Division; d. Industrial Data Summary Forms (IDSF) Monitoring data from samples collected by both the POTW and the Significant Industrial Users (SIUs). These analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format provided by the Division; e. Other Information Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of IUs in SNC, a summary of data or other information related to significant noncompliance determinations for IUs that are not considered SILTS, and any other information, upon request, which in the opinion of the Director is needed to determine compliance with the pretreatment implementation requirements of this permit; It. Public Notice The Permittee shall publish annually a list of Industrial Users (IUs) that were in significant noncompliance (SNC) as defined in the Permittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements and standards during the previous twelve month period. This list shall be published within four months of the applicable twelve-month period. [I5A NCAC 02H .0903(b)(34), .0908(b)(5) and .0905 and 40 CFR 403.8(f)(2)(viii)] 12. Record Keeping The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with support information including general records, water quality records, and records of industrial impact on the POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [I5A NCAC 02H .0908(f); 40 CFR 403.12(o)] 13. Pretreatment Program Resources The Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved pretreatment program. and retain a written description of those current levels of inspection. [I5A NCAC 02H .0906(b)(9) and (10) and .0905; 40 CFR 403.8(f)(3), 403.9(b)(3)] 14. Modification to Pretreatment Programs Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907. Version 1110912011.42 APPENDIX M New Bern WWTP and WTP NPDES Discharge Permit DwuSipn Envelope ID:20536D25-33EF-4FCl-9954-07BBBBCIBCC7 ROY COOPER Governor ELIZABETH S. BISER secrrrory RICHARD E. ROGERS, JR. airrrfor . Mr. Foster Hughes, City Manager City of New Bern PO Box 1129 New Bern, North Carolina 28563 Dear Mr. Hughes: NORTH CAROLINA Envlranm&Md Quality December 7, 2022 Subject: Final NPDES Permit Renewal Permit NCO025348 New Bern WWTP Craven County Grade IV Biological WPCS SIC Code 4952 Division personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently amended). Please note that the receiving stream is listed as impaired for Copper on the North Carolina 2022 303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data will continue to be evaluated. If there is noncompliance with permitted effluent limits and stream impairment can be attributed to your facility, then mitigative measures may be required. The following change were made to the draft permit sent to you on October 19, 2022: Based on continents from the Division's Aquatic Toxicology Branch, the second species toxicity test revised from a quarterly 24-hr Pass/Fail acute test to a 48-hr LCSc, acute test. Additionally, the species has been clarified as Menidiu beryllina (Inland Silverside). [See A.(12.)]. The final permit maintains the following significant changes identified in the letter sent on October 19, 2022: Based on the reasonable potential analysis (RPA) showing no reasonable potential to violate state water quality standards, the monitoring requirements for copper and cyanide have been removed from the permit [See A. (2.)]. Based on the RPA predicting a maximum effluent zinc concentration that is greater than half of allowable discharge concentration based on state water quality standards, quarterly monitoring for zinc has been added to the permit [See A. (2.)]. North Carolina Depardneat of Fpvirontnental Quality I Division of Water Resources Qz 512 North Salisbury Street I l6l i Mail Service Center I Raleigh, North Carolina 27699-1611 '' �� 919.707.9000 ❑oeuSign Erwelope ID: 2D536D25-33EF-4FCa9954-07BB8BC1 BCC7 • Based on RPA showing a reasonable potential to violate state quality standards from a limited dataset (n < 8 samples with one exceedence), quarterly monitoring for Bromodichloromethane has been added to the permit [See A. (2.)]. ■ Based on Mercury TMDL evaluation showing detection of mercury at levels > 1 ng/L, Special Condition A. (12.) Mercury Minimization Plan has been reworded toward its maintenance. • Total Silver limits of 0.10 µg/L monthly average and 2.2 pgIL daily maximum were added to the permit with monthly monitoring. A footnote has been added to the Effluent Sheet for Silver to test and report to the lower reporting level of the procedure [See A. (2.)]. DWR's laboratory identifies the target Practical Quantification Limits (PQLs) for Total Silver as 1.0 pgIL. 15A NCAC 2B .0505 (e) (4) requires that all test procedures must produce detection and reporting levels that are below the permit discharge requirements and all data generated must be reported to the approved detection level or lower reporting level of the procedure. If no approved methods are capable of achieving a detection level below the permit discharge requirement (or allowable discharge concentration) the method with the lowest detection level must be used. • Based on interpretation of instream conductivity data showing an increase downstream, daily effluent Conductivity monitoring has been added to the permit [See A. (2.)]. • Based on Best Professional Judgement (BPJ) in consideration of the submitted groundwater modeling results and the porosity of the bedrock below East Lake bordering the Neuse River, a 50% TN credit is assigned to wastewater diversion to the East Lake High -Rate Infiltration Disposal System that will expire upon the next permit cycle [See A. (5.)]. • For consistency with other instream monitoring parameters, vertical instream monitoring for pH has been changed from top and bottom to every 1-foot interval throughout the water column [See A. (6.)]. • Some of the wording has changed in Special Condition A. (10.), Acute Toxicity Permit Limit, please review each paragraph carefully. ■ Special Condition A. (12.) has been modified to include the specific three years in which the Effluent Pollutant Scan shall be performed (2024, 2025, and 2026). In addition, at the end of the Special Condition, 2gd species Toxicity Testing Requirements for municipal permit renewals per Federal Regulations [40 CFR 122.210)(5)] have been added. ■ Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The requirement to continue reporting discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application has been added to your NPDES permit [See Special Condition A. (13.)]. • Parameter codes have been added to the Effluent Limitations and Monitoring Requirements [See A. (L) through A. (5.)] and Instream Monitoring Requirements [See A. (6.)]. • Regulatory citations have been added to the permit. • The facility map has been updated to show instream monitoring locations. Pretreatment updates in response to NPDES permit renewal: • On June 5, 2023, 180 days after the effective date of this NPDES permit renewal, the City is required to submit to the Division a written technical evaluation of the need to revise local limits (i.e., an updated IWSIHWA-ATIL-STMP, or documentation of why is not needed). This action may include revising, updating, or adding to the list of SIUs regardless of timeframe. o Submit the updated Long -Term Monitoring Plan (LTMP) ■ If there are new industries within the service area, submit an updated Industrial Waste Survey (IWS) • Review pollutants of concern (POCs) and update the LTMP to reflect pollutants in industrial user permits (IUPs) and sludge management permit. ■ Update the POC PQLs to recommended levels: • Arsenic (As) at 2.0 µglL • Cadmium (Cd) at 0.5 µg/L • Copper (Cu) at 2.0 pgIL Q+<,� North Carolina Department of Envuoun=tal Quality I Division of Water Resources ✓ 5 12 North Salisbury Street 1 16l I Mail Service Center I Raleigh. North Carolina 27699-161 i 4 ,�, 919.707.90M Docusign Envelope ID: 2D536D25-33EF-4FC0-9954-07BB86C1 BCC7 • Lead (Pb) at 2.0 µg/L • Nickel (Ni) at 5.0 at gg/L • Silver (Ag) at 1.0 µg/L o As part of the local limits assessment, please submit the updated Headworks Analysis (HWA). The NPDES standard conditions (Parts 11, III, and IV) that are a part of the permit are not included in this draft document (cover, map, and Part I). The conditions are the same as in your current permit except that agency and division names have been updated. The latest version is available at ht1ps://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Resources or any other Federal, State, or Local governmental regulations. If you have any questions concerning this permit, please contact Gary Perlmutter at (919) 707-3611 or via email at gary.perlmutter@ncdenr.gov. Sincerely, ooeuswe,.e by E t, h C468531431844FE.. for Richard E. Rogers Jr., Director Division of Water Resources, NCDEQ Hardcopy: NPDES Files e-Copy: US EPA Region 4 DWR 1 Washington Regional Office 1 Water Quality 1 Robert Tankard DWR 1 Operator Certification Program 1 Maureen Kinney DWR 1 Ecosystems Branch 1 Mark Vander Borgh DWR 1 Basin Planning 1 Nora Deamer DWR 1 Aquatic Toxicology Branch 1 Cindy Moore City of New Bern 1 Tony Hawkins (ORC), Jordan Hughes (City Engineer), Sara Rhodes (Pretreatment coordinator) North Carolina Department of )vnviraamenta! Quality I Division of Water Resottrcrs 512 North Salisbury Street i 1611 MAH Service Censor I Raleigh, North Carolina 276919.1611 oors�w r i.wr�www awnr� 919.707,9000 DocuSign Ernelope ID: 2D536D25-33EF-4FCO-9954-07BBa6C1BCC7 Permit NCO025348 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, the City of New Bern is hereby authorized to discharge wastewater from a facility located at the New Bern Wastewater Treatment Plant NCSR 1404, Craven County and New Bern Water Treatment Plant NC Highway 55, Craven County to receiving waters designated as the Neuse River Estuary in the Neuse River Basin in accordance with the effluent limitations, monitoring requirements, and other applicable conditions set forth in Parts I, II, III, and IV hereof. This permit shall become effective January 01, 2023. This permit and authorization to discharge shall expire at midnight on June 30, 2027. Signed this day December 7, 2022. kbkft,k9h C46�53�a346"FF .. for Richard E. Rogers, Jr., Director Division of Water Resources By Authority of the Environmental Management Commission DocoSign Envelope ID: 20536D25-33EF-4FCO-9954-07BB8BC1BCC7 Permit NC0025348 SUPPLEMENT TO PERMIT COVER SHEET All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked. As of this permit issuance, any previously issued permit bearing this number is no longer effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the permit conditions, requirements, terms, and provisions included herein. The City of New Bern is hereby authorized to: 1. Continue to operate the existing wastewater treatment works identified on the Cover, an existing 6.5 MGD through Internal Outfall 002 and consisting of the following components: • Influent flow meter • Automatic and manual bar screen • Grit removal • Flow spiitter box • 4 anaerobic basins • 2 anoxic basins • 2 oxidation ditches with 2 mixers each • 2 secondary anoxic basins ■ 2 reaeration basins ■ Secondary flow splitter box • 2 clarifiers ■ 3-cell tertiary filter • Flash mix tank • 2 chlorine contact tanks with liquid chlorine + Dechlorination with sodium bisulfate • Reaeration basin with 2 discharge basins ■ 2 effluent flow meters • Diffuser • 3 aerated sludge tanks ■ Filter press • Pasteurization (lime and heat) vessel • Sludge storage area The facility is located at the New Bern WWTP, off NCSR 1404 near New Bern in Craven County. 2. Continue to operate and maintain a drinking water treatment plant (WTP) with a discharge line of wastewater from filter backwash and softener regeneration backwash through Internal Outfall 003. The WTP wastewater treatment system consists of the following components: ■ Settling lagoon • Pump • Force main to tie into the existing WWTP discharge line, with a check valve installed between the WTP and the line to the quarry. This facility is located at the New Bern Water Treatment Plant TW #2 WTP, off NC Highway 55 near New Bern in Craven County. 3. Discharge from said treatment works at the location specified on the attached map through Outfall 001 into the Neuse River, classified SC -Swamp NSW waters in the Neuse River Basin and 03020202 HUC. 4. Continue to operate a pump station, force main, and infiltration system and discharge treated wastewater to the former Martin Marietta quarry (East Lake), in accordance with the terms and conditions of Permit WQ0017635. Page 2 of 17 DocuSign Envelope ID: 20536D25-33EF-4FC0-9954-07B686CIBCC7 Permit NCO025348 PART I A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 001 [I5A NCAC 02B .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date of the permit and lasting until permit expiration, the Permittee is authorized to discharge treated filter backwash and softener regeneration backwash from the Water Treatment Plant and treated wastewater from the Wastewater Treatment Plant via Outfall 001. Such discharges shall be limited and monitored' by the Pennittee as specified below: EFFLUENT CHARACTERISTICS Parameter Code LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily- Maximum Measurement Frequency y� Sample T p Sample Location z Flow (MGD) 50050 Monitor and Report Daily Calculated 3 El Acute Toxicity a TGE3E Monitor and Report Quarterly Composite E1 Footnotes: 1. Submit discharge monitoring reports electronically using NC DWR's eDMR application system. See Section A. (13.). 2. E1 = Combined Effluent to river; E2 = WWTP Effluent to Internal Outfall 002; E3 = WTP Effluent to Internal Outfall 003; E5 = WWTP Effluent to East Lake quarry disposal system. 3. The daily flow to the river shall be calculated as follows: Effluent Flow (E 1) = WWTP Effluent Flow (E2) - Flow to Quarry (E5) + WTP Effluent Flow (E3) 4. Acute Toxicity (Mysidopsis Bahia) PIF at 90% effluent with testing in March, June, September and December [See A. (10.)]. Samples for Whole Effluent Toxicity Test shall be representative of the discharge. If the WWTP effluent is being diverted to the quarry, it must not be diverted to discharge to the diffuser for the purpose of diluting the WTP effluent. There shall be no discharge of floating solids or visible foam in other than trace amounts. Footnote 1. El = Combined Effluent to river; E2 = WWTP Effluent to Internal Outfall 002; E3 = WTP Effluent to Internal Figure 1. Effluent Waste Stream and Outfall. Con figttration' (Former 004) E Lake Reclamation Facility (WQ0017635) Ouarry (East Lake) Neuse River 0o5 Subsurface Flow {E5) 001 (E1) New Bern006 o02 fE2] WWTP E6 New Bern 003 (E3) WTP Outfall 003; E5 = WWTP Effluent to East Lake quarry disposal system; E6 = Net WWTP Effluent to river. Page 3 of 17 DocuSign Envelope ID: 2 D536D25-33 E F-4 F C 0-9954-0 7 B B8 BG 1 BL:L:7 Permit NCO025348 A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 002 (6.5 MGD) [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water Pollution Control System [ I SA NCAC 08G .0302] a. During the period beginning on the effective date of the permit and lasting until permit expiration, the Permittee is authorized to discharge treated municipal and industrial wastewater from the Wastewater Treatment Plant via Internal Outfall 002. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Type p yp Sample Paramefer Code Average Average Maximum Frequency Location Flow 50050 6.5 MGD 3 Continuous Recording 1, E2 Bap, 5-day, 4 Summer {Apr 1 -Oct 31)1) C0310 5.0 mg/L 7.5 mg/L 2lweekI Composite 1. E2 BOD, 5-day, 20"C Winter (Nov 1 - Mar 3 1)° 10.0 mg/L 15.0 mg/L 2/week 5 Composite I, E2 Total Suspended Solids (T5S) a C0530 30.0 mg/L. 45.0 mglL 2/week i Composite 1, E2 Ammonia (NH3-N) Summer 1.0 mg/L 3.0 mg/L 2/week 5 Composite E2 (Apr 1 - Oct 31) CU61O Ammonia (N`Fb-N) Winter 2.0 mg/L 6.0 mg/L 2/week S Composite E2 (Nov 1 - Mar 31) pH 00400 Between 6,8 and 8.5 Standard Units Daily Grab E2 tr ci (geometric mean} (geom 61211 35J100 mL 276/100 mL 2/week i Grab E2 TotalC� residual Chlorine 50060 13.0 µglL Daily Grab E2 Dissolved Oxygen (DO) 00300 Daily Average ? 5.0 mg/L Daily Grab E2 Temperature (°C) 00010 Monitor and Report Daily Grab E2 Conductivity 00094 Monitor and Report Daily Grab E2 Totat Silver' 01077 0.10 2.2 Quarterly Composite E2 Total Zinc 01092 Monitor and Report Quarterly Composite E2 Total Nitrogen (TN) (mglL) a C0600 Monitor and Report Weekly Composite E2 TN Load g y QM600 Monitor and Report (lblmo) Monthly Calculated E2 QY600 Monitor and Report (lb/yr) Annually Total Phosphorus (TP) (mg/L) C0665 2.0 mglL. (quarterly average)10 Weekly Composite E2 Bromodichloromethane 38693 Monitor and Report Quarterly Grab E2 Effluent Pollutant Scan NCO] Monitor and Report Footnote 11 Footnote 11 E2 Footnotes: 1. The Permittee shall submit Discharge Monitoring Reports electronically using NCDWR's eDMR application system. See Special Condition A. (13.). 2. Sample locations: I = Influent to WWTP; E2 = W WTP Effluent to Internal Outfall 002. 3. The Permittee may measure flow through the treatment plant and/or flow to Internal Outfall 002 using any reasonable combination of measurements that will provide accurate results. Whenever separate flow measurements are used to calculate either of these reportable flows, the daily sum ofthe component flows shall be calculated first, and monthly average flow shall then be calculated as the average of these daily flows. 4. The monthly average effluent BOD5 and TSS concentrations shall not exceed 15% of the respective influent value (85% removal). 5. Twice per week sampling must occur on any two non-consecutive days during the calendar week. Footnotes continue on the next page. Page 4 of 17 DocuSign Envelope ID: 2D536D25-33EF-4FC0-9954-07BB8BC1BCC7 Permit NCO025348 Footnotes (continued). 6. The facility shall monitor TRC when using chlorination for disinfection. The Division shall consider all effluent TRC values reported below 50 µglL to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field -certified), even if these values fall below 50 µglL. 7. Samples shall be analyzed and reported to the lower reporting level of the procedure. 8. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively. 9. TN Load is the mass load of TN discharged by the Permittee in a period of time. See Special Condition A. (7.). 10. The quarterly average for total phosphorus shall be the average of composite samples collected weekly during each calendar quarter (January -March, April -June, July -September, October -December). 11. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit; see Section A. (12.). There shall be no discharge of floating solids or visible foam in other than trace amounts. A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — Outfall 003 [15A NCAC 02H .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date of the permit and lasting until permit expiration, the Permittee is authorized to discharge treated filter backwash and softener regeneration backwash from the Water Treatment Plant from internal Qutfall 003. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS Parameter Code LIMITS MONITORING REQUIREMENTS Monthly Average Weekly Average Daily Maximum Measurement Frequency Sample Ty p Sample Location Flow - 003 50050 Monitor and Report Continuous Recording E3 Total Residual3 Chlorine 50060 110 µglL 2/Month Grab E3 Total Dissolved Solids (TDS) C0530 Monitor and Report Monthly Grab E3 pH 00400 Between 6.8 and 8.5 Standard Units 2/Month Grab E3 Total Suspended Solids (TSS) 70295 30.0 mg/L 1 45.0 mg/L I 21Month Grab E3 Turbidity (ntu) 00070 Monitor and Report Monthly Grab E3 Ammonia (Ntb-N) C0610 Monitor and Report Quarterly Composite E3 Salinity (%a) 00480 Monitor and Report Monthly Composite E3 Footnotes: L Submit discharge monitoring reports electronically using NCDWR's eDMR application system; see Section A. (13.). 2. Sample location: E3 = WTP Effluent to Internal Outfall 003. 3. The facility shall monitor TRC when using chlorination for disinfection. The Division shall consider all effluent TRC values reported below 50 µglL to be in compliance with the permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina certified laboratory (including field -certified), even if these values fall below 50 µgll.. b. All samples collected should be from a representative discharge event. There shall be no discharge of floating solids or visible foam in other than trace amounts. Page 5 of 17 DocuSign Envelope 10: 2D536D25-33EF-4FCO-9954-07BI38t3C:1 BCC7 Permit NCO025348 A. (4.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENT'S - Outfall 005 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date of the permit and lasting until permit expiration, the Permittee is authorized to discharge treated effluent from the Wastewater Treatment Plant (internal outfall 002) to the East Lake quarry infiltration system (internal outfall 005) in accordance with permit WQ0o17635. Such discharges shall be limited and monitored' by the Permittee as specified below: EFFLUENT CHARACTERISTICS Parameter Code LIMITS MONITORING REQUIREMENTS Monthly Weekly Daily Average Average Maximum Measurement Frequency Sample Type Sample z Location Flow (MOD) 50050 Monitor and Report Daily Recording E5 Total Monthly Flow (MG/month) 82220 Monitor and Report Monthly I Recording or I Calculated E5 Footnotes 1. Submit discharge monitoring reports electronically using NCDWR's eDMR application system; see Special Condition A. (13.). 2. Sample location: E5 = WWTP Effluent to East Lake Quarry Infiltration System. A. (5.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - Outfall 006 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] a. During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge treated wastewater from internal Outfall 006. Such discharges shall be limited and monitored' by the Permittee as specified below: PARAMETER EFFLUENT LIMITATIONS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement Sample Sample Parameter Code Average Average Maximum Frequency Type Location' QM600 Monitor and report (lb/month) Monthly Calculated F6 — Net TN Load Q YG0064,210- E6 lb/year a Annually Calculated Footnotes 1. Submit discharge monitoring reports electronically using NCDWR's eDMR application system, see Special Condition A. (13.). 2. Sample location: E6 = Net WWTP Effluent to river. 3. The Net TN Load discharged to the Neuse River shall be calculated as follows: Net TN Load = TN Load (Outfall 002) - TN Credits where TN Credits (50% credit) = TN Load to East Lake (Outfall 005) X 0.5. TN Loads at Outfalls 002 and 005 shall be calculated as prescribed in condition A. (7.), Calculation of Total Nitrogen Loads. 4. See related TN monitoring requirements in conditions A. (2.) (Outfall 002) and A. (4.) (Outfall 005). b. The Net TN Load at Internal Outfall 006 shall be the measure of the Permittee's total nitrogen discharge to surface waters for the purpose of determining compliance with the TN Load limit established pursuant to the Neuse River Basin Nutrient Management Strategy. c. The New Bern WWTP has the ability to divert treated effluent from its Neuse River discharge to the Martin Marietta (East Lake) Quarry, thereby reducing its surface water discharge and the associated nitrogen load. Page 6of17 DocuSign Envelope ID: 2D536D25-33EF-4FCO-9954-075BBBC9 BCC7 Permit NCO025348 The Permittee may receive credit for this reduction, as described in this condition, in order to comply with the Net TN Load limitation. d. The Permittee will be credited for 50% nitrogen load diverted from the Neuse River discharge (Outfall 001) to the Quarry (Outfall 005) until permit expiration. e. Nitrogen credits shall accrue on a monthly basis and shall be valid only for the calendar year in which they accrue. f. The nitrogen credits described in this condition do not account for nitrogen diversions to the Mackilwean Turf Farm or other reclaimed water irrigation facilities. A. (6.) INSTREAM MONITORING REQUIREMENTS [15A NCAC 02B .0200 et seq.] a. During the period beginning on the effective date of the permit and lasting until permit expiration, the Permittee shall perform instream sampling upstream and downstream of Outfall 001 as specified below. Instream monitoring is provisionally waived considering the Permittee's participation in the Lower Neuse Basin Association. Instream monitoring shall be immediately reinstated and the Division shall be notified immediately should the Permittee end its participation in the Association. PARAMETER Parameter Code SAMPLE TYPE' MONITORING FREQUENCY Sample Location' Jun I — Sep 30 Oct I —May 31 Dissolved Oxygen (DO) (niglL) 00300 Grab 3/week Weekly U, D Temperature (°C) 00010 Grab 3/week Weekly U, D Conductivity (prnhoslcm) 00094 Grab 3/week Weekly U, D PH (SU) 00400 Grab 3/week Weekly U, D Salinity (%o) 00480 Grab j 3lweek Weekly U, D Footnotes: L All upstream and downstream samples shall be grab samples. All instream samples shall be collected at one -foot intervals, measured vertically in the water column from the top to the bottom. 2. Sampling Locations: U = Upstream at Trap Landing; D = D1 + D2; D1 = Downstream at mid -channel across from Lewis Ferry; D2 = Downstream at mid -channel at US Highway 17. Page 7 of 17 DocuSign Envelope ID: 2D536D25-33EF-4FG0-9954-07BB8BC 1 13GG7 Permit NCO025348 A. (7.) CALCULATION OF TOTAL NITROGEN LOADS — NEUSE ESTUARY [NCGS 143-215.1(b)] a. The Permittee shall calculate monthly and annual TN Loads as follows: (i.) Monthly TN Load (lblmo) = TN x TMF x 8.34 where: TN = the average Total Nitrogen concentration (mg/L) of the composite samples collected during the month TMF = the Total Monthly Flow of wastewater discharged during the month (MG/month) 8.34 = conversion factor, from (mg/L x MG) to pounds (ii.) Annual TN Load (lblyr) = Sum of the 12 Monthly TN Loads for the calendar year b. The Permittee shall report monthly Total Nitrogen results (mg/L and lblmo) in the discharge monitoring report for that month and shall report each year's results (lblyr) in the December report for that year. A. (8.) ANNUAL LIMITS FOR TOTAL NITROGEN — NEUSE ESTUARY [NCGS 143-215. 1 (b)] a. Total Nitrogen (TN) allocations and TN Load limits for NPDES dischargers in the Neuse River basin apply on a calendar year basis. b. For any given calendar year, the Permittee shall be in compliance with the annual TN Load limit in this Permit if: (i.) the Permittee's annual TN discharge is less than or equal to its TN Load limit, or (ii.) the Permittee is a co-permittee member of a compliance association. C. If the Permittee is not a co-permittee member of a compliance association and the Permittee's cumulative annual TN discharge exceeds the effective TN Load limit in this permit at any point during the calendar year, the Permittee is in violation of its TN Load limit, and each day of a continuing violation shall constitute a separate violation. d. The TN Load limit in this Permit (if any) may be modified as the result of allowable changes in the Permittee's TN allocation. (i.) Allowable changes include those resulting from purchase of TN allocation from the Wetlands Restoration Fund; purchase, sale, trade, or lease of allocation between the Permittee and other dischargers; regionalization; and other transactions approved by the Division. (ii.) The Permittee may request a modification of the TN Load limit in this Permit to reflect allowable changes in its TN allocation. Upon receipt of timely and proper application, the Division will modify the permit as appropriate and in accordance with state and federal program requirements. (iii.) Changes in TN limits become effective on January 1 of the year following permit modification. The Division must receive application no later than August 31 for changes proposed for the following calendar year. (iv.) Application shall be sent to: North NCDWR 1 NPDES Wastewater Program Attn: Neuse River Basin Coordinator 1617 Mail Service Center Raleigh, NC 27699-1617 Page 8 of 17 DocuSlgn Envelope ID: 2D536D25-33EF-4FCO-9954-075585C18CC7 Permit NCO025348 e. If the Permittee is a member and co-permittee of an approved compliance association, its TN discharge during that year is governed by that association's group NPDES permit and the TN limits therein. (i.) The Permittee shall be considered a Co-Permittee Member for any given calendar year in which it is identified as such in Appendix A of the association's group NPDES permit. (ii.) Association roster(s) and members' TN allocations will be updated annually and in accordance with state and federal program requirements. (iii.) If the Permittee intends to join or leave a compliance association, the Division must be notified of the proposed action in accordance with the procedures defined in the association's NPDES permit. (A) Upon receipt of timely and proper notification, the Division will modify the permit as appropriate and in accordance with state and federal program requirements. (B) Membership changes in a compliance association become effective on January 1 of the year following modification of the association's permit. f. The TN monitoring and reporting requirements in this Permit remain in effect until expiration of this Permit and are not affected by the Permittee's membership in a compliance association. A. (9.) TOTAL NITROGEN ALLOCATIONS — NEUSE ESTUARY [NCGS 143-215.1(b)j a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred to the Permittee in accordance with the Neuse River nutrient management rule (T15A NCAC 02B .0700) and the status of each as of permit issuance. These allocations are not enforceable limits, nor do they supersede any TN limit(s) established elsewhere in this permit or in the NPDES permit of a compliance association of which the Permittee is a Co-Pennittee Member. ALLOCATION AMOUNT ALLOCATYPTION ION SOURCE DATE STATUS Estuary Discharge (lblyr) (lblyr) Base Assigned by Rule 2 1217197, 411103 52,937 52,937 Active Connection of Zachary Supplemental TaylorWWTP- 215/2002 5,632 5,632 Active NCO066613 Connection of Neuse Supplemental Woods Apartments 5/22'2(X)3 243 243 Active WWTP - NC4042430 Connection of W. Craven Supplemental Middle School WWTP - 8/12/2003 344 344 Active NCO029904 Connection of Neuse River Supplemental W&S WW T - 6/27/2005 2,022 2,022 Active NCO070084 Connection of Craven Co. Supplemental W&S WWTP— 6/30/2005 3,033 3,033 Active NCO056545 TOTAL 64,210 64,210 Active Footnotes: 1. Transport Factor = 100%. Values are displayed to the nearest pound per year. 2. Rule 15A NCAC 02B ,0713 (formerly 02B .0234) b. Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors) or any change to Active status of any of the listed allocations shall be considered a major modification of this permit and shall be subject to the public review process afforded such modifications under state and federal rules. Page 9 of 17 DocuSign Envelope ID: 2D536D25-33EF4FCO-9954-O7B68BC1BCC7 Permit NCO025348 A. (10.) SALTWATER -ACUTE TOXICITY PASS/FAIL LIMIT (QUARTERLY) [15A NCAC 02B .0200] [I5A NCAC 02B .0500 et seq] The Permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North Carolina Procedure Document entitled "Pass/Fail Methodology for Determining Acute Toxicity In A Single Effluent Concentration" (Revised December 2010, or subsequent versions). The monitoring shall be performed as a Mysid Shrimp (Mysidopsis hahia) 24-hour static test. The effluent concentration at which there may be at no time significant acute mortality is 90% (defined as treatment two in the procedure document). The tests will be performed during the months of March, June, September, and December. These months signify the first month of each three-month toxicity testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during representative effluent discharge (i.e., when including WTP discharge and not diverted to East Lake) and shall be performed at the NPDES permitted final effluent discharge below all treatment processes. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. All toxicity testing results required as part of this permit condition will be entered electronically using the Division's eDMR system for the month in which it was performed, using the parameter code TGE3E. Additionally, DWR Form AT-2 (original) is to be sent to the following address: North Carolina Division of Water Resources Water Sciences Section 1 Aquatic Toxicology Branch 1621 Mail Service Center Raleigh, NC 27699-1621 Or, results can be sent to the email, ATForms.ATB(&ncdenr.gov . Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete, accurate, include all supporting chemical/physical measurements and all concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No Flow" in the comment area of the form. The report shall be submitted to the Water Sciences Section at the address cited above. Should the Permittee fail to monitor during a month in which toxicity monitoring is required, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Assessment of toxicity compliance is based on the toxicity testing quarter, which is the three-month time interval that begins on the first day of the month in which toxicity testing is required by this permit and continues until the final day of the third month. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Resources indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow- up testing to be completed no later than the last day of the month following the month of the initial monitoring. Page 10 of 17 DocuSign Envelope IU: 2D536D25-33EF-4FCQ-9954-07BBBBCl8C:C7 Permit NCO025348 A. (11.) NON -DETECTION REPORTING AND DETERMINATION OF COMPLIANCE [NCGS 143-215. 1 (b)] When pursuant to this permit a pollutant analysis is conducted using an approved analytical protocol with the appropriate minimum detection level and a result of "non -detectable" or "below quantitation limit" is obtained, the Permittee shall record that result as reported. For the purpose of determining compliance with a permit limit for the pollutant, the numerical value of that individual analytical result shall be zero. Page 11 of 17 DocuSign Envelope ID: 2D536D25-33EF-4FCO-9954-07t3t38t3U1t3UU7 Permit NCO025348 A.(12.) ADDITIONAL MONITORING REQUIREMENTS FOR PERMIT RENEWAL [NCGS 143-215.1(b)] (a.) Effluent Pollutant Scans. The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below. One scan must be performed in each of the following years: 2024, 2025, and 2026. Analytical methods shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether parameters are present in concentrations greater than applicable standards and criteria. Each annual sample shall coincide with one quarterly toxicity test each year [see Condition A.(10.) SALTWATER -ACUTE TOXICITY PASSIFAIL LIMIT (QUARTERLY)]. and each must be collected in a different calendar quarter to represent seasonal variation [i.e., do not sample in the same quarter every year]. Unless otherwise indicated, metals shall be analyzed as "total recoverable." Ammonia (as N) C0610 Trans-1,2-dichlomethylene 34546 Bis (2-chloroethyl) ether 34273 Chlorine (total residual, TRC) 50060 l,l-dichloroethylene 34501 Bis (2-chloroisopropyl) ether 34283 Dissolved oxygen 00300 1,2-dichloropropane C0541 Bis (2-ethylhexyl) phthalate C0100 Nitrate 1 Nitrite 00630 1,3-dichloropropylene 77163 4-bromophenyl phenyl ether 34636 Kjeldahl nitrogen 00625 Etbylbenzene 34371 Butyl benzyl phthalate 34292 Oil and grease 00356 Methyl bromide 34413 2-chloronsphthalene 34581 Phosphorus C0665 Methyl chloride 34418 4-chlorophenyl phenyl ether 34641 Total dissolved solids 70295 Methylene chloride 34423 Chrysene 34320 Hardness 00900 1,1,2,2-tetrachloroethane 81549 Di-n-butyl phthalate 39110 Antimony 01097 Tetrachloroethylene 34475 Di-n-octyl phthalate 34596 Arsenic 01002 Toluene 34010 Dibenzo(a,h)anthracene 34556 Beryllium 01012 1,1,1-trichloroethane 34506 1,2-dichlorobenzene 34536 Cadmium 01027 1, 1,2-tri c h loroethane 34511 1,3-dichlorobenzene 34566 Chromium C0034 Trichloroethylene 39180 1,4-dichlorobenzene 34571 Copper 01042 Vinyl chloride 39175 3,3-dichlorobenzidine 34631 Lead 01051 Acid -extractable compounds. Diethyl phthalate 34336 Mercury (Method 1631 E) COMER P-chloro-m-cresol 34452 Dimethyl phthalate 34341 Nickel 01067 2-chlorophenol 34586 2,4-dinitrotoluene 34611 Selenium 01147 2,4-dichlorophenol 34601 2,6-dinitrotoluene C0626 Silver (PQL = t pglL) 01077 2,4-ditnethylphenol 34606 1,2-diphenylhydrazine 34346 Thallium 01059 4,6-dinitro-o-cresol 34657 Fluoranthene C0376 Zinc 01092 2,4-dinitrophenol 34616 Fluorene 34381 Cyanide 00720 2-nitrophenol 34591 Hexachlorobenzene C0700 Total phenolic compounds 32730 4-nitropbenol 34646 Hexachlorobutadiene C0702 Volayde organic compounds: Pentachlorophenol 39032 Hexachlnrocyclo-pentediene 34386 Acrolein 34210 Phenol 34694 Hexachloroethane 34396 Acrylonitrile 34215 2,4.6-trichlorophenol 34621 1ndeno(1,2,3-cd)pyrene 34403 Benzene 34030 Base -neutral compounds: lsophorone 34408 Bromoform 32104 Acenaphthene 34205 Naphthalene 34696 Carbon tetrachloride 32102 Acenaphthylene 34200 Nitrobenzene 34447 Chlorobenzene 34301 Anthracene CO220 N-nitrosodi-n-propyl a mine 34428 Chlorodibromomethane 34306 Benzidine 39120 N-nitrosodimethylamine 34438 Chloroethane 85811 Benzo(a)anthracene C0526 N-nitrosodiphenylamine 34433 2-chloroethyl vinyl ether 34S76 Benzo(a)pyrene 34249 Phenanthrene 34461 Chloroform 32106 3.4 benzofluoranthene 34230 Py1ene 34469 Diehl orobromomethane 32101 Benzo(ghi)perylene 34521 1,2,4-trichlorebenzene C0551 1,1-dichloroethane 34496 Benzo(k)fluoranthene 34242 1,2-dichloroethane 32103 Bis (2-chloroethoxy) methane 34278 (b.) Effluent Scan Reportin . Test results shall be reported electronically via eDMR by December 31 st of each designated sampling year, except that, subject to prior written approval by the Director, results can be Page 12 of 17 ❑ocu5ign tnvelope ID: 2D536D25-33EF-4FCO-9954-07BB8BCI5CC7 Permit NCO025348 reported on DWR Form DMR-PPA-I or other form approved by the Director. The permittee must at least report completion of the test in the eDMR system by entering "1 " or "Y" for parameter code NCO - Annual Pollutant Scan. If written reports are approved, the report shall be submitted to the following address: North Carolina Division of Water Resources Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Or the form may be uploaded at: https:l/edocs,deq.nc.goviFonns/NPDES_WW-EDMR-Supplemental- Form. (c) 2nd Svc ies Toxicity Testing and Reporting. (i.) In addition to the quarterly toxicity tests required in Condition A. (10.) SALTWATER -ACUTE TOXICITY PASS/FAIL LIMIT (QUARTERLY), the Permittee shall perform and report the results of four (4) toxicity tests using a second species and protocols defined as definitive in the EPA document EPA-821-R-02-012 entitled "Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms." The 2" d species toxicity test shall be performed as a Menidia beryllina (Inland Silverside) 48-hour static test. The LCso of this effluent using the previously stated methodology may at no time in any toxicity test be less than 90%. (ii.) The 2n6 species toxicity tests shall be conducted either: (A) Once per quarter in a single 12-month period (four samples); if this option is chosen, the sample for each 2" d species test shall coincide with the quarterly samples collected for Condition A. (10.) [SALTWATER -ACUTE TOXICITY PASS/FAIL LIMIT (QUARTERLY)],); or) (B) Once per 12-month period in the four -and one-half (4 ''1/2) year period prior to the scheduled application for permit renewal (four samples); if this option is chosen, three of the sample for the 2n4 species test shall coincide with those for the annual effluent scans and the coincident quarterly toxicity test, and each of the four annual samples shall be collected in a different calendar quarter in order to represent seasonal variation. (iii.) The results of the toxicity tests shall be submitted using the parameter code TCM6B to the following address: North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicology Branch I621 Mail Service Center Raleigh, North Carolina 27699-1621 Or, results can be sent to the email, ATForms.ATBPncdenr.gov. (iv.) Results of the god species tests shall also be summarized in Part E (Toxicity Testing Data) of EPA Municipal Application Form 2A when submitting the permit renewal application to the NPDES Wastewater Program. The Pennittee may contact the Division's Aquatic Toxicology Branch at 919-743-8401 for guidance on conducting the additional toxicity tests and reporting of the results. Page 13 of 17 Docu Sign Envelope ID: 2D536025-33EF-4FCO-9954-07B58BC1BCC'7 Permit NCO025348 A. (13.) ELECTRONIC REPORTING — DISCHARGE MONITORING REPORTS [NCGS 143-215.1(b)] Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21, 2015. NOTE: This special condition supplements or supersedes the following sections within Part Il of this permit (Standard Conditions for NPDES Permits): • Section B. (11.) Signatory Requirements • Section D. (2.) Reporting • Section D. (6.) Records Retention • Section E. (5.) Monitoring Reports 1. Reporting Reguirements ISupersedes Section D. (2.) and Section E. (5.) (a)I The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application. Monitoring results obtained during the previous month(s) shall be summarized for each month and submitted monthly electronically using eDMR. The eDM1R system allows permitted facilities to enter monitoring data and submit DMRs electronically using the internet. The eDMR system may be accessed at: https.//deq.nc.gov/about/divisions/watCT-TeSources/edmr. If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being physically located in an area where less than 10 percent of the households have broadband access, then a temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1. 1, 2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to the following address: North Carolina Division of Water Resources Central Files 1617 Mail Service Center Raleigh, North Carolina 27699-1617. See "How to Request a Waiver from Electronic Reporting" section below. Regardless of the submission method, the first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Starting on December 21, 2025, the Permittee must electronically report the following compliance monitoring data and reports, when applicable: • Sewer Overflow/Bypass Event Reports; • Pretreatment Program Annual Reports; and • Clean Water Act (CWA) Section 316(b) Annual Reports. The permittee may seek an electronic reporting waiver from the Division (see "How to Request a Waiver from Electronic Reporting" section below). 2. Electronic Submissions In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of each electronic submission. The Permittee should use the EPA's website resources to identify the initial recipient for the electronic submission. Page 14 of 17 DocuSign Envelope ID: 2D536D25-33E1-4FCO-9954-07BBBBC1BUG7 Permit NCO025348 Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity (EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for receiving electronic NPDES data [see 40 CFR 127.2(b)]. EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of electronic submission and for each state. Instructions on how to access and use the appropriate electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at: h s:llwww.fedemlre ister. ov/documents/2015Y I O/22/2015-24954/national- ollutant-dischw e- elimination-system-nudes-electronic-revortin I~ -rule. Electronic submissions must start by the dates listed in the "Reporting Requirements" section above. 3. How to Request a Waiver from Electronic Reporting The Permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the Division. Requests for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at least sixty (64) days prior to the date the facility would be required under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver shall not exceed five (5) years and shall thereupon expire. At such time, monitoring data and reports shall be submitted electronically to the Division unless the Pei it re -applies for and is granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request may submit monitoring data and reports on paper to the Division for the period that the approved reporting waiver request is effective. Information on eDMR and the application for a temporary electronic reporting waiver are found on the following web page: hgp://dgg.nc.gov/about/divisions/water-resources/edmr 4. Sienatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) Ml All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B. (I I.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting purposes. For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account and login credentials to access the eDMR system. For more information on North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account, please visit the following web page: hU.//deq.nc.gov/about/divisions/water-Tesources/edmr Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the following certification [44 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE ACCEPTED: "1 certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations. " Page 15 of 17 ❑ocu5ign Envelope ID: 2D536D25-33EF-0FC0-9954-07BBBBClBCC7 Permit NCO025348 S. Records Retention lSumlements Section D. (6.)1 The Permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These records or copies shall be maintained for a period of at least three (3) years from the date of the report. This period may be extended by request of the Director at any time [40 CFR 122.41 ]. Page 16 of 17 ❑ocuSign Envelope ID: 2D536025-33EF-4FC0-9954-075138BC18CC7 Permit NCO025348 r AMS Station ' ]825D000 High- Rate Infiltration Quarry Disposal System �+ Water Treatq»enf Pont -,A Disd ar¢e Point Dutfal001 - U Long. 77- 0337' ❑1 Wastewater '• Tnmtment Plant Jk�' 3�t. - y+1 VICINITY MAP City of New Bern NCO025348 New Bern Wastewater Treatment Plant and x Water Treatment Plant Facilely Loc'. Receiving Stream: Neese River N Stream Classification: 5C-Swamp NSW USGS Quad: G30NE River Basin: Neuse (New Bern) Sub -Basin *: 03-04-10 Assessment Number: 27-(96)61 Page 17 of 17