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HomeMy WebLinkAboutWQ0002829_Final Permit_20161209Water Resources ENVIRONMENTAL QUAI.ITY PAT MCCRORY Governor DONALD R. VAN DER VAART Secretary S. JAY ZIMMERMAN Drrector December 9, 2016 GEORGE E. GOODRICH — MANAGING MEMBER KDHWWTP, L.L.C. POST OFFICE BOX 3629 KILL DEVIL HILLS, NORTH CAROLINA 27948 Dear Mr. Goodrich:. Subject: Permit No. WQ0002829 KDHWWTP High -Rate Infiltration and Non - Conjunctive Reclaimed Utilization System Dare County In accordance with your permit major modification request received February 17, 2016, and subsequent additional information received June 14, 2016, July 8, 2016, August 22, 2016, September 12, 2016, and October 28, 2016, we are forwarding herewith Permit No. WQ0002829 dated December 9, 2016, to KDHWWTP, L.L.C., for the continued operation of the high -rate infiltration and non -conjunctive reclaimed utilization facilities, as well as the continued operation and subsequent modification of the existing wastewater treatment facilities. The modifications to the subject permit are as follows: ❖ The facility description has been revised to allow for modification of the existing wastewater treatment plant from a conventional activated sludge extended aeration plant to a 5-stage Bardenpho process with Integrated Fixed Film Activated Sludge. Modification of the existing plant to this biological nitrogen removal (BNR) process will be accomplished by adding internal baffle walls to the basins, adding mixers to the basins to keep the wastewater moving, and adding media to the basins so that both suspended growth and attached growth microbes will function as part of the treatment process. In addition to nitrogen removal, this process will also achieve phosphorus removal with a design Total Nitrogen removal to 7 mg/L and a design Total Phosphorus removal to 3 mg/L. This permit shall be effective from the date of issuance until August 31, 2018, shall void Permit No. WQ0002829 issued September 28, 2009, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements listed in Attachments A, B and C for they may differ from the previous permit issuance. Failure to establish an adequate system for collecting and maintaining the required operational information shall result in future compliance problems. Please note the following permit conditions have been removed since the last permit issuance dated September 28, 2009: ➢ Old Condition I1.7. — This condition has been deleted because it is covered under Condition III.16. State oFNorth Carolina I Environmental Quality I Water Resources R Water Quality Permitting I Nan -Discharge Permitting 1617 Mail Service Center j Raleigh, North Carolina 27699-1617 919 807 6464 Mr. George E. Goodrich December 9, 2016 Page 2 of 2 ➢ Old Condition 11.8. — This condition has been deleted because it is covered under Conditions II. L and III.4. ➢ Old Condition I11.16. — This condition has been removed because it is covered under Condition IV.11. ➢ Old Condition III.19. — This condition has been removed because it is covered under Conditions II.1. and III.1. Please note the following permit conditions are new since the last permit issuance dated September 28, 2009: ➢ Condition 1.1. — States requirements for certification of construction by a North Carolina licensed Professional Engineer upon completion of facility construction and modifications. ➢ Condition I.2. — States requirements for notification of the Division of Water Resources Regional Office prior to startup of the modified facility. ➢ Condition I11.18. — States requirements for testing and calibrating the turbidimeter. ➢ Condition 1V.9. — States requirement for submittal of an annual report to the Division of Water Resources. If any parts, requirements or Iimitations contained in this permit are unacceptable, the Permittee has the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request shall 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 at 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding. One set of approved plans is being forwarded to you. If you need additional information concerning this permit, please contact David Schlobohm at (919) 807-6384 or david.schlobohm ncdenn ov. Sincerely, ;�Z-S. Jay Zimmerman, P.G., Direc Division of Water Resources cc: Dare County Health Department (EIectronic Copy) Washington Regional Office, Water Quality Regional Operations Section (Electronic Copy) Joseph J. Aniauf, PE — Anlauf Engineering, PLLC (Electronic Copy) Beth Buffington, Public Water Supply Section — Protection and Enforcement Branch (Elect. Cpy) Digital Permit Archive (Electronic Copy) Central Files NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENTAL QUALITY RALEIGH HIGH -RATE INFILTRATION AND NON -CONJUNCTIVE RECLAIMED UTILIZATION SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of Forth Carolina as amended, and other applicable Laws, Rules and Regulations PERMISSION IS HEREBY GRANTED TO KDHWWTP, L.L.C. Dare County I.1161"M11:10 operation of a 500,000 gallon per day (GPD) permitted flow facility with a 660,000 GPD wastewater treatment plant and a 500,000 GPD high -rate infiltration and non -conjunctive reclaimed utilization disposal system consisting of the: continued operation of a 660,000 GPD wastewater treatment plant consisting of: a manually cleaned aluminum bar screen prior to the 43,00 gallon flow equalization basin A; a 43,000 gallon aerated flow equalization basin A; a 118,000 gallon aerated flow equalization basin C; a 38,630 gallon aerated flow equalization basin B with two 416 gallon per minute (GPM) equalization pumps; an aluminum flow splitter box; a 312,000 gallon aeration Train A (see paragraph below for modifications); a 310,000 gallon aeration Train B (see paragraph below for modifications); two 91,000 gallon clarifiers with rotating skimmers and served by two 600 GPM variable speed sludge return pumps; a 35,000 gallon filter dosing tank with two 833 GPM filter dosing pumps; two 156 square foot (ft2) rapid sand filters served by a 781 cubic foot per minute (CFM) air scour blower; a 20,000 gallon mudwell with two 280 GPM return pumps; two 71,655 aerated sludge digesters with a decant pump; four 1,479 CFM rotary positive blowers and an 800 CFM centrifugal blower serving the flow equalization, aeration, and sludge digester basins; a 50,000 gallon clearwell with two 957 GPM pumps; an effluent flow meter; a turbidimeter; an ultraviolet (UV) disinfection system with four banks each rated at 400,000 GPD; a stand-by power system consisting of a 45 kilowatt (kW) generator; and a 115 kW generator; and all associated piping, valves, controls and appurtenances; the continued operation and subsequent conversion of the existing 312,000 gallon aeration Train A into: a 70,097 gallon pre -anoxic Zone I with four two horsepower (hp) mixers; a 32,903 aeration Zone 1A with HDPE media; a 47,208 gallon aeration Zone 1B with HDPE media; a 55,791 gallon aeration Zone 2A with HDPE media; a 24,319 gallon aeration Zone 213 with HDPE media and two 350 GPM recycle pumps; a 55,791 gallon post -anoxic Zone I with three 2 hp mixers; a 22,889 re -aeration Zone 1; and all associated piping, valves, controls, and appurtenances; the continued operation and subsequent abandonment of: a manually cleaned aluminum bar screen prior to the 118,000 gallon flow equalization basin C; and all associated piping, valves, controls, and appurtenances; the WQ0002829 Version 2.1 Shell Version 151201 Page 1 of 12 continued operation and subsequent conversion of the existing 310,000 gallon aeration Train B into: a 70,195 gallon pre -anoxic Zone 2 with two 4 hp mixers; an 84,234 gallon aeration Zone 3 with HDPE media; an 81,426 gallon aeration Zone 4 with HDPE media and two 350 GPM recycle pumps; a 56,156 gallon post -anoxic Zone 2 with two 3 hp mixers; a 16,846 gallon re -aeration Zone 2; and all associated piping, valves, controls and appurtenances; the construction and operation of: a rotary drum fine screen with 3 to 6 millimeter (mm) openings; a chemical feed system with a 55 gallon drum and a chemical metering pump supplying alkalinity to the existing aluminum flow splitter box; a chemical feed system with a 55 gallon drum and a chemical metering pump supplying carbon to the 55,791 gallon post -anoxic Zone 1; a chemical feed system with a 55 gallon drum and a chemical metering pump supplying alum to the 22,889 re -aeration Zone 1; a chemical feed system with a 55 gallon drum and a chemical metering pump supplying carbon to the 56,156 gallon post -anoxic Zone 2; a chemical feed system with a 55 gallon drum and a chemical metering pump supplying alum to the 16,846 gallon re -aeration Zone 2; and all associated piping, valves, controls and appurtenances; the construction and operation of modifications permitted November 5, 2008 consisting of: two 416 GPM flow equalization pumps for a build -out total of four 416 GPM flow equalization pumps; additional diffuser assemblies for the equalization basins; additional diffuser assemblies for the aeration basins; additional diffuser assemblies for the re -aeration zones; a 833 GPM filter dosing pump for a build -out of three 833 GPM filter dosing pumps; a 957 GPM clearwell pump for a build -out of three 957 GPM clearwell pumps; and all associated piping, valves, controls, and appurtenances; the continued operation of a high -rate spray infiltration system consisting of: three 7.5 hp pumps; seven 15 hp pumps; approximately 1.35 acres of high -rate spray infiltration onto eight beds; and all associated piping, valves, controls, and appurtenances; the continued operation of an infiltration pond system consisting of: a 2,000 gallon pump station with two 7.5 hp pumps and alarms; two interconnected infiltration ponds (i.e., Pond 1) with a cumulative disposal area of 2.1 acres; and all associated piping, valves, controls, and appurtenances; and the continued operation of a non -conjunctive reclaimed water utilization system consisting of: an irrigation pump station with a 25 hp pump and a 3 hp pump; approximately 24.55 acres of irrigation area within seven zones; an all associated piping, valves, controls, and appurtenances to serve the KDHWWTP, with no discharge of wastes to the surface waters, pursuant to the application received February 17, 2016, and subsequent additional information received by the Division of Water Resources, and in conformity with the project plans, specifications, and other supporting data subsequently filed and approved by the Department of Environmental Quality and considered a part of this permit. This permit shall be effective from the date of issuance until August 31, 2018, shall void Permit No. WQ0002829 issued September 28, 2009, and shall be subject to the following specified conditions and limitations: I. SCHEDULES i . Upon completion of construction and prior to operation of the modified permitted facility, a certification (attached) shall be submitted from a licensed North Carolina Professional Engineer certifying that the modified permitted facilities have been installed in accordance with this permit, Division approved plans and specifications, and other supporting documentation, including the location of all monitoring wells as applicable. if this project is to be completed in phases and partially certified the Permittee shall retain the responsibility to track further construction approved under the same permit, and shall provide a final certificate of completion once the entire project has been completed. Mail the Certification to the Division of Water Resources, Water Quality Permitting Section, 1617 Mail Service Center, Raleigh, NC 27699-1617. [15A NCAC 02T .0116(a)] WQ0002829 Version 2.1 Shell Version 151201 Page 2 of 12 2. The Washington Regional Office, telephone number (252) 946-6481, shall be notified at least 48 hours in advance (excluding weekends and holidays) of operation of the installed facilities such that an in - place inspection can be made. Notification to the regional supervisor shall be made from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. [15A NCAC 02T .0108(b)(2)] 3. No later than six months prior to the expiration of this permit, the Permittee shall request renewal of this permit on official Division forms. Upon receipt of the request, the Division will review the adequacy of the facilities described therein, and if warranted, will renew the permit for such period of time and under such conditions and limitations as it may deem appropriate. Please note Rule 15A NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal application. [ 15A NCAC 02T .0105(d), 02T .0106, 02T .0109, 02T .0115(c)] 4. If the subject wastewater treatment, high -rate infiltration, or non -conjunctive reclaimed utilization facilities are in noncompliance with the terms and conditions of this permit, governing statutes or regulations, the subject facilities shall be connected to an operational publicly owned wastewater collection system within 180 days of its availability. Prior to the initiation of these connection activities, appropriate Division approval shall be received. [15A NCAC 02H .0404(e)] II. PERFORMANCE STANDARDS The subject non -discharge facilities shall be effectively maintained and operated at all times so there is no discharge to surface waters, nor any contravention of groundwater or surface water standards. In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions due to improper operation and maintenance, or failure of the high -rate infiltration or non -conjunctive reclaimed utilization areas to adequately assimilate the effluent, the Permittee shall take immediate corrective actions including Division required actions, such as the construction of additional or replacement wastewater treatment, infiltration, or utilization facilities. [G.S. 143-215.1, 143-213.3(a)] 2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface water resulting from the operation of this facility. [15A NCAC 02B .0200, 02L .0100] 3. All wells constructed for purposes of groundwater monitoring shall be constructed in accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water Supply), and any other jurisdictional laws and regulations pertaining to well construction. [15A NCAC 02C .0108] 4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T .0108(b)(1), 02U .03001 5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in Attachment B. [15A NCAC 02T ,0705(m), 02U .0401(g), 02U .0402(m)] 6. A usable green area shall be maintained for effluent disposal. The green area shall contain at least 1,000 square feet of open green area for each residential unit served, or 2,500 square feet per thousand gallons per day of waste flow, whichever is less. A green area is defined as an area suitable for waste disposal, either in its natural state or which has been modified by planting a vegetative cover of grasses or low growing shrubbery. [15A NCAC 02H .0404(g)(7)] WQ0002829 Version 2.1 Shell Version 151201 Page 3 of 12 7. The following shall be requirements for the reclaimed water distribution and utilization facilities: a. All reclaimed water valves, storage facilities and outlets shall be tagged or labeled to warn the public or employees that reclaimed water is not intended for drinking. Where appropriate, such warning shall inform the public or employees to avoid contact with reclaimed water. b. All reclaimed water piping, valves, outlets and other appurtenances shall be color -coded, taped or otherwise marked to identify the source of the water as being reclaimed water. i. AlI reclaimed water piping and appurtenances shall be either colored purple (i.e., Pantone 522) and embossed or integrally stamped or marked "CAUTION: RECLAIMED WATER — DO NOT DRINK" or be installed with a purple (i.e., Pantone 522) identification tape or polyethylene vinyl wrap. The warning shall be stamped on opposite sides of the pipe and repeated every three feet or less. ii. Identification tape shall be at least three inches wide and have white or black lettering on purple (i.e., Pantone 522) field stating "CAUTION: RECLAIMED WATER — DO NOT DRINK." Identification tape shall be installed on reclaimed water pipelines in a visible manner, fastened at least every 10 feet to each pipe length and run continuously the entire length of the pipe. iii. Existing underground distribution systems retrofitted for the purpose of distributing reclaimed water shall be taped or otherwise identified as noted above. This identification need not extend the entire length of the distribution system, but shall be incorporated within 10 feet of crossing any potable water supply line or sanitary sewer line. c. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits operation by authorized personnel only. d. Hose bibs shall be located in locked, below grade vaults that shall be labeled as being of non - potable quality. As an alternative to the use of locked vaults with standard hose bib services, other locking mechanisms such as hose bibs which can only be operated by a tool may be placed above ground and labeled as non -potable water. [I 5A NCAC 02U .0403] 8. No direct cross -connections shall be allowed between reclaimed water and potable water systems, unless such connection has been approved by the Department pursuant to 15A NCAC 18C .0406. [15A NCAC 02U ,0403(f)] 9. The compliance and review boundaries for the reclaimed utilization system (i.e., Pond I and irrigation areas permitted prior to September 1, 2006) are established at the property boundary. Any exceedance of standards at the compliance or review boundary shall require action in accordance with 15A NCAC 02L .0106. [15A NCAC 02H .0219(k)(1)(C)(i)(Ul)] 10. The high -rate infiltration system was individually permitted on or after December 30, 1983; therefore, the compliance boundary is established at either 250 feet from the effluent disposal area, or 50 feet within the property boundary, whichever is closest to the effluent disposal area. An exceedance of groundwater standards at or beyond the compliance boundary is subject to remediation action according to 15A NCAC 02L .0106(d)(2) as well as enforcement actions in accordance with North Carolina General Statute 143-215.6A through 143-215.6C. [15A NCAC 02L A106(d)(2), 02L .0107(b)] 11. In accordance with 15A NCAC 02L .0108, the review boundary for the high -rate infiltration system is established midway between the compliance boundary and the effluent disposal area. Any exceedance of groundwater standards at the review boundary shall require action in accordance with 15A NCAC 02L .0106. [15A NCAC 02L .0106, 02L .0108] 12. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to any sale or transfer of property affecting a compliance boundary. [15A NCAC 02L .0107(c)] WQ0002829 Version. 2.1 Shell Version 151201 Page 4 of 12 13. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L .0107(g). [ I5A NCAC 02L .01071 14. Except as provided for in 15A NCAC 02L .0107(g), the Pertnittee shall ensure any landowner who is not the Permittee and owns land within the compliance boundary shall execute and file with the Dare County Register of Deeds an easement running with the land containing the following items: a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1); b. Prohibits construction and operation of water supply wells within the compliance boundary; and c. Reserves the right of the Permittee or the State to enter the property within the compliance boundary for purposes related to the permit. The Director may terminate the easement when its purpose has been fulfilled or is no longer needed. [15A NCAC 02L .0107(f)] 15. The facilities permitted herein shall be constructed according to the following setbacks: a. The setbacks for high -rate infiltration sites permitted under 15A NCAC 02H .0200 and 02H .0400 shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly owned by the Permittee: 10 ii. Any private or public water supply source: 100 iii. Surface waters: 200 iv. Groundwater lowering ditches: 200 v. Surface water diversions: 200 vi. Any well with exception of monitoring wells: 100 vii. Any property line: 50 viii. Subsurface groundwater lowering drainage systems: 200 ix. Public right of way: 50 x. Impounded public water supplies: 500 xi. Public shallow groundwater supply: 500 [15A NCAC 02H .02190), 02H .0404(g)] b. The setbacks for reclaimed utilization sites (i.e., Pond I and irrigation areas permitted prior to September 1, 2006) shall be as follows (all distances in feet): L Surface waters not classified SA: 25 ii. Surface waters classified SA: 100 iii. Any well with exception to monitoring wells: 100 [ 15A NCAC 02H .0219(k)] c. The setbacks for storage and treatment units permitted under 15A NCAC 02H .0200 shall be as follows (all distances in feet): i. Any well with exception of monitoring wells: ii. Any property line: [15A NCAC 02T .02190)] 100 50 WQ0002829 Version 2.1 Shell Version 151201 Page 5 of 12 III. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater resulting from the operation of this facility. The Permittee shall maintain an Operation and Maintenance Plan, which at a minimum shall include operational functions, maintenance schedules, safety measures and a spill response plan. [15A NCAC 02T .0707] 2. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC) classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or more certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the previously cited rules. [15A NCAC 02T .0117] 3. A suitable year round vegetative cover on the non -conjunctive utilization sites shall be maintained at all times, such that crop health is optimized, allows for even distribution of effluent and allows inspection of the reclaimed utilization system. [15A NCAC 02T .0108(b)(1)] 4. Adequate measures shall be taken to prevent effluent ponding in or runoff from the infiltration and irrigation sites listed in Attachment B. [15A NCAC 02T .0108(b)(1)] 5. AlI waste application equipment shall be tested and calibrated at least once per permit cycle. Calibration records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. [15A NCAC 02T .0108(b)(1)] 6. Only effluent from KDHWWTP shall be disposed on the sites listed in Attachment B. [G.S. 143-215.1] 7. An automatically activated standby power source capable of powering all essential treatment units shall be on site and operational at all times. If a generator is employed as an alternate power supply, it shall be tested weekly by interrupting the primary power source. [15A NCAC 02H .0404(g)(3)] 8. No automobiles or machinery shall be allowed on the disposal sites except during equipment installation or while maintenance is being performed. [15A NCAC 02T .0108(b)(1)] 9. Public access to the high -rate infiltration sites and wastewater treatment facilities shall be prohibited. [I 5A NCAC 02T .0705(p)] 10. Public access to reclaimed water utilization sites shall be controlled during active site use. Such controls may include the posting of signs showing the activities being conducted at each site. [15A NCAC 02U .0501] 11. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in accordance with 15A NCAC 02T .I 100. The Permittee shall maintain a residual management plan pursuant to 15A NCAC 02T .0708. [15A NCAC 02T .0708, 02T .1100] 12. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is prohibited. [15A NCAC 02T ,0705(i)] 13. Freeboard in the infiltration basin (i.e., Pond 1) shall not be less than two feet at any time. [ 15A NCAC 02T .0705(c)] 14. A gauge to monitor waste levels in the infiltration basin (i.e., Pond 1) shall be provided. This gauge shall have readily visible permanent markings, at inch or tenth of a foot increments, indicating the following elevations: maximum liquid level at the top of the temporary liquid storage volume; minimum liquid level at the bottom of the temporary liquid storage volume; and the lowest point on top of the dam. [ 15A NCAC 02T .0108(b)(1)] WQ0002829 Version 2.1 Shell Version 151201 Page 6 of 12 15. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e., outside toe of embankment to maximum allowable .temporary storage elevation on the inside of the embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen embankment areas shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02T .0108(b)(1)] 16. All effluent shall be routed to the high -rate infiltration spray beds 1-A and 1-B should the limit for fecal coliform (e.g., daily maximum concentration of 25 colonies per 100 mL) or turbidity (e.g., instantaneous maximum of 10 NTU) be exceeded, until the problems associated with the wastewater treatment plant have been corrected. [15A NCAC 02T .0108(b)(1)] 17. The infiltration basin (i.e., Pond 1) shall be periodically cleaned to remove deposited materials that may impede the infiltration process. Cleaning records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. The Washington Regional Office, telephone number (252) 946-6481, shall be notified prior to each cleaning. [15A NCAC 02T .0108(b)(1)] 18. The turbidimeter shall be tested and calibrated at a minimum of once per year. Calibration records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. [15A NCAC 02T .0108(b)(1)] 19. Spray beds shall be raked as needed and all vegetation shall be kept out of the spray beds at all times. The spray beds shall also be raked when solids and ruts develop within the beds, which results in uneven infiltration. [15A NCAC 02T .0108(b)(1)] 20. The application of chemicals to the high -rate infiltration spray beds is expressly prohibited. [15A NCAC 02T .0108(b)(1)] 21. Adequate measures shall be taken to divert stormwater from the high -rate infiltration sites, the infiltration basin, and the non -conjunctive reclaimed irrigation areas. [15ANCAC 02T .0108(b)(1)] IV. MONITORING AND REPORTING REQUIREMENTS 1. Any Division required monitoring (including groundwater, plant tissue, soil and surface water analyses) necessary to ensure groundwater and surface water protection shall be established, and an acceptable sampling reporting schedule shall be followed. [ 15A NCAC 02T .0108(c)] 2. A Division certified laboratory shall conduct all laboratory analyses for the required effluent, groundwater or surface water parameters. [15A NCAC 02H .0800] 3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be reported on Form NDMR. The Permittee shall install and maintain an appropriate flow measurement device to ensure the accuracy and reliability of flow measurement consistent with accepted engineering and scientific practices. Selected flow measurement devices shall be capable of measuring flows with a maximum deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year; and maintained to ensure the accuracy of measurements is consistent with the selected device's accepted capability. The Permittee shall maintain records of flow measurement device calibration on file for a period of at least five years. At a minimum, documentation shall include: a. Date of flow measurement device calibration, b. Name of person performing calibration, and c. Percent from true flow. [I 5A NCAC 02T .0105(k)] WQ0002829 Version 2.1 Shell Version 151201 Page 7 of 12 4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for the parameters specified in Attachment A. [15A NCAC 02T .0108(c)] 5. The Permittee shall maintain adequate records tracking the amount of effluent infiltrated. At a minimum, these records shall include the following information for each infiltration and irrigation site listed in Attachment B: a. Date of infiltration; b. Volume of effluent infiltrated; c. Site infiltrated; d. Loading rates to each infiltration site listed in Attachment B; and e. Weather conditions. [15A NCAC 02T .0108(c)] 6. The Permittee shall maintain adequate records tracking the amount of reclaimed water utilized. Records shall be maintained for a minimum of five years. At a minimum, these records shall include the following information for each utilization site listed in Attachment B: a. Date of reclaimed water utilization; b. Volume of reclaimed water irrigated; c. Site irrigated; d. Length of time site is irrigated; e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings; £ Weather conditions; and g. Maintenance of cover crops. [ 15A NCAC 02T .0108(c)] 7. Freeboard (i.e., waste level to the lowest embankment elevation) in Pond I shall be measured to the nearest inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. [15A NCAC 02T .0108(c)] Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Forth NDMR for each PPI, three copies of all operation and utilization records (as specified in Condition IV.6.) on Form NDAR-1 for every non -conjunctive utilization site listed in Attachment B, and three copies of all operation and disposal records (as specified in Conditions IV.5. and IV.7.) on Form NDAR-2 for every infiltration site in Attachment B shall be submitted on or before the last day of the following month. If no activities occurred during the monitoring month, monitoring reports are still required documenting the absence of the activity. All information shall be submitted to the following address: Division of Water Resources Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [15A NCAC 02T .0105(1)] WQ0002829 Version 2.1 Shell Version 151201 Page 8 of 12 9. Pursuant to § 143-215.1 C., the Permittee shall provide to its users and the Division of Water Resources an annual report summarizing the performance of the wastewater treatment, high -rate infiltration, and reclaimed utilization facility and the extent to which the facility has violated this permit, or federal or State laws, regulations, or rules related to the protection of water quality. This report shall be prepared on either a calendar or fiscal year basis and shall be provided no later than 60 days after the end of the calendar or fiscal year. Two copies of the annual report provided to the Permittee's users shall be submitted to: Division of Water Resources Water Quality Permitting Section 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [G.S. 143-215.1C] 10. A record shall be maintained of all residuals removed from this facility. This record shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, this record shall include: a. Name of the residuals hauler; b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality agreeing to accept the residuals; c. Date the residuals were hauled; and d. Volume of residuals removed. [15A NCAC 02T .0108(b)(1)] 11. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, this log shall include: a. Date and results of power interruption testing on alternate power supply; b. Date of calibration of flow measurement device; c. Date of calibration of turbidimeter; d. Visual observations of the plant and plant site; e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections and cleanings, etc.); and f. Dates high -rate infiltration beds were raked and inspected. [15ANCAC 02T .0108(b)(1)] 12. Monitoring wells shall be sampled at the frequencies and for the parameters specified in Attachment C. All mapping, well construction forms, well abandonment forms and monitoring; data shall refer to the permit number and the well nomenclature as provided in Attachment C and Figure 1. [15A NCAC 02T ,0105(m)] 13. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last working day of the month following the sampling month. The Compliance Monitoring Form (GW-59) shall include this permit number, the appropriate well identification number, and one GW-59a certification form shall be submitted with each set of sampling results. All information shall be submitted to the following address: Division of Water Resources Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [15A NCAC 02T .0105(m)] WQ0002829 Version 2.1 Shell Version 151201 Page 9 of 12 14. Noncompliance Notification: The Permittee shall report by telephone to the Washington Regional Office, telephone number (252) 946-6481, 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. Treatment of wastes abnormal in quantity or characteristic, including the known passage of a hazardous substance. b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons, rendering the facility incapable of adequate wastewater treatment. c. Any facility failure resulting in a by-pass directly to receiving surface waters. d. Any time self -monitoring indicates the facility has gone out of compliance with its permit limitations. e. Ponding in or runoff from the infiltration and irrigation sites. f. Effluent breakout from the infiltration basin. Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733-3300. Persons reporting such occurrences by telephone shall also file a written report in letter form within five days following first knowledge of the occurrence. This report shall outline the actions taken or proposed to betaken to ensure the problem does not recur. [15A NCAC 02T .0105(1), 02T .0108(b)(1)] 1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the wastewater treatment, high -rate infiltration, and reclaimed utilization facilities. [15A NCAC 02T .0108(b)] 2. The Permittee or their designee shall inspect the wastewater treatment, high -rate infiltration and reclaimed utilization facilities to prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may cause the release of wastes to the environment, a threat to human health or a public nuisance. The Permittee shall maintain an inspection log that includes, at a minimum, the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken. The Permittee shall maintain this inspection log for a period of five years from the date of the inspection, and this log shall be made available to the Division upon request. [15A NCAC 02T .0108(b)] Any duly authorized Division representative may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the wastewater treatment, high -rate infiltration and reclaimed utilization facilities permitted herein at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records required to be maintained under the terms and conditions of this permit, and may collect groundwater, surface water or leachate samples. [G.S. 143-21.5.3(a)(2)] VI. GENERAL CONDITIONS 1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statutes 143-215.6A to 143-215.6C. [G.S. 143-215.6A to 143-215.6C] 2. This permit shall become voidable if the permitted facilities are not constructed in accordance with the conditions of this permit, the Division approved plans and specifications, and other supporting documentation. [15A NCAC 02T .0110] WQ0002829 Version 2.1 Shell Version 151201 Page 10 of 12 3. This permit is effective only with respect to the nature and volume of wastes described in the permit application, Division approved plans and specifications, and other supporting documentation. No variances to applicable rules governing the construction or operation of the permitted facilities are granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T .0105(n). [G. S. 143-21.5.1 ] 4, The issuance of this permit does not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other jurisdictional government agencies (e.g., local, state, and federal). Of particular concern to the Division are applicable river buffer rules in 15A NCAC 02B .0200; erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under General Permit NCGO10000; any requirements pertaining to wetlands under 15A NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of the General Statutes. [15A NCAC 02T .0105(c)(6)] 5. In the event the permitted facilities change ownership or the Permittee changes their name, a formal permit modification request shall be submitted to the Division. This request shall be made on official Division forms, and shall include appropriate property ownership documentation and other supporting documentation as necessary. The Permittee of record shall remain fully responsible for maintaining and operating the facilities permitted herein until a permit is issued to the new owner. [15A NCAC 02T .0104] 6. The Permittee shall retain a set of Division approved plans and specifications for the life of the facilities permitted herein. [15A NCAC 02T .0108(b)(1)] The Permittee shall maintain this permit until all permitted facilities herein are properly closed or permitted under another permit issued by the appropriate permitting authority. [15A NCAC 02T .0105G)] 8. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division Director, in whole or part for the requirements listed in 15A NCAC 02T .0110. [ 15A NCAC 02T .0110] 9. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). [15A NCAC 02T .0120] 10. The Permittee shall pay the annual fee within 30 days after being billed by the Division. Failure to pay the annual fee accordingly shall be cause for the Division to revoke this permit. [15A NCAC 02T .0105(e)(3)] Permit issued this the 9' day of December 2016 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION r- JS. Jay Zimmerman, P.G., Director Division of Water Resources By Authority of the Environmental Management Commission Permit Number WQ0002829 WQ0002829 Version 2.1 Shell Version 151201 Page 11 of 12 Permit No. WQ0002829 High -Rate Infiltration and Non -Conjunctive Reclaimed Utilization System KDHWWTP, L.L.C. December 9, 2016 KDHWWTP Dare County ENGINEERING CERTIFICATION ❑ Partial ❑ Final In accordance with 15A NCAC 02T .0116,1, , as a duly registered Professional Engineer in the State of North Carolina, having the Permittee's authorization to ❑ periodically ❑ weekly ❑ fully observe the construction of the permitted facility, hereby state to the best of my abilities that due care and diligence was used in the observation of the construction, such that the facility was built within substantial compliance and intent of this permit, the Division -approved plans and specifications, and other supporting documentation. ❑ Any variation to this permit, the Division -approved plans and specifications, and other supporting documentation has been documented in the attached as -built drawings, and shall serve as the Permittee's minor modification request to amend the permit accordingly. Provide a brief narrative description of any variations: THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING INFORMATION AND MATERIALS, SHALL BE SENT TO THE FOLLOWING ADDRESS: NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES WATER QUALITY PERMITTING SECTION NON -DISCHARGE PERMITTING UNIT By U.S. Postal Service: 1617 MAIL SERVICE CENTER By Courier/Special DelivM: 512 N. SALISBURY ST. RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604 WQ0002829 Version 2.1 Shell Version 151201 Page 12 of 12 ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS PPI 001— Total Effluent Disposed Permit Number: WQ0002829 Version: 2.1 EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCs Code Parameter Description Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 50050 Flow, in Conduit or thru Treatment Plant GPD 500,000 Continuous Recorder PPI 002 — High -Rate Infiltration Effluent EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code Parameter ➢escription Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 00310 BOD, 5-Day (20 °C) mg/L 10 Weekly' / 2 x Month 2 Composite 00940 Chloride (as Cl) mg/L 3 x Year 3 Composite 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 14 43 Weekly' / 2 x Month 2 Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 327,735 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 Weekly 112 x Month 4 Composite 00625 Nitrogen, Kjeldahl, Total (as N) mg/L Weekly' / 2 x Month 2 Composite 00620 Nitrogen, Nitrate Total (as N) mg/L Weekly' / 2 x Month 2 Composite 00600 Nitrogen, Total (as N) mg/L Weekly' / 2 x Month 2 Composite 00400 pH su 1 6 9 5 x Week Grab 00665 Phosphorus, Total (as P) mg/L Weekly I / 2 x Month a Composite 70300 Solids, Total Dissolved — 180'C mg/L 3 x Year 3 Composite 00530 Solids, Total Suspended mg/L 20 Weekly' / 2 x Month 2 Composite 1. Weekly sampling shall be conducted from May 11 through August 3151, 2. 2 x Month sampling shall be conducted from September 111 through April 30u1. 3. 3 x Year monitoring shall be conducted in January, April, and September W Q0002829 Version 2,1 Attachment A Page 1 of 2 PPI 003 — Non -Conjunctive Reclaimed Utilization Effluent EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PC5 Parameter Description Units of Code on Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Sample Frequency 9 Y Type YP 00310 BOD, 5-Day (20 °C) mg/L 10 15 Weekly ' / 2 x Month 2 Composite 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 14 25 Weekly' / 2 x Month 2 Grab 00610 Nitrogen, Ammonia Total (as N) mg/L 4 6 Weekly' / 2 x Month 2 Composite 00400 pH su 6 9 5 x Week Grab 00530 Solids, Total Suspended mg/L 5 10 Weekly' / 2 x Month 2 Composite 00076 1 Turbidity, HCH Turbidimeter NTU 1 10 Continuous Recorder 1, Weekly sampling shall be conducted from May 11 through August 311. 2. 2 x Month sampling shall be conducted from September 1' through April 30'. PPI 004 — Reclaimed Water Distributed for Infiltration EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Units of CodeF Parameter Description Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Sample FrequencyT e Type 50050 Flow, in Conduit or thru Treatment Plant GPD 136,283 Continuous Recorder PPI 005 — Reclaimed Water Distributed for Irrigation EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code Parameter Descriti pon Units of Measure Monthly Average Monthly Geometric Mean Dal y Minimum Daily Maximum Measurement Sample Frequency a Y Type 50050 Flow, in Conduit or thru Treatment Plant GPD 215,456 Continuous Recorder WQ0002829 Version 2.1 Attachment A Page 2 of 2 ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS KDHWWTP, L.L.C. - KDHWWTP Permit Number: WQ0002829 Version: 2.1 INFILTRATIOMIRRIGATION AREA INFORMATION APPLICATION LIMITATIONS Basin 1 Field Owner County Latitude Longitude Net Acreage Dominant Soil Series Parameter Hourly Rate Yearly Max Units I -A KDHWWTP, L.L.C. Dare 36.0086770 -75.6699340 0.28 NIA 01284 -Non-Discharge Application Rate 10.0 GPDIft2 1-11 KDHWWTP, L.L.C. Dare 36.0084120 -75.6697710 0.28 NIA 01284 -Non-Discharge Application Rate 10.0 GPD/ft2 3 KDHWWTP, L.L.C. Dare 36.0073390 -75.6721650 0.06 NIA 01284-Non-Discharge Application Rate 10.0 GPD/ft2 4 KDHWWTP, L.L.C. Dare 36.0076850 -75.6726090 0.12 NIA 01284 -Non-Discharge Application Rate 10.0 GPDIft2 5 KDHWWTP, L.L.C. Dare 36.0072010 -75.6733780 0.06 NIA 01284 -Non-Discharge Application Rate 10.0 GPDIft2 6 KDHWWTP, L.L.C. Dare 36.0069380 -75.6740200 0.21 NIA 01284-Non-Discharge Application Rate 10.0 GPD/ft2 7-A KDHWWTP, L.L.C. Dare 36.0060910 -75.6748290 0.17 NIA 01284 -Non-Discharge Application Rate 10.0 GPD/ft2 7-11 KDHWWTP, L.L.C. Dare 36.0057470 -75.6746170 0.17 NIA 01284 -Non-Discharge Application Rate 10.0 GPD/ft2 Total Acreage for High -Rate Infiltration Areas 1.35 IRR-1 KDHWWTP, L.L_C. Dare 36.0080560 -75.6783330 4.6 Ousley 01284 - Non -Discharge Application Rate 1.0 t 18 inches IRR-2 KDHWWTP, L.L.C. Dare 36.0080560 -75.675833- 6.47 Corolla 01284-Non-Discharge Application Rate 1.0 118 inches IRR-3 KDHWWTP, L.L.C. Dare 36.0097220 -75.676389' 3.27 Corolla 01284 - Non -Discharge Application Rate 1.0 118 inches IRR-4 KDHWWTP; L.L.C. Dare 36.0077780 -75.6705560 5.62 Ousley 01284-Non-Discharge Application Rate 1.0 118 inches IRR-5 KDHWWTP, L.L.C. Dare 36.009731 ° -75,6717900 0.94 Newhan 01284 - Non -Discharge Application Rate 1.0 118 inches iRR-6 KDHWWTP, L.L.C. Dare 36.009444" -75.6694440 1.65 Ousley 01284 -Non-Discharge Application Rate 1.0 118 inches IRR-7 KDHWWTP, L.L.C. Dare 36.0086110 -75.6675000 2.00 Newhan 01284 -Non-Discharge Application Rate 1.0 118 inches Total Acreage for Reclaimed Irrigation Zones 24.55 Pond I KDHWWTP, L.L.C. Dare 36.004796- -75.676753° 2A NIA 01284-Non-Discharge Application Rate 1.49 GPD/ft2 Total Acreage for the 2 Interconnected Reclaimed Infiltration Ponds (Pond 1) 2.1 WQ0002829 Version 2.1 Attachment B Page i of 1 THIS PAGE BLANK ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Monitoring wells: CW-A, CW-C, CW-D, CW-F, CW-G, CW-E-1, CW-B-1 Permit Number: WQ0002829 Version: 2.1 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes 00680 Carbon, Tot Organic (TOC) mg/L 3 x Year Grab 1,6 00940 Chloride (as Cl) 250 mg/L 3 x Year Grab 1 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 3 x Year Grab 1 00610 Nitrogen, Ammonia Total (as N) 1.5 mg/L. 3 x Year Grab 1 00620 Nitrogen, Nitrate Total (as N) 10 mg/L 3 x Year Grab 1 00400 pH 6.5-8.5 su 3 x Year Grab 1,2 00665 Phosphorus, Total (as P) mg/L 3 x Year Grab I 70300 Solids, Total Dissolved - 180 °C 500 mg/L 3 x Year Grab 1 GWVOC Volatile Compounds (GC/MS) Present: Yes/No Annually Grab 1, 4, 5 82546 Water Level, Distance from measuring point feet 3 x Year Calculated 1, 2, 3 1. 3 x Year monitoring shall be conducted in .January, April & September; Annual monitoring shall be conducted every September. 2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of pH shall be made after purging and prior to sampling for the remaining parameters. 3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top of casing) of all monitoring wells shall be surveyed relative to a common datum. 4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the fallowing methods: a. Standard Method 6230D, PQL at 0.5 µg/L or less b. Standard Method 6210D, PQL at 0.5 µg/L or less c. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less e. Another method with prior approval by the Water Quality Permitting Section Chief Any method used must meet the following qualifications: a. A laboratory must be DWR certified to run any method used. b. The method used must, at a minimum, include all the constituents listed in Table VIII of Standard Method 6230D. c. The method used must provide a PQL of 0.5 µg/L or less that must be supported by laboratory proficiency studies as required by DWR. Any constituents detected above the MDL but below the PQL of 0.5 µg/L must be qualified (estimated) and reported. 5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Washington Regional Office supervisor, telephone number (252) 946-6481, must be contacted immediately for further instructions regarding any additional follow-up analyses required. 6. If TOC concentrations greater than 10 mg/L are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/L, this concentration will be taken to represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above. 7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure 1 and this attachment. 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