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HomeMy WebLinkAboutWQ0034367_Final Permit_20170711Water Resources ENVIRONMENTAL QUALITY July 11, 2017 EDWARD M. CARON — UTILITY AND PLANNING SUPERINTENDENT ONSLOW WATER AND SEWER AUTHORITY POST OFFICE BOX 1415 JACKSONVILLE, NORTH CAROLINA 28540-1415 Dear Mr. Caron: ROY COOPER Governor MICHAEL S. REGAN Secretary S. JAY ZIMMERMAN Director Subject: Permit No. W00034367 Northwest Regional WRF High -Rate Infiltration and Reclaimed Water Bulk Distribution System Onslow County In accordance with your permit renewal request received February 2, 2016, and subsequent additional information received May 31, 2016, September 30, 2016, December 21, 2016, and April 25, 2017, we are forwarding herewith Permit No. W00034367 dated July 11, 2017, to the Onslow Water and Sewer Authority for the continued operation of the subject wastewater treatment, high -rate infiltration, and reclaimed water bulk distribution facilities. This permit shall be effective from the date of issuance until June 30, 2022, shall void Permit No. WQ0034367 issued September 30, 2015, 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, C, and D 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 30, 2015: ➢ Old Condition I.1. — This condition has been removed because the hydrogeologic investigation report was received December 21, 2016. ➢ Old Condition I.3. — This condition has been removed because the engineering certification was received November 30, 2015. ➢ Old Condition 1.4. — This condition has been removed because an inspection was conducted March 15, 2016. ➢ Old Condition I.5. — This condition has been removed because monitoring wells MW-1, MW- 2, MW-3, and MW-4 have been installed. -'Nothing Compares'-,... State of North Carolina I Environmental Quality I Water Resources I Water Quality Permitting I Non -Discharge Permitting 1617 Mail Service Center I Raleigh, North Carolina 27699-1617 919-807-6332 Mr. Edward M. Caron July 11, 2017 Page 2 of 2 If any parts, requirements or limitations 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. If you need additional information concerning this permit, please contact Nathaniel Thornburg at (919) 807-6453 or nathaniel.thornburg_@ncdenr.gov. Sincerely, jjS. Jay Zimmerman, P.G., Director Division of Water Resources cc: Onslow County Health Department (Electronic Copy) Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy) Digital Permit Archive (Electronic Copy) Central Files 15. Noncompliance Notification: V The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910) 796-7215, 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. Effluent breakout from the infiltration basins. 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)] The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the wastewater treatment, infiltration, and bulk conjunctive reclaimed water utilization facilities. [15A NCAC 02T .0108(b)] 2. The Permittee ortheir designee shall inspect the wastewater treatment, infiltration, and bulk conjunctive reclaimed water 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)] 3. 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, infiltration, and bulk conjunctive reclaimed water 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)] 4. The Permittee shall inspect the utilization sites of all reclaimed water users who obtain more than 10,000 gallons per day of bulk distributed reclaimed water. Permittee inspection of these bulk distribution reclaimed water utilization sites does not need to exceed one inspection per quarter. The Permittee shall maintain records of these inspections for at least five years, and shall make them available to the Division upon request. [15A NCAC 02T .0108(b), 15A NCAC 02U .0601(f)] 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] W00034367 Version 2.0 Shell Version 151201 Page 12 of 13 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; and e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections and cleanings, etc.). [15A NCAC 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. For initial sampling of monitoring wells, the Permittee shall submit a Compliance Monitoring Form (GW-59) and a Well Construction Record Form (GW-1) listing this permit number and the appropriate monitoring well identification number. Initial Compliance Monitoring Forms (GW-59) without copies of the Well Construction Record Forms (GW-1) are deemed incomplete, and may be returned to the Permittee without being processed. [15A NCAC 02T .0105(m)] 14. 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)] W00034367 Version 2.0 Shell Version 151201 Page 11 of 13 6. 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 site listed in Attachment B: a. Date of infiltration; b. Volume of effluent infiltrated; c. Loading rates to each infiltration site listed in Attachment B; d. Weather conditions; and [15A NCAC 02T .0108(c)] 7. Freeboard (i.e., waste level to the lowest embankment elevation) in the high -rate infiltration basins and the five day upset basins 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)] 8. Three copies of all monitoring data (as specified in Conditions IV.3., IVA., and IV.5.) on Form NDMR for each PPI and three copies of all operation and disposal records (as specified in Conditions IV.6. and IV.7.) on Form NDAR-2 for every 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)] 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 and infiltration 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)] W00034367 Version 2.0 Shell Version 151201 Page 10 of 13 17. 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)] 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] Flow through the treatment facility and the bulk conjunctive reclaimed water distribution shall be continuously monitored, and daily flow values (for treatment facilities) 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. [15A NCAC 02T .0105(k)] 4. The Permittee shall maintain adequate records for the reclaimed water bulk distribution program. Records shall be maintained for a minimum of five years. These records shall include, but are not necessarily limited to, the following information: a. Date and time of bulk distribution event, b. Name of receiver or town -issued bulk fill certification number, c. Intended use of the bulk reclaimed water, d. Number of gallons provided at each bulk distribution event, and e. Total volume of bulk reclaimed water distributed each month. Monthly tracking records for bulk distribution shall be summed and reported Form NDMR (see Attachment A, PPI-005) under parameter WQO1 (Flow, Reclaimed Water Distributed). This value shall represent the total volume of reclaimed water distributed via bulk fill for that month. [ 15A NCAC 02T .0108(c)] 5. The Permittee shall monitor the effluent from the subject facilities, groundwater lowering system, and surface water monitoring stations, at the frequencies and locations for the parameters specified in Attachment A. [15A NCAC 02T .0108(c)] WQ0034367 Version 2.0 Shell Version 151201 Page 9 of 13 v. Tank trucks shall not have any type of removable container or portable bladder except if the tank/bladder is permanently labeled for reclaimed water use only and a letter from the truck owner is submitted to the Permittee indicating that in no case shall any removable container or portable bladder be used for both reclaimed and potable water at any time. [15A NCAC 02U .0501(a)(4), 02U .0601, 02U .0801] 6. 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)] 7. No automobiles or machinery shall be allowed on the infiltration sites except during equipment installation or while maintenance is being performed. [15A NCAC 02T .0108(b)(1)] 8. Public access to the infiltration sites and wastewater treatment facilities shall be prohibited. [15A NCAC 02T.0705(p)] 9. Public access to the reclaimed water bulk distribution 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] 10. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in accordance with 15A NCAC 02T A 100. The Permittee shall maintain a residual management plan pursuant to 15A NCAC 02T.0708 [15A NCAC 02T .0708, 02T .1100] 11. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is prohibited. [15ANCAC 02T.0705(i)] 12. Freeboard in the high -rate infiltration basins and the five day upset basins shall not be less than two feet at any time. [15A NCAC 02T .0705(c)] 13. Gauges to monitor waste levels in the high -rate infiltration basins and the five day upset basins 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)] 14. 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)] 15. All effluent shall be routed to the five day upset basins 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. The wastewater in the five day upset basins shall be pumped back to the treatment plant headworks for re -treatment or treated in the five day upset basins prior to infiltration and/or bulk conjunctive reclaimed utilization. [15A NCAC 02T .0108(b)(1)] 16. The infiltration basins 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 Wilmington Regional Office, telephone number (910) 796-7215, shall be notified prior to each cleaning. [15A NCAC 02T .0108(b)(1)] W00034367 Version 2.0 Shell Version 151201 Page 8 of 13 5. For reclaimed water bulk distribution operations the following requirements shall be met: a. The Permittee shall develop and implement an operation and maintenance plan, which includes but is not limited to the following: i. Description of operation; ii. Description of anticipated maintenance;. iii. Safety measures, including site restrictions; iv. Spill prevention and spill response plan; v. Contact information for plant personnel, emergency responders, and regulatory agencies; vi. Approval procedures of users; vii. Operational requirements for users; and viii.If reclaimed water is to be stored for greater than 72 hours prior to use, include a description of how compliance with reclaimed water quality standards will be ensured at the time of use. b. An education program shall be developed and implemented to inform reclaimed water bulk distribution users of the proper use of reclaimed water for each approved use (Attachment D). Educational material shall be provided to all individuals accepting the bulk reclaimed water. c. Educational material shall be maintained consistent with the approved reclaimed water uses listed in Attachment D. Educational material shall be made available to the Division upon request. d. The Permittee shall approve tank truck drivers for participation in the reclaimed water bulk distribution program prior to distribution of reclaimed water. In addition, the Permittee shall provide bilingual (English and Spanish) training to all tank truck drivers approved to participate in the bulk reclaimed water distribution program at a regular frequency. These sessions shall provide training on, but not limited to, the following topics: i. Reclaimed water description and safety; ii. Allowable and prohibited uses of reclaimed water; iii. Procedures for the application (including buffer maintenance), uses, and storage of reclaimed water as well as the disposal of unused reclaimed water; iv. Procedures for spill prevention, countermeasures, and control as well as notification requirements; v. Personal safety and hygiene issues; and vi. Interaction with the general public. e. Tank trucks used to transport reclaimed water shall meet the following requirements: i. Tank trucks and other equipment used to distribute reclaimed water shall be clearly identified with advisory signs. Signage could include but is not limited to "CAUTION: RECLAIMED WATER — DO NOT DRINK", "NON -POTABLE WATER", or a combination of similar phrases. ii. Tank trucks used to transport reclaimed water shall not be used to transport potable water that is used for drinking or other potable purposes. iii. Tank trucks used to transport reclaimed water shall not be filled through on -board piping or removable hoses that may subsequently be used to fill tanks with water from a potable water supply. Tank trucks owned and operated by the Permittee and dedicated to be filled by reclaimed water only may be filled through on -board piping. iv. Tank trucks shall not have been used to haul septage, biosolids, or other waste or chemical transport. W00034367 Version 2.0 Shell Version 151201 Page 7 of 13 b. The setbacks for storage and treatment units permitted under 15A NCAC 02T .0700 shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: 100 ii. Any private or public water supply source: 100 iii. Surface waters: 50 iv. Any well with exception of monitoring wells: 100 v. Any property line: 501 1 Per setback waivers recorded in the Onslow County Register of Deeds, setbacks from storage and treatment units to any property line have been reduced for the following: PIN Deed Book / Page Setback Easement 444103027242 4317 / 467-469 0 feet 50 feet 444103220913 4317 / 464-466 0 feet 50 feet [15A NCAC 02T .0706(d)] c. The setbacks for reclaimed water bulk distribution sites permitted under 15A NCAC 02T .0912(b) shall be as follows (all distances in feet): i. Non -SA surface waters: 25 I SA surface waters: 100 iii. Any well with exception to monitoring wells: 100 [15A NCAC 02T .0912(b)] 111. 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. Only effluent from the Northwest Regional WRF shall be infiltrated on the sites listed in Attachment B. [G.S. 143-215.1] 4. Only reclaimed water generated from the Northwest Regional WRF shall be utilized for the approved reclaimed water bulk distribution uses listed in Attachment D. [G.S. 143-215.11 W00034367 Version 2.0 Shell Version 151201 Page 6 of 13 14. The facilities permitted herein shall be constructed according to the following setbacks: a. The setbacks for high -rate infiltration sites permitted under 15A NCAC 02T .0700 shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: 1001 I Any habitable residence or place of public assembly owned by the Permittee: 50 iii. Any private or public water supply source: 100 iv. Surface waters: 1002 v. Groundwater lowering ditches: 1002 vi. Surface water diversions: 50 vii. Any well with exception of monitoring wells: 100 viii. Any property line: 50 1,3 ix. Top of slope of embankments or cuts of two feet or more in vertical height: 100 x. Any water line from a disposal system: 10 xi. Subsurface groundwater lowering drainage systems: 1001 xii. Any swimming pool: 100 xiii. Public right of way: 50 xiv. Nitrification field: 20 xv. Any building foundation or basement: 15 The Permittee has elected to comply with the high -rate infiltration system design policy dated October 27, 2006. Therefore, in accordance with meeting the Policy's criteria, the setback in Condition II.14.a.i. has been reduced from 400 feet to 100 feet, and the setbacks in Conditions II.14.a.ii. and II.14.a.viii. have been reduced from 200 feet to 50 feet. 2 Setbacks to surface waters, groundwater lowering ditches and subsurface groundwater lowering drainage systems have been reduced to 100 feet because the treatment units are designed to meet a Total Nitrogen of 7 mg/L and a Total Phosphorus of 3 mg/L in accordance with 15A NCAC 02T .0706(b). 3 Per setback waivers recorded with the Onslow County Register of Deeds, setbacks from the high -rate infiltration sites to property lines have been reduced for the following: PIN Deed Book / Page Setback Easement 444103027242 4317 / 467-469 0 feet 50 feet 444103220913 4317 / 464-466 0 feet 50 feet [15A NCAC 02T .0706(a), 02T .0706(b)] WQ0034367 Version 2.0 Shell Version 151201 Page 5 of 13 8. This disposal 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 .0106(d)(2), 02L .0107(b)] 9. In accordance with 15A NCAC 02L .0108, the review boundary 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] 10. The compliance and review boundaries for bulk conjunctive reclaimed water utilization activities have not been established. Any exceedance of standards shall require action in accordance with 15A NCAC 02L .0106. [15A NCAC 02L .0106, 02U.0501(a)(6)] 11. 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)] 12. 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). [15A NCAC 02L .0107] 13. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is not the Permittee and owns land within the compliance boundary shall execute and file with the Onslow 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)] W00034367 Version 2.0 Shell Version 151201 Page 4 of 13 H. 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 infiltration areas to adequately assimilate the effluent, or failure of the bulk conjunctive use distribution system, the Permittee shall take immediate corrective actions including Division required actions, such as the construction of additional or replacement wastewater treatment or infiltration 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), 02T .0705(b)] 5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in Attachment B. [ 15A NCAC 02T .0705(m)] 6. Reclaimed water distributed through bulk fill stations may only be utilized for the purposes listed in AttachmentD. [G.S.143-215.1] 7. The following shall be requirements for the reclaimed water distribution, storage, 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. All 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. [I5ANCAC 02U .04031 WO0034367 Version 2.0 Shell Version 151201 Page 3 of 13 I. continued operation of a non -potable reuse system for internal use within the treatment plant works deemed permitted under 15A NCAC 02T .1003(a)(4) consisting of. two 170 GPM submersible pumps; two 800 gallon steel hydropneumatic tanks; and all associated piping, valves, electrical systems, instrumental/control systems, and appurtenances; the continued operation of a reclaimed water bulk distribution system consisting of: a reclaimed water flow meter; a 400 GPM submersible reclaimed water distribution pump; a bulk reclaimed water truck loading station; and all associated piping, valves, electrical systems, instrumental/control systems, and appurtenances; the continued operation of a 1,272,973 GPD high -rate infiltration system consisting of. four effluent flow meters each serving an individual high -rate infiltration basin; high -rate infiltration basin A with an approximate infiltrative area of 2.365 acres and a loading rate of 8.736 gallons per day per square foot (GPD/ft ); high -rate infiltration basin B with an approximate infiltrative area of 1.725 acres and a loading rate of 3.286 GPD/fl2; high -rate infiltration basin C with an approximate infiltrative area of 1.725 acres and a loading rate of 0.720 GPD/ft2; high -rate infiltration basin D with an approximate infiltrative area of 1.174 acres and a loading rate of 1.407 GPD/ft2; and all associated piping, valves, electrical systems, instrumental/control systems, and appurtenances; and the continued operation of a 482,632 GPD groundwater lowering system consisting of: approximately 333,500 linear feet (LF) of continuous 6-inch slotted HDPE pipe enclosing all four high -rate infiltration basins and located 100 feet from the basins' high level water elevation; a groundwater lowering pump station with two 450 GPM submersible pumps and a flow meter; a groundwater detention pond with an overflow swale; and all associated piping, valves, electrical systems, instrumental/control systems, and appurtenances; to serve the Northwest Regional WRF, with no discharge of wastes to surface waters, pursuant to the application received February 2, 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 June 30, 2022, shall void Permit No. W00034367 issued September 30, 2015, and shall be subject to the following specified conditions and limitations: Prior to operation of the reclaimed water bulk distribution system, the Permittee shall submit documentation of a bulk reclaimed water education program in accordance with 15A NCAC 02U .0501(a)(3), .0501(b)(4) and .0601(d). The Permittee shall submit copies of the education program to the Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617. [15A NCAC 02T .0108(b)(2)] 2. 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)] W00034367 Version 2.0 Shell Version 151201 Page 2 of 13 106: r. ::I l.: ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENTAL QUALITY RALEIGH HIGH -RATE INFILTRATION AND RECLAIMED WATER BULK DISTRIBUTION SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules and Regulations PERMISSION IS HEREBY GRANTED TO Onslow Water and Sewer Authority Onslow County FOR THE operation of a 1,272,973 gallon per day (GPD) wastewater treatment, high -rate infiltration and reclaimed water bulk distribution system consisting of the: continued operation of a 2,000,000 gallon per day (GPD) wastewater treatment facility consisting of: a plant drain pump station with two 1,400 gallon per minute (GPM) submersible pumps; an influent flow meter; two fine screen/grit removal systems served by two 15.3 cubic foot per minute (CFM) positive displacement blowers; a by-pass manually cleaned coarse screen; a flow splitter box; an influent composite sampler; two 1,830,000 gallon sequencing batch reactors (SBRs) served by five 1,165 CFM positive displacement blowers, three 9,886 GPM axial flow jet motive pumps, an SBR influent transfer pump station with two 3,400 centrifugal pumps, and a waste activated sludge (WAS) pump station with three 516 GPM centrifugal pumps; two 614,000 gallon aerobic sludge digesters served by three 780 CFM positive displacement blowers, a WAS flow meter, two 4,395 GPM jet motive mixing pumps, two 350 GPM centrifugal sludge transfer pumps, two 250 GPM submersible supernatant pumps and a supernatant flow meter; an 822,000 gallon post flow equalization basin with two 4,943 GPM jet motive mixing pumps and three 1,400 GPM centrifugal transfer pumps; a post flow equalization basin flow meter; two tertiary disc filter units; a 5,000 gallon membrane filter feed tank with two 1,750 GPM centrifugal feed pumps; a membrane skid served by two blowers designed for backwashing the membranes and a 1, 800 clean -in -place (CIP) heated water tank with a 720 GPM recirculation pump, citric acid, sulfuric acid and sodium hypochlorite feeds; a 6,000 gallon neutralization tank for the CIP waste with acid and sodium hydroxide feeds; an ultraviolet (UV) disinfection system with two parallel banks each with six lamps; a 75,000 gallon chlorine contact basin served by a 2,500 gallon sodium hypochlorite tank with two 30 gallon per hour (GPH) peristaltic chemical metering pumps; an 11,500 gallon effluent pump station with three 1,850 GPM submersible pumps; an effluent nitrate analyzer; an effluent residual chlorine analyzer; an effluent sampler with a hose pump; a turbidimeter; a 1,500 kilowatt (kW) automatically activated auxiliary generator; an alum feed system with a 7,000 gallon tank and three 30 GPH peristaltic chemical metering pumps; a sodium hydroxide feed system with a 10,000 gallon tank and three 40 GPH peristaltic chemical metering pumps; a micro-C glycerin feed system with a 10,000 gallon tank and two 40 GPH peristaltic chemical metering pumps; two synthetically lined 5-day upset basins served by the aforementioned plant drain pump station with both basins having an effective volume of 2,734,829 gallons; and all associated piping, valves, electrical systems, instrumental/control systems, and appurtenances; the W00034367 Version 2.0 Shell Version 151201 Page 1 of 13 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] 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)] 7. 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 .01050)] 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 1 I' day of July 2017 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION S. Jay Zimmerman, P.G., Director Division of Water Resources By Authority of the Environmental Management Commission Permit Number WO0034367 WQ0034367 Version 2.0 Shell Version 151201 Page 13 of 13 THIS PAGE BLANK ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS PPI 001— WRF Effluent Permit Number: W00034367 Version: 2.0 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 00310 BOD, 5-Day (20 °C) mg/L t0 15 3 x Week Composite 00940 Chloride (as Cl) mg/L 3 x Year I Composite 50060 Chlorine, Total Residual mg/L 5 x Week Grab 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 14 25 3 x Week Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 1,272,973 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 6 3 x Week Composite 00625 Nitrogen, Kjeldahl, Total (as N) mg/L 3 x Week Composite 00620 Nitrogen, Nitrate Total (as N) mg/L 10 3 x Week Composite 00600 Nitrogen, Total (as N) mg/L 7 3 x Week Composite 00400 pH so 6 9 5 x Week Grab 00665 Phosphorus, Total (as P) mg/L 3 3 x Week Composite 70300 Solids, Total Dissolved —180 °C mg/L 3 x Year I Composite 00530 Solids, Total Suspended mg/L 5 10 3 x Week Composite 00076 Turbidity, HCH Turbidimeter NTU 10 Continuous Recorder 1. 3 x Year sampling shall be conducted in March, July and November. W00034367 Version 2.0 Attachment A Page 1 of 3 ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS PPI 002 — Groundwater Lowering System Effluent Permit Number: WQ0034367 Version: 2.0 EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCs Code Parameter Descri tion p Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 00310 BOD, 5-Day (20 °C) mg/L .,- 2 x Month Grab 00680 Carbon, Total Organic (TOC) mg/L 3 x Year Grab 00940 Chloride (as Cl) mg/L 250 3 x Year Grab 31616 Colifotm, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 2 x Month Grab 00300 DO, Oxygen, Dissolved mg/L 2 x Month Grab 50050 Flow, in Conduit or thm Treatment Plant GPD 482,632 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 1.5 2 x Month Grab 00625 Nitrogen, Kjeldahl, Total (as N) mg/L 2 x Month Grab 00620 Nitrogen, Nitrate Total (as N) mg/L 10 2 x Month Grab 00600 Nitrogen, Total (as N) mg/L 2 x Month Grab 00400 pH su 6.5 8.5 2 x Month Grab 00665 Phosphorus, Total (as P) mg/L 2 x Month Grab 70300 Solids, Total Dissolved —180 °C mg/L 500 3 x Year' Grab 1. 3 x Year sampling shall be conducted in Much, July and November. W00034367 Version 2.0 Attachment A Page 2 of 3 ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS PPI 003 — Surface Water Monitoring Station #11 Permit Number: W00034367 Version: 2.0 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 00310 BOD, 5-Day (20 °C) mg/L 2 x Month Grab 00300 DO, Oxygen, Dissolved mg/L 2 x Month Grab 00600 Nitrogen, Total (as N) mg/L 2 x Month Grab 00400 pH so 2 x Month Grab 00665 Phosphorus, Total (as P) mg/L 2 x Month Grab PPI 004 — Surface Water Monitoring Station #2r EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code parameter Description p Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 00310 BOD, 5-Day (20 °C) mg/L 2 x Month Grab 00300 DO, Oxygen, Dissolved mg/L 2 x Month Grab 00600 Nitrogen, Total (as N) mg/L 2 x Month Grab 00400 pH an 2 x Month Grab 00665 Phosphorus, Total (as P) mg1L 2 x Month Grab Surface Water Monitoring shall be reported consistent with location information provided in Figure 2 and this attachment. PPI 005 — Bulk Conjunctive Reclaimed Water Distribution EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Parameter Description Units of Monthly Total Monthly Daily Minimum Daily Maximum Measurement Sample Code Measure Geometric Mean Frequency Type WQ01 Flow, Reclaimed Water Distributed gallon Monthly Calculated W00034367 Version 2.0 Attachment A Page 3 of 3 ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS Onslow Water and Sewer Authority — Northwest Regional WRF Permit Number: W00034367 Version:2.0 INFILTRATION AREA INFORMATION APPLICATION LIMITATIONS Basin Owner County Latitude Longitude Net Dominant parameter Rate Units Acreage Soil Series A Onslow Water and Sewer Authority Onslow 34.8752780 -77.5294440 2.37 AuB 01284 —Non-Dischazge Application Rate 8.736 GPD/ft2 900,000 GPD B Onslow Water and Sewer Authority Onslow 34.8754170 -77.5277780 1.73 NoB 01284 — Non -Discharge Application Rate 3.286 GPD/ft2 246,891 GPD 0.720 GPD/ft2 C Onslow Water and Sewer Authority Onslow 34.8758330 -77.5258330 1.73 NoB 01284 —Non-Discharge Application Rate 54,094 GPD D Onslow Water and Sewer Authority Onslow 34.8745830 -77.5255560 1.17 NoB 01284 —Non-DischazApplication Rate 1.408 G 71,988 GPD GPD Totals 6.989 W00034367 Version 2.0 Attachment B Page 1 of 1 y x b G� b� r z x ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Permit Number: W00034367 Version: 2.0 Monitoring wells: MW-1, MW-2, MW-3, and MW4 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 not, 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 L 2 00665 Phosphorus, Total (as P) mg/L 3 x Year Grab 1 70300 Solids, Total Dissolved - 180 °C 500 mg/L 3 x Year Grab 1 GW VOC Volatile Compounds (GC/MS) Present: Yes/No Annually Grab L4,5 82546 Water Level, Distance from measuring point feet 3 x Year Calculated L2,3 1. 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November. 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 following 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/I, 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. S. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Wilmington Regional Office supervisor, telephone number (910) 796-7215, 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. W00034367 Version 2.0 Attachment C Page 1 of 1 ATTACHMENT D — APPROVED BULK FILL RECLAIMED WATER USES Onslow Water and Sewer Authority — Northwest Regional WRF Permit Number: WQ0034367 Version: 2.0 APPROVED USES ADDITIONAL REQUIREMENTS AND COMMENTS For use by Permittee or Per mittee affiliations (i.e. municipal employees, or contracted service providers).' Firefighting and fire extinguishing Must meet Public Water Supply requirements Reclaimed water distribution line flushing and pressure testing Provided the water is returned to the sanitary sewer, or used for other approved reclaimed water uses after testing. Vehicle and equipment washing Provided that no pending or run-off of the reclaimed water occurs. For use by certified bulk reclaimed water users. e Concrete cutting Decorative ponds and fountains that drain to sanitary sewer systems Hydro -seeding and fertilizer mixing Industrial and commercial cooling water or boiler blow down water Provided that cooling water or boiler blow down water is disposed of according to any necessary disposal permit. Industrial and commercial fire prevention systems where there are separate non -potable plumbing lines Irrigation of public and private landscapes and turf Make-up water for brine slurry or similar Brine slurry to be applied to roads to prevent freezing. Irrigation of food chain crops Provided that all conditions of 15A NCAC 02U .1401 are met. Make-up water for preparation of pesticide solutions or similar Use of reclaimed water does not exempt user from meeting the use and disposal requirements of the created solution. Non -potable processes such as asphalt reclamation, concrete production and compost production Must meet compost permit requirements. Sewer cleaning Soil compaction and dust suppression May include irrigation to clay or synthetic cla tennis courts, or similar. Street sweeping and washing Subsurface Directional Boring Does not include borings into bedrock or installation of any wells subject to 15A NCAC 02C - Well Construction Regulations. Vehicle washing and power washing Provided that dual disinfection with UV and chlorination is provided, and that no pending or run-off of the reclaimed water occurs. All users shall complete educational training and receive certification prior to receiving bulk reclaimed water. 8. 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