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HomeMy WebLinkAboutWQ0015053_Final Permit_20231004ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director NORTH CAROLINA Environmental Quality October 4, 2023 DONALD I. MCREE, JR. — COUNTY MANAGER CURRITUCK COUNTY 153 COURTHOUSE ROAD — SUITE 204 CURRITUCK, NORTH CAROLINA 27929 Subject: Permit No. WQ0015053 Moyock Commons WWTP High -Rate Infiltration System Currituck County Dear Mr. McRee, In response to your permit renewal request received on December 5, 2022, and subsequent additional information received on March 8, 2023, and July 17, 2023, we are forwarding herewith Permit No. WQ0015053 dated October 4, 2023, to Currituck County for the continued operation of the subject wastewater treatment and high -rate infiltration facilities. This permit is effective from the date of issuance through November 30, 2030, shall replace Permit No. WQ0015053 issued on December 18, 2017, and is subject to the conditions and limitations therein. The Permittee shall submit a renewal application no later than June 3, 2030. Please pay 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 may result in future non-compliance. The Division has removed the following permit conditions since the last permit issuance dated December 18, 2017: ➢ Old Conditions L1, 1.2, L3, and L4 — The Division has removed these conditions because the Permittee has met these Compliance Schedules. ➢ Old Condition IL3 — The Division has removed this condition. ➢ Old Condition VL2 — The Division has removed this condition because permits are not voidable. ➢ Old Conditions VIA and VL5 — The Division has removed these conditions because the flow reduction approval is no longer applicable to this facility. The following permit conditions are new or modified since the last permit issuance dated December 18, 2017: ➢ Condition IIL4 — This condition requires the Permittee to calibrate infiltration equipment once per permit cycle. ME ��� North Carolina Department of Environmental Quality i Division of Water Resources 512 North Salisbury Street 11617 Mail Service Center I Raleigh, North Carolina 27699-1617 NORTH CAROLINA ©eca.. or 919,707,9000 Mr. Donald L McRee, Jr. October 4, 2023 Page 2 of 2 ➢ Condition IIL13 — This condition requires the Permittee to calibrate metering equipment annually. ➢ Condition IIL 14 —This condition requires the Permittee to maintain an automatically activated standby power source onsite. ➢ Condition IV.5.d —This condition requires the Permittee to record the length of site infiltration time. ➢ Conditions IV.5.e and IV.5.f— The Division has modified Old Condition IV.5.d to specify what details the Permittee shall record in relation to loading rates. ➢ Condition IV.7 — The Permittee shall submit electronic monitoring data monthly. ➢ Conditions IV.9.b and IV.9.e — These conditions require the Permittee to keep a maintenance log that includes the date of infiltration equipment calibration and the date and results of the alternate power supply testing. ➢ Condition IV.10 — The Permittee shall submit electronic monitoring well sampling and analysis results. ➢ Condition VL9 — This condition describes the conditions where facility expansion shall not occur. This permit can be contested as provided in Chapter 150B of the North Carolina General Statutes by filing a Petition for a Contested Case Hearing (Petition) with the North Carolina Office of Administrative Hearings (OAH) within 30 calendar days. Requirements for filing a Petition are set forth in Chapter 150B of the North Carolina General Statutes and Title 26 of the North Carolina Administrative Code. Those interested in filing may access additional information regarding the requirements for filing a Petition and Petition forms at the OAH website or by calling the OAH Clerk's Office at (919) 431-3000. A party filing a Petition shall serve a copy of the Petition on the Department of Environmental Quality's Office of General Counsel at 1601 Mail Service Center, Raleigh, NC 27699-1601. If the party filing the Petition is not the Permittee, then the party shall also serve the Permittee pursuant to G.S. 15013-23(a). If you need additional information concerning this permit, please contact Cord Anthony at (919) 707-3655 or cord.anthony&deq.nc.gov. Sincerely, DDocuSigned by: 1.-.6. vvbwoN83 Richard E. Rogers, Jr., Director Division of Water Resources cc: Currituck County Health Department (Electronic Copy) Washington Regional Office, Water Quality Regional Operations Section (Electronic Copy) Laserfiche File (Electronic Copy) Digital Permit Archive (Electronic Copy) NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENTAL QUALITY RALEIGH HIGH -RATE INFILTRATION SYSTEM PERMIT Pursuant to 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 Currituck County Currituck County FOR THE operation of a 40,000 gallon per day (GPD) wastewater collection, treatment, and high -rate infiltration facility consisting of the: continued operation of a wastewater collection system consisting o£ approximately 2,625 linear feet (LF) of 8-inch gravity sewer; an 80 gallon per minute (GPM) pump station with dual pumps and high-water alarms; approximately 815 LF of 4-inch force main; and all associated piping, valves, controls, and appurtenances; the continued operation of a wastewater treatment system consisting of. a continuous monitoring flow recorder; a 10,000 gallon equalization basin with 28 GPM pumps; a manually cleaned bar screen; a flow splitter box; two 20,029 gallon coarse bubble aeration basins; two 8,390 gallon clarifiers; a 3,938 gallon aerated sludge holding tank; two 206 cubic feet per minute (CFM) blowers; dual bed tertiary filters with each filter measuring 14 square feet (ft2); a tablet chlorinator with a 1,111 gallon chlorine contact chamber; a 2,500 gallon effluent dosing tank with two 90 GPM pumps and high-water alarms; a stand-by generator with automatic transfer switch to serve the collection system pump station and the wastewater treatment system; and all associated piping, valves, controls, and appurtenances; and the continued operation of a high -rate infiltration system consisting of two 0.63 acre high -rate infiltration basins; and all associated piping, valves, controls, and appurtenances to serve the Moyock Commons WWTP, with no discharge of wastes to surface waters, pursuant to the application received on December 5, 2022, subsequent additional information received on March 8, 2023, and July 17, 2023, and in conformity with the Division -approved plans and specifications considered a part of this permit. This permit is effective from the date of issuance through November 30, 2030, shall replace Permit No. WQ0015053 issued on December 18, 2017, and is subject to the following conditions and limitations: WQ0015053 Version 5.0 Shell Version 230725 Page 1 of 10 I. SCHEDULES 1. If the permitted facilities change ownership or the Permittee changes its name, the Permittee shall submit a permit modification request on Division -approved forms within 90 days of the change of ownership. The Permittee shall comply with all terms and conditions of this permit until the Division transfers the permit to the successor -owner. [G.S. 143-215.1(d3)1 2. The Permittee shall request renewal of this permit on Division -approved forms no later than June 3, 2030. [15A NCAC 02T .0105(b), 02T .0109] II. PERFORMANCE STANDARDS The Permittee shall operate and maintain the subject wastewater treatment and high -rate infiltration facilities so there is no discharge to surface waters, nor any contravention of groundwater or surface water standards. In the event the facilities do not perform as designed, including the creation of nuisance conditions due to improper operation and maintenance, or failure of the infiltration areas to assimilate the effluent, the Permittee shall take immediate corrective actions, including Division - required actions, such as the construction of additional or replacement wastewater treatment or disposal facilities. [15A NCAC 02T .0108(b)(1)(A)1 2. This permit shall not relieve the Permittee of its responsibility for contravention of groundwater or surface water standards resulting from the operation of this facility. [15A NCAC 02T .0108(b)(1)(A)] 3. The Permittee shall operate and maintain the permitted wastewater collection facilities pursuant to the following criteria: a. The Permittee shall operate and maintain the collection system to prevent discharge to land or surface waters and to prevent contravention of groundwater or surface water standards. b. The Permittee shall develop and maintain a map of the collection system. c. The Permittee shall develop, implement, and maintain an operation and maintenance plan. d. The Permittee shall inspect pump stations not connected to a telemetry system every day unless the Division approves otherwise. The Permittee shall inspect pump stations connected to a telemetry system once per week. e. The Permittee shall inspect high -priority sewers once every six months. f. The Permittee shall conduct a general observation of the entire collection system once per year. g. The Permittee shall report overflows and bypasses to the Washington Regional Office pursuant to 15A NCAC 02B .0506(a) and the Permittee shall provide public notice as required by G.S. 143- 215.1C. h. The Permittee shall develop, implement, and maintain a grease control program. i. The Permittee shall maintain rights -of -way and easements. j. The Permittee shall maintain documentation of compliance with the above requirements for three years, except for the map, which the Permittee shall maintain for the life of the system. [ 15A NCAC 02T .0403(a)] 4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T .0108(b)(1)(A)1 5. The Permittee shall not infiltrate effluent in exceedance of the hydraulic specified in Attachment B. [15A NCAC 02T .0 1 08(b)(1)(A)] WQ0015053 Version 5.0 Shell Version 230725 Page 2 of 10 6. For high -rate infiltration sites originally permitted on or after December 30, 1983, the Division has established the compliance boundary 250 feet from the infiltration area boundary or 50 feet within the property boundary, whichever is closest to the infiltration area boundary. Any exceedance of groundwater standards at or beyond the compliance boundary shall require the Permittee to take corrective action. The Division shall note any Division -approved relocation of the compliance boundary in Attachment B. The Division shall consider multiple contiguous properties under common ownership and permitted for use as a disposal system as a single property regarding the determination of a compliance boundary. [15A NCAC 02L .0106(e), 02L .0107(b), 02L .0107(c), 02L .0107(fl, 02T .0105 h 7. The Division has established the review boundary midway between the compliance boundary and the infiltration area boundary. Any exceedance of groundwater standards at or beyond the review boundary shall require the Permittee to take preventative action. [ 15A NCAC 02L .0106(d), 02L .01081 8. The Permittee shall notify the Division of any sale or transfer of property affecting a compliance boundary (i.e., parcel subdivision). [15A NCAC 02L .0107(1)] 9. The Permittee or any landowner who owns land within the compliance boundary shall not construct any water supply wells within the compliance boundary. [ 15A NCAC 02L .0107(i)] 10. The Permittee shall ensure that any landowner who owns land within the compliance boundary and who is not the Permittee executes and files with the Currituck County Register of Deeds an easement running with the land. This easement shall contain either a notice of this permit, including the permit number, a description of the type of permit, and the name, address, and telephone number of the permitting agency; or a reference to a notice of this permit with book and page number of its recordation. The landowner may request that the Director file a document terminating the easement with the Currituck County Register of Deeds upon completion of the following: a. The Permittee has completed all required groundwater remediation. b. The Division determines that groundwater monitoring is no longer required pursuant to 15A NCAC 02L .0110(fl. c. The Permittee has abandoned monitoring wells pursuant to 15A NCAC 02C .0113. JG Body Shop, LLC has executed and recorded a 12 foot easement in the Currituck County Register of Deeds (Deed Book 1740 / Page No. 622 — 624) for the compliance boundary that extends onto Parcel No. 015B00000080000. [ 15A NCAC 02L .0107(k)] WQ0015053 Version 5.0 Shell Version 230725 Page 3 of 10 11. The Permittee shall operate and maintain the permitted facilities pursuant to the following setbacks: a. The Division originally permitted the infiltration sites as low -rate infiltration on June 18, 1998, with an application received on March 4, 1998. The setbacks for high -rate infiltration sites originally permitted or modified as low -rate infiltration sites with an application received from February 1, 1993, through August 31, 2006, are as follows (all distances in feet): i. Each private or public water supply source: 100 ii. Surface waters: 100 iii. Groundwater lowering ditches: 25 1 iv. Surface water diversions (upslope): 10 v. Surface water diversions (downslope): 25 vi. Each well with exception of monitoring wells: 100 vii. Each property line: 50 2,3 viii. Top of slope of embankments or cuts of two feet or more in vertical height: 15 ix. Each water line: 10 x. Each swimming pool: 100 xi. Public right of way: 50 xii. Nitrification field: 20 xiii. Each building foundation or basement: 15 ' The Division considers the existing stormwater basin to the north of Basin 1 a surface water diversion. 2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the Permittee is leasing, owns both parcels separated by the property line. 3 Pursuant to a setback waiver recorded in the Currituck County Register of Deeds, reduced setbacks from the infiltration area boundary to any property line are as follows: Parcel No. Deed Book / Page Setback Easement 015B00000080000 1419 / 238 38 feet 12 feet [15A NCAC 02H .0219(i)(5)] WQ0015053 Version 5.0 Shell Version 230725 Page 4 of 10 b. The Division originally permitted the treatment and storage units on June 18, 1998, with an application received on March 4, 1998. The setbacks for treatment and storage units originally permitted or modified with an application received from February 1, 1993, through August 31, 2006, are as follows (all distances in feet): I. Each habitable residence or place of assembly under separate ownership: 100, ii. Each private or public water supply source: 100 iii. Surface waters: 50 iv. Each well with exception of monitoring wells: 100 v. Each property line: 50 2,3 vi. Nitrification field: 20 Habitable residences or places of assembly under separate ownership constructed after the Division originally permitted or subsequently modified the facilities are exempt from this setback. 2 Setbacks to property lines are not applicable when the Permittee, or the entity from which the Permittee is leasing, owns both parcels separated by the property line. 3 Pursuant to a setback waiver recorded in the Currituck County Register of Deeds, reduced setbacks from the treatment and storage units to any property line are as follows: Parcel No. Deed Book / Page Setback Easement 015B00000080000 1419 / 238 38 feet 12 feet [15A NCAC 02H .0219(i)(5)] OPERATION AND MAINTENANCE The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC 02T .0101] 2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include: a. A description of the operation of the system in sufficient detail to show what operations are necessary for the system to function and who shall conduct the operations. b. A description of the anticipated maintenance of the system. c. Provisions for safety measures, including restriction of access to the site and equipment. d. Spill control provisions that include response to upsets and bypasses, including control, containment, and remediation; and contact information for personnel, emergency responders, and regulatory agencies. [I 5A NCAC 02T .0707(a)1 3. Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC) classification of the subject non -discharge facilities, the Permittee shall designate and employ a certified Operator in Responsible Charge (ORC), and one or more certified operators as Back-up ORCs. The ORC or its Back-up shall operate and visit the facilities as required pursuant to 15A NCAC 08G .0204 and 08G .0205. [ 15A NCAC 02T .0117] 4. The Permittee shall test and calibrate the infiltration equipment once per permit cycle. [15A NCAC 02T .0707(d)1 5. The Permittee shall only infiltrate treated effluent from the Moyock Commons WWTP onto the sites listed in Attachment B. [15A NCAC 02T .0701] WQ0015053 Version 5.0 Shell Version 230725 Page 5 of 10 6. The Permittee shall not allow vehicles or heavy machinery on the infiltration area, except during equipment installation or maintenance activities. The Permittee shall take caution to protect the integrity of the infiltrative area. [ 15A NCAC 02T .0707(e)] 7. The Permittee shall prohibit public access to the wastewater treatment, storage, and infiltration facilities. [15A NCAC 02T .0705(p) 8. The Permittee shall dispose of or utilize generated residuals in a Division -approved manner. [15A NCAC 02T .0708, 02T .1101]. 9. The Permittee shall not divert or bypass untreated or partially treated wastewater from the subject facilities. [15A NCAC 02T .0705(i)] 10. The Permittee shall maintain a freeboard of not less than two feet in the two 0.63 acre high -rate infiltration basins. [15A NCAC 02T .0705(c)] 11. The Permittee shall provide gauges to monitor freeboard levels in the two 0.63 acre high -rate infiltration basins. These gauges shall have readily visible permanent markings, at inch or tenth of foot increments, indicating the following elevations: the maximum liquid level at the top of the temporary liquid storage volume, the minimum liquid level at the bottom of the temporary liquid storage volume, and the lowest point on top of the dam. [ 15A NCAC 02T .0707(fl] 12. The Permittee shall establish and maintain a protective vegetative cover on all berms, pipe runs, erosion control areas, surface water diversions, and earthen embankments (i.e., the outside toe of the embankment to the maximum allowable temporary storage elevation on the inside of the embankment). The Permittee shall remove all trees, shrubs, and other woody vegetation from earthen dikes and embankments. The Permittee shall keep all earthen embankments mowed or otherwise controlled and accessible. [ 15A NCAC 02T .0707(g)1 13. The Permittee shall test and calibrate metering equipment annually. [15A NCAC 02T .0707(d)] 14. The Permittee shall provide and maintain onsite an automatically activated standby power source capable of powering all essential treatment units. If the Permittee employs a generator as an alternate power supply, the Permittee shall test it weekly. [15A NCAC 02T .0705(k)] 15. The Permittee shall clean the infiltration areas once per permit cycle to remove deposited materials that may impede the infiltration process. The Permittee shall maintain cleaning records at the facility for eight years and shall make them available to the Division upon request. Prior to each cleaning, the Permittee shall notify the Washington Regional Office, telephone number (252) 946-6481. [15A NCAC 02T .0707(h)] IV. MONITORING AND REPORTING 1. The Permittee shall conduct and report any Division -required monitoring, including the monitoring of groundwater, surface water or wetlands, waste, wastewater, residuals, soil, treatment processes, lagoon or storage ponds, and plant tissue, if necessary to evaluate this facility's impact on groundwater and surface water. [ 15A NCAC 02T .0108(c)1 2. A Division -certified laboratory shall conduct all analyses for the required parameters specified in Attachments A and C. Parameters measured on -site with in -line metering equipment are exempt from a Division -certified laboratory analysis. [15A NCAC 02H .0805] 3. The Permittee shall continuously monitor flow through the treatment facility and report daily flow values on Form NDMR. Facilities with a permitted flow of less than 10,000 GPD may estimate its flow from water usage records provided the water source has a metering device. [15A NCAC 02T .0105 k , 02T .0108(c)1 WQ0015053 Version 5.0 Shell Version 230725 Page 6 of 10 4. The Permittee shall monitor the treated effluent at the frequencies and locations for the parameters specified in Attachment A. [15A NCAC 02T .0105(k), 02T .0108(c)] 5. The Permittee shall maintain records tracking the amount of effluent infiltrated, which shall include the following information for each infiltration site listed in Attachment B: a. Date of infiltration. b. Volume of effluent infiltrated. c. Site infiltrated. d. Length of site infiltration time. e. Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings. f Continuous monthly and year-to-date loadings for any non -hydraulic parameter specifically limited in Attachment B. g. Weather conditions. [ 15A NCAC 02T .0108(c 6. The Permittee shall measure and record weekly to the nearest inch or tenth of a foot of freeboard (i.e., the waste level to the lowest embankment elevation) in the two 0.63 acre high -rate infiltration basins. The Permittee shall maintain the weekly freeboard records for eight years and shall make them available to the Division upon request. [ 15A NCAC 02T .0108(c)] 7. On or before the last day of the month following the previous month's sampling, the Permittee shall submit monitoring data (as specified in Conditions IV.3 and IVA) on Form NDMR for each PPI and operation and disposal records (as specified in Conditions IV.5 and IV.6) on Form NDAR-2 for every site in Attachment B. If no activities occurred during the monitoring month, the Permittee shall still submit monitoring reports documenting the absence of the activity. The Permittee shall submit the reports via the Non -Discharge monitoring report portal. [15A NCAC 02T .0105(1)] 8. The Permittee shall maintain records of all residuals removed from this facility. The Permittee shall maintain these records for eight years and shall make them available to the Division upon request. These records 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. Residuals hauling date. d. Volume of residuals removed. [ 15A NCAC 02T .0708(b)] 9. The Permittee shall keep a log of all maintenance done at this facility. The Permittee shall maintain this log for eight years and shall make it available to the Division upon request. This log shall include: a. Date of flow measurement device calibration. b. Date of infiltration equipment calibration. c. Visual observations of the plant and plant site. d. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections, cleanings, etc.). e. Date and results of the alternate power supply testing. [ 15A NCAC 02T .0707(i)] 10. The Permittee shall sample monitoring wells MW-1 and MW-3 at the frequencies and for the parameters specified in Attachment C. [ 15A NCAC 02T .0105(m)1 11. On or before the last day of the month following the previous month's sampling, the Permittee shall submit a Compliance Monitoring Form (GW-59) and its associated laboratory analyses for each monitoring well in Attachment C. The Permittee shall submit the Compliance Monitoring Forms via the Non -Discharge monitoring report portal. [15A NCAC 02T .0105(m)] WQ0015053 Version 5.0 Shell Version 230725 Page 7 of 10 12. Noncompliance Notification: The Permittee shall report to the Washington Regional Office, telephone number (252) 946-6481, within 24 hours of first knowledge 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, structural, etc.) that makes the facility incapable of adequate wastewater treatment. c. Any facility failure resulting in a discharge to 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 sites. Emergencies requiring reporting outside normal business hours shall call the Division's Emergency Response personnel at the telephone number (800) 858-0368. All noncompliance notifications shall file a written report to the Washington Regional Office within five days of first knowledge of the occurrence, and this report shall outline the actions proposed or taken to ensure the problem does not recur. [15A NCAC 02T .0108(b)(1)(A)1 V. INSPECTIONS 1. The Permittee shall perform inspections and maintenance to ensure proper operation of the wastewater treatment and infiltration facilities. 115A NCAC 02T .0707(i)1 2. The Permittee shall inspect the wastewater treatment and infiltration facilities to prevent malfunctions, facility deterioration, and operator errors that may result in discharges of wastes to the environment, threats to human health, or public nuisances. The Permittee shall maintain an inspection log that includes the date and time of inspection, observations made, and maintenance, repairs, or corrective actions taken. The Permittee shall maintain this inspection log for eight years from the date of the inspection and shall make this log available to the Division upon request. [15A NCAC 02T .0707(i), 02T .0707(j)1 Division -authorized representatives may, upon presentation of credentials, enter and inspect any property, premises, or place related to the permitted wastewater treatment and infiltration facilities at any reasonable time for determining compliance with this permit. Division -authorized representatives may inspect or copy records maintained under the terms and conditions of this permit and may collect influent, treatment process water, effluent, residual, soil, plant tissue, groundwater, or surface water samples. [G.S. 143-215.3(a)(2)1 WQ0015053 Version 5.0 Shell Version 230725 Page 8 of 10 Vl. GENERAL 1. The Permittee's failure to comply with this permit's conditions and limitations may subject the Permittee to a Division enforcement action. [G.S. 143-215.6A, 143-215.6B, 143-215.6C] 2. This permit is effective only for the nature and volume of wastes described in the permit application and Division -approved plans and specifications. [G.S. 143-215.1(d)1 3. There are no variances to administrative codes or general statutes governing the construction or operation of the permitted facilities unless the Permittee specifically requested a variance in the application and the Division approved the variance as noted in this permit's facility description. [15A NCAC 02T .0105(b)] 4. This permit does not exempt the Permittee from complying with all statutes, rules, regulations, or ordinances that other jurisdictional government agencies (e.g., local, state, and federal) may require. [15A NCAC 02T .0 1 08(b)(1)(A)] 5. The Permittee shall retain this permit and the Division -approved plans and specifications for the life of the permitted facilities. [15A NCAC 02T .0105(o), 02T .0116(d)] 6. The Permittee shall comply with all permit conditions and requirements until the proper closure of the permitted facilities, or until another appropriate authority permits the facilities. [15A NCAC 02T .0105 ] 7. This permit is subject to revocation or modification upon 60-day notice from the Division Director in whole or part for: a. Violation of any terms or conditions of this permit or 15A NCAC 02T. b. Obtaining a permit by misrepresentation or failure to disclose all relevant facts. c. The Permittee's refusal to allow authorized Department employees upon presentation of credentials: I. To enter the Permittee's premises where a system is located or where the Permittee keeps any Division -required records under the terms and conditions of this permit. ii. To have access to any permit -required documents and records. iii. To inspect any monitoring equipment or method as required in this permit. iv. To sample any pollutants. d. The Permittee's failure to pay the annual fee for administering and compliance monitoring. e. A Division determination that the conditions of this permit conflict with the North Carolina Administrative Code or General Statutes. [ 15A NCAC 02T .01101 WQ0015053 Version 5.0 Shell Version 230725 Page 9 of 10 8. Unless the Division determines that the Permittee needs a permit modification for the construction of facilities to resolve non-compliance with any environmental statute or rule, or the Division Director grants a variance, expansion of the permitted facilities shall not occur if any of the following apply: a. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has been convicted of environmental crimes under G.S. 143-215.6B or under Federal law that would otherwise be prosecuted under G.S. 143-215.6B, and the Permittee or any parent, subsidiary, or other affiliate of the Permittee has abandoned or exhausted all appeals of this conviction. b. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has previously abandoned a wastewater treatment facility without properly closing the facility in accordance with its permit or 15A NCAC 02T. c. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid a civil penalty, and the Permittee or any parent, subsidiary, or other affiliate of the Permittee has abandoned or exhausted all appeals of this penalty. d. The Permittee or any parent, subsidiary, or other affiliate of the Permittee is currently not compliant with any compliance schedule in a permit, settlement agreement, or order. e. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid an annual fee pursuant to 15A NCAC 02T .0105(e)(2). [ 15A NCAC 02T .0120(b), 02T .0120(d)] 9. Unless the Division Director grants a variance, the Division shall not renew this permit if the Permittee or any affiliation has not paid an annual fee pursuant to 15A NCAC 02T .0I05(e)(2). [15A NCAC 02T .0120 c , 02T .0120(d)] 10. The Permittee shall pay an annual fee for each year of the term of this permit pursuant to the schedule in G.S. 143-215.31)(a). The Permittee shall continue to pay annual fees for any facility operating on an expired permit that the Division has not rescinded or revoked. [ 15A NCAC 02T .0105(e)(2)] Permit issued this the 4' day of October 2023 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DocuSigned by: Na � aan is ( v"W� D1043082080C483... Richard E. Rogers, Jr., Director Division of Water Resources By Authority of the Environmental Management Commission Permit Number WQ0015053 WQ0015053 Version 5.0 Shell Version 230725 Page 10 of 10 ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS Currituck County PPI 001— WWTP Effluent Certification Date: October 4, 2023 Permit Number: WQ0015053 Version: 5.0 EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code Parameter Description Units of Measure Monthly Monthly Average Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 00310 BOD, 5-Day (20 °C) mg/L 15 Monthly Composite 00940 Chloride (as Cl) mg/L 3 x Year' Composite 50060 Chlorine, Total Residual mg/L 5 x Week Grab 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 200 Monthly Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 40,000 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 Monthly Composite 00625 Nitrogen, Kjeldahl, Total (as N) mg/L Monthly Composite 00620 Nitrogen, Nitrate Total (as N) mg/L Monthly Composite 00600 Nitrogen, Total (as N) mg/L Monthly Composite 00400 pH su 5 x Week Grab 00665 Phosphorus, Total (as P) mg/L Monthly Composite 70300 Solids, Total Dissolved — 180 °C mg/L 3 x Year 1 Composite 00530 Solids, Total Suspended mg/L 30 Monthly Composite 1. The Permittee shall conduct 3 x Year sampling in April, August, and November. WQ0015053 Version 5.0 Attachment A Page 1 of 2 ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS Currituck County PPI 002 — Drainage Ditch at Sample Point DD-1 (36.515925°,-76.172210°) Certification Date: October 4, 2023 Permit Number: WQ0015053 Version: 5.0 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 00610 Nitrogen, Ammonia Total (as N) mg/L 3 x Year' Grab 00600 Nitrogen, Total (as N) mg/L 3 x Year' Grab 00300 Oxygen, Dissolved (DO) mg/L 3 x Year' Grab 00665 Phosphorus, Total (as P) mg/L 3 x Year' Grab 1. The Permittee shall conduct 3 x Year sampling in April, August, and November. PPI 004 — Drainage Ditch at Sample Point DD-2 (36.5134630,-76.1667190) 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 00610 Nitrogen, Ammonia Total (as N) mg/L 3 x Year' Grab 00600 Nitrogen, Total (as N) mg/L 3 x Year Grab 00300 Oxygen, Dissolved (DO) mg/L 3 x Year Grab 00665 Phosphorus, Total (as P) mg/L 3 x Year Grab 1. The Permittee shall conduct 3 x Year sampling in April, August, and November. WQ0015053 Version 5.0 Attachment A Page 2 of 2 ATTACHMENT B — APPROVED LAND APPLICATION SITES AND LIMITATIONS Currituck County Certification Date: October 4, 2023 Permit Number: WQ0015053 Version: 5.0 INFILTRATION AREA INFORMATION APPLICATION LIMITATIONS Site Parcel No. County Latitude Longitude Net Dominant Parameter Rate Units Acreage Soil Series 1 Moyock Commons Sewer District' 0015000075JO000 Currituck 36.516412' -76.172499' 0.63 Ro — Roanoke Fine 01284 — Non -Discharge Application Rate 1.25 GPD/ft2 Sandy Loam 2 Moyock Commons Sewer District' 015B000008A0000 Currituck 36.513091' -76.167368' 0.63 Ro — Roanoke Fine 01284 — Non -Discharge Application Rate 1.25 GPD/ft2 Sandy Loam Total: 1.26 1. Moyock Commons Sewer District is part of Currituck County Governmental Structure. WQ0015053 Version 5.0 Attachment B Page 1 of 1 THIS PAGE BLANK ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Currituck County Monitoring Wells: MW-1 and MW-3 Certification Date: October 4, 2023 Permit Number: WQ0015053 Version: 5.0 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes 00680 Carbon, Total Organic (TOC) mg/L 3 x Year Grab 1,6 00940 Chloride (as CI) 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 1 70300 Solids, Total Dissolved - 180 °C 500 mg/L 3 x Year Grab 1 00945 Sulfate, Total (as SO4) 250 mg/L 3 x Year Grab 1 82546 Water Level, Distance from measuring point feet 3 x Year Calculated 1, 2, 3 1. The Permittee shall conduct 3 x Year monitoring in April, August, and November, and Annual monitoring in November. 2. The Permittee shall measure the water levels prior to purging the wells. The Permittee shall measure the depth to water in each well from the surveyed point on the top of the casing. The Permittee shall measure pH after purging and prior to sampling for the remaining parameters. 3. The Permittee shall survey the measuring points (top of well casing) of all monitoring wells to provide the relative elevation of the measuring point for each monitoring well. The Permittee shall survey the measuring points (top of casing) of all monitoring wells relative to a common datum. 4. If monitoring detects TOC concentrations greater than 10 mg/L in any downgradient monitoring well, the Permittee shall conduct additional sampling and analysis 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 shall represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells are subject to additional sampling and analysis as described above. 5. The Permittee shall report monitoring well data on Compliance Monitoring Forms (GW-59s) consistent with the nomenclature and location information provided in this attachment. WQ0015053 Version 5.0 Attachment C Page 1 of 1 FIGURE 1— SITE MAP Currituck County — Moyock Commons WWTP Permit Number: WQ0015053 Version: 5.0 WQ0015053 Figure 1 Page 1 of 2 FIGURE 1— SITE MAP Currituck Countv— Movock Commons WWTP Permit Number: WQ0015053 Version: 5.0 J WQ0015053 Figure 1 Page 2 of 2