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HomeMy WebLinkAboutWQ0031857_Final Permit_20240711 July 11, 2024 KATHRYN ADAMS – INTERIM TOWN MANAGER TOWN OF OAK ISLAND 4601 EAST OAK ISLAND DRIVE OAK ISLAND, NORTH CAROLINA 28465 Subject: Permit No. WQ0031857 Oak Island Satellite WRF Reclaimed Water Generation, Bulk Distribution, Conjunctive Utilization, and High-Rate Infiltration System Brunswick County Dear Ms. Adams, In response to your permit renewal request received on January 24, 2024, and subsequent additional information received on May 20, 2024, we are forwarding herewith Permit No. WQ0031857 dated July 11, 2024, to the Town of Oak Island for the continued operation of the subject reclaimed water generation, bulk distribution, conjunctive utilization, and high-rate infiltration facilities. This permit is effective from the date of issuance through October 31, 2030, shall replace Permit No. WQ0031857 issued on August 16, 2017, and is subject to the conditions and limitations therein. The Permittee shall submit a renewal application no later than May 4, 2030. Please pay 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 may result in future non-compliance. The Division has removed the following permit conditions since the last permit issuance dated August 16, 2017: ➢ Old Condition III.8 – The Division has replaced this condition with Condition III.21. ➢ Old Condition III.26 – The Division has removed this condition. ➢ Old Condition III.28 – The Division has replaced this condition with Conditions III.30, III.31, and III.32. ➢ Old Condition IV.1 – The Division has replaced this condition with Condition IV.1. ➢ Old Condition VI.2 – The Division has removed this condition because this permit is not voidable. The Division has added or modified the following permit conditions and attachments since the last permit issuance dated August 16, 2017: Ms. Kathryn Adams July 11, 2024 Page 2 of 4 ➢ Condition I.1 – The Division has moved Old Condition VI.5 from Section VI to Section I. ➢ Condition II.15 – The Division has modified Old Condition II.15 to replace “…apply for a permit modification to establish a new compliance boundary prior to…” with “…notify the Division of…”. ➢ Condition II.17 – The Division has modified Old Condition II.17 to reference the easement agreement filed on May 17, 2024, in the Brunswick County Register of Deeds and list the parcel containing the infiltration sites not owned by the Permittee. ➢ Condition II.18 – The Division has modified Old Condition II.9 to replace “10 feet” with “50 feet” regarding horizontal separation distances between reclaimed water distribution lines and water lines. ➢ Condition II.19 – The Division has modified Old Condition II.10 to replace “100 feet” with “50 feet” regarding separation distances between reclaimed water distribution lines and wells and remove “…or 50 feet from a public well”. ➢ Condition II.20 – The Division has modified Old Condition II.11 to reference 15A NCAC 02T .0305 regarding separation distances between reclaimed water distribution lines and sewer lines. ➢ Condition II.21 – The Division has modified the setbacks in Old Condition II.18 to correspond to the time of the original permitting or the most recent modification for each irrigation site, infiltration site, and storage/treatment unit. ➢ Condition III.2 – The Division has modified Old Condition III.2 to condense the required components of the Operation and Maintenance Plan. ➢ Condition III.8 – The Permittee shall test and calibrate the irrigation and infiltration equipment annually. ➢ Conditions III.9 and III.10 – The Division has separated Old Condition III.9. ➢ Condition III.11 – The Division has modified Old Condition III.10 to include “The Permittee shall take caution to protect the integrity of the infiltrative area”. ➢ Condition III.21 – The Permittee shall test and calibrate metering equipment annually. ➢ Condition III.22 – The Division has modified Old Condition III.11 to include “If the Permittee employs a generator as an alternate power supply, the Permittee shall test it weekly”. ➢ Condition III.23 – The Permittee shall provide continuous online monitoring and recording for turbidity or particle count and flow prior to storage, distribution, or utilization of reclaimed water. Ms. Kathryn Adams July 11, 2024 Page 3 of 4 ➢ Conditions III.27, IV.9, IV.11, IV.12, IV.15, V.2, and V.4 – The Division has modified the recordkeeping duration in Old Conditions III.27, IV.8, IV.9, IV.10, IV.11, V.2, and V.4 from five years to eight years because this permit renewal will be for eight years pursuant to 15A NCAC 02T .0111(e). ➢ Condition III.30 – The Permittee or Permittee-authorized users shall identify tank trucks and other equipment that transports bulk-distributed reclaimed water with advisory signs stating that they contain reclaimed water that is not for drinking. ➢ Condition III.31 – The Permittee or Permittee-authorized users shall not use tank trucks that transport potable water to transport bulk-distributed reclaimed water. ➢ Condition III.32 – The Permittee or Permittee-authorized users shall not fill tank trucks used to transport bulk-distributed reclaimed water using on-board piping or removable hoses that may subsequently fill potable water tanks. ➢ Condition III.33 – The Permittee shall develop and maintain an education and approval program for those accepting bulk-distributed reclaimed water. Educational materials shall instruct those accepting bulk-distributed reclaimed water about its proper use pursuant to 15A NCAC 02U and those Division-approved activities in Attachment D. ➢ Condition III.34 – The Permittee shall develop and maintain a record-keeping program for the bulk distribution of reclaimed water. ➢ Condition III.35 – The Permittee shall develop and maintain a routine review and inspection program for Permittee-approved bulk distribution reclaimed water users. ➢ Condition IV.1 – The Permittee shall conduct and report any Division-required monitoring, including the monitoring of groundwater, surface water or wetlands, waste, reclaimed water, residuals, soil, treatment processes, lagoon or storage ponds, and plant tissue, if necessary to evaluate this facility’s impact on groundwater and surface water. ➢ Condition IV.2 – The Division has modified Old Condition IV.2 to include “Parameters measured on-site with in-line metering equipment are exempt from a Division-certified laboratory analysis”. ➢ Condition IV.5 – The Permittee shall monitor the bulk-distributed reclaimed water at the frequencies and locations for the parameters specified in Attachment A. ➢ Condition IV.8 – The Division has modified Old Condition IV.7 to include the “Length of site infiltration time” and specify both “Continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings” and “Continuous monthly and year-to-date loadings for any non- hydraulic parameter specifically limited in Attachment B”. ➢ Condition IV.10 – The Division has modified Old Condition IV.12 to include the “Date of irrigation and infiltration equipment calibration” and “Visual observations of the bulk distribution facilities” in the maintenance log. ➢ Condition IV.16 – The Division has modified Old Condition IV.15 to include “Any failure rendering the reclaimed water bulk distribution facilities incapable of adequately conveying reclaimed water (e.g., mechanical or electrical failures)” and “Any facility failure resulting in a discharge to surface waters” in the noncompliance notification. Ms. Kathryn Adams July 11, 2024 Page 4 of 4 ➢ Condition V.3 – The Division has modified Old Condition V.3 to replace “…groundwater, surface water, or leachate samples” with “…influent, treatment process water, generated reclaimed water, residual, soil, plant tissue, groundwater, or surface water samples”. ➢ Condition VI.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 .0105(e)(2). ➢ Attachment A – The Division has modified PPI 002 to change the measurement frequency of parameter WQ01 (Flow, Reclaimed Water Distributed) from Per Event to Monthly. ➢ Attachment B – The Division has added Footnote 1 for the conjunctive utilization site regarding Form NDAR-1 and revised Footnote 1 for the high-rate infiltration basins to specify the Deed Book and Page No. of the executed and recorded easement. 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. 150B-23(a). If you need additional information concerning this permit, please contact Zachary Mega at (919) 707-3658 or zachary.mega@deq.nc.gov. Sincerely, Richard E. Rogers, Jr., Director Division of Water Resources cc: Brunswick County Health Department (Electronic Copy) Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy) Laserfiche File (Electronic Copy) Digital Permit Archive (Electronic Copy) WQ0031857 Version 3.0 Shell Version 230811 Page 1 of 15 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENTAL QUALITY RALEIGH RECLAIMED WATER GENERATION, BULK DISTRIBUTION, CONJUNCTIVE UTILIZATION, AND 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 Town of Oak Island Brunswick County FOR THE operation of a 400,000 gallon per day (GPD) reclaimed water generation, conjunctive utilization, bulk distribution, and high-rate infiltration facility consisting of the: continued operation of a reclaimed water generation system consisting of: a duplex 300 gallon per minute (GPM) influent pump station; a fine screen; two 10,500 gallon anoxic tanks with two 2.3 horsepower (hp) submersible mixers; two 42,000 gallon aeration tanks with fine bubble diffusers served by two 289 cubic feet per minute (CFM) blowers and two 105 GPM wasting pumps; two 5,420 gallon membrane tanks each served by a 265 CFM air scour blower, a 417 GPM membrane feed pump, and three racks of membrane modules with 16 modules per rack; a clean-in-place (CIP) system; two 150 GPM filtrate pumps with dual in-line turbidimeters; a liquid chlorine disinfection system (sodium hypochlorite) with two chemical metering pumps; a 131,000 gallon effluent storage tank; a duplex 300 GPM effluent pump station; a 75,000 gallon elevated storage/distribution tank; 2,200 linear feet (LF) of 4-inch PVC sludge force main; approximately 8,500 LF of 8-inch PVC reclaimed water line; an automatic sampler; a chlorine analyzer; an effluent flow meter; and all piping, valves, controls, and appurtenances; the continued operation of a bulk distribution station located at: Fill Station Location Owner County Latitude Longitude Middleton Park Complex -- Town of Oak Island Brunswick 33.912111° -78.116194° and all associated piping, valves, controls, and appurtenances; the continued operation of a conjunctive utilization system consisting of: a 2.71 acre spray irrigation area with five fields and a total of 122 spray nozzles each rated at 3.2 GPM to serve the Middleton Park Complex; and all piping, valves, controls, and appurtenances; and the WQ0031857 Version 3.0 Shell Version 230811 Page 2 of 15 continued operation of a high-rate infiltration system consisting of: a 0.53 acre high-rate infiltration basin with a loading rate of 8.45 gallons per day per square foot (GPD/ft²); a 0.39 acre high-rate infiltration basin with a loading rate of 5.19 GPD/ft²; a groundwater lowering system with nine wells each with a 30 GPM pump and located at least 200 feet from the high-water level of the high-rate infiltration basins; and all associated piping, valves, controls, and appurtenances to serve the Oak Island Satellite WRF, with no discharge of wastes to surface waters, pursuant to the application received on January 24, 2024, subsequent additional information received on May 20, 2024, and in conformity with the Division-approved plans and specifications considered a part of this permit. Please note that the Division has approved Alternative Design Criteria for the facility pursuant to 15A NCAC 02T .0105(n). The Division has approved the following administrative code for Alternative Design Criteria: ➢ 15A NCAC 02T .0705(c) – All open-atmosphere treatment lagoons and ponds and open-atmosphere storage and basin infiltration units shall have at least two feet of freeboard. ➢ 15A NCAC 02U .0705(l) – The Permittee shall provide a water-tight seal on all treatment and storage units or two feet of protection from the 100-year floodplain elevation. This permit is effective from the date of issuance through October 31, 2030, shall replace Permit No. WQ0031857 issued on August 16, 2017, and is subject to the following conditions and limitations: 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)] 2. The Permittee shall request renewal of this permit on Division-approved forms no later than May 4, 2030. [15A NCAC 02T .0105(b), 02T .0109, 02U .0105, 02U .0109] II. PERFORMANCE STANDARDS 1. The Permittee shall operate and maintain the subject reclaimed water generation, bulk distribution, conjunctive utilization, 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 utilization areas to assimilate the reclaimed water, the Permittee shall take immediate corrective actions, including Division-required actions, such as the construction of additional or replacement reclaimed water generation, bulk distribution, conjunctive utilization, and high-rate infiltration facilities, or cessation of reclaimed water bulk distribution and conjunctive utilization. [15A NCAC 02T .0108(b)(1)(A), 02U .0108] 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), 02U .0108] 3. Reclaimed water quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T .0705(b), 02U .0301] 4. The Permittee shall only irrigate generated reclaimed water at the sites and for the activities specified in Attachment B. [15A NCAC 02U .0401(g)] WQ0031857 Version 3.0 Shell Version 230811 Page 3 of 15 5. The Permittee shall not infiltrate effluent in exceedance of the hydraulic rates specified in Attachment B. [15A NCAC 02T .0705(m)] 6. The Permittee shall only bulk-distribute reclaimed water for the Division-approved uses specified in Attachment D. [15A NCAC 02T .0108(b)(1)(A), 02U .0108] 7. The Permittee shall tag or label all reclaimed water valves, storage facilities, and outlets to warn the public or employees that the reclaimed water is not for drinking. [15A NCAC 02U .0403(b)] 8. The Permittee shall color-code, tape, or otherwise mark all reclaimed water piping, valves, outlets, and other appurtenances to identify the source of the water as reclaimed water as follows: a. All reclaimed water piping and appurtenances shall be either colored purple (Pantone 522 or equivalent) and embossed or integrally stamped or marked “CAUTION: RECLAIMED WATER – DO NOT DRINK” or installed with a purple (Pantone 522 or equivalent) identification tape or polyethylene vinyl wrap. The warning shall be on opposite sides of the pipe and repeated every three feet or less. b. Identification tape shall be at least three inches wide and have white or black lettering on a purple (Pantone 522 or equivalent) field stating “CAUTION: RECLAIMED WATER – DO NOT DRINK”. The Permittee shall install identification tape on top of reclaimed water pipelines fastened at least every 10 feet to each pipe length and run continuously the entire length of the pipe. c. The Permittee shall tape or otherwise identify existing underground distribution systems retrofitted for conveying reclaimed water as described in Paragraphs a. and b. above. The Permittee shall perform this identification within 10 feet of any potable water supply line or sanitary sewer line crossing a reclaimed water line. The Permittee does not need to perform this identification for the entire length of the distribution system. [15A NCAC 02U .0403(c)] 9. The Permittee shall secure all reclaimed water valves and outlets such that only Permittee -authorized personnel can operate them. [15A NCAC 02U .0403(d)] 10. The Permittee shall place hose bibs in locked, below-grade vaults and label them non-potable. The Permittee may place hose bibs above ground and label them non-potable if the hose bibs require a tool to operate. [15A NCAC 02U .0403(e)] 11. There shall be no direct cross-connections between the reclaimed water and potable water systems unless such connection is Department-approved pursuant to 15A NCAC 18C .0406. [15A NCAC 02U .0403(f)] 12. For reclaimed water irrigation fields permitted on or after September 1, 2006, the Division has established the compliance and review boundaries at the irrigation 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(c), 02L .0107(f), 02T .0105(h), 02U .0501(a)(6)] WQ0031857 Version 3.0 Shell Version 230811 Page 4 of 15 13. 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 exc eedance 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(f), 02T .0105(h)] 14. 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 .0108] 15. 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(l)] 16. 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)] 17. 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 Brunswick 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 Brunswick 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(f). c. The Permittee has abandoned monitoring wells pursuant to 15A NCAC 02C .0113. Leisure Investments of North Carolina, Inc. (doing business as Oak Island Golf Club), has executed and recorded an easement in the Brunswick County Register of Deeds (Deed Book 5179 / Page No. 0321) for the compliance boundaries on Parcel No. 250EC001. [15A NCAC 02L .0107(k)] 18. Reclaimed water distribution lines shall be at least five feet horizontally from and 18 inches below any water line if practicable. If these separation distances cannot be met, the piping and integrity testing procedures shall meet water main standards pursuant to 15A NCAC 18C. [15A NCAC 02U .0403(g), 02U .0403(h)] 19. Reclaimed water distribution lines shall not be less than 50 feet from a well unless the piping and integrity testing procedures meet water main standards pursuant to 15A NCAC 18C, but in no case shall they be less than 25 feet from a private well. [15A NCAC 02U .0403(g), 02U .0403(i)] 20. Reclaimed water distribution lines shall meet the separation distances to sewer lines pursuant to 15A NCAC 02T .0305. [15A NCAC 02U .0403(g), 02U .0403(j)] WQ0031857 Version 3.0 Shell Version 230811 Page 5 of 15 21. The Permittee shall operate and maintain the permitted facilities pursuant to the following setbacks: a. The Division originally permitted the reclaimed water irrigation sites on February 22, 2011, with an application received on February 1, 2011. The setbacks for spray reclaimed water irrigation sites originally permitted or modified with an application received from September 1, 2006, through June 17, 2011, are as follows (all distances in feet): i. Surface waters classified SA: 100 ii. Surface waters not classified SA: 25 [15A NCAC 02T .0912(b), 02T .0912(c)] b. The Division originally permitted the treatment and storage units on September 5, 2007, with an application received on July 11, 2007. The setbacks for treatment and storage units originally permitted or modified with an application received from September 1, 2006, through June 17, 2011, are as follows (all distances in feet): i. Each habitable residence or place of assembly under separate ownership: 100 1 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 1 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. [15A NCAC 02T .0506(b), 02T .0912(a)] WQ0031857 Version 3.0 Shell Version 230811 Page 6 of 15 c. The Division originally permitted the infiltration sites on February 16, 2015, with an application received on January 13, 2015. The setbacks for high-rate infiltration sites originally permitted or modified with an application received from September 1, 2006, through August 31, 2018, are as follows (all distances in feet): i. Each habitable residence or place of assembly under separate ownership: 100 1 ii. Each habitable residence or place of assembly owned by the Permittee: 50 iii. Each private or public water supply source: 100 iv. Surface waters: 200 v. Groundwater lowering ditches: 200 vi. Surface water diversions: 50 vii. Each well with exception of monitoring wells: 100 viii. Each property line: 50 2 ix. Top of slope of embankments or cuts of two feet or more in vertical height: 100 x. Each water line: 10 xi. Subsurface groundwater lowering drainage systems: 200 xii. Each swimming pool: 100 xiii. Public right of way: 50 xiv. Nitrification field: 20 xv. Each building foundation or basement: 15 xvi. Each impounded public surface water supply: 500 xvii. Each public shallow groundwater supply (less than 50 feet deep): 500 1 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. [15A NCAC 02T .0706(a), 02T .0706(f), 02T .0706(g)] WQ0031857 Version 3.0 Shell Version 230811 Page 7 of 15 III. OPERATION AND MAINTENANCE 1. The Permittee shall operate and maintain the subject facilities as a non-discharge system. [15A NCAC 02T .0101, 02U .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. e. A sampling and monitoring plan to evaluate the quality of reclaimed water within the bulk distribution system to provide quality assurance at the time of reuse and specify the necessary actions in response to unsatisfactory monitoring results. f. Approval procedures for bulk distribution users. g. Operational requirements for bulk distribution users. h. A description of how the Permittee will ensure compliance with reclaimed water quality standards at the time of use if the bulk distribution user does not utilize the reclaimed water within 72 hours. [15A NCAC 02T .0707(a), 02U .0801(a)] 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, 02U .0117] 4. An operator certified by the Water Pollution Control System Operators Certification Commission (WPCSOCC) of a grade equivalent or greater than the facility classification shall be on call 24 hours per day. [15A NCAC 02U .0401(e)] 5. The Permittee shall maintain a year-round vegetative cover on the irrigation area such that crop health is optimal and allows even reclaimed water distribution and inspection of the irrigation system. [15A NCAC 02U .0801(b)] 6. The Permittee shall take measures to prevent reclaimed water ponding in or runoff from the irrigation area. [15A NCAC 02U .0801(c)] 7. The Permittee shall not irrigate generated reclaimed water during inclement weather or when the soil is in a condition that will cause ponding or runoff. [15A NCAC 02U .0401(k)] 8. The Permittee shall test and calibrate the irrigation and infiltration equipment annually. [15A NCAC 02T .0707(d), 02U .0801(d)] 9. The Permittee shall only bulk-distribute reclaimed water generated from the Oak Island Satellite WRF. [15A NCAC 02U .0101] 10. The Permittee shall only irrigate and infiltrate reclaimed water generated from the Oak Island Satellite WRF at the sites and for the activities listed in Attachment B. [15A NCAC 02T .0701, 02U .0101] WQ0031857 Version 3.0 Shell Version 230811 Page 8 of 15 11. The Permittee shall not allow vehicles or heavy machinery on the irrigation and 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), 02U .0801(e)] 12. The Permittee shall prohibit public access to the reclaimed water generation and storage facilities. [15A NCAC 02T .0108(b)(1)(A), 02U .0108] 13. The Permittee shall prohibit public access to the infiltration facilities. [15A NCAC 02T .0705(p)] 14. The Permittee shall control public access to reclaimed water irrigation sites during active site use. [15A NCAC 02U .0501(a)(2)] 15. The Permittee shall dispose of or utilize generated residuals in a Division-approved manner. [15A NCAC 02T .0708, 02T .1101, 02U .0802]. 16. The Permittee shall not divert or bypass untreated or partially treated reclaimed water from the subject facilities unless diverted to an alternate permitted treatment or collection system. [15A NCAC 02T .0108(b)(1)(A), 02T .0705(i), 02U .0108] 17. The Permittee shall provide a water-tight seal on all reclaimed water generation and storage units or provide two feet of protection from the 100-year floodplain elevation. [15A NCAC 02T .0108(b)(1)(A), 02T .0705(l), 02U .0108] 18. The Permittee shall maintain a freeboard of not less than one foot in the high-rate infiltration basins. [15A NCAC 02T .0705(c)] 19. The Permittee shall provide gauges to monitor freeboard levels in the 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(f)] 20. 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), 02U .0801(g)] 21. The Permittee shall test and calibrate metering equipment annually. [15A NCAC 02T .0707(d), 02U .0801(d)] 22. The Permittee shall provide an automatically activated standby power source or other means to prevent improperly treated wastewater from entering the storage, distribution, or utilization system. If the Permittee employs a generator as an alternate power supply, the Permittee shall test it weekly. [15A NCAC 02T .0705(k), 02U .0401(d)] 23. The Permittee shall provide continuous online monitoring and recording for turbidity or particle count and flow prior to storage, distribution, or utilization of reclaimed water. [15A NCAC 02U .0401(b)] WQ0031857 Version 3.0 Shell Version 230811 Page 9 of 15 24. If the generated reclaimed water exceeds 10 nephelometric turbidity units (NTUs) or the pathogen limits in Attachment A, the Permittee shall prohibit all generated reclaimed water from entering the storage, distribution, or utilization system, and shall dispose of the generated reclaimed water pursuant to Permit No. NC0023693 until the reclaimed water standards are met. [15A NCAC 02U .0401(c)] 25. The Permittee shall provide notification to the public and its employees about the use of reclaimed water and that reclaimed water is not for drinking. The Permittee shall provide notification to employees in a language they understand. [15A NCAC 02U .0501(a)(2)] 26. The Permittee shall develop and implement an education program to inform users and its employees about the proper use of reclaimed water. The Permittee shall provide educational material to all residents and/or other facilities provided with reclaimed water . The Permittee shall make all educational materials available to the Division upon request. [15A NCAC 02U .0501(a)(4)] 27. 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 Wilmington Regional Office, telephone number (910) 796-7215. [15A NCAC 02T .0707(h)] 28. Reclaimed water used for activities other than irrigation shall not cause exposure to aerosols. [15A NCAC 02U .0501(b)(6)] 29. The Permittee or Permittee-authorized users shall not use reclaimed water for swimming pools, hot tubs, spas, or similar uses. [15A NCAC 02U .0501(c)] 30. The Permittee or Permittee-authorized users shall identify tank trucks and other equipment that transport bulk-distributed reclaimed water with advisory signs stating that they contain reclaimed water that is not for drinking. [15A NCAC 02U .0601(a)] 31. The Permittee or Permittee-authorized users shall not use tank trucks that transport potable water to transport bulk-distributed reclaimed water. [15A NCAC 02U .0601(b)] 32. The Permittee or Permittee-authorized users shall not fill tank trucks used to transport bulk-distributed reclaimed water using on-board piping or removable hoses that may subsequently fill potable water tanks. [15A NCAC 02U .0601(c)] 33. The Permittee shall develop and maintain an education and approval program for those accepting bulk- distributed reclaimed water. Educational materials shall instruct those accepting bulk-distributed reclaimed water about its proper use pursuant to 15A NCAC 02U and those Division-approved activities in Attachment D. [15A NCAC 02U .0601(d)] 34. The Permittee shall develop and maintain a record-keeping program for the bulk distribution of reclaimed water. [15A NCAC 02U .0601(e)] 35. The Permittee shall develop and maintain a routine review and inspection program for Permittee- approved bulk distribution reclaimed water users. [15A NCAC 02U .0601(f)] WQ0031857 Version 3.0 Shell Version 230811 Page 10 of 15 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, reclaimed water, 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), 02U .0108] 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), 02U .0105, 02U .0108] 4. The Permittee shall monitor the generated reclaimed water at the frequencies and locations for the parameters specified in Attachment A. [15A NCAC 02T .0105(k), 02T .0108(c), 02U .0105, 02U .0108] 5. The Permittee shall monitor the bulk-distributed reclaimed water at the frequencies and locations for the parameters specified in Attachment A. [15A NCAC 02T .0105(k), 02T .0108(c), 02U .0105, 02U .0108] 6. The Permittee shall maintain records tracking the amount of reclaimed water distributed and shall include the following information: a. Date reclaimed water distributed; and b. Volume of reclaimed water distributed to each site specified in Attachment B. The Permittee shall sum the monthly water distributed and report on Form NDMR (see Attachment A) under parameter WQ01 (Flow, Reclaimed Water Distributed). This value shall represent the total volume of reclaimed water distributed for that month. [15A NCAC 02T .0108(c), 02U .0108] 7. The Permittee shall maintain records tracking the amount of reclaimed water bulk-distributed to each Permittee-approved user and shall include 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-distributed reclaimed water. d. Volume of reclaimed water per bulk distribution event. e. Monthly total volume of reclaimed water bulk-distributed. The Permittee shall sum the monthly water bulk-distributed and report on Form NDMR (see Attachment A) under parameter WQ01 (Flow, Reclaimed Water Distributed). This value shall represent the total volume of reclaimed water bulk-distributed for that month. [15A NCAC 02T .0108(c), 02U .0108] WQ0031857 Version 3.0 Shell Version 230811 Page 11 of 15 8. 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)] 9. 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 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)] 10. On or before the last day of the month following the previous month’s sampling, t he Permittee shall submit monitoring data (as specified in Conditions IV.3, IV.4, IV.5, IV.6, and IV.7) on Form NDMR for each PPI and operation and disposal records (as specified in Conditions IV.8 and IV.9) on Form NDAR-2 for the infiltration sites listed 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(l), 02U .0105] 11. 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), 02U .0802(b)] 12. 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 irrigation and infiltration equipment calibration. c. Date of turbidimeter calibration. d. Visual observations of the plant and plant site. e. Visual observations of the bulk distribution facilities. f. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections, cleanings, etc.). g. Record of all discharges of reclaimed water to surface waters or the land surface, including the date of occurrence, estimated volume, and corrective action taken. [15A NCAC 02T .0707(i), 02U .0801(h)] 13. The Permittee shall sample monitoring wells MW-1, MW-2, and MW-3 at the frequencies and for the parameters specified in Attachment C. [15A NCAC 02T .0105(m), 02U .0105] WQ0031857 Version 3.0 Shell Version 230811 Page 12 of 15 14. 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), 02U .0105] 15. The Permittee shall develop and maintain a routine review and inspection program for offsite users of conjunctive reclaimed water. The Permittee shall maintain an inspection log for eight years and shall make it available to the Division upon request. This log shall include: a. Visual observations of the reclaimed water user sites. b. Record of preventative maintenance (e.g., pump and valve maintenance, cross-connection control, etc.). [15A NCAC 02U .0801(i)] 16. Noncompliance Notification: The Permittee shall report to the Wilmington Regional Office, telephone number (910) 796-7215, 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 reclaimed water generation. c. Any failure rendering the reclaimed water bulk distribution facilities incapable of adequately conveying reclaimed water (e.g., mechanical or electrical failures). d. Any facility failure resulting in a discharge to surface waters. e. Any time self-monitoring indicates the facility has gone out of compliance with its permit limitations. f. Ponding in or runoff from the irrigation sites. g. Effluent breakout from the infiltration sites. h. Any failure resulting in a discharge of reclaimed water directly to surface waters or any release of reclaimed water to land surface greater than or equal to 5,000 gallons. The Permittee shall document releases less than 5,000 gallons to land surface pursuant to Condition IV.12.g but does not require Regional Office notification. 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 Wilmington 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), 02U .0108] WQ0031857 Version 3.0 Shell Version 230811 Page 13 of 15 V. INSPECTIONS 1. The Permittee shall perform inspections and maintenance to ensure proper operation of the reclaimed water generation, bulk distribution, conjunctive utilization, and high-rate infiltration facilities. [15A NCAC 02T .0707(j), 02U .0801(i)] 2. The Permittee shall inspect the reclaimed water generation, bulk distribution, conjunctive utilization, and high-rate 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), 02U .0801(h), 02U .0801(i)] 3. Division-authorized representatives may, upon presentation of credentials, enter and inspect any property, premises, or place related to the permitted reclaimed water generation, bulk distribution, conjunctive utilization, and high-rate 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, generated reclaimed water, residual, soil, plant tissue, groundwater, or surface water samples. [G.S. 143-215.3(a)(2)] 4. The Permittee shall inspect the utilization sites of all reclaimed water users who obtain more than 10,000 GPD of bulk-distributed reclaimed water. Permittee inspection of these bulk distribution reclaimed water utilization sites shall occur once every three months. The Permittee shall maintain records of these inspections for eight years and shall make them available to the Division upon request. [15A NCAC 02T .0108(b)(1)(A), 02U .0108] WQ0031857 Version 3.0 Shell Version 230811 Page 14 of 15 VI. 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)] 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), 02U .0105] 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 .0108(b)(1)(A), 02U .0108] 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), 02U .0105, 02U .0116] 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(j), 02U .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, 15A NCAC 02T, or 02U. 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 .0110, 02U .0110] WQ0031857 Version 3.0 Shell Version 230811 Page 15 of 15 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, 15A NCAC 02T, or 02U. 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) via 15A NCAC 02U .0105. [15A NCAC 02T .0120(b), 02T .0120(d), 02U .0120] 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 .0105(e)(2). [15A NCAC 02T .0120(c), 02T .0120(d), 02U .0105, 02U .0120] 10. The Permittee shall pay an annual fee for each year of the term of this permit pursuant to the schedule in G.S. 143-215.3D(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), 02U .0105] Permit issued this the 11th day of July 2024 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION ____________________________________________ Richard E. Rogers, Jr., Director Division of Water Resources By Authority of the Environmental Management Commission Permit Number WQ0031857 THIS PAGE BLANK ATTACHMENT A – LIMITATIONS AND MONITORING REQUIREMENTS Certification Date: July 11, 2024 Town of Oak Island Permit Number: WQ0031857 Version: 3.0 WQ0031857 Version 3.0 Attachment A Page 1 of 2 PPI 001 – Reclaimed Water Generation System Effluent 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 ºC) mg/L 10 15 2 x Month Composite 00940 Chloride (as Cl) mg/L 3 x Year 1 Composite 50060 Chlorine, Total Residual mg/L 5 x Week Grab 31616 Coliform, Fecal MF, M-FC Broth, 44.5 ºC #/100 mL 14 25 2 x Month Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 400,000 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 6 2 x Month Composite 00625 Nitrogen, Kjeldahl, Total (as N) mg/L 2 x Month Composite 00620 Nitrogen, Nitrate Total (as N) mg/L 10 2 2 x Month Composite 00600 Nitrogen, Total (as N) mg/L 2 x Month Composite 00400 pH su 5 x Week Grab 00665 Phosphorus, Total (as P) mg/L 2 x Month Composite 70300 Solids, Total Dissolved – 180 ºC mg/L 3 x Year 1 Composite 00530 Solids, Total Suspended mg/L 5 10 2 x Month Composite 00076 Turbidity, HCH Turbidimeter NTU 10 Continuous Recorder 1. The Permittee shall conduct 3 x Year sampling in March, July, and November. 2. The 10 mg/L effluent limit for Total Nitrate (00620) is for treated effluent disposed of via the high-rate infiltration basins pursuant to 15A NCAC 02T .0705(b). ATTACHMENT A – LIMITATIONS AND MONITORING REQUIREMENTS Certification Date: July 11, 2024 Town of Oak Island Permit Number: WQ0031857 Version: 3.0 WQ0031857 Version 3.0 Attachment A Page 2 of 2 PPI 002 – Reclaimed Water Bulk Distribution Station EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code Parameter Description Units of Measure Monthly Total Monthly Geometric Mean Monthly Average Daily Maximum Measurement Frequency Sample Type 50060 Chlorine, Total Residual mg/L Monthly Grab 31616 Coliform, Fecal MF, M-FC Broth, 44.5 ºC #/100 mL 14 25 Monthly Grab WQ01 Flow, Reclaimed Water Distributed gallons Monthly Estimate PPI 003 – Distributed Reclaimed Water for Conjunctive Utilization EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code Parameter Description Units of Measure Monthly Total Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type WQ01 Flow, Reclaimed Water Distributed gallons Monthly Estimate ATTACHMENT B – APPROVED LAND APPLICATION SITES AND LIMITATIONS Certification Date: July 11, 2024 Town of Oak Island Permit Number: WQ0031857 Version: 3.0 WQ0031857 Version 3.0 Attachment B Page 1 of 1 UTILIZATION AREA INFORMATION APPLICATION LIMITATIONS Site Owner Parcel No. County Latitude Longitude Net Acreage Dominant Soil Series Approved Use Parameter Hourly Rate Units 1 Town of Long Beach 249DB003 Brunswick 33.911142° -78.115901° 2.71 KrB – Kureb Irrigation 01284 – Non-Discharge Application Rate 1.0 inches Total: 2.71 1. The Permittee does not have to report utilization records for this site on Form NDAR-1. INFILTRATION AREA INFORMATION APPLICATION LIMITATIONS Site Owner 1 Parcel No. County Latitude Longitude Net Acreage Dominant Soil Series Parameter Rate Units 2 Leisure Investments of North Carolina, Inc. 250EC001 Brunswick 33.907053° -78.066044° 0.53 WaB – Wando 01284 – Non-Discharge Application Rate 8.45 GPD/ft2 3 Leisure Investments of North Carolina, Inc. 250EC001 Brunswick 33.907880° -78.065073° 0.39 WaB – Wando 01284 – Non-Discharge Application Rate 5.19 GPD/ft2 Total: 0.92 1. Leisure Investments of North Carolina, Inc. (doing business as Oak Island Golf Club) and the Town of Oak Island have executed and recorded an easement in the Brunswick County Register of Deeds (Deed Book 5179 / Page No. 0321) allowing the operation of the high-rate infiltration basins. THIS PAGE BLANK ATTACHMENT C – GROUNDWATER MONITORING AND LIMITATIONS Certification Date: July 11, 2024 Town of Oak Island Permit Number: WQ0031857 Version: 3.0 WQ0031857 Version 3.0 Attachment C Page 1 of 1 Monitoring Wells: MW-1, MW-2, and MW-3 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes 00940 Chloride (as Cl) 250 mg/L 3 x Year Grab 1 31616 Coliform, Fecal MF, M-FC Broth, 44.5 ºC #/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 ºC 500 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 March, July, and 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. The Permittee shall report monitoring well data on Compliance Monitoring Forms (GW-59s) consistent with the nomenclature and location information provided in this attachment. THIS PAGE BLANK ATTACHMENT D – APPROVED RECLAIMED WATER BULK DISTRIBUTION USES Certification Date: July 11, 2024 Town of Oak Island Permit Number: WQ0031857 Version: 3.0 WQ0031857 Version 3.0 Attachment D Page 1 of 1 APPROVED PERMITTEE USES 1 ADDITIONAL REQUIREMENTS AND COMMENTS Firefighting and fire extinguishing Must meet Public Water Supply requirements pursuant to 15A NCAC 18C .0100 - .2200. Reclaimed water distribution line flushing and pressure testing Provided the Permittee returns the water to the sanitary sewer or uses it for other Division- approved reclaimed water uses after testing. Vehicle and equipment washing Provided that no ponding or run-off of the reclaimed water occurs. 1. All employees shall complete educational training prior to utilizing bulk-distributed reclaimed water. APPROVED USES FOR BULK-DISTRIBUTED RECLAIMED WATER RECIPIENTS 2 ADDITIONAL REQUIREMENTS AND COMMENTS Concrete cutting Decorative ponds and fountains that drain to sanitary sewer systems Hydro-seeding and fertilizer mixing Industrial and commercial cooling water or boiler blowdown water Provided the user disposes of cooling water or boiler blowdown water 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 User applies brine slurry to roads to prevent freezing. Irrigation of food chain crops Provided user meets all conditions of 15A NCAC 02U .1401. 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 clay 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 the user provides dual disinfection with UV and chlorination, and that no ponding or run-off of the reclaimed water occurs. 2. All recipients of bulk-distributed reclaimed water users shall complete educational training and be Permittee-certified prior to receiving reclaimed water. ro L am r' tb Y * � 1 kr[tracaasta! Waterway r 11 17 1� ri e l 1 GQogle Faith r, a9� 20Q4 A[ruus Navy Ids i� eta 510. NOAA`v �' Irce9e � 202� Terra�trics I Figure 2 — Middleton Park Complex Permit No. WQ0031857 -4� ge Mott 4 IF 4F X pit w Af 0 A at D�% Ab FAw- Mop. ff. Legend Conjunctive Utilization Site LEI� r]