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HomeMy WebLinkAboutWQ0035809_Final Permit_20230130ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director NORTH CAROLINA Environmental Quality January 30, 2023 JOHN MCDONALD — MANAGING MEMBER OLD NORTH STATE WATER COMPANY, LLC POST OFFICE BOX 10127 BIRMINGHAM, ALABAMA 35202 Dear Mr. McDonald: Subject: Permit No. WQ0035809 Stateside WWTP High -Rate Infiltration System Onslow County In accordance with your permit renewal request received July 18, 2022, and subsequent additional information received November 17, 2022, we are forwarding herewith Permit No. WQ0035809 dated January 30, 2023, to Old North State Water Company for the construction and operation of high -rate infiltration Basins 1 and 2, as well as the continued operation of the existing wastewater treatment and high - rate infiltration facilities. The following modifications to the subject permit are as follows: The loading rates for high -rate infiltration Basins 3, 4, and 5 have been adjusted based on the Hydrogeologic Certifications performed by Edwin Andrews. Basin 93 is certified for 108,900 gallons per day (GPD) or 3.01 GPD per square foot (GPD/ft), Basin 4 is certified for 75,000 GPD or 3.37 GPD/ W, and Basin 5 is certified for 50,000 GPD or 2.67 GPD/ft2. This permit shall be effective from the date of issuance through March 31, 2030, shall replace Permit No. WQ0035809 issued March 1, 2017, and shall be subject to the conditions and limitations therein. The Permittee shall submit a renewal application no later than October 2, 2029. Please pay attention to the monitoring requirements listed Attachments A, B, and C for they may differ from the previous permit issuance. Failure to establish an adequate system for collecting and maintaining the required operational information shall result in future compliance problems. The Division has removed the following permit conditions since the last permit issuance dated March 1, 2017: ➢ Old Condition I. I. — This condition has been removed because a setback waiver has been received. ➢ Old Condition L2. — This condition has been removed because an O&M Plan was received. ➢ Old Condition L3. — This condition has been removed because a residuals management plan has been received. ➢ Old Condition L6. — This condition has been removed because two basins have been constructed in accordance with O&M requirements. D � 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 NOR�HCAROLINA '.'roMMm 0­; /I 919,707,9000 Mr. John McDonald January 30, 2023 Page 2 of 3 ➢ Old Condition VL2. — This condition has been removed because permits are not voidable. The following permit conditions are new since the last permit issuance dated March 1, 2017: ➢ Condition L2. — This condition is a modification of Condition L5. of the previous permit, which adds the condition to submit a modification request if the results of the hydrogeologic investigation finds the loading rates of the fields are less than what was listed in Attachment B. ➢ Condition IIL4. — Infiltration equipment shall be tested and calibrated once per permit cycle. ➢ Condition IIL 13. — Metering equipment shall be tested and calibrated annually. ➢ Condition III.14. — An automatically activated standby power source capable of powering all essential treatment units shall be on site and operational at all times. ➢ Condition IV.5.d. — The infiltration records shall include the length of time a site is infiltrated. ➢ Condition IV.9.b. and c. — The maintenance log for the facility shall note the date of infiltration equipment calibration, date of turbidimeter calibration, and the date of power interruption testing. ➢ Condition IV.10. — Monitoring wells shall be sampled at the frequencies and for the parameters specified in Attachment C. ➢ Condition VI.10. — This permit shall not be renewed if the Permittee or any affiliation has not paid the required annual fee. ➢ Condition VI.11. — Pursuant to the flow reduction request received April 4, 2022 and June 1, 2022, and approved July 22, 2022, the Division accepts the data -based design flow rate of 65 gallons per day per bedroom (GPDBDR) with a minimum of 130 GPD for 1- and 2- bedroom dwellings for the users served by this facility. ➢ Condition VI.12. — The Permittee shall retain the Division's written approval of the authorized adjusted daily design flow rate for the life of this facility, and shall transfer this approval to any future Permittee. If any parts, requirements, or limitations contained in this permit are unacceptable, the Permittee has the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request shall be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail Service Center, Raleigh, NC 27699-6714. Otherwise, this permit shall be final and binding. Mr. John McDonald January 30, 2023 Page 3 of 3 If you need additional information concerning this permit, please contact Erick Saunders at (919) 707-3659 or erickson.saunderskncdenr.gov. Sincerely, DDocuSigned by: T..u. "woN83 Richard E.8 Rogers, Jr., Director Division of Water Resources cc: Onslow County Health Department (Electronic Copy) Wilmington Regional Office, Water Quality Regional Operations Section (Electronic Copy) Laserfiche File (Electronic Copy) Digital Permit Archive (Electronic Copy) THIS PAGE BLANK NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENTAL QUALITY RALEIGH HIGH -RATE INFILTRATION SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Old North State Water Company, LLC Onslow County FOR THE operation of a 100,000 gallon per day (GPD) wastewater treatment and high -rate infiltration facility consisting of construction and operation of a 100,000 GPD high -rate infiltration system consisting of two high -rate infiltration basins (Basins I and 2) with a cumulative area of 0.92 acres at a permitted loading rate of 2.47 GPD/fC (loading rates to be verified); and all associated piping, valves, controls, and appurtenances; the continued operation of a 100,000 GPD Phase I wastewater treatment facility consisting of. a magnetic flow meter; a 2 millimeter (mm), 0.35 horsepower (hp), 1,300 gallon per minute (GPM) mechanical screen; a 28,951 gallon flow equalization tank with two 1.75 hp, 120 GPM pumps (one serving as a spare), and a 40 cubic feet per minute (CFM) variable frequency drive (VFD) blower (which splits duty with the sludge holding tank); a 13,465 gallon anoxic I tank with a 2.7 hp mixer served by alum and supplemental carbon chemical feeds; a 13,465 gallon oxidation tank with two internal recycle pumps (one serving as a spare) and served by a 179 CFM VFD blower providing fine bubble aeration; a 13,465 gallon anoxic II tank with a 2.7 hp mixer and two 410 GPM sludge recirculation pumps (one serving as a spare); a 13,465 gallon membrane tank with 16 A3-USA U70 membranes (4 membranes staked 4 high) at 7.7 GPD per square foot (GPD/ft2) average flux rate and 86.8 GPM permeate rate served by a 28.5 CFM blower providing find bubble aeration; a 28,951 gallon sludge holding tank served by a 30 CFM blower (which splits duty with the flow equalization tank) providing coarse bubble aeration; a seagoing container adjacent to the concrete tankage that contains the permeate pumps, blowers, electrical controls, SCADA system, sludge waste pump, chlorine disinfection system, composite sampler, flow measurement instrumentation, two ultraviolet (UV) disinfection units, and high rate infiltration basin distribution valving; a 175 kilo -volt-ampere (kVA) backup generator and all associated piping, valves, controls, and appurtenances; the continued operation of a 233,704 GPD high -rate infiltration system consisting of three high -rate infiltration basins (Basins 3, 4 and 5) with a cumulative area of 1.77 acres; and all associated piping, valves, controls, and appurtenances; and the continued operation of a groundwater lowering system consisting of approximately 4,726 linear feet of fl- inch perforated pipe to remove an average of 413,000 GPD of groundwater onto rip rap aprons prior to entering wetlands adjacent to Margaret Branch; and all associated piping, valves, controls, and appurtenances WQ0035809 Version 2.0 Shell Version 200201 Page 1 of 13 to serve the Stateside WWTP, with no discharge of wastes to surface waters, pursuant to the application received July 18, 2022, subsequent additional information received November 17, 2022, and in conformity with the Division -approved plans and specifications considered a part of this permit. This permit shall be effective from the date of issuance through March 31, 2030, shall replace Permit No. WQ0035809 issued March 1, 2017, and shall be subject to the following conditions and limitations: I. SCHEDULES Upon completion of construction and prior to operation of Basins 1 and 2, the Permittee shall submit an engineering certification from a North Carolina licensed Professional Engineer certifying that the permitted facility has been constructed in accordance with G.S. 143-215.1, Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and specifications. For phased and partially certified facilities, the Permittee shall retain the responsibility to track further construction approved under this permit, and shall provide a final engineering certification upon project completion. Mail the Engineering Certification to the Division of Water Resources, Non -Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-Discharge.Reportskncdenr.gov. [15A NCAC 02T .0116(a)] 2. Upon completion of construction and prior to operation of the remaining unconstructed high -rate infiltration basins, each basin shall be inspected by a licensed Professional Geologist to verify that the constructed basins will be capable of receiving the wastewater at the permitted loading rates. If the loading rates from this inspection are less than the rates currently listed in Attachment B of this permit, a permit modification shall be submitted to reflect the reduced capacity of these basins. The results of this inspection, along with the results of any testing performed, shall be signed, sealed and submitted with the modification request (if required) to the Division of Water Resources, Non -Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non-Discharge.Reportskncdenr.gov. [15A NCAC 02T .0108(b)(1)(B)] 3. The Permittee shall notify the Wilmington Regional Office, telephone number (910) 796-7215, at least two business days in advance of initial operation of the constructed facilities so that the Division can conduct a startup inspection. [15A NCAC 02T .0108(b)(1)(B)] 4. The Wilmington Regional Office, telephone number (910) 796-7215, shall approve monitoring wells MW-I, MW-2, and MW-3 prior to installation, and the monitoring wells shall be installed prior to beginning waste disposal operations. The Wilmington Regional Office shall be notified at least two business days in advance of construction of any monitoring well. The monitoring wells shall be constructed such that the water level in the well is never above or below the screened portion of the well, and in accordance with 15A NCAC 02C .0108. The general location and Division -approved name for each monitoring well is on Figure I. [15A NCAC 02C .0108, 02T .0108(b)(1)(B)] WQ0035809 Version 2.0 Shell Version 200201 Page 2 of 13 5. Within 90 days of completing installation of monitoring wells MW-I, MW-2, and MW-3, the Permittee shall submit two original copies and one digital copy of a site map with a scale no greater than 1-inch equals 100 feet; however, special provisions may be granted upon prior approval for large properties. The map shall include the following information: a. Legend, north arrow, scale, and legible in black and white. b. Topographic contour intervals not exceeding 10 feet or 25 percent of total site relief. c. All habitable residences or places of assembly within 500 feet of the infiltration area. d. Location of all wells, streams (ephemeral, intermittent, and perennial), springs, lakes, ponds, ditches, and other surface drainage features within 500 feet of the infiltration area. e. Location and identification of each monitoring well (identify any background/upgradient wells). f. Latitude and longitude coordinates of each monitoring wells (decimal degrees to the sixth decimal degree and in NAD83). g. Location and identification of major components of the waste disposal system. h. The perimeter of all infiltration areas with field names (named according to the approved permit) i. Location and ownership of property boundaries within 500 feet of the infiltration area (including road/rail right-of-ways and easements). j. Latitude and longitude of the established horizontal control monument (decimal degrees to the sixth decimal degree). k. Elevation of the top of the well casing (i.e., measuring point) relative to a common datum. 1. Depth of water below the measuring point at the time the measuring point is established. in. Delineation of the compliance and review boundaries. n. Distance measurements verifying all setbacks are being met. o. Stormwater drainage controls. p. 100-year floodplain. q. The date the map is prepared and/or revised. r. Location of the groundwater lowering system and discharge point (if present). Boundaries and physical features not under purview of other licensed professions shall be provided by a Professional Surveyor. Control monuments shall be installed in such a manner and made of such materials that the monument will not be destroyed due to activities taking place on the property. The map and any supporting documentation shall be sent to the Division of Water Resources, Non - Discharge Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617, or Non- Discharge.Reportskncdenr.gov. [15A NCAC 02C .0105(f), 02T .0108(b)(1)(B)] 6. Gauges to monitor waste levels in the Basins 1 and 2 shall be installed prior to operation. Caution shall betaken not to damage the integrity of any liner (if present) when installing a gauge. [15A NCAC 02T .0108(b)(1)(B), 02T .0705(c)] 7. The Permittee shall request renewal of this permit on Division -approved forms no later than October 2, 2029. [15A NCAC 02T .0105(b), 02T .0109] WQ0035809 Version 2.0 Shell Version 200201 Page 3 of 13 IL PERFORMANCE STANDARDS 1. The Permittee shall maintain and operate the subject non -discharge facilities so there is no discharge to surface waters, nor any contravention of groundwater or surface water standards. In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions due to improper operation and maintenance, or failure of the infiltration areas to 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)] 2. This permit shall not relieve the Permittee of their responsibility for damages to groundwater or surface water resulting from the operation of this facility. [15A NCAC 02T .0108(b)(1)(A)] 3. Groundwater monitoring wells shall be constructed in accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water Supply), and any other jurisdictional laws and regulations pertaining to well construction. [15A NCAC 02C .0108] 4. Effluent quality shall not exceed the limitations specified in Attachment A. [15A NCAC 02T .0705(b)] 5. Application rates, whether hydraulic, nutrient, or other pollutant, shall not exceed those specified in Attachment B. [15A NCAC 02T .0705(m)] 6. High -rate infiltration sites permitted on or after December 30, 1983 have a compliance boundary that is either 250 feet from the infiltration area, or 50 feet within the property boundary, whichever is closest to the infiltration area. Any exceedance of groundwater standards at or beyond the compliance boundary shall require corrective action. Division -approved relocation of the compliance boundary shall be noted in Attachment B. Multiple contiguous properties under common ownership and permitted for use as a disposal system shall be treated as a single property with regard to determination of a compliance boundary. [15A NCAC 02L .0106(d)(2), 02L .0107(b), 02T .0105(h), G.S. 143- 215.1(1), G.S. 143-215.1(k)] 7. The review boundary is midway between the compliance boundary and the infiltration area. Any exceedance of groundwater standards at or beyond the review boundary shall require preventative action. [15A NCAC 02L .0106(d)(1), 02L .0108] 8. The Permittee shall apply for a permit modification to establish a new compliance boundary prior to any sale or transfer of property affecting a compliance boundary (i.e., parcel subdivision). [ 15A NCAC 02L .0107(c)] 9. No wells, excluding Division -approved monitoring wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L .0107(g). [15A NCAC 02L .0107] 10. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is not the Permittee and owns land within the compliance boundary shall execute and file with the Onslow County Register of Deeds an easement running with the land containing the following items: a. A notice of the permit and number or other description as allowed in 15A NCAC 02L .0107(f)(1); b. Prohibits construction and operation of water supply wells within the compliance boundary; and c. Reserves the right of the Permittee or the State to enter the property within the compliance boundary for purposes related to the permit. The Director may terminate the easement when its purpose has been fulfilled or is no longer needed. [I5A NCAC 02L .0107(f)] WQ0035809 Version 2.0 Shell Version 200201 Page 4 of 13 11. The facilities herein were permitted per the following setbacks: a. The infiltration sites were originally permitted August 16, 2012. The setbacks for infiltration sites originally permitted or modified from September 1, 2006 to August 31, 2018 are as follows (all distances in feet): i. Each habitable residence or place of assembly under separate ownership: 400 ' ii. Each habitable residence or place of assembly owned by the Permittee: 200 In. Each private or public water supply source: 100 iv. Surface waters: 50 4 v. Groundwater lowering ditches: 50 4 vi. Surface water diversions: 50 vii. Each well with exception of monitoring wells: 100 viii. Each property line: 200 2, 33 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: 50 4 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 ground water supply (less than 50 feet deep): 500 ' Habitable residences or places of assembly under separate ownership constructed after the facilities herein were originally permitted or subsequently modified 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 Per a setback waiver recorded in the Onslow County Register of Deeds, reduced setbacks from the wetted area to any property line are as follows: Parcel No. Deed Book / Page Setback Easement 448100404561 4742 / 479 50 feet 150 feet 4 Setbacks to non -SA surface waters, groundwater lowering ditches, and subsurface groundwater lowering drainage systems have been reduced from 200 to 50 feet, and setbacks to SA surface waters have been reduced from 200 to 100 feet because the treatment units are designed to meet a Total Nitrogen of 4 mg/L and a Total Phosphorus of 2 mg/L. [15A NCAC 02T .0706(a), 02T .0706(c), 02T .0706(e), 02T .0706(f), 02T .0706(g)] WQ0035809 Version 2.0 Shell Version 200201 Page 5 of 13 b. The storage and treatment units were modified March 1, 2017. The setbacks for storage and treatment units originally permitted or modified from September 1, 2006 to August 31, 2018 are as follows (all distances in feet): I. Each habitable residence or place of assembly under separate ownership: 1001 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 ' Habitable residences or places of assembly under separate ownership constructed after the facilities herein were originally permitted or subsequently modified 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 02H .0404(g), 02T .0706(d), 02T .0706(f), 02T .0706(g)] III. OPERATION AND MAINTENANCE REQUIREMENTS 1. The Permittee shall operate and maintain the subject facilities as anon -discharge system. [15A NCAC 02T .0700] 2. The Permittee shall maintain an Operation and Maintenance Plan, which shall include operational functions, maintenance schedules, safety measures, and a spill response plan. [15A NCAC 02T .0707(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 their back-up shall operate and visit the facilities as required by the WPCSOCC. [15A NCAC 02T .0117] 4. Infiltration equipment shall be tested and calibrated once per permit cycle. [15A NCAC 02T .0707(d)] 5. Only treated effluent from the Stateside WWTP shall be infiltrated on the sites listed in Attachment B. [15A NCAC 02T .0701] 6. The Permittee shall not allow vehicles or heavy machinery on the infiltration area, except during equipment installation or maintenance activities. [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 or utilize generated residuals in a Division -approved manner. [15A NCAC 02T .0708, 02T .I 100]. 9. The Permittee shall not divert or bypass untreated or partially treated wastewater from the subject facilities. [15A NCAC 02T .0705(i)] 10. Freeboard in the five high -rate infiltration basins shall not be less than two feet at any time. [15A NCAC 02T .0705(c)] WQ0035809 Version 2.0 Shell Version 200201 Page 6 of 13 11. Gauges to monitor waste levels in the five high -rate infiltration basins shall be provided. These gauges shall have readily visible permanent markings, at inch or tenth of a foot increments, indicating the following elevations: maximum liquid level at the top of the temporary liquid storage volume; minimum liquid level at the bottom of the temporary liquid storage volume; and the lowest point on top of the dam. [15A NCAC 02T .0707(f)] 12. A protective vegetative cover shall be established and maintained on all berms, pipe runs, erosion control areas, surface water diversions, and earthen embankments (i.e., outside toe of embankment to maximum allowable temporary storage elevation on the inside of the embankment). Trees, shrubs, and other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen embankments shall be kept mowed or otherwise controlled and accessible. [15A NCAC 02T .0707(g)] 13. Metering equipment shall be tested and calibrated annually. [15A NCAC 02T .0707(d)] 14. An automatically activated standby power source capable of powering all essential treatment units shall be on site and operational at all times. If a generator is employed as an alternate power supply, it shall be tested weekly by interrupting the primary power source. [15A NCAC 02T .0705(k)] 15. The infiltration areas shall be cleaned at least once per permit cycle to remove deposited materials that may impede the infiltration process. Cleaning records shall be maintained at the facility for five years, and shall be made available to the Division upon request. The Wilmington Regional Office, telephone number (910) 796-7215, shall be notified prior to each cleaning. [15A NCAC 02T .0707(h)] 16. The Permittee shall expand the rip rap beds at the terminus of the drains or take other mitigating actions when deemed necessary by Division staff upon the witness of sediment travel away from rip rap material or degradation of the wetland. [15A NCAC 02T .0 1 08(b)(1)(A)] IV. MONITORING AND REPORTING REQUIREMENTS 1. The Permittee shall conduct and report any Division required monitoring necessary to evaluate this facility's impact on groundwater and surface water. [15A NCAC 02T .0108(c)] 2. A Division -certified laboratory shall conduct all analyses for the required effluent, groundwater, and surface water parameters. [15A NCAC 02H .0800] 3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be reported on Form NDMR. Facilities with a permitted flow less than 10,000 GPD may estimate their flow from water usage records provided the water source is metered. [15A NCAC 02T .0105(k), 02T .0108(c)] 4. The Permittee shall monitor the treated effluent at the frequencies and locations for the parameters specified in Attachment A. [15A NCAC 02T .0108(c)] 5. The Permittee shall maintain records tracking the amount of effluent infiltrated. These records shall include the following information for each infiltration site listed in Attachment B: a. Date of infiltration; b. Volume of effluent infiltrated; c. Site infiltrated; d. Length of time site is infiltrated; e. Loading rates to each infiltration site listed in Attachment B; and f. Weather conditions. [15A NCAC 02T .0108(c)] WQ0035809 Version 2.0 Shell Version 200201 Page 7 of 13 6. Freeboard (i.e., waste level to the lowest embankment elevation) in the five high -rate infiltration basins shall be measured to the nearest inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall be maintained for five years, and shall be made available to the Division upon request. [15A NCAC 02T .0108(c)] 7. Three copies of all monitoring data (as specified in Conditions IV.3. and IVA.) on Form NDMR for each PPI and three copies of all operation and disposal records (as specified in Conditions IV.5. and IV.6.) on Form NDAR-2 for every site in Attachment B shall be submitted on or before the last day of the following month. If no activities occurred during the monitoring month, monitoring reports are still required documenting the absence of the activity. All information shall be submitted to the following address: Division of Water Resources Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [15A NCAC 02T .0105(1)] 8. The Permittee shall maintain a record of all residuals removed from this facility. This record shall be maintained for five years, and shall be made available to the Division upon request. This record shall include: a. Name of the residuals hauler; b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality agreeing to accept the residuals; c. Date the residuals were hauled; and d. Volume of residuals removed. [15A NCAC 02T .0708(b)] 9. A maintenance log shall be kept at this facility. This log shall be maintained for five years, and shall be made available to the Division upon request. This log shall include: a. Date of flow measurement device calibration; b. Date of infiltration equipment calibration; c. Date and results of power interruption testing on alternate power supply; d. Visual observations of the plant and plant site; and e. Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections and cleanings, etc.). [15A NCAC 02T .0707(i)] 10. Monitoring wells MW-1, MW-2, and MW-3 shall be sampled after construction, and within three months prior to initiating high -rate infiltration operations. Monitoring wells MW-1, MW-2, and MW- 3 shall be sampled thereafter at the frequencies and for the parameters specified in Attachment C. All mapping, well construction forms, well abandonment forms, and monitoring data shall refer to the permit number and the well nomenclature as provided in Attachment C and Figure 1. [15A NCAC 02T .0105(m)] 11. Monitoring wells MW-4, MW-5, and MW-6 shall be sampled at the frequencies and for the parameters specified in Attachment C. All mapping, well construction forms, well abandonment forms and monitoring data shall refer to the permit number and the well nomenclature as provided in Attachment C and Figure 1. [15A NCAC 02T .0105(m)] WQ0035809 Version 2.0 Shell Version 200201 Page 8 of 13 12. For initial sampling of monitoring wells MW-I, MW-2, and MW-3, the Permittee shall submit a Compliance Monitoring Form (GW-59) and a Well Construction Record Form (GW-1) listing this permit number and the appropriate monitoring well identification number. Initial Compliance Monitoring Forms (GW-59) without copies of the Well Construction Record Forms (GW-1) are deemed incomplete, and may be returned to the Permittee without being processed. [15A NCAC 02T .0105(m)] 13. Two copies of the monitoring well sampling and analysis results shall be submitted on a Compliance Monitoring Form (GW-59), along with attached copies of laboratory analyses, on or before the last working day of the month following the sampling month. The Compliance Monitoring Form (GW-59) shall include this permit number, the appropriate well identification number, and one GW-59a certification form shall be submitted with each set of sampling results. All information shall be submitted to the following address: Division of Water Resources Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 [15A NCAC 02T .0105(m)] 14. 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, etc.) rendering 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 telephone number (800) 662-7956, (800) 858-0368, or (919) 733-3300. 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)] WQ0035809 Version 2.0 Shell Version 200201 Page 9 of 13 V. INSPECTIONS 1. The Permittee shall perform inspections and maintenance to ensure proper operation of the wastewater treatment and infiltration facilities. [15A NCAC 02T .07070)] 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 a period of five years from the date of the inspection, and this log shall be made available to the Division upon request. [15A NCAC 02T .0707(1), 02T .07070)] Division authorized representatives may, upon presentation of credentials, enter and inspect any property, premises, or place related to the wastewater treatment and infiltration facilities permitted herein 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 groundwater, surface water, or leachate samples. [G.S. 143-215.3(a)(2)] VI. GENERAL CONDITIONS 1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to a Division enforcement action. [G.S. 143-215.6A, 143-215.613, 143-215.6C] 2. This permit is effective only with respect to the nature and volume of wastes described in the permit application, and Division -approved plans and specifications. [G.S. 143-215.1(d)] 3. Unless specifically requested and approved in this permit, there are no variances to administrative codes or general statutes governing the construction or operation of the facilities permitted herein. [15A NCAC 02T .0105(n)] 4. The issuance of 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 .0105(c)(6)] 5. If the permitted facilities change ownership, or the Pennittee changes their name, the Permittee shall submit a permit modification request on Division -approved forms. The Permittee shall comply with all terms and conditions of this permit until the permit is transferred to the successor -owner. [G.S. 143- 215.1(d3)] 6. The Permittee shall retain a set of Division -approved plans and specifications for the life of the facilities permitted herein. [15A NCAC 02T .0105(o)] 7. The Permittee shall maintain this permit until the proper closure of all facilities permitted herein, or until the facilities permitted herein are permitted by another authority. [15A NCAC 02T .01050)] WQ0035809 Version 2.0 Shell Version 200201 Page 10 of 13 8. 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 Administrative Code Title 15A Subchapter 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 any records are required to be kept; ii. to have access to any permit required documents and records; iii. to inspect any monitoring equipment or method as required in this permit; or iv. to sample any pollutants; d. the Permittee's failure to pay the annual fee for administering and compliance monitoring; or e. a Division determination that the conditions of this permit are in conflict with North Carolina Administrative Code or General Statutes. [15A NCAC 02T .0110] 9. Unless the Division Director grants a variance, expansion of the facilities permitted herein 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. 143-215.613, or under Federal law that would otherwise be prosecuted under G.S. 143-215.613, and all appeals of this conviction have been abandoned or exhausted. 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. c. The Permittee or any parent, subsidiary, or other affiliate of the Permittee has not paid a civil penalty, and all appeals of this penalty have been abandoned or exhausted. 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. [15A NCAC 02T .0120(b), 02T .0120(d)] 10. This permit shall not be renewed if the Permittee or any affiliation has not paid the required annual fee. [15A NCAC 02T .0120(c)] 11. Pursuant to the flow reduction request received April 4, 2022 and June 1, 2022, and approved July 22, 2022, the Division accepts the data -based design flow rate of 65 gallons per day per bedroom (GPDBDR) with a minimum of 130 GPD for 1- and 2- bedroom dwellings for the users served by this facility. At no time shall wastewater flows exceed the limits defined in this permit, or exceed the sewer capacity downstream of any new sewer extension or service connection. Note that this flow reduction shall not apply to sewer extension applications and/or permits for any other public or private organizations whose wastewater flows are or might become tributary to this permit. The Permittee shall report the measured monthly average amount of wastewater flow contributed per unit (GPDBDR) for the 12 months prior to permit renewal. If any of these monthly averages are within 20% of the approved value, the Permittee shall reevaluate the approved value using the methodology applied to determine the approved flow rate of 65 GPD/BDR, and submit this information with the renewal application for reevaluation of the approve flow rate. [15A NCAC 02T .0114(f)] WQ0035809 Version 2.0 Shell Version 200201 Page 11 of 13 12. The Permittee shall retain the Division's written approval of the authorized adjusted daily design flow rate for the life of this facility, and shall transfer this approval to any future Permittee. [15A NCAC 02T .0114(f)] Permit issued this the 30t" day of January 2023 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DocuSigned by: Na{� auna�,l 'I�,avin. Wo D1043082680C483... Richard E. Rogers, Jr., Director Division of Water Resources By Authority of the Environmental Management Commission Permit Number WQ0035809 WQ0035809 Version 2.0 Shell Version 200201 Page 12 of 13 Permit No. WQ0035809 High -Rate Infiltration System Old North State Water Company, LLC January 30, 2023 Statewide WWTP Onslow County ENGINEERING CERTIFICATION ❑ Partial ❑ Final I, , as a duly licensed North Carolina Professional Engineer, having ❑ periodically / ❑ fully observed the construction of the permitted facilities, do hereby state to the best of my abilities that the facility was constructed in compliance with G.S. 143-215.1, Administrative Code Title 15A Subchapter 02T, this permit, and the Division -approved plans and specifications. Documentation of any variation to this permit, and the Division -approved plans and specifications, is in the attached as -built drawings. Description of variations: Professional Engineer's Name Firm Name Firm No. Address City JL State Zip Code Telephone Email Seal, Signature, and Date THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING DOCUMENTATION, SHALL BE SENT TO THE FOLLOWING ADDRESS: NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES NON -DISCHARGE BRANCH By U.S. Postal Service By Courier/Special DelivM 1617 MAIL SERVICE CENTER 512 N. SALISBURY ST. RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604 WQ0035809 Version 2.0 Shell Version 200201 Page 13 of 13 THIS PAGE BLANK I H O O O O O O O O O O r�7 d z y C u u o u u o o O O O o u o u o 41 A 41 �1 u 0 0 u � w w � O y � O y E E E O z O � V1 � Q1 z O c�a oN o Vi u u u w z z z z a CA CA w w a F-� F-i C7 C7 C7 � C7 C7 C7 C7 C7 C7 d Fy M M N U N N N N N M 7 A A 7 A ��I �l u � w w p N vi y E E f-J QI U o a°i U � z o c z 00 �-yy E tj _ _ d '� p d Ect w u u u w z z z sm. a CA w p o o 0 0 0 0 o OC U a F-� .u. 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