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HomeMy WebLinkAboutWQ0028666_Final Permit_20140716AN,AM+. NCDENR North Carolina Department of Environment and Natural Resources Pat McCrory Governor July 16, 2014 THOMAS J. ROBERTS — PRESIDENT AQUA NORTH CAROLINA, INC. 202 MACKENAN COURT CARY, NORTH CAROLINA 27511-6447 Dear Mr. Roberts: John E. Sbarla, III Secretary Subject: Permit No. WQ0028666 Cannonsgate at Bogue Sound High -Rate Infiltration System Carteret County In accordance with your permit major modification request received April 1, 2014, and subsequent additional information received May 29, 2014, we are forwarding herewith Permit No. WQ0028666 dated July 16, 2014, to Aqua North Carolina, Inc. for the construction and operation of the newly permitted facilities, as well as the continued operation of the existing wastewater treatment and high -rate infiltration facilities_ The modifications to the subject permit are as follows: the construction and operation of approximately 412 linear feet (LF) of 4-inch force main connecting the flow equalization basin with the force main permitted under WQ0037078; the construction only of two 138 gallon per minute (GPM) pumps in the effluent pump station to convey treated effluent from Cannonsgate at Bogue Sound to Bogue Watch (Permit No. WQ0029821) via approximately 173 LF of 4-inch onsite force main and approximately 4,839 LF of 4-inch ductile iron pipe from the Cannonsgate at Bogue Sound property line to the Bogue Watch WWTF property line. This permit shall be effective from the date of issuance until May 31, 2019, shall void Permit No. WQ0028666 issued February 27, 2014, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements listed in Attachments A, B and C for they may differ from the previous permit issuance. Failure to establish an adequate system for collecting and maintaining the required operational information shall result in future compliance problems. For your convenience, customized electronic copies of your facility's NDMR and NDAR-2 reporting forms are available for download at: http://portaLncdenr.orglweb/wqlaps/tau/reporting_ 1636 Mail Service Center, Raleigh, North Carolina 276994636 Phone: 9IM07-64641 Intemet: htto:tlportal.nodenr.orulwebtwu An Equal 6pportu-lily 1 Affirmative Action Employer— Made in pxt with recycled paper Mr. Thomas J. Roberts July I6, 2014 Page 2 of 2 Please note the following permit conditions are new since the last permit issuance dated February 27, 2014: v Condition 1.1. — This condition allows Cannonsgate at Bogue Sound to accept 80,000 GPD from Bogue Watch WWTF based on a monthly average. ➢ Condition I.2. — This condition requires that the Permittee submit an Engineering Certification upon completion of construction and prior to operation of the modified permitted facilities. ➢ Condition 13. — This condition requires that the Permittee notify the Wilmington Regional Office prior to operation of the modified facilities so an inspection can be made. ➢ Condition 11.1 l.c. —This condition requires that the effluent force main from Cannonsgate at Bogue Sound to Bogue Watch W WTF meet the listed setbacks. 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 1 SOB of the North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding. One set of approved plans and specifications is being forwarded to you. If you need additional information concerning this permit, please contact Nathaniel Thornburg at (919) 807-6453 or nathaniel.thornburg@ncdenr.gflv. Sincerely, A� / Thomas A. Reeder, Director Division of Water Resources cc: Carteret County Health Department (Electronic Copy) Wilmington Regional Office, Water Quality Regional Operations Section Scott Smart — Aqua North Carolina, Inc. (Electronic Copy) Beth Buffington — Protection and Enforcement Branch (Electronic Copy) Central Files Digital Permit Archive (Electronic Copy) NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES 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 Aqua North Carolina, Inc. Carteret County FOR THE operation of a 200,000 gallon per day (GPD) wastewater treatment and high -rate infiltration facility consisting of. construction and operation of approximately 412 linear feet (LF) of 4-inch force main from the property line where the force main connects to the conveyance line (Permit No. WQ0037078) from the Bogue Watch WWTF to the Cannonsgate at Bogue Sound flow equalization basin; and all associated piping, valves, controls and appurtenances; the construction only of two 138 gallon per minute (GPM) pumps in the effluent pump station to convey treated effluent from Cannonsgate at Bogue Sound to Bogue Watch (Permit No. WQ0029821); approximately 173 LF of 4-inch force main from the effluent pump station to the property line where the force main connects to the dry conveyance line permitted herein from Cannonsgate at Bogue Sound to Bogue Watch; and all associated piping, valves, controls and appurtenances; the construction only of: approximately 4,839 LF of 4-inch ductile iron pipe from the Cannonsgate at Bogue Sound property line to the Bogue Watch WWTF property line, and all associated piping, valves and appurtenances; the continued operation of a mechanically cleaned fine screen; a 73,580 gallon flow equalization basin with three 140 gallon per minute (GPM) variable frequency drive pumps, two 300 cubic feet per minute (CFM) 7.5 horsepower (hp) blowers, one 3 hp submersible mixer, and a coarse bubble diffuser system; a flow splitter box; two 2 millimeter (mm) drum screens; two 44,000 gallon Membrane Bio-Reactor (MBR) basins each consisting of: a 13,000 gallon anoxic basin with a 174 GPM anoxic recirculation pump and flow meter; a 27,000 gallon fine bubble aeration basin; a 4,000 gallon membrane tank with a 140 GPM membrane feed pump, a 100 GPM wasting pump and flow meter, and two racks of 36 microfiltration modules each at a loading rate of 15 gallons per day per square foot (GPD/112); three 313 CFM 9.5 hp blowers serving both trains of aeration and membrane tanks; two 69,000 gallon aerobic sludge digesters with two 430 GPM sludge pumps, two submersible 4 hp mixers, three 300 CFM 20 hp blowers and a coarse bubble diffuser system; dual ultraviolet (UV) disinfection chambers in parallel; a permanent standby generator; an odor control facility; a turbidimeter; an upset flow meter; a reclaimed water flow meter•, a 4,450 gallon pump station with two 200 GPM pumps and audible/visual high water alarms; a 1,000,000 gallon synthetically lined five day upset pond; and all associated piping, valves, controls and appurtenances; and the WQ0028666 Version 2.1 Shell Version 140707 Page I of 10 continued operation of a 1,700,000 gallon high -rate infiltration basin (# 1) with a 72,309 square foot (ft2) footprint and a 1.145 GPD/ftx loading rate; a 760,000 gallon high -rate infiltration basin (42) with a 29,185 ft2 footprint and a 1.145 GPD/ft2 loadinf rate; a 1,385,000 gallon high -rate infiltration basin (0) with a 57,500 ft2 footprint and a 1.145 GPD/ft loading rate; a 5700,000 gallon high -rate infiltration basin (#4) with a 15,682 ft2 footprint and a 1.145 GPD/ft2 loading rate; a groundwater control pump station with two 350 GPM pumps, audible/visual alarms and a flow meter; a spray irrigation system to dispose of the groundwater lowering discharge effluent; and all associated piping, valves, controls and appurtenances to serve 525 lots containing 1,640 bedrooms, a Marina, a Clubhouse and Pool House at Cannonsgate at Bogue Sound, as well as up to 80,000 GPD from Bogue Watch WWTF (Permit No. WQ0029821), with no discharge of wastes to surface waters, pursuant to the application received April 1, 2014, and subsequent additional information received by the Division of Water Resources, and in conformity with the project plans, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until May 31, 2019, shall void Permit No. WQ0028666 issued February 27, 2014, and shall be subject to the following specified conditions and limitations: 1. SCHEDULES 1. Upon completion of the force main permitted under Permit No. WQ0037078, the Permittee may accept a monthly average of 80,000 gallons per day (GPD) of raw wastewater influent from the Bogue Watch WWTF flow equalization basin to the Cannonsgate at Bogue Sound WWTP (Permit No. WQ0028666) flow equalization basin for subsequent treatment and disposal. 2. In accordance with 15A NCAC 02T .0116, upon completion of construction and prior to operation of the modified facilities, a certification (attached) shall be submitted from a licensed North Carolina Professional Engineer certifying that the modified facilities have been installed in accordance with this permit, Division approved plans and specifications, and other supporting documentation, including the location of all monitoring wells as applicable. If this project is to be completed in phases and partially certified, the Permittee shall retain the responsibility to track further construction approved under the same permit, and shall provide a final certificate of completion once the entire project has been completed. Mail the Certification to the Division of Water Resources, Water Quality Permitting Section, 1636 Mail Service Center, Raleigh, NC 27699-1636, 3. The Wilmington Regional Office, telephone number (910) 796-7215, shall be notified at least 48 hours in advance (excluding weekends and holidays) of operation of the installed facilities such that an in -place inspection can be made. Notification to the regional supervisor shall be made from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 4. Upon cessation of the wastewater pump and haul permit (Permit No. WQ0036795) to convey Cannonsgate at Bogue Sound WWTP influent to the Sterling Farms WWTP (Permit No. WQ0029475) for treatment and disposal, the Permittee shall notify the Wilmington Regional Office, telephone number (910) 796-7215, of the Permittee's intent to operate the facilities permitted herein. Notification to the regional supervisor shall be made from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. No later than six months prior to the expiration of this permit, the Permittee shall request renewal of this permit on official Division forms. Upon receipt of the request, the Division will review the adequacy of the facilities described therein, and if warranted, will renew the permit for such period of time and under such conditions and limitations as it may deem appropriate. Please note Rule 15A NCAC 02T .0105(d) requires an updated site map to be submitted with the permit renewal application. WQ0028666 Version 2.1 Shell Version 140707 Page 2 of 10 6. In accordance with 15A NCAC. 02H .0404(e), if the subject wastewater treatment or infiltration facilities are in noncompliance with the terms and conditions of this permit, governing statutes or regulations, the subject facilities shall be connected to an operational publicly owned wastewater collection system within 180 days of its availability. Prior to the initiation of these connection activities, appropriate Division approval shall be received. H. PERFORMANCE STANDARDS The subject non -discharge facilities shall be effectively maintained and operated at all times so there is no discharge to surface waters, nor any contravention of groundwater or surface water standards. In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions due to improper operation and maintenance, or failure of the infiltration areas to adequately assimilate the effluent, the Permittee shall take immediate corrective actions including Division required actions, such as the construction of additional or replacement wastewater treatment or infiltration facilities. 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. 3. All wells constructed for purposes of groundwater monitoring shall be constructed in accordance with 15A NCAC 02C .0108 (Standards of Construction for Wells Other than Water Supply), and any other jurisdictional laws and regulations pertaining to well construction. 4. Effluent quality shall not exceed the limitations specified in Attachment A. S. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in Attachment B. 6. A usable green area shall be maintained for effluent disposal. The green area shall have the capability of accommodating the facility's average daily flow without exceeding the green area loading rates. As defined in 15A NCAC 02H .0404(g)(7), a "green area" is an area suitable for waste disposal, either in its natural state or which has been modified by planting a vegetative cover of grasses or low growing shrubbery. 7. The compliance and review boundaries are established at the property boundary. Any exceedance of standards at the compliance or review boundary shall require action in accordance with 15A NCAC 02L .0106. 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. 9. In accordance with 15A NCAC 02L .0107(d), no wells, excluding Division approved monitoring wells, shall be constructed within the compliance boundary except as provided for in 15A NCAC 02L .0107(g). 10. Except as provided for in 15A NCAC 02L .0107(g), the Permittee shall ensure any landowner who is not the Permittee and owns Iand within the compliance boundary shall execute and file with the Carteret County Register of Deeds an easement running with the Iand containing the following items: a. A notice of the permit and number or other description as allowed in 15A NCAC 02L A 107(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_ WQ0028666 Version 2.1 Shell Version 140707 Page 3 of 10 11. The facilities permitted herein shall be constructed according to the following setbacks: a. The setbacks for high -rate infiltration sites permitted under 15A NCAC 02H .0219(k) shall be as follows (all distances in feet): i. Surface waters not classified SA: ii. Surface waters classified SA: iii. Any well with exception of monitoring wells: 25 100 100 b. The setbacks for storage and treatment units permitted under 15A NCAC 02H .0200 shall be as follows (all distances in feet): i. Any well with exception of monitoring wells: ii. Any property line: 100 50 c. The separation distances for the effluent force main from Cannonsgate at Bogue Sound to the Bogue Watch WWTF (Permit No. WQ0029821) permitted herein shall be as follows (distances as specified): i. Any potable water line (horizontal): loft ii. Any potable water line (vertical — below potable water): 18 in iii. Any well with exception of monitoring wells: 100 ft iv. Any sewer line (horizontal): 2 ft v. Any sewer line (vertical — over sewer): 18 in E In any instance where the above separation distances cannot be met, the piping and integrity testing procedures shall meet water main standards in accordance with 15A NCAC 18C, but in no case shall the line be less than 25 feet from a private well or 50 feet from a public well. M. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater resulting from the operation of this facility. The Permittee shall maintain an Operation and Maintenance Plan pursuant to 15A NCAC 02T .0707, which at a minimum shall include operational functions, maintenance schedules, safety measures and a spill response plan. 2_ Upon the Water Pollution Control System Operators Certification Commission's (WPCSOCC) classification of the subject non -discharge facilities, in accordance with 15A NCAC 08G .0200 the Permittee shall designate and employ a certified operator in responsible charge (ORC) and one or more certified operator(s) as back-up ORC(s). The ORC or their back-up shall visit the facilities in accordance with 15A NCAC 08G .0200, and shall comply with all other conditions specified in the previously cited rules. 3. Only effluent from Cannonsgate at Bogue Sound and 80,000 GPD from Bogue Watch WWTF (Permit No. WQ0029821) shall be infiltrated on the sites listed in Attachment B. 4. 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. 5. No automobiles or machinery shall be allowed on the infiltration sites except during equipment installation or while maintenance is being performed. 6. Public access to the infiltration sites, wastewater treatment facilities and 5-day upset pond shall be prohibited. WQ0028666 Version 2.1 Shell Version 140707 Page 4 of 10 7. The residuals generated from the wastewater treatment facilities shall be disposed or utilized in accordance with 15A NCAC 02T .1100. The Permittee shall maintain a residual management plan pursuant to 15A NCAC 02T .0708. 8. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is prohibited. 9. Freeboard in the four high -rate infiltration basins and the five day upset pond shall not be less than two feet at any time. 10. Gauges to monitor waste levels in the four high -rate infiltration basins and the five day upset pond shall be provided. These gauges shal I 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. 11. A protective vegetative cover shall be established and maintained on all earthen embankments (i.e., outside toe of embankment to maximum allowable temporary storage elevation on the inside of the embankment), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow on the earthen dikes or embankments. Earthen embankment areas shall be kept mowed or otherwise controlled and accessible_ 12. All effluent shall be routed to the five day upset pond should the Iimit for fecal coliform (e.g., daily maximum concentration of 25 colonies per 100 mL) or turbidity (e.g., instantaneous maximum of 10 NTU) be exceeded, until the problems associated with the wastewater treatment plant have been corrected. The wastewater in the five day upset pond shall be pumped back to the treatment plant headworks for re -treatment or treated in the five day upset pond prior to infiltration. 13. The infiltration basins shall be periodically swept to remove deposited materials that may impede the infiltration process. Cleaning records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. The Wilmington Regional Office, telephone number (910) 796-7215, shall be notified prior to each cleaning. 14. Adequate measures shall be taken to divert stormwater from the infiltration sites listed in Attachment B. 15. The groundwater lowering system effluent irrigation area shall have a suitable year round vegetative cover, which shall be maintained at all times such that crop health is optimized, allows for even distribution of groundwater effluent, allows inspection of the irrigation system, and minimizes sediment runoff. WQ0028666 Version 2.1 Shell Version 140707 Page 5 of I0 IV. MONITORING AND REPORTING REOUIREMENTS 1. Any Division required monitoring (including groundwater, plant tissue, soil and surface water analyses) necessary to ensure groundwater and surface water protection shall be established, and an acceptable sampling reporting schedule shall be followed. 2. Per 15A NCAC 02H .0800, a Division certified laboratory shall conduct all laboratory analyses for the required effluent, groundwater or surface water parameters. 3. Flow through the treatment facility shall be continuously monitored, and daily flow values shall be reported on Form NDMR. The Permittee shall install and maintain an appropriate flow measurement device to ensure the accuracy and reliability of flow measurement consistent with accepted engineering and scientific practices. Selected flow measurement devices shall be capable of measuring flows with a maximum deviation of less than ten percent from true flow; accurately calibrated at a minimum of once per year; and maintained to ensure the accuracy of measurements is consistent with the selected device's accepted capability. The Permittee shall maintain records of flow measurement device calibration on file for a period of at least five years. At a minimum, documentation shall include: a. Date of flow measurement device calibration, b. Name of person performing calibration, and c. Percent from true flow. 4. The Permittee shall monitor the effluent from the subject facilities at the frequencies and locations for the parameters specified in Attachment A. 5. The Permittee shall maintain adequate records tracking the amount of effluent infiltrated. At a minimum, these records shall include the following information for each infiltration site listed in Attachment B: a. Date of infiltration/irrigation; b. VoIume of effluent infiltrated/irrigated; c. Site infiltrated d. Loading rates to each infiltration site listed in Attachment B; and e. Weather conditions. 6. Freeboard (i_e., waste level to the lowest embankment elevation) in the four high -rate infiltration basins and the five day upset pond shall be measured to the nearest inch or tenth of a foot, and recorded weekly. Weekly freeboard records shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. 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 WQ0028666 Version 2.1 Shell Version 140707 Page 6 of 10 8. A record shall be maintained of all residuals removed from this facility. This record shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request_ At a minimum, this record shall include: a. Name of the residuals hauler; b. Non -Discharge permit number authorizing the residuals disposal, or a letter from a municipality agreeing to accept the residuals; c. Date the residuals were hauled; and d. Volume of residuals removed. 9. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, this Iog shall include: a. Date and results of power interruption testing on alternate power supply; b. Date of calibration of flow measurement device; c. Visual observations of the plant and plant site; and d_ Record of preventative maintenance (e.g., changing of equipment, adjustments, testing, inspections and cleanings, etc.). I0. Monitoring wells shall be sampled after construction and within 3 months prior to initiating non - discharge disposal operations. Monitoring wells 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. 11. For initial sampling of monitoring wells, the Permittee shall submit a Compliance Monitoring Form (GW-59) and a Well Construction Record Form (GW-1) listing this permit number and the appropriate monitoring well identification number. Initial Compliance Monitoring Forms (GW-59) without copies of the Well Construction Record Forms (GW-1) are deemed incomplete, and may be returned to the Permittee without being processed. 12. 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 WQ0028666 Version 2.1 Shell Version 140707 Page 7 of 10 13. Noncompliance Notification: The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910) 796-7215, as soon as possible , but in no case more than 24 hours, or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the facility resulting in the treatment of significant amounts of wastes that is abnormal in quantity or characteristic, including the known passage of a hazardous substance. b. Any process unit failure (e.g., mechanical, electrical, etc.), due to known or unknown reasons, rendering the facility incapable of adequate wastewater treatment. c. Any facility failure resulting in a by-pass directly to receiving surface waters. d. Any time self -monitoring indicates the facility has gone out of compliance with its permit limitations. e. Effluent breakout from the infiltration basin(s)- Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733-3300. Persons reporting such occurrences by telephone shall also file a written report in letter form within five days following first knowledge of the occurrence. This report shall outline the actions taken or proposed to be taken to ensure the problem does not recur. V. INSPECTIONS 1. The Permittee shall provide adequate inspection and maintenance to ensure proper operation of the wastewater treatment and infiltration facilities. 2. The Permittee or their designee shall inspect the wastewater treatment and infiltration facilities to prevent malfunctions, facility deterioration and operator errors resulting in discharges, which may cause the release of wastes to the environment, a threat to human health or a public nuisance. The Permittee shall maintain an inspection log that includes, at a minimum, the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken. The Permittee shall maintain this inspection log for a period of five years from the date of the inspection, and this log shall be made available to the Division upon request. 3. Any duly authorized Division representative may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the wastewater treatment and infiltration facilities permitted herein at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records required to be maintained under the terms and conditions of this permit, and may collect groundwater, surface water or leachate samples. VI. GENERAL, CONDITIONS 1. Failure to comply with the conditions and limitations contained herein may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statutes 143- 215.6A to 143-215.6C. 2. This permit shall become voidable if the permitted facilities are not constructed in accordance with the conditions of this permit, the Division approved plans and specifications, and other supporting documentation. WQ0028666 Version 2.1 Shell Version 140707 Page 8 of 10 3. This permit is effective only with respect to the nature and volume of wastes described in the permit application, Division approved plans and specifications, and other supporting documentation. No variances to applicable rules governing the construction or operation of the permitted facilities are granted, unless specifically requested and approved in this permit pursuant to 15A NCAC 02T .0105(n). 4. The issuance of this permit does not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other jurisdictional government agencies (e.g., local, state, and federal). Of particular concern to the Division are applicable river buffer rules in 15A NCAC 02B .0200; erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under the Division's General Permit NCGO I0000; any requirements pertaining to wetlands under 15A NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 2) Part 6 of Chapter 143 of the General Statutes. 5. In the event the permitted facilities change ownership or the Permittee changes their name, a formal permit modification request shall be submitted to the Division. This request shall be made on official Division forms, and shall include appropriate property ownership documentation and other supporting documentation as necessary. The Permittee of record shall remain fully responsible for maintaining and operating the facilities permitted herein until a permit is issued to the new owner. 6. The Permittee shall retain a set of Division approved plans and specifications for the life of the facilities permitted herein. 7. The Permittee shall maintain this permit until all permitted facilities herein are properly closed or permitted under another permit issued by the appropriate permitting authority pursuant to 15A NCAC 02T .01050). 8. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division Director, in whole or part for the requirements listed in 15A NCAC 02T A 110. 9. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0I20(b). 10. The Permittee shall pay the annual fee within 30 days after being billed by the Division_ Failure to pay the annual fee accordingly shall be cause for the Division to revoke this permit pursuant to 15A NCAC 02T .0105(e)(3)_ Permit issued this the W' day of July 2014 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION /� ,*I _,,- AomasdrReeder, Director Division of Water Resources By Authority of the Environmental Management Commission Permit Number WQ0028666 WQ0028666 Version 2.1 Shell Version 140707 Pa`e 9 of 10 Permit No. WQ0028666 Aqua North Carolina, Inc. Cannonsgate at Bogue Sound ENGINEERING CERTIFICATION ❑ Partial ❑ Final High -Rate Infiltration System July 16, 2014 Carteret County In accordance with 15A NCAC 02T .0116, k as a duly registered Professional Engineer in the State of North Carolina, having the Permittee's authorization to ❑ periodically ❑ weekly ❑ fully observe the construction of the permitted facility, hereby state to the best of my abilities that due care and diligence was used in the observation of the construction, such that the facility was built within substantial compliance and intent of this permit, the Division approved plans and specifications, and other supporting documentation. ❑ Any variation to this permit, the Division approved plans and specifications, and other supporting documentation has been documented in the attached as -built drawings, and shall serve as the Pernzittee's minor modification request to amend the permit accordingly. Provide a brief narrative description of any variations: Professional Engineer's Name Engineering Firm Mailing Address City State Zip Telephone E-mail NC PE Seal, Signature & Date THE COMPLETED ENGINEERING CERTIFICATION, INCLUDING ALL SUPPORTING INFORMATION AND MATERIALS, SHALL BE SENT TO THE FOLLOWING ADDRESS: NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER RESOURCES WATER QUALITY PERMITTING SECTION NON -DISCHARGE PERMITTING UNIT By U.S_ Postal Service: 1636 MAIL SERVICE CENTER By Courier/Special Delivery: 512 N. SALISBURY ST. RALEIGH, NORTH CAROLINA 27699-1636 RALEIGH, NORTH CAROLINA 27604 WQ0028666 Version 2.1 Shell Version 140707 Page 10 of 10 ATTACHMENT A — LIMITATIONS AND MONITORING REQUIREMENTS PPI 001— WWTP Effluent Permit Number: WQ0028666 Version: 2.1 EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCs Code Parameter Description Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 00310 BOD, 5-Day (20 °C) mg/L 10 15 2 x Month Composite 00940 Chloride (as Cl) mg/L 3 x Year Composite 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 14 25 2 x Month Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 200.000 1 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 1 6 2 x Month Composite 00620 Nitrogen, Nitrate Total (as N) mg/L 2 x Month Composite 00400 pH Su 6 9 5 x Week Grab 70300 Solids, Total Dissolved — 180 °C mg/L 3 x Year t Composite 00530 Solids, Total Suspended mg/L 5 10 2 x Month Composite 00076 Turbidity, HCH Turbidimeter NTU j 10 Continuous Recorder 1. 3 x Year sampling shall be conducted every March, July and November. PPI 002 — Groundwater Lowering 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 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #1100 mL Monthly Grab 50050 Flow, in Conduit or thru Treatment Plant GPD Continuous Recorder 00600 Nitrogen, Total (as N) mg/L I Monthly Grab 00400 p H su Monthly y Grab b WQ0028666 Version 2.1 Attachment A Page 1 of 3 PPI 003 - Surface Water Monitoring Station #1 EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCs Code Parameter Description Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily Maximum Measurement Frequency Sample Type 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 3 x Year Grab 00600 Nitrogen, Total (as N) mg/L 3 x Year Grab 00400 pH su F - 3 x Year Grab 00480 Salinity GPD 3 x Year Grab 1. 3 x Year sampling shall be conducted every March, July and November. PPI 004 - Surface Water Monitoring Station 42 EFFLUENT CHARACTERISTICS EFFLUENT LIMITS MONITORING REQUIREMENTS PCS Code Parameter Description Units of Measure Monthly Average Monthly Geometric Mean Daily Minimum Daily �'taximum Measurement Frequency Sample Type 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 nil 3 x Year Grab 00600 Nitrogen, Total (as N) mg(L 3 x Year Grab 00400 pH su 3 x Year Grab 00480 Salinity GPD 3 x Year Grab 1. 3 x Year sampling shall be conducted every March, July and November. WQ0028666 Version 2.1 Attachment A Page 2 of 3 PPI 005 — Surface Water Monitoring Station 43 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 31616 Coliform, Fecal MF, M-FC Broth, 44.5 "C #1100 mL 3 x Year Grab 00600 Nitrogen, Total (as N) mgjL 3 x Year' Grab 00400 pH su 3 x Year' Grab 00480 Salinity GPD 3 x Year Grab 3 x Year sampling shall be conducted every March, July and November. WQ0028666 Version 2.1 Attachment A Page 3 of 3 THIS PAGE BLANK ATTACHMENT B - APPROVED LAND APPLICATION SITES AND L=ATIONS Aqua North Carolina, Inc. — Cannonsgate at Bogue Sound Permit Number: WQ0028666 Version: 2.1 INFILTRATION AREA INFORMATION APPLICATION LIMITATIONS Basin Owner County Latitude Longitude Net Acreage Dominant Soil Series Parameter Rate Units 1 Aqua North Carolina; Inc. Carteret 34.711528' -76.987870' 1.66 0 1284 — Non -Discharge Application Rate 1.145 GPD/R2 2 Aqua North Carolina, Inc. Carteret 34,712495° -76.984567' 0.67 01284 — Non -Discharge Application Rate 1.145 GPD/ft 3 Aqua North Carolina, Inc. Carteret 34.712389' -76.983439' 1.32 01294 — Non -Discharge Application Rate 1.145 GPD/ft2 4 Aqua North Carolina, Inc. Carteret 34.7113720 -76.9854370 0.36 0 1284 — Non -Discharge Application Rate 1.145 GPD/ftz Totals 4.01 WQ0028666 Version 2.1 Attachment B Page 1 of 1 THIS PAGE BLANK ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Monitoring wells: MW-I, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7, MW-8 & MW-9 Permit Number: WQ0028666 Version: 2.1 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes 00680 Carbon, Total Organic (TOC) mg/L 3 r Year Grab 1,6 00940 Chloride (as Cl) 250 mg/L 3 x Year Grab 1 31616 Coliform, Fecal MF, M-FC Broth, 44.5 °C #/100 mL 3 x Year Grab 1 00610 Nitrogen, Ammonia Total (as N) 1.5 mg/L 3 x Year Grab 1 00620 Nitrogen, Nitrate Total (as N) 10 mg/L 3 x Year Grab 1 00400 pH 6.5-8.5 su 3 x Year Grab 1.2 70300 Solids, Total Dissolved - 180 °C 500 mg/L 3 x Year Grab I GWVOC Volatile Compounds (GC/MS) Present: Yes/No Annually Grab 1, 4, 5 82546 Water level, distance from measuring point ft Monthly Calculated 1, 2, 3 I . 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November. 2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of pH shall be made slier purging and prior to sampling for the remaining parameters. 3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top of casing) of all monitoring wells shall be surveyed relative to a common datum. 4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods: a. Standard Method 6230D, PQL at 0.5 µg/L or less b. Standard Method 621OD, PQL at 0.5 µg/L or less c. EPA Method 8021, Low Concentration, PQL at 0.5 µg/L or less d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/L or less e. Another method with prior approval by the Water Quality Permitting Section Chief Any method used must meet the following qualifications: a. A laboratory must be DWR certified to run any method used. b. The method used must, at a minimum, include all the constituents listed in Table VIR of Standard Method 6230D. c. The method used must provide a PQL of 0.5 µg/L or less that must be supported by laboratory proficiency studies as required by DWR. Any constituents detected above the MDL but below the PQL of 0.5 µg/L must be qualified (estimated) and reported. 5. If any volatile organic compounds (VOC) are detected as a result of monitoring as provided in Attachment C, then the Wilmington Regional Office supervisor, telephone number (910) 796-7215, must be contacted immediately for further instructions regarding any additional follow-up analyses required. 6. If TOC concentrations greater than 10 mg(L are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/L, this concentration will be taken to represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above. 7. Monitoring wells shall be reported consistent with the nomenclature and location information provided in Figure I and this attachment. WQ0028666 Version 2.1 Attachment C Page I of 1 ; r' +NO*•f e MIAI- �asin #2Basin #3 Sas:n 91 May': M. -6 '�� Sash #4 �, ' , • � "4. MIX-2 4 ' 1i -iC - t swms # SWMS~#2 US r � - ,,Q� GooSlc earn Figure 2 — Directional Ma WQ0028666 4201 Hwy 24, Newport, NC 28570 A ua North Carolina, Inc. 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