Loading...
HomeMy WebLinkAboutWQ0000193_Final Permit_20121127A4i';A NCDENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman Governor Director Secretary November 27, 2012 CALVIN PECK — MANAGER VILLAGE OF BALD HEAD ISLAND POST OFFICE BOX 3009 BALD HEAD ISLAND, NORTH CAROLINA 28461 Subject: Permit No. WQ0000193 Bald Head Island WWTF High -Rate Infiltration System Brunswick County Dear Mr. Peck: In accordance with your permit minor modification request received July 31, 2012, we are forwarding herewith Permit No. WQ0000193 dated November 27, 2012, to the Village of Bald Head Island for: the continued operation of the subject existing wastewater treatment facilities and Timber Creek pump station; the continued operation and subsequent relocation/reshaping of the high -rate infiltration facilities; and the construction and operation of the modified wastewater treatment facilities. The modifications to the subject permit are as follows: the addition of a dissolved oxygen and pH sensor system in the SBR basins; an alum chemical feed system; and an alkalinity chemical feed system. Please note that on August 5, 2009, Session Law 2009-406, entitled "An Act to Extend Certain Government Approvals Affecting the Development of Real Property Within the State," was enacted by the General Assembly and signed into law. The Act, known as the Permit Extension Act of 2009, extends the expiration date of certain government approvals and permits. In addition, Session Law 2010-177 extended the Act by another year. Permit No. WQ0000193 falls within the scope of this Act and is therefore being extended until September 30, 2015. A renewal application must still be submitted six months in advance of the extended expiration date. This permit shall be effective from the date of issuance until September 30, 2015, shall void Permit No. WQ0000193 issued December 10, 2008, 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://portal.ncdenr.org/web/wg/aps/lau/reportin . AQUIFER PROTECTION SECTION 1636 Mail Service Center, Raleigh, North Carolina 27699-1636 Location: 512 N. Salisbury St., Raleigh, North Carolina 27604 Phone: 919-807-64641 FAX: 919.807-6496 Internet: www.ncwaterQuality.org An Equal Opportunity 1 Affirmative Action Employer No thCarolina Naturally Mr. Calvin Peck November 27, 2012 Page 2 of 4 Please note the following permit conditions have been removed since the last permit issuance dated December 10, 2008: ➢ Old Condition I.3. — This condition has been removed because the water supply wells within the compliance boundary have been removed. ➢ Old Condition I.4. — This condition has been removed because monitoring well MW -2 has been permanently abandoned. ➢ Old Condition I.5. — This condition has been removed because Lagoons 4 and 5 have been reshaped/relocated as previously permitted. In addition, the Permittee has elected to keep Lagoon 3 in the permit; however, Lagoon 3 shall not be used for wastewater effluent disposal. ➢ Old Condition III.3. — This condition has been removed because it is specific to facilities that utilize irrigation systems. ➢ Old Condition II1.13. — This condition has been removed because it is inherently covered under Condition IV. 10. Please note the following permit conditions are new or modified since the last permit issuance dated December 10, 2008: ➢ Permit Type — Please note that the permit type has changed from an Infiltration Lagoon System (i.e., Other Non -Discharge Wastewater System) to a High -Rate Infiltration System. This change has been done in name -only and was made to properly reflect the type of existing system based on the 02T rules. Please note that no setbacks, effluent limits, or any other regulatory requirement has changed from those previously granted to the existing facility under the 15A NCAC 02H .0200 rules. ➢ Condition II.11.c. — This condition includes the 02T setbacks for the new wastewater treatment units (i.e., alum chemical feed system, alkalinity chemical feed system, etc.). ➢ Condition III.7. — This condition prohibits Public access to the wastewater treatment facilities. ➢ Condition 11I.13. —This condition requires that the infiltration basins be periodically dredged to remove deposited materials that may impede the infiltration process. ➢ Condition IV.8. — Per General Statute 143-215.1C., this condition requires the Permittee to provide its users and the Division of Water Quality an annual report summarizing the performance of the wastewater treatment and infiltration facility and the extent to which the facility has violated this permit, or federal or State laws, regulations, or rules related to the protection of water quality. ➢ Condition VI.5. — This condition notes that the Permittee shall retain the Division's written approval for the approved flow reduction for the life of the facility, and shall transfer said written approval to any future Permittee. ➢ Condition VI.10. —This condition notes that this permit is subject to revocation or unilateral modification within 60 days notice from the Division if the terms in 15A NCAC 02T .0110 are violated. Mr. Calvin Peck November 27, 2012 Page 3 of 4 ➢ Condition VI.11. —This condition notes that the facilities in this permit may not be expanded AWN.- if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). ➢ Attachment A — Per the Division of Water Quality's Aquifer Protection Section Wastewater Monitoring Policy, all non -discharge systems are having their effluent monitoring schedules reevaluated. Accordingly, the changes to the PPIs are as follow: o PPI 001 — These are the existing sampling parameters and frequencies, which shall remain i`n effect until December 31, 2013. On January 1, 2014, PPI 002 shall become effective, and PPI 001 will be suspended. Please note that the PCS Code for Total Dissolved Solids has changed from 70295 to 70300. o PPI 002 — This PPI will become effective January 1, 2014 and will replace PPI 001. This PPI increases the sampling frequency for BOD5i Fecal Coliform, Ammonia, Nitrate and TSS to weekly during peak season (May through September) and twice per month during the off-season (October through April). The sampling requirement for pH is now five times per week, and the samples for chloride and Total Dissolved Solids shall now be composite instead of grab. Please also note that Total Organic Carbon will no longer be sampled. ➢ Attachment C — A daily maximum groundwater standard of 1.5 mg/L is now included for Ammonia (00610). 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 op", this permit. This request shall be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings at 6714 Mail Service Center, Raleigh, NC 27699-6714. Unless such demands are made, this permit shall be final and binding. 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.thomburga.n cdenr. gov. Sincerely, iarl;Wakild, P.E. cc: Brunswick County Health Department Wilmington Regional Office, Aquifer Protection Section Charles D. Riley, Jr., PE — McKim & Creed, Inc. Permit File WQ0000193 Notebook File WQ0000193 Mr. Calvin Peck November 27, 2012 Page 4 of 4 THIS PAGE BLANK NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COWMSSION 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 Village of Bald Head Island Brunswick County FOR THE operation of a 400,000 gallon per day (GPD) wastewater treatment and high -rate infiltration facility consisting of the: construction and operation of the wastewater treatment facility modifications consisting of three rte" dissolved oxygen (DO) sensors with one in each sequencing batch reactor (SBR) basin; three pH sensors with one in each SBR basin; an alkalinity feed system with an 18 gallon per minute (GPM) air -operated double diaphragm polypropylene pump to transfer chemical from the totes to a 500 gallon magnesium hydroxide storage tank served by two 0.4 GPM chemical metering pumps and a 2 horsepower (hp) mixer; an alum feed system with an 18 GPM air -operated double diaphragm polypropylene pump to transfer chemical from the totes to a 500 gallon liquid alum storage tank served by two 0.4 GPM chemical metering pumps; 35 linear feet of 10 -inch diameter ductile iron plant effluent recycle force main; and all associated piping, valves, controls and appurtenances; the continued operation of a wastewater treatment facility consisting of a 223,000 gallon aerated flow equalization basin served by a 382 cubic feet per minute (CFM) blower, a screw type mechanical bar screen with bag compactor; three 155,000 gallon SBRs served by 382 CFM blowers; a flow meter; a 28,000 gallon post equalization/aeration basin with three submersible pumps each rated at 139 GPM and one floating aerator; two Aqua Disk filters each with a surface area of 215.2 square feet (ft) and a hydraulic loading rate up to 3 gallons per minute per square foot (GPMIW); a backwash pump station with two submersible pumps each rated at 50 GPM; a 336,000 gallon aerobic digester with three compartments each with a floating aerator; an ultraviolet (UV) light disinfection system with a redundant back-up system; an effluent pump station with two submersible pumps each rated at 556 GPM; an 8 -inch magnetic flow meter; and all associated piping, valves, controls and appurtenances; the continued operation of the Timber Creek lift station consisting of. an influent pump station with two submersible pumps each rated at 700 GPM; and all associated piping, valves, controls and appurtenances; and the continued operation of the high -rate infiltration facilities consisting of Lagoon 3 with an area of 1.88 acres and a loading rate of 0 gallons per day per square foot (GPD/ft); Lagoon 4 with an area of 0.32 acres and a loading rate of 5.43 GPD/ftZ; Lagoon 5 with an area of 1.38 acres and a loading rate of 5.43 GPD/ft'; and all associated piping, valves, controls and appurtenances; WQ0000193 Version 2.2 Shell Version 120726 Page 1 of 12 to serve Bald Head Island WWTF, with no discharge of wastes to surface waters, pursuant to the application received July 31, 2012, 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 September 30, 2015, shall void Permit No. WQ0000193 issued December 10, 2008, and shall be subject to the following specified conditions and limitations: I. SCHEDULES In accordance with 15A NCAC 02T .0 116, upon completion of construction and prior to operation of the permitted facility modifications, a certification (attached) shall be submitted from a licensed North Carolina Professional Engineer certifying that the permitted facility modifications 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 Quality, Aquifer Protection Section, 1636 Mail Service Center, Raleigh, NC 27699-1636. 2. 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 modified facilities such that an in-place inspection can be made. Notification to the Aquifer Protection Section's 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. 4. 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. WQ0000193 Version 2.2 Shell Version 120726 Page 2 of 12 H. PERFORMANCE STANDARDS 1. 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. 10,111, In the event the facilities fail to perform satisfactorily, including the creation of nuisance conditions ,.r 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. 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. 5. Application rates, whether hydraulic, nutrient or other pollutant, shall not exceed those specified in Attachment B. The compliance boundary for the disposal system shall be specified in accordance with 15A NCAC 02L .0107(b). This disposal system was individually permitted on or after December 30, 1983; therefore, the compliance boundary is established at either 250 feet from the effluent disposal area, or 50 feet within the property boundary, whichever is closest to the effluent disposal area. An exceedance of groundwater standards at or beyond the compliance boundary is subject to remediation action according to 15A NCAC 02L .0106(d)(2) as well as enforcement actions in accordance with North Carolina General Statute 143-215.6A through 143-215.6C. 7. In accordance with 15A NCAC 02L .0108, the review boundary is established midway between the compliance boundary and the effluent disposal area. Any exceedance of groundwater standards at the review boundary shall require action in accordance with 15A NCAC 02L .0106. 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 land within the compliance boundary shall execute and file with the Brunswick 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 e. 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. WQ0000193 Version 2.2 Shell Version 120726 Page 3 of 12 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 .0200 shall be as follows (all distances in feet): i. Any on -property residential units that are to be sold: 10 ii. Any private or public water supply source: 100 iii. Surface waters: 100 iv. Groundwater lowering ditches: 25 v. Surface water diversions: 25 vi. Any well with exception of monitoring wells: 100 vii. Any property line: 50 viii. Top of slope of embankments or cuts of two feet or more in vertical height: 15 ix. Any water line from a disposal system: 10 x. Subsurface groundwater lowering drainage systems: 25 xi. Any swimming pool: 100 xii. Public right of way: 50 xiii. Nitrification field: 20 xiv. Any building foundation or basement: 15 xv. Impounded public water supplies: 500 xvi. Public shallow groundwater supply: 500 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: 100 ii. Any property line: 50 c. The setbacks for the chemical storage and treatment units permitted under 15A NCAC 02T .0700 shall be as follows (all distances in feet): i. Any habitable residence or place of public assembly under separate ownership: 100 ii. Any private or public water supply source: 100 iii. Surface waters: 50 iv. Any well with exception of monitoring wells: 100 v. Any property line: 50 III. 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. WQ0000193 Version 2.2 Shell Version 120726 Page 4 of 12 3. Only effluent from the Bald Head Island WWTF shall be infiltrated on the sites listed in Attachment B. 4. An automatically activated standby power source capable of powering all essential treatment units .6,01, shall be on site and operational at all times. If a generator is employed as an alternate power supply, V*AW' 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 listed in Attachment B shall be controlled. Such controls shall include the posting of signs showing the activities being conducted at each site. 7. Public access to the wastewater treatment facilities shall be prohibited. 8. 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. 9. Diversion or bypassing of untreated or partially treated wastewater from the treatment facilities is prohibited. 10. Freeboard in the Lagoons 3, 4 and 5 shall not be less than two feet at any time. 11. Gauges to monitor waste levels in Lagoons 3, 4 and 5 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. 12. 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. 13. The infiltration basin(s) shall be periodically dredged to remove deposited materials that may impede the infiltration process. Dredging 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's Aquifer Protection Section, telephone number (910) 796-7215, shall be notified prior to dredging. 14. The Permittee shall provide for the Timber Creek pump station and force main the following items: a. Pump on/off elevations located so that 2-8 pumping cycles may be achieved per hour in the pump station; b. An air relief valve located at all high points along the force main; c. A screened vent for the wet well; d. Fillets located in the wet well at the intersection of the flooring and sidewalls; e. Three feet of cover (minimum) over the force main or the use of ferrous material where three feet cannot be maintained; f. Sufficient devices which will protect the pump station from vandals; and g. Flood protection if the pump station is located below the 100 -year flood elevation. WQ0000193 Version 2.2 Shell Version 120726 Page 5 of 12 TV. MONITORING AND REPORTING REOUIItEMENTS 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. 0 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. The Permittee shall maintain adequate records tracking the amount of effluent infiltrated. At a minimum, these records shall include the following information for each infiltration site listed in Attachment B: a. Date of infiltration; b. Volume of effluent infiltrated; c. 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 Lagoons 3, 4 and 5 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. Three copies of all monitoring data (as specified in Conditions N.3. and IVA.) on Form NDMR for each PPI and three copies of all operation and disposal records (as specified in Conditions IV.S. 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 Quality Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 WQ0000193 Version 22 Shell Version 120726 Page 6 of 12 8. Pursuant to § 143-215.1C., the Permittee shall provide to its users and the Division of Water Quality an annual report summarizing the performance of the wastewater treatment and infiltration facility and the extent to which the facility has violated this permit, or federal or State laws, regulations, or rules related to the protection of water quality. This report shall be prepared on either a calendar or fiscal year basis and shall be provided no later than 60 days after the end of the calendar or fiscal year. Two copies of the annual report provided to the Permittee's users shall be submitted to: Division of Water Quality Aquifer Protection Section 1636 Mail Service Center Raleigh, North Carolina 27699-1636 9. 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. 10. A maintenance log shall be maintained at this facility. This log shall be maintained at the facility for a period of no less than five years, and shall be made available to the Division upon request. At a minimum, this log shall include: a. Date and results of power interruption testing on alternate power supply; b. Date of calibration of flow measurement device; c. 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.). 11. 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. 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 Quality Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 WQ0000193 Version 2.2 Shell Version 120726 Page 7 of 12 V. 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 fust 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 basins. Any emergency requiring immediate reporting (e.g., discharges to surface waters, imminent failure of a storage structure, etc.) outside normal business hours shall be reported to the Division's Emergency Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733-3300. Persons reporting such occurrences by telephone shall also file a written report in letter form within five days following first knowledge of the occurrence. This report shall outline the actions taken or proposed to be taken to ensure the problem does not recur. 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 f6r 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. WQ0000193 Version 2.2 Shell Version 120726 Page 8 of 12 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- 100111' 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. 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. In accordance with 15A NCAC 02T .0114(f) and pursuant to an approved flow reduction request, the Division accepts the data -based design flow rate of 237 gallons per day per residential unit (GPD/RU) for the users served by this facility. Regardless of the adjusted daily wastewater design flow rate, at no time shall wastewater flows exceed the limits defined in this permit for the subject facility, or exceed the sewer capacity downstream of any new sewer extension or service connection(s). The Permittee shall report the actual (i.e., measured) monthly average amount of wastewater flow contributed per unit (GPD/RU) for the 12 months prior to permit renewal. If any of these actual monthly averages are within 20% of the approved value, the Permittee shall re-evaluate the approved value using the methodology applied to determine the approved flow rate of 237 GPD/RU, and submit this information within 18 months of renewal. The Division may change the daily wastewater design flow rate for connections to the system at that time, and upon each renewal cycle, pending an ,,w•, evaluation of the submitted flow information. I%W 5. In accordance with 15A NCAC 02T .0114(f)(4), the Permittee shall retain the Division's written approval of any authorized adjusted daily design flow rate for the life of the facility, and shall transfer said written approval to any future Permittee. 6. 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 NCGO10000; any requirements pertaining to wetlands under 15A NCAC 02B .0200 and 02H .0500; and documentation of compliance with Article 21 Part 6 of Chapter 143 of the General Statutes. 7. 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. 8. The Permittee shall retain a set of Division approved plans and specifications for the life of the facilities permitted herein. 9. 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). 10. This permit is subject to revocation or unilateral modification upon 60 days notice from the Division Director, in whole or part for the requirements listed in 15A NCAC 02T .0110. WQ0000193 Version 2.2 Shell Version 120726 Page 9 of 12 11. Unless the Division Director grants a variance, expansion of the permitted facilities contained herein shall not be granted if the Permittee exemplifies any of the criteria in 15A NCAC 02T .0120(b). 12. 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 27th day of November 2012 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION f� h Os Wakild, Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0000193 Ka H WQ0000193 Version 2.2 Shell Version 120726 Page 10 of 12 Permit No. WQ0000193 Village of Bald Head Island Bald Head Island WWTF ENGINEERING CERTIFICATION ❑ Partial ❑ Final High -Rate Infiltration System November 27, 2012 Brunswick County In accordance with 15A NCAC 02T .0 116, I,_ , 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 Permittee's minor modification request to amend the permit accordingly. Provide a brief narrative description of any variations: 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 QUALITY AQUIFER PROTECTION SECTION LAND APPLICATION UNIT By U.S. Postal Service: 1.636 MAIL SERVICE CENTER By Courier/Special Delivery: 512 N. SALISBURY ST. RALEIGH, NORTH CAROLINA 27699-1636 RALEIGH, NORTH CAROLINA 27604 WQ0000193 Version 2.2 Shell Version 120726 Page 1 1 of 12 THIS PAGE BLANK •❑ WQ0000193 Version 2.2 Shell Version 120726 Page 12 of 12 ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS PPI 001 — WWTF Effluent (Effective until December 31, 2013) Permit Number: WQ0000193 Version: 2.2 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{ i 2 x Month /Monthly 2 Composite 00680 Carbon, Total Organic (TOC) mg/L 3 x Year 3 Grab 00940 Chloride (as Cl) mg/L 3 x Year 3 Grab 31616 Coliform, Fecal MF, M -FC Broth, 44.5'C #/100 mL 14 ! l3 2 x Month 1,4 /Monthly 24 Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 400,000 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 2 x Month 1 / Monthly 2 Composite 00620 Nitrogen, Nitrate Total (as N) mg/L 3 x Year 3 Grab 00400 pH su 3 x Year 3 Grab 70300 Solids, Total Dissolved — 180 °C mg/L % 3 x Year 3 Grab 00530 Solids, Total Suspended mg/L 20 2 x Month 1 / Monthly s Composite I. 2 x Month sampling shall be conducted from April through October. 2. Monthly sampling shall be conducted from November through March. 3. 3 x Year sampling shall be conducted during March, July and November. 4. Monthly average for Fecal Coliform shall be a geometric mean. WQ0000193 Version 2.2 Attachment A Page 1 of 2 PPI 002 — WWTF Effluent (Effective January 1, 2014) 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 10a ,, ''" Weekly' / 2 x Month 2 Composite 00940 Chloride (as Cl) mg/L A„ 1,: ,:� �_ 3 x Year 3 Composite 31616 Coliform, Fecal MF, M -FC Broth, 44.5 °C #/100 mL' 14 i 43 Weekly' 4 / 2 x Month 2.4 Grab 50050 Flow, in Conduit or thru Treatment Plant GPD 400,000 Continuous Recorder 00610 Nitrogen, Ammonia Total (as N) mg/L 4 Weekly' / 2 x Month 2 Composite 00620 Nitrogen, Nitrate Total (as N) mg/L Weekly' / 2 x Month 2 Composite 00400 pH su 5 x Week Grab 70300 Solids, Total Dissolved — 180 'C mg/L 3 x Year 3 Composite 00530 Solids, Total Suspended mg/L 20 Weekly' / 2 x Month 2 Composite 1. Weekly sampling shall be conducted from May through September. 2. 2 x Month sampling shall be conducted from October through April. 3. 3 x Year sampling shall be conducted during March, July and November. 4. Monthly average for Fecal Coliform shall be a geometric mean. WQ0000193 Version 2.2 Attachment A e 2 of 2 ATTACHMENT B - APPROVED LAND APPLICATION SITES AND LIMITATIONS Village of Bald Head Island — Bald Head Island WWTF Permit Number: WQ0000193 Version: 2.2 INFILTRATION AREA INFORMATION APPLICATION LIMITATIONS Basin Owner County Latitude Longitude Net Dominant Acrea a Soil Series Parameter Rate Units 3 Village of Bald Head Island Brunswick 33'51'33" -77° 59'36" 1.88 01284 —Non -Discharge Application Rate 0 GPD/ft2 4 Village of Bald Head Island Brunswick 33'51'38" -77° 59'39" 0.32 01284 — Non -Discharge Application Rate 5.43 GPD/ft 5 Village of Bald Head Island Brunswick 33° 51' 42" -770 59' 42" 1.38 01284 —Non -Discharge Application Rate 5.43 GPD/ft Totals 3.58 WQ0000193 Version 2.2 Attachment B Page 1 of 2 THIS PAGE BLANK WQ0000193 Version 2.2 Attachment B Page 2 oft 0 ATTACHMENT C — GROUNDWATER MONITORING AND LIMITATIONS Monitoring wells: MW -1, MW -3, MW -4, MW -5 and MW -6 Permit Number: WQ0000193 Version: 2.2 GROUNDWATER CHARACTERISTICS GROUNDWATER STANDARDS MONITORING REQUIREMENTS PCS Code Parameter Description Daily Maximum Frequency Measurement Sample Type Footnotes 00680 Carbon, Tot Organic (TOC) mg/L 3 x Year Grab 1,6 00940 Chloride (as Cl) 250 mg/L 3 x Year Grab 1 31616 Coliform, Fecal MF, M -FC Broth, 44.5 °C #/100 mL 3 x Year Grab 1 00610 Nitrogen, Ammonia Total (as N) 1.5 mg/L 3 x Year Grab 1 00620 Nitrogen, Nitrate Total (as N) 10 mg/L 3 x Year Grab 1 00400 pH 6.5-8.5 su 3 x Year Grab 1,2 00665 Phosphorus, Total (as P) mg/L 3 x Year Grab 1 70300 Solids, Total Dissolved - 180 °C 500 mg/L 3 x Year Grab 1 78732 Volatile Compounds (GC/MS) Present: Yes/No Annually Grab 1, 4, 5 82546 Water level, distance from measuring point ft 3 x Year Calculated 1, 2, 3 1. 3 x Year monitoring shall be conducted in March, July & November; Annual monitoring shall be conducted every November. 2. The measurement of water levels shall be made prior to purging the wells. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measurement of pH shall be made after purging and prior to sampling for the remaining parameters. 3. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. The measuring points (top of casing) of all monitoring wells shall be surveyed relative to a common datum. 4. Volatile Organic Compounds (VOC) - In November only, analyze by one of the following methods: a. Standard Method 6230D, PQL at 0.5 µg/L or less b. Standard Method 621 OD, PQL at 0.5 4g/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 gg/L or less e. Another method with prior approval by the Aquifer Protection Section Chief Any method used must meet the following qualifications: a. A laboratory must be DWQ certified to run any method used. b. The method used must, at a minimum, include all the constituents listed in Table VIII of Standard Method 6230D. C. The method used must provide a PQL of 0.5 4g/L or less that must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents detected above the MDL but below the PQL of 0.5 gg/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 Aquifer Protection 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 land this attachment. WQ0000193 Version 2.2 Attachment C Page 1 of 1 i a , �� Burrreh Bald Head Island R �` CL Bald Head Isiand5&"-- i'; C Lagoon cJ /i h a f Ga Id�Head Is"land WV lip Goofs r, K" �Y s ����i ''�'�1' f l� t_G009e�S �rr �t rS•y�} �i�� Imagery pate '0:2-2010 Iat;'3uJE 1. 0'I 5 a n6 :e� 8i1 y�c A t+1; ft Figure 2– Directional Map WQ00 0193 256 Edward Teach Wynd, Bald Head Isa d \C 28461 Village of Bald Head Gland Latitude: 3385797 ° Std Head Island WWTF Longitude: -77.983763' ¥»» } ��r { �« � � # � � r it badIsa�nd Club §t, - 2 �e � � } \ .: wale R- k S v R 11c4 % ». a _ C/111 bIn $ m ® ». 0 2012 Microsoft Corporation 0202Nokia