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HomeMy WebLinkAboutWQ0005790_Final Permit_20030312�c °pi A Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Honorable Horace Collier, Mayor Town of Oak Island 4601 E. Oak Island Drive Oak Island, North Carolina 28465-7608 Dear Mayor Collier: Alan W. Klimek, P.E. Director Division of Water quality March 12, 2003 SUBJECT: Town of Oak Island Modified Permit No. WQ0005790 Wastewater Treatment with Spray Irrigation & High Rate Infiltration Disposal System Project No. E-SRG-T-99-0044 Brunswick County In accordance with your application received December 23, 2002, we are forwarding herewith modified Permit No. WQ0005790 dated March 12, 2003, to the Town of Oak Island for the continued operation of the subject wastewater treatment with spray irrigation and high rate infiltration disposal system. The primary purpose of this permit modification is to increase the maximum application rate for the North Field spray irrigation site, zones 1, 2, & 3; see Condition II. 4. of this modified permit. The Town of Oak Island performed groundwater monitoring and analysis to demonstrate that the North Field site can adequately handle the increase in hydraulic loading rate from 2"/week to 3"/week, and this demonstration was accepted by the Division of Water Quality. This permit shall be effective from the date of issuance until March 11, 2008, shall void Permit No. WQ0005790 issued May 23, 2001, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, N. C. 27699-6714. Unless such demands are made, this permit shall be final and binding. _iA k{f b `Y 71 N. C. Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 (919) 733.7015 Customer Service 1 8C0 623-7748 -2- One (1) set of final approved plans and specifications is to be forwarded to you, one (1) set is being forwarded to your Engineer (A/E), one (1) set retained for the Washington Regional Office, one (1) set retained for the Construction Inspection Unit, and one (1) set retained for the Design Management Unit. A copy of the approved plans and specifications shall be maintained on file by the owner for the life of the project. If there are any questions concerning this matter, please contact Mr. Cecil G. Madden, Jr., P.E. at (919) 715-6203. Sincerely, Ian W. Klimek, P Attachment kp:nw cc: Jerry A. Walters, Town Manager George FinchBoney and Associates (Attn: G. Robert Graham, P.E.) Brunswick County Health Department Wilmington Regional Office, Water Quality Section Wilmington Regional Office, Groundwater Section ter Quality Section, Non -Discharge Permit Unit Groundwater Section, Permits & Compliance Unit Dan Blaisdell, P.E. Don Evans Cecil G. Madden, Jr., P.E. Ken Pohlig, P.E. Amy Simes, P.E. SRG -NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH SPRAY IRRIGATION/ 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 Town of Oak Island Brunswick County FOR THE continued operation of a 400,000 GPD wastewater treatment facility which consists of a dual -train extended aeration plant with influent bar screen, aerated surge tank with dual pumps, dual aeration basins with coarse -bubble fixed diffusers, aerobic digester and sludge holding tank, dual 28-foot diameter by 12 foot SWD circular clarifiers, a 4-cell tertiary filter; effluent chlorine disinfection system, on -site standby generator, a dosing pump station, with a total disposal capacity of 281,250 GPD partitioned in the following manner: (a) a 69,900 square foot rapid rate infiltration bed to provide 180,000 GPD disposal capacity of tertiary -treated effluent, and (b) 11.0 acres of spray irrigation facilities to provide 101,250 GPD disposal capacity of tertiary - treated effluent meeting reclaimed water quality standards. The reclaimed water spray irrigation facilities consist of alined 3.4 MG effluent storage and an unlined 1.5 MG (5 day) capacity "upset" detention pond, dual 600 GPM submersible irrigation pumps, continuous in - line effluent turbidity meter, an emergency bypass system for diversion of non -reuse quality effluent to the 5-day detention pond in the event of a plant upset, approximately 2600 linear feet of 8-inch force main to the 6.3 acre spray irrigation area (zones 1, 2, & 3) north of the existing plant consisting of 59 sprinklers, a 4.7 acre spray irrigation area (zones 4, 4A, 5, & 5A) at the existing plant area consisting of 40 sprinklers, and a 100 KW portable generator to provide emergency standby power for irrigation; to serve the Town of Oak Island with no discharge of wastes to the surface waters pursuant to the application received December 23, 2002 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 March 11, 2008, shall void Permit No. WQ0005790 issued May 23, 2001, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS 1. The spray irrigation facilities shall be effectively maintained and operated at all times so that there is no discharge to the surface waters, nor any contamination of groundwaters, which will render there unsatisfactory for normal use. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions or failure of the irrigation area to adequately assimilate the wastewater, the Permittee shall take immediate corrective actions including those actions that may be required by the Division of Water Quality (Division), such as the construction of additional or replacement treatment and disposal facilities. 2. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to groundwater or surface water resulting from the operation of this facility. 3. The residuals generated from these treatment facilities must be disposed of in accordance with General Statute 143-215.1 and in a manner approved by the North Carolina Division of Water Quality. 4. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 5. Adequate measures shall be taken to direct stormwater from the high rate infiltration area and to prevent wastewater run-off. 6. The following buffers shall be maintained: a) 500 feet between high rate infiltration unit and any public surface water supply or public shallow potable water well, 2 b) 100 feet between high rate infiltration unit and any "SA" classified surface waters, c) 50 feet between high rate infiltration unit and any other surface waters, d) 100 feet between high rate infiltration unit and property lines, e) 50 feet between treatment units and property lines, f) 50 feet between high rate infiltration unit and other treatment units and public right of ways, and g) 200 feet between high rate infiltration unit and any groundwater drainage system, h) 100 feet between the edge of spray irrigation wetted area and any "SA" surface waters, i) 100 feet between the edge of spray irrigation wetted area and any potable water supply well, j) 10 feet between the edge of spray irrigation wetted area and any nonpotable well. II. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. 2. Upon classification of the facility by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the classification assigned to the wastewater treatment facilities by the WPCSOCC. The Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of 15A NCAC 8G .0202_ The ORC of the facility must visit each Class I facility at least weekly and each Class II, ITT, and IV facility at least daily, excluding weekends and holidays, and must properly manage and document daily operation and maintenance of the facility, and must comply with all other conditions of 15A NCAC 8G _0202. Once the facility is classified, the Permittee must submit a letter to the WPCSOCC, which designates the operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete. 3. Loading of the high rate infiltration basin with treated effluent shall not exceed 180,000 GPD. The permittee shall periodically drain and clean the infiltration basin and keep records of these maintenance activities. The Permittee may request an increased loading limit in the future based on demonstrated improvements in performance of the high rate infiltration system. 3 4. Disposal by spray irrigation shall be limited to 101,250 GPD. The following maximum annual averaged application rates shall apply to the spray irrigation system: Irrigation Site Zone Wetted Area Maximum Annual Averaged Irrigation Rate (inches/wk) Maximum Annual Averaged Flow Rate (gallons/day) North 1, 2, 3 6.7 Ac. 3" 73,320 Plant 4, 4A 2.2 1" 8,533 Plant 5, 5A 2.5 2" 19,397 TOTALS: 11.0 Acres 101,250 Wastewater applied to spray fields shall not exceed the maximum instantaneous irrigation loading rate of 0.4 inch/hour 5. A suitable year round vegetative cover over the spray irrigation fields shall be maintained. 6. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater outside of the high rate infiltration disposal area and spray irrigation areas. 7. Spray irrigation shall not be performed during inclement weather or when the ground is in a condition that will cause runoff. 8. No traffic or equipment shall be allowed on the disposal areas except while installation occurs or while normal maintenance is being performed. 9. Minimum free board of 2 feet shall be maintained below the top of the containment berms of the high rate infiltration basin, irrigation storage pond, and 5-day detention pond. 10. The screenings removed from the wastewater treatment plant shall be properly disposed in a sanitary landfill or by other means which have been approved by this Division. 11. An automatically activated standby power source 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. 4 12. The flow measurement device shall be calibrated annually by the representative of a firm which is routinely engaged in the calibration of flow measurement devices. Records of this calibration, including all information pertinent to the calibration, shall be available during any inspection by Division staff. 13. The application of chemicals to the infiltration bed is expressly prohibited unless otherwise approved by the Wilmington Regional Office. 14. Diffusers shall be cleaned as needed to ensure that adequate aeration is provided. Records of this maintenance shall be maintained by the permittee. 15. The rapid infiltration system shall be inspected daily. A records of all maintenance shall be recorded in the daily operations log for the facility. 16. No type of wastewater other than that from the Town of Oak Island's sewer system shall be sprayed onto the irrigation area. 17. Public access to the land application sites shall be controlled during active site use. Such controls must include the posting of signs showing the activities being conducted at each site. 18. Should the reclaimed water quality limit for fecal coliform (daily maximum concentration of 25 per 100 ml) or turbidity (instantaneous maximum of 10 NTU) be exceeded, all reclaimed -generated wastewater shall be handled in one of three ways, until the levels have stabilized below these maximum levels. The Town of Oak Island may further treat the wastewater to bring it into compliance with reclaimed water standards without returning the water to the facility's headworks, may reroute it to the headworks of the wastewater treatment facility for treatment to reuse standards, or may discharge it in strict accordance with the this permit's conditions into the high rate infiltration bed. III. MONITORING AND REPORTING REQUIREMENTS Any monitoring deemed necessary by the Division of Water Quality to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. Adequate records shall be maintained by the Permittee tracking the amount of wastewater disposed by spray irrigation. These records shall include, but are not necessarily limited to, the following information: a. date of irrigation, b. volume of wastewater irrigated C. field irrigated, d. length of time field is irrigated, C. continuous weekly, monthly, and year to date hydraulic (inches/acre) loadings for each field, f weather conditions, and g. maintenance of cover crops. 3. As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations for disposal to the high rate infiltration bed: Parameter Flow BOD5(5-day, 20°C) NH3 as N TSS Fecal Coliform Monthly Average a 180,000 GPD 10 mg/l 4 mg/l 20 mg/ 14 per 100 mlb Daily Maximum` 43 per 100 ml As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations for disposal to the spray irrigation fields utilizing reclaimed water: Parameter Flow BOD5 (5-day, 20°C) NH3 as N TSS Fecal Coliform Turbidity Monthly Average' 101,250 GPD 10 mg/l 4 mg/l 5 mg/1 14 per 100 ml b Daily Maximum 15 mg/1' 6 mg/l 10 mg/l 25 per 100 ml 10 NTU Monthly averages for all but fecal coliform shall be the arithmetic mean of all samples collected during the reporting period. b Monthly average for fecal coliform shall be the geometric mean of all samples collected during the reporting period. Daily maximum shall be the maximum value of all samples collected during the reporting period. 6 The effluent from the subject facilities shall be monitored by the Permittee at the point prior to discharge to the infiltration basin or irrigation storage lagoon for the following parameters: Parameter Flow Turbidity Residual Chlorine Settleable Matter BOD5 (5-day, 20°C) TSS Fecal Coliform NH3 as N NO3 TKN TDS TOC Chloride Sampling Point Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Sampling Frequency As Used Continuous Daily Daily *2/Month *2/Month *2/Month *2/Month *2/Month *2/Month * *Tri annually **Triannually **Triannually Type of Sample Recording Recording Grab Grab Composite Composite Grab Composite Composite Composite Grab Grab Grab The effluent pH shall not be less than 6.9 standard units nor greater than 9.0 standard units. * 2/Month sampling frequency only during the months of April through October. During the remainder of the year, these parameters shall be monitored monthly. ** Triannual sampling shall be conducted during February, June and October. If groundwater sampling indicates or predicts problems with compliance with of the Groundwater Standards, this permit will be modified to include additional and/or more restrictive Iimitations. 4. Three (3) copies of all operation and disposal records (as specified in condition III 2) on Form NDAR-I and three (3) copies of all effluent monitoring data (as specified in condition 111 3) on Form NDMR-1 shall be submitted on or before the last day of March, July and November. All information shall be submitted to the following address: 7 NC Division of Water Quality Water Quality Section Non -Discharge CompIiance/Enforcement Unit 1617 Mail Service Center Raleigh, NC 27699-1617 5. A record shall be maintained of all residuals removed from this facility. The record shall include the name of the hauler, the permit authorizing the disposal or a letter from a municipality agreeing to accept the residuals, the date the residuals were hauled and the volume of residuals removed. 6. A maintenance log shall be maintained at this facility including, but not limited to, the following items: a. Daily sampling results including residual chlorine, settleable matter, and dissolved oxygen in the aeration basin and at the clarifier weir; b. Visual observations of the plant and plant site; C. Record of preventative maintenance (changing of filters, adjusting belt tensions, alarm testing, diffuser inspections and cleanings, etc.); d. Date of calibration of flow measurement device; and e. Date and results of power interruption testing on alternate power supply. 7. NONCOMPLIANCE NOTIFICATION: The Permittee shall report by telephone to the Wilmington Regional Office, telephone no. (910) 395-3900, 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: Any occurrence at the wastewater treatment facility which results in the treatment of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester, the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that reader the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station of facility. d. Any time that self -monitoring information indicates that the facility has gone out of compliance with its permit limitations. Persons reporting such occurrences by telephone shall also file a written report in letter form within five (5) days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. IV. GROUNDWATER REQUIREMENTS Well Construction Criteria: 1. Within sixty (60) days of permit issuance, one new monitoring well (to be named MW-7), shall be installed to monitor groundwater level at the North Field spray site (zone 1, 2, & 3). The well shall be constructed such that the water level in the well is never above or below the screened (open) portion of the well at any time during the year. The general location and name for each well is marked on Attachment A. The monitoring well shall be a flush -mounted well with surrounding concrete pad, constructed in accordance with this permit and approved by the Wilmington Regional Office. 2. The well must be constructed by either a North Carolina Certified Well Contractor, the property owner, or the property lessee according to General Statutes 87-98.4(b)(2). if the construction is not performed by a certified well contractor, the property owner or lessee must physically perform the actual well construction activities, and the well(s) must be constructed according to the North Carolina Well Construction Standards (15A NCAC 2C .0108) and the local county rules. 3. The Wilmington Regional Office, telephone number (910) 395-3900, shall be notified at least forty-eight (48) hours prior to the construction of any monitoring well so that an inspection can be made of the monitoring well location. Such notification to the regional groundwater supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding state holidays. 9 4_ Within thirty (30) days of completion of all well construction activities, a certification must be received from a professional engineer or a licensed geologist certifying that the monitoring well(s) is located according to this permit. Sampling Criteria: 5. Monitoring wells MW-2 and MW-5 shall be sampled every February, June and October for the following parameters: Water Level* pH Chloride Total Dissolved Solids (TDS) Fecal Coliforms Total Organic Carbon (TOC) Nitrate (NO3) Total Ammonia Volatile Organic Carbon (VOC) analysis - Only in October *The measurement of water Ievels must be made prior to sampling for the remaining parameters. The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measuring points (top of well casing) of all monitoring wells shall he surveyed relative to a common datum. For Total Organic Carbon (TOC), if concentrations greater than 10 mg/1 are detected in any down -gradient 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 exceedance of this naturally occurring TOC concentration in the down -gradient wells shall be subject to the additional sampling and analysis as described above. For Volatile Organic Compounds (VOCs) sampled in October, use only one of the following methods: a. Standard Method 6230D, Practical Quantitation Limit (PQL) at 0.5 ug[L or less b. Standard Method 6210, PQL at 0.5 ug/L or less C. EPA Method 8 02 1, Low Concentration, PQL at 0.5 ug/L or less d. EPA Method 8260, Low Concentration, PQL at 0.5 ug/L or less C. Another method with prior approval by the Groundwater Section Chief. 1101 Any of the referenced methods used for VOCs must at a minimum, include all the constituents listed in Table VIR of Standard Method 6230D. Any method used must provide a PQL of 0.5 ug/L or less, which must be supported by laboratory proficiency studies as required by the DWQ Laboratory Certification Unit. Any constituents detected above the Method Detection Limit (MDL) but below the PQL of 0.5 ug/L must be qualified (estimated) and reported. Any laboratory selected to analyze parameters must be Division of Water Quality (DWQ) certified for those parameters required. 6. Monitoring wells MW-6 and MW-7 shall be sampled daily for the following parameter: Water Level The depth to water in each well shall be measured from the surveyed point on the top of the casing. The measuring points (top of well casing) of the monitoring well shall be surveyed to provide the relative elevation of the measuring point for each monitoring well. This water level data should be compiled, along with daily rainfall data and daily irrigation, into an annual report to be submitted to the Division of Water Quality/Groundwater Section at the end of each calendar year. Reporting / Documentation: 7. All reports and documentation (GW-1, GW-30, GW-59) shall be mailed to the following address: Groundwater Section Permits and Compliance Unit 1636 Mail Service Center Raleigh, NC 27699-1636 GW-1 is the Well Construction Form. GW-30 is the Well Abandonment Form. GW-59 is the Well Compliance Monitoring Form. Updated blank forms (GW-1, GW-30, GW-59) maybe downloaded from the Groundwater Section's website at http://gw.chnr.state.nc,us/ or requested from the address mentioned above. 11 8. For the initial sampling of the well(s), the permittee shall submit a copy of the GW-1 Form (Well Construction Record) with the Compliance Monitoring Form (GW-59) for each well to the address listed in the "Reporting / Documentation" section of the Groundwater Requirements. Initial Compliance Monitoring Forms that do not include copies of the GW-1 form may be returned to the permittee without being processed. Failure to submit these forms as required by this permit may result in the initiation of enforcement activities pursuant to NC General Statutes 143-215.6A. 9. The results of the sampling and analysis must be received on Form GW-59 (Groundwater Quality Monitoring: Compliance Report Form) by the Groundwater ,Section (address listed in the "Reporting / Documentation" section of the Groundwater Requirements), on or before the last working day of the month following the sampling month. The data of all groundwater sampling analyses required by the permit conditions must be reported using the most recent GW-59 form along with attached copies of the laboratory analyses. 10. Within sixty (60) days of completion of monitoring well MW-T, the permittee shall submit two original copies of a scaled site map (scale no greater than 1 "=1001; however, special provisions may be granted upon prior approval for large properties. The map(s) must include the following information: a. The location and identity of each monitoring well. b. The location of major components of the waste disposal system. C. The location of property boundaries within 500 feet of the disposal area(s). d. The latitude and longitude of the established horizontal control monument. e. The elevation of the top of the well casing (which shall be known as the "measuring point") relative to a common datum. f. The depth of water below the measuring point at the time the measuring point is established. g. The location of Review and Compliance boundaries. h. The date the map is prepared and/or revised. Control monuments shall be installed in such a manner and made of such materials that the monument will not be destroyed due to activities that may take place on the property. Maps and any supporting documentation shall be sent to the Groundwater Section as addressed in the "Reporting / Documentation" above. 12 The permittee is responsible for the geographic accuracy of any map submitted, however produced. Applicable Boundaries: 11. In accordance with 15A NCAC 211.0219(k)(1)(C)(1)(M), the Compliance Boundary and Review Boundary for disposal systems using reclaimed domestic or municipal water are both established at the property boundary. An exceedance of Groundwater Quality Standards at or beyond the Compliance/Review Boundaries is subject to immediate remediation action in accordance with 15A NCAC 2L,0108, in addition to the penalty provisions applicable under General Statute 143-215.6A(a)(1). Additional Requirements: 12. Waste application activities shall not occur when the vertical separation between depth of application and the water table is at less than one (1) foot. Verification of the water table elevation can be confirmed by water level readings obtained from the monitor well(s) near the site or auger boring(s), which must be done within 24 hours, prior to application of wastewater. Any open borings must be properly filled with native soil, prior to application to decrease the chance of any waste contaminating the groundwater. 13. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. V. INSPECTIONS 1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to insure proper operation of the subject facilities. 2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall keep an inspection log or summary including at least the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of three (3) years from the date of the inspection and shall be made available upon request to the Division of 'Water Quality or other permitting authority_ 13 3. Any duly authorized officer, employee, or representative of the Division of Water Quality may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the disposal site and facility at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be kept under the terms and conditions of this permit; or may obtain samples of groundwater, surface water, or leachate. VI. GENERAL CONDITIONS This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans, specifications, and other supporting data. 2. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data. 3. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 4_ Failure to abide by the conditions and limitations contained in the permit may subject the Permittee to an enforcement action by the Division in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 6. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of the project. 7. The annual administering and compliance fee must be paid by the Permittee within thirty (30) days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205(e)(4). 14 8. The Perrnittee, at least six (6) months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Commission will review the adequacy of the facilities described therein, and if warranted, will extend the permit for such period of time under such conditions and Iimitations as it may deem appropriate. Modified permit issued this the 12th day of March 2003. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION l Ian W. 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