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HomeMy WebLinkAboutWQ0002829_Final Permit_20020124�j State of North Carolina Department of Environment and Natural Resources Division of Water Quality Michael F. Easley, Governor William G. Ross, Jr., Secretary Gregory I Thorpe, Ph.D., Acting Director GEORGE E GOODRICH KDHWWTP, LLC PO BOX 3629 KILL DEVIL HILLS NC 27948 Dear Mr. Goodrich: ■` � LLN • NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AN[) NATURAL RESOURCES January 24, 2002 Subject:Pernit No. WQ0002829 KDHWWTP, LLC Outer Banks Beach Club High Rate Infiltration System Dare County In accordance with your name change request received November 19, 2001, we are forwarding herewith Permit No. WQ0002829, dated January 24, 2002, to KDHWWTP, LLC for the continued operation of the subject nigh rate infiltration system. This permit shall be effective from the date of issuance until September 30, 2002, shall void Permit No. WQ0002829 issued October 3, 1997, 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, you have the right to request 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 the North Carolina General Statutes, and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, NC 27699-6714. r Unless such demands are made this permit shall be final and binding. ?� <3 ttLti1 1 If you need additional information concerning this matter, please contact Thelma Williams. at (919) 733- 5083 extension 556. Since y, Gregory J. Thorpe, Ph.D. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone (919) 733-5083 FAX (919) 715-6048 An Equal Opportunity Affirmative Action Employer 50% recycied/ 10% post -consumer paper CC' Dare County Health Department Albemarle Engineering, Inc. Washington Regional Office, Water Quality Section Washington Regional Office, Groundwater Section Bob Check, Groundwater Section, Central Office Technical Assistance and Certification Unit Non -Discharge Compliance/Enforcement Unit NDPU=Files WQ Central Files ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH 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 KDHWWTP, LLC Dare County FOR THE continued operation of a 300,000 GPD (based on a loading rate of 10 GPDISF) wastewater collection, treatment and rotary distributor disposal systems consisting of two 100,000 gallon aeration basins each with dual 50,000 gallon aeration/clarification modules, two 10,000 gallon sludge holding tanks, four dual cell 50,000 GPD tertiary filter units, one 100,000 GPD extended aeration package plant, a 10,435 gallon capacity baffled chlorine contact/filter backwash tank, a gas chlorinator system, recording effluent flow meter with totalizer, a 10,000 gallon capacity effluent dosing tank with high water alarm and seven, 150 GPM dosing pumps discharging to seven rotary distributors including four distributors rated at 25,000 GPD with a diameter of 57 feet and three distributors rated at 50,000 GPD with a diameter of 80 feet, a stand-by power system consisting of a 45 kW generator and a new 115 kW generator; and for the construction and operation of an additional 200,000 GPD wastewater treatment system and a 250,000 GPD rotary distributor disposal facilities consisting of two 100,000 gallon aeration basins, each with dual 50,000 gallon aeration/clarification units, two 10,000 gallon aeration basins, each with dual 50,000 gallon aeration/clarification units, two 10,000 gallon sludge holding tanks, four dual cell 50,000 GPD tertiary filter units, five rotary distributors rated at 50,000 GPD each and having a diameter of 80 feet, and all associated valves, fittings, and appurtenances for a total treatment and disposal facility rating of 0.500 MGD to serve Outer Banks Beach Club, with, no discharge of wastes to the surface waters, pursuant to the application received July 1, 1997, and in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment, Health and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until September 30, 2002, shall void Permit No. WQ0002829 issued October 3, 1997, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS Upon completion of construction of the third, fourth and fifth phases of the treatment facility and prior to operation of the additional permitted facility, a certification trust be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting materials. Mail the Certification to the Water Quality Non Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617. 2. The Washington Regional Office, telephone number 919-946-6481, shall be notified at least forty-eight hours in advance of operation of the installed facilities so that an in -place inspection can be made. Such notification to the regional 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. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective actions, including those actions that may be required by this Division, such as the construction of additional or replacement wastewater treatment or disposal facilities. 4. This permit shall become voidable if the soils fail to adequately assimilate the wastes and may be rescinded unless the facilities are installed, maintained, and operated in a manner which will protect the assigned water quality standards of the surface waters and ground waters. The ponding of wastewater on the surface of the distribution field when the dosing cycle commences shall be considered as evidence of failure of the soils to adequately assimilate the wastewater. Additionally, such failure shall be interpreted as a violation of this permit condition. The residuals generated from these treatment facilities trust be disposed in accordance with General Statute 143-215.1 and in a manner approved by the North Carolina Division of Water Quality. 6. Adequate measures shall be taken to divert stormwater from the high rate infiltration area and to prevent wastewater runoff. 7. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to surface or groundwaters resulting from the operation of this facility. The following buffers shall be maintained: a) 500 feet between high rate infiltration unit and any public works surface supply or public shallow potable water well, 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 units and other wastewater treatment units or public right of ways, g) 200 feet between high rate infiltration unit and surface or groundwater drainage systems. 10. A usable green area shall be maintained for wastewater disposal. The green area shall have the capability of accommodating the average daily flow of the facility being served without exceeding the loading rates of the green area. A "green area", as defined in 15A NCAC 2H .0404 (g)(7), 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. II. OPERATION AND MAINTENANCE REQUIREMENTS The facilities shall be properly maintained and operated at all times. 2, Upon classification of the facility by the Certification Commission, 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 Certification Commission. The Permittee must also employ a certified.back- up operator of the appropriate type and grade to comply with the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at least weekly and each Class II, III, 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 Title 15A, Chapter 8A, .0202. 3. The application rates for the high rate infiltration system shall not exceed 10 GPDISF. 4. 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, which result from the operation of this facility. 5. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 6. The rotary distribution fields shall be raked twice weekly during the months April through October and once a week during the months of November through March. 7. 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. 8. Vegetative growth must be kept out of the rotary distribution areas at all times. All vegetation must be removed manually so that minimal disturbance will occur to the disposal area. 9. The application of chemicals to the distribution field(s) is expressly prohibited. 10. 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. 11. The flow measurement device shall be calibrated annually by a 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. 12. Diffusers shall be removed from the aeration basin and serviced during the months of March, .tune, August and October. Additional servicing may be required and should be performed on an as needed basis by the operator. 13. The chlorine tablets used in the disinfection facility shall be of the kind and type specified in the plans and specifications approved by the Division. III. MONITORING AND REPORTING RE UIREMENTS 1. 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_ As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations: Parameter Monthly Averagea Daily Maximumc Flow * GPD BOD5 (5-day, 20°C) 10 mg/1 NH3 as N 4 mg/l TSS 20 mg/l Fecal Coliform 14 per 100 mlb 43 per 100 ml Flow shall be limited by the volume of treatment plant constructed or disposal capacity of rotary distributors up to 0.500 MGD, whichever is less. aMonthly averages for all but fecal coliform shall be the arithmetic mean of all samples collected during the reporting period. bMonthly average for fecal coliform shall be the geometric mean of all samples collected during the reporting period. cDaily maximum shall be the maximum value of all samples collected during the reporting period. The effluent from each treatment facility (Aero Mod plant and Metal Plant) shall be monitored by the Permittee at the point prior to discharge to the rotary distributor for the following parameterst: Parameter Samplina Point Samplingfrequency Type of Sample Flow Influent or Effluent Continuous Recording BOD5 (5-day, 20°C) Effluent *2/Month Composite NH3 as N Effluent *2/Month Composite TSS Effluent *2/Month Composite Fecal Coliform Effluent *2/Month Grab Settleable Matter Effluent Daily Grab Residual Chlorine Effluent Daily Grab NO3 Effluent Triannually Grab TDS Effluent **Triannually Grab TOC Effluent Triannually Grab Chloride Effluent **Triannually Grab Orthophosphate Effluent **Triannually Grab VOC Effluent **Triannually Grab The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard units T The monitoring reports for each treatment facility shall be submitted on separate effluent monitoring sheets. * 2/Month sampling frequency only during the months of April through October. During the remainder of the year, these parameters shall be monitored monthly. Triannually sampling shall correspond with triannual monitoring of wells required by Groundwater monitoring conditions. If Groundwater sampling indicates or predicts problems with compliance of the Groundwater Standards, this permit will be modified to include additional and/or more restrictive limitations. 3. Three (3) copies of all effluent monitoring data (as specified in condition III 2) on Form NDMR-1 shall be submitted on or before the Iast day of the following month. All information shall be submitted to the following address: NC Division of Water Quality Water Quality Section Non Discharge Compliance/Enforcement Unit 1617 Mail Service Center Raleigh, N.C. 27626-4535 4. 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. 5. 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; e. Date and results of power interruption testing on alternate power supply; and f. Dates fields were raked and arms inspected. Noncompliance Notification: The Permittee shall report by telephone to the Washington Regional Office, telephone number 919-946-6481, 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 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 basin or tank, 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 renders the facility incapable of adequate wastewater treatment, such as mechanical or electrical failures of pumps, aerators, compressors, etc.; C. Any failure of a pumping station, sewer Iine, or treatment facility resulting in a by- pass of all or any portion of the influent to such station or facility; or d. Any time that self -monitoring information indicates that the facility is not in 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 RE UIREMENTS 1. Within sixty days of permit issuance, existing monitor wells MW-I, MW-3, MW-5, MW- 7, and MW-10 shall be abandoned in accordance with 15A NCAC .0113(a)(2). A well abandonment record (GW-30 form) of the well shall be submitted to the Washington Regional Office within thirty days of well abandonment. 2. Prior to beginning waste disposal operations of the new rotary distributors, 4 monitor wells shall be installed to monitor groundwater quality. The new wells designated as MW-11, MW-12, MW-13 and MW-14 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. Each monitoring well shall be located at the Review Boundary, constructed in accordance with this permit, and approved by the Washington Regional Office. 3. All wells that are constructed for purposes of groundwater monitoring shall be constructed in accordance with 15A NCAC 2C _0108 (Standards of Construction for Wells Other than Water Supply) and any other state and local laws and regulations pertaining to well construction. 4. The Washington Regional Office, telephone number (919) 946-6481 shall be notified at least 48 hours prior to the construction of any monitoring well so that an inspection can be trade of the monitoring well location. Such notification to the regional groundwater supervisor shall be made during the normal office hours from 8:00 AM until 5.00 PM on Monday through Friday, excluding state holidays. 5. Within thirty days of completion of all well construction activities, a certification must be received from a professional engineer certifying that the monitoring wells are located and constructed in accordance with the Well Construction Standards (15A NCAC 2C) and this permit. This certification should be submitted with copies of the Well Completion Form (GW-1) for each well. Mail this certification and the associated GW-1 forms to the Permits and Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578. 6. For the initial sampling of the well as specified elsewhere in the permit, the permittee shall submit a copy of the GW-1 Form (Well Completion Form) with the Compliance Monitoring Form (GW-59) for that well. Compliance Monitoring Forms that do not include copies of the GW-1 form will 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 143-215.6. 7. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two original copies of a scaled topographic map (scale no greater than 1 ":100) signed and sealed by a professional engineer or a state licensed Iand surveyor that indicates all of the following information: a. the location and identity of each monitoring well, b. the location of the waste disposal system, c. the location of all property boundaries, d. the latitude and Iongitude of the established horizontal control monument, e. the relative elevation of the top of the well casing (which shall be known as the "measuring point"), and f. the depth of water below the measuring point at the time the measuring point is established. The survey shall be conducted using approved practices outlined in North Carolina General Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56. The surveyor shall establish a horizontal control monument on the property of the waste disposal system and determine the latitude and longitude of this horizontal control monument to a horizontal positional accuracy of +/- 10 feet. All other features listed in a. through e. above shall be surveyed relative to this horizontal control monument. The positional accuracy of features listed in a. through e. above shall have a ratio of precision not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any features located by the radial method will be located from a minimum of two points. Horizontal control monument 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. The map shall also be surveyed using the North American Datum of 1983 coordinate system and shall indicate the datum on the map. All bearings or azimuths shall be based on either the true or NAD 83 grid meridian. If a Global Positioning System (GPS) is used to determine the latitude and longitude of the horizontal control monument, a GPS receiver that has the capability to perform differential GPS shall be used and all data collected by the GPS receiver will be differentially corrected. The maps and any supporting documentation shall be sent to the Groundwater Section, N.C. Division of Water Quality P.O. Box 29578 Raleigh, N.C. 27626-0578. The new monitor wells (MW-11, MW-12, MW-13 and MW-14), shall be sampled initially after construction and thereafter with existing monitor wells MW-2, MW-4, MW-8 and MW-9 every February, June and September for the following parameters: Nitrate (NO3) Total Ammonia Total Dissolved Solids (TDS) Total Organic Carbon (TOC)' pH Water Level Chloride Fecal Coliforms Total Phosphorus Volatile Organic Compounds - In September only using one of the following methods: a. Standard Method 6230D, PQL at 0.5 go or less b. Standard Method 6210D, PQL at 0.5 go or less C. EPA Method 8021, Low Concentration, PQL at 0.5 pg/1 or less d. EPA Method 8260, Low Concentration, PQL at 0.5 µg/1 or less e. Another method with prior approval by the Groundwater Section Chief Any method used listed above must meet the following qualifications: I. A Iaboratory must be DWQ certified to run any method used. 2. The method used must, at a minimum, include all the constituents listed in Table VI I of Standard Method 6230D. 3. The method used must provide a PQL of 0.5 jug/1 or less which 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 or 0.5 µg/1 must be qualified (estimated) and reported. The measurement of water levels 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 be surveyed to provide the relative elevation of the measuring point for each monitoring well. 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. If any volatile organic compounds are detected by the methods listed above then the Washington Regional Office Groundwater Supervisor, telephone number 919-946-6481, must be contacted immediately for further instructions regarding any additional follow-up analyses required. The results of all initial and follow-up analyses must be submitted simultaneously. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on Form OW-59 [Compliance Monitoring Report Form] on or before the last working day of the month following the sampling month. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 10. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is for the disposal system constructed after December 31, 1983 is established at either (1) 250 feet from the waste disposal area, or (2) 50 feet within the property boundary, whichever is closest to the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond the Compliance Boundary is subject to immediate remediation action in addition to the penalty provisions applicable under General Statute 143- 215.6A(a)(1). In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the disposal systems midway between the Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of standards at the Review Boundary shall require remediation action on the part of the permittee. V. INSPECTIONS 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 maintain 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 years from the date of the inspection and shall be made available to the Division of Water Quality or other permitting authority, upon request. 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 or facility at any reasonable time for the purpose of determining compliance with this permit, may inspect or copy any records that must be maintained under the terms and conditions of this permit, and may obtain samples of groundwater, surface water, or leachate. VI. GENERAL CONDITIONS I . This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and 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 of Water Quality 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. Prior to a transfer of this land to a new owner, a notice shall be given to the new owner that gives full details of the materials applied or incorporated at this site. 5. The annual administering and compliance fee must be paid by the Pernttee 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 15A NCAC 2H .0205 (c)(4). 6. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Water Quality in accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c). 7. 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. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of this project. 9. The Permittee, 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 and under such conditions and limitations as it may deem appropriate. Permit issued this the Twenty -Fourth day of January, 2002 NORTH OLINA E IR NMENTAL MANAGEMENT COMMISSION Gregory J. Thorpe, Ph.D., Acting Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0002829 Permit No. WQ0002829 January 24, 2002 ENGINEER'S CERTIFICATION 1, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, Project Name Location for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of this permit, the approved plans and specifications, and other supporting materials. Signature Date Registration No.