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HomeMy WebLinkAboutWQ0013348_Final Permit_19970716State of North Carolina Department of Environment, Health and Natural Resources • Division of Water Quality James i3. Hunt, Jr., Governor Jonathan B. Howes, Secretary [D E H N FR A. Preston Howard, Jr., P.E., Director July 16, 1997 Mr. James Krauss, Superintendent Bay River Metropolitan Sewer District PO Box 758 Bayboro, NC 28515 SUBJECT: Bay River MSD Permit No. WQ0013348 Pamlico County Regional Wastewater Spray Irrigation Facilities Project No. E-SRG-T-95-0028 Pamlico County Dear Mr. Krauss: In accordance with your application received January 10, 1997, we are forwarding herewith Permit No. WQ0013348 dated July 16, 1997, to the Bay River Metropolitan Sewer District for the construction and operation of the subject wastewater treatment and spray irrigation facilities. This permit shall be effective from the date of issuance until June 30, 2002, and shall be subject to the conditions and limitations as specified therein. 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, P. O. Box 27447, Raleigh, N. C. 27611-7447. Unless such demands are made, this permit shall be final and binding. One (1) set of final approved plans and specifications is to be forwarded to you, one (1) set retained for our files. Construction Grants & Loans Section aFAX 919-715-6229 P.O. Box 29579, Raleigh, North Carolina 27626-0579N%)C An Equal Opportunity/Affirmaiive Action Employer Voice 919-733-6900 50% recycles/10% post -consumer paper A copy of the approved plans and specifications shall be maintained on file by the Owner for the life of the project. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with the approved plans and specifications. Mail the Certification to the Permits and Engineering Unit, P. O. Box 29535, Raleigh, North Carolina 27626-0535. (Engineer's Certification Form is attached.) If there are any questions concerning this matter, please contact Mr. Cecil G. Madden, Jr., P. E. at (919) 715-6203. Sincerely, �. Prest4nd�, Jr., P.E. Attachment RT:pe cc: McKim & Creed, Cary Pamlico County Health Department Washington Regional Office, Water Quality Washington Regional Office, Groundwater Don Safrit Groundwater Section, David Goodrich Facilities Assessment Unit Robert Teulings Don Evans Training and Certification Unit CIU DMU SRG NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH SPRAY IRRIGATION 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 Bay River Metropolitan Sewer District Pamlico County construction and operation of a 0.5 MGD regional wastewater spray irrigation facility consisting of a 22.5 MG capacity storage lagoon with a low -permeability compacted clay bottom and soil dikes lined on the inside slopes with a polypropylene geomembrane liner; chlorine disinfection facilities; a 100,000 gallon covered concrete flow equalization tank with odor control system; irrigation pumping station with three (3) vertical turbine pumps, flow metering equipment, and standby generator; approximately 23,500 linear feet of 8-inch and 12- inch force mains for effluent distribution to ten (10) irrigation zones with a total wetted area of 137 acres; approximately 143,700 linear feet of 3-inch and 6-inch diameter aluminum irrigation laterals installed above ground to 3,260 sprinkler heads on 3 - ft. risers; telemetric alarm system for pump monitoring, and all associated appurtenances to serve Bay River Metropolitan Sewer District and Pamlico County with no discharge of wastes to surface waters, pursuant to the application received January 10, 1997, and in conformity with the project plans, 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 June 30, 2002, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications. Mail the Certification to the Permits and Engineering Unit, P. O. Box 27687, Raleigh, NC 27611. 2. The Washington Regional Office, phone no. (919)946-6481, shall be notified at least forty-eight (48) 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 normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 3. 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 ground waters which will render them 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 absorb the wastewater, the Permittee shall take immediate action to correct the problem, including such actions as may be required by the Division of Water Quality. 4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to ground water or surface water resulting from the operation of this facility. 5. The sludge 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. 6. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 7. The following buffers shall be maintained: a) 400 feet between wetted area and any residence under separate ownership, b) 150 feet between wetted area and property lines, c) 100 feet between wetted area and wells, d) 100 feet between wetted area and drainage ways or surface water bodies, e) 50 feet between wetted area and public right of ways, f) 100 feet between wastewater treatment units and wells, g) 50 feet between wastewater treatment units and property lines. 11. OPERATION AND MAINTENANCE REQUIREMENTS 1. 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. Once the facility is classified, the Permittee must submit a letter to the Certification Commission which designates the operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete. 3. A suitable vegetative cover over the spray field shall be maintained. The annual nutrient assimilation capacity of the cover crop shall not be exceeded. 4. Irrigation shall not be performed during inclement weather or when the ground is in a condition that will cause runoff. 5. Adequate measures shall be taken to prevent wastewater runoff from the spray field. 6. 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. 7. The application rate on Spray Fields 1-7 shall not exceed a cumulative loading of 68.3 inches over any twelve (12) month period at an instantaneous rate not to . - exceed 0.5 inches per hour. The application rate on Spray Fields 8-10 shall not exceed a cumulative loading of 16.8 inches over any twelve (12) month period at an instantaneous rate not to exceed 0.2 inches per hour. 8. No type of wastewater other than that from the Pamlico County sewer system shall be sprayed onto the irrigation area. 9. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 10. 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. 11. Freeboard in the effluent storage lagoon shall not be less than two feet at any time. 1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses) 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. 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, e) continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field, f) weather conditions, and g) maintenance of cover crops. 3. The effluent from the subject facilities shall be monitored by the Permittee at the point prior to irrigation every month for the following parameters: BODS TSS Fecal Coliform NH3 as N pH 4. In a manner satisfactory to the Washington Regional Office, air entering and leaving the odor control system at the equalization tank at the spray irrigation site shall be monitored weekly by the Permittee for hydrogen sulfide after commencement of irrigation operations. If, after a six (6) month trial period, the odor control system is deemed to be functioning satisfactorily, hydrogen sulfide monitoring may be stopped with the concurrence of the Washington Regional Office 5. Three (3) copies of all operation and disposal records (as specified in condition III 2) and the wastewater and odor control monitoring data as specified in conditions III 3 and 1114, and any other data as may be required, shall be submitted monthly within thirty (30) days of the end of each reporting period to the following address: NC Division of Water Quality Water Quality Section Facility Assessment Unit P. O. Sox 29535 Raleigh, NC 27626-0535 6. NONCOMPLIANCE NOTIFICATION: The Permittee shall report by telephone to the Washington Regional Office, telephone no. (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 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 render 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 fifteen (15) 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 1. At the spray irrigation site, six (6) monitoring wells, designated as MW-1, MW-2, MW-3, MW-4, MW-5, and MW-6, shall be installed to monitor groundwater quality. The general location and name for each well is marked on Attachment A. At the storage lagoon site, prior to beginning waste disposal operations, four(4) new monitor wells, designated as MW-8, MW-10, MW-11 and MW-12, shall be installed to monitor groundwater quality. The general location and name for each well is marked on Attachment B. For monitoring purposes, the two monitor wells which already exist at the storage lagoon site shall be designated as MW-7 and MW-9, as marked on Attachment B. The wells at both sites shall be constructed such that the water level in each well is never above or below the screened (open) portion of the well at any time during the year. Each monitoring well shall be constructed in accordance with this permit and approved by the Washington Regional Office. 2. Monitor wells MW-1, MW-2, MW-3, MW4, MW-5, and MW-6 at the spray irrigation site and monitor wells MW-7, MW-8, MW-9, MW-10, MW-11, and MW-12 at the storage Iagoon site shall be sampled initially (after construction of the new wells is complete, and prior to the operation of the system.) All twelve (12) monitor wells shall be sampled every March, July, and November for the following parameters: NO3 TDS Ammonia Nitrogen pH TOC Chloride Water Level Fecal Coliforms Volatile Organic Compounds (in November only) For VOCs: Method 6230D (Capillary - Column), "Standard Methods For The Examination of Water and Wastewater", 17th ed., 1989. 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. 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. 4. If TOC concentrations greater than 10 mg/1 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. 5. If any volatile organic compounds are detected by Method 6230D, 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. 6. One copy of the results of the sampling and analysis must be received by the Groundwater Section, Permits and Compliance Unit, P.O. Box 29578, Raleigh, NC 27626-0578 and one copy shall be sent to the Washington Regional Office address, 1424 Carolina Avenue, Washington, NC 27889, on or before the last working day of the month following the sampling month. 7. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 8. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for a 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 closet 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. 10. The Washington Regional Office, 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 locations. 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. 11. 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 land surveyor that indicates all of the following information: a. the location and identity of each monitoring well b. the location of all components of the waste disposal system C. the location of all property boundaries d. the latitude and longitude 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. This 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 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. 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 will be differentially corrected. The maps and any supporting documentation shall be sent to the Groundwater Section, NC Division of Water Quality, PO Box 29578, Raleigh, NC 29626-0578. 12. Within thirty (30) 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, PO Box 295678, Raleigh, NC 27626- 0578. 13. 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 143-125.6. 14. The monitor wells must have identification plates and locks securing the wells against unauthorized access and use in -accordance with 15 A NCAC 2C.0108. 15. The bottom of the storage lagoon shall have a liner of natural material at least one foot in thickness, compacted to 95% proctor standard dry density, with a hydraulic conductivity of no greater than 1 X 10' cm/sec. Following installation and inspection of the lagoon Iiner, and prior to waste disposal operation, verification of the liner's compliance with hydraulic conductivity and thickness specifications must be provided to the Division of Water Quality, Groundwater Section, by the project engineer. 16. The interior surfaces of the storage lagoon dikes shall be completely lined with a 40-mil thick geomembrane liner. Following installation and inspection of the dike liner, and prior to waste disposal operations, certification of the liner's compliance with approved construction specifications and the liner's integrity must be provided to the Division of Water Quality, Groundwater Section, by the project engineer. 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. 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 Pernittee, 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. Failure to abide by the conditions and limitations contained in the 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. 5. 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(c)(4). 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 under such conditions and limitations as it may deem appropriate. Permit issued this the 16th day of July 1997. /-NORTq C OLINA ENVIRONMENTAL MANAGEMENT COMMISSION �C � 1 A� Preston How a , Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit No. WQ0013348 Date July 16, 1997 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 or Location) for the hereby state that, to the best of my (Project Owner) abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Date Permit No. Registration No. �;•�r �: i �i ,.J�tl�����k,��, srl��llei� lt,��lllo�.•s ��el�e�� Ail ' 3��Ll�11 Rf11YE f. i.1Lod► r;. 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NEW IT 14I Locar�oni of J1ew Monitor EXIS $ ING- EX15TING FENCE LINE CL\ORDINATE 9TAKEOIrr NQ NQN74tyl [li T(x) Esc," c" FIGURE 2 Nfw 37.5 BAY RrV5 �iRDPGLITAt1 SEWER DISTRICT fl �i usN GAiieir c'a NAL�TA fl•Y trSGwp FAMLICO COUNTY E-SRf--T-95-0031/GW96174