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HomeMy WebLinkAboutWQ0002951_Final Permit_19910328State of North Carolina, Department of Environment, Health and Natural Resources Division of Environmental Management 512 North Salisbury Street - Raleigh, North Carolina 27611 Iames G. Martin, Governor William W. Cobey, Jr., Secretary Mr. John C. McKnight, Assistant Superintendent Pitt County Board of Education 1717 West Fifth Street Greenville, North Carolina 27834 Dear Mr. McKnight: George T. Everett, Ph.D. Director March 28, 1991 Subject: Permit No. WQ0002951 Pitt County Board of Education Falkland Elementary School Wastewater Treatment System Pitt County Upon further review of your application received January 12, 1990, and your subsequent request for permit modification received October 1, 1990, we are forwarding herewith Permit No. WQ0002951, dated March 28, 1991, to Pitt County Board of Education for the construction and operation of the subject wastewater treatment facilities. This amendment is to indicate a change in the wastewater treatment facility's design flow from 6,000 GPD to 7,200 GPD. This permit shall be effective from the date of issuance until April 30, 1995, 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. Issuance of this permit hereby voids Permit No. WQ0002951 issued May 14, 1990. If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150E of North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you need additional information concerning this matter, please contact Mr. John Seymour at 9191733-5083. cc: Pitt County Health Department Washington Regional Office Ellinwood Design Associates, Ltd. Groundwater Section Sincerely, kE George . Everett 1 Pollution Prevention Pays P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-7015 An Equal opportunity Affirmative Action Employer *I, NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH SUBSURFACE DISPOSAL 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 Pitt County Board of Education Pitt County FOR THE construction and operation of a 7,200 GPD subsurface low pressure pipe wastewater treatment and disposal system consisting of an existing 1,500 gallon grease trap, a 4,000 gallon septic tank and connecting 3,000 gallon septic tank, a 4,000 gallon gallon pump tank with dual 72 GPM pumps and high water alarms, 770 linear feet of 3 -inch force main, 72,800 square feet of low pressure piping distribution fields with zone controls and an approved perimeter ditch, and all related piping, valves, solenoids and appurtenances to serve Falkland Elementary School with no discharge of wastes to the surface waters, pursuant to the application received January 12, 1990 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 April 30, 1995, and shall be subject to the following specified conditions and limitations: PERFORMANCE STANDARDS 1. 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 27611.7687. 2. The Washington Regional Office, phone no. 919/ 946-6481, shall be notified at least forty-eight (48) hours in advance of backfilling 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. 3. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as construction of additional or replacement wastewater treatment or disposal facilities. 4. 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. LIM 5. This permit shall become voidable if the soils fail to adequately absorb 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. 6. Adequate measures shall be taken to divert stormwater from the disposal area and prevent wastewater runoff from the subsurface disposal field. 7. 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 Environmental Management. 8. A usable reserve area shall be maintained for wastewater disposal. The reserve area shall have the capability of accommodating the average daily flow of the facility being served without exceeding the loading rates of the reserve area while meeting all required buffer requirements. 9. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 10. The following buffers shall be maintained: a) 100 feet between disposal area and any public or private water supply including wells b) 100 feet between disposal area and "SA and SB" classified surface waters c) 50 feet between disposal area and any stream, lake, river or natural drainageway d) 50 feet between disposal area and property lines e) 10 feet between disposal area and surface water interceptor drains or diversions (upslope) f) 25 feet between disposal area and surface water interceptor drains or diversions (downslope) and groundwater drainage systems. 11. A leakage test shall be performed on the septic tank and dosing tank to insure that any exfiltration occurs at a rate which does not exceed twenty (20) gallons per twenty-four (24) hour per 1,000 gallons of tank capacity. The engineer's certification will serve as proof of compliance with this condition. II. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. 2. The Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge of the wastewater treatment facilities. The operator must hold a certificate of the grade at least equivalent to the classification assigned to the wastewater treatment facilities by the Certification Commission. Within thirty days after the wastewater treatment facilities are 50% complete, the Permittee must submit a letter to the Certification Commission which designates the operator in responsible charge. 3. The application rates to the disposal field shall not exceed 0.1 gal/ sq. ft./ day. 4. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wast water resulting from the operation of this facility. 2 5. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 6. A suitable cover shall be maintained on the LPP field(s) and the field(s) shall be kept mowed. The clippings shall be removed to prevent the build up of thatch. 7. The low pressure lines shall be purged monthly using potable water or air pressure and the pressure adjusted on the distribution lines to approved specifications. MONITORING AND REPORTING REQUIREMENTS 1. Any monitoring deemed necessary by the Division of Environmental Management to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. Adequate records showing all maintenance shall be,maintained by the Permittee. These records should include but are not limited to the following: items Inspection Frequency a) Individual dosing pump operation Weekly b) Individual field rotation Weekly c) High water alarms Weekly d) Residual pressure on highest and lowest lateral on each subfield Monthly e) Residual pressure on all laterals Semi-annually 4. Three copies of all operation and maintenance records (as specified in condition In 2) and all effluent monitoring data (as specified in condition III 3) shall be submitted on or before January 31 of the following year to the following address: NC Division of Environmental Management Water Quality Section Facility Assessment Unit PO Box 27687 Raleigh, NC 27611-7687 5. A record shall be maintained of all sludge removed from this facility. This record shall 'include the name of the hauler, permit authorizing the disposal or a letter from a municipality agreeing to accept the sludge, date the sludge was hauled, and volume of sludge removed. 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 basin or tank; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. 3 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 or 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 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 reoccur. IV. GROUNDWATER REQUIREMENTS. 1. Any additional groundwater quality monitoring as deemed necessary by the Division of Environmental Management shall be provided. 2. Prior to beginning waste disposal operations, three (3) monitor wells, one (1) upgradient and two (2) downgradient, must be installed to monitor groundwater quality.The wells 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 location and construction details for these wells must be approved by the Washington Regional Office, from which a well construction permit must be obtained. 3. The monitor wells must be sampled initially after construction. (and prior to waste disposal operations) and thereafter every March, July, and October for the following parameters: NO3 (10.0) Ammonia Nitrogen TDS (500.0) TOC PH (6.5-8.5 standard units) Water Level Chloride (250.0) Total Coliforms (1/100m1) Fecal Coliforms Volatile Organic Compounds - In October Only (by method 1 or 2 below) Method 1 Method 6230D (Capillary - Column), "Standard Methods For The Examination of Water and Wastewater", 17th ed., 1989 Method 2 ; Method 502.2 "Methods For The Determination Of Organic Compounds In Drinking Water", U.S. EPA - 600/ 4-88/ 039 The measurement of water level must be made prior to sampling for the remaining parameters. If any volatile organic compounds are detected by method 6230D, or the equivalent method 502.2, then EPA methods 604 and 611 must also be run to detect other organic compounds which may be present. The results of all analyses specified in the monitoring requirements, including 604 and 611 if required, must be submitted simultaneously. 0 The measuring points (top of well casing) of all monitoring wells shall be surveyed relative to mean sea level (M.S.L.). The depth of water in each well shall be measured from the surveyed point on the top of the casing. The water level elevations shall then be determined relative to M.S.L.. 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. The numbers in parentheses represent the maximum allowable concentrations in groundwater for the various analytical parameters, as specified in 15 NCAC 2L [Groundwater Classifications and Standards]. Unless otherwise noted, the concentrations are given in parts per million. The results of the sampling and analysis shall be sent to the N.C. Division of Environmental Management on Form GW -59 (Compliance Monitoring Report Form) every April, August, and November. 4. The Compliance Boundary for the disposal system is specified by regulations in 15 NCAC 2L, Classifications and Water Quality Standards applicable to the groundwater of North Carolina. An exceedance of Groundwater Quality Standards beyond the Compliance Boundary is subject to penalty provisions applicable under General Statute 143-215.6(1)a. The sale of property, by the Permittee, which is within or contiguous to the disposal system site may alter location of the Compliance Boundary. For facilities permitted on or after December 30, 1983, the Compliance Boundary is established at the lesser of 250 feet from the perimeter of the waste disposal area, or 50 feet within the property boundary. If the title to any property which may affect the location of the Compliance Boundary is changed, the permittee shall notify the Division Director within 14 days. The Director shall then establish a modified Compliance Boundary which will be done as a modification to the Pern7it. The REVIEW BOUNDARY for the disposal system is specified by regulations in 15 NCAC 2L, Groundwater Classifications and Standards. A REVIEW BOUNDARY is established around disposal systems midway between the Compliance Boundary and the perimeter of the waste disposal area. When the concentration of any substance equals or exceeds the maximum allowable concentration of that substance at the REVIEW BOUNDARY, as determined by monitoring, the permittee shall either (i) demonstrate, through predictive calculations or modeling, that natural site conditions, facility design and operational controls will prevent a violation of standards at the Compliance Boundary; or, (ii) submit a plan for the alteration of existing site conditions, facility design or operational controls that will prevent a violation of standards at the Compliance Boundary, and implement that plan upon its approval by the Director. 5. Oil drained from engine crankcases or degreasing solvents wastes shall not be discharged into the disposal system. 6. No land application of waste activities shall be undertaken when the seasonal high water table is less than three feet below land surface. V. INSPECTIONS 1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to insure proper operation of the subject facilities. 2. The Pen-nittee 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 years from the date of the inspection and shall be made available upon request to the Division of Environmental Management or other permitting authority. 3. Any duly authorized officer, employee, or representative of the Division of Environmental Management 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 CONDMONS 1. 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 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 Environmental Management 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 any transfer of this land, a notice shall be given to the new owner that gives full details of the materials applied or incorporated at this site. 5. A set of approved plans and specifications for the subject project must be retained by the applicant for the life of the project. 6. 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). E 7. Failure to abide by the conditions and limitations contained in this pen -nit may subject the Permittee to an enforcement action by the Division of Environmental Management in accordance with North Carolina General Statute 143-215.6. 8. The wastewater treatment facility shall connect to a publicly owned areawide sewage collection system within 180 days of its availability. All discharge of wastewater to the system shall cease at the time of the connection to the sewerage collection system. 9. 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. 10. 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. 11. The proposed perimeter ditch shall be approved by Washington Regional Office prior to use of the new Wastewater Treatment System. 12. Issuance of this permit hereby voids Permit No. WQ0002951 issued May 14, 1990. Permit issued this the 28th day of March, 1991 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION L4, k0,TNC,J,,jL-A.'91 George T. Ev rett, Director Division of E' vironmental Management By Authority of the Environmental Management Commission F Permit No. WQ0002951 March 28, 1991 Engineer's Certification I, , 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 the approved plans and specifications. Signature Date G; Registration No.