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HomeMy WebLinkAboutWQ0023896_Final Permit_20061006o�0F W a rERQG Michael F. Easley, Governor William G. Ross Jr., Secretary r North Carolina Department of Environment and Natural Resources 5; b - nU Alan W. Klimek, P.E. Director Division of Water Quality October 6, 2006 David R. Perry Interim Vice Chancellor for Finance and Administration The University of NC at Chapel Hill CB#1000, 302A South Building Chapel Hill, NC 27599-1000 Subject: Permit No. WQ0023896 Research Resources Facility Wastewater Surface Irrigation Orange County Dear Mr. Perry: In accordance with your permit modification request received September 19, 2006, we are forwarding herewith Permit No. WQ0023896, dated October 6, 2006, to the University of North Carolina at Chapel Hill for the construction and continued operation of the subject wastewater treatment and surface irrigation facilities. This permit shall be effective from the date of issuance until September 30, 2011, shall void Permit No. WQ0023896 issued December 17, 2004, 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. This permit approves the continued operation of the subject wastewater treatment and spray irrigation facilities for another five-year cycle. However, please take the time to review this permit thoroughly as some of the conditions contained therein may have been added or changed since the last CP issuance of this permit. Of special interest are the following: Condition IV.2.d — Note that a scaled map of the site shall be submitted to the Department within 90 days of issuance of this permit. 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. Unless such demands are made this permit shall be final and binding. If you need additional information concerning this matter, please contact Matthew Fleahman at (919) 715-6173. Since L -Alan W. Klimek, P.E. .One Carolina ilydly Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Phone (919) 733-3221 Customer Service Internet; h2o.ennstate.ne.us 2728 Capital Boulevard Raleigh, NC 27604 FAX (919) 715-6048 1-877-623-6748 An Equal OpporiunitylAffinaiive Action Employer- 50% Recycled110% Post Consumer Paper cc: Orange County Health Department Raleigh Regional Office, Aquifer Protection Section John F. Phillips, P.E. — Diehl & Phillips, P.A. Technical Assistance and Certification Unit APS Central Files LAU Files NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH SURFACE 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 University of North Carolina at Chapel Hill Orange County continued operation of a 2,340 GPD surface irrigation treatment and disposal facility consisting of a 12,000 gallon cast in place concrete septic tank, a dosing tank, a gravity distribution box, an intermittent sand filter bed, a five foot diameter wet well that housed a duplex, float operated, submersible pump system, a 100,000 gallon irrigation storage pond, 2.18 acres of spray field composed of 16 sprinkler heads in one zone, construction of approximately 350 linear feet of 6-inch lateral piping and all associated valves and appurtenances to connect the proposed kennel facility to the 12,000 gallon septic tank, to serve UNC-Research Resources Facilities, with no discharge of wastes to the surface waters, pursuant to the application received September 19, 2006, and subsequent additional information received by the Division, and in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until September 30, 2011, shall void Permit No. WQ0023896 issued December 17, 2004, 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, and other supporting materials. If this project is to be completed in phases and partially certified, you shall retain the responsibility to track further construction approved under the same permit, and shall provide a final certificate of completion once the entire project has been completed. Mail the Certification to the Land Application Unit, Division of Water Quality, 1636 Mail Service Center, Raleigh, NC 27699-1636. 2. The Raleigh Regional Office, telephone number (919) 791-4200, 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 the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. The surface 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 assimilate the wastewater, the Permittee shall take immediate corrective actions including those actions that may be required by the Division of Water Quality, such as the construction of additional or replacement wastewater treatment and 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. 5. The residuals generated from these treatment facilities must be disposed in accordance with General Statute 143-215.1 and in a manner approved by the Division. 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 or places of public assembly 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 treatment/storage units and any wells, and g) 50 feet between treatment units and property lines. Some of the buffers specified above may not have been included in previous permits for this waste treatment and disposal system. These buffers are not intended to prohibit or prevent modifications, which are required by the Division, to improve performance of the existing treatment facility. These buffers do, however, apply to modifications of the treatment and disposal facilities that are for the purpose of increasing the flow that is tributary to the facility. These buffers do apply to any expansion or modification of the irrigation areas and apply in instances in which the sale of property would cause any of the buffers now complied with, for the treatment and disposal facilities, to be violated. The applicant is advised that any modifications to the existing facilities will require a permit modification. H. OPERATION AND MALNTENANCE REOUMEMENTS Upon classification of the wastewater treatment and irrigation facilities by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate and employ a certified operator to be in responsible charge (ORC) and one or more certified operator(s) to be back-up ORC(s) of the facilities in accordance with 15A NCAC 8G .0201. The ORC shall visit the facilities in accordance with 15A NCAC 8G .0204 or as specified in this permit and shall comply with all other conditions specified in these rules. 2. The facilities shall be properly maintained and operated at all times. 3. A suitable year round vegetative cover shall be maintained. 4, Irrigation shall not be performed during inclement weather or when the ground is in a condition that will cause runoff, 2 5. Adequate measures shall betaken to prevent wastewater runoff from the irrigation 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 shall not exceed a cumulative loading of 24-09 inches over any twelve (12) month period at an instantaneous application rate not to exceed 0.75 inches per hour. 8. No type of wastewater other than that from UNC Research Resources Facilities shall be irrigated 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 may include the posting of signs showing the activities being conducted at each site. 11. Freeboard in the storage pond shall not be less than two feet at any time. 12. A protective vegetative cover shall be established and maintained on all earthen basin embankments (outside toe of embankment to maximum pumping elevation), berms, pipe runs, erosion control areas, and surface water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow on the earthen basin dikes or embankments. Earthen basin embankment areas shall be kept mowed or otherwise controlled and accessible. III. MONITORING AND REPORTING REQUIREMENTS Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed necessary by the Division to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. Influent flow shall be continuously monitored and daily average flow values shall be reported on Form NDMR. Flow may be estimated from water use records provided water use is metered. Daily average values shall be calculated by dividing monthly flow volume by the number of days in the month. 3. The effluent from the subject facilities shall be monitored by the Permittee at the point prior to irrigation every March, July and November for the following parameters: NH3 as N NO2-NO3 Total Coliform BOD5 TKN Total Phosphorous TSS Sodium Magnesium H Calcium Sodium Adsorption Ratio by Calculation 4. The Permittee tracking the amount of wastewater disposed shall maintain adequate records. 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. 5. Freeboard in the storage lagoon shall be recorded weekly. 3 6. Three (3) copies of all monitoring data [as specified in Conditions 111(2) and III(3)] on Form NDMR- I and three (3) copies of all operation and disposal records [as specified in Conditions M(4) and III(5)] on Form NDAR-1 shall be submitted on or before the last day of the following month. All information shall be submitted to the following address: Division of Water Quality Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 7. An annual representative soils analysis (Standard Soil Fertility Analysis) shall be conducted on each irrigation field and the results maintained on file by the Permittee for a minimum of five years. The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following parameters: Acidity Manganese Potassium Calcium Percent Humic Matter Sodium Copper pH Zinc Magnesium Base Saturation (by calculation) Phosphorus Cation Exchange Capacity Exchangeable Sodium Percentage 8. Noncompliance Notification: The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 791- 4200, 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. c. 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 indicatess that the facility has gone out of compliance with its permit limitations. Occurrences outside normal business hours may also be reported to the Division's Emergency Response personnel at telephone number (800) 662-7956, (800) 858-0368, or (919) 733-3300. Persons reporting such occurrences by telephone shall also file a written report in letter form within five (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 1. Sampling Criteria: a. Monitor wells MW-1 and MW-2 shall be sampled every March, July, and November for the parameters listed below. Prior to sampling the parameters, the measurement of water levels must be taken. The depth to water in each well shall be measured from the surveyed point on the top of 4 the casing. The measuring points (top of well casing) of all monitoring wells shall be surveyed relative to a common datum. Total Ammonia Nitrogen (NH3-N) Total Dissolved Solids (TDS) Fecal Coliforms Total Phosphorous Water Level Nitrate Nitrogen (NO3-N) Total Organic Carbon (TOC) Chloride pH b. 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 exceedances of this naturally occurring TOC concentration in the down -gradient wells shall be subject to the additional sampling and analysis as described above. c. Any laboratory selected to analyze parameters must be Division of Water Quality (DWQ) certified for those parameters required. 2. Reporting / Documentation: a. All reports and documentation (GW-1, GW-30, GW-59) shall be mailed to the following address: Division of Water Quality 1617 Mail Service Center Attn: Information Processing Unit Raleigh, North Carolina 27699-1617 Updated blank forms (GW-1, GW-30, GW-59) may be downloaded from the Groundwater Section's website at http://gw.ehnr.state.nc.us/ or requested from the address mentioned above. b. 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. c. Within ninety (90) days of the issuance of this permit, the permittee shall submit two original copies of a scaled site map (scale no greater than 1"=100'); however, special provisions may be granted upon prior approval for large properties. The map(s) must include the following information: 1) The location and identity of each monitoring well. 2) The location of major components of the waste disposal system. 3) The location of property boundaries within 500 feet of the disposal area(s). 4) The latitude and longitude of the established horizontal control monument. 5) The elevation of the top of the well casing (which shall be known as the "measuring point") relative to a common datum. 6) The depth of water below the measuring point at the time the measuring point is established. 7) The location of Review and Compliance boundaries. 8) 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. The permittee is responsible for the geographic accuracy of any map submitted, however produced. 3. Vertical Separation Requirements: Industrial waste shall not be applied or discharged onto or below the land surface when the vertical separation between the waste and the seasonal high water table is less than three (3) feet, unless the permittee has demonstrated to the Director or his delegate, by using predictive calculations or modeling methods acceptable to the Director or his delegate, that such placement will not result in the contravention of classified groundwater standards. 4. Applicable Boundaries: a. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for the disposal system individually permitted on or after December 30, 1983 is established at either 250 feet from the waste disposal area, or 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 remediation action according to 15A NCAC 2L .0106(d)(2). b. The 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 action in accordance with 15A NCAC 2L .0106(d)(1). 5. Additional Requirements: 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 Pernuttee. 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 or other permitting authority. 3. Any duly authorized officer, employee, or representative of the Division 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 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 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 this 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. 5. The issuance of this permit does not exempt the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction, including but not limited to applicable river buffer rules in 15A NCAC 2B .0200, erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under the Division's General Permit NCG010000, and any requirements pertaining to wetlands under 15A NCAC 2B .0200 and 2H .0500. 6. The Permittee shall retain a set of approved plans and specifications for the life of the project. The Permittee must pay the annual administering and compliance fee 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). 8. 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 6th day of October, 2006 NORTH C 7LINAENYMONMENTAL MANAGEMENT COMMISSION C. Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0023896 Permit No. WQ0023896 October 6, 2006 ENGINEER'S CERTIFICATION Partial Final 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 and County 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.