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HomeMy WebLinkAboutWQ0006085_Final Permit_19970707State of North Carolina Department of Environment, Health and Natural Resources Division of Water Quality James B. Hunt, Jr., Govemor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director July 7, 1997 Ms. Betty S. Williamson, Mayor Town of Ocean Isle Beach 3 West Third Street Ocean Isle Beach, North Carolina 28469 Dear Ms. Williamson: IT - ilk ED,EHNR Subject: Permit No. WQ0006085 Town of Ocean Isle Beach Wastewater Spray Irrigation Brunswick County In accordance with your Notice of Withdrawal of Petition received on June 6, 1997, we are forwarding herewith Permit No. WQ0006085, dated July 7, 1997, to the Town of Ocean Isle Beach for the continued operation of the subject wastewater treatment and spray irrigation facilities. The main concern outlined in your "petition" was that you could not operate in compliance with your permit containing the condition which states "No land application of waste activities shall be undertaken when the seasonal high water table is less than three (3) feet below the land surface." The intent of the condition is to prohibit the spray irrigation of wastewater onto the land when the actual water table is less than three (3) feet below the land surface, not when evidence of a seasonal high water table is present within three (3) feet of the land surface. This permit shall be effective from the date of issuance until December 31, 2001, shall void Permit No. WQ0006085 issued January 10, 1997, and shall be subject to the conditions and limitations as specified therein. PIease 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 you need additional information concerning this matter, please contact Rick Moore at (919) 733- 5083 extension 527. Sine r 7 . Preston Howard, Jr., P.E. cc: Fairley, Jess and Isenberg; Miss Elva Jess Boney and Associates; Mr. Robert Graham, P.E. Attorney General's Office; Ms. Anita Quigless P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone (919) 733-5083 FAX (919) 733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES 17i90[" 91 I 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 Town of Ocean Isle Beach Brunswick County I-01IM16810 continued operation of a 0.750 GPD spray irrigation treatment and disposal facility consisting of a manual influent bar screen, dual 3 foot by 15 foot grit chambers, influent flow recorder, a 4.68 MG primary lagoon, 2, 7.125 MG secondary lagoons, a 15,625 gas chlorination unit and chlorine contact chamber, a 0.25 MG storage basin, a dual 400 GPM pump dosing station with high water alarms and alternate power, a recording flow recorder, a 22.5 MG lined storage lagoon, and a 110 acre spray field equipped with 666 sprinklers, each having a 56 foot radius, to serve the Town of Ocean Isle Beach, with no discharge of wastes to the surface waters, pursuant to the application received September 13, 1996, 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 December 31, 2001, shall void Permit No. WQ0006085, issued January 10, 1997, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS I . 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 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. 2. 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. . 3. 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 North Carolina Division of Water Quality. 4. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 5. 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 drainageways or surface water bodies, e) 50 feet between wetted area and public right of ways, f) 100 feet between wastewater treatment units and wells, and g) 50 feet between wastewater 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 which 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 spray 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. 6. The subject wastewater treatment facility has been approved for a treatment capacity of 1.0 MGD. Upon the availability of additional spray irrigation fields, the Town of Ocean Isle Beach may apply to the Division for a modification to this permit for an additional 0.25 MGD approval. II. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times 2. Upon classification of the facility by the 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 Ieast 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. 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. 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 annual application rate shall not exceed 91 inches per acre. The instantaneous rate of application shall not be such that it causes ponding or wastewater runoff. 2 8. No type of wastewater other than that from the Town of Ocean Isle Beach 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 may include the posting of signs showing the activities being conducted at each site. 11. Freeboard in the primary lagoon, 2 secondary lagoons and the storage lagoon shall not be less than two feet at any time. III. MONITORING AND REPORTING REQUIREMENTS 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 March, July and November for the following parameters: BOD5 TSS Fecal Coliform pH NH3 as N 4. Three (3) copies of all operation and disposal records (as specified in condition II12) on Form NDAR-I shall be submitted on or before the last day of the following month. Three (3) copies of all effluent monitoring data (as specified in condition 1113) on Form NDMR-1 shall be submitted on or before the last day of April, August and December . All information shall be submitted to the following address: NC Division of Water Quality Water Quality Section Facility Assessment Unit PO Box 29535 Raleigh, NC 27626-0535 5. Noncompliance Notification: The Permittee shall report by telephone to the Wilmington Regional Office, telephone number (910)395-3900 as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: 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 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 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; or d. Any time that self -monitoring information indicates that the facility has gone out of compliance with its permit limitations. Persons reporting such occurrences by telephone shall also file a written report in letter form within five (5) days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. IV. GROUNDWATER_ REQUIREMENTS The permittee shall, within 60 days of permit issuance, submit to the Division of Water Quality a single, scaled map of the facility which illustrates all waste sources, including lagoons, spray fields, and illustrated spray fall zones; the locations of all monitoring wells and their respective surveyed Top of Well Casing Elevations; all property lines of the facility; and any other pertinent features. 2. Monitor wells MW-I, MW-2, MW-3, MW-4, MW-5, and MW-6 shall be sampled every March, July and November for the following parameters: Ammonia Nitrogen pH TOC Water Level 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. 4 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/1, 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 results of the sampling and analysis must be received on Form GW-59 (Groundwater Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on or before the last working day of the month following the sampling month. 3. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 4. 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. 5. Under rule 15A NCAC 2L .0107 (d), wells which are used for any type of water supply are not allowed within the compliance boundary of a permitted facility. Any wells so situated shall be properly abandoned in accordance with 15A NCAC 2C .0113. 6. No land application of waste activities shall be undertaken when the water table is less than three (3) feet below land surface. V . INSPECTIONS I. 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 Penznittee 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 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 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 Ieachate. V I. GENERAL CONDITIONS 1. 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. 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. 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). 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 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. 9. The permittee shall, within 90 days of permit issuance, submit a vegetation management plan including recommendations for year round cover crops and their harvesting schedules. 10. Once the average daily flow (yearly flow) of the facility reaches 0.5 MGD, the Town of Ocean Isle Beach shall submit plans and specifications for the construction of additional irrigation fields. The new fields shall be constructed and operational upon the average daily flow (yearly flow) reaching 0.6 MGD. Permit issued this the seventh day of July, 1997. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION ,LA. Preston Howard, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0006085 0