Loading...
HomeMy WebLinkAboutWQ0000165_Correction_19950731State of North Carolina Department of Environment, Health and Natural Resources f Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director July 31, 1995 Mr. Deuard Bowden, President Sands Villa Utilities, Incorporated 1400 East Fort Macon Road Atlantic Beach, NC 28512 m 3W 4000 A. � 1:3EHN1=1 Subject: Permit No. WQ0000165 Amendment Sands Villa Utilities, Incorporated Sands Villa Resort Wastewater Rotary Distributor Facilities Carteret County Dear Mr. Bowden: In accordance with the modification request made on your behalf by Mr. Don O'Mara on June 27, 1995, we are forwarding herewith Permit No. WQ0000165 as amended, dated July 31, 1995, to Sands Villa Utilities, Incorporated, for the continued operation of the subject wastewater rotary distributor facilities. The permit was modified to indicate the proper location in the subject treatment system from which samples should be taken to monitor compliance with the permit and all applicable rules. This permit shall be effective from the date of issuance until April 30, 2000, shall void Permit No. WQ0000165 issued May 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. 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, 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 Ivliw'-fty ox at (919) 733-5083 ext. 549. Sincerely, Lo A. Pres Howard, Jr., P.E. cc: Carteret County Health Department Wilmington Regional Office, Water Quality Section Wilmington Regional Office, Groundwater Section Brian Wagner, Groundwater Section, Central Office Training and Certification Unit (No Revised Rating) Facilities Assessment Unit P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper NORTH CAROLINA 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 Sands Villa Utilities, Incorporated Carteret County FOR THE continued operation of (A) a wastewater collection system consisting of approximately 1,448 linear feet of 8 -inch gravity sewer, a 195 gpm pump station with dual pumps, high water alarm, standby power and approximately 500 linear feet of 4 -inch force main; (B) a 43,000 GPD wastewater treatment and rotary distributor facility consisting of a 10,627 gallon aerated flow equalization basin with dual submersible pumps, dual 37.965 gallon aeration basins (each with a 6,250 gallon clarifier), a 7,755 gallon sludge holding tank, two (2) 188 cfm blowers with a standby unit, a 75,000 GPD capacity tertiary filter system, a 1,562 gallon capacity chlorine contact tank with a tablet type chlorinator, a 5,000 gallon effluent dosing tank with dual 195 gpm submersible pumps, two (2) rotary distributors (each with a diameter of 100 feet), an on-site standby power unit, and all the associated piping, valves, and appurtenances to serve Sands Villas Resort and Island Quay Subdivision, with no discharge of wastes to the surface waters, pursuant to the renewal request received December 12, 1994, 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, 2000, shall void Permit No. WQ0000165 issued May 30, 1995, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS 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. 2. 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. 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 Environmental Management. 4. Adequate measures shall be taken to divert stormwater from the high rate infiltration area and to prevent wastewater runoff. 5. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 6. 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. 7. The following buffers shall be maintained: a) 400 feet between high rate infiltration unit and any habitable residence or place of public assembly under separate ownership or which is to be sold, b) 200 feet between high rate infiltration unit and any private or public water supply source and any streams classified as WS or B, c) 200 feet from mean high water between high rate infiltration unit and any "SA" or "SB" classified surface waters, d) 200 feet from normal high water between high rate infiltration unit and any other stream, canal, marsh, or coastal waters, e) 200 feet from normal high water between high rate infiltration unit and any Class I or Class H impounded reservoir used as a source of drinking water, f) 200 feet between high rate infiltration unit and any other lake or impoundment, g) 200 feet between high rate infiltration unit and any Drainage systems (ditches, drains, surface water diversions, etc.) and from any groundwater lowering and surface drainage ditches, h) 100 feet between high rate infiltration unit and property lines, i) 50 feet between treatment units and property lines, and j) 50 feet between high rate infiltration unit and other treatment units and public right of ways. 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 high rate infiltration 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. 8. 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 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. 3. The application rates for the high rate infiltration system shall not exceed 10 gpd/ft2. 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. 13 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 cleaned as needed to ensure that adequate aeration is provided. Records of this maintenance shall be maintained by the permittee. 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 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. As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations: Parameter Monthly Averagga Daily Maximumb Flow 0.043 MGD BODS (5 -day, 20°C) 10 mg/1 NH3 - N 4 mg/1 TSS 20 mg/1 Fecal Coliform 14 per 100 ml 43 per 100 ml a Monthly average shall be the arithmetic mean of all samples collected during the reporting period. b Daily maximum shall be the maximum value of all samples collected during the reporting period. The effluent from the subject facilities shall be monitored, by the Permittee, at a point after chlorine contact and prior to discharge to the rotary distributors for the following parameters: Parameter Sampling Point Sampling Frequency T-ype of Sample Flow BODS (5 -day, 20°C) NH3 as N TSS Fecal Coliform Settleable Matter Residual Chlorine NO3 TDS TOC Chloride Influent or Effluent Continuous Recording Effluent *2/Month Composite Effluent *2/Month Composite Effluent *2/Month Composite Effluent of first pond *2/Month Grab Effluent Daily Grab Effluent Daily Grab Effluent **Triannually Grab Effluent **Triannually Grab Effluent **Triannually Grab Effluent **Triannually Grab The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. * 2/Month sampling frequency only during the months of April through October. During the remainder of the year, these parameters shall be monitored monthly. ** Triannual sampling shall be conducted during March, July and November. If Groundwater sampling indicates or predicts problems with compliance with 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 last day of April, August and December. All information shall be submitted to the following address: NC Division of Environmental Management Water Quality Section Facility Assessment Unit Post Office Box 29535 Raleigh, N.C. 27626-0535 n 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. 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. 6. 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 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 line, 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 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. Within 90 days of May 30, 1995, monitoring wells MW -1 and MW -2 shall be abandoned in accordance with 15A NCAC 2C .0113. 2. Within 90 days of May 30, 1995, three (3) new downgradient monitor wells shall 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 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 Wilmington Regional Office. 5 3. Existing monitor well MW -3 and new monitoring wells MW -4, MW -5 and MW -6 shall be sampled initially after construction and thereafter every March, July and November for the following parameters: NO3 Ammonia Nitrogen TDS TOC pH Water Level Chlorides Fecal Coliforms Orthophosphate Volatile Organic Compounds - In November 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 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/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. If any volatile organic compounds are detected by Method 6230D, or the equivalent Method 502.2, then the Wilmington Regional Office Groundwater Supervisor, telephone number (910) 395-3900, 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 29535 Raleigh, N.C. 27626-0535 on Form GW -59 [Compliance Monitoring Report Form] every April, August and December. 4. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 5. 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. 6. The Wilmington Regional Office, telephone number (910) 395-3900, 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 location. Such notification to the regional groundwater 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. rel 7. Within sixty (60) days of completion of all monitoring wells, the permittee shall submit two original copies of a scaled 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. 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 Environmental Management P.O. Box 29535 Raleigh, N.C. 27626- 0535. Upon 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 29535, Raleigh, NC, 27626-0535. 9. 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. 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 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 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 Environmental Management or other permitting authority, upon request. 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 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 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. The subject wastewater treatment and disposal facilities shall be connected to an operational publicly owned wastewater collection system within 180 days of its availability to the subject facilities, if the subject wastewater treatment or disposal facilities are in noncompliance with the terms and conditions of this non -discharge permit or the governing statutes or regulations. Prior to the initiation of these connection activities, appropriate approval must be received from this Division. 5. 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). 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 Environmental Management 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. 8. 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 thirty-first day of July, 1995 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION om&' , &"Vn1J'2z'/L A. Preston, oward, Jr., P ., Director Division of nvironmental Management By Authority of the Environmental Management Commission Permit Number WQ0000165 C•7 It _- rfoi'_•� °� �- �.� —�- —� 1 L.rapO tea° i — 1 92.M o-- � _ ,► �� V iQ f 2 o C' p "I Awl •` ��• y� \ 709] sp ft � o ~ fes...+„ J5.LA Ow'T C. sal �y i l a"Il 4'Cv••1 fR. 4-5 57 z 42 ao _ go MOO M, MOO 2 g, - • • o : 7,utfatft 7,203 ►a ft ` �p • OF MOO T,W2sQ.rt. 7,48Oaa!1 7,37►ss4f1, 7,Oi3soft 3tr:'t 5,2'S9st' _ p' e z r7' _ sc $a. �> Ta u' a�Z r o.c� moo' SS4O C0ft'W-,..,. AMEA Fo.rk1�� W1160"C0MMW7W,fC„a1 A.rec, C_1 126 5 cc, Sze n.. E. 1:s co.rrT.a,c:rOftAL J � CIO, � 4 / 123 727------------------------- C.o .so ctau c�n d r.m c—atc n... o..s ' t. — — f+r. r U wM 11 r f I C.OAJ 77rSJC" } O r Ir ro rEjaws CawrT 3t7 � L�rr��i 1rs t� 113 1t2 Irl IK P" 713 312 311 366 awn 1 i 1 M s e u ��a r w1tl TY Tl - l L NommIC3 ZCA6TR"A-nOw M PARWR UNDER rPtUCTION - I is t r. l.fY FUTURE COMSTLYCTICrw P"ASC II -L7 c Cc c GJ�co00o/�5 - 1 t OlM x71111 Qll7 Mw -V Ir I bi ftlo.uo - - - - - - - - - - - - - - :'7 x 3 CL Ir I bi ftlo.uo - - - - - - - - - - - - - - :'7