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HomeMy WebLinkAboutWQ0022697_Final Permit_20031022�d 'NN A Michael F. Easley, Governor William G. Ross Jr., Secretary y North Carolina Department of Environment and Natural Resources > Aian W, Klimek, P.E. Director p -r Coleen H. Sullins, Deputy Director Division of Water Quality October 29, 2003 Honorable Robert B. Partin, Mayor Town of Scotland Neck 1310 Main Street Scotland Neck, North Carolina 27874 Subject: Permit No. WQ0022697 Town of Scotland Neck Reclaimed Water Generation and Utilization System Project Number E-SRG-T-01-135 Dear Mayor Partin: Enclosed is a copy of the Reclaimed Water Generation and Utilization Permit, which was issued on October 22, 2003. The document previously sent to you did not include the site map attachments. This copy includes the attachments. Should you have questions regarding this matter, tali me at (919) 715-6203. Sincerely, 4 4 Cecil . Madden, Jr., P.E Supervisor Design Management Unit Attachments TR:cgm cc: Todd A. Leonard, P.E., Engineering Services, P.A Raleigh Regional Office Daniel Blaisdell, P.E. Cecil G. Madden, Jr. P.E. Teresa Rodriguez, P.E. SRG Construction Grants & Loans Section 1633 Mail Service Center Raleigh, NC 27699-1633 Phone (919) 733-6900 Customer Service NCDENR Web Site www.n c lmet FAX (919) 715-6229 1(8n 623-6749 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH RECLAIMED WATER GENERATION AND UTILIZATION 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 Scotland Neck Halifax County construction and operation of a 48,000 GPD reclaimed water generation and utilization facility with a spray irrigation system consisting of a 186-gpm reuse water pump and associated piping, approximately 4,300 ft of 6-inch force main and a 16 acres spray irrigation field to serve the Town of Scotland Neck, with no discharge of wastes to the surface waters, pursuant to the application received June 5, 2003, 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 October 21, 2008, and shall be subject to the following specified conditions and limitations: I. 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, 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 Construction Grants & Loans Section, Division of Water Quality, 1633 Mail Service Center, Raleigh, NC 27699-1633. The Raleigh Regional Office, telephone number (919) 571-4700, 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. Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck 3. The reclaimed water 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 (Division), such as the construction of additional or replacement wastewater treatment and disposal facilities. 4. The issuance of this permit shall not relieve the Perrnittee 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. The following buffers shall be maintained: a. 100 feet between wetted areas and water supply wells, b. 100 feet between wetted areas and waters classified as SA, c. 25 feet between wetted areas and surface waters not classified as SA, d. 100 feet between wastewater treatment units and wells, e. 50 feet between reclaimed water storage/irrigation ponds and property lines, and f. 50 feet between wastewater treatment units and property lines. 8. Public access to the irrigation sites shall be controlled during active site use. Such controls may include the posting of signs showing the activities being conducted at each site. A sign shall be posted in plain sight showing these activities. All reclaimed water valves, storage facilities, outlets shall be tagged or labeled to wam the public o r e mployees t hat the w ater i s n of i ntended for drinking. Where appropriate, such warning shall inform the public or employees to avoid contact with the water. 10. All reclaimed water piping, valves, outlets and other appurtenances shall be color -coded, taped, or otherwise marked to identify the source of the water as being reclaimed water_ a. All reclaimed water piping and appurtenances shall be either colored purple (i.e., Pantone 522) and embossed or integrally stamped or marked "CAUTION: RECLAIMED WATER DO NOT DRINK" or be installed with a purple (i.e., Pantone 522) identification tape or polyethylene vinyl wrap. The warning shall be stamped on opposite sides of the pipe and repeated every three feet or less. b. Identification tape shall be at least three inches wide and have white or black lettering on purple (i.e., Pantone 522) field stating "CAUTION: RECLAIMED WATER DO NOT DRINK." Identification tape shall be installed on top of reclaimed water Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck pipelines, fastened at least every 10 feet to each pipe length and run continuously the entire length of the pipe. c. Existing underground distribution systems retrofitted for the purpose of distributing reclaimed water shall be taped or otherwise identified as in items a. or b. above. This identification need not extend the entire length of the distribution system but shall be incorporated within 10 feet of crossing any potable water supply line or sanitary sewer line. 11. All reclaimed water valves and outlets shall be of a type, or secured in a manner, that permits operation by authorized personnel only. 12. Above -ground hose bibs (i.e., spigots or other hand -operated connections) shall not be present. Hose bibs shall be located in locked below -grade vaults that shall be clearly labeled as being of non -potable quality. As an alternative to the use of locked below -grade vaults with standard hose bibs services, hose bibs, which can only be operated by a special tool may be placed in non -lockable underground services boxes clearly labeled as non -potable water. 13. The Pernnittee shall maintain an active cross -connection control program that shall have the following minimum requirements: a. No direct cross -connections shall be allowed between the reclaimed water and potable water systems. b. A reduced pressure principle backflow preventer, an approved air gap separation, or other device approved by the Division of Environmental Health shall be installed at the potable water service connection to the use area where both reclaimed water and potable water are supplied to a reclaimed water use area. The installation of the reduced pressure principle backflow prevention device shall allow proper testing. c. An air gap separation, approved and regularly inspected by the potable water supplier, shall be provided between the potable water and reclaimed water systems where potable water is used to supplement a reclaimed water system. II. OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. 2. 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. A suitable year round vegetative cover shall be maintained. Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck 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 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, unless authorized by an NPDES permit. 7. The annual spray irrigation application rate onto 16 acres shall be according to the following table. Minimum Maximum Maximum Cumulative Loading Cumulative Loading Instantaneous over any 12 month over any 12 month Loading Rate period (inches/year) period (inches/year) (inches/hour) 19.5 * 39.0 0.25 *The minimum annual cumulative loading rate of 19.5 inches/year is established to assure a minimum level of irrigation onto the spray irrigation field. If the annual total rainfall exceeds the 90th percentile rainfall calculated for Scotland Neck in Halifax County (54 inches/year), then'this minimum annual cumulative loading rate requirement will be adjusted by the Division. 8. No type of wastewater other than that from The Town of Scotland Neck 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. All wastewater shall be discharged in strict accordance with the conditions of the facility's existing NPDES permit should the limit for fecal coliform (daily maximum concentration of 25 per 100 ml) or turbidity (instantaneous maximum of 10 NTU) be exceeded., until such time that the levels have stabilized below these maximum levels 111. MONITORING AND REPORTING REQUIREMENTS 1. 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. As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations: Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck Parameter BOD5 (5-day, 20°C) NH3 as N TSS Fecal Coliform Turbidity Monthly Average' 10 mg/1 4 mg/1 5 mg/1 14 per I00 ml b 10 NTU Daily (Instantaneous) Maximum 15 mg/1 6 mg/1 10 mg/1 25 per 100 mi a. Monthly averages for all but fecal coliform shall be the arithmetic mean of all samples collected during the reporting period. b. Monthly average for fecal coliform shall be the geometric mean of all samples collected during the reporting period. c_ 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 the point prior to discharge to the spray field for the following parameters: Parameter Flow Turbidity BOD5 (5-day, 20°C) NH3 as N TSS Fecal Coliform Settleable Matter NO3 TKN TDS TOC Chloride Sampling Point Influent or Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Effluent Sampling Freguenck As Used Continuous *2/Month *2/Month *2/Month *2/Month Daily *2/Month *2/Month **Triannually * *Triannually **Triannually Type of Sample Recording Recording Composite Composite Composite Grab Grab Composite Composite Grab Grab 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. ** TriannuaIly sampling shall be conducted during March, July, and November. If Groundwater sampling indicates or predicts problems with the compliance with Groundwater Standards, this permit will be modified to include additional and/or more restrictive limitations. 3. 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: Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck a. date of irrigation, b. volume of wastewater irrigated, c. field irrigated, d. length of time field is irrigated, e. continuous weekly, monthly, and each field, f. weather conditions, and g, maintenance of cover crops. year-to-date hydraulic (inches/acre) loadings for 4. Three (3) copies of all monitoring data (as specified in condition III 2 and III 3) on Form NDMR-1 and three (3) copies of all operation and disposal records (as specified in condition III 4, and I1I 5) on Form NDAR-1 shall be submitted monthly on or before the last day of the following month. All information shall be submitted to the following address: NC Division of Water Quality Water Quality Section Non -Discharge Compliance/Enforcement Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 5. A maintenance log shall be maintained at this facility including but not limited to, the following items: a. Visual observations of the spray irrigation site. b. Record of preventative maintenance (irrigation pump maintenance, changing sprinkler nozzles, etc.). c. Date of calibration of flow measurement device. 6. 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. 7. Noncompliance Notification: The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 571-4700, 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: Permit Number W Q0022697 Non -Discharge Permit Town of Scotland Neck 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 indicates 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 Waste application activities shall not occur when the vertical separation between depth of application and the water table is at less than three (3) foot. Verification of the water table elevation can be confirmed by water level readings obtained from the monitor well(s) near the site or auger boring(s), which must be done within 24 hours, prior to application of wastewater. Any open borings must be properly filled with native soil, prior to application to decrease the chance of any waste contaminating the groundwater. 2. The compliance boundary and review boundary for wastewater disposal systems are specified by 15A NCAC 2L. For systems utilizing reclaimed water, 15A NCAC 2H .0219(k) specifies that both the compliance boundary and review boundary shall be established at the property line. An exceedance of groundwater quality standards at or beyond the compliance boundary is subject to immediate rernediation action in addition to the penalty provisions under North Carolina General Statute 143-215.6A(a)(1). 3. Any groundwater quality monitoring, as deemed necessary by the Division, shall be provided. V. INSPECTIONS Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to insure proper operation of the subject facilities. Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck 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 Penmittee. 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. This permit is issued pursuant to T15A:2H.0219(p) for the construction and operation of a reclaimed water utilization facility without flow equalization. In the event that non-compliance with any permit limitation results from the absence of flow equalization, this permit may be administratively reopened, and a requirement for the construction of a flow equalization basin may be incorporated into the permit. 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. Permit Number WQ0022697 Non -Discharge Permit Town of Scotland Neck 6. 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. 7. The Permittee, within 90 days following issuance of this permit, shall request modification of NPDES Permit No. NC0023337 issued to the Town of Scotland Neck wastewater treatment facility. The modification shall amend the existing NPDES permit to allow the conjunctive use of reclaimed water as provided for in this permit. S. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of the project. 9. 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). 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. This permit in no way negates, precludes, or invalidates the most recent reissuance of NPDES Permit No. NC0023337, and the Permittee shall continue to comply with all conditions provided for therein. Permit issued this the 22nd day of October 2003. NORTH CAROUNA ENVIRONMENTAL MANAGEMENT COMMISSION /rz/ '/ 1 .10/-- /$, rA W. Klimek, P.E., Direct ision of Water Quality uthority of the Environmental Management Commission Permit Number WQ0022697 If .r_ Permit No Neck Tawn of Scotland Spray Irrivation Site 'j" ion System