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HomeMy WebLinkAboutWQ0002994_Final Permit_20010806State of North Carolina Department of Environment and Natural Resources Division of Water Quality Michael F. Easley, Governor William G. Ross Jr., Secretary Gregory J. Thorpe, Ph.D., Acting Director August 6, 2001 MR. RODNEY M. TART, DIRECTOR OF PUBLIC UTILITIES SOUTHWEST WATER AND SEWER DISTRICT OF HARNETT COUNTY POST OFFICE BOX 1119 LILLINGTON, NORTH CAROLINA 27546 Dear Mr. Tart: ,1kr:.1WyW'J f NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subject: Permit No. WQ0002994 Southwest Water and Sewer District of Harnett County Carolina Lakes Wastewater Facilities Wastewater Treatment and Spray Irrigation Facilities Harnett County In accordance with your permit modification application package received on July 21, 1999 as well as the additional information received on December 17, 1999; July 28, 2000; August 4, 2000; March 12, 2001; and July 12, 2001, we are forwarding herewith Permit No. WQ0002994, dated August 6, 2001, to the Southwest Water and Sewer District of Harnett County for the construction and continued operation of the subject wastewater treatment and spray irrigation facilities. This permit shall be effective from the date of issuance until August 31, 2004; shall void Permit No. WQ0002994, issued on September 30, 1999; and shall be subject to the conditions and limitations as specified therein. This permit approves the modification of the existing wastewater treatment and spray irrigation facilities such that they may accommodate up to 700,000 gallons per day of influent wastewater flow. Please tape the time to review this permit thoroughly as some of the conditions contained therein may have been added or changed since the Iast issuance of this permit. Of special interest are the following: ♦ System Description: The system description has been amended to allow the continued operation of the existing wastewater treatment and spray irrigation facilities, abandonment of specific components of these facilities, as well as the construction and operation of additional facilities. Note that the system description is not intended to be an all-inclusive list of each component of the wastewater treatment and spray irrigation facilities, rather the approved plans and specifications contains detailed information regarding the facilities that the Division of Water Quality (Division) considers to be approved. ♦ Condition 1. L. This is a new condition that prohibits the initiation of any construction activities until the appropriate soil and erosion and sedimentation control plan approvals have been applied for and secured. 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone (919) 733-5083 Fax (919) 715-6048 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper ♦ Condition I. 2.: Since treatment and disposal will be on -going during the construction period for the additional wastewater treatment and spray irrigation facilities, this new condition requires that construction be scheduled and performed in a way such that existing service is not interrupted, operation of the existing facilities is not jeopardized, and overflows/bypasses/discharges of wastewater are avoided. ♦ Condition 1. 3.: Because the Division is concerned for the potential of soil erosion during and immediately following the construction process, this new condition provides some guidance regarding minimizing land disturbance and maintenance of the existing vegetative cover. ♦ Condition 1. 4.: Because it was not submitted to the Division during review of this permit modification, a crop management plan must be submitted to and acknowledged before operation of the additional spray irrigation activities may occur. ♦ Condition 1. 5.: Following construction and prior to operation of any additional wastewater treatment and spray irrigation facilities, this condition requires that the Division must receive first receive a document from a North Carolina-Iicensed professional engineer certifying that the facilities have been installed with the permit, the approved plans and specifications, and other supporting materials. ♦ Condition I. 6.: This condition requires that the Permittee contact the appropriate regional office to schedule a pre -operation inspection of the new wastewater treatment and spray irrigation facilities. ♦ Condition II. 2.: This condition has been amended to reflect the adoption of new rules by the Water Pollution Control System Operators Certification Commission (WPCSOCC). The referenced regulation is now 15A NCAC 8G .0202. ♦ Condition H. 5.: This condition has been amended to be more general in that any wastewater effluent from Southwest Water and Sewer District of Harnett County's Carolina Lakes Wastewater Facilities may now be sprayed onto the wetted area of the spray irrigation facilities. ♦ Condition II. 7.: This condition has been amended to include the approved cumulative and instantaneous application rates for the new spray irrigation facilities. ♦ Condition II. 8.: This condition has been amended to include information regarding the year-round vegetative cover to be established on the new spray irrigation facilities. ♦ Condition III. 2. This is a new condition that is required in all permits issued to non -discharge wastewater treatment and disposal systems in the State of North Carolina. Specifically, this condition details the requirements for complying with the influent flow measuring policy adopted by the Division on May 31, 2000. Daily influent flow volumes must now be reported on Form; NDMR-1 such that this form would be submitted on a monthly basis ♦ Condition III. 5.: It is now Division policy to require a standard soil fertility analysis to be performed on a representative soil sample taken from the spray irrigation field. Records of these sampling events and results of the analyses must be kept on file by the Permittee. Note that the Agronomic Division of the North Carolina Department of Agriculture and Consumer Services offers free soil testing to all North Carolina residents. See this agency's web site at www.ncagri.comlagronomi or telephone (919) 733-2655 for more information about these services_ ♦ Condition III. 6.: Because of the Division's influent wastewater flow measurement policy, Form NDMR-1 must now be submitted on a monthly basis. ♦ Condition IV. I.: This is a new condition that requires that the liner system to be installed in the two new lagoons meet certain specifications in order to be acceptable to the Division. ♦ Condition IV. 2.: This new condition precludes operation of the spray irrigation facilities when the seasonal high water table is less than three feet below the land surface. 2 ♦ Condition IV. 3.: This new condition contains guidance regarding the temporary abandonment of some of the wells that had been previously installed as part of the Permittee's overall groundwater monitoring program. ♦ Condition W. 4. through Condition W. 9.: Four new groundwater monitoring wells must be installed as a condition of this permit modification. These conditions contain specific guidance regarding new well installation, reporting, and monitoring. ♦ Condition W. 10.: Note that total ammonia -nitrogen must now be monitored (i.e., in lieu of ammonia -nitrogen) in samples withdrawn from the groundwater monitoring wells. ♦ Condition VI. I. This condition has been amended to reflect the fact that an application fee is no longer required when making an application to the Division to transfer this permit to a new owner or to reissue this permit such that it reflects a name change of the Permittee. ♦ Condition VI. 5.: Language has been added to this condition to provide examples of some other rules and regulations that may affect non -discharge systems like this one. As always, 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 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 trade, this permit shall be final and binding. One set of the approved plans and specifications is being forwarded to you. If you need additional information concerning this matter, please contact Ms. Shannon Mohr Thornburg at (919) 733-5083, extension 353. Sincere , Gregory 3. Thorpe, Ph.D. cc: Marziano & Minier, P.A. Harnett County Health Department Fayetteville Regional Office, Water Quality Section Fayetteville Regional Office, Groundwater Section Central Office, Groundwater Section Non -Discharge Compliance/Enforcement Unit Technical Assistance and Certification Unit NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RA LEIGH WASTEWATER TREATMENT AND 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 Southwest Water and Sewer District of Harnett County Harnett County M1191-01:12l continued operation of 299,600-gallon per day wastewater treatment and spray irrigation facilities, consisting of the following minimum components: an influent wastewater flow metering station; one facultative lagoon having approximately 3.97 million gallons in hydraulic capacity; one facultative lagoon having approximately 6.63 million gallons of hydraulic capacity; one storage pond having approximately 8.21 million gallons of hydraulic capacity for use during inclement weather; a liquid chlorine disinfection system; a holding basin; a 400-gallon per minute pump station with dual pumps and a wastewater effluent flow meter; approximately 11,620 linear feet of six-inch force main; a 400-gallon per minute booster pump station; an automatic irrigation control system; a 37.5-acre field with a solid -set spray irrigation system having a total of 153 sprinkler heads, each with a throw diameter of 145 feet and automatic drain valves; all associated piping, valves, electrical and instrumental/control systems, and other appurtenances necessary to make a complete and functional wastewater treatment and spray irrigation operation; abandonment of the following minimum components of the existing wastewater treatment and spray irrigation facilities (i.e., after construction and operation of the modified wastewater treatment and spray irrigation facilities as described below): a liquid chlorine disinfection system; a holding basin; a 400-gallon per minute pump station with dual pumps and a wastewater effluent flow meter; approximately 11,620 linear feet of six- inch force main; a 400-gallon per minute booster pump station; an automatic irrigation control system; a 37.5- acre field with a solid -set spray irrigation system having a total of 153 sprinkler heads, each with a throw diameter of 145 feet and automatic drain valves; all associated piping, valves, electrical and instrumental/control systems, and other appurtenances necessary to make facilitate construction of the new wastewater treatment and spray irrigation facilities; and construction and operation of 700,000-gallon per day wastewater treatment and spray irrigation facilities, consisting of the following minimum components (i.e., some components are part of the existing wastewater treatment and spray irrigation facilities): an influent wastewater flow metering station; one facultative lagoon having approximately 3.97 million gallons in hydraulic capacity; one facultative lagoon having approximately 6.63 million gallons of hydraulic capacity; one storage pond having approximately 8.21 million gallons of hydraulic capacity for use during inclement weather; a 1,250-gallon per minute duplex pump station and approximately 11,700 linear feet of 12-inch force main to transfer wastewater to another Iagoon system for additional treatment; two facultative lagoons, each having approximately 18.83 million gallons of hydraulic capacity and geosynthetic clay liner with a hydraulic conductivity not to exceed 5 x 10"9 centimeters per second; a Iiquid chlorine disinfection system; a 1,800-gallon per minute triplex pump station, a wastewater effluent flow meter, and approximately 2,250 linear feet of 16-inch force main to transfer wastewater effluent to the spray irrigation field; an automatic irrigation control system; a 146.02-acre field with a solid -set spray irrigation system having a total of 1,150 sprinkler heads (i.e., 113 having a flow rate of 8.45 gallons per minute and a throw diameter of 107 feet and 1,037 having a flow rate of 30.8 gallons per minute and a throw diameter of 154 feet) that are set in a 75-foot square configuration and automatic drain valves for each sprinkler riser; and all associated piping, valves, electrical and instrumental/control systems, and other appurtenances necessary to make a complete and functional wastewater treatment and spray irrigation operation. The above -described existing and new wastewater treatment and spray irrigation facilities are intended to serve the Southwest Water and Sewer District of Harnett County and its wastewater customers with no discharge of wastes to surface waters, pursuant to the permit modification application package received on July 21, 1999 as well as the additional information received on December 17, 1999; July 28, 2000; August 4, 2000; March 12, 2001; and July 12, 2001, 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 August 31, 2004; shall void Permit No. WQ0002994, issued on September 30, 1999; and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS 1. Construction of the new wastewater treatment and spray irrigation facilities (i.e., those approved with this permit modification) shall not proceed until the appropriate soil erosion and sedimentation control plan approvals have been applied for and secured. The certification from the North Carolina -licensed professional engineer required in Condition L 5. shall serve as proof of compliance with this condition. 2. Construction of the new wastewater treatment and spray irrigation facilities (i.e., those approved with this permit modification) shall be scheduled and performed so as not to interrupt the service provided by and the proper operation of the existing wastewater treatment and spray irrigation facilities (i.e., those previously approved under this permit) nor result in an overflow, bypass, or discharge of wastewater to the surface waters of the State. 3. Installation of the new spray irrigation facilities (i.e_, those approved with this permit modification) shall be performed such that grading and other land disturbing activity is minimized. The Division of Water Quality (Division) highly suggests that most of the existing vegetative cover in the proposed wetted area be maintained until the intended year-round vegetative cover (i.e. see Condition Il. 8.) is adequately established. Minor grading in areas of existing erosion (i.e., old road beds, etc.) shall be acceptable; however, these areas shall be incorporated into the surrounding landscape and seeded to control erosion following such grading. 4. Prior to operation of the new spray irrigation facilities (i.e., those approved with this permit modification), a crop management plan, prepared in accordance with 15A NCAC 2H .0205(d)(7)(D), shall be submitted to and acknowledged by the Division. Note that the Division may choose to incorporate new conditions into or amend existing conditions within this permit at that time. Mail two copies of the crop management plan to the NCDENR-DWQ, Water Quality Section, Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617. VA Upon completion of construction and prior to operation of the new wastewater treatment and spray irrigation facilities (i.e., those approved with this permit modification), a certification shall be received from a North Carolina -licensed professional engineer certifying that the facilities have been installed in accordance with this permit, the approved plans and specifications, and other supporting materials. if the facilities are to be constructed in phases and partially certified, the Permitt .e shall retain the responsibil.ity to track further construction a roved under the same permit and shall provide a final certificate of completion once construction of all of the facilities have been completed. Mail one copy of any partial and final certifications to the NCDENR-DWQ, Water Quality Section, Non -Discharge Permitting Unit, 1617 Mail Service Center, Raleigh, NC 27699- 1617. 6. The Division's Fayetteville Regional Office, telephone number (910) 486-1541, shall be notified at least 48 hours in advance of operation of the new wastewater treatment and spray irrigation facilities so that an in -place inspection can be made. Such notification to the regional water quality supervisor shall be made during normal office hours (i.e., from 8:00 a.m. until 5.00 p.m.) on Monday through Friday, excluding State Holidays. 7. The wastewater treatment and 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 groundwater that will render them unsatisfactory for normal use. In the event that these facilities fail to perform satisfactorily, including the creation of nuisance conditions or failure of the irrigation areas to assimilate the wastewater adequately, the Permittee shall take immediate corrective actions including those actions that may be required by the Division, such as the construction of additional or replacement wastewater treatment and disposal facilities. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to surface waters or groundwater resulting from the operation of the wastewater treatment and spray irrigation facilities. 9. The residuals generated from the wastewater treatment facilities shall be disposed in accordance with North Carolina General Statute § 143-215.1 and in a manner approved by the Division. 10. Diversion or bypassing of the untreated wastewater from the wastewater treatment and spray irrigation facilities shall be prohibited. 11. The following buffers shall be maintained by the wastewater treatment and spray irrigation facilities: a. 400 feet between the wetted area and any residence or place of public assembly under separate ownership, b. 150 feet between the wetted area and any property line, c. 100 feet between the wetted area and any well (i.e., with the exception of an approved groundwater monitoring well), d. 100 feet between the wetted area and any drainageway or surface water, e. 50 feet between the wetted area and any public right-of-way, f. 100 feet between wastewater treatment units and any well (i.e., with the exception of an approved groundwater monitoring well), and g. 50 feet between wastewater treatment units and any property line. Some of the buffers specified above may not have been included in previous permits for the wastewater treatment and spray irrigation facilities. The Permittee does not have to modify previously -approved facilities to comply with these buffers unless specifically required by the Division to do so, nor are these buffers intended to prohibit or prevent modifications that may be required by the Division to improve the performance of the existing facilities. These buffers do, however, apply to modifications of the system that are for the purpose of increasing the wastewater flow that is tributary to the facilities. These buffers do apply to any expansion or modification of the facilities and apply in instances in which the sale of property would cause any of the buffers with which the facilities now comply to be violated. The Permittee shall be advised that any modification to the existing facilities will require a permit modification. H. OPERATION AND MAINTENANCE REQUIREMENTS 1. The wastewater treatment and spray irrigation facilities shall be properly maintained and operated at all times. 2. Upon classification of the wastewater treatment and spray irrigation facilities by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Perrnittee shall employ a certified operator to be in responsible charge (ORC) of the facilities. The operator shall hold a certificate of the type and grade at least equivalent to or greater than the classification assigned to the facilities by the WPCSOCC. The Permittee shall also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of 15A NCAC 8G .0202. The ORC shall visit each Class I facility at least weekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays; shall properly manage and document daily operation and maintenance of the facilities; and shall comply with all other conditions of 15A NCAC 8G .0202. Once the facilities are classified, the Permittee shall submit a letter to the WPCSOCC that designates the ORC within 30 days after construction of the facilities are 50 percent complete. 3. The wastewater treatment and spray irrigation facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater and/or wastewater effluent resulting from the operation of these facilities. 4. Freeboard in any of the treatment and storage lagoons associated with the wastewater treatment facilities shall not be Iess than two feet at any time. 5. No type of wastewater other than wastewater effluent from Southwest Water and Sewer District of Harnett County's Carolina Lakes Wastewater Facilities shall be sprayed onto the wetted area of the spray irrigation facilities. b. Adequate measures shall be taken to prevent wastewater effluent runoff from the wetted area of the spray irrigation facilities. 7. The application rate onto the wetted area of the existing spray irrigation facilities (i.e., those previously approved under this permit) shall not exceed a cumulative loading of 130 inches over any 12-month period at an instantaneous application rate not to exceed 1.5 inches per hour. 4 The application rates onto the wetted area of the new spray irrigation facilities (i.e., those approved with this permit modification) shall not exceed the following: Zone No. Wetted Area (acreage) Soil Series Cumulative Application Rates (inches per year) Instantaneous Application Rate (inches per hour) 1 4.50 Lakeland 52.0 0.53 2 4.23 Lakeland 52.0 0.53 3 4.85 Lakeland 52.0 0.53 4a 3.79 Lakeland 52.0 0.53 4b 4.79 Lakeland 52.0 0.53 4c 3.73 Lakeland 52.0 0.53 5 6.20 Lakeland 78.0 0.53 6 5.52 Lakeland 78.0 0.53 7 5.33 Lakeland 78.0 0.53 8 6.33 Lakeland 78.0 0.53 9a 4.56 Lakeland 52.0 0.53 9b 3.95 Lakeland 15.6 0.15 10 5.03 Lakeland 78.0 0.53 11 4.73 Lakeland 78.0 0.53 12 6.59 Lakeland 78.0 053 13 4.91 Lakeland 78.0 0.53 14 5.39 Lakeland 78.0 0.53 15a 1.08 Vaucluse 15.6 0.15 15b 4.59 Vaucluse 15.6 0.15 16a 1.42 Vaucluse 15.6 0.15 16b 1.09 Vaucluse 15.6 0.15 16c 2.40 Vaucluse 15.6 0.15 17a 2.58 Lakeland 78.0 0.53 17b 3.87 Lakeland 78.0 0.53 18 5.81 Lakeland 78.0 0.53 19a 2.69 Lakeland 52.0 0.53 19b 3.47 Lakeland 52.0 0.53 20 6.08 Lakeland 78.0 0.53 21 5.86 Lakeland 78.0 0.53 22 5.81 Lakeland 78.0 0.53 23 5.23 Lakeland 78.0 0.53 24a 4.44 Lakeland 78.0 0.53 24b 5.17 Lakeland 78.0 0.53 Total 146.02 n/a 1,965.6 n/a e The cumulative application rate shall be equivalent to the loading of wastewater effluent over any 12-month period. 8. Until abandonment, a suitable year-round vegetative cover shall be maintained on the wetted area of the existing spray irrigation facilities (i.e., those previously approved under this pen -nit). A suitable, year-round vegetative cover of hybrid poplar trees and weeping lovegrass shall be established and maintained on the wetted area of the new spray irrigation facilities (i.e., those approved with this modification). Once established, the vegetative cover shall be observed and maintained as follows: a. Inspect the weeping lovegrass cover once per month and maintain as needed (i.e., grass clippings shall be removed) from the area; 5 b. Evaluate the weeping lovegrass cover in September and March for survival and cover percentage and, if necessary, rake all bare areas to the surface layer and reseed; c. Evaluate the hybrid poplar trees annually and prune as necessary to ensure proper distribution of the irrigated wastewater effluent; and d. Have the hybrid poplar trees evaluated by a arborist or agronomist once per permit cycle to determine overall vegetative cover health and to make recommendations as to those mature, dominant stands that should be whole -tree harvested and removed from the area. 9. Irrigation shall not be performed during inclement weather or when the ground is in a condition that will cause runoff. 10. No traffic or equipment shall be allowed on the wetted area of the spray irrigation facilities except while installation occurs or while normal maintenance is being performed. 11. Public access to the wetted area of the spray irrigation facilities shall be controlled during active use. Such controls may include fencing, posting of signs that describe the activities being conducted at the facilities, etc. 111. MONITORING AND REPORTING REQUIREMENTS Any monitoring (i.e., including groundwater, surface water, soil or plant tissue analyses) deemed necessary by the Division to ensure surface water and groundwater protection shall be established and an acceptable sampling reporting schedule shall be followed. 2. Influent wastewater to the wastewater treatment facilities shall be continuously monitored and recorded. Daily flow values shall be reported on Form NDMR-1. The Permittee shall install an appropriate flow measurement device consistent with approved engineering and scientific practices to ensure the accuracy and reliability of flow measurement. Flow measurement devices selected shall be capable of measuring flows with a maximum deviation of less than 10 percent from true flow, accurately calibrated at a minimum of once per year, and maintained to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device. Calibration records for the flow measurement devices shall be kept on file by the Permittee for a period of at least three years. At a minimum, data to be included in this documentation shall include: a. Data of flow measurement device calibration, b. Name of person performing calibration, and C. Percent from true flow. 3. Adequate records shall be maintained by the Permittee tracking the amount of wastewater irrigated. 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; Continuous weekly, monthly, and year-to-date hydraulic (i.e. in inches per acre) loadings for each field; f Weather conditions; and R g. Maintenance of cover crops. 4. The wastewater effluent from the wastewater treatment facilities shall be monitored by the Permittee at a point following all wastewater treatment processes (i.e., including disinfection) and prior to irrigation every February, June, and September for the following parameters: Ammonia -Nitrogen (NH3-N) pH Biochemical Oxygen Demand (BODs) Total Suspended Solids (TSS) Fecal Coliform 5. A representative annual soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted by the Permittee on soil sample(s) from each zone of the spray irrigation facilities. The results of this analysis shall be maintained on file by the Permittee for a minimum of five years. The Standard Soil Fertility Analysis shall include, but shall not necessarily be limited to, the following Parameters: Acidity Exchangeable Sodium Percentage Phosphorus Base Saturation (by calculation) Magnesium Potassium Calcium Manganese Sodium Cation Exchange Capacity Percent Humic Matter Zinc Copper pH 6. Three copies of all operation and irrigation records (i.e., as specified in Condition M. 3.) shall be submitted on Form NDAR-1 on or before the last day of the month following the irrigation event. Three copies of all monitoring data (i.e., as specified in Condition III. 2. and Condition 1II.4.) shall be submitted on Form. NDMR-1 on or before the last day of the month following the monitoring/sampling month. All information shall be submitted to the following address: NCDENR-DWQ Water Quality Section Non -Discharge Compliance/Enforcement Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 7. Noncompliance Notification: The Permittee shall report by telephone to the Fayetteville Regional Office, telephone number (910) 486-1541, 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 facilities that 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 wastewater treatment and spray irrigation facilities incapable of adequate treatment and disposal such as mechanical or electrical failures of pumps, aerators, compressors, etc. c. Any failure of a pumping station, sewer line, or other facility resulting in a bypass 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 facilities have gone out of compliance with its permit limitations. Persons reporting such occurrences by telephone shall also file a written report in letterform within five 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 two new lagoons shall be constructed with a liner of natural material at least one foot thick that has been installed and compacted in six-inch layers (i.e., at most) and meeting a 95 percent proctor standard dry density and a hydraulic conductivity no greater than 10-6 centimeters per second or other lining system deemed by the Division to be acceptable through the issuance of the approved plans and specifications. Following installation and inspection of the lagoons' liner system and prior to the lagoon's use, verification of the liner system's compliance with the hydraulic conductivity and thickness specifications as applicable shall be provided to the Division's Groundwater Section by a North Carolina -licensed professional engineer. 2. No spray irrigation of wastewater effluent shall take place when the seasonal water high water table is less than three feet below the land surface_ Upon completion of construction and prior to operation of the new wastewater treatment and spray irrigation facilities (i.e., those approved with this permit modification), five of the existing groundwater monitoring wells (i.e., MW-3, MW-7, MW-8, MW-9, and MW-10) shall have their wellheads secured in such a way as to prevent accidental damage or access by hand. This access restriction shall be accomplished by utilizing a padlock that would secure a protective cap to the well casing or by some other means deemed to be acceptable to the Division's Groundwater Section. 4. Upon completion of construction and prior to operation of the new wastewater treatment and spray irrigation facilities (i.e., those approved with this permit modification), four groundwater monitoring wells, one upgradient and three downgradient, shall be installed to monitor groundwater quality. The wells shall be constructed such that the water level in the wells are never above or below the screened (i.e., open) portion of the well at any time during the year. The general location and nomenclature for the wells shall be as marked in Attachment A attached to this permit. Each well shall be located at the Review Boundary, constructed in accordance with this permit and as approved by the Groundwater Section of the Division's Fayetteville Regional Office. All wells that are constructed for the purpose of groundwater monitoring shall be constructed in accordance with 15A NCAC 2C .0108 (i.e., "Standards of Construction for Wells Other than Water Supply") and any other state and local laws and regulations pertaining to well construction. The Groundwater Section of the Division's Fayetteville Regional Office, telephone number (910) 486-1541, shall be notified at least 48 hours prior to the construction of any groundwater monitoring well, so that an inspection can be made of the well location. Such notification shall be made to the Regional Groundwater Supervisor during normal office hours (i.e_, from 8:00 a-m_ until 5:00 p.m.) on Monday through Friday, excluding State Holidays. Within 30 days of completion of all groundwater monitoring well construction activities, a certification shall be received from a North Carolina -licensed professional engineer or North Carolina -licensed professional geologist certifying that the wells are located and constructed in accordance with 15A NCAC 2C (i.e., "Well Construction Standards") and this permit. This certification shall be submitted with one copy of a "Well Completion Form" (i.e., GW-1 Form) for each well. Mail this certification and the associated GW-1 Forms to the NCDENR-DWQ, Groundwater Section, Permits and Compliance Unit, 1636 Mail Service Center, Raleigh, NC 27699-1636. 8. For the initial sampling of each groundwater monitoring well as specified elsewhere in this permit, the Permittee shall submit a copy of the GW-I Form with the "Compliance Monitoring Form" (i.e., GW-59 Form) for that well. GW-59 Forms for wells that have not had a GW-1 Form previously submitted shall 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 North Carolina General Statute §143-215.6(a)(1). 9. Within 60 days of completion of all groundwater monitoring well construction activities, he Permittee shall submit two original copies of a scaled topographic map (i.e., with a scale no greater than one inch equals 100 feet) that has been signed and sealed by a North Carolina -licensed professional engineer or a North Carolina -licensed professional land surveyor and contains all of the following information: a. Location of all components of the wastewater treatment and spray irrigation facilities, b. Latitude and longitude of the established horizontal control monument, c. Location and identity of each groundwater monitoring well, d. Relative elevation of the top of the casing for each groundwater monitoring well (i.e., known as the measuring point"), e. Depth of water below the measuring point at the time the measuring point is established, f. Location of all property boundaries, and g. Location of the Review and Compliance Boundaries. This survey shall be conducted using approved practices as outlines in the 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 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 above shall be surveyed relative to this horizontal control monument. The positional accuracy of these features shall have a ratio of precision not to exceed an error of closure of one foot per 10,000 feet of perimeter of the survey. Any features located by the radial method shall be located from a minimum of two points. Horizontal 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. The map shall also be surveyed using the North American Datum of 1983 (NAD 83) 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 shall be differentially corrected. The map and any supporting documentation shall be sent to the NCDENR-DWQ, Groundwater Section, Permits and Compliance Unit, 1636 Mail Service Center, Raleigh, NC 27699-1636. 10. The four new groundwater monitoring wells (i.e., MW-16, MW-17, MW-18, and MW-19) and the five existing groundwater monitoring wells (i.e., MW-1, MW-2, MW-4, MW-5, and MW-6) shall be sampled initially after construction and prior to any disposal activities as well as every February, June, and September thereafter for the following parameters: Chlorides Total Ammonia -Nitrogen (NH3-N) Fecal Coliform Total Dissolved Solids (TDS) Nitrate -Nitrogen (NO3-N) Total Organic Carbon (TOC) pH Water Level Volatile Organic Compounds (VOCs) in September only, using one of the following methods: (A) Standard Method 6230D (PQL at 0.5 µg/L or Iess), (B) Standard Method 6210D (PQL at 0.5 µg/L or less), (C) EPA Method 8021 (Low Concentration, PQL at 0.5 µg/L or Iess), (D) EPA Method 8260 (Low Concentration, PQL at 0.5 µg/L or less), or (E) Another method with prior approval by the Groundwater Section Chief. Any method used shall meet the following qualifications: (1) The laboratory shall be Division certified to run any method used. (2) The method used shall, at a minimum, include all the constituents listed in Table VII1 of Standard Method 6230D. (2) The method used shall provide a PQL at 0.5 µg/L or less, which shall be supported by laboratory proficiency studies as required by the Division's Laboratory Certification Unit. Any constituents detected above the MDL, but below the PQL at 0.5 µg/L, shall be qualified (estimated) and reported. If any VOCs are detected by the methods listed, then the Fayetteville Regional Office Groundwater Supervisor, telephone number (910) 486-1541, shall be contacted immediately for further instructions regarding any additional follow-up analyses required. The results of all initial and follow-up analyses shall be submitted simultaneously. If TOC concentrations greater than 10 milligrams per liter are detected in any downgradient groundwater monitoring well, additional groundwater sampling and analysis shall be conducted to identify the individual constituents comprising the TOC concentration. If the TOC concentration in the background (i.e., upgradient) groundwater monitoring well exceeds 10 milligrams per liter, this concentration shall be taken to represent the naturally -occurring TOC concentration in the groundwater. Any exceedance of this naturally -occurring TOC concentration in downgradient wells shall be subject to additional groundwater sampling and analysis as described above. The measurement of water levels shall be made prior to sampling the groundwater for the remaining parameters. The depth to water in each groundwater monitoring well shall be measured from the surveyed point on the top of the casing. The results of the sampling and analysis shall be received on the "Groundwater Quality Monitoring: Compliance Report Form" (i.e., GW-59 Form) on or before the last working day of the month following the sampling month at the following address: NCDENR-DWQ Groundwater Section Permits and Compliance Unit 1636 Mail Service Center Raleigh, North Carolina 27699-1636 11. The COMPLIANCE BOUNDARY for the disposal system shall be as specified by regulations in 15A NCAC 2L (i.e., "Groundwater Classifications and Standards"). The Compliance Boundary for a disposal system individually permitted after December 31, 1983 shall be 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 shall be subject to immediate remediation action in addition to the penalty provisions applicable under North Carolina General Statute §143-215.6A(a)(1). In accordance with 15A NCAC 2L, a REVIEW BOUNDARY shall be established around the disposal system midway between the Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of groundwater quality standards at the Review Boundary shall require remediation action on the part of the Permittee. 10 12. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. Note that the Division is specifically concerned with the potential for groundwater migration and impacts to adjacent surface waters that intersect the groundwater table as a result of operating the wastewater treatment and spray irrigation facilities. Therefore, the Division reserves the right to require groundwater or surface water monitoring if problems with their quality arise in the future. V. INSPECTIONS 1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to ensure proper operation of the wastewater treatment and spray irrigation facilities. 2. The Permittee or his designee shall 'inspect the wastewater treatment and spray irrigation 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 Pernnittee 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 or other permitting authority. 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 wastewater treatment and spray irrigation facilities 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 1. This permit shall become voidable unless the wastewater treatment and spray irrigation facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 2. This permit shall be effective only with respect to the nature and volume of wastes described in the application and other supporting data_ 3. This permit shall not be transferable. In the event there is a desire for the wastewater treatment and spray irrigation facilities to change ownership, or there is a name change of the Permittee, a formal permit request shall be submitted to the Division accompanied by documentation from the parties involved and other supporting materials as may be appropriate. The approval of this request shall 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 Statutes § 143- 215.6A through § 143-215.6C. The issuance of this permit shall not preclude the Perrnittee from complying with any and all statutes, rules, regulations, or ordinances that may be imposed by other government agencies (i.e., local, state, and federal) which have jurisdiction, including, but not limited to, applicable river buffer rules in 15A NCAC 2B .0200, soil erosion and sedimentation control requirements in 15A NCAC Chapter 4 and under the Division's General Permit NCG0100000, and any requirements pertaining to wetlands under 15A NCAC 2B .0200 and 15A NCAC .0500. 21 6. A set of approved plans and specifications for the wastewater treatment and spray irrigation facilities shall be retained by the Permittee for the life of the facilities. The annual administering and compliance fee shall be paid by the Permittee within 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 211.0205 (c)(4). 8. The Permittee, at least six months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Division shall review the adequacy of the wastewater treatment and spray irrigation facilities described therein, and if warranted, shall extend the permit for such period of time and under such conditions and limitations as it may deem appropriate. Permit issued this the sixth day of August, 2001. NORTH OLINA ` NTAL MANAGEMENT COMMISSION � ` r C� v Gregory J. Thorpe, Ph.D., Acting Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0002994 12 Permit No. WQ0002994 August b, 2001 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. 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IV PF.Rnit'C QU(102944 - - wra•�• iw _ � r.,.. ... .rpS�n wEz rm .. �..�� s•r.14 1 t.r �+ �- KM+'E`S MnrrNS'.•�O 3nIM. w.11 frw_•lE9 pry •�_� w•�r.a •-r'- t 21 PROPOSED Iwf.-.f�, Kn[0 �M•3 is 4.@I.l.l .1 V.NS5' 5..., - • v'n V �' •'- . MONITOR WELL LOCATIONS—��--- �, �wb,lgl, mr,r-`- m R .4r [o n 4S'4 R><�••. � xc s.cn r At IACRMENT B ExIS71-ING VACUI,*I*KI'IVE IAGOON c � .4 Ali Z < AP, LL . i ,v 1 w.. �._..._ .� ,. ;:• ..—.r-.•� � hLS• � •5d` w I d ro Z-. lie' 0 —J cr z U) by Z 0 CL f 2, Ld uj 17 0 0 < Z1, () EXISTING rAcut;rATIVE LAGOON < A!Fi qqt-17 q �jq jvf;l, 4 37q�'- !fW! 51:'' I , LE 24 7. 0 E LE 7-Ji 4 Jlfr:--La-14-u:�," �ZaLP CAROUNA LAKES PERMI,r NO. WQ0002994 HARNETr COUNTY 14 MONITOR WELL LOCATIONS ATTACI1n4LNT C i I+.u. r n.ln•nmuwrr[uonu[raaryrara�wr f IrnrSll rnr rrrnreruonrrwrrnlro r ..�Ilwn.nrrum srlwwr.rwnrnrr+.l wur n"aow..,.. MOMTOR WELLS TO BE ADANDONr[) A rXISTINC MONITOR WELL LOCATIONS �:r•,Ilr[r a.rt � +i•o�iei r°�o`x € nnv-1 s I J14� 1 (to tie abandoned) AN woSE LA (to (to be abandoned) (to be nba9Ec:one(t) LD L GooN A nIW-2 _ - � nm.rtnvcluw[rar[r�[ �� 7 r� Jr Al11'� I' - n11r-1 a V� (to be abandoned) _ 'i =.. 1 •�. - IIM Iati V ---- wilr— .f.w �e 3� 21