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HomeMy WebLinkAboutWQ0018523_Final Permit_20051007C� \NAr�R Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources ZI Alan W. Klimek, P.E., Director O -C Division of Water Quality October 7, 2005 MR. MARK CANTERBURY, PLANT ENGINEER THE JAMS COMPANY 845 COMMERCE ROAD HENDERSON, NORTH CAROLINA 27536 Subject: Permit No. WQ0018523 The Iams Company Henderson, NC Facility Residuals Land Application Program. (D) Land Application of Residual Solids (503 Exempt) Vance County Dear Mr. Canterbury: In accordance with your permit application package received on June 1, 2000 as well as the additional information received on June 21, 2000; December 1, 2000; and August 2, 2001; we are forwarding herewith Permit No. WQ0018523 dated October 7, 2005, to The lams Company for the construction of the subject residuals treatment, storage, conveyance, and application facilities as well as the subsequent operation of the subject residuals land application program at its Henderson, NC Facility. This permit shall be effective from the date of issuance until September 30, 2010 and shall be subject to the conditions and limitations as specified therein. Make note of this permit's expiration date and the fact that a permit renewal application is due to the Division of Water Quality (Division) no later than, six months prior to that date (i.e., see Condition VI. 8.), as the Division does not send reminders to apply for permit renewal. Please take the time to review this permit thoroughly. 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, and/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 shall be in the from of a written petition, conforming to Chapter 150E of the North Carolina General Statutes and filed with the Office of Administrative Hearings at 6714 Mail Service Center, Raleigh, North Carolina 27699-6714, Unless such demands are made, this permit shall be final and binding. One set of Division -approved plans and specifications are enclosed herein for your records. If you need any additional information concerning this matter, please contact Ms. Shannon V Thornburg by telephone at (919) 715-6167, or via e-mail at shannon.thornburg@ncmail.net. Enclosures cc (w/o enclosures): Mr. Michael L. McAllister, P.E., TRC Triangle, Inc, Mr. Thomas M. Spain, City of Henderson Vance County Health Department Raleigh Regional Office - Aquifer Protection Section Technical Assistance and Certification Unit APS Central Files APS Files LAU Residuals Program Coordinator NvthCarolina aturu!!y Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Phone (919) 733-3221 Customer Service Internet: http://h2o.enr.s€ate.nc.us 2728 Capital Boulevard Raleigh, NC 27604 Fax (919) 715-0588 1-877-623-6748 Fax (919)715-6048 An Equal Opportunity/Affirmative Action Employer- 50°% Recycled110°% Post Consumer Paper NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH LAND APPLICATION OF RESIDUAL SOLIDS (503 EXEMPT) 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 The Iams Company Vance County FOR THE construction and operation of a residuals treatment, storage, conveyance, and application facilities for The lams Company's Henderson., NC Facility consisting of the following minimum components: one residuals storage basin having approximately 1.2 million gallons of net hydraulic capacity; one flow metering station to measure and record irrigated residuals flows continuously; one irrigation pump station consisting of two 41-gallon per minute pumps and associated force main to convey residuals to the land application site; one land application site, having approximately 3.40 acres of area with a solid -set spray irrigation system split into three zones, that have approximately 1.05 acres, 1.05 acres, and 1.30 acres, respectively; all associated piping, valves, electrical systems, instrumental/control systems for the control of residuals spray irrigation events, and other appurtenances necessary to make complete and functional residuals treatment, storage, conveyance, and application facilities. and operation of a residuals land application program for The Tams Company's Henderson, NC Facility consisting of the land application of residuals generated by the residuals source -generating facilities listed in the most recently -certified Attachment A to the land application sites listed in the most recently - certified Attachment B. The construction/operation of the facilities and the operation of the program shall be such that there is no discharge of wastes to surface waters and is pursuant to the permit application package received on June 1, 2000 as well as the additional information received on June 21, 2000; December 1, 2000; and August 2, 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 September 30, 2010 and shall be subject to the following specified conditions and limitations: L PERFORMANCE STANDARDS If not already existing, level gauges that meet the criteria for monitoring freeboard levels as stipulated in Condition H. 3. shall be installed in each of the residuals storage basins (i.e., Aeration Basin No. 1 and Aeration Basin No. 2) within 90 calendar days of this permit's issuance. Care shall be taken not to damage the integrity of the liner existing in the basins when installing the gauges. The certification from, a North Carolina -licensed professional engineer, as required in Condition I. 4., shall serve as proof of compliance with this condition. 2. Every 100 feet along all boundaries where fencing does not exist or is not planned for installation around the residuals treatment, storage, conveyance, and application facilities, the Permittee shall install signs that warn the public about not trespassing beyond -the signs. The signs shall be weather-proof, shall be a minimum of eight inches by 11 inches in size, and shall provide, at a minimum, the following information: a. No Trespassing - Authorized Personnel Only! b. Area Contains Residuals Land Application Program Facilities. c. Permitted Under NCDENR-DWQ Non -Discharge Permit Number WQ0018523. d. For Information or Emergency, Call (insert current telephone number). e. Posted by The Iams Company. The certification from a North Carolina -licensed professional engineer, as required in Condition 1.4., shall serve as proof of compliance with this condition. Extreme care shall be taken during clearing and subsequent construction of the residuals application facilities to minimize any loss in the facilities' pre -construction infiltrative capacity due to compaction, grading, etc. Upon completion of construction and prior to operation of the residuals land application program, a certification shall be received from a North Carolina -licensed professional soil scientist that verifies that the facilities, "as built," can still accept the maximum hydraulic loading rates stipulated in Condition H. 17. a. If such a certification cannot be prepared, the Permittee shall submit a report prepared as well as signed, sealed, and dated by the North Carolina -licensed professional soil scientist that provides a final recommendation of hydraulic loading rates (i.e., both instantaneous and cumulative) for the facilities that is reflective of the "as -built" conditions. This permit may be modified at that time to address any differences between the rates currently approved in Condition II. 17. a.. and the new "as -built" rates. The residuals land application program shall not be operated until the requirements of this condition have been met. The Permittee shall mail the final certification (i.e., one copy) or the report (i.e., four copies) to the NCDENR-DWQ, Aquifer Protection Section, Land Application Unit, c/o LAU Residuals Program Coordinator, 1636 Mail Service Center, Raleigh, NC 27699-1636. 2 4. Upon completion of construction and prior to operation of the residuals land application program, a certification shall be received from a North Carolina -licensed professional engineer certifying that the residuals treatment, storage, conveyance, and application 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 inhases andpartial] certified, the Permittee shall retain the responsibility to track further construction approved under the same permit and shall provide a final certificate of completion once construction of all of the facilities have been com le#ed. The Permittee shall mail one copy of any partial and final certifications to the NCDENR-DWQ, Aquifer Protection Section, Land Application Unit, 1636 Mail Service Center, Raleigh, NC 27699-1636. 5. The residuals conveyance facilities shall be designed and constructed in complete compliance with the document entitled "Minimum Design. Criteria for the Fast -Track Permitting of Pump Stations and Force Mains" that was adopted by the Division on June 1, 2000. The certification froze. a North Carolina -licensed professional engineer, as required in Condition I. 4., shall serve as proof of compliance with this condition. 6. The Aquifer Protection Section of the Raleigh Regional Office of the Division of Water Quality (Division), telephone number (919) 791-4200, shall be notified by at least 48 hours in advance of operation of the residuals land application program so that an in place inspection can be made. Such notification to the Regional Aquifer Protection Section Supervisor shall be made during normal office hours (i.e., 8:00 a.m. until 5:00 p.m.) on Monday through Friday, excluding State Holidays. 7. The appropriate local governmental official (i.e., county manager, city manager, etc.) shall be notified at least 24 hours in advance of operation of the residuals land application program. In addition, the appropriate county manager's office shall be notified hours in advance of operation of the residuals land application program so that they will be aware that residuals land application activities have commenced. 8. The residuals land application program shall be effectively maintained and operated as a non - discharge system to prevent the discharge of any wastes resulting from the operation of this program. 9. This permit shall become voidable if the soils of the land application sites fail to assimilate the residuals adequately and may be rescinded unless the land application sites are maintained and operated in a manner that will protect the assigned water quality standards of the surface waters and groundwater. 10. 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 this residuals land application program. I t . In the event that the residuals land application program is not operated satisfactorily, including the creation of nuisance conditions, the Perznittee shall cease land applying residuals, contact the Aquifer Protection Section of the Division's Raleigh Regional Office, and take any immediate corrective actions as may be required by the Division. 12. No residuals other than those generated by the residuals source-gencrating facilities listed in the most recently -certified Attachment A of this permit shall be approved for land application in accordance with this permit. 13. Only residuals that are non -hazardous under the Resource Conservation and Recovery Act (RCRA) shall be approved for land application in accordance with this permit. 14, Because of the biological nature of the residuals to be land applied, the Class B pathogen requirements as defined in 40 CFR Part 503 or the Process to Significantly Reduced Pathogens (PSRP) as defined in 40 CFR Part 257 Appendix II as well as one of the vector attraction reduction requirements in 40 CFR Part 503.33 shall be met when residuals are land applied under the conditions of this permit,. Additionally, an evaluation shall be performed that demonstrates the residuals' ability to comply with this requirement. Upon request, a copy of this evaluation, including all test results and calculations, shall be submitted. 15. Only the land application sites listed in the most recently -certified Attachment B of this permit are approved for residuals land application. II. OPERATION AND MAINTENANCE REQUIREMENTS I. The residuals treatment, storage, conveyance, and application facilities as well as the residuals land application program shall be properly maintained and operated at all times, 2. Upon classification of the residuals land application program by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Permittee shall designate a certified operator to be in responsible charge (ORC) of the program.. The operator shall hold a certificate of the type classification(s) assigned to the program by the WPCSOCC. The Permittee shall also designate a certified back-up operator of the appropriate type to comply with the conditions of 15A NCAC 8G .0202. 3. Level gauges shall be maintained at all times to monitor freeboard levels in the residuals storage basins (i.e., Aeration Basin No. 1 and Aeration Basin No. 2). The freeboard in either basin shall not be less than two feet at any time. The freeboard levels in the basins shall be monitored by an individual level gauge that has readily visible permanent markings indicating the maximum liquid level at the top of the temporary liquid storage volume, minimum liquid level at the bottom of the temporary liquid storage volume, and top of the dam: (i.e., at it lowest elevation within the basins) elevations. Freeboard levels in the basins shall be monitored and recorded every day that residuals are conveyed into a basin, every day that residuals are removed from a basin, and not less than weekly otherwise. 4. No residuals shall be stored at any location other than in the residuals storage basins (i.e., Aeration Basin No. I and Aeration Basin No. 2) at any time, unless written approval has first been requested and obtained from the Division. 5. A protective vegetative cover shall be established and maintained on the embankment of the residuals storage basins (i.e., Aeration Basin No. 1 and Aeration Basin No. 2) from the outside toe of the embankment to the maximum liquid level, berms., pipe runs, erosion control areas, and surface water diversions. Trees, shrubs, and other woody vegetation shall not be allowed to grow on dikes or embankments. The embankments shall be kept mowed or otherwise controlled and accessible. 4 6. The Permittee shall maintain an appropriate flow measurement device to monitor the volume of residuals conveyed to the residuals land application facilities at all times. The device shall be consistent with approved engineering and scientific practices to ensure the accuracy and reliability of flow measurement. The device 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 calendar 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 device 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 device calibration, b. Name of person performing calibration, and c. Percent from true flow during device calibration. 7. A copy of this permit and a spill prevention and control plan shall be maintained on site when residuals are being land applied during the life of this permit. 8. When land applying residuals to any land application site, the following buffer zones shall be maintained at all times: a. 400 feet from residences or places of public assembly under separate ownership; however, the buffer zone requirement may be reduced to a minimum of 100 feet upon written consent of the owner and approval from the Aquifer Protection Section of the appropriate Division's regional office in Attachment B of this permit; b. 100 feet from any public or private water supply source, waters classified as SA or SB, and any Class I or Class 11 impounded reservoir used as a source of drinking water; c. 100 feet from any streams classified as WS or B, any other stream, canal, marsh or coastal waters and any other lake or impoundment; d. 150 feet from property lines; i. The residuals application facilities, as currently designed, show an application area that is only 50 feet from property lines. Since the method of residuals application is spray irrigation, a 150-foot property line buffer is required per 15A NCAC 2H .0219 0)(5)(J)(i). The Permittee may operate the facilities under a variance to this buffer zone (i.e., as currently designed) provided that additional documentation is submitted to and acknowledged by the Division. Specifically, the Permittee shall obtain an executed legal agreement from the owner of each property to be affected by the variance. The legal agreement shall specifically grant a variance to the 150-foot buffer zone by allowing the Permittee to apply residuals to within 50 feet of the property line and shall be successfully filed with the Vance County Registrar of Deeds. In order to receive written acknowledgement from the Division that operation under variance is allowed, the Permittee shall submit a copy of each executed legal agreement along with proof that the agreements have been filed with the Vance County Registrar of Deeds to the NCDENR-DWQ, Aquifer Protection Section, Land Application Unit, c/o LAU Residuals Program Coordinator, 1636 Mail Service Center, Raleigh, NC 27699-1636. e. 50 feet from public right of ways; f. 10 feet from upslope interceptor drains and surface water diversions; and 5 g. 25 feet from downslope interceptor drains, surface water diversions, groundwater drainage systems, and surface drainage ditches. 9. Maximum slope for residuals land application shall be 10 percent for surface application methods and 18 percent for subsurface application methods. 10. Specific residuals land application area boundaries shall be clearly marked on each land application site prior to and during a residuals land application event. 11. Once every calendar year, the solid -set spray irrigation system associated with the residuals application facilities shall be tested and calibrated. Testing and calibration activities shall be performed in accordance with the most -recent version of the guidance entitled "Field Calibration Procedures for Animal Wastewater Application Equipment: Stationary Sprinkler Irrigation System" as published by the North Carolina Cooperative Extension Service. 12. The lifetime loading rates (LLRs) of heavy metal loadings rates on any land application site shall not exceed the following for the corresponding soil cation exchange capacities (CEC): Parameter LLR for a Site with CECs c5 (Pounds per acre) LLR for a Site with CECs 5 to 15 (pounds per acre) LLR for a Site with CECs >I5 ounds er acre) Cadmium 4.5 9 18 Copper 125 250 500 Lead 500 1,000 2,000. Nickel 125 250 500 Zinc 250 500 1,000 13. An acceptable pH shall be maintained in the soil, residuals, and lime mixture, greater than 6.0, on all land application sites onto which residuals are land applied to ensure optimum yield for the crops specified in Condition H. 17. b. The agronomist shall provide information on the pH best suited for the specified crop and the soil type. 14. Should any of the residuals generated by the residuals source -generating facilities listed in the most recently -certified Attachment A of this permit contain a high salt content (i.e., high sodium adsorption ratio (SAR) of five or higher), the exchangeable sodium percentage (ESP) or other method as approved by the Division, using the results from the annual soils analysis as required by this permit, shall be monitored on all of the land application sites. The local Cooperative Extension Office, the Department of Agriculture and Consumer Services, the Natural Resource Conservation Service, a North Carolina -licensed Soil Scientist, or other agronomist shall review the results and make recommendations regarding soil amendments (e.g., gypsum, etc.) or other ameliorative mechanism for maintaining the integrity of the site in terms of suitability for land application of residuals and maintaining conditions conducive to crop growth. The Perrnittee shall implement such recommendations accordingly and shall maintain written records of each monitoring event that includes details of the sites covered and rate of soil amendment application. C1 15. Prior to land applying residuals to any land application site that has previously received or is intended to receive animal waste (e.g., poultry litter, etc.) or other source of nutrients (e.g., fertilizer, etc.) in the future, the Permittee shall obtain information pertaining to the volume and analysis of the applied waste/nutrients from the landowner and/or lessee/operator of the site. The Permittee shall be responsible for verifying the volume of residuals that may be land applied to the site such that the plant available nitrogen (PAN) loading rate for the specified crop (i.e., see Condition 1I. 17, b.) shall not be exceeded by all of the sources of PAN applied. Should the maximum PAN loading rate be met or exceeded, then no additional residuals shall be land applied to the site. 16. A suitable vegetative cover, as listed in Condition 11. 17. b., shall be maintained on land application sites onto which residuals are land applied in accordance with the crop management plan outlined by the local Cooperative Extension Office, the Department of Agriculture and Consumer Services, the Natural Resource Conservation Service, or other agronomist and as approved by the Division. 17. The application rates onto any land application site shall not exceed any of the following: a. Hydraulic Application Rates: Residuals shall be land applied to all land application sites such that the cumulative application rate does not exceed 16.00 inches per year and the instantaneous application rate (i.e., precipitation rate) does not exceed 0.25 inches per hour. The cumulative application rate shall be equivalent to the application of residuals over the previous 12 months (i.e., 12-month floating average). Each site shall be closely monitored during any residuals Iand application event. Should the applied residuals be observed to accumulate on the ground surface, the application rates should be reduced or application shall be ceased accordingly. b. PAN Application Rates: Residuals and other sources of PAN shall be land applied to all land application sites at agronomic rates in accordance with the crop management plan outlined by the local Cooperative Extension Office, the North Carolina Department of Agriculture and Consumer Services, the Natural Resource Conservation Service, or other agronomist. Under no circumstances shall the following PAN loading rates land applied to any site exceed the following for the specified crops: PAN PAN Crop (pounds per Crop (pounds per acre per.year) acre er year) Alfalfa 200 Forest 75 (Hardwood or Softwood Bermuda Grass 220 Milo 100 (Hay or Pasture Blue Grass 120 Small Grain. 100 (Wheat, Barley, or Oats Corn 160 Sorghum or Sudex 180 (Grain) (Pasture) Corn 200 Sorghum or Sudex 220 (Silage) (Silage) Cotton 70 Soybeans 200 Fescue 250 Timothy, Orchard, or 200 Rye Grasses 7 The Permittee shall apply for and receive a modification of this permit before land applying residuals on any land application site that is to be established in a crop other than those listed above. A maximum PAN loading rate for the desired crop shall be approved with the permit modification. If the land application sites are to be overseeded (e.g., bermuda grass in the summer and rye grass in the winter with BOTH crops to receive residuals), then the second crop shall receive an application of PAN at a rate of no greater than 50 pounds per acre per year. This practice shall be allowed as long as the second crop is to be harvested. If the second crop is to be planted for erosion control only and is to be tilled into the soil, then no residuals shall be land applied to these sites because the PAN will essentially be returned to the soil. Residuals shall not be land applied at rates greater than agronomic rates, unless authorized by the Division. 18. Animals shall not be grazed on any land application site for 30 days after a residuals land application event. Sites that are to be used for grazing shall have fencing that will be used to prevent access after each event. 19. Food crops, feed crops, and fiber crops that do not come in contact with the residuals shall not be harvested for 30 days after any residuals land application event. 20. Food crops with harvested parts that touch the residual/soil mixture and are totally above the land surface (e.g., tobacco, melons, cucumbers, squash, etc.) shall not be harvested for 14 months after any residuals land application event. 21. Food crops with harvested parts below the surface of the land (Le., root crops such as potatoes, carrots, radishes, etc.) shall not be harvested for 20 months after any residuals land application event when the residuals remain on the land surface for four months or longer prior to incorporation into the soil. 22. Food crops with harvested parts below the surface of the land shall not be harvested for 38 months after any residuals land application event when the residuals remain on the land surface for less than four months prior to incorporation into the soil. 23. Turf shall not be harvested for one year after any residuals land application event. 24. Adequate provisions shall be taken to prevent wind erosion and surface runoff from conveying residuals from the land application sites onto adjacent properties or into any surface waters. 25. Adequate procedures shall be provided to prevent surface runoff from carrying any land applied or stored residuals into any surface waters. 26. Surface -applied residuals shall be plowed or disced within 24 hours after land application on land application sites with no cover crop established. 27. For land application sites that are prone to flooding or within the 100-year flood elevation, residuals shall be land applied only during periods of dry weather. The residuals shall be incorporated into the soil within 24 hours after land application. 28. Residuals shall not be land applied during inclement weather or until 24 hours following a rainfall event of 0.5-inch or greater in 24 hours. Any emergency residuals land application measures shall first be approved in writing by the Division. 29. Residuals shall not be land applied to any land application site that is flooded, frozen, or snow-covered. 30. Fencing or signs around the residuals treatment, storage, conveyance, and application facilities shall be installed and maintained to control public access during active site use and for the 12-month period following the last residuals land application event. Signs shall be maintained at 100-foot intervals along all boundaries of the facilities where fencing does not exist, shall be weather-proof, shall be a minimum of eight inches by 11 inches in size, and shall provide, at a minimum, the following information: f. No Trespassing - Authorized Personnel Only! g. Area Contains Residuals Land Application Program Facilities. h. Permitted Under NCDENR-DWQ Non -Discharge Permit Number WQ0018523. i. For information or Emergency, Call (insert current telephone number). j. Posted by The lams Company. III. MONITORING AND REPORTING REQUIREMENTS Any monitoring (i.e., including groundwater, surface water, residuals, soil, or plant tissue analyses) deemed necessary by the Division to ensure protection of the environment shall be established, and an acceptable sampling and reporting schedule shall be followed. 2. Residuals generated by each residuals source -generating facility listed in the most -recently - certified Attachment A of this permit shall be analyzed to demonstrate that they are non- hazardous under the Resource Conservation and Recovery Act (RCRA). A corrosivity, ignitability, and reactivity analysis as well as a Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted on residuals generated by each residuals source - generating facility listed in the most recently -certified Attachment A of this permit. The analyses shall be performed at the frequency specified in the most recently -certified Attachment A of this permit, and the results shall be maintained on file by the Permittee for a minimum of five years_ If residuals generated by a particular residuals source -generating facility are land applied at a frequency Iess than that which is specified in the most recently - certified Attachment A of this permit, the analyses shall be required for each residuals land application event. The TCLP analysis shall include the following parameters (i.e., note the regulatory level in milligrams per liter in parentheses): Arsenic (5.0) 1,4-Dichlorobenzene (7.5) Nitrobenzene (2.0) Barium (100.0) 1,2-Dichloroethane (0.5) Pentachlorophenol (100.0) Benzene (0.5) 1, 1 -Dichloroethylene (0.7) Pyridine (5.0) Cadmium (1.0) 2,4-Dinitrotoluene (0.13) Selenium (1.0) Carbon tetrachloride (0.5) Endrin (0.02) Silver (5.0) Chlordane (0.03) Hexachlorobenzene (0.13) Tetrachloroethylene (0.7) Chlorobenzene (100.0) Heptachlor (and its hydrnxide) (0.008) Toxaphene (0.5) Chloroform (6.0) Hexachloro-1,3-butadiene (0.5) Trichioroethylene (0.5) Chromium (5.0) Hexachloroethane (3.0) 2,4,5-Trichlorophenol (400.0) 9 (Condition III. 2. continued...) m-Cresol (200.0) Lead (5.0) o-Cresol (200.0) Lindane (0.4) p-Cresol (200.0) Mercury (0.2) Cresol (200.0) Methoxychlor (10.0) 2,4-D (10.0) Methyl ethyl ketone (200.0) 2,4,6-Trichlorophenol (2.0) 2,4,5-TP (Silvex) (1.0) Vinyl chloride (0.2) After the residuals have been monitored as specified above for two years at the frequency specified in the most recently -certified Attachment A of this permit, the Permittee may submit a request to the Division for a permit modification to request a reduction of this monitoring requirement. In no case, however, shall the frequency of monitoring be less than once per permit cycle. 3. An analysis shall be conducted on residuals generated by each residuals source -generating facility listed in the most recently -certified Attachment A of this permit. The analysis shall be performed at the frequency specified in the most recently -certified Attachment A of this permit, and the results shall be maintained on file by the Permittee for a minimum of five years. If residuals generated by a particular residuals source -generating facility are land applied at a frequency Iess than that which is specified in the most recently -certified Attachment A of this permit, an analysis shall be required for each residuals land application event. The analysis shall include, but shall not necessarily be limited to, the following parameters: Aluminum Lead Phosphorus Ammonia -Nitrogen Magnesium Plant Available Nitrogen calculation) Arsenic Nickel .(by Potassium Cadmium INitrate-Nitrite Nitrogen Sodium Calcium Percent Total Solids Total Kjeldahl Nitrogen Copper pH Zinc After the residuals generated by a particular residuals source -generating facility have been monitored for two years at the frequency specified in the most recently -certified Attachment A of this permit, the Permittee may submit a request to the Division for a permit modification to reduce the frequency of this monitoring requirement. In no case, however, shall the frequency of this monitoring be less thari once per year when a residuals land application event of residuals generated by the residuals source -generating facility occurs during that year. 4. Residuals generated by each residuals source -generating facility listed in the most recently - certified Attachment A of this permit shall be monitored for compliance with Condition 1. 14. The monitoring shall be performed at the frequency specified in the most recently -certified Attachment A of this permit, and data to verify pathogen and vector attraction reduction of the residuals shall be maintained on file by the Permittee for a minimum of five years. The required data shall be specific to the stabilization process utilized, but should be sufficient to clearly demonstrate compliance with the Class B pathogen requirements as defined in 40 CFR Part 503 or the Process to Significantly Reduced Pathogens (PSRP) as defined in 40 CFR Part 257 Appendix 1I. as well as with one of the vector attraction reduction requirements in 40 CFR Part 503.33. 10 5. Laboratory analyses as required by Condition III. 2., Condition III. 3., and Condition III. 4., shall be performed/gathered on the residuals as they are to be land applied. Furthermore, analytical determinations made pursuant to the monitoring and reporting requirements of this permit shall be made by a laboratory certified by the Division for the required parameter(s) under 15A NCAC 211.0800 or 15A NCAC 2H .1100. 6. Proper records shall be maintained by the Permittee tracking all residuals land application events. These records shall include, but are not necessarily limited to, the following information: a. Date and freeboard level measurements in the residuals storage basin; b. Source of residuals; c. Date of land application; d. Location of land application (i.e., site, field, or zone number); e. Method of land application; f. Weather conditions (i.e., sunny, cloudy, raining, etc.); g. Soil conditions (i.e., dry, wet, frozen, etc.); h. Type of crop or crops to be grown on field; i. Volume of residuals land applied in gallons per acre, dry tons per acre, or kilograms per hectare; j. Volume of animal waste or other nutrient source applied in gallons per acre, dry ton per acre, or kilograms per hectare (if applicable); k. Volume of soil amendments (i.e., lime, gypsum, etc.) applied in gallons per acre, dry ton per acre, or kilograms per hectare (if applicable); 1. Continuous weekly, monthly, and year-to-date hydraulic (i.e., in inches per acre) loadings for each site/zone on Form NDAR; and m. Annual and cumulative totals of dry tons per acre of residuals as well as animal waste and other sources of nutrients (i.e., if applicable), annual and cumulative pounds per acre of each heavy metal (i.e., shall include, but shall not be limited to, cadmium, copper, lead, nickel, and zinc), annual pounds per acre of PAN, and annual pounds per acre of phosphorus applied to each field. 7. A representative annual soils analysis (i.e., Standard Soil Fertility Analysis) shall be conducted on each land application site on which a residuals land application or wastewater effluent irrigation event in the respective calendar year has occurred or is to occur, and the results shall be maintained on file by the Permittee for a minimum of five years. The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following parameters: Acidity Exchangeable Sodium Percentage Phosphorus (by calculation Calcium Magnesium Potassium Cation Exchange Capacity Manganese Sodium Copper Percent Humic Matter Zinc Base Saturation H b calculation)p The annual soils analysis as well as an analysis for the following pollutants shall be conducted once per permit renewal on a sample of soil from each land application site on which residuals have been land applied or wastewater effluent has been irrigated during the permit renewal: Arsenic Mercury Nickel Cadmium Molybdenum Selenium Lead 8. Three copies of all required monitoring and reporting requirements as specified in Condition III. L, Condition III.2., Condition III.3., Condition Ill. 4., Condition III, 5., Condition III, 6., and Condition IIL 7 shall be submitted annually on or before March 1 st of the year following the residuals land application event to the following address: NCDENR-DWQ Information Processing Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 9. Noncompliance Notification: The Permittee shall report by telephone to the Aquifer Protection Section of the Division's Raleigh Regional Office at telephone number (919) 791-4200, as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence with the residuals treatment, storage, conveyance, and application facilities and/or residuals land application program that results in the land application of significant amounts of residuals that are abnormal in quantity or characteristic. b. Any failure of the residuals treatment, storage, conveyance, and application facilities and/or residuals land application program resulting in a release of material to receiving waters. c. Any time that self -monitoring information indicates that the residuals treatment, storage, conveyance, and application facilities and/or residuals land application program has gone out of compliance with the conditions and limitations of this permit or the parameters on which the program system was designed. d. Any process unit failure, due to known or unknown reasons, that renders the residuals treatment, storage, conveyance, and application facilities and/or residuals land application program incapable of adequate residuals treatment. e. Any spillage or discharge from a.vehicle or piping system transporting residuals to the application site. Occurrences outside of normal business hours (i.e., from 8:00 a.m. until 5:00 p.m. on Mondays through Fridays, except State Holidays) may also be reported to the Division's Emergency Response personnel at one of the following telephone numbers (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 days following first knowledge of the occurrence. This report shall outline the actions taken or proposed to be taken to ensure that the problem does not recur. 12 IV. GROUNDWATER REQUIREMENTS 1. Well Construction/Abandonment Requirements: a. Within 90 calendar days of this permit's issuance and prior to the operation of the residuals land application program, two groundwater monitoring wells, designated as MW-01 and MW-02, shall be installed to monitor quality of the groundwater upgradient and downgradient from the land application sites. The general location for the groundwater monitoring wells shall be as marked on Figure 1 attached to Attachment B of this permit. The wells shall be constructed such that the water level in the wells is never above or below the screened (i.e., open) portion of the well at any time during the year. Each well shall be located at the Review Boundary, constructed in accordance with this permit, and as approved by the Aquifer Protection Section of the Division's Raleigh Regional Office. b. The groundwater monitoring wells shall be constructed by a North Carolina -certified well contractor, the property owner, or the property lessee according to North Carolina General Statute §87-94.4(b)(2). If the well construction is not performed by a North Carolina -certified well contractor, the property owner or lessee shall physically perform the actual well construction activities. 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 applicable local county rules. c. The Aquifer Protection Section of the Division's Raleigh Regional Office, telephone number (919) 7914200, 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 Aquifer Protection Section Supervisor during normal office hours (i.e., from 8:00 a.m. until 5:00 p.m.) on Monday through Friday, excluding State Holidays. d. Within 30 calendar days of completion of all well construction activities, a certification shall be received frorn. a North Carolina -licensed professional engineer or North Carolina -licensed professional geologist certifying that the groundwater monitoring wells are located and constructed in accordance with this permit. 2. Sampling Requirements: a. Groundwater monitoring wells MW-01 and MW-02 shall be sampled initially after construction and prior to operation of the residuals land application facilities as well as thereafter every April, August, and December. For each sampling event, samples from each well shall be analyzed for the following parameters: Aluminum Nitrate -Nitrogen Total Dissolved Solids Chlorides PH Water Level Copper Phosphorus Zinc Fecal Colifonn Total Ammonia Nitrogen Water levels in the groundwater monitoring wells shall be measured prior to sampling the groundwater for the remaining parameters. The depth to water in each well shall be measured from the surveyed point on the top of the casing, which shall be surveyed relative to a common datum. 13 b. Any laboratory selected to analyze parameters shall be Division -certified for those parameters required. Reportine /Documentation Requirements: a. Within 60 calendar days of completion of the construction of all groundwater monitoring wells, the Permittee shall submit two original copies of a scaled site map (i.e., with a scale no greater than one inch equals I00 feet) that has been signed and sealed by a North Carolina -licensed professional engineer or a North Carolina -licensed professional land surveyor. Special provisions may be granted for exceptions to the above -referenced scale requirements, upon prior approval, for large properties. The neap shall contain all of the following information: i. Location of all major components of the residuals treatment, storage, conveyance, and application facilities. ii. Latitude and longitude of the established horizontal control monument. iii. Location and identity of each groundwater monitoring well. iv. Elevation of the top of the casing for each groundwater monitoring well (i.e., mown as the measuring point"), relative to a common datum. v. Depth of water below the measuring point at the time the measuring point is established. vi. Location of all property boundaries within 500 feet of the residuals treatment, storage, conveyance, and application facilities. vii. Review and compliance boundaries. viii.Date the map is prepared and/or revised. Control monuments shall be installed in such a manner and made of such materials that the monument will not be destroyed due to activities that may take place on the property. The Permittee shall be responsible for the geographic accuracy of any map submitted, however it is produced. b. For the initial sampling of each groundwater monitoring well, the Permittee shall submit a copy of a "Well Construction Record" (i.e., GW-1 Form) with the "Groundwater Quality Monitoring: Compliance Report Form" (i.e., GW-59 Form) for that well. GW-59 Forms for groundwater monitoring 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 § 143-215.6A. c. The results of the sampling and analysis shall be received on the most -recent version of "Groundwater Quality Monitoring: Compliance Report Form" (i.e., GW-59 Form) with copies of the laboratory analyses attached by the Division's Groundwater Section on or before the last working day of the month following the sampling month. d. All reports, maps, and other documents required in the "Groundwater Requirements" section of this permit shall be mailed to the following address: NCDENR-DWQ Information Processing Unit 1617 Mail Service Center Raleigh, NC 27699-1617 14 Updated blank reporting and other forms may be downloaded from the web site for the Division's Aquifer Protection Section at http:////gw.ehnr.state.nc.us/ or requested from the address listed above. 4. Land Application Site Requirements: a. Each land application site identified with a GW-A in the most recently -certified Attachment B of this permit is dominated by soils with a mean seasonal high water table greater than three feet below the land surface. Residuals land application events may occur on these sites throughout the year. b. Each land application site identified with a GW-B in the most recently -certified Attachment B of this permit is dominated by soils with a mean seasonal high water table between one and three feet below the land surface. Residual land application events on these sites shall be prohibited from December through March, inclusive. No residuals shall be land applied to these sites when the vertical separation between the depth of residuals land application and the water table is less than three feet. The actual water table depth for seasonally -restricted soils shall be verified by soil borings within 24 hours prior to any residuals land application event that occurs from April through November, inclusive. The number of borings advanced shall be sufficient to characterize water table conditions across the land application site adequately. Any open borings shall be properly filled with native soil, prior to the residuals land application event, to decrease the chance of any residuals contaminating the groundwater. 5. Applicable Boundary Requirements: a. The COMPLIANCE BOUNDARY for residuals land application programs is specified by regulations in 15A NCAC 2L (i.e., "Groundwater Classifications and Standards"). The Compliance Boundary for each land application site is established at either 250 feet from the residuals land application area or 50 feet within the property boundary, whichever is closest to the residuals land application area. An excecdance of Groundwater Quality Standards at or beyond the Compliance Boundary is subject to immediate remediation action according to 15A NCAC 2L .0106 (d)(2). b. The REVIEW BOUNDARY shall be established around each land application site midway between the Compliance Boundary and the perimeter of the residuals land application area. Any exceedance of Groundwater Quality Standards at the Review Boundary shall require action in accordance with 15A NCAC 2L .0106 (d)(1)_ 6. Additional Requirements: a. Any groundwater quality monitoring, as deemed necessary by the Division, shall be provided. V. INSPECTIONS 1. Adequate inspection, maintenance, and cleaning shall be provided by the Permittec to ensure proper operation of the residuals treatment, storage, conveyance, and application facilities and residuals land application program. 15 2. Prior to each residuals land application event, the Permittee or his designee shall inspect the residuals treatment, storage, conveyance, and application facilities to prevent malfunctions and deterioration, operator errors, and discharges that 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 five years from the date of the inspection and shall be made available to the Division or other permitting authority, upon request. 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 residuals treatment, storage, conveyance, and application facilities or residuals land application program at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be kept 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 residuals treatment, storage, conveyance, and application facilities are constructed and the residuals land application program is operated in accordance with the conditions of this permit, the supporting materials, and in the manner approved by the Division. 2. A set of the Division -approved plans and specifications for the residuals treatment, storage, conveyance, and application facilities shall be maintained by the Permittee for the life of the facilities. 3. This permit shall be effective only with respect to the nature and volume of residuals described in the application and other supporting data. 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. 5. 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 15 NCAC 2H .0205 (c)(4). 6. The issuance of this permit does not preclude the Permittee 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 NCG010000, and any requirements pertaining to wetlands under 15A NCAC 2B .0200 and 15A NCAC .0500. 7. This permit may be modified, revoked, and/or reissued to incorporate any conditions, limitations and monitoring requirements the Division deems necessary in order to protect the environment and public health adequately. 16 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 residuals treatment, storage, conveyance, and application facilities as well as the residuals land application program 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. 9. This permit shall not be automatically transferable. In the event that there is a desire for the residuals treatment, storage, conveyance, and application facilities or the residuals land application program to change ownership or to change the name of the Permittee, a formal permit request shall be submitted to the Division 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. Permit issued this the sevgith day of October, 2005. NORTH CARVIX'4A ENVIRONWNTAL MANAGEMENT COMMISSION for Alan W. Klimek, P.E., Director Division of Water Quality By Authority of the Environmental Management Commission. Permit Number WQ0018523 17 Permit No. WQOO18523 October 7, 2005 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, do hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of this permit, the approved plans and specifications, and other supporting materials. Signature Date Registration No. ATTACHMENT A - Approved Residual Source-Ceneratine Facilities Permit No. WQ0018523 The fangs Company Henderson, NC Facility Residuals ,Land Applicarian Program (D) Owner Facility Name County Permit Number Issued By Is 503? Maximum Monitoring Monitoring Approved Dry Tons Frequency for Frequency for Mineralization Per Year Condition III.2. Condition 111, 3. and Rate Condition H1.4. Tice Jams Company Henderson, NC Facility' Vance 0011 City of Henderson non 5D3 10,00 Annually Aiiaually 0,40 Total I l7, W Ouiy residuals derived from the treatment of industrial wastewater shall be approved for distributionlland application in accordance with this permit. It is the Division's understanding that waste geuerated from the dissolved air {Jotatiou twit (DAF) is managed separately from the biological residuals. Under no circumstance shall DAF waste be land applied under the conditions of this pennit_ Permit No. WQ0418523 Page I of I Certification Date: October 7, 2005 40 20 500tt � �` ra J I n i. i•;J «�g•y �!! rc` ( _ 484 r 4. `-� ° �• • f 1.7r J9Qrr J ' _ Jr I vr�;� 1� �' \ •OB t�A�ll-._."_' ��If7 .� l� ` V� i�r 1.1-FJ3 �> ` ,,ee �i i� �� 1-r• - `\ is rr a-,1� ,. � ' r..� f r ' !rr - \ ` � C � �vean'��—,_, • f ��a ri' 'I i ii y �'1 � r ,rZheter A. lI!! ��I^ ., 0 u &SM5i ( •o -a ' Q Substation;/ II.` w18 f II a ear and 5i ' ff• �Da1 L 1 .tom• .. s��' ,�,. !',to 1, C�OGLIU7 IV ' ,, l / 4/ �1•- fIJ O , - �\ y;�.., + r I z Y �'1i!% y IWI �'' r` •sY •� : t 4017 1 '- - •'Mhp � \ �. ��ff'..`-'r' 1 _. r ! ` 5 1 `•' ��J p �S �— l IZ IL �. � .• • /i•ti�\ � � 'li ''.��� �-. -� f as :T M \ J ern M1 •�I�_ __- (/// I 16 Frog 1 01 alp •-�0 y � �� '-�i C_ �, ��. 482 F 1 25' M1 1733 I 734- • INiEPiOR-C&OLPGICAL SURVEY. RESTON. VIRGINIA-1993 • - 36015T J'I 735000m.E• 78°22'30r' MIL ROAD CLASSIFICATION Primary highway, Light -duty road, hard or�24F� hard surface ._..,_... improved surface .. Secondary highway, hard surface Unimproved road Interstate Route U. S. Route State Route N. C.!� ATTACHMENT B- Approved Land Application Sites Permit No. WQ0018523 The lams Company Henderson, NC Facility Residuals Land Application Program (D) Site/Field IA Landowner Lessee/Operator County Latitude Longitude Net Acreage Applicable Restriction in Condition IV. 4. 01 The Iams Company Vance 1.05 GW-A 02 The Iams Company Vance 1.05 CW-A 03 The Iams Company Vance 1.30 GW-A Total For County Vance 3.40 Total 3.40 Permit No. WQ0018523 Page I of 1 Certification Date: October 7, 2005 I RATED • a.17 CPrI • 20 m. INK \t\\ ,.� \ \ `\\\\\ �♦ CoIIRNG Y \ \\\ \\\\\\\\ c041w,c.7oR slue VERIFY AI.1T9}NG1 NRRIGITIGN REWIRM 7WRFAD SaE foR PIPE 14fTH FACIZ WELDED 8015 SPRINKLER HEAD PRIOR TO ACCEPT a/4' NPT. ORDER114IG PIPE.�,/ 4 ',`!r f I I 1 / lr \ it {it 11=Fl= ;I�I1S,�11=-��_h=11r111(-1�11; III=I�1„I�I� 11--i^ri^rlli ll_ I 11 I Y•'+�—'�S i r \ 4 ff II �rliii / N� ` . � I j/ i ` - ig1Sri iililrlli+ �1 r I I ;r4S ` Y,i— I Ilrlrrlr I . Y5F Il rllllr I ' � � r�IJ I li I��illrl rf�Ijrl r 1 7 1 f Ir 1111 I I 1 .t r r w �Iyl v rjrllr+ I 1 I I / I♦ II It I r,Il1r! 4 r711 11 rrlrrllr4 - I 4 IN rr + r .t •�I r I 7 I I 4 I I I l 1 Y f ® MANEXI4 E 4# PLUG NEW PLUG N PLUG VALVE • CLEAN OUT PLUG RER TEE y� ND WAS RA5 ML W.A55TE ACTIVATED 5LUD QE RETURN ACTIVATED 5LUDGE MIXED LIQUOR CE CST FERIRO EFFLUENT 8g06d1�f+8�/4!lOJfp➢ ARo, LISP DIP �•rr..y CAST IRON SOIL Plp@ DUCTILE IRON PIPS EXISTING aq,`���� . q w • 0%y� •+�l�Innr SUPPLIED BY CONTRACTOR .®!°!�iml I/Vt1lw�. ♦ l n Gramm ---x WOOD LINE •wq + • EX. FENCE LINE 4-20 MA SGNAL Q �� A A l R r 4 -' •.�.��•n�f�. 1 Fd,114a•1114 11t� 'R�\ +frill 1 Ilil lr fill J� fi FOO' 0 100' 200' 5GALE- I'-100' (Fbr x.) Df!SGNED NS SCALE SHEET N0. TRC Triangle � °Z� 1AMS COMPANY OVERALL Tff Na2� x avem Ia• rmn meetly anr+a ❑l6CK® m EN�qlq� VANCE COUNTY, NC SITE PLAN �,G� �* 1� '•1',+0. n,Tf A P C+! PROJ. G. VIAoo-05a.1 21. I'•Ioa �1 1 WATER POLLUTION CONTROL SYSTEM OPERATORS CERTIFICATION COMMISSION CLASSIFICATION RATING SHEET FOR WATER POLLUTION CONTROL SYSTEMS FACILITY INFORMATION: NAME OF FACILITY: The Tarns Company MAILING ADDRESS: PO Box 360, Henderson, NC 27536 COUNTY: Vance CONTACT PERSON: Mark Canterbury TELEPHONE: 252/438-1619 PERMIT NO.: WQ0018523 Check One: NC WQ ✓ HEALTH DP ORC: TELEPHONE: RATING INFORMATION: (Before completing this section, please refer to pages 2-4) PERMITTED FLOW: MGD BNR? YES NO CHECK CLASSIFICATION: WASTEWATER: 1 2 3 4 COLLECTION: 1 2 3 4 SPRAY IRRIGATION SUBSURFACE LAND APPLICATION ✓ via spray irrigation PHYSICAL/CHEMICAL GRADE I GRADE II 19 RATED BY: Ran J es REGION: RRO DATE: 8/18/00 REGIONAL OFFICE TELEPHONE NUMBER: 919/571-4700 EXT: 249 Permit No.: WQ0018523 Page 1 Classification of Biological Water Pollution Control Treatment Systems: Grade I Biological WKS - Septic tank/sand filter systems -Biological lagoon systems - Constructed wetlands and associated appurtenances Grade II Biological WKS - Systems that utilize an activated sludge or fixed growth process with a permitted flow less than or equal to 0.5 million gallons per day (mgd) Grade III Biological WPCS - Systems that utilize an activated sludge or fixed growth process with a permitted flow of greater than 0.5 through 2.5 million. gallons per day (mgd) - Grade II systems that are required to achieve biological nutrient redaction Grade IV Biological WPCS - Systems that utilize an activated sludge or fixed growth process with a permitted flow of greater then 2.5 million gallons per day (mgd) - Grade III systems that are required to achieve biological nutrient reduction * Biological Nutrient Reduction - The reduction of total nitrogen or total phosphorus by an activated sludge or faxed growth process as required by the facilities permit. Classification of Collection Water Pollution Control Systems: (whichever provides lowest grade) Same grade as biological water pollution control system. Grade of system: Based on population served: 1,500 or Less = Grade I 1,501 to 15,000 = Grade II 15,001 to 50,000 = Grade III 50,001 or more = Grade IV Permit No.: WQ0018523 Page 2 Classification of Stray Irrigation Water Pollution Control Systems; Systems which utilize spray irrigation for the reuse or disposal of wastewater. These systems include: septic tanks, sand filter, oil/water separators, lagoons, storage basins, screening, sedimentation. Systems other than those listed above Shall be subject to additional classification. Classification of Land Application of Residuals Systems: ✓ Systems permitted and dedicated for the land application of residuals that are produced by a water pollution control system or contaminated soils. Classification of Physic al/Chemical Water Pollution Control Treatment Systems: Grade I Physical/Chemical: Any water pollution control system that utilizes a primarily physical process to treat wastewater. This classification includes groundwater remediation systems ** Grade 11 Physical/Chemical: Any water pollution control system that utilizes a primarily chemical process to treat wastewater. This classification includes reverse osmosis, electrodialysis, and ultrafltration systems. ** * * Any water pollution control system that utilizes a physicallchemical process to enhance an activated sludge or fixed growth process, shall not be subject to additional classification Classification of Subsurface Water Pollution Control Systems: Systems which utilize the soil for subsurface treatment and disposal of wastewater And/or are required to have a certified operator under 15A NCAC 18A.1961. *** *** Any subsurface system that has as part of its treatment process a waterpollution control system that may be classified under Rules .0302 through .0307 of this section shall be subject to additional classification. Permit No.: WQ0018523 Page 3