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HomeMy WebLinkAboutWQ0000506_Final Permit_19950131State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director January 31, 1995 Mr. Wallace Woodall, President Wallace Woodall Vacuum Pumping, Inc. Post Office Box 5066 Cary, North Carolina 27512 4•• I DEHNF=1 Subject: Permit No. WQ0000506 Wallace Woodall Vacuum Pumping, Inc. Land Application of Wastewater Residuals Wake and Chatham Counties Dear Mr. Woodall: In accordance with your amendment request received October 26, 1994, we are`forwardina herewith Permit No. WQ0000506 as amended, dated January 31, 1995, to Wallace Woodall Vacuum Pumping, Inc. for the continued operation of a land application of sludge program. This permit is being amended to allow the construction and operation of a 1,000,000 gallon lagoon which will be used for the storage of wastewater residuals from Miles Laboratories, a 400,000 gallon lagoon which will be used for the storage of domestic package system wastewater residuals when weather prohibits land application, and a 300,000 gallon lagoon which will be used for the lime stabilization of- the wastewater residuals from Miles Laboratories. Please be advised, the stabilization requirements must be met prior to the land application of the wastewater residuals. If the wastewater residuals are stabilized prior to going into the storage lagoons, the residuals must be retested to verify that no pathogen regrowth has occurred or be restabilized. In addition, upon a detailed site soil investigation by Mr. Karl Shaffer, the seasonal restrictions on the Wallace Woodall sites, Site Nos. 801, 502, 803. and 804, has been removed. However, these sites will still be restricted by Condition No. IV 4 which states, no land application of waste activities shall be undertaken when the seasonal high water table is less than three feet below land surface. This permit shall be effective from the date of issuance until September 30, 1997, shall void Permit No. WQ0000506 issued November 9, 1994, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring and reporting requirements contained in this permit. Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. P,O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper If you need additional information concerning this matter, please contact Mr. Michael D. Allen at (919) 733-5083. Sincerely, A. Prest Howard, Jr., P.E. cc: Wake County Health Department Chatham County Health Department Agri -Waste Technology Raleigh Regional Office, Water Quality Section Raleigh Regional Office, Groundwater Section Jack Floyd, Groundwater Section Central Office Training and Certification Unit Facilities Assessment Unit NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH RESIDUALS LAND APPLICATION 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 Wallace Woodall Vacuum Pumping, Inc. Wake and Chatham Counties FOR THE construction and operation of a 1,000,000 gallon lagoon which will be used for the storage of wastewater residuals from Miles Laboratories, a 400,000 gallon lagoon which will be used for the storage of domestic package system wastewater residuals when weather prohibits land application, and a 300,000 gallon lagoon which will be used for the lime stabilization of the wastewater residuals from Miles Laboratories, and the continued operation of a wastewater residuals land application program consisting of the application of approximately 8,164,000 gallons per year of residuals from the facilities listed in Condition No. 11 4, to approximately 440.78 acres of land in Wake and Chatham Counties with no discharge of wastes to the surface waters, pursuant to the amendment request received on October 26, 1994, and in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment, Health and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until September 30, 1997, shall void Permit No. WQ0000506 issued November 9, 1994, and shall be subject to the following specified conditions and limitations - PERFORMANCE STANDARDS Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535. 2. The Raleigh Regional Office, telephone number (919) 571-4700, shall be notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an in-place inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 3. The Raleigh Regional Office, telephone number (919) 571-4700, and the appropriate local governmental official (county manager/city manager) shall be notified at least twenty-four (24) hours prior to the initial application of the residuals to a site so that an inspection can be made of the application sites and application method. Such notification to the regional supervisor shall be made during the normal office hours from 8:04 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. In addition, the Chatham and/or Wake County Manager's office must be notified prior to the initial application so that they will be aware that the operation has commenced. 4. This permit shall become voidable if the soils fail to adequately assimilate the wastes and may be rescinded unless the sites are maintained and operated in a manner which will protect the assigned water quality standards of the surface waters and ground waters. 5. The 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. 6. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to surface or groundwaters resulting from the operation of this program. 7. In the event that the land application program is not operated satisfactorily, including the creation of nuisance conditions, the Permitte&'§hall cease applying residuals to the sites and take any immediate corrective actions as may be required by the Division. 8. Some of the buffers specified below may not have been included in previous permits for this land application operation. However, any sites or fields that are included in this permit, but were approved with different applicable buffers shall be reflagged to comply with the below. buffers. The following buffer zones shall be maintained: a) 400 feet from residences or places of public assembly under separate ownership for surface application method; however, the buffer zone requirement may be reduced to a minimum of 100 feet upon written consent of the owner and approval from the appropriate DEM regional office, b) 200 feet from residences or places of public assembly under separate ownership for subsurface residual injection method; however, the buffer zone requirement may be reduced to a minimum of 100 feet upon written consent of the owner and the appropriate DEM regional office, c) 100 feet from any public or private water supply source, waters classified as SA or SB, and any Class I or Class II impounded reservoir used as a source of drinking water for both methods, d) 100 feet from any streams classified as WS or B, any other stream, canal, marsh or coastal waters and any other lake or impoundment for surface application, e) 50 feet from any streams classified as WS or B, any other stream, canal, marsh or coastal waters and any other lake or impoundment for subsurface application, f) 100 feet from property lines for both surface and subsurface application methods; g) 50 feet from public right of ways for both application methods, h) 10 feet from upslope interceptor drains and surface water diversions for both application methods, i) 25 feet from downslope interceptor drains, surface water diversions, groundwater drainage systems and surface drainage ditches for both application methods. 9. A copy of this permit shall be maintained at the land application site when residuals are being applied during the life of this permit. A spill prevention and control plan shall be maintained in all residuals transport and application vehicles. 10. Specific residual application area boundaries shall be clearly marked on each site prior to and during application. 2 II. 11. No residuals at any time shall be stored at any application site except for the wastewater residuals from Miles Laboratories in the 1,000,000 gallon lagoon and the domestic package system wastewater residuals in the 400,000 gallon lagoon, unless approval has been requested and obtained from the Division of Environmental Management. 12. Maximum slope for residual application shall be 10% for surface application and 18% for subsurface applications. 13. When wastewater residuals are applied, the Class A pathogen requirements and site restrictions in 40 CFR Part 503.32(a) or the Class B pathogen requirements and site restrictions in 40 CFR Part 503.32(b) and one of vector attraction reduction requirements in 40 CFR Part 503.33 must be met. Additionally, an evaluation must be performed which demonstrates the residuals ability to comply with this requirement. Upon request, a copy of this evaluation must be submitted including all test results and calculations. Please be advised, the stabilization requirements must be met prior to the land application of the wastewater residuals. If the wastewater residuals are stabilized prior to going into the storage lagoons, the residuals must be retested to verify that no pathogen regrowth has occurred or be restabilized. OPERATION AND MAINTENANCE _REQUIREMENTS 1. The facilities and application sites shall be properly maintained and operated at all times. 2. A suitable vegetative cover, as listed in condition II 4, shall be maintained in accordance with the crop management plan outlined by the local Extension Office of the Department of Agriculture, or the Soil Conservation Service, or other agronomist, and approved by this Division. 3. An acceptable pH must be maintained in the soil, residual and lime mixture, greater than 6.0, on all land application sites to insure optimum yield for the crop(s) specified below. The agronomist shall provide information on the pH best suited for the specified crop and the soil type. 4. The application rates shall not exceed the following for the specified crops: Crop PAN (lb./acre/`Yr.) Alfalfa 200 Bermuda Grass (Hay, Pasture) 220 Blue Grass 120 Corn (Grain) 160 Corn (Silage) 200 Cotton 70 Fescue 250 Forest (Hardwood & Softwood) 75 Milo 100 Small Grain (Wheat, barley, oats) 100 Sorghum, Sudex (Pasture) 180 Sorghum, Sudex (Silage) 220 Soybeans 200 Timothy, Orchard, & Rye Grass 200 3 5. No sludges other than the following are hereby approved for land application in accordance with this permit: Estimated Volume Required Source County (gallonslyear)Acreage (acres) 1. Town of Wendell Wake 300,000 8.71 2. Town of Pittsboro Chatham 208,000 28.52 WWTP and WTPb 3. Cole Park Plaza WWTP Chatham 48,000 0.35 4. Five Oaks Subdivision WWTP Durham 125,000 2.71 5. Nature Trails MHP as Chatham 32,000 1.23 6. Hudson Hills Subdivision Chatham 4,000 0.24 7. Country Lake Estates Wake 12,000 0.04 8. Town of Morrisville - Perimeter Park WWTP as Wake 25,000 0.12 9. Town of Morrisville - Aviation Pkwy. WWTP as Wake 25,000 0.11 10. Lake Royale Resort as Franklin 4,000 0.08 11. Days Inn WWTP as Durham 8,000 0.06 12. Cedar Village Apartments Chatham 8,000 0.42 13. Carolina Meadows Chatham 24,000 0.76 14. Pope Industrial Park Wake 12,000 0.17 15. Plantation Inn WWTP Wake 18,000 3.90 16. River Mills Subdivision Wake 36,000 1.40 17. Carolina Trace Subdivision Lee 30,000 0.61 18. Bristol Myers Inc. Wake 40,000 0.25 19. Tradewinds Subdivision Wake 25,000 0.78 20. Riverwalk Subdivision Wake 40,000 0.23 21. Wildwood Green Subdivision Wake 1,000 0.01 22. Hawthorne Subdivision Wake 50,000 0.79 23. Beachwood Subdivision Wake 10,000 0.27 24. Indian Creek Subdivision Wake 12,000 0.23 25, Cottonwood Subdivision Wake 20,000 1.10 26. Deerchase Subdivision Wake 5,000 0.15 27. Mill Run Subdivision Wake 30,000 0.74 28. Wake Technical College Wake 25,000 0.19 29. Briarwood Farms Subdivision Wake 20,000 0.40 30, Mallards Crossing Subdivision Wake 25,000 0.28 31. Kings Grant Subdivision Wake 12,000 0.13 32. Ashley Hills Subdivision Wake 20,000 0.20 33. Willowbrook Subdivision Wake 12,000 0.27 34. White Oak Subdivision Wake 8,000 0.13 35. Riverview Wake 82,000 1.39 36. Town of Holly Springs Wake 20,000 0.37 37. Shearon Harris WWTP Wake 20,000 0.73 38. Creekside MHP as Wake 9,000 0.15 39. Forty Niners Club Wake 6,000 0.09 40. Countryside MHP Plant A as Wake 9,000 0.04 41. Countryside MHP Plant B as Wake 9,000 0.02 42_ Whippoorwill Valley Wake 5,000 0.30 43, Barclay Downs $ Wake 100,000 1.94 44. Town of Clayton Johnston 50,000 0.48 45. Cross Creek Subdivision a Wake 20,000 0.31 46. Knightdale Estates Subdivision Wake 12,000 0.72 4 11 Estimated Volume Required Source County l n l ar Acre cr 47. Trails Subdivision a Wake 12,000 0.28 48, Amherst Subdivision Wake 4,000 0.02 49. East Wake High School Wake 12,000 0.52 50. Gaylord Wake 16,000 0.07 51. Town of Enfield Halifax 140,000 13.31 52. River Landing Wake 12,000 0.11 53, River Bend, Lakeside Wake 12,000 0.07 54. Neuse Crossing Wake 12,000 0.11 55. Fuquay Varina WWTPc Wake 900,000 28.18 56, Miles, Inc. WWTPa Johnston 5,200,000 36.65 TOTALS 8,164,000 143.16 Denotes sludges that shall be applied to lands which are to be covered with grass or corn crops ONLY, otherwise additional acreage will be necessary to accommodate other cover crops. as Denotes sludges that shall be applied to lands which are to be covered with coastal bermuda grass ONLY, otherwise additibnal acreage will be necessary to accommodate other cover crops. b The alum sludge from the Pittsboro WTP shall be mixed with domestic sludge at a ratio between 1:5 and 1:10, alum sludge:domestic sludge. A pH between 6.0 and 7.5 shall be maintained on the fields which receive the alum/domestc sludge mixture. A 10.5 acre tract shall be identified which will receive the alum sludge. To meet the vector attraction requirement, this residual must be injected unless documentation can be provided that supports another alternative. d A specific area of land (minimum of 36.65 acres) will be dedicated to receive wastewater residuals from Miles, Inc. WWTP. The metal loading rates shall not exceed the following Cumulative Pollutant loading rates: Kilograms Pounds Parameters Der Hectare Der Acre Arsenic 41 36 Cadmium 39 34 Chromium 3,000 2,677 Copper 1,500 1,338 Lead 300 267 Mercury 17 15 Molybdenum ---- ---- Nickel 420 374 Selenium 100 89 Zinc 2,800 2,498 5 7. The pollutant concentrations in the residuals which will be applied to the land shall not exceed the following Ceiling Concentrations (Dry Weight Basis): Parameters mglkg Arsenic 75 Cadmium 85 Chromium 3,000 Copper 4,300 Lead 840 Mercury 57 Molybdenum 75 Nickel 420 Selenium 100 Zinc 7,500 8. Upon classification of the facility by the Certification Commission, the Permittee shall employ a certified land application/residuals operator to be in responsible charge (ORC) of the land application program. The operator must hold a certificate of the type classification assigned to the land application program by the Certification Commission. The Permittee must also employ a certified back-up operator of the appropriate type to comply with the conditions of Title 15A NCAC 8A, .0202. 9. Adequate procedures shall be provided to prevent surface runoff from carrying any disposed or stored residuals into any surface waters. 10. Surface applied residuals will be plowed or disced within twenty-four (24) hours after application on lands with no cover crop established. 11. For areas that are prone to flooding or within the 100 -year flood elevation, residuals may be applied only during periods of dry weather. The residuals must be incorporated into the soil within twenty-four (24) hours after application. 12. Appropriate measures must be taken to control public access to the land application sites during active site use and for the 12 -month period following the last residual application event. Such controls may include the posting of signs indicating the activities being conducted at each site. 13. Adequate provisions shall be taken to prevent wind erosion and surface runoff from conveying pollutants from the residuals application area onto the adjacent property or into any surface waters. 14. Residuals shall not be applied in inclement weather or until 24 hours following a rainfall event of 112 -inch or greater in 24 hours. Any emergency residuals disposal measures must first be approved by the Division of Environmental Management. 15. Residuals shall not be applied to any land application site that is flooded, frozen or snow- covered. 16. Residuals shall not be applied at rates greater than agronomic rates, unless authorized by the Division. 17. Animals shall not be grazed on an application site for 30 days after residuals application. Application sites that are to be used for grazing shall have fencing that will be used to prevent access after each application. R 18. Food crops, feed crops and fiber crops that don t come in contact with the residuals shall not be harvested for 30 days after residuals application. 19. Food crops with harvested parts that touch the residual/soil mixture and are totally above the land surface (ex. tobacco, melons, cucumbers, squash, etc.) shall not be harvested for 14 months after residuals application. 20. Food crops with harvested pans below the surface of the land (root crops such as potatoes, carrots, radishes, etc.) shall not be harvested for 20 months after application of residuals when the residuals remain on the land surface for four (4) months or longer prior to incorporation into the soil. 21. Food crops with harvested parts below the surface of the land shall not be harvested for 38 months after application of residuals when the residuals remain on the land surface for less than four (4) months prior to incorporation into the soil. 22. Turf shall not be harvested for 1 year after residuals application if the turf is to be placed on land with a high potential for public exposure. 23. Freeboard in the wastewater residual lagoons shall not be less than two (2) feet at any time. 24. No wastewater residuals shall remain in the lagoons for a period greater than two (2) years. If residuals remain in the lagoons for longer than two (2) years without being land applied, this facility shall then'be considered "surface disposal" as established in 40 CFR Part 503 and the appropriate permit for "surface disposal" must be obtained from the Division. III. MNITORING AND REPORTING REQUIREMENTS Any monitoring (including groundwater, surface water, residuals, soil, or plant tissue analyses) deemed necessary by the Division of Environmental Management to insure protection of the environment will be established and an acceptable sampling and reporting schedule shall be followed. 2. Proper records shall be maintained by the Permittee tracking all application activities and kept on file for a minimum of five years. These records shall include, but are not necessarily limited to the following information: a) source of residuals b) date of residual application e) location of residual application (site, field, or zone #) d) method of application e) weather conditions (sunny, cloudy, raining, etc.) f) soil conditions g) type of crop or crops to be grown on field h) volume of residuals applied in gallons/acre, dry tons/acre or kilograms/hectare i) annual and cumulative totals of dry tons/acre of residuals, annual and cumulative pounds/acre of each heavy metal (which shall include, but not be limited to arsenic, cadmium, chromium, copper, lead, mercury, molybdenum, nickel, selenium and zinc), annual pounds/acre of plant available nitrogen (PAN), and annual pounds/acre of phosphorus applied to each field. j) source, date, indication as to whether or not the residuals were stabilized prior to going into the lagoons, and the quantity of wastewater residuals placed in the two storage lagoons (1,000,000 gallon and 400,000 gallon) and the proper identification of the receiving wastewater residual lagoon k) date, indication as to whether or not the residuals were stabilized or retested for pathogen reduction, and the quantity of wastewater residuals removed from the two storage lagoons (1,000,000 gallon and 400,000 gallon) and the proper identification of the wastewater residual lagoon 7 3 . A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted of each site receiving residuals in the respective calendar year and the results 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 Calcium Copper Magnesium Base Saturation (by calculation) Cation Exchange Capacity Manganese Potassium Percent Humic Matter Sodium pH Zinc Phosphorus The Standard Soil Fertility Analysis (see above) and an analysis for the following metals shall be conducted once prior to permit renewal on soils from each site which has received sludge during the permit cycle. Arsenic lead Nickel Cadmium Mercury Selenium Chromium Molybdenum 4. A�residuals analysis will be conducted annually on each residual listed in Condition H 4, and the results maintained on file by the Permittee for a minimum of five years. if land application occurs at a frequency less than annually, a residuals analysis will be required for each instance of land application. The residuals analysis shall include but is not necessarily limited to the following parameters: Arsenic Aluminum Cadmium Ammonia -Nitrogen Chromium Calcium Copper Nitrate -Nitrite Nitrogen Lead % Total Solids Mercury pH Molybdenum Phosphorus Nickel Plant Available Nitrogen (by calculation) Selenium Potassium Zinc Sodium Magnesium TKN 5. A Toxicity Characteristics Leaching Procedure (TCLP) analysis shall be conducted by the Permittee annually on the following residuals: Town of Fuquay Varina Town of Wendell Town of Clayton Miles, Inc. The TCLP analysis shall include the following parameters (please note the regulatory level in mg/L in parentheses): Arsenic (5.0) Barium (100.0) Benzene (0.5) Cadmium (1.0) Carbon tetrachloride (0.5) Chlordane (0.03) Chlorobenzene (100.0) Chloroform (6.0) Chromium (5.0) o -Cresol (200.0) m -Cresol (200.0) p -Cresol (200.0) Cresol (200.0) 1,4 -Dichlorobenzene (7.5) 1, 1 -Dichloroethylenc (0.7) Endrin (0.02) Hexachlorobenzene (0.13) Hexachloroethane (3.0) Lindane (0.4) Methoxychlor (10.0) Nitrobenzene (2.0) Pyridine (5.0) Silver (5.0) Toxaphene (0.5) 2,4,5 -Trichlorophenol (400.0) 2,4,5 -TP (Silvex) (1.0) 2,4-D (10.0) 1,2-Dichloroethane (0.5) 2,4-Dinitrotoluene (0.13) Heptachlor (and its hydroxide) (0.008) Hexachloro-1,3-butadiene (0.5) Lead (5.0) Mercury (0.2) Methyl ethyl ketone (200.0) Pentachlorophenol (100.0) Selenium (1.0) Tetrachloroethylene (0.7) Trichloroethylene (0.5) 2,4,6 -Trichlorophenol (2.0) Vinyl chloride (0.2) 6. All residuals included in this permit must be monitored annually, from the date of permit issuance, for compliance with condition 113 of this permit. Data to verify stabilization and vector attraction reduction of the residuals must be maintained by the Permittee. The required data is specific to the stabilization process utilized, but should be sufficient to clearly demonstrate compliance the Class A pathogen requirements in 40 CFR Part 503.32(x) or with the Class B pathogen requirements and site restrictions in 40 CFR Part 503.32(b) and'the vector attraction reduction requirements in 40 CFR Part 503.33. In addition, the EPA certification statements concerning compliance with pathogen requirements, vector attraction reduction requirements and management practices must be completed annually by the proper authority or authorities if more than one is involved, either the person who prepares the residuals, the person who derives the material, or the person who applies the residuals. 7. Three copies of all required monitoring and reporting requirements as specified in conditions 1111, 111 2, 1113, 1114, III 5 and 1116 shall be submitted annually on or before March 1 of the following year to the following address: NC Division of Environmental Management Water Quality Section Facility Assessment Unit PO Box 29535 Raleigh, NC 27626-0535 Noncompliance Notification: The Permittee shall report by telephone to the Raleigh Regional Office, telephone number (919) 571-4700, as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence with the land application program which results in the land application of significant amounts of wastes which are abnormal in quantity or characteristic. b. Any failure of the land application program resulting in a release of material to receiving waters. c. Any time that self-monitoring information indicates that the facility has gone out of compliance with the conditions and limitations of this permit or the parameters on which the system was designed. d. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate residual treatment L1 e. Any spillage or discharge from a vehicle or piping system transporting residuals to the application site. Persons reporting such occurrences by telephone shall also file a written report in letter form within 15 days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. IV. GROUNDWATER REQUIREMENTS 1, The interior surfaces of the lagoon shall be completely lined with a 30 -mil (minimum) thick liner. Following installation and inspection of the lagoon liner, and prior to waste disposal operations, certification of the liner's compliance with approved construction specifications and the liner's integrity must be provided to the Division of Environmental Management, Groundwater Section, by the project engineer. 2. The three (3) existing monitoring wells, MW -1, MW -2 and MW -3 located at the Charles B ouldin site in Chatham County (as depicted on Attachment A) shall be sampled every February, lune and October for the following parameters: NOs SO4 NO2 pH Total Ammonia TOC Total Dissolved Solids Lead Fecal Coliforms Total Suspended Solids Cadmium Chloride Water Level Volatile Organic Compounds - In October only (by Method 1 or Method 2 below) Method 1: Method 6230D (Capillary - Column), "Standard Methods for the Examination of Water and Wastewater", 17th edition, 1989 Method 2: Method 502.2 "Methods for the Determination of Organic Compounds in Drinking Water", United States Environmental Protection Agency - 600/4- 88/039. The measurement of water level must be made prior to sampling for the remaining parameters. The depth of water in each well shall be measured from the surveyed point on the top of the casing. The measuring points (top of well casing) of all monitoring wells shall be surveyed to provide relative elevations of the measuring point for each monitoring well. If TQC concentrations greater than 10 mg/1 are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents comprising this TOC concentration. If the TOC concentration as measured in the k r nd monitor well exceeds 10 mg/l, this concentration will be taken to represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above. If any volatile organic compounds are detected by method 6230D, or the equivalent method 502.2, then EPA methods 604 and 611 must also be run to detect other organic compounds which may be present. The results of all analysis specified in the monitoring requirements, including 604 and 611 if required, must be submitted simultaneously. 10 The results of the sampling and analysis shall be sent to the N.C. Division of Environmental Management P. a. Box 29535 Raleigh, N.C. 27626-0535 on Form GW -59 (Compliance Monitoring Report Form) every March, July and November. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is for the disposal system constructed after December 31, 1983 is established at either (1) 250 feet from the waste disposal area, or (2) 50 feet within the property boundary, whichever is closest to the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond the Compliance Boundary is subject to immediate remediation action in addition to the penalty provisions applicable under General Statute 143-215.6A(a)(1). In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the disposal systems midway between the Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of standards at the Review Boundary shall require remediation action on the part of the permittee. 4. Any groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 5. No land application of waste activities shall be undertaken when the seasonal high water table is lest than three feet below land surface. V. INSPECTIONS The Permittee or his designee shall inspect the residuals storage, transport, and application facilities to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall maintain an inspection log or summary including at least the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of five years from the date of the inspection and shall be made available to the Division of Environmental Management or other permitting authority, upon request. 2. Any duly authorized officer, employee, or representative of the Division of Environmental Management may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the application site or facility at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be 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 land application activities are carried out in accordance with the conditions of this permit, the supporting materials, and in the manner approved by this Division. 2. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data. 3. This permit is not automatically transferable. In the event that there is a desire for the facilities to change ownership or a name change of the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 11 ki The following are approved sites for residuals application (see attached map[s]): Application Area [acres] OwnerlLessee Site No. County (excludingfbu fern Charles Bouldin 1 Chatham 5.5 2 Chatham 18.9 3 Chatham 5.9 6 Chatham 3.7 7 Chatham 2.9 8 Chatham 3.0 9 Chatham 10.0 10 Chatham 5.9 11 Chatham 9.7 12 Chatham 1.9 13 Chatham 4.2 14 Chatham 5.2 15 Chatham 22.3 16 Chatham 7.3 17 Chatham 17.6 18 Chatham 1.2 19 Chatham 3.8 21 Chatham 4.9 22 Chatham 2.6 23 Chatham 7.4 24 Chatham 2.2 25 Chatham 6.8 Berney Griffies 200 Chatham 5.3 201 Chatham 3.8 202 Chatham 13.7 203 Chatham 8.7 M.A. Perry Bobby Murray Wallace Woodall e 601a Chatham 65.0 701c Wake 6.52 702b, c Wake 9.0 703b, c Wake 4.46 704b, c Wake 12.6 706c Wake 1.8 801d Chatham 51.7 8024 Chatham 51.3 8034 Chatham 34.0 8044 Chatham 20.0 Total Acreage 440.78 a Please be advised that the land lying south of the unnamed tributary to Shaddox Creek (approximately 33.0 acres) is unsuitable for the land application of sludge due to floodplain, slope, and soil concerns; therefore, only 55.0 acres of the originally requested 98.0 acres is suitable for the land application of sludge. b The cross -hatched areas of these fields shown on the attached map shall not be used for sludge application due to shallow depth to bedrock (<12 inches) and sandy soils. 12 The fields that are not cross -hatched shall be limited to sludge application only during the months of April through October, inclusive. d Sludges may not be applied to the areas of these fields that have soils designated as "1C" and "4" due to streams, shallow soils, steep slopes, and shallow depth to bedrock. e 'Mese fields have been calculated using 50 feet to property lines. All other fields are based on 100 feet to property lines. 5. Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Environmental Management in accordance with North Carolina General Statute 143-215.6(a) to 143-215.6(c). 6. The annual administering and compliance fee must be. paid by the Permittee within thirty (30) days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205 (c)(4). 7. The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal) which have jurisdiction. 8. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Commission will review the adequacy of the facilities described therein, and if warranted, will extend the permit for such period of time and under such conditions and limitations as it may deem appropriate. 9. This permit may be modified, or revoked and reissued to incorporate any conditions, limitations and monitoring requirements the Division of Environmental Management deems necessary in order to adequately protect the environment and public health. 10. This permit shall become voidable unless the agreements between the Permittee and the landowners/lessees are in full force and effect. The land owner agreements are considered expired concurrent with the expiration date of the permit and must be renewed at the same time the permit is renewed. Permit issued this the thirty-first day of January, 1995 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston H4vard, Jr., P.E.,)Director Division of E ironmental Management By Authority of the Environmental Managemnt Commission Permit No. WQ0000506 13 Permit No. WQ0000506 January 31, 1995 • T, , 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 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. Signature Date 14 Registration No. '94 10:09AN P.3.4 �jl 1 Its irn MERRY OAKS, N. C. (; } `r = �.A;1z U 1 (FORMCI;LY NEW HOPE DAM) N3537.5—W7900/7,5 ;. . � ��`t 1 1969 \ `� �✓ `— �� � V f PHOTOREVISE13 1981 `� f % _ -bm d ` AMA 5155 11 NE-82R1E5 V842/ ! , N �'' I \ % 1/ ten- I go" . I � j-••` \� % {�-...rill')/ d i1✓� !'. "� ~�� 1 .�Q ^-. /\ l i �l ter- t SI `� J !r/} f I`r � ✓�• 666 � I X11. TD i :�._ sem'.• , 14 Tract 2 MAORANGLE LOCATION C) MONCURE, N. C. j ✓. rvY:g -,' c r �-- ` N3530 --W7900/715 1970 t` OREVISED 1981 QT �.. OMA 5155 13 SE --SERIFS V847 \ � Map 2. Topographical Map of Site W9 SCALE 1; 24 WO t� Z Y 0 [MILE . i 1D00 0 1000 2000 3000 40p0 5000 60W 7000 FEET 1 KILOMETER r0t>ITniik1 INTi7RVA1 T!1 FFFT •r'4 14f 1 i� c Y 4 i ` I J� L ✓ � i � fI} 11 ll C U/ � ] � p Lr E \ • is IC n l E G F N v LCn /�• r �V d-�il. it �_..�.-.--- InC.rn�t CS •nt Y�Y�C-Tv rKsv D^c��y ! '1" ` �4 iN / �� �`-9' Oi. NlgnV.Y I . 1 u,fC-09 Houk. or :uitding o cr..ury i 1 W4.01 Lin. 4C I � I I.rrcv •r.. 1 1 1 • Ceod.d SDi Approx . Scale 610, Map 5 - Soils Map of Field 804 to include buffer's LEtgoon SILe Location Wallace Woodall l� field 802 116 ® ® I r- ® 1 I field 801 i } ! 'S ------------------ GRAPHIC SCALL ]]0 0 03 J30 Geo 1.270 ;H FEE7 1 inch = Soo !t r -----------------------------i 1 1 � 4 i G I � I I Lentl PrerlanalY dealtnel•d I ! e dlcolal enmpeelbiA I .Il. ..d kll oLnn .nol• 1 1 . nppllcntlan dl•, I U- ,•11 lot olhnr .t {� •Prll•-Roo of —14-1, t I I � I 1 � � 1 - - Rudd ---- Proper -Ly bine ---- l-airld Oordcr - Drainage way ® Residoi>re o Well illaS s: Lagoon SiLe Location _ Title z: Field 802 - Lagoon Site _ Location: Unit.: $rnlr Chatham C luetielal i Co.,I an ]— -�_- !- UPnarn by; T AV"Agri—Weate Technology, !na y 35oA Sloan Court Eheck.:d by: 1' Ura -Ing Ilurnhrl; WW-S1a 0- 5 1LU -.------- -.- - -- .- . ,PING SCALE - FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS � Name of Facility: A :rQ 6J�,aL ICgr 0�C�Z Owner or Contact Pers Mailing Address:9-C V Alf - County. Telepho e: D Present Classification: &. New Facility Eyisting FacilitVVy -NPDES Per, a. N90,P_Nondisc. Per. ND.WQ Health Dept.Per No. Rated by: _ �`� _ Telephone: 521-1200 Dale:19V-11/l/ Reviewed by: Health Dept. Te:sphone: Regional Office Te'aphone: Central Office Te°ephone. ORC: Grade: TE:epha Check Classification(s): Subsu e Spray IrrigationLand Application Wastewater Classification: (CircleOne 1 fl III IV Total Points: Is It�LFLA,NT PRQQFS.SFS ANf) RFI ATFD QXWTRO ECA JIPMELE WNK�H ARF AN IdjE: FkAj PART OF INDI �iAL PROD_ L� i� I l TRF QD�LSIPEREQWASIETRELT—MENIFOR TPE PURPOSE OF 1FY_'ATlCNP 7 YS Y 1 YOFS TABIC AND GRAVITY NITRIFCAMON LINF,S ARE_Q�EMPT FROM Ql ASSEOATKx7 SUBSURFACE CLASS! FICATK]N (check all units that apply) 1. seplic tanks 2. pump tanks 3. siphon or pump -dosing systems 4. sand filters 5. grease trapfinfercepior 6, oil/waler separators 7. gravity subsurface teealmenl and disposal: 8, pressure subsurface treatment and disposal-, ----------------- SPRAY IRRIGAT)ON CLASSJfiCATY.'td (check all unils that apply) 1. preliminary Irealmeni (dsfWtion no. 32 } 2. lagoons 3. septic tanks 4, pump tanks 5. pumps 6. sand fillers 7. grease trap(nlerceplo( 8, oil/waler separators 9. disinfection 14. chemical addition for nutrient/algae conical 11. spray irrigation of wastewater In addition to the above —classifications, pretreatment of wastewater In excess of these components .shal be rated usin the point rating system and will require an operator with an appropriate dual certification LAND APP ATIOMIRESIDUALS CLASSIFICATION (Applies only to permit hofder) i. and application of biosolids, residuals or contaminated soils on a designated site. WASTEWA TER TREATMENT FACILITY CLASSIFICAT)ON The following systems shall be assigned a Class I classilicalion, lirila&5 the flow is of a sign;licant q,=_nlily or the technc __9y is unusually complex, to require consideration by the Commission on a case-by-case basis: (Check if Appropriai.) i. Oil/waler Separator Systems consisting only of physical separation, pumps and disposal; 2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, 4jisinfsz6on and direct discharge; 3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical I:eztmenl [or algae or nutrient control, and direct discharge; 4. Closed-loop Recycle Systems; 5, Groundwater Remediation Systems consisting only of oillwaler separators, pumps, air -stripping, carbon adscrpliDn, disinfection and dispo s. -J; 6. Aquaculture operations with discharge to surface waters; 7. Wa!er Plant sludge handling and back -wash water treatment; S. Seafood processing consisting of screening and disposal - 9. Single-family discharging systems, with lite exception of Aerobic Treatment Units, will be classified t! permiila-i aaer July t, 1493 or if upon inspection by the Division, it is found that the system is not baing adequately operaled or maintained. Sudi systems will be notified of the classification or reclassification by the Commission, in wrii'ng.. ............................................................................................-... Class11.........................................................................................................26.50 Points CtassIV............................................ ............................................................ 51-65 Points C.iasz N ..... ............................................. ...................... :...... ........................ 6s -Up Points Faciiiiiss having a rating of one Through four points. Inclusive, do no; require a certilled operator. Facilities having an activated sludge process Will be assigned a minimum classification of Class It. Facilities having treatment processes for the rBmoval of metal or cyan::;- will be assigned a minimum classification of Class R. Facdiiies having Imatmarrl procosses for the biological removal of phosphorus will be assigned a rnlnimum tlass rasion of Class 111. ------------------------------------------------------------- .0004 DERNFIQNS The lotiowing definitions shall apply throughout Ihls Subchapler. (1) ACivatad Carbon Beds. A physicavchomical rne!rrsd for reducirc soluble organic material from wasiewa:er effluent; The column -type beds used in INS mathad call[ have a flow rate varying from two to eight gallons per r..'-nute per square fool and may be either vpflow or downflow carbon beds. Carbon mai' : may not be reganera[ed an the wastewater treatment plant site; (2) Aerated Lagoons. A basin in which all solids vs maintained in suspension and by which biological oxida:un or organic mater is reduced through aaiiici� acce�arled transfer of oxygen or a flow•1hrough basis; (3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen in a liquid by spraying, agnalion or diffusion:(�a) Ex;endcd Aarmion- An activated sludge process utilizing a rnarnum hydraulic detention time of 16 hours. (4) AQ -'i Rurally managed site. Any site on which a crop is produciu,, managed, and harvested (Crop includes grasses, grains, IreeS, e(c.); (5) Ai-, Stripping. A process by which the ammoniun ion is first converted to dissolved ammonia (pH adjusirzent) with the ammonia then ralaased lc 1h9 aims ,bene by physical means; or other similar processes which rerncve petroleum products such as benzene, toluene, and xylerva; (6) cZ-bon RBganeratlon_ The regerlerallon of exhausted carbon by the use of a lunate to provide extreme.; high temperdures which volati.Ze and oxidize abso.�_-d impuri',ies; (7) Cz.•bonaceo s Stage. A stage of wastewater irealmen[ designed to ichieve ,'secondary' efts lent limits; (E) Ca-xrduge. A mechanical device in which centrifugal force is used to separate solids from liquids or to separale liquids of dilloron: d`3nsk'Os; (9) Clxracal A.ddtifon Sysloms- The addition of the^lcal(s) to waste•vrater at an application print for purposfs of Improving solids removal, pH adjustment. all-a!'r4 conlroL etc.; the capability to ezperimanl with different chemicals and crdlorent applicalion points to a_hieve a Specific result will bo considemd one sys:e.-_� the cacability to add chemical(s) to dual units vrill be rated as orv- system; capability to add a chemic;[ at a different application points for dit18mill pure -*s %,% res.A in the sysloms being rated as separate systens; (16) Cwiriical Stage Conditioning. Tho addition of a chemical compound such as ilme, lotric chloride, or a iriyner to wet sludge to coalesce IFa mass pr'sor its i'>,7-.7.!tion 10 a dewatering dovice; (15) &&_sed Cyda Systems. Uso ul holding ponds or holding tanks for contalnmont of wastex•alar conraining inorganic, cion -toxic materials Irom sznd, cr,:.Rd stone or otFar zimilar operations. Such systens shall carry : maximum of Ivro points regardless of purnping facilitias or any other appurtonarces; (17) Ccr..anad R-1—al of Carboracaous 500 and Nitrogenous Rcroval by Nitrification. A sirr„ta stago systo m roouired to achisvo permit ati[uont [i its on 134' and a=,i,-*a:ia &-oven within the same biological reac or, aorra-src The parrial or complcto roduCior: of tosidual Oko re in a liquid by any chorcal or pli"iczl process; (tt) n2r,}�:iii Process. The conversion of niirare-nitrogen to dreogon gas; ................................... ................ .............................. dMusod r r.)-chanlcat..............................................2 (m) Reverse 0sr"OSIS............ " `-' ...............................5 (n) Sand or Mixod-Modia Fiile:s - low rate ................. .." 2 ...........................................................5 high rate_.' .................................................................... (o) for of l ld..1 5 Treatmant procossosor romometal or cyana...................... . (p) ireatmant processes for rornoval at toxic materials other than mola.l or cyanldo...............---.....15 (7) SWMETREATMENC (a) Sludga 0€geslfon Tank - Healed (anaerobic) ................................... ........................................................... 10 Aerobic ....... .................................... ....................... .............................. ...5 ....................................... ! (-b) Unheated(anaeroblc)...........................................................:...................................................................A .-Sludge Stabilization (chemicalorthermal) ............... ..................... ..... .................................................. ......... (c) Sludge Drying Bads=Gravity....................................................................................... :..2 ......................... tVacuum Assistod.............................................................................................................---......................5 (d) Sludge Elvidallon.................. (o) Sludge Condhloner (chemical or thermal) ................... ___ ........ E`......................,t t (I) ................................ Sludge Thickener (gravity).........................................................................•............ .,5 (g } Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(i))...........:.................................................9 h Slud a Gas Utilize'lion (inductingas storage (1) Sludge Holding Tank Aerated ........................ ........................ ....... .......,..........-................................. . Nor>-aeraled...................... i (J} Sludge Incimralor (not lnduding activated carbon regeneration)................................................................to (k) Vacuum Fher, Centrifuge, or Filer Press or other similar dewatering devices ....... ............................................ t o (8) RESIDUALS LMLIZATION USPOSAL Cinduring Incinerated ash) (a) Lagoons .................. .................................................................................................... .... 2 (b) Land Appk'calien (suriace and subsurface) (see dallnition 22a) by contracting to a land app; zmion operator or landfill operator who Fotds the land appiicalian permit orlandiid perrdl.............................................................................................................I——....................2 (c) Dedicated Landfill(burial) by the permi;tae of the waslewaler Ireavreni facility...............................................5 (a) Chlorination............................................_...................................-....._.........5 (b) Dechlorinalion................................................................................................................_..........-.........•---5 (c) Ozone................................................................................................................5 {d} Fiadlation................................ ............................ ....................................... __........................................ ..5 (10} CHEMICAL ADDITION SYSTEM(S) ( see delinhion No. 9) [not applicable to chemical addlltom rated as hem (3)0). (6)(:j). (6)(b), (7)(b), {7)(e), (9a), (9)(b) or (9)(c) 5 points each: ......................................................................................... 5 .. 5 ....................................................................................... ....... -w j (5 1) MLSC81 ANECUS UNITSrrrFOCESSES (a) Holding Ponzs, Holding Tanks or Settling Ponds for Organic or Toric 1.1jladals Including wastes Irom r'ning operations containing nitrogen of phosphorus compounds In amounts signilicantly greater than Is common fordomestic wastewaler..................... .................. __.................................................................... ............. 4 (h) Eliluont Row Equalization (ncl applicable to storage basins which are inherent In land appiicalion systens)...... 2 (c) Stage Disch:rga (not applicable to storage baslrs Inherent In land a;9lic2Con systems)..................................5 (d) Pumps................................--...............................................................7 (e) Stxnd•By Powar Supply.............................................................................................................................3 (I) Thermal Pollvlon Comm[ Nv;ca............................................... TOTALPOINTS ............ .............. ........................................ I...... ClASSF)CATCq ............................................................................................-... Class11.........................................................................................................26.50 Points CtassIV............................................ ............................................................ 51-65 Points C.iasz N ..... ............................................. ...................... :...... ........................ 6s -Up Points Faciiiiiss having a rating of one Through four points. Inclusive, do no; require a certilled operator. Facilities having an activated sludge process Will be assigned a minimum classification of Class It. Facilities having treatment processes for the rBmoval of metal or cyan::;- will be assigned a minimum classification of Class R. Facdiiies having Imatmarrl procosses for the biological removal of phosphorus will be assigned a rnlnimum tlass rasion of Class 111. ------------------------------------------------------------- .0004 DERNFIQNS The lotiowing definitions shall apply throughout Ihls Subchapler. (1) ACivatad Carbon Beds. A physicavchomical rne!rrsd for reducirc soluble organic material from wasiewa:er effluent; The column -type beds used in INS mathad call[ have a flow rate varying from two to eight gallons per r..'-nute per square fool and may be either vpflow or downflow carbon beds. Carbon mai' : may not be reganera[ed an the wastewater treatment plant site; (2) Aerated Lagoons. A basin in which all solids vs maintained in suspension and by which biological oxida:un or organic mater is reduced through aaiiici� acce�arled transfer of oxygen or a flow•1hrough basis; (3) Aeration. A process of bringing about Intimate contact between air or high purity oxygen in a liquid by spraying, agnalion or diffusion:(�a) Ex;endcd Aarmion- An activated sludge process utilizing a rnarnum hydraulic detention time of 16 hours. (4) AQ -'i Rurally managed site. Any site on which a crop is produciu,, managed, and harvested (Crop includes grasses, grains, IreeS, e(c.); (5) Ai-, Stripping. A process by which the ammoniun ion is first converted to dissolved ammonia (pH adjusirzent) with the ammonia then ralaased lc 1h9 aims ,bene by physical means; or other similar processes which rerncve petroleum products such as benzene, toluene, and xylerva; (6) cZ-bon RBganeratlon_ The regerlerallon of exhausted carbon by the use of a lunate to provide extreme.; high temperdures which volati.Ze and oxidize abso.�_-d impuri',ies; (7) Cz.•bonaceo s Stage. A stage of wastewater irealmen[ designed to ichieve ,'secondary' efts lent limits; (E) Ca-xrduge. A mechanical device in which centrifugal force is used to separate solids from liquids or to separale liquids of dilloron: d`3nsk'Os; (9) Clxracal A.ddtifon Sysloms- The addition of the^lcal(s) to waste•vrater at an application print for purposfs of Improving solids removal, pH adjustment. all-a!'r4 conlroL etc.; the capability to ezperimanl with different chemicals and crdlorent applicalion points to a_hieve a Specific result will bo considemd one sys:e.-_� the cacability to add chemical(s) to dual units vrill be rated as orv- system; capability to add a chemic;[ at a different application points for dit18mill pure -*s %,% res.A in the sysloms being rated as separate systens; (16) Cwiriical Stage Conditioning. Tho addition of a chemical compound such as ilme, lotric chloride, or a iriyner to wet sludge to coalesce IFa mass pr'sor its i'>,7-.7.!tion 10 a dewatering dovice; (15) &&_sed Cyda Systems. Uso ul holding ponds or holding tanks for contalnmont of wastex•alar conraining inorganic, cion -toxic materials Irom sznd, cr,:.Rd stone or otFar zimilar operations. Such systens shall carry : maximum of Ivro points regardless of purnping facilitias or any other appurtonarces; (17) Ccr..anad R-1—al of Carboracaous 500 and Nitrogenous Rcroval by Nitrification. A sirr„ta stago systo m roouired to achisvo permit ati[uont [i its on 134' and a=,i,-*a:ia &-oven within the same biological reac or, aorra-src The parrial or complcto roduCior: of tosidual Oko re in a liquid by any chorcal or pli"iczl process; (tt) n2r,}�:iii Process. The conversion of niirare-nitrogen to dreogon gas;