Loading...
HomeMy WebLinkAboutWQ0004823_Final Permit_19910816State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor William W. Cobey, Jr., Secretary August 16, 1991 Mr. William E. Hollan, Jr., President Turnpike Properties, Incorporated 710-G Coliseum Drive Winston-Salem, North Carolina 27106 George T. Everett, Ph.D Director Subject: Permit No. WQ0004823 Turnpike Properties, Incorporated Pine Island - Planned Unit Development Subsurface Disposal System Currituck County Dear Mr. Hollan: In accordance with your application received March 15, 1991 we are forwarding herewith Permit No. WQ0004823 dated August 16, 1991 to Turnpike Properties, Incorporated for the construction and operation of a 225,000 GPD low pressure pipe subsurface wastewater disposal system. This permit shall be effective from the date of issuance until July 31, 1996, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of 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. Regional Offices Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem 704/251-6208 919/486-1541 704/663-1699 919/733-2314 919/946-6481 919/395-3900 919/761-2351 Pollution Prevention Pays P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer Mr. Hollan August 16, 1991 Page Two One set of approved plans and specifications is being forwarded to you. If you need additional information concerning this matter, please contact Mark Hawes at 919/ 733-5083. cereiy, r�14 eorge T. Evere cc: Currituck County Health Department Washington Regional Office Groundwater Section Training and Certification Unit Facility Assessment Unit Linwood Stroud, Stroud Engineering, P.A. Bill Gilbert, Quible and Associates, P.C. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH SUBSURFACE DISPOSAL SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Turnpike Properties, Incorporated Currituck County FOR THE construction and operation of a 225,000 GPD subsurface wastewater disposal system consisting of a bar screen, three 18,750 gallon aerated flow equalization tanks (to be constructed in three phases), a 150 cfm blower and dual 195 gpm surge pumps and high water alarm to serve the flow equalization tanks,a flow splitting device, three package type extended aeration wastewater treatment plants (to be constructed in three phases) each with dual 37,500 gallon aeration tanks, dual 9,360 gallon clarifiers, and a 6,820 gallon aerated sludge holding tank, four 508 cfrn blowers, a traveling bridge type tertiary filter unit with a filter area of 125 square feet, a back wash pump station with dual 100 gpm pumps, dual ultraviolet disinfection units with lamp cleaning equipment, a continuous recording totalizing flow meter, a 180 kW self activating standby generator, an effluent pumping station with dual 250 gpm pumps and high water alarm, a quadraplex effluent distribution pump station with four 130 gpm (1.5 hp) pumps (to be constructed in phases II and III) and high water alarms, three quadraplex dosing pump stations each with four 325 gpm (4.5 hp) pumps and high water alarms (to be constructed in three phases) and each to serve 8 low pressure pipe fields, approximately 24 low pressure pipe fields each with 1,440 linear feet of low pressure pipe (approximately 7,200 square feet) and repair area of equal size (approximately 172,800 square feet), and all the associated piping, valves, and appurtenances to serve the Pine Island Planned Unit Development with no discharge of wastes to the surface waters, pursuant to the application received March 15, 1991 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 July 31, 1996 and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS 1. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535. 2. The Washington Regional Office, phone no. (919) 946-6481, shall be notified at least forty-eight (48) hours in advance of backfilling 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. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as construction of additional or replacement wastewater treatment or disposal facilities. 4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to surface or groundwaters resulting from the operation of this facility. 5. This permit shall become voidable if the soils fail to adequately absorb the wastes and may be rescinded unless the facilities are installed, maintained, and operated in a manner which will protect the assigned water quality standards of the surface waters and ground waters. 6. Adequate measures shall be taken to divert stormwater from the disposal area and prevent wastewater runoff from the subsurface disposal field. 7. The sludge generated from these treatment facilities must be disposed of in accordance with General Statute 143-215.1 and in a manner approved by the North Carolina Division of Environmental Management. 8. A usable green area shall be maintained for wastewater disposal. The green area shall have the capability of accommodating the average daily flow of the facility being served without exceeding the loading rates of the green area. A "green area" as defined in 15 NCAC 2H .0404(g)(7) is an area suitable for waste disposal, either in its natural state or which has been modified by planting a vegetative cover of grasses or low growing shrubbery. 9. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 10. The following buffers shall be maintained: a) 100 feet between disposal area and any public or private water supply including wells b) 100 feet between disposal area and "SA and SB" classified surface waters c) 50 feet between disposal area and any stream, lake, river or natural drainageway d) 50 feet between disposal area and property lines e) 10 feet between disposal area and surface water interceptor drains or diversions (upslope) f) 25 feet between disposal area and surface water interceptor drains or diversions (downslope) and groundwater drainage systems. 11. A leakage test shall be performed on each of the quadraplex pump stations to insure that any infiltration/exfiltration occurs at a rate which does not exceed twenty (20) gallons per twenty-four (24) hour per 1,000 gallons of tank capacity. The engineers certification will serve as proof of compliance with this condition. II.0-RE—RATION AND MAINTENANCE REQUIREMENTS The facilities shall be properly maintained and operated at all times. OA 2. Upon classification of the facility by the Certification Commission, the Permittee shall employ a certified waster treatment plant operator to be in responsible charge of the wastewater treatment facilities. The operator must hold a certificate of the type and grade at least equivalent to the classification assigned to the wastewater treatment facilities by the Certification Commission. Once the facility is classified, the Permittee must submit a letter to the Certification Commission which designates the operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete. 3. The application rates to the disposal field shall not exceed 1.3 gpd/sf. 4. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater resulting from the operation of this facility. 5. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 6. A suitable cover shall be maintained on the LPP field(s) and the field(s) shall be routinely mowed. The clippings shall be periodically removed to prevent the build-up of thatch. 7. The screenings removed from the wastewater treatment plant shall be properly disposed of in a sanitary landfill. 8. An automatically activated standby power supply shall be on site and operational at all times. If a generator is employed as the alternate power supply, it shall be tested weekly by interrupting the primary power source. 9. The ultraviolet lamps and cleaning equipment shall be of the kind and type as specified in the plans and specifications approved by the Division. 10. The ultraviolet lamps shall be cleaned as necessary to maintain optimum light transmittance. 11. The flow measurement device shall be calibrated annually by a representative of a firm which is routinely engaged in the calibration of flow measurement devices. Records of the calibration, including all information pertinent to the calibration, shall be available during any inspection by Division staff. 12. Diffusers shall be cleaned as needed to assure adequate aeration. Records of maintenance shall be maintained by the permittee. III. MQN1J:QH;JNG AND REPORTING REQUIREMENTS 1. Any monitoring deemed necessary by the Division of Environmental Management to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. The low pressure lines shall be maintained as necessary (including purging of the lines and pressure testing) in order to ensure that they remain free of obstructing materials and that the pressure head on the laterals remains within the design specifications. The highest and lowest laterals on each subfield shall be checked (and adjusted as necessary) annually to ensure that the pressure heads are within the approved specifications. If adjustments are necessary to the highest and lowest laterals, the remaining laterals in that subfield shall also be checked and adjusted to the approved specifications. Adequate records showing all maintenance shall be maintained by the Permittee. These records should include but are not limited to the following: 3 3. 4. Items a) Individual dosing pump operation b) Individual field rotation c) High water alarms d) Residual pressure on highest and lowest lateral on each subfield Inspection Frequency Monthly Monthly Monthly Annually As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations: Parameter Monthly Averagea Daily Maximumb Flow MGD 0.225 BOD5 10 mg/l 15 mg/l NH3 as N 4 mg/1 6 mg/l TS S 20 mg/1 30 mg/l a Monthly average shall be the arithmetic mean of all samples collected during the reporting period. b Daily maximum shall be the maximum value of all samples collected during the reporting period. The effluent from the subject facilities shall be monitored by the Permittee at the point prior to discharge to the subsurface disposal field for the following parameters: Parameter BOD5, 5-day, 20C NH3 as N TSS Fecal Coliform Flow Settleable Matter NO3 TDS TOC Chloride Location of Measurement Sample Sampling Points Frequency Tome Effluent *2/Month Composite Effluent *2/Month Composite Effluent *2/Month Composite Effluent *2/Month Grab Influent or Effluent Continuous Recording Effluent Daily Grab Effluent **Triannually Grab Effluent **Triannually Grab Effluent **Trianually Grab Effluent **Triannually Grab The effluent pH shall not be less than 6.0 standard units nor greater than 4.0 standard units. * 2/Month sampling frequency only during the months of April through October. During t remainder of the year, these parameters shall be monitored monthly. ** Triannual sampling frequency shall correspond with triannual monitoring of wells required Groundwater monitoring conditions. If Groundwater sampling indicates or predicts problems with the compliance with Groundwa Standards, this permit will be modified to include additional and/or more restrictive limitations. Three copies of all operation and maintenance records (as specified in condition III 2) and all effluent monitoring data (as specified in condition III 3) shall be submitted on or before the last day of the following month to the following address: 10 NC Division of Environmental Management Water Quality Section Facility Assessment Unit PO Box 29535 Raleigh, NC 27626-0535 5. A record shall be maintained of all residuals removed from this facility. This record shall include the name of the hauler, permit authorizing the disposal or a letter from a municipality agreeing to accept the residuals, date the residuals were hauled, and volume of residuals removed. 6. A maintenance log shall be maintained at this facility including but not limited to the following items: a. Daily sampling results including residual chlorine, settleable matter, and dissolved oxygen in the aeration basin and at the clarifier weir. b. Visual observations of the plant and plant site. C. Record of preventative maintenance (changing of filters, adjusting belt tensions, alarm testing,diffuser inspections and cleanings, etc.). d. Date LPP lines were purged and pressures equalized. e. Date of calibration of flow measurement device. f. Date and results of power interruption testing on alternate power supply. 7. Noncompliance Notification: The Permittee shall report by, telephone to the Washington Regional Office, telephone no. (919) 946-6481 as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the wastewater treatment facility which results in the treatment of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a basin or tank; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. C. Any failure of a pumping station, sewer line, or treatment facility resulting in a by- pass of all or any portion of the influent to such station or facility. d. Any time that self -monitoring information indicates that the facility has gone out of compliance with its permit limitations. 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. 5 IV. GROUNDWATER l'4 TER REQUIREMENTS 1. The Permittee shall add a well sorted fine to medium grain sand to fill the low areas of the disposal site to an elevation above 7.0 feet mean sea level. 2. Prior to beginning waste disposal operations, five (5) monitoring wells, one (1) upgradient and four (4) downgradient, must be installed to monitor groundwater quality. The well(s) shall be constructed such that the the water level in the well is never above or below the screened (open) portion of the well at any time during the year. However,the exact location and construction details for these wells must be approved by the Washington Regional Office, from which a well construction permit must be obtained. 3. The monitoring wells shall be sampled initially after construction (and prior to waste disposal operations) and thereafter every April, August, and December for the following parameters: NO3 (10.0) TDS (500.0) TOC pH ( 6.5-8.5 standard units) Ammonia Nitrogen Chloride (250.0) Water Level Fecal Coliforms (1/100 ml) Orthophosphate Total Suspended Solids Volatile Organic Compounds - In December 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 measuring points (top of well casing) of all monitoring wells shall be surveyed to provide relative elevations of the measuring point for each of the monitoring wells. The depth of water in each well shall be measured from the surveyed point on the top of the casing. The numbers in parentheses represent the maximum allowable concentrations in groundwater for the various analytical parameters, as specified in 15 NCAC 2L [Groundwater Classifications and Standards]. Unless otherwise noted, the concentrations are given in parts per million. If TOC concentrations greater than 10 mg/l 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 backpTound monitor well exceeds 10 mg/1, 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 on The results of the sampling and analysis shall be sent to the N.C. Division of Environmental Management on Form GW-59 (Compliance Monitoring Report Form) every May, September, and January. 4. The C2zmpliance Boundary delineated on the attached site map for the disposal system is specified by regulations in 15 NCAC 2L, Classifications and Water Quality Standards applicable to the groundwater of North Carolina. An exceedance of Groundwater Quality Standards beyond the Compliance Boundary is subject to penalty provisions applicable under General Statute 143-215.6(1)a. The sale of property, by the Permitme, which is within or contiguous to the disposal system site may alter location of the Compliance Boundary. For facilities permitted on or after December 30, 1983, the Compliance Boundary is established at the lesser of 250 feet from the subsurface disposal fields or 50 feet within the property boundary. If the title to any property which may affect the location of the Compliance Boundary is changed, the permittee shall notify the Division Director within 14 days. The Director shall then establish a modified Compliance Boundary which will be done as a modification to the Permit. The REVIEW BOUNDARY delineated on the attached site map for the disposal system is specified by regulations in 15 NCAC 2L, Groundwater Classifications and Standards. A REVIEW BOUNDARY is established around disposal systems midway between the Compliance Boundary and the perimeter of the waste disposal area. When the concentration of any substance equals or exceeds the maximum allowable concentration of that substance at the REVIEW BQLNDARY, as determined by monitoring, the permittee shall either (i) demonstrate, through predictive calculations or modeling, that natural site conditions, facility design and operational controls will prevent a violation of standards at the Compliance Boundary; or, (ii) submit a plan for the alteration of existing site conditions, facility design or operational controls that will prevent a violation of standards at the Compliance Boundary, and implement that plan upon its approval by the Director. 5. Any additional 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 Permittee to insure proper operation of the subject facilities. 2. The Permittee or his designee shall inspect the wastewater treatment and disposal facilities to prevent malfunctions and deterioration, operator errors and discharges which may cause or lead to the release of wastes to the environment, a threat to human health, or a nuisance. The Permittee shall keep an inspection log or summary including at least the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of three years from the date of the inspection and shall be made available upon request to the Division of Environmental Management or other permitting authority. 3. Any duly authorized officer, employee, or representative of the Division of Environmental Management may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the disposal site and 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; or may obtain samples of groundwater, surface water, or leachate. 7 1. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans, specifications and other supporting data. 2. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data. 3. This permit is not transferable. In the event there is desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 4. Prior to any transfer of this land, a notice shall be given to the new owner that gives full details of the materials applied or incorporated at this site. 5. A set of approved plans and specifications for the subject project must be retained by the applicant for the life of the project. 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. 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. 8. The wastewater treatment facility shall connect to a publicly owned areawide sewage collection system within 180 days of its availability. All discharge of wastewater to the system shall cease at the time of the connection to the sewerage collection system. 9. 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. 10. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Commission will review the adequacy of the facilities described therein, and if warranted, will extend the permit for such period of time and under such conditions and limitations as it may deem appropriate. 11. Within 30 days of an average monthly flow of 80% of the design capacity of the waster treatment and disposal facilities, the Permittee shall begin construction of the next phase of the wastewater treatment and disposal facilities. 12. In the event that Turnpike Properties, Incorporated fails to receive full status as a public utility with a franchise to service the Pine Island Planned Unit Development, then this permit shall become void. Permit issued this the 16th day of August, 1991 CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION George T. Everett zr ctor Division of Enviro ental M ge nt By Authority of the n anagement Commission Permit No. WQ0004823 Permit No. WQ0004823 August 16, 1991 Engineer's Certification 1, , 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 the approved plans and specifications. Signature Registration No. Date 10 RATING SCALE FOR CLASSIFICATION OF FACILITIES Name of Plant: Owner or Contact Person:jLLIi�ip m_ E. Mailing Address: "1l0—C��t�l,T� County: Cl 7rzR1`TuCy-, Telephone:jjNP--" 72Z -- 22,--z� NPDES Permit No. NC00 Nondisc. Per. No.k�jj 3 IssueDate: 1 Co &2G t9 t _ _ _—Expiration Date: ,:2),j Existing Facility New Facility Rated By: Date: I Z AIJC-,' ,\ Reviewed (Train. & Cert.) Reg. Office Reviewed (Train. & Cert.) Central Office ORC Grade ITEM POINTS ITEM POINTS (1) industrial Pretreatment Units and/or (4) PRIMARY -TREATMENT UNITS Industrial Pretreatment Program (a) Septic Tank (see delinilion no. 43) .......... . ... 2 (see-definiliort No. 33) 4 (b) Imhoff Tank .................................. 5 (2) DFSIG- FLOWOFPLANTINGPD (c) Primary Clarifiers ............................ 5 (not applicable to non -contaminated cooling (d) Settling Ponds or Settling Tanks for inorganic waters, sludge handling facilities for water Non -toxic Materials (sludge handling facilities purification plants, totally closed cycle for water purification plants, sand, gravel, systems (del. No_ 11). and facilities stone, and other mining operations except -onsisting only of Item (4) (d) or Items (4) (d) recreational activities such as gem or gold nd (11) (d)) mining) ...... ................................ 2 0 - 20,000 .......................... 1 (5) SECONDARY TREATMENT UNITS 20,001 50.000 .......................... 2 (a) Carbonaceous Stage 50,001 - 100,000 ................ . ......... (i)Aeration - High Purity Oxygen System . �... 100,001 250,000 .............. . ........... 4 Diffused Air System ........... 1 250.001 •• 500,000 .............. . ........... 5 Mechanical Air System (fixed, 500,Do1--1.Oo0,000 .......................... 8 floating or rotor) .............. 8 1.000,001 -- 2,000,000 ........................ 10 Separate Sludge Reaeration ..... 3 2.000.001 (and up) - rate i point additional for each (ii) Trickling Filter 200,000 gpd capacity up to a High Rate ............... . ... 7 maximum of 30 Standard Rate ............... 5 Packed -Tower ............... 5 22�J, ��0 �� (i i i) Biological Aerated Filler or Aerated Design Flow (gpd) Biological Filler ...................... 10 (iv) Aerated Lagoons . ............. . .... . 10 -(v) Rotating Biological Contactors .......... 10 (vI) Sand Filters- (3) PRELIMINARY UNITS (see definition no. 32) intermittent biological ... 2 (a) Bar Screens ................................ recirculating biological ..... 3 or (vii) Stabilization Lagoons ............ ....... 5 (b) Mechanical Screens, Static Screens or (viii)Clarilier .. . ........................... Q Comminuting Devices ...... . .... ............ . 2 (ix) Single stage system for combined (c) Grit Removal . . . ... . ..... . ......... . . ....... i carbonaceous removal of 800 and or nitrogenous removal by nitrification (d) Mechanical or Aerated Grit Removal ........... 2 (see def. No. 12) (Points for this ilem (e) Flow Measuring Device ...... . ............ ... 1 have to be in addition to items (5) (a) o r W through (5) (a) (viii) ........... . .... . B (f) Instrumented Flow Measurement ............ . . (x) Nutrient 2dditions to enhance BOD (4) Preaeralion ..... . .......................... 2 removal . - .. ............ _ ............. 5 Influent Flow (xi) Biological Culture (-Super Bugs`) addition [quatizalion ........ to enhance organic compound removal . .. 5 ,., Grease or Oil Separators • Gravity .......... 2 Mechanical.......... 3 Dissolved Air flotation. 8 (1) Prechlorination .. 5 Nit"rogenous Stage (i) Aeration - High Purity Oxygen System . _ ... 20 Diffused Air System ........... 10 Mechanical Air System (fixed, floating, or rotor) ...... ...... 8 Separate Sludge Reaeration - . - - . 3 (ii) Trickling Filter - High Rate .............. 7 Standard Rate ............. 5 Packed Tower............ 5 (iii) Biological Aerated Filter or Aerated Biological Filler .... . ................... r 10 (iv) Rotating Biological Contactors ............ 10 (v) Sand Filter - intermittent biological - - - _ - - - - 2 recirculating biological ........ 3 (vi) Clarifier ................................ 5 _1ARY OR ADVANCED TREATMENT UNIT Activated Carbons Beds - without carbon regeneration .................. 5 with carbon regeneration .................... 15 Powdered or Granular .Activated Carbon Feed - without carbon regeneration ................. 5 with carbon regeneration ................... 15 Air Stripping ............................. 5 Denitrification Process (separate process) ..... 10 Efectrodiafysis ......................... . .... 5 Foam Separation ............................. 5 Ion Exchange ................................ 5 Land Application of Treated Effluent (see definition no. 22b) (not applicable for sand, gravel, stone and other similar mining operations) ,(i) on agriculturally managed sites (See def. 4}.................................. 10 by high rate infiltration on non -agriculturally raged sites (includes rotary distributors and similar fixed nozzle systems) ........... 4 (iii) by subsurface disposal (includes low pressure pipe systems and gravity systems except at plants consisting of septic lank and nitrifica- tion lines only) ............................. Q Microscreens................... 5 Phosphorus Removal by Biological Processes (See def. No. 26) ............................. 20 Polishing Ponds - without aeration ....... 2 with aeration .......... 5 Post Aeration - cascade .............. 0 diffused or mechanical . .. 5 } Reverse Osmosis...... ......................... 5 Sand or Mixed -Media Filters - low rate ........... high rate .......... 5 Treatment processes for removal of metal or cyanide.................................... 15 Treatment processes for removal of toxic materials other than metal or cyanide ......... 15 )DGE TREATMENT Sludge Digestion Tank - Heated ............... 10 Aerobic ............... 5 Unheated ...... ....... 3 Sludge Stabilization (chemical or thermal) . . . . . . . 5 Sludge Drying Beds Gravity ................. 2 Vacuum Assisted 5 S.=lulrialion ...... . Sig.. Conditioner (chemical or thermal) .. . ... . . 5 Sludge Thickener (gravity) ............. . .... Dissolved Air Flotation Unit (no[ applicable to a unit rates as (3) (i) _ n Sludge Gas Ulilizalion (including gas storage) . . . . 2 (i) Sludge Holding Tank - Aerated ................ c'�) Mon -aerated ......... - - . 2 (j) Sludge Incinerator - (not including activated carbon regeneration) - - ... 1 o (k) Vacuum Filler, Centrifuge or Filler Press or other similar dewalering devices .................... 10 (8) SLUDGE DISPOSAL (including incinerated ash) (a)Lagoons....................... 2 (b) Land Application (surface and subsurface) (see definition 22a) -where the facility holds the land app, permit . - . 1 0 -by contracting to a land application operator who holds the land application permit ............... -land application of sludge by a contractor who does not hold the permit for the wastewater treatment facility where the sludge is generated . 10 (c) Landfilled (burial) ............................ . 5 (9) DISINFECTION (a) Chlorination (b) Dechlorination ............... . ..... . .. 5 (c) Ozone.. 5 (d) Radiation .......... . .............. . (10) CHEMICAL ADDITION SYSTEM (S) (See definition No. 9) (not applicable to chemical additions rated as item (3) 61. (5) (a) (xi), (6) (a), (6) (b), (7) (b), (7) (e), (9) (a), (9) (b), or (9) (c) 5 points each. List. 0 1) MISCELLANEOUS UNITS 5 (a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials including wastes from mining operations containing nitrogen and/or phosphorous compounds in amounts significantly greater than is common for domestic wastewater .......... 4 (b) Effluent Flow Equalization (not applicable to storage basins which are inherent in land application systems). 2 (c) Stage Discharge (not applicable to storage basins (d) inherent in land application systems ....................................... Pumps..._....._....-...._ _ ,....................- (e) Stand -By Power Supply ... .... ....... _.............................. (1) Thermal Pollution Control Device.........................................•-.- �b TOTAL POINTS CLASSIFICATION Ci 5 - 25 Points 26- 50 Points Zdk-__ ...................... .. _-.............. 51- 65 Points GassIV ........................................................ 66- Up Points Facilities having a rating of one through four points, inclusive, do not require a certified operator. Classilication of all other facilities requires a comparable grade operator in responsible charge. Facilities having an activated sludge process will be assigned a minimum classification of Class II. Facilities having trealmenl processes for the removal of metal or cyanide will be assigned a minimum ciassificahon of Class ll. Facilities having treatment processes for the biological removal lof II. phosphorus will be assigned a minimum classification of Class` rI III Ha' IAchrapd Carbon Bids. A phys;eavchamkal method for reducingWblorg anic ganic mm.d.1 from r sl.wx!•t .fnv. M: the c h,v lypa bads used in this method win have A Dow rat• varyuq from two eight gslfons per m;r.vl• pat square loot and may bo .1thar upllow a downllove carbon b d., Carbon ,y s1 may not be r.q.r+nl.d on wt. waaarwal•r 11.16m.n4 plan) .;I•. IAeral•d Lagoon., A barn In which xa a.", a1. maintained In svop•nason and t.y which bialoq;eal ;d,l: 'q]nK nu1Wr is ##ducal th,o h a,t1k;Atr acc.i.ral.d usml.r el sayp.er on a it-. IA., precis# W dinging aboul inlrraale contact b.lw.on air a high pv* oxygen in a LgL4d spa:• •,41.1;on d;llusid n; )Agrkvhwxey managed sir.. Any site on which a ctop It praduced, mansp.d, and lurv.slod (C,OP ch.d.r goitre, qua Ina, V.a, cad): jA;r 50ppinq, A protas by which the amnwtivan ion 11 evil converted to dissolved ammonia (PH .justm.nl) with the immanis Then ;oWi.ed to " aurasphar. by physical means: at other s;nr8ar oeoaxe. which eamert polrolevm product# such as konlone, toluene. and xyletto, }Carbon R.geremailon. The legen•rxfion of eihaysl.0 carbon by the use of a Wtraac6 to peovide V.m.ly tvgh 1•mparxtut., which volatirraa and orate she abtwbad impurities; )Ca,bensceooa Sag,, A stage of w11lswat•1 ➢aliment datgnad to ach;ovs 'secondary effluent ,cis,. )ConVilug•, A mec)u k2l ald,ekb in which cenuilugal forts is used to separate solids lion% HgL6ds ,dlw m .spirit. I:qu;ds of dtlsr•ns d.ns;tie t: )CheniKaf Addition Systems - Th& addsion of chemical (s) to waslowit•r as an applical.on po" fur ,,poses W improvinq :elide removal. pH sdjustmenk. atkafm;lr control• etc.; be tapabiily to p•r;rnanr trios eits.,.nt chemicals And d1f.1•n1 apprK23ion peinl. 16 achieve a ,p•c;liic #.auk -;I be na;derod oar syslam; the tapalaNty 1. add ch..4.0 t.) to dual units waf be rated as one system: pabUk)r Is add a ch.ffk-1 al C;fletence Apprca4on point. fa dill... PA purpa..x will tastnh In the s 1. ms Dsfng lap is I.pante syat.M. ojCtbent ca! &ludo. Condu;onlrq, The addi4on W a chawkit compound such as arm. fsrric chloride- Or petJ'mat so was sldge so eoil.see th4 mass pdw to its appieatlon so a dowxl.ring dsrke: I)Clesad Cycle Systems. Uts of toW" ponds Or hok%ng sanki ter eeralainm•M al waziewase, r4lining inorgarwe, non•laxk ftMaAalt from -sand, glove{ ayshad starts of other e;maar aperadans, ,rra which there is no discharge to she sulfate waters: much ay,lomc, shall carry a max"wn of two -W1 a.patdWs of pumping IacDdiOs w tray alhsr appunenantes; 2JCCMAkud 11emon1 of CstbonaCeotrs 800 and KVCgInous RemorA by hGvirxal;on - A single stags slam ed.lign.d- le xchev.-adYxncod- permit aMoom limits on 800 and aMmoria nitrogen .;thin . same broaeg;cal reactor. 3)0a-ch1w6zI;or. The partial or comptola rodm6m a tos)duaf chlorine in a liquid by Any chemical physical process; 4)D.mMrr�tsl;on process. The convlatisws W rwate•miropen to 41809.6 gas; SKloeVodialysls. process for Removing "Zed sails Dom water through the use of ion-selselive ...chanpi membranes; d)FAter Preis. A process operated rtl*chankally for paidsly dosraleliag shdg4: ))Foam Separation. The planned lrolh:ng of waslewilir or wasl.w2grat eUlrenl as a means of moving eaee:sire amounts of dot.rgenl alailariafs through she L-Oodua:ien of all In the form of fine ,Opts; alas called loam kactionasion; 8)G61 Rimorat Tho Process of tsmov;rq SKIP and other heavy rosiness mauor from wsslawasor, 9)lmhoA Tansc• A deep two Italy wasl.wator tank coµhling of An upper zedimenaalaan chamber and sou rp. dgost6to chambon. 0, ted Flow W.azuremenL A device wh" indcales ardMr recwds late of Parr, 'i egO, A chemical plaeas is which ions kwm Mo d111►lent molecW.s are ,ctanq,d. 2)L ;,LciiW (a) Sludge Dispasak A sass alvdga fitposal moo" by which Ah,dge may be spied to land eahor by tpraying On the Arod'ee Of by sublvelaea in(.ttim (La_ chiral plea#}- jnot 1Plteslol. ter typot d sludge d.suila.d In (1.1) at Ibis RW41; (b)Trealod EIR~L The process al xayfng treated W;slowalor onto A land seek at salver mou", of approciatin of wxspwslM onto a nd area as a roesµ as final disposal Androf kaavnsni: '3)34ee640oart. A low speed. earl-.Ivousty baebwtshed, rotating drum Chot epotating undet -arty een&ions 21 a poFshLag mashed removirap suspended solids Isom .Irluont• '4)W%Wwsiaon Plac s$. Us WochamTcat coarersioe of unoaldtsOd r1laogen (ammenla and Organic - uogsn) In oa;daiad trilrogen (usually nusss.): 'S)W1voganous Stage. A'spirals slags of waslewil.r veaunenl datlpnod !w shi zp.a7lc purpose of UW491149 lefte"l aWrpgM fa nilrats rthrogert: 'ldPlaosphue Rexral Biafog;cak The removal of )ahosphams Isom wastawaler by an aikianoaic (mots deigned to enhance hrsury uplako of phosphorus by the. mfaoorganiams: n)povshinlf Paid. A ho)dmg Pond lotow;ng secondary stealmatal with suf Giant daientiren to allow for a A sealing el sniff sysponded solids: - 3)Post Aasaion- Aeaion !gnawing conventional socondsry raalmenl units to incr.aza .11uent D.O. r for any other pwpos.: 'g)Pesl Mraiwa. (Cascade) A polishing madhod by which dissosf d oxygon h added Is the operant by nanmothardesk pnvity means of flowky down I series W steps OF we;es- The pow oeeurrinst across + sl*pa Or wstrt moves in a 1161y shirt loyal AM the epetxdort as the cascade rogvT..t M/ operasor dpnlmenS taus, see points era ass;gnod wan Vaough W1 Is an Osueniil lisp to maesng the limas of -o disCllarga perm;k 10)Pawdsred at Ciamlar Aclrrsl.d Carbon Fire. A bioplysksl carbon process that u924s biological cl:vity And wgan;t absefPdon by ullnp "-dared w granter acslval.d casbe,ti vi,gin Andro, .g.naraled carbon ss load controlled Into she system.• a 1 sPr.111allon. A lank conslr Clad 19 provide aatalion prior 10 p+inary Vai{rnont. 12)PreGminary U441, Unil Operations in Ihs veitmens ptxess. such at zcteeeinq and comminution, .at ptoPar. the 9"or lW Subsequent major opora4aat; l3)lndvsViaf Pra Vtatmant (.)Pre-Veatmont Unil• Industrial. The csndit;oninq of a wall* al its sure■ boal dschzrgs, to remove roc to neWalvis substances Injvirous to sows$ and UvAtment , rtx..la or to .11.cl x partial tidvcs;on in bad On s Vestment prxoss which Is op„at&d by the same avenrrq body 11 1"' wsaa.walar Ir•aun.nl plant L.;nq Islet (b)Pte-11-11monl Psognm, Indusu;a) - .unl ta• a Slu. w EPA .quifo l program I. #.c.;+ point. on Iha-,al;nq she.l• r t)Primiry Claeifi.a. The 6111 s.atLng links lhrough which waalow 101 Is passed in a l,oalm•nt arks fur the purpol, at r•mor;ng a eldeabla and avipond,d ioWs and BOO which iI i3socisl*d whh Ihs olidr: r5)Pump.. Alf imf .nl, .luu, M, and in•plAn1 pumpt- ')Radiation. 0;l;nl.et;a andror sl.riizall n Pieced WiGl;nq dovic.I omitting vIviviolol a gamma :yes: f l)Rsvarse Olmsus. A usasm.nl process in which a h•a,y contarninaiad Gquid71pre.:u(;1.d nevgh A mrrs,bnna I.rmLtg n 'Ir pure I;gv;d In• tom 1u,p.M.d t.W,: s}Roe 70103;c3l Con0clorx. A I;x•d biologlcat growlh process in which wa,r.w.mr nowt ,ovq. wn;:h a ,.ilea rr! paruarry vbm 11d ry .,tar a..rlacol are aotal.d; o)S .:{apnl.rn,iu.m 9iofaq;cal. aF;ty alien of .ulu. nl tonowinq s•pi,c tank,, sapao or '^• +rr-. nt pe.t621 ;n which lunh•r pied. composition ;, .ap.et.d to produce du'u.d rtv.ns,• fiyd.avl;c lead;ng ra tea on she,• l;ht a,. c. PP d In gpdrac and her a ... uh;nq low , rnJa! pea, snare ­ ); Ib)R.e 6eulstinq b;olopi_ar . u,. ,ern. We or sand finer as 4.1; .d in (al wish e added cap.b;lly 11 r•eye), •ilfu.nt back bhroogh eh. rind f;rt.r- 4)5and or kir,d.l-i.d;a Fill.— A poaahinq Pieced br which .Invenl !'#nit, It, ach;ered Ih,ovgh a ,[he, 1.dvct;on o1 .usp.ndsd aat;d,aa)low 111, - 9r ;ty. hyd+aol;t,ay loaded fiber with Inad;nq 1.1 in rh. on. 1. Ihs.. ppmral rsnq.:lb)h;gh ail. a pr... hydry CG Hr lo.d.d 1,11., w;m rmd;nq 1.-s in lh. lire gyrltf rang.: AI any fan., the loadrq nu will .stood Ihs.. gprnrtf- (el)Socondary Clarifiers. A tank which lollows she b;obq;eat vr;g of a V.strnens plcµ and which has the pwPose ►1 temavins ssudg• sstufaled sdth the blWogkxl VealmaN unq s; (42)S6pwit. SWga Romeril;o+ti A pan of she eonlicl mab4zetion protest where the 10;v Iod al.rdgo a Van.t•uted Is a lank mid aerated b4fsl. r.lwnInq A Ia she bee-vt: (43)S.p4e Tank, A Anq:adory t.ninq fink In which s.1w.d sludge II in eontael with she wale. wafer Hawing ddevgh the lank: than stet 1. appk.t4. lot ..plk lank ayat.mt 2-11L q siople, lam;sy ,.s;dortc.t basing a cap kr of 200 Slim. or 1.9, which dlschasge le a AlffiCIl On field; (r/)Sludg. N9.1yeart, Th. "oil by whkh s,gank .4 rWsie ,nauer And sludge is 9asif.d. k..r;ed, m;neeaiz.d a eorwetod Iola mar. stable orpsn is maltar Iuough she 'Cevity Of !wing orq An4ms, which includes aeral.d h4:4g lams;. (LS)Skdq. Ory;ng Dad.- An e.a tocnprislrq nalwil w x4Eclal layers of porous materials upon wtach dgosl.d atwago sludge is dried by. Cairnago And ev2potxLio+ti (16jSkrdgt EhdAltion. A prm.ss of Ilvdgo corArl"nq in which certain constituents at. removed by svct.siwm wlthings w;uh Lash wile# at plant olnvmt: (47)Sbdo. OIL U15s11;tt. The process of wino sewage gas Iw the purpose W h.aitng bu+idings, d';Ar;9 engines. etc.: (<{)Siudge Holdhq tank (A.rated _ad Hona.talod), A tank W I.d Ew small wasl.wsloe Uollmenl ptaµs rM eoruaktirq A Gr�,Oo61 fn wt;ch .Iaadgs n my lx, kept Ir lk and tvpernatant w;lhd1Nv a pro, to a d,yinq trealhed (i.. aluG,a during baCsk Th;1 may be dorlo by adding a ima1 amount of air .amply to klop in. skrdgt (rash, but not nmotsaray an Amount that would be toquied to 2ch4vs stabiiziiton of wgank mailer. A nuns In led lank -zed limply be used to deeanf sludge prior W dowater;rq and wovtd simply bo used to decant sludge paiw to dowmaing end wotlsd not a11ow tong periods peverat days of d*I.nrion) w3he4f tesuliry odor preyades; (49)Sldgs Incitoraloes, A furnace e*69nod la burn sludge ant is temovo it tnashrre and contWslko. materials and -due. the skrdge it a zlwi. ash; . (SO)Skdge Stabaiaa6en (ChiaBtat w Thermals. A Process 19 make bemsd sludge lass Odorous and puVestniblt• and to reduce the palhoselne orgartlem consent ilil may ber done by pH adjustmom chlorite dos;lag, w by heal VealmerC - (S1)Sk,dgo Tttids.enr. A type W lank In which the studgo is permnled to settle and Ihlck.p Wough kghaiort and glavir. (52)StxblStsYaat Lagoon A'typr W exdallon lagoon In wbkh biological oAldaion of wganic mauor is attacted by nahwal rinslor of W"ee fe she v,Sl*r kom air tool a poimhirq P-]: (53),Slsn Isr Power Supply: On sae or portable otecukaf genarairq oquipolerM (54) Smic &aeons, A stationary &clean-des)gnad to remare IOWS iec)vd-rag man -biodegradable pattkulap Iflsaoablo solids- tvspoeded solids and sop rodueaisn) Ddgt nwt%klpal and indvsttial wap.arater Irielnaant systems: (55)Terfisry 7roklaunL A Stage- of realmeM Iolo.r(ng secondary vrh;ch is primarily Jul tht purpose W .ltusm paislikW. A soting taptoom at Sind or coal )issr tight be smptored Iw Ws purpose. (5i)Th4setal Polution Coravoi Davies, A dwjco pro 4ding for the buulor of heat from a fluid stowing in tubas 1► anoatar firld outside Ito tubes, Or vka varsa; w. Other ssoans of legufaf-dq igvW fatnpasxttrei: (S7)Th.ha3t Mudge Cor,$4oner, A [orZil wiog process by which heat is added for a prou2clod pwiod of time Is lerlpstro Hoe dowatorab7ey of asudge by the solabWafrag .red "aurLing of the •maltar and mesa highly Iqd 2144 ukrdy. patGcp.: (SO)Tos;c Hssodala. Those wastes w cembinafians el wastes Inchsdkag duoaa.-caaesiry ag.nls wh; It 'list dschago and upon oaposuro, )ngos6&% iMxixt;on or xssiOoiaion iota any organism .;that drocty bore Its trvlrow"FA or )rldireedy by Ingassion through toed chains, wall cause death, disease. behavioral abnoonilides, cancer, tosaic saWaaions. physiological walbsittloese (Tncluduly rn1lVMtiCAS In reproducilon) or physcal dalerzaiias. in such organisms or slash oUsprinp: Toxic materials Include, by way Blusual;9A and tut Fm;lalion: lead, ea41w4vr . ehssaaiw.ti morevey, vanadium, zrseaf4 tir4. atln0•e;Vo-e: brsbsrai.as tOWS pokd4odnatad bipMtryls (PCI3i) and dnciJwodiph.nrl Iricl+tawdaane (DDTr and arty .sus statatials In1 have at may, benaher be determined to have lox;c propord.s: (55?)TriAJ6q Qor, A biob&3l Ihilwaom wA consising d maWW Such as broken s1on� or rock oru orhich waslewatef h dhVICAect A high late lrkIWp Guar k wta 5r" b eparal*�st bs:xeen 10 and 30 mgd per xae. A low rile vkkr,4 lacer Is one which 4 dssignod N operas. as one-sc low 994 pot aus; . (eolTritk 4;P Filler (Packed Towed. A plug Now yps of a firre Is which waslowaler flows. down Wbropk sualsihs layeis W mama cr 6luile staxle4Xt Organic Material Is nmored eonlinvary by mcvro b(el"kai sued protr111 is each svecass;ro layer. Tbis mooted Keay ptoducs -aocondasy' C�AYty 91Jlw+ti, or may be adapted se produce a lliu$ed eftkrent (69VIcrnral Faun, CesD1651s, Or FAet Posses. Devices which we dasIgned so #.more oacess wal*r kom Bihar dgerled or turd-q.Sud shadg■ prier so disposal or hrlhar keaYrsani. OA�