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HomeMy WebLinkAboutWQ0004728_Final Permit_19960315State of North Carolina Department of Environment, XAA Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary p E H N F1 A. Preston Howard, Jr., P.E., Director March 15, 1996 The Honorable Floyd A. Evans, Mayor Town of Fremont Post Office Box 818 Fremont, North Carolina 27830 Subject: Permit No. WQ0004728 Town of Fremont Wastewater Treatment and Wastewater Spray Irrigation Facilities Wayne County Dear Mayor Evans: In accordance with your application received December 29, 1995, we are forwarding herewith Permit No. WQ0004728 dated March 15, 1996, to the Town of Fremont for the continued operation of the subject wastewater treatment and spray irrigation facilities. It is understood the Town of Fremont is under an SOC and plans to take the subject wastewater treatment and spray irrigation facilities off line and completely out of service on or before December 1, 1998. Please note a permit renewal must be requested I80 days prior to the expiration of this permit if these facilities are not out of service by the expiration date. The pretreatment requirements for the Town of Fremont are located in Permit Section III. The Town of Fremont is reminded that it must still judge compliance for each industrial user for each six- month period (January 1-June 30 and July 1-December 31), and take appropriate enforcement actions if deemed necessary. This permit shall be effective from the date of issuance until February 28, 2001, shall void Permit No. WQ0004728 issued April 17, 1995, 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, 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 the 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 919-733-5083 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper If you need additional information concerning this matter, please contact Mr. John Seymour at (919) 733-5083 extension 546. Sincerely, CXJ� A. PrestoIoward, Jr., P.E.1h cc: Wayne County Health Department Pretreatment Group Washington Regional Office, Water Quality Section Washington Regional Office, Groundwater Section Bob Cheek, Groundwater Section, Central Office Training and Certification Unit Facilities Assessment Unit NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH SPRAY IRRIGATION SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Town of Fremont Wayne County FOR THE continued operation of a 0.246 MGD spray irrigation treatment and disposal facility consisting of dual treatment lagoons, post chlorination facilities, flow measuring device, dual 200 GPM irrigation pumps, approximately 23,450 linear feet of spray irrigation laterals, a 43.5 acre spray field and all associated piping, valves, controls and appurtenances to serve the Town of Fremont, with no discharge of wastes to the surface waters, pursuant to the application received December 29, 1995, 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 February 28, 2001, shall void Permit No. WQ0004728 issued April 17, 1995, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS The spray irrigation facilities shall be effectively maintained and operated at all times so that there is no discharge to the surface waters, nor any contamination of ground waters which will render them unsatisfactory for normal use. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions or failure of the irrigation area to adequately assimilate the wastewater, the Permittee shall take immediate corrective actions including those actions that may be required by the Division of Environmental Management, such as the construction of additional or replacement wastewater treatment and disposal facilities. 2. 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. 3. The residuals generated from these treatment facilities .must be disposed in accordance with General Statute 143-215.1 and in a manner approved by the North Carolina Division of Environmental Management. 4. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. f. Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin in amounts that will cause interference or pass through; g. Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems; h. Any trucked or hauled pollutants, except at discharge points designated by the POTW. 3. It may be necessary for the permittee to supplement the requirements of 15A NCAC 2H .0900 to ensure compliance by the permittee with all applicable limitations. Such actions by the permittee may be necessary regarding some or all of the industries discharging to the municipal system. 4. The permittee shall require any industrial discharges into the permitted system to meet the regulations of 15A NCAC 2H .0900. Prior to accepting wastewater from any significant industrial user, the permittee shall either develop and submit to the Division a Pretreatment Program for approval per 15A NCAC 2H .0907(a) or modify an existing Pretreatment Program per 15A NCAC 2H .0907(b). 5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program as required under the 15A NCAC 2H .0900 regulations by the requirements of the approved State pretreatment program, as appropriate. B . Pretreatment Program Requirements Under authority of North Carolina General Statute 143-215.3 (14) and implementing regulations 15A NCAC 2H .0900, and in accordance with the approved pretreatment program, all provisions and regulations contained and referenced in the Pretreatment Program Submittal are an enforceable part of this permit. The pern- ttee shall operate its approved pretreatment program in accordance with the State Pretreatment Regulations 15A NCAC 2H .0900 and the legal authorities, policies, procedures, and financial provisions contained in its pretreatment program submission and Division approved modifications there of. Such operation shall include but is not limited to the implementation of the following conditions and requirements: 1. Sewer Use Ordinance (SUO) The permittee shall maintain adequate legal authority to implement its approved pretreatment program; 2. Industrial Waste Survey (IWS) The permittee shall update its Industrial Waste Survey (IWS) of all users of the sewer collection system at least once every five years; 3. Monitoring Plan The permittee shall implement a Division approved Monitoring Plan for the collection of facility specific data to be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment local limits; 4. Headworks Analysis (HWA) and Local, Limits The permittee shall obtain Division approval of a Headworks Analysis (HWA) at least once every five years, and as required by the Division. The permittee shall develop, in accordance with 15A NCAC 2H .0900, specific Local Limits to implement the prohibitions listed in 15A NCAC 2H .0909; 4 S. Industrial User Pretreatment Permits (IUP) & Allocation Tables In accordance with NCGS 143-215.1, the permittee shall issue to all significant industrial users, permits for operation of pretreatment equipment and discharge to the permittee's treatment works. These permits shall contain limitations, sampling protocols, reporting requirements, appropriate standard and special conditions, and compliance schedules as necessary for the installation of treatment and control technologies to assure that their wastewater discharge will meet all applicable pretreatment standards and requirements. The permittee shall maintain a current Allocation Table (AT) which summarizes the results of the Headworks Analysis (HWA) and the limits from all Industrial User Pretreatment Permits (IUP). Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as determined by the HWA; 6. Authorization to Construct (A to C) The permittee shall ensure that an Authorization to Construct (A to C) is issued to all applicable industrial users for the construction or modification of any pretreatment facility. Prior to the issuance of an Authorization to Construct (A to C), the proposed pretreatment facility and treatment process must be evaluated for its capacity to comply with all Industrial User Pretreatment Permit (IUP) limitations; 7. POTW Inspection & Monitoring of their SIUs The permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division approved pretreatment program in order to determine, independent of Information supplied by industrial users, compliance with applicable pretreatment standards. The permittee must: a. Inspect all Significant Industrial Users (SIUs) at least once per calendar year; and b. Sample all Significant Industrial Users (SIUs) at least twice per calendar year for all permit -limited pollutants, once during the period from January 1 through June 30 and once during the period from July 1 through December 31, except for organic compounds which shall be sampled once per calendar year; 8. SIU Self Monitoring and Reporting The permittee shall -require all industrial users to comply with the applicable monitoring and reporting requirements outlined in the Division approved pretreatment program, the industry's pretreatment permit, or in 15A NCAC 211.0908; 9. Enforcement Response Plan (ERP) The permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards promulgated pursuant to section 307(b) and (c) of the CIean Water Act (40 CFR 405 et.seq.), prohibitive discharge standards as set forth in 15A NCAC 2H .0909, and specific local limitations. All enforcement actions shall be consistent with the Enforcement Response Plan (ERP) approved by the Division; 10. Pretreatment Annual Reports (PAR) The permittee shall report to the Division in accordance with 15A NCAC 2H .0908. In lieu of submitting annual reports, Modified Pretreatment Programs developed under 15A NCAC 2H .0904 (b) may be required to meet with Division personnel periodically to discuss enforcement of pretreatment requirements and other pretreatment implementation issues. For all other active pretreatment programs, the permittee shall submit to the Division at the following address: NC Division of Environmental Management Pretreatment Group Post Office Box 29535 Raleigh, North Carolina 27626-0535 5 Two copies of a Pretreatment Annual Report (PAR) describing its pretreatment activities over the previous twelve months. These reports shall be submitted according to a schedule established by the Director and shall contain the following: a. Narrative A brief discussion of reasons for, status of, and actions taken for all Significant Industrial Users (SIUs) in Significant Non -Compliance (SNC); b. Pretreatment Program Summary+ (PPS) A pretreatment program summary (PPS) on specific forms approved by the Division; C. Significant Non -Compliance Report SNCR The nature of the violations and the actions taken or proposed to correct the violations on specific forms approved by the Division; d. Industrial Data Summary Forms (IDSF) Monitoring data from samples collected by both the POTW and the Significant Industrial User (SIU). These analytical results must be reported on Industrial Data Summary Forms (IDSF) or other specific format approved by the Division; e. Other Information Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of SIUs in SNC, and any other information, upon request, which in the opinion of the Director is needed to determine compliance with the pretreatment implementation requirements of this permit; 11. Public Notice The permittee shall publish annually a list of Significant Industrial Users (SIUs) that were in Significant Non -Compliance (SNC) as defined in the permittee's Division approved Sewer Use Ordinance with applicable pretreatment requirements and standards during the previous twelve month period. This list shall be published within two months of the applicable twelve month period; 12. Record Keeping The permittee shall retain for a minimum of three years records of monitoring activities and results, along with support information including general records, water quality records, and records of industrial impact on the POTW; 13. Funding and Financial Report The permittee shall maintain adequate funding and staffing levels to accomplish the objectives of its approved pretreatment program; 14. Modification to Pretreatment Programs Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW monitoring of their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a permit modification and shall he governed by 15 NCAC 2H .0200 and 15A NCAC 2H .0907. I V . A40NITORING AND REPORTING REQUIREMENTS Any monitoring (including groundwater, surface water, soil or plant tissue analyses) 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. Adequate records shall be maintained by the Perrnittee tracking the amount of wastewater disposed. These records shall include, but are not necessarily limited to, the following information: a. date of irrigation, b . volume of wastewater irrigated, c. field irrigated, d. length of time field is irrigated, e. continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each field, f . weather conditions, and g . maintenance of cover crops. h. annual and cumulative totals of gallons/acre of wastewater, 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. 3. A representative annual soils analysis (Standard Soil Fertility Analysis) shall be conducted of each site receiving effluent in the respective calendar year and the results maintained on file by the Perrrnittee for a minimum of five years. The Standard Soil Fertility Analysis shall include, but is not necessarily limited to, the following parameters: Acidity Manganese Potassium Calcium Percent Hun& Matter Sodium Copper pH Zinc Magnesium Phosphorus Base Saturation (by calculation) Cation Exchange Capacity 4. The effluent from the subject facilities shall be monitored by the Permittee at the point prior to irrigation every March, July, and November for the following parameters: BOD5 TSS TKN Total Coliform pH NO3 as N NH3 as N Sodium Cadmium Magnesium Calcium Lead Zinc Copper Silver Nickel Cyanide Chromium Sodium Adsorption Ratio (by Calculation) Adequate precautions shall be taken by the Permittee to maintain the Sodium Absorption Ratio at or below 7.5. 5. Three (3) copies of all operation and disposal records (as specified in condition 1II 2) on Form NDAR-1 shall be submitted on or before the last day of the following month. Three (3) copies of the annual soils analysis (as specified in condition III 3) shall be submitted yearly. And, three (3) copies of all effluent monitoring data (as specified in condition IlI 4) on Form NDMR-1 shall be submitted on or before the last day of April, August, and December. All information shall be submitted to the following address: NC Division of Environmental Management Water Quality Section Facility Assessment Unit PO Box 29535 Raleigh, NC 27626-0535 6. Noncompliance Notification: The Permittee shall report by telephone to the Washington Regional Office, telephone number 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 sludge digester, the known passage of a slug of hazardous substance through the facility, or any other unusual circumstances; b. Any process unit failure, due to known or unknown reasons, that renders the facility incapable of adequate wastewater treatment, such as mechanical or electrical failures of pumps, aerators, compressors, etc.; c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility; or d. Any time that self -monitoring information indicates that the facility has gone out of compliance with its permit Iimitations. 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. V . GROUNDWATER REQUIREMENTS 1. The four (4) existing monitor wells No. 1, No. 2, No. 3, and No. 4, shall be sampled every March, July, and November for the following parameters: NO3 Ammonia Nitrogen TDS TOC pH Water Level Chloride Fecal Coliforms Cadmium Lead Chromium Nickel Cyanide Volatile Organic Compounds - In November only (by the method below) Method 6230D (Capillary - Column), "Standard Methods For The Examination of Water and Wastewater", 17th ed., 1989 The measurement of water levels must be made prior to sampling for the remaining parameters. The depth to 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 the relative elevation of the measuring point for each monitoring well. 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 background monitor well exceeds 10 mgli, 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, then the Washington Regional Office groundwater supervisor (phone number 9191946-6481) must be contacted immediately for further instructions regarding any additional follow-up analyses required. The results of all initial and follow-up analyses must be submitted simultaneously. The results of the sampling and analysis shall be sent to the Groundwater Section, Permits and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on Form GW-59 [Compliance Monitoring Report Form] every April, August, and December. 3. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. 4. The COMPLIANCE BOUNDARY for the disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary for the disposal system constructed prior to December 31, 1983 is established at either (1) 500 feet from the waste disposal area, or (2) at 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. VI. 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 or facility at any reasonable time for the purpose of determining compliance with this permit, may inspect or copy any records that must be maintained under the terms and conditions -of this permit, and may obtain samples of groundwater, surface water, or leachate. VII. GENERAL CONDITIONS 1. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data. 2. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data. 0 3. This permit is not transferable. In the event there is a desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division 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. 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). 5. 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. 6. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of the project. 7. The annual administering and compliance fee must be paid by the Permittee within thirty (30) days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit as specified by 15A NCAC 2H .0205 (c)(4). S. 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. Permit issued this the 15th day of March, 1996 NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston ward, Jr., P.E Director Division of vironmental Management By Authority of the Environmental Management Commission Permit Number WQ0004728 10 126 : r'6 u 1 D.tdele 1. i /• — .j ri Athfetic ! . G Meld ��' Cem 1, 5 • • a;' ElmyroW Ponds j New f3eihel..! Cal `•./ ; r: - �` L1 Aycock on (BM153)Cem 30 `v tl' � • '' 1 n n xI, • , - 35 ,r lo.112 oDkout Ce gym 132 sliest - �l • ;\ �` III \ — Jp , �� __ I - � � . _. �' .�'_ I ► — 1 l�w�cai nc 1531 -Ok High-alr- k :. `. ,�� �- ; :, ._ ;; ;; ;: e �, �_ .k_ `'" RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS Name of Facility: r'8e t� Owner or Contact Person: Mailing Address: County: L r-�YN'e Telephone: RG "s/ b / - Present Classification: New Facility Existing Facility NPDES Per. No. NC00 Nondisc. Per. No.WQCCxa-4-� Health Dept.Per No. Rated by: Telephone:Dated/�� Reviewed by: Health Dept. Telephone: Regional Office Telephone: Central Office Telephone: ORC:_.Grade: TrT_ Telephone: `�%5/ Check Classification(s): Subsurface I <S ray irrigation Land Appligat'on Wastewater Classification: (Circle One) I If III Total Points:X_ ��,�� ■ 1=a1 � ■ a:y1 1: s ..�: 1■ i :ti�� �. ti..:1��► �1 :,►. 1:u. �•.► yla. �►. a :1,. SUBSURFACE CLASSIFICATION (check all units that apply) 1. septic tanks 2. pump tanks 3. siphon or pump -dosing systems 4. sand filters 5. grease trapinterceptor 5. oil/water separators 7. gravity subsurface treatment and disposal; a. pressure subsurface treatment and disposal SPRAY IFF)GAT)ON CLA.SSIFtCATK)N (check all units that apply) 1._Lfpreliminary treatment (definition no. 32 ) 2.Le" lagoons 3. septic tanks 4. pump tanks 5. pumps S. sand filters 7. grease trapAnterceptor S. it/water separators 9isinfection 10, chemical addition for nutrient/algae control 11..,,,01�spray irrigation of wastewater In addition to the above classifications, pretreatment of wastewater In excess of these components shall be rated using the point rating system and will require an operator with an appropriate dual certification - LAND APPLICATION/RESIDUALS CLASSIFICATION (Applies only to permit holder) 1. Land application of biosolids, residuals or contaminated soils on a designated site. ------------------------- WASTEWATER TREATMENT FACILITY CLASSIFICATION The following systems shall be assigned a Class I classification, 1 unless the flow is of a significant quantity or the technology is unusually complex, to require consideration by the Commission on a case -by -case basis: (Check if Appropriate) 1_ OiVwater Separator Systems consisting only of physical separation, pumps and disposal; 2. Septic TanktSand Fitter Systems consisting only of septic tanks, dosing apparatus, pumps,sand filters, disinfection and direct discharge; 3. Lagoon Systems consisting only of preliminary treatment, lagoons, pumps, disinfection, necessary chemical treatment for algae or nutrient control, and direct discharge; 4. Closed -loop Recycle Systems; 5. Groundwater Remediation Systems consisting only of oiVwater separators, pumps, air -stripping, carbon adsorption, disinfection and dispos d; 5. Aquacufture operations with discharge to surface waters: 7. _ . Water Plant sludge handling and back -wash water treatment; 8-Seafood processing consisting of screening and disposal. 9. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified H permitted after July 1, 1993 or if upon inspection by the Division, it is found that the system is not being adequately operated or maintained. Such systems will be notified of the classification or reclassification by the Commission, in writing. ) he following scale is used for rating wastewater treatment facilities: (circle appropriate paints) ITEM POINTS ( 1) Industrial Pretreatment Units or Industrial Pretreatment Program (see definition No. 33)...............................I................L 4 7 (2) DESIGN FLOW OF PLANT IN gpd (rot applicable to non-wmaminated cooling waters, sludge handling facilities for \J water punflcallon plants, totally closed cycle systems(sae definition No. 11), and facilities consisting only of hem (4)(d) or Items (4)(d) and (11)(d)] 0 - 20,000................................................................................................................................................1 20,001 - 50,000.................................................................................................................... ....2 50,001 - 100,000.............................................................................................................................. .2 100.001 - 250,000................................................................................................................. ............... 250,001 - 500,000...................................................................................................I.........................._... 500,001 - 1,000,000........................ .................................................................................................. ..... a 1,000,001 - 2,DOO,000...........................................................................................................................10 2,000,001 (and up) rate 1 point addiilonal for each 200.000 gpd capacity up 10 a maximum of .................30 Design Flow (gpd) 7�OC�6 (3) PRELIMINARY UNITSJPROCESSES (see definition No.32) (a) Bar Scree ns..................................................................................................................I...........................1 or (b) Mechanical Screens, Static Screens or Comminuting Devices..........................................................................2 (c) Grit Removal ..............................................................................................................................................1 or (d) Mechanical or Aerated Gri Removal ..................................... ........y.2� (0) Flow Measuring Device....................................................................................................---...................2l (f) or Instrumented Flow Measurement.............................................................................................................. (g) Preaerafton.............................................................................................,,........_............ (h) Influent Flow Equalization......................._............................................................. ...2 Grease or Oil Separators Gravity Mechanical....................................................................................................................................3 Dissolved Alr Flotation ............................. ......... ....... ............ ........................ .................................. ............ A (]) Prechlorinallon ....................................................................................................................5 (4) PRWARYTREATMENTUNITS,PROCESSES (a) Septic Tank (see definition No. 43).......................................................................... ....2 (b) imhoff Tank....................................................................................... ....6 (c) Primary Clarklers..........................................................................................................................................5 (d) Settling Ponds or Settling Tanks for Inorganic Non -toxic Materials (sludge handling tacilkies for water purification plants, sand, gravel, stone, and other mining operations except recreational activities such as gem orgold mintng)............................................................................................................... ......................... (5) SECONDARY TREATMENT UN7S(PROCESSES (a) Carbonaceous Stage (I) Aeration -High Purity Oxygen Sysfem...............................................................................20 D€Hused Air System.......................................................................................................10 Mechanical Air System (fixed, floating or rotor)..................................................................8 Separate Sludge Reaeration.............................................................................................3 (11) Trickling Miter HighRate. ....................................................................................................................7 Standard Rate...............................................................................................................5 PackedTower................................................................................................................5 (lit} Blological Aerated Fiher or Aerated Biological Filter............................................................1 0 (Iv) Aerated Lagoons..........................................................................................................10 (v) Rotating Biological Contactors ........................................ ..I D (VI) Sand Fillers -Intermittent biological..................................................................................2 Recirculating bioioglcal................................................................................................. ...... {vk) Stabilization Lagoons........................................................................................... 3- {vlii). Clarftr.................. ..... ..................... .. .................... (Ix) Single stage system forcomb{ned carbonaceous removal of BOD and nitrogenous removal by nitrification (see definition No. 12)(Points for this hem have to be in addition to items (5)(a)(1) through ufltlzing the extended aeration process (see detinhlon No.3a)...........................................2 utilizing other than the extended aeration process .......................... ................................ a (x) Nutrient additions to enhance 600 removal......................................................................5 (xl) Bological Culture ('Super Bugs')addition........................................................................5 (b) Nitrogenous Stage (I) Aeration - High Purity Oxygen System.............................................................................20 DiffusedAir System.......................................................................................................1 0 Mechanical Air System (fixed, floating or rotor) ..................... .............. ................ ....... a SeparateSludge Reaeration............................................................................................A (it) Trickling Fllter-High Rate...................................................................................................7 StandardRate..........................................................................................7....................5 PackedTower ................ ............... .............:.............. ..................................................... 6 (III) Biological Aerated Fiher or Aerated Biological Flitar........... _.......... _....................................10 (Iv) Rotating Biological Contactors.......................................................................I..............10 (v) Sand Flitter - Iniennhterx blobg#cal...................................................................................2 Recirculating biological.....................................................................................................3 (v€)Clarifier ...........................................................................................................................6 (6) TERTIARY OR ADVANCEDTREATMENT LINfTSrPROCESSES (a) Activated Carbon Beds - whhout carbon regeneratlon....................................................................................................5 withcarbon regeneration.......................................................................................................16 (b) Powdered or Granular Actiated Carbon Food - withoutcarbon regeneration..................................................................................................5 withcarbon regeneration.....................................................................................................15 (c) AIr stripping............................................................................................................................................5 (d) Denhrification Process..............................................................................................................................10 (a) Elecirodlalysls..........................................................................................................................................5 (1) Foam Separation.......................................................................................................................................5 (9) ton Exchange... .... ... ... .. ...... ...... . ...............5 (h) land Application of Treated Effluent (see definition No. 22b) (riot applicable for sand, gravel, stone and other similar mining operations) by high rate InflRration..........................................................................4 (1) Microscreens................... ..........................................................................................................................5 (1) Phosphorous Removal try Biological Processes (See definition No. 26).................................... .....................20 (k) Pollshing Ponds - without aeration............................................................................................................2 withaeration ................................... ....................... »......... ................................ .......... 21 t1l rube ^D-LIWI - udbcape........................................................................................................................I.....0 diffusedor mechanical........................................................................................................2 (m) Reverse Osmosis........................................................................................................................................5 (n) Sand or Mixed -Media Ffiters - low rate..........................................................................................................2 highrate......................................................................5 (a) Treatment processes for removal of metal or cyanide...................................................................................1 5 (p) treatment processes for removal of toxic materials other Than metal or cyanide..............................................15 (7) SLUDGETREATMENT (a) Sludge Digestion Tank - Healed (anaerobic)...............................................................................................10 Aerobic.......... ....................................................................................................................................5 Unhealed(anaerobic)................................................................................................................................3 (b) Sludge Stabilization (chemical or thermal)................................................................................................5 (c) Sludge Drying Beds - Gravity......................................................................................................................2 VacuumAssisted......................................................................................................................................5 (d) Sludge Elutnation ................................................................... ..................................................................5 (a) Sludge Conditioner (chemical or thermal)....................................................................................................5 (f) Sludge Thickener (gravity).........................................................................................................................5 (g) Dissolved Air Flotation Unit (not applicable to a unit rated as(3)(i)].............................................................8 (h) Sludge Gas Utilization (including gas storage).............................................................................................2 (i) Sludge Holding Tank - Aerated....................................................................................................—............5 Nor-aerated......................................................... . ...................................................................................2 (J} Sludge Incinerator (not including activated carbon regeneration[................................................................10 (k) Vacuum Filter, Centrifuge, or Filter Press or other similar dewalering devices...................................................1 0 (8) RESfDUALS UTILI7ATIOWDISPOSAL (including incinerated ash) (a) Lagoons ..................................................... ................. ............... .......................... 2 (b) Land Application (surface and subsurface) (see definition 22a) by contracting to a land application operator or landfill operator who hods the land application permit orlandfill permit.............................................................. .........................................:................................2 (c) Dedicated Landfill(burial) by the parmittae of the wastewater treatment facility..............................................5 (9) 0ISWECTC11N (a) Chlorination........................................................................................................................................... (b) Dechiorination..........................................................................................................................................6 (c) Ozone.................................................................................... ..................................................................5 (d) Radiation..................................................................................5 ............................................................... (1 0) CHEMICAL ADDITION SYSTEM(S) ( see delinhicn No. 9) [not applicable to chemical additions rated as hem (3)(1), (5)(a)(xi), (6)(a), (6)(b), (7)(b). (7)(e), (9a), (9)(b) or (9)(c) 5 paints each: List.....................................................................................................................................5 .................................. ..................... ....... .............. ..................................... I .................. .. 5 .................................................................................................................................5 .......................................................................................................................I .............5 (11) MISCELLANEOUS UNr &PROCESSES (a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Including wastes from mining operations containing nitrogen or phosphorus compounds in amounts significar0y 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) (d) Stage Discharge (not applicable to storage basins inherent in land application systems)..................................5 Pumps.................................................................................................................................................... (e) Stand -By Power Supply.......................................................................................................................... 3 (f ) Thermal Pollution Control Device................................................................................................................3 TOTAL POWTS.......................................................................... CLASSIFICATION Class1................................. .......................................................................... 5-25 Points ClassP..................................... .................................................................... 26-50 Points ClassIII........................................................................................................51-65 Points Classrv.......................................................................................... .66-Up Points ------------------------------------------------------- Facitilies having a rating of one through four points. Incluslve, do not require a certified operator. Facilities having an activated sludge process wrl be assigned a minimum classlilcation of Class 11, Facilities having treatment processes for the removal of metal or cyanide will be assigned a minimum classification of Class 11. Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classification of Class III. L004 D EFINiTIONS The following delfnitions shall apply throughout this Subchapter. (1) Activated Carbon Beds. A physicaVchemical method for reducing soluble organic material from wasiewaler effluent-, The column -type beds used In this method will have a stow We varying from two to eight gallons per minute per square foot and may be,shher upflow or downflow carbon beds. Carbon.may or may not be regenerated on the wastewater treatment plant she; (2) Aerated Lagoons. A basin In which all solids are maintained In suspension and by which bloiogical oxidxion or organic matter is reduced through artificially accelerated transfer of oxygen on a flow -through basis; (3) Aeration. A process o1 bringing about Intimate contact between air or high purtty oxygen In a liquid by spraying, aghation or diffusion;(3a) Extended Aeration. An activated sludge process utilizing a minimum hydraulic dotention Limo of 18 hours. (4) Agriculturally managed site. Any she on which a crop Is produced, managed, and harvested (Crop Includes grasses, grains, trees, etc.); (5) Air Stripping. A process by which the ammonium Ion Is first convened to dissolved ammonia (pH adjustment) with the ammonia then released to the atmosphere by physical means; or other similar processes which remove petroleum products such as ber¢ene, toluene, and xytane; (6) Carbon Regeneration. The regeneration of exhausted carbon by the use of a furnace to provide extremely high temperatures which volatilize and oxidize the absorbed Impurities; (7) Carbonaceous Stage. A svge of wastewater treatment designed to achieve 'secondary' effluart limhs; (8) Centrifuge. A mechanical device In winch centrllugal force Is used to separate solids from liqulds or to separate liquids of different denshtas; (9) Chemical Addition Systems- The addition of chemical(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment, alkalinity control, etc.; the capability to experiment whh different chemicals and different application points to achieve a spectrlc result will be considered one system; the capabiityy to add chamical(s) to dual units will be rated as one system; capabitity to add a chemlca1 at a different application points for different purposes will resuh in the systems being rated as separate systems; (t0) Chemical Sludge Condlilon)ng. The addition of a chemical compound such as urea, ferric chloride, or a polymer to wet sludge to coalesce the mass prior to Its application to a dewatering device; (11) Closed Cycle Systems. Use of holding ponds or holding tanks for containment of wastewater containing Inorganic, non -toxic materials from sand, gravel, crushed stone or other slmiiar operations. Such systems shall carry a maximum of two points regardless of pumping facilities or any other appurtenances; (12) Combined Removal of Carbonaceous SOD and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit of luerx limits on BOD and ammonia nirogen whim the same biological reador (13) Dechiorinatiom The partial or complete reduction of residual chlorine in a liquid by any chemical or physical process; (14) Denilrffication Process. The conversion of nitrate-nttrogen to nitrogen gas; (15) Elecirodialysls. Process for removing Ionized sags from water through the use of lon-selective Ion -exchange membranes; (16) Rhor Press. A process operated mechanically for panlally dewatering sludge; (17) Foam Separation. The planned frothing of wastewater or wastewater effluant as a means of removing excessive amounts of detergent materials through the Introduction of air In the form of fine bubbles; also called foam fraclionalion; (18) Grit Removal. The process of removing grit and other heavy mineral matter from wastewater; (19) Imholf Tank. A deep two story wastewater tank consisting of an upper sedimentation chamber and a lower sludge digestion chamber. (20) instrumented Flow Measurement. A device which Indicates and records rate of flow; (21) Ion Exchange. A chemical process in which ions from two different molecules are exchanged; (22) Land application: (a) Sludge Disposal. A final sludge disposal method by which wet sludge may be applied to land either by spraying on the surface or by subsurface injection 0.0., chisel plow); [not applicable for types of sludge described in (11) of this Rule]; (b) Treated EH(uant, The process of spraying treated wastewater onto a lard area or other methods of application of wastewater onto a land area as a means of final disposal or treatment; (23) Microscrean, A low speed, continuously back -washed, rotating drum filler operating under gravity conditions as a polishing method for removing suspended solids from effluent; (24) Nitrification Process. The biochemical conversion of unoxldized nitrogen (ammonia and organic nitrogen) to oxidized nitrogen (usually nitrate); (25) Nitrogenous Stage. A separate stage of wastewater treatment designed for the specific purpose of converting ammonia nitrogen to nitrate Ntrogen; (26) Phosphate Removal, Biological, The removal of phosphorus from wastewater by an oxic/anoxic process designed to enhance luxury uptake of phosphorus by the microorganisms; (27) Polishing Pond. A holding pond following secondary treatment with sufficient detention time to allow settling of finely suspended solids; (28) Post Aeration. Aeration following conventional secondary treatment units to Increase effluent D.Q. or for any other purpose; (29) Post Aeration. (Cascade) A polishing method by which dissolved oxygen Is added to the effluent by a nonmechaniral, gravity means of flowing down a Wes of steps or weirs; The slow occurring across the steps or weirs moves in a fairly thin layer and the operation of the cascade requires no operator adjustment; thus, zero points are assigned even though this Is an essential step to meeting the llmns of the discharge permit; (30) Powdered to Granular Activated Carbon Feed. A biophysical carbon process that utilizes biological activity and organic absorption by using powdered or granular activated carbon; Virgin or regenerated carbon is feed controlled into the system; (31) Preaeratlon A tank constructed to provide aeration prior to primary treatment; (32) Preliminary Units. Unit. operations in the treatment process, such as screening and comminution, that prepare the liquor for subsequent major operations; (33) Industrial Pretreatment. (a) Pre-treatment Unit, Industrial. The conditioning of a waste at its source before discharge, to remove or 10 neutralize substances injurfous to sewers and treatment processes or to effect a partial reduction in load on the treatment process which is operated by the same governing body as the wastewater treatment plant being rated; b) Pre-treatment Program, Industrial - must be a State or EPA required program to receive points on the rating sheet; (34) Primary Clarifiers, The first settling tanks through which wastewater is passed In a treatment works for the purpose of removing setlieable and suspended solids and BOD which Is associated with the solids; (25) Pumps. All influent, effluent and in -plant pumps; (36) Radiation Dis€nfeclion or sterilization process utilizing devices em€tting ultraviolet or gamma rays; (27) Reverse Osmosis, A treatment process In which a heavy contaminated liquid is pressurized through a membrane forming nearly pure liquid free from suspended solids; (36) Rotating Biological Contractors. A fixed blolog€cal growth process In which wastewater flows through tanks in which a series of partially submerged circular surfaces are rotated-, (39) Sand Filters: (a) Intermittent Biological. Filtration of effluent following septic tanks, lagoons, or some other treatment process In which further biodecomposltion is expected to produce desired effluents; Hydraulic loading rates on these lifters are computed In gpolac and have a resulting low gprTtirsf (Jess than one); b) Recircuial'ng biological - the same type of sand finer as defined in Subparagraph (39) (a) of this Rule with rho added capability to recycle effluent back through the sand finer; (40) Sand or Mixed -Media F1ners" A polishing process by which effluent limns are achieved through a further reduction of suspended solids; (a) low rate — gravity, hydraulically loaded titer with loading rates in the one to three gpm/sf range; (b) high rate — a pressure, hydraulically loaded filter with loading rates in the five gpnvsf range; At arry rate, the loading rate will exceed three gprrVsf; (41) Secondary Clarifiers. A tank which follows the biological unit of treatment plant and which has the purpose of removing sludges associated with the biological treatment units; (42) Separate Sludge Reaeration A part of the contact stabilization process where the activated sludge Is transferred to a tank and aerated before returning It to the contact basin; (43) Septic Tank. A single -story settling tank in which settled sludge Is In contact with the waslewater flowing through the tank; shall not be applicable for septic tank systems serving single family residences having capacity of 2,000 gallons or less which discharge to a nitrification fluid; (44) Sludge Digestion. The process by which organic or volatile mailer and sludge is gasified, liquefied, mineralized or converted into more stable organic matter through the activity of living organisms, which includes aerated holding tanks; (45) Sludge Drying Beds. An area comprising natural or artificial layers of porous materials upon which digested sewage sludge Is dried by drainage and evaporation; (4-5) Sludge Eiutrial€on. A process of sludge conditioning In which certain constituents are removed by successive washings with fresh water or plan effluent,, (47) Sludge Gas Utllizatlon The process of using sewage gas for the purpose of heating buildings, driving engines, etc.; (48) Sludge Holding Tank (Aerated and Nonaerated). A tank utilized for small wastewater treatment plants not conlalnIng a digester In which sludge may be kept fresh, and supernatant withdrawn prior to a drying method (i.e. sludge drying beds); This may be done by adding a small amount of air simply to keep the sludge fresh, but not necessarily an amount that would be required to achieve stabilization of organic matter. A nonaerated tank would simply be used to decant sludge prior to dewatering and would not allow long periods (several days of detention) without resulting odor problems; (49) Sludge lnclnerators. A furnace designed to bum sludge and to remove all moisture and combustible materials and reduce the sludge to a sterile ash; t50) Sludge Stabilization (Chemical or Thermal). A process to make treated sludge less odorous and putrescloie, and to reduce the pathogenic organism content: This may be done by pH adjustment, chlorine dosing, or by heat treatment; (51) Sludge Thickener. A type of sedimentation tank In which the sludge Is permitted to settle andthicken . cken through agitation and gravity; (52) Stabilization Lagoon A type of oxidation lagoon in which biological oxidation of organic matter is effected by natural transfer of oxygen to the water from air (not a polishing pond); (53) Stand -lay Power Supply. On she or portable electrical generating equipment; (54) Stalic Screens. A stationary screen designed to remove solids, including nor�blodegradable particulate (floatable solids, suspended solids and SOD reduction} from municipal and industrial wastewater treatment systems; (55) Tertiary Treatment. A stage of treatment following secondary which Is primarily for the purpose of effluent polishing; A settling lagoon or card or coa[ finer might be employed for this purpose; (56) Thermal Pollution Control Device. A device providing for the transfer of heat from a fluid flowing In tubes to another fluld outside the tubes, or vice versa; or other means of regulating liquid temperatures; (57) Thermal Sludge Conditioner. A conditioning process by which heat is added for a protracted period of time to improve the dewaterabllny of sludge by the solubilizing and hydraulizing of the smaller and more highly hydrated sludge particles; (50) Toxic Materials. Those wastes or combinations of wastes, Including disease -causing agents which after discharge and upon exposure, Ingestlon, Inhalation or assimilation into any organism, either directly from the environment or indirectly by ingestion through food chairs, will cause death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions (including malfunctions in reproduction) or physical delormalions, In such organisms or their offspring; Toxic malerWs Include, by way of Illustration and not Jimitaflon: lead, cadmlum, chromium, mercury, vanadium, arsenic, zinc, ortho-rdtro-chiorobenzene (ONCE), polychlorinated blphenyls (PCBs) and dichlorodiphenyl trlchloroethane (DDT); and any other materials that have or may hereafter be determined to have toxlc properties; (69) Trickling Finer. A biological treatment unit consisting of a malarial such as broken stone or rock over which wastewater is distributed; A high rile trickling finer Is one which operated at between 10 and 30 mgd per acre. A low rate trickling finer Is one which is designed to operate at one to four mgd per acre; (60) Trickling Filler (Packed Tower). A plug flow type of operation In which wastewater flows down through successive layers of media or filtrate material; Organic material Is removed continually by the active biological fixed growth In each successive layer. This method may produce 'secondary" quality affluent, or may be adapted to produce a unrifled effluent; (61) Vacuum Finer, Cen"vges, or Finer Presses. Devices which are designed to remove excess water from either digested or undigested sludge prior to disposal or further treatment.