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HomeMy WebLinkAboutWQ0014306_Final Permit_19990305State of North Carolina '1epartment of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director March 5, 1999 Mr. Raymond Gottlieb, Manager Sandler at Mill Run, L.C., a Limited Liability Company 448 Viking Drive — Suite 225 Virginia Beach, Virginia 23452 fflk�'W'A IT f NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NAruRAL RESOURCES Subject: Permit No. WQ0014306 Sandler at Mill Run, L.C., a Limited Liability Company Eagle Creek Subdivision Wastewater Treatment and Reclaimed Water Utilization System Currituck County Dear Mr. Gottlieb: In accordance with your application received November 20, 1998, we are forwarding herewith Permit No. WQ0014306, dated March 5, 1999, to Sandler at Mill Run, L.C., a Limited Liability Company for the construction and operation of the subject wastewater treatment and reclaimed water utilization system. The permit has been modified to include the construction and operation of a temporary 18,000-GPD extended -aeration treatment plant. This permit shall be effective from the date of issuance until December 31, 2002, shall void Permit No. WQ0014306 issued January 7, 1998, 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 150E 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. One set of approved plans and specifications is being forwarded to you. If you eed additions] information concerning this matter, please contact ] ,Soni°Gardin at (919) 733-5083 extension 509. Sincerel , Preston Howard, Jr., P.E. cc: Currituck County Health Department Bissell Professional Group Washington Regional Office, Water Quality Section Washington Regional Office, Groundwater Section Bob Cheek, Groundwater Section, Central Office Technical Assistance and Certification Unit Non -Discharge Compliance/Enforcement Unit PO Box 29535, Raleigh, North Carolina 27626-0535 Telephone (919) 733-5083 Fax (919) 733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES RALEIGH WASTEWATER TREATMENT AND RECLAIMED WATER UTILIZATION 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 Sandler at Mill Run, L.C., a Limited Liability Company Currituck County FOR THE construction and operation of a 350,00-GPD wastewater treatment plant, a 18,000-GPD temporary wastewater treatment plant, and reclaimed water utilization system. Wastewater flows shall be limited to 18,000 GPD until the 350,000-GPD wastewater treatment facility has been constructed and certified by the design engineer. Once the 350,000-GPD wastewater treatment facility is operational, wastewater flows shall be limited to 321,000 GPD due to the available irrigation area. The 350,000-GPD dual -path extended aeration wastewater treatment plant will consist of an 87,500-gallon flow - equalization basin with dual 243-GPM pumps and a single 300-CFM blower, a manually -cleaned bar screen, a flow-splitter box, two 228,00-gallon aeration basins with one basin consisting of a 45,000-gallon section and a 183,000-gallon section, one 148,250-gallon clarifier and one 28,220-gallon clarifier, one 32,100-gallon aerated sludge -holding tank, two 2,000-CFM blowers, one 23-cell travelling -bridge filter with a total area of 348 square feet, and all associated piping, valves and appurtenances. The 18,000-GPD dual -path extended aeration wastewater treatment plant will consist of a manually -cleaned bar screen, a 4,500-gallon flow equalization basin with dual 12.5-GPM pumps and a single 35-CFM blower, a flow- splitter box, two 12,791-gallon aeration basins, one 3,837-gallon aerated sludge -holding tank, two 191-CFM blowers, two 2,382-gallon clarifiers, two 7.0-square-foot tertiary filters, a 1,580-gallon clear well with two 105- GPM backwash pumps, a 1,390-gallon backwash return tank with two 14-GPM pumps, one 12-CFM air -scour blower, and all associated piping, valves, and appurtenances. The treatment systems also consist of ultraviolet disinfection, one 30,080-gallon effluent -dosing tank with dual 608- GPM pumps, high-water alarms, and approximately 450 linear feet of 10-inch force main, a gasoline -powered stand-by generator with automatic transfer switch, a continuous monitoring and recording turbidometer, a continuous monitoring and recording flow meter, and a 5.5-MG infiltration pond. The infiltration pond is in lieu of a lined 5-day upset pond. The 321,000-GPD reclaimed water spray irrigation system will consist of a 10.5-MG wet -weather storage and irrigation pond and approximately 137.2 acres of irrigation area. The wastewater treatment and reclaimed water spray irrigation system will serve the Eagle Creek Development off of SR 1215 (36°29' N, 76°10' W) with no discharge of wastes to the surface waters, pursuant to the application received November 20, and in conformity with the project plan, specifications, and other supporting data subsequently filed and approved by the Department of Environment and Natural Resources and considered a part of this permit. This permit shall be effective from the date of issuance until December 31, 2002, shall void Permit No. WQ0014306 issued January 7, 1998, and shall be subject to the following specified conditions and limitations: I. PERFORMANCE STANDARDS Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting materials. If this project is to be completed in phases and partially certified, you shall retain the responsibility to track further construction approved under the same permit, and shall..provide a final certificate of completion once the entire project has been completed. Mail the Certification to the Non -Discharge Permitting Unit, P.O. Box 29535, Raleigh, NC 27626-0535. 2. The Washington Regional Office, telephone number (252) 946-6481, shall be notified at least forty- eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. The reclaimed water utilization 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 Water Quality (Division), such as the construction of additional or replacement wastewater treatment and 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. 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 Division. 6. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 7. The following buffers shall be maintained: a) 100 feet between wetted areas and water supply wells, b) 100 feet between wetted areas and waters classified as SA, c) 25 feet between wetted areas and surface waters not classified as SA, d) 100 feet between wastewater treatment units and wells, e) 50 feet between reclaimed water storage/irrigation ponds and property lines, and f) 50 feet between wastewater treatment units and property lines. Public access to the irrigation sites shall be controlled during active site use. Such controls may include the posting of signs showing the activities being conducted at each site. A sign shall be posted in plain sight in the clubhouse showing these activities. 2 11: OPERATION AND MAINTENANCE REQUIREMENTS 1. The facilities shall be properly maintained and operated at all times. 2. Upon classification of the facility by the Water Pollution Control System Operators Certification Commission (WPCSOCC), the Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than the classification assigned to the wastewater treatment facilities by the WPCSOCC. The Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of 15A NCAC 8A .0202. The ORC of the facility must visit each Class I facility at least weekly and each Class 11, 111, and IV facility at least daily, excluding weekends and holidays, and must properly manage and document daily operation and maintenance of the facility and must comply with all other conditions of 15A NCAC 8A .0202. Once the facility is classified, the Permittee must submit a letter to the WPCSOCC which designates the operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete. 3. A suitable, year-round vegetative cover shall be maintained on the irrigation areas. 4. Irrigation shall not be performed during inclement weather or when the ground is in a condition that will cause runoff. Adequate measures shall be taken to prevent wastewater runoff from the spray field or the infiltration pond. 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. The application rate shall not exceed a cumulative loading of 31.2 inches over anytwelve (12) month period at an instantaneous application rate not to exceed 0.1 inches per dose. No type of wastewater other than that from the Eagle Creek Development shall be sprayed onto the irrigation area or disposed in the infiltration pond. 9. All wastewater shall be routed to the infiltration pond should the limit for fecal coliform (daily maximum concentration of 25 per 100 ml) or turbidity (instantaneous maximum of 10 NTU) be exceeded, until such time that the problems associated with the treatment capability of the wastewater treatment plant have been corrected. 10. No traffic or equipment shall be allowed on the disposal area except while installation occurs or while normal maintenance is being performed. 11. Vegetative growth must be kept out of the infiltration pond at all times. All vegetation must be removed manually so that minimal disturbance will occur to the disposal area. 12. The application of chemicals to the infiltration pond is expressly prohibited. 13. Proper depth shall be achieved in the drainage ditches surrounding the golf course or a propeller pump shall be installed as proposed in the original application package to ensure that the elevation of the drainage ditches allows the movement of groundwater off site. Permission shall be obtained from the downstream property owners to deepen the ditches. Until such time that the County has established a drainage district, the developer shall be responsible for maintaining the canals for positive drainage. III. MONITORING AND REPORTING REQUIREMENTS 1. Any monitoring (including groundwater, surface water, soil or plant tissue analyses) deemed necessary by the Division to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. As an indicator of proper operation and maintenance, the facility shall produce an effluent in compliance with the following limitations: s c Parameter Monthly AverageDail (Instantaneous) Maximum Flow 18,000 GPD BOD5 (5-day, 20°C) 10 mg/l 15 mg/I NH3 as N 4 mg/I 6 mg/1 TSS 5 mg/1 10 mg/1 b Fecal Coliform 14 per 100 ml 25 per 100 ml Turbidity 10 NTU a Monthly averages for all but fecal conform shall be the arithmetic mean of all samples collected during the reporting period. b Monthly average for fecal coliform shall be the geometric mean of all samples collected during the reporting period. 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 wet-weather/irrigation pond for the following parameters: Parameter Sampling Point Sampling Frequency Type of Sample Flow Influent or Effluent Continuous Recording Turbidity Effluent Continuous Recording BOD5 (5-day, 20°C) Effluent *2/Month Composite NH3 as N Effluent *2/Month Composite TSS Effluent *2/Month Composite Fecal Coliform Effluent *2/Month Grab Settleable Matter Effluent Daily Grab NO3 as N Effluent **Triannually Grab TDS Effluent **Triannually Grab TOC Effluent *Triannually Grab Chloride Effluent **Triannually Grab The effluent pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. * 2/Month sampling frequency only during the months of April through October. During the remainder of the year, these parameters shall be monitored monthly. ** Triannually sampling shall be conducted during March, July, and November. If Groundwater sampling indicates or predicts problems with the compliance with Groundwater Standards, this permit will be modified to include additional and/or more restrictive limitations. 4 Adequate records shall be maintained by the Permittee tracking the amount of wastewater disposed. These records shall include, but are not necessarily limited to the following information: a. date and time of irrigation or infiltration, b. volume of wastewater irrigated or infiltrated, c. zone irrigated, d. length of time zone is irrigated, e. continuous weekly, monthly, and year-to-date hydraulic (inches/acre) loadings for each zone and infiltration pond, f. weather conditions, and g. maintenance of cover crops and infiltration pond. 4. Three (3) copies of all operation and disposal records (as specified in Condition 111. 3.) on Form NDAR-1 shall be submitted on or before the last day of the following month. Three (3) copies of all effluent monitoring data (as specified in Condition 111. 2.) on Form NDMR-1 shall be submitted on or before the last day of the following month. All information shall be submitted to the following address: NC Division of Water Quality Water Quality Section Nan -Discharge Compliance/Enforcement Unit Post Office Box 29535 Raleigh, North Carolina 27626-0535 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 oxygenin 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 of calibration of flow measurement device. e. 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 number (252) 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 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 directly to receiving waters without treatment of all or any portion of the influent to such station or facility. d. Any time that self -monitoring information indicates that the 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 five (5) days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. IV. GROUNDWATER REQUIREMENTS 1. Prior to beginning waste disposal operations, two monitor wells (MW-1 and MW-2) shall be installed to monitor groundwater quality around the infiltration pond. The wells shall be constructed such that the water level in the well is never above or below the screened (open) portion of the well at any time during the year. The general location and name for each well is marked on Attachment A. Each monitoring well shall be located at the review boundary, constructed in accordance with this permit, and approved by the Washington Regional Office. All wells that are constructed for purposes of groundwater monitoring shall be constructed in accordance with 15A NCAC 2C .0108 (Standards of Construction of Wells Other than Water Supply) and any other state and local laws and regulations pertaining to well construction. The Washington Regional Office, telephone number (252) 946-6481, shall be notified at least forty- eight (48) hours prior to the construction of any monitoring well so that an inspection can be made of the monitoring well location. Such notification to the regional groundwater 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. 4. Within thirty days of completion of all well construction activities, a certification must be received from a professional engineer certifying that the monitoring wells are located and constructed in accordance with the Well Construction Standards (15A NCAC 2C) and this permit. This certification should be submitted with copies of the Well Completion Form (GW-1) for each well. Mail this certification and the associated GW-1 forms to the Permits and Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578. Within sixty days of completion of all monitoring wells, thePermittee shall submit two original copies of a scaled topographic map (scale no greater than 1":100') signed and sealed by a professional engineer or a state licensed land surveyor that indicates all of the following information: a. the location and identity of each monitoring well, b. the location of all components of the waste disposal system, c. the location of all property boundaries, d. the latitude and longitude of the established horizontal control monument, e. the relative elevation of the top of the well casing -(which shall be known as the "measuring point"), and f. the depth of water below the measuring point at the time the measuring point is established. The survey shall be conducted using approved practices outlined in North Carolina General Statutes Chapter 89C and the North Carolina Administrative Code Title 21, Chapter 56. The surveyor shall establish a horizontal control monument on the property of the waste disposal system and determine the latitude and longitude of this horizontal control monument to a horizontal positional accuracy of +/- 10 feet. All other features listed in a. through e. above shall be surveyed relative to this horizontal control monument. The positional accuracy of features listed in a. through e. above shall have a ratio of precision not to exceed an error of closure of 1 foot per 10,000 feet of perimeter of the survey. Any features located by the radial method will be located from a minimum of two points. Horizontal control monument shall be installed in such a manner and made of such materials that the monument will not be destroyed due to activities that may take place on the property. The map shall also be surveyed using the North American Datum of 1983 coordinate system and shall indicate the datum on the map. All bearings or azimuths shall be based on either the true or NAD 83 grid meridian. If a Global Positioning System (GPS) is used to determine the latitude and longitude of the horizontal control monument, a GPS receiver that has the capability to perform differential GPS shall be used and all data collected by the GPS receiver will be differentially corrected. The maps and any supporting documentation shall be sent to the Permits and Compliance Unit, Groundwater Section, P.O. Box 29578, Raleigh, NC, 27626-0578. For the initial sampling of the well as specified elsewhere in the permit, the Permittee shall submit a copy of the GW-1 Form (Well Completion Form) with the Compliance Monitoring Form (GW-59) for that well. Compliance Monitoring Forms that do not include copies of the GW-I form will be returned to the Permittee without being processed. Failure to submit these forms as required by this permit may result in the initiation of enforcement activities pursuant to NC General Statutes 143-215.6. Monitor wells MW-I and MW-2 shall be sampled initially after construction (and prior to waste disposal operations) and thereafter every March, July, and November for the following parameters: Water Level pH Chloride Total Dissolved Solids (TDS) Fecal Coliform Total Organic Carbon (TOC) Nitrate -Nitrogen (NO3-N) Total Ammonia Total Phosphorous 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/1 are detected in any downgradient monitoring well, additional sampling and analysis must be conducted to identify the individual constituents comprising this TOC concentration. If the TOC concentration as measured in the background monitor well exceeds 10 mg/l, this concentration will be taken to represent the naturally occurring TOC concentration. Any exceedances of this naturally occurring TOC concentration in the downgradient wells shall be subject to the additional sampling and analysis as described above, The results of the sampling and analysis must be received on Form GW-59 (Groundwater Quality Monitoring: Compliance Report Form) by the Groundwater Section, Permits and Compliance Unit, P.O. Box 29578 Raleigh, N.C. 27626-0578 on or before the last working day of the month following the sampling month. 8. Any additional groundwater quality monitoring, as deemed necessary by the Division, shall be provided. The COMPLIANCE BOUNDARY for the reclaimed water disposal system (including the wastewater treatment facility, the irrigation pond, and the spray fields) is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. For disposal systems using reclaimed water, Regulation 15A 2H .0219 (k) specifies that both the Compliance Boundary and Review Boundary are established at the property boundary. 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. 10. The COMPLIANCE BOUNDARY for the infiltration pond disposal system is specified by regulations in 15A NCAC 2L, Groundwater Classifications and Standards. The Compliance Boundary is for the disposal system individually permitted after December 31, 1983 is established at either (1) 250 feet from the waste disposal area, or (2) 50 feet within the property boundary, whichever is closest to the waste disposal area. An exceedance of Groundwater Quality Standards at or beyond the Compliance Boundary is subject to immediate remediation action in addition to the penalty provisions applicable under General Statute 143-215.6A (a) (1). In accordance with 15A NCAC 2L, a REVIEW BOUNDARY is established around the disposal systems midway between the Compliance Boundary and the perimeter of the waste disposal area. Any exceedance of standards at the Review Boundary shall require remediation action on the part of the Permittee. V. INSPECTIONS I . Adequate inspection, maintenance, and cleaning shall be provided by the Permittee to insure proper operation of the subject facilities. The Permittec 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 or other permitting authority. Any duly authorized officer, employee, or representative of the Division may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the 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. VI. GENERAL CONDITIONS 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. 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 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 in accordance with North Carolina General Statute 143-215.6A to 143-215.6C. 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. A set of approved plans and specifications for the subject project must be retained by the Permittee for the life of the project. The annual administering and compliance fee must be paid by the Permittee within thirty 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). 8. The Permittee, at least six (6) months prior to the expiration of this permit, shall request its extension. Upon receipt of the request, the Commission will review the adequacy of the facilities described therein, and if warranted, will extend the permit for such period of time and under such conditions and limitations as it may deem appropriate. 9. The Operational Agreement between the Permittee and the Environmental Management Commission is incorporated herein by reference and is a condition of this permit. Noncompliance with the terms of the Operation Agreement shall subject the Permittee to all sanctions provided by North Carolina General Statute 143-215.6A to 143-215.6C for violation of or failure to act in accordance with the terms and conditions of this permit. Permit issued this tWifth day of March, 1999 NORT7-OL71NAEN770TAL MANAGEMENT COMMISSION A. Preston Howard, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Permit Number WQ0014306 9 Permit No. WQ0014306 March 5, 1999 ENGINEER`S CERTIFICATION Partial Final I, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, Project Nanze Location and County for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of this permit, the approved plans and specifications, and other supporting materials. Signature Date Registration No. 10 ri STATE OF NORTH CAROLINA r R A`:-,!.rPermit No. MO 14 30(o ` A _ r COUNTY OF CURRITUCK OPERATIONAL AGREEMENT THIS AGREEMENT made pursuant to G.S.- 143-125.1(dl) and entered into this --I �+ day of ��,�?, 199g, by and between the North Carolina Environmental Management Commission, an agency of the State of North Carolina, hereinafter known as the COMMISSION; and Sandler at Mill Run, L.C. a Limited Liability Company; hereinafter known as the DEVELOPER; and Eagle Creek Owners Association, hereinafter known. as OWNERS' ASSOCIATION; and Eagle Creek Water and Sewer Association, Inc., hereinafter known as WATER AND SEWER ASSOCIATION. W I T N E S S E.T H 1- The DEVELOPER is or will become the owner of certain lands lying in Currituck County, upon which it is subdividing lots and erecting other improvements, said development to be known as Eagle Creek Subdivision (hereinafter the Development). 2. The DEVELOPER desires, to construct a wastewater collection system with pumps, wastewater treatment works and/or disposal facilities (hereinafter Disposal System) to provide sanitary sewage disposal to serve the Development on said lands. 3. The DEVELOPER has applied to the COMMISSION for the issuance of a permit pursuant to G.S. 143-215.12 to construct, maintain, and operate the Disposal System. 4. The DEVELOPER has created or shall create' a subdivision pursuant to the Subdivision Ordinance of Currituck County, North Carolina and a Declaration of Covenants and Restrictions shall be filed with the Currituck County Register of Deeds. 5. The DEVELOPER has caused to be formed or will cause to be formed the Eagle Creek Owners' Association and the Eagle Creek Water and Sewer Association, Inc., both non-profit corporations organized and existing Association By -Laws and Articles of Incorporation for the existing Association. ,E 3. In the event of a transfer by the Developer to the Owners' Association of the Disposal System and appurtenances thereto, the DEVELOPER shall provide in the By -Laws that the Disposal System and appurtenances thereto are part of the common elements. The Owners' Association By -Laws shall identify the entire wastewater treatment, collection and disposal system as a common element which will receive the highest priority for expenditures by the Owners' Association except for Federal, State, and local taxes and insurance. 4. In the event of a transfer by the Developer to the Owners' Association of the Disposal System and appurtenances thereto, the DEVELOPER shall provide in the Declaration of Covenants and Restrictions that the Disposal System will be maintained through service fees or charges and special assessments imposed upon the lot owners by the Declaration of Covenants and Restrictions. In order to assure that there shall be funds readily available to repair, maintain or construct the Disposal System, beyond the routine operation and maintenance expenses, the Declaration of Covenants and Restrictions shall provide that a fund be created out of the assessments. Such funds be separate from the routine maintenance allocated for the facility and shall be part of the yearly budget. 5. In the event the common expense allocation and separate funds are not adequate for the construction, repair, and maintenance of the Disposal System, the Declaration -of Covenants and Restrictions shall provide for special assessments to cover such necessary costs. There shall be no limit on the amount of such assessments, and the Declaration of Covenants and Restrictions shall provide that such special assessments can be made as necessary at any time. 6. If a wastewater collection system and wastewater treatments' and/or disposal facility provided by any city, town, village, county, water and sewer authorities, or other unit of govdrnment shall IN WITNESS WHEREOF, this agreement was executed in duplicate originals by the duly authorized representative of the parties hereto on the date and year as indicated by each of the parties named below: FOR THE WVIRONME TAL MANAGE T CO IS -� A. Preston Howard, Jr., F.E. Director Division of Water Quality Date SANDLER AT MI# RUN, L.C. BY: Manager Raymond L. Gottlieb Wi 13fps r 4F AZI, 715 ills. f 117 fai is �._7 57 i`Tfij, 1p, r. Mix SOT IN, Ja 4 t. -1-j RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS Name of Facility:. �c2L.�,. Owner or Contact Person, 6-7`.L i T--- r� Mailing Address: VIe;.,e-->< tD VE ) t / �1Gf•! i� ?C�}`" County: Telephone: 757- — f f Present Classification.' New Facility Existing Facility NPDES Per. No. NC00 Nondisc. Per. No.WQd B6 Health Dept.Per No. Rated by: ` Date: — Reviewed by: Health Dept. Telephone: Regional Office Telephone: Central OffiGe Telephone: OR -•= -• • Check •n(s): Subsurface Spray•. • r A•• ■ Classification:Wastewater •ne) I III IV Total P• ------------------------------------------------------------- iti :•i PACCESSES ANQ BEI ATEED\Ila>• EQUIEMENI llr E■ . a :\ �, ►It,• :tl �► S I: s r:• �• 1a3ALL NOT w,\� r : r � y 1 1: : hi=►i ate: [■ i ::.+- �,. II..: 1�\ * �1, :►.. >` 1+u ��► YI►. �► + �1. :►. :\� If ►11: ham► • , ,,;/ p:��u :? �. �► SUBSURFACE CLASSIFICATION (check all units that apply) 1. septic tanks 2. pump tanks 3. siphon or pump -dosing systems 4. sand filters 5. grease trapfinterceplor 6. _ oil/water separators 7. gravity subsurface treatment and disposal: 8. pressure subsurface treatment and disposal: --------------------- SPRAY 1RRIGAMON CLASSIFICATION (check all units that apply) 1. preliminary treatment (definition 2. lagoons 3. septic tanks 4, pump tanks 5. pumps 6. - sand filters 7. grease traprtnterceplor a. oil/water separators no, 32 ) 9_disinlection 10. chemioat addition for nutrienttalgae control 11. 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 duel certification. LAND APPLICATIONIRESIDUALS 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, yolesn 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. Oilfwater Separator Systems consisting only of physical separation, pumps and disposal; 2. Septic Tank/Sand Filter Systems consisting only of septic tanks, dosing apparatus, pumps,sand fillers, 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 ollfwater separators, pumps, air -stripping, carbon adsorption, disinfection and disposal; 6. Aquaculture 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 If 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. The following scale is used for rating wastewater treatment facilities: (circle appropriate points) ITEM POINTS ( 1 ) industrial Pretreatment Units or industrial Pretreatment Program (see definition No. 33)...................................................4 (2) DESIGN FLOW OF PLANT IN gpd (rat applicable to non -contaminated cooling waters, sludge handling facilities for water purification plants, totally closed cycle systems(ses definition No. 11), and facilities consisting only of ham (4)(d) or Items (4)(d) and (11)(d)) 0 - 20,000......................................................................................................................................... ..... 20,001 - 60,000...........................................................................,........................................,................. 60,001 - 100,000..................................................... ....................................... ............ ............ I .......... ..... 3 100.001 - 250,000.............. ................................................................................ ................................... A 250,001 - 600,000........................................................................................ ............5 500,001 '-1,000,000............................................................................................................................ B 1,000,001 - 2,DD0.D00...........................................................................................................................10 2,000,001 (and up) I add l nal for each 200,D0o gpd capacity up to a maximum of .._. ,.. ....30 Design Flow (gpd) v (3) PRELIMINARY UNITSIPROCESSES(we fir"n .32) (a) Bar Screens........................................................................:....................................................................Later or (b) Mechanical Screens, Static Screens or Comminuting Devices .............................................. _......................... 2 (c) GO Removal..............................................................................................................................................1 or (d) Mechanical or Aerated Grit Removal ........................................................................................................... (a) Flow Measuring Dwice......................................................................................................................... 1 or (f) Instrumented Flow Measurement................................................................................................................2 (g) Preaeratlon............................................................................................................................................ (h) Influent Flow Equalization......................................................................................................................... (1) Grease or Oil Separators - Gravity.......................................................... .............. ........................ .......... ... Mechanical..................._-._........,..........................................................................................................3 DissolvedAlr Flotation................................................................................................................................a fl) Prechlorination..................................................................................................................5 (4) PR1MARYTREADAENTLNrrS/PFlOCESSFS (a) Sepilc Tank (see deffnlllon No. 43)......................................... ..................................... ........... ................... 2 (b) Imhoff Tank..............................................................................................................................................5 (c) Primary Clarifiers................................................... .......................5 (d) Settling Ponds or Settling Tanks for Inorganic Norrioxic Materials (sludge handling facilities for water purification plants, sand, gravel, stone, and other mining operations except recmaiiona[ activities such as gem orgold mining) ............................................ ............ .................. ...................................... I.......... I.-........2 (5) SECONakRYTREATMENT tI ITTSIPROCESSES (a) Carbonaceous Stage (1) Aeration -High Purity Oxygen System............................................................................. DiffusedAir System.........................................................._.................................... Mechanical Air System (fixed, floating or rotor)........... .......... ................ :_..._... _....._... SeparateSludge Reaeration............................................................................................3 (li) Trickling Filter HighRate.......................................................................................................................7 StandardRate ............................................. ................................................................... 6 PackedTower.................................................................................................................5 (111) Blologicar Aerated Filter or Aerated Biological Fiher ... .. .............. ... ». ........_ .10 (IV) Aerated Lagoons..........................................................................................................10 (v) Rotating Biological Contactors......................................................................................10 (vi) Sand Fillers -intermittent biological..................................................................................2 Recirculatingb[oiaglcal....................................................................................................3 (vll) Stabtfizalion Lagoons.................................................................................................... (will) clarifier .................................................................................................................... ..S (Ix) Single stage system for combined carbonaceous removal d BOD and nitrogenous romav nitrification (sea definition No. 12)(Poinls for this hem have to be in addition to hems (5)(a)(1) through (5)(a)(viil), utilizing the extended aeration process (see definition No.3a)..........................................2 utulzing other than the extended aeration procsss............................... ..........................0 (x) Nutrient additions to enhance 801) removal......................................................................5 (x1) Biological Culture ('Super Bugs')addhion.......................................................................5 (b) Nitrogenous Stage (1) Aeration - High Purity Oxygen System ....... .......................... ................ .................. 20 DlifusedAir System ............. .._...............................................................10 Mechanical Air System (fixed. floating or rotor).................................................................2 Separate Sludge Reaeratlon.............................................................................................3 (II) Trtdcling Fitter -High Rats ...... ...................................................... ..... .. .............................. 7 Standard Rats...............................................................................................................5 PackedTower.. ..... ...................... ....................... .................. .... . .............5 (111) Biological Aerated Filter or Aerated Biological Miter........0 (Iv) Rotating Bloioglcal Contaclom......................................................................................10 (v) Sand Filter - Intermittent biological...................................................................................2 Recirculating biological....................................................................................................3 (VI) tlarrier...........................................................................................................................5 (6) TERTIARY OR ADVANCEDTREATMENT UNITS/PROCESSES (a) Activated Carbon Beds - without carbon regeneration...................................................................................................6 wtth carbon regeneration............................................................................................15 (b) Powdered or Granular Activated Carbon Feed- vAlhoutcarbon regeneration..................................................................................................5 -with carbon regeneration .............. ........ .................. .......................................................... A 5 (c) Air stripping. ........... .............................. ..................... ........ ............................................................. (d) Denhrillcation Process ................................... —-...................................................».........-......................1 0 (0) Electrodlalysis........................................................................................ ........................................ .5 (1) Foam Separation ......................................................................................................................................5 (g) Ion 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... ([) Microscreens.......... ......... ..................................................... {)) Phosphorous Removal by Biological Processes (Sae dellnnion No. 26)........................................................2 D (k) Polishing Ponds - without aeration...............................................................:...........»...............................2 withaeration............................................................... ..... ...................... ... .................. 5 Aeration cascace......... .................... .. .„................................. ............. :. diffused or mochanlcZ...„................. .•-................„..„........».._..._..............„........._......2 (m} Reverse Osmosis_ .................. .................. „... ............................. __................. ............. .................... .......... In) Sand or Mixed -Media Fliters - low rate ............. ................................... „............ ............. .._................ . highrate.. ..................... . . ...... . ............... I ................. ( o) Trsatment processes for removal of metal or cy"o..........................„...„.„.»............................................7 5 (p) treatment processes for removal o1 toxic materials other than metal of (7) SUJOGETREATMENT (a) Sludge Digestion Tank -Pleated (anaerobic)....................................................„...„..............._............_......10 Aerobic............ ..................................................... ......................... ............................... ...... I............ Unhealed(anaerobic)................................................................................................................................3 (b) Sludge Stabilization (chemical or thermal) ...... «............................................................................................6 (c) SludgeDryingBodo- Gravity...........................................„..........................................„.......„....................2 Vacuum Assisted..................„..................................................................................................................5 (d) Sludge Buirlallon...................................................................................................................................... 5 (e) Sludge Conditioner (chemical or thermal)...................................................................................................5 (1) Sludge Thickener (gravity) ................ ........................... ............................................................5 (g) Dissolved Air Flotation Unit [not applicable to a unit rated as(3)(1))............... ........................................ ..... f! ( h ) Sludge Gas Utilization (Including gas storage) ....... «..................... .................... _................................ (1) Sludge Holding Tank Aerated ................................. ........ _........ ............................................. ............. Non -aerated................................. ... ......................................................................... ([} Sludge Incinerator (not Including activated carbon regeneration)................................................................10 (k) Vacuum Fiher, Centrifuge, or Filter Press or other similar dawaiering devices...................................................10 (s) RESIDUALS UTILIZATIOWDISPOSAL (including incinerated ash) {a} Lagoons, ..........................................................................2 {b} Land Application (surface and subsurface) (sea definition 22a) by contracting to a land application operator or landfill operator who holds the land application permit orlandfill permit.......:........................................................................................................................ ....{ 2 (c) Dedicated Landfill(budal) by the permhtes of the wastewater treatment facillty.... ....... „.............. ........._..... (9) D1sr�cricN (a) Chlorination.............................................................................................................................................5 (b) Dechlodnation...........................................................................................................................................6 (e) Ozone..................................................................„...........................................................................:. (d) Radiation.......................................................................................................................„................. (10) CHEMICAL ADDITION SYSTEM(S) ( sae definition No. 9) [riot applicable to chemical addhions rated as hem (3)0), (6)(a)(xl). (6)(a), (6)(b). (7)(b), (7)(s). (9a). (o)(b) or (0)(c) 5 points each- List..................................„................................................................................................5 ..................................................................................................................................5 .............................................. „....... ..................................... ......................... ,.............. ......................................................................................................................................5 (1 1) MISCBIANEOUS UNITSWIOCES S. (a) holding Ponds, Holding Tanks of Settling Ponds for Organic or Toxic Materials Including wastes from mining operations containing nitrogen or phosphorus compounds in amounts significantly greater than Is common fordomesllc 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 Inherent In land application (d) Pumps................................................................................................................................................ (a) Stand -By Power Supply........................................................................................................... (f) Thermal Pollution Control Device.............. ....................................... ......... ........................................ TOTAL POINTS....................................................................... CLASSiFMTI N ............................................................................................5.25 Points ass II ......» ..................... .................. .......................................... —26.50 Points ...... .................... .................. ....................................................... 51-85 Points C3M N....„...............................................................................................„66-Up Points ---------------------------------------- ----------------- Facllhl-3s having a rating of one through four points, Inclusive, do not require a cerfilled operator. Facilities having an activated sludge process will be assigned a minlmum classification of Class 11. Facilhles having treatment processes forihe removal of metal or cyanide will be assigned a minimum classification of Class It. Facilities having treatment processes for the biological removal of phosphorus will be assigned a minimum classtricatlon o1 Class III. .DM4 DEFZNrrIONS The following definitions shall apply throughout this Subchapter, (1) Activated Carbon Beds. A physical/chamicaf method for reducing soluble organic material from wastewater efiluerri; The column -type beds used in this method will have a liaw rate varying from two to eight gallons per rninule per square foot and may be either upflow or downflow carbon beds. Carbon may or may not be regoneraled on the wastewater treatmert plant she; (2) Aerated Lagoons. A basin In which all solids are maintained In suspension and by which biological oxidation or organic matter is reduced through artificially accelerated transfer of oxygen on a lfow-through basis; (3) Aeration. A process of bringing about Intimais contact between air or high purity oxygen In a liquid by spraying, agitation or diffuslon;(3a) Extended Aerallon. An activated sludge process utilizing a minimum hydraulic detention time of 18 hours. (4) Agriculturally managed site. Any she on which a crop is produced, managed, and harvested (Crop Includes grasses, grains, bees, sic.); (5) Air Stripping. A process by which the ammonium Ion Is first converted 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 benzene, toluene, and xylene; (6) Carbon Reganerallon. The regeneration of exhausted carbon by the use of a lurnace to provide exlrentety high temperatures which volatilize and oxidize the absorbed impurities; (7) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits; (8) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from liquids or to separate liquids of different densr'as; (8) Chemical Addhion Systems- The addition of chemlcal(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment. alkalinity control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific result will be considered one system; the capability to add chamical(s} to dual unfts will be rated as one system; capability to add a chemical at a ditterent application points for ditfsrenl purposes Wit result in the systems being rated as separate systems; (10) Chemical Sludge Conditioning. The addition of it chemlral compound such as lime, 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, iron-Ioxlc materials from sand, gravel, crushed stone or other similar operations. Such systems shall carry a maximum of two paints regardless of pumping facilities or any other appurlersances; (12) Combined Removal of Carbonaceous BOD and Nitrogenous Removal by Nitrification- A single stage system required to achieve permit efiiuert limits on BOD and ammonia nitrogen within the same biological reactor, (13) Dechforinallon. The partial or complete reduction of residual chiorins In a liquid by any chemical or physical process; (14) Denhriflcation Process. The conversion of nttrale-nitrogen to nitrogen gas; RATING SCALE FOR CLASSIFICATION OF WATER POLLUTION CONTROL SYSTEMS Name of Facility: Owner or Contact Person: Mailing Address: F� V j )J' as ► if : ,t � V14- JM County�uy�Z4 Yu e ' r- Telephone:._7'77 Present Classification: New Facility L misting Facility NPDES Per No. NC00 Nondisc. Per. No.WQ3 ealth Dept.Per No. Hated by: Telephone: # Date: t' Reviewed by: Health Dept. Telephone: Regional Office Telephone: Central Office Telephone: ORC: Grade: Telephone: Check Classif!cation (s): Subsurface pray Irrigation Land App'cation Wastewater Classification: (Circle One) I i! III !V Total Points: ► S :►1 ':�� :►� : � �flla� .��. rural air fr : :a ►ll.. :1 � ►i � 1:: �:��� Ili► fir: ►� L09• 9 prief0i ICE 1:1 =AllI &12 2 10 RR: i■ i :3►9, _ �� 1�► JI. �►. w` IMF, Via.► �1►. �►- �. �1. :►• --------------------------- SUBSURFACE CLASSfFlCAT1CN (check all units that apply) 1. septic tanks 2. pump tanks 3. siphon or pump -dosing systems 4. sand filters S. grease trapAnterceptor 6. oillwater separators 7. gravity subsurface treatment and disposal: 8. pressure subsurface treatment and disposal: SPRAY IRRIGATION CLASSiF)CATICN (check all units that apply) I. -preliminary treatment (definition no. 32 ) 2. lagoons 3. septic tanks 4. pump tanks 5. pumps 6. sand filters 7. grease traptinterceptor S. oillwater separators 9. disinfection 10. chemlcal addition for nutrient/algae control it. spray Irrigation of wastewater In addition to the above classifications, pretreatment of wastewater In excess of these components sholl 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, untp,&g 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. Oil/water Separator Systems consisting only of physical separation, pumps and disposal; 2. Septic Tank/Sand 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 oillwater separators, pumps, air -stripping, carbon adsorption, disinfection and dispoF,J; 6. Aquaculture operations with discharge to surface waters; 7. Water Plant sludge handling and back -wash water treatment; 8. Sealood processing consisting of screening and disposal. g. Single-family discharging systems, with the exception of Aerobic Treatment Units, will be classified ii permitted after July 1, 1993 or if upon inspection by the Division, H 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. The fallowing scale is used for rating wastewater treatment facilities: (circle appropriate paints) ITEM POINTS (1) Industrial Pretreatment Units or industrial Pretreatment Program (sea ddinitlon No. 33)...................................................4 (2) DESIGN FLOW OF PLANT iN gpd [rot applicable to non -contaminated cooing waters, sludge handling facithles for water purtficatlon plants, totally dosed cycle systems(ses definition No. 11)• and facilities cwnslsling only of Item (4)(d) or Items (4)(d) and (11)(d)] _ 0 - 20,000......................................................................................................................................1 20,001 - 50, ...................................._..........._............................................................................2 50.001 - 100.000....................................................................................................................................3 1 DO,001 250,D00....................................................................................................................................44 250,001 - 500 D00..-....:................................................................................................-................4r+� 500.001 - 1,000.000.................................................................................................................... 1.D00.D01 - 2,DOD,000...........................................................................................................................10 2,000,DO1 (and up) a rr Ig�l tar each 200.D00 gpd capachy up to a maximum of ..�. ........30 Design Flow (gpd) �] (3) PRELIMINARY UNRSJPRDCESSE (see der. ion 32) (a) Bar Scroers.............................._....._...........................:................--................................................. or (b) Mechanical Screens, Static Screens or Comminuting Devices ...... ........................... ........ ............. ........... 2 (c) Grit RemovW..................................................................................................... or (d) (a) Mechanica€ or Aerated Grit Removal.............................................................................................................2 Flow Measuring Device ...... .............................................................. ..................................................... ��,1 or (f) Instrumented Flow Measurement....................................................................................................._..........2 WPraaeratlon ................................................. .......................................................................................... (h) Influent Flow Equalization......................................................................................................I.............. .. (1) Grease or Oil Separators - Gravity_ ............... __ ................................. ......... . .............................................. Mechanical.................................................................................................................................................3 Dissolved AIr Flotation .................................... _.................................................. ........................................ (1) Prechlorinallon............. ............................................................................................................................. 5 (4) PRIMP.RYTREATMENTUJfrS+PROCESSES i I -_ . (a) Septic Tank (see datinfilon No. 43).............................................................................................................2 (b) Imholf Tank.... ............... ..._...............-........................_...... (c) ................................ . ' Primary Clarifiers.......................5 (d) Setifing Ponds or Settling Tanks for Inorganic Non-loxlc Materials (sludge handling facilities for water - purtficatlon plants, sand, gravel, stone, and other mining operafiors except recreational activities such az gem orgold mining)................................................................................................................................2 (5) SECONDARY TREATMENT LUTS+PF10CESSES (a) Carbonaceous Stage (1) Aeratlon-High Purity Oxygen System............................................................................ DiffusedAir System................................................................................................ 10 Mechanical Air System (fixed. floating or rotor) ........... ............ ............ .:............_--...... SeparateSludge Reaeratlon.............................................................................................3 (11) Trk*ling Firer HighRate.................................................................................».........:...:........I.............7 StandardRate..............................................................................................................5 PackedTower.................................................................................................................5 (ill) Bioiogtcar Aerated Flher or Aerated Biological Filter _ ... ......_ ..._ .„.._. .„_.1 0 (tv} Aerated Lagoons..........................................................................................................10 (v) Rotating Biological Contactors.....................................................................................10 (VI) Sand Filters -intermittent biological..................................................................................2 Recirculatingbiological ................. ................... ............................................. .................... (vll) Stabilization Lagoons................................................................................................... (vIU) Clan♦ller..................................................................................................................... ...5 (Ix) Single stage system for combined carbonaceous removal of SOD and nitrogenous remov nhrifitatlon (see definition No. 12)(Polnts for this hem have to be In addition to items , (5)(a)(1) through (5)(a)(vill), ullltzing the extended aeration process (see definition No.3a)..........................................2 ulllizIngother than the extended aeration process...................................,..._.....................a (x) Nutrfsrt additions to enhance BOD removal...................................................................5 (xl) Biological Culture ("Super Bugs')addh€on........................................................................5 (b) Nitrogenous Stage (1) Aeration - High Purity Oxygen System ........ .......................................... .................. 20 DlHusedAir System.......................................................................................................10 Mechanical Air System (fixed, floating or rofar}_ .._._..._,.�__._...... ...�... .,.__.. ......fi Separate Sludge Reaeratlon............................................................................................3 (11) Trickling Filter -High Rate...................................................................................................7 Standard Rate ................ _................................................................................. ........... 4 .. PackedTower................................................................................................................5 pit) Biological Aerated Fitter or Aerated Slological F3ilar..._. ... _. _._...» .... ...1 0 (Iv) Rotating Biological Contadors................ ............... ...................... ...«...... ................... 10 (v) Sand Fliter- Intarmittent bktiogical............................... .............:....................... ............ 2 Recirculating biological....................................................................................................3 (VI) Clarlfsr............................. .............................................................................................5 (s) TERTIARY OR ADVANCED7REA71VIENT UVITSIPROCESSES (a) Activated Carbon Beds - without carbon regeneration.. .............._................. .... ..................................... ......... ......... withcarbon regeneration ......... .... ... ............................................................................ ....... 1 5 (b) Powdered or Granular Activated Carbon Feed - ;without carbon regeneration ... ..... .................................................................... _................ 5 :with carbon regeneration.......................................................................................... ........1 5 (c) Air stripping...............................................«...................................................................................S (d) Donflrtficatlon Process...«........................................................................................................................1 0 is) Electrodlalysis.......................................................................................................................... ...S (f) Foam Separation .................................... ....................................................................... ....... ................. .... 5 (g) Ion Exchange... ... .... ... ....... ...». ...... ....................s (h) Land Application of Treated Effluent (sea definition No. 22b) (riot applicable for sand, gravel, stone and other similar mining operations) by high rate lnllltratlon._..._...._.._......... ............................. (1) ML-roscreens.............................. ................. ......................................................... .......... ......................... . (1) Phosphorous Removal by Biological Processes (See deflnhlon No. 26).......................................................20 (k) Polishing Ponds - without aeration ............... ...................... ................ ........... ................ ...................... 2 withaeration.................................................................................................................5 .... ................. diffusedor mechanlcal................................................... »........... ».......................... ........... 2 (m) Reverse Osmosis..............................................................................................................».....5 ................... (n) Sand or Mixed -Media Fitters - low rate ....................... ..... ................... .............. .................................... high{rate.........................processes.............. o} Treatment for removal of meta........................l or cyanide ... .•..............................................1 5 (p) treatment processea for removal of toxic materials other than metal or cyanide..._-»...»......»». »........»....1 5 (7) SUJDGETREATMENT (a) Sludge Digestion Tank - Heated (anaerobic) ........................ ................... _.................... .............. _.............. 10 Aerobic..........I ... ............... ........................................................................................................ Unheated(anaerobic). . ................................................................................................. (b) Sludge Stabilization (chemical or thernud)..................................................................................................5 (c) Sludge Drying Bedc - Gravity.................................................................................................................2 VacuumAssisted........»...........................................................................................................................5 (d) Sludge Eluldatfon.. ... ................................................................................................5 (e) Sludge Condhioner (chemical or thermal) ....... ........................................ .... ................. ......... ................... 5 (1) Sludge Thickener (gravity)........ ........ ............................................ ».... ............................ 5 (g) Dissolved Air Flotation Unit jnot applicable to a unit rated as(3)(1)j....................:........................................a (h) Sludge Gas Utll€zatlon (including gas storage) ............................ .»...................... ......... ,......... ................... 2 (1) Sludge Holding Tank Aerated....................................................................................................................5 Non -aerated........ ..............»............................................................. 2 O) Sludge Incinerator (not Including activated carbon regeneration)................................................................1 D (k) Vacuum Fiber, Centrifuge, or Flher Press or other similar dewatering devices ..»...............................................10 (6) RESIDUALS UTILIZATIONIDISPOSAL (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 holds the Sand application permit orlandfill permit................................................................................................................................... (g) (c) Dedicated Landflll(burlal) by the parmhtae of the wastewater treatment facility .......................... ..... ...... ...,. (a) Chlorination........................................................................................................................................5 (b) Dechlorinalion................................. ........................................................................................ 5 (c) Ozone............................................................................................................................................. (d) Radiation............................................................................................................................m.........,.. ,. S (1 0) CHEMICAL ADDITION SYSTEM(S) ( see detinhion No. 9) Snot appllcabta to chemical addttions rated as he(3 a), (5)(2)(0), (6)(a), (6)(b), (7)(b), (7)(e), (9a), (9)(b) or (9)(c) 5 points each: List..................................................................................................................................5 ..................................................................................................................................5 ..................................................................................................................................5 {1 t) M1SCSIMEC UNfTS FiOCE65E5.........................................................................................................................5 (a) Holding Ponds, Holding Tanks or Settling Ponds for Organic or Toxic Materials Induding wastes from mining operations containing nitrogen or phosphorus compounds In amounts significantly greater than Is common fordomestic wastewater............................................................................................................................4 (b) Effluent Flow Equalization (not applicable to storage basins which are inherent In land appllcallon systems) ..... 2 (c) Stage Discharge (not applicable to storage basins Inherent in land application systems}....._ .... .... ... (d) .Pumps............................ »... ........................................ ................................ ........................ (e) Stand -By Power Supply..................»...........................................................»....................:.......... (f) Thermal Pollutlon Control Dev[ce.......... .................... ....................... ....»».........................».... TOTALPOINTS....................................................................... CLASSIFICATION .........»........................................................................... .5-25 Points lassI!. ....... . ....................................................................................26-50 Points ClassIV ........................................................................................... I ........... 61-65 Points .......... ....... _..... ............. ,,....... ,......... 66•Up Points " Facllltles having a rating of One through tour points, Inclusive, do not require a certified operator. Facilities having an activated sludge process will be assigned a minimum classification 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 lot the biological removal of phosphorus will be assigned a rrdnlmum cla"Meatlon of Class III. A0C34 DEFiNfflC)IVS ^-------...._...... The following deflnhions shall apply throughout this Subchaptar. (1) Activated Carbon Beds. A physlcal/chemical method for reducing soluble organic malarial from wastewater efffuerd; The cotumn-type beds used In this method will have a flow rate varying from two to eight gallons per minute per square toot and may be either upflow or downflow carbon beds. Carbon may or may not be regenerated on the wastewater treatment plant site; (2) Aerated Lagoons. A basin In which alf solids are rnafntalnod In suspension and by which biological oxldatlon or organic matter is reduced through artificially accelerated transfer of oxygen on a flow -through basis; (3) Aeration. A process of bringing about intimate contact between air or high purity oxygen In a liquid by spraying, agitation or ditluslon;(3a) Extended Aeration. An activated sludge process utilizing a minimum hydraulic detention time of 16 hours. (4) Agriculturally managed sha. Any she on which a crop is produced, managed, and harvested (Crop includes grasses, grains, trees, etc.); (5) Air Slripping. A process by which the ammonium ]on is first converted 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 benzene, toluene, and xylene; (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; V) Carbonaceous Stage. A stage of wastewater treatment designed to achieve 'secondary' effluent limits; (8) Centrifuge. A mechanical device In which centrifugal force Is used to separate solids from liquids or to separate liquids of different densi',las; (9) Chemical Addition Systems- The addition of chemkal(s) to wastewater at an application point for purposes of Improving solids removal, pH adjustment, alkalinity control, etc.; the capability to experiment with different chemicals and different application points to achieve a specific result will be considered one system; the capability to add chemical(s) to dua! units will be rated as one system; capabilty to add a chemical at a different application points for dMorant purposes will result in the systems being rated as separate sysfams; (10) Chemical Sludge Conditioning. The addhion of a chemical compound such as llme, tannic ch$orlde, or a polymer to wet sludge to coalesce the mass prior to Its appFcation to a dewalering 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 similar operallonc. Such systama shall carry a maximum of two points regardless of pumping facilities or any other appurtenances; (12) Combined Removal of Carbonaceous BOD and Nhrogerous Removal by Nitrification- A single stage system required to achieve pemdt onluertt limits on BOD and ammonla nitrogen within the same biological reactor, (13) Dechlodrratlon. The parita! or complete reduction of residual chlorin In a liquid by any chemical or physical process; (14) Denhrtficatlon Process. The conversion of nitrate-nitrogen to nitrogen gas;