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HomeMy WebLinkAboutWQ0006100_Final Permit_19920511`t'!4rr State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor William W. Cobey, Jr., Secretary May 11, 1992 Mr. Bob Raines, Associate Superintendent Nash County Board of Education 930 Eastern Avenue Nashville, North Carolina 27856 George T. Everett, Ph.D Director Subject: Permit No. WQ0006100 Nash County Board of Education Cooper's Elementary School Subsurface Disposal System Nash County Dear Mr. Raines: In accordance with your application received January 27, 1992, we are forwarding herewith Permit No. WQ0006100, dated May 11, 1992, to Nash County Board of Education for the construction and operation of a 10,380 GPD subsurface wastewater disposal system - This permit shall be effective from the date of issuance until April 30, 1997, and shall be subject to the conditions and limitations as specified therein. Please pay particular attention to the monitoring requirements in this permit. Failure to establish an adequate system for collecting and maintaining the required operational information will result in future compliance problems. If any parts, requirements, or limitations contained in this permit are unacceptable to you, you have the right to request an adjudicatory hearing upon written request within 30 days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. Regional Offices Asheville Fayetteville Mooresville Raleigh Washington Wilmington Winston-Salem 704/251-6208 919/486-1541 704/663-1699 919/733-2314 919/946-6481 919/395-3900 919/761-2351 Pollution Prevention Pays P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 An Equal Opportunity Affirmative Action Employer One set of approved plans and specifications is being forwarded to you. If you need additional information concerning this matter, please contact Ms. Angela Y. Griffin at 9191733-5083. cc: Nash County Health Department Raleigh Regional Office, Water Quality Raleigh Regional Office, Groundwater Groundwater Section, Jack Floyd Training and Certification Unit Ellinwood Design Associates, Ltd. Facilities Assessment Unit cerely, George T. erett k NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION DEPARTMENT OF ENVIRONMENT, HEALTH AND NATURAL RESOURCES RALEIGH SUBSURFACE DISPOSAL SYSTEM PERMIT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Nash County Board of Education Nash County FOR THE construction and operation of a 10,380 GPD subsurface wastewater disposal system consisting of a 8,000 gallon septic tank, a 4,000 gallon septic tank, a 5,000 gallon pump tank, a 5,000 emergency storage tank, each equipped with duplex 120 GPM pumps with audible and visual high water alarms and controls, two (2) pressure manifolds with approximately 8,640 linear feet of flinch force main to serve Cooper's Elementary School with no discharge of wastes to the surface waters, pursuant to the application received January 27, 1992 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 April 30, 1997, and shall be subject to the following specified conditions and limitations: ■ • I► 0 Xvii0 w\ r 1. Upon completion of construction and prior to operation of this permitted facility, a certification must be received from a professional engineer certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications. Mail the Certification to the Permits and Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535. 2. The Raleigh Regional Office, phone no. (919) 571-4700, shall be notified at least forty- eight (48) hours in advance of backfilling of the installed facilities so that an in-place inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday, excluding State Holidays. 3. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as construction of additional or replacement wastewater treatment or disposal facilities. 4. The issuance of this permit shall not relieve the Permittee of the responsibility for damages to surface or groundwaters resulting from the operation of this facility. 5. This permit shall become voidable if the soils fail to adequately absorb the wastes and may be rescinded unless the facilities are installed, maintained, and operated in a mariner which will protect the assigned water quality standards of the surface waters and ground. waters. 6. Adequate measures shall be taken to divert stormwater from the disposal area and prevent wastewater runoff from the subsurface disposal field. 7. The sludge generated from these treatment facilities must be disposed of in accordance with General Statute 143-215.1 and in a manner approved by the North Carolina Division of Environmental Management. 8. A usable reserve area shall be maintained for wastewater disposal. The reserve area shall have the capability of accommodating the average daily flow of the facility being served without exceeding the loading rates of the reserve area while meeting all required buffer requirements. 9. Diversion or bypassing of the untreated wastewater from the treatment facilities is prohibited. 10. The following buffers shall be maintained: a) 100 feet between disposal area and any public or private water supply including wells b) 100 feet between disposal area and "SA and SB" classified surface waters C) 50 feet between disposal area and any stream, lake, river or natural drainageway d) 50 feet between disposal area and property lines e) 10 feet between disposal area and surface water interceptor drains or diversions (upslope) f) 25 feet between disposal area and surface water interceptor drains or diversions (downslope) and groundwater drainage systems. 11. A leakage test shall be performed on the septic tank and dosing tank to insure that any exfiltration occurs at a rate which does not exceed twenty (20) gallons per twenty-four (24) hour per 1,000 gallons of tank capacity. The engineer's certification will serve as proof of compliance with this condition. 1. The facilities shall be properly maintained and operated at all times. 2. Upon classification of the facility by the Certification Commission, 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 Certification Commission. The Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must visit each Class I facility at least weekly and each Class 11, lII, 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 Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must submit a letter to the Certification Commission which designates the operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete. 2 3. The application rates to the disposal field shall not exceed 0.40 GPDfft2. 4. The facilities shall be effectively maintained and operated as a non -discharge system to prevent the discharge of any wastewater resulting from the operation of this facility. 5. No traffic or equipment shall be allowed on the disposal area except while installation . occurs or while normal maintenance is being performed. 6. A suitable cover shall be maintained on the disposal area and the disposal area shall be routinely mowed. The clippings shall be periodically removed to prevent the build-up of thatch. 7. The pressure heads on the two (2) manifolds shall be inspected periodically to ensure even distribution to all of the force main lines. [i &UILIXM�Hl Oki 11211252fim0 11111431312400 1. Any monitoring deemed necessary by the Division of Environmental Management to insure surface and ground water protection will be established and an acceptable sampling reporting schedule shall be followed. 2. The nitrification lines shall be maintained as necessary (including purging of the lines) in order to ensure that they remain free of obstructing materials. Adequate records showing all maintenance shall be maintained by the Permittee. 3. 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. The Permittee shall report by telephone to the Raleigh Regional Office, telephone no. (919) 571-4700, as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the wastewater treatment facility which results in the treatment of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a basin or tank; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. C. Any failure of a pumping station, sewer line, or treatment facility resulting in a by- pass of all or any portion of the influent to such station or facility. d. Any time that self-monitoring information indicates that the facility has gone out of compliance with its permit limitations. Persons reporting such occurrences by telephone shall also file a written report in letter form within 15 days following first knowledge of the occurrence. This report must outline the actions taken or proposed to be taken to ensure that the problem does not recur. 3 I�i�LT0 Nei IIVAIV 9 Do 1116.3 01910I: ►� ► 1. Any groundwater quality monitoring as deemed necessary by the Division of Environmental Management shall be provided. 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 Ieast the date and time of inspection, observations made, and any maintenance, repairs, or corrective actions taken by the Permittee. This log of inspections shall be maintained by the Permittee for a period of three years from the date of the inspection and shall be made available upon request to the Division of Environmental Management or other permitting authority. 3. Any duly authorized officer, employee, or representative of the Division of Environmental Management may, upon presentation of credentials, enter and inspect any property, premises or place on or related to the disposal site and facility at any reasonable time for the purpose of determining compliance with this permit; may inspect or copy any records that must be kept under the terms and conditions of this permit; or may obtain samples of groundwater, surface water, or leachate. i I►1 o► 1. This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans, specifications and other supporting data. 2. This permit is effective only with respect to the nature and volume of wastes described in the application and other supporting data 3. This permit is not transferable. In the event there is desire for the facilities to change ownership, or there is a name change of the Permittee, a formal permit request must be submitted to the Division of Environmental Management accompanied by an application fee, documentation from the parties involved, and other supporting materials as may be appropriate. The approval of this request will be considered on its merits and may or may not be approved. 4. A set of approved plans and specifications for the subject project must be retained by the applicant for the life of the project.. 5. The annual administering and compliance fee must be paid by the Permittee within thirty (30) days after being billed by the Division. Failure to pay the fee accordingly may cause the Division to initiate action to revoke this permit as specified by 15 NCAC 2H .0205 (c)(4). 4 6. 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 143-215.6A to 143-215.6C. 7. The subject wastewater treatment and disposal facilities shall be connected to an operational publicly owned wastewater collection system within 180 days of its availability to the subject facilities, if the subject wastewater treatment or disposal facilities are in noncompliance with the terms and conditions of this non -discharge permit or the governing statutes or regulations. Prior to the initiation of these connection activities, appropriate approval must be received from this Division. 8. 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. 9. The Permittee, at Ieast 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 11th day of May, 1992 CAROLINA Geese T. Everett, pirectc Division of Environmental By Authority o the Envirc Permit No. WQ0006100 AL MANAGEMENT COMMISSION Management Commission Permit No. WQ0006100 May 11, 1992 Engineer's Certification 1, , as a duly registered Professional Engineer in the State of North Carolina, having been authorized to observe (periodically, weekly, full time) the construction of the project, Project Name Location for the Permittee hereby state that, to the best of my abilities, due care and diligence was used in the observation of the construction such that the construction was observed to be built within substantial compliance and intent of the approved plans and specifications. Signature Registration No. Date r , .; �_�^�.__�'• .%z -- ��� z "+C. :-ice=,;1111 "•' �:= y - �- . A * ��� .� �•,` y1&3 ,� 1156 0 �1 � � � `d-t� 1 •`�. _ i4 :`A ` x215 __ �._..-" � / BR 160 M / '3 :mss _' t�/�• j� C %fem / Sandpitx cem ER 136 l • P • Sandy!. Cross. 166Cem '+_x IT • :ems • 188, + ' , f M1: c - - m -- ✓ / _ _ c" r L L Ceras is 195 e} •• r -\ �� - ..- _ -: cem :'•(;em` : Tr5'lars �1, ` �� ` n � G$4s �,; p„pd _ •-� ` Gem „ _ _ G• s "._'. Fieid. ,• i P as r 53320 •I' r. 1' II / 2 h T5 `. •+ Oak Iwvti Ch 1131 1132 57'30" 1 1134 (WINSTEAD CROSSROADS) WIUSTEAA CROSSROADS (N.C. 9712-6 ?1 uss JV SW 1 Survey WILSON (N.C4219A' 1 SCALE 1:24000 * I 2 0 1000 0 7000 2000 3000 4000 5000 6000 GH 1 KI1.01 late 6• X07 MILS 1143'CONTOUR INTERVAL 10 FEET 31 MILS NATIONAL GEODETIC VERTICAL DATUM OF 1929 where Z7 Ala)niche l3TM GRID AND 1974 MAGNETIC NORTH DECLINATION AT CENTER OF SHEET THIS MAP COMPLIES WITH NATIONAL MAP ACCURACY STANDARDS FOR SALE BY U. S. GEOLOGICAL SURVEY, RESTON, VIRGINIA 22092 A FOLDER DESCRIB 4G TOPOGRAPHIC MAPS AND SYMBOLS IS AVAILABLE ON REQE Q� RATING SCALE FOR CLASSIFICATION OF FACILITIES Name of Plant: Ctc Pops- E� M c S� aL Owner or Contact Person: Bob �,41J]�S — 5�dc • Soc ti�cN;,�,U� Mailing Address: 436 cl-s7f'W !>'u- ---- — A5#V1Li & NGT County: SA/ Telephone: 7e�2 NPDES Permit No. NCOD Nondisc. Per. No. Gy!P 4006f60 Issue Date: Expiation Date: Existing Facility _ Neva Facility ✓ Rated By: j 14AFf:CP, Date: 3 t r Reviewed (Train. & ' Cert.) Reg. OffiW Reviewed (Train. & Cert.) Central Office ORC Grade Plant Class: (circle one) II 111 IV T ofal Points 17— ITEM Z ITEM POINTS (1) industrial Pretreatment Units and/or Industrial Pretreatment Program (see definition No. 33) 4 (2) �;I N FLOW OF PLANT IN GPD (not applicable to non -con laminated cooling waters, sludge handling facilities for water purification plants, totally closed cycle systems (dei. No. 11), and facilities consisling only of Item (4) (d) or Items (4) (d) and (11) (d}L 0 20.000 .................. . . ...... 20,001 -- 50,000 .......................... 50,001 -- 100,OD0.......................... 3 100,001 250,000 .......................... 4 250,001 - 500,000............ .............. 5 500,001 --1,000,000 .......................... 8 1,000,001 -- 2,000.000 ........................ 10 2,000,001 (arid up) - rate 1 point additional for each 200,000 gpd capacity up to a maximum of 3Q Design Flow (gpd) : -,_ 1U MO G �� (3) PRELIMINARY UNITS (see definition no. 32) (a) Bar Screens ................................ 1 or (b) Mechanical Screens, Sialic Screens or Comminuting Devices ........... ............. 2 (c) Grit Removal ........ ....................... 1 or (d) Mechanical or Aerated Grit Removal ........... 2 (e) Flow Measuring Device ....................... 1 or (I} instrumented Flow Measurement .............. 2 (g] Preaeralion ........................... . .... 2 (h) Influerit Flow -Equalization ................... 2 (i) Grease or Oil Separators - Gravity .......... 2 Mechanical .......... 3 Dissolved Air Flotation. 8 i]) Prechlorination .............................. 5 (4) }PRIMARY TREATMENT UNITS p� (a) Septic Tank (see definition no. 43) .............. �✓ (b) Imhoff Tank ................................... 5 (c) Primary Clarifiers ............................. 5 (d) Settling Ponds or Settling Tanks for Inorganic Non-loxic Materials {sludge handling facilities for water purification plants, sand, gravel. stone, and other mining operations except recreational activities such' as gem or gold mining) ...................................... 2 (5) SECONDARY TREATMENT UNITS (a) Carbonaceous Stage (i)Aeralion - High Purity Oxygen System ..... Diffused Air System ........... Mechanical Air System (fixed, floating or rotor) ........ . .... . Separate Sludge Reaeration .... . (h) Tric'K:ing Filter High Rate ................... _ Standard Rate ...... . .... . .. . Packed Tower ............... (iii) Biological Aerated f=ilter or Aerated Siolocical Filter ................ . . ... . (iv) Aerated Lagoons .................. . .. . (v) Rotating Biological Conlaclors .......... (vi) Sand 1=ilters- inlermitlent biological .... . recirculating biological .. .. _ (vii) Stabilization Lagoons ................... (viii)Clarifies ........................ . .... . (ix) Single stage system for combined carbonaceous removal of BOD and nitrogenous removal by nitrification (see def. No. 12) (Points for this item have to be in addition to items (5) (a) (i) through (5) (a) (viii) ................. (x) Nutrient additions to enhance SOD removal ............................... (xi) Biological Culture ('Super Bugs') addition to enhance organic compound removal .... . (b) Nitrogenous Stage (i) Aeration - High Purity Oxygen System ... . Diffused Air System ........ _ . . Mechanical Air System (fixed, floating, or rotor) ...... ..... . Separate Sludge Reaeration .... . (ii) Trickling Filler - High Rale .............. Standard Rale ........... . Packed Tower ............ (iii) Biological Aerated Filter or Aerated Biological Filler _ ...................... . (iv) RolaVng Biological Contactors ........... . (v) Sand Filter - intermittent biological ....... . recirculating biological ....... . (vi) Clarifier ............................... (6) TERTIARY OR ADVANCED TREATMENT UNIT (10) -CHEMICAL ADDITION SYSTEM (S) (See definition No. 9) {a} Activated Carbons Beds - (not applicable to chemical additions rated as item wilhout carbon regeneration .. . ........ . .... . 5 (3) (i), (5) (a) (xi), (6) (a), (5) (b), (7) (b), (7) (e), with carbon regeneration .................... 15 (g) (a), (9) (b), or {9) (c) 5 points each: List-, (b) Powdered or Granular Activated Carbon Feed - . . . . . 5 without carbon regeneration ................. 5 5 w€th carbon regeneration ... _ .,.............. 15 5 �c) Air Stripping .......................... . ... 5 5 (d) Denitrification Process (separate process) . .... 1 0 (e) Electrodialysis .. . . . ......... ................ 5 (11) MISCELLANEOUS UNITS (f) Foam Separation ....... . ............... . ..... 5 (a) Holding Ponds, Holding Tanks or SetlPng Ponds (g) Ion Exchange_ . .............................. 5 for Organic or Toxic Materials including wastes (h) Land Application of Treated ElRuent . from mining operations containing nitrogen andlor (see definition no. 22b) (not applicable for phosphorous compounds in amounts significantly sand, gravel, stone and other similar mining greater than is common for domestic wastewater .......... 4 operations) (b) Effluent Flow i=qualizalion (not applicable to storage (i) on agricollurally managed sites (See def. basins which are inherent in land application systems). 2 No. 4)................................... 10 (c) Slage Discharge (not applicable to storage basins (ii) by high rale infiltration on non-agriculturally inherent in fand application systems ...................................... managed sites (includes rotary distributors (d) Pumps................. ................ ............. ............................ - ................ ...... 3 and similar fixed nozzle systems) ........... 4 (e) Stand-By Power Supply................................................................. 3 (iii) by subsurface disposal (includes low pressure (f) Thermal Pallulio- Control Device..................... pipe systems and gravity systems except at plants consisting of septic tank and nilriiica- tion fines only) ....... . .................. . .. O TOTAL POINTS 4L- (i)(i) Microscreens.................................. a� (j} Phosphorus Remo-rat by Biological Processes CLASSIFICATION (See def. No. 26) .......... .................. 20 (k) Polishing Ponds - without aeration ... _ _ .. 2 Class I........................................................... 5 25 Points with aeration .......... 5 Class 11 ................................ .................. ..... 26- 50 Points (I) Post Aeration - cascade .............. 0 Class tlf..... ..-....................... ....................... . 51- 65 Points diffused or mechanical ... 5 Class 1V........................................................ 66- Up Points (m) Reverse Osmosis ....... . ....................... 5 (n) Sand or Mixed-Media Filters - low rate ........... 2 Facilities having a rating of one through four points, inclusive, high rale .......... 5 do not require a certified operator. Classification of all other (o) Treatment processes for removal of metal or facilities requires a comparable grade operator in responsible cyanide.................................... 15 charge. (p) Treatment processes for removal of toxic materials other than metal or cyanide ......... i 5 Facilities having an activated sludge process wit! be assigned a minimum classification cf Class 11. i SLUDGE TREATMENT Facilities having treatment processes for the removal of meta! (a) Sludge Digestion Tank - Heated ............... 10 or cyanide will be assignef a minimum classification of Class II. Aerobic.. .... . , - . . .... 5 Unheated...... ....... 3 Facilities having treatment processes for the biological removal (b) Sludge Stabilization (chemical or thermal) .... ... 5 of phosphorus will be assigned a minimum classification of Class (c) Sludge Drying Beds - Gravity................. 2 W. Vacuum Assisted ....... 5 (d) Sfudge Elutriation .... . ........................ 5 In-plant processes and related control equipment which are an (e) Sludge Conditioner (chemical or thermal) .. _ ..... 5 integral part of industrial production shall not be considered waste (f) Sludge Thickener (gravity) ...................... 5 treatment. Likewise, discharges of wastewater from residences (g) Dissolved Air Flotation Unit having a design flow of 1,000 gpd or fess, shall not be subject to (not applicable to a unit rales as (3) (i) ......... 3 rating. (h) Sludge Gas Utilization (including gas storage) .... 2 (i) Sludge Holding Tank - Aerated................ 5 ADDITIONAL_ COMMEND Non-aerated ............ 2 (j) Sludge Incinerator - (not including activated carbon regeneration) ..... 10 (k) Vacuum Filler, Centrifuge or Filter Press or other similar dewatering devices .................... 10 (g) SLUDGE DISPOSAL (including incinerated ash) (a) Lagoons........................................ 2 (b) Land Application (surface and subsurface) (see definition 22a) -where the facility holds the land app. permit .. 10 -by contracting to a land application operator who holds the land application permit ........ . ...... -land application of sludge by a contractor who does not hold the permit for the wastewater treatment facility where the sludge is generated ......... 10 (c) Landfilled (burial) ... . .... ..................... 5 (9) DISINFECTION 5 (a) Chlorination ................. . ........... (b) Dechlorination _ .... _ . _ ... .......... 5 (c) Ozone .............................. 5 (d) Radiation .......................... 5