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HomeMy WebLinkAboutNC0067351_Wasteload Allocation_19910628NPDES WASTE LOAD ALLOCATION PERMIT NO.: NCO067351 PERMITTEE NAME: Haywood County Board of Education / Bethel Facility Status: Existing i�►'S�` S` Permit Status: Renewal Major Minor _q Pipe No.: 001 Design Capacity: 0.015 MGD Domestic (% of Flow): 100 % Industrial (% of Flow): Comments: Refer : Basinwide / Streamline WLA File Completed By Permits & Engineering At Front Of Subbasin RECEIVING STREAM: Bird Creek Class: C-Trout Sub -Basin: 04-03-05 Reference USGS Quad: F7NW (please attach) County: Haywood Regional Office: _ Asheville Regional Office Previous Exp. Date: 12/31/91 Treatment Plant Class: 1 Classification changes within three miles: No change within three miles. Requested by: Mack Wiggins Prepared by: Reviewed b3; l IN4cL �L Date: 5/10/91 Date: �s 9 Date: Modeler Date Rec. # S` A) 'J Z 3 5 Drainage Area (mil) S, 01 Avg. Streamflow (cfs): Y. 76 7Q10 (cfs) - 5 Winter 7Q10 (cfs) � 30Q2 (cfs) Toxicity Limits: IWC % Acute/Chronic Instream Monitoring: Parameters re"-✓ Upstream Y Location Downstream i Location -27c, Effluent Characteristics Summer Winter BOD5 (m ) F;0 NH3-N (mg/1) D.O. (mom) TSS (mg/1) 3 c? F. Col. (/100 ml) PH (SU) Comments: FACT SHEET FOR WASTELOAD ALLOCATIONS Request # 6235 RECEIVED Facility Name :BETHEL JUNIOR HIGH SCHOOL , NPDES No. :NC0067351 Water Qualityc �CCt10ft Type of Waste :100% DOMESTIC Facility Status :EXISTING J U N 1 3 1991 Permit Status :RENEWAL Receiving Stream :BIRD CREEK Stream Classification: C Asheville Regional Of M Subbasin : 040305 Asheville, North Carolina County :HAYWOOD Stream Characteristics: Regional Office :ARO USGS #EST. 0345613105 Date 9/84 Requestor :WIGGINS Drainage Area: 5.03 sq.mi. Date of Request :5/13/91 Summer 7Q10: 2.5 cfs Topo Quad :F7NW Winter 7Q10: 2.8 cfs Average Flow: 9.76 cfs 30Q2: cfs Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) FACILITY REQUESTING RENEWAL OF EXISTING PERMIT. TECH SUPPORT RECOMMENDS RENEWAL OF EXISTING LIMITS W/ FECAL COLIFORM MONITORING TO BE ADDED TO THE PERMIT. WITH THE NEW DILUTION RATIO OF 331:1, FACILITY SHOULD HAVE A FECAL LIMIT. PER SOP PROCEDURE, WILL HAVE FACILITY MONITOR EFFLUENT, UPSTREAM, AND DOWNSTREAM FECAL COLIFORM. Special Scheduled Requirements and additional comments from Reviewers: Recommended by A, Date:_6/6/91_ Reviewed by �I Date: Date:-4 Date: 6 1c Q Instream Assessm nt: Regional Sup r: Permits & Engine ring: JUL 0 6 1991 RETURN TO TECHNICAL SERVICES BY: J UN 20 1991 a -2- A ' Existincr Limits Wasteflow (MGD): BODS (mg/1): NH3N (mg/1): DO (mg/1) : TSS (mg/1): Fecal Coliform (/100 ml): pH (SU) : Oil & Grease (ing/1) : TP (mg/1) : TN (mg/1): Toxicity: Recommended Limits Wasteflow (MGD): BOD5 (mg/1) : NH3N (mg/1): DO (mg/1): TSS (mg/1): Fecal Coliform (/100 ml): pH (SU) : Oil & Grease (mg/1): TP (mg/1) : TN (mg/1) : Toxicity: CONVENTIONAL PARAMETERS Monthly Average Summer/Winter 0.015 30 NR NR 30 NR NR Monthly Average Summer/Winter 0.015 30 NR NR 30 MONITOR NR INSTREAM MONITORING REQUIRMENTS: FECAL COLIFORM Upstream: Y Location: STATE ROAD 1111 Donwstream: Y Location: HIGHWAY 276 Limits Chancres Due To: Instream Data Ammonia Toxicity Chlorine Nutrient Sensitive Waters HQW New 7Q10 flow data Special Modeling Studies New facility information Daily Maximum Daily Maximum Parameter(s) Affected Other FECAL COLIFORM MONITORING REQUIRED BECAUSE DILUTION RATIO < 331:1. RECOMMEND CHLORINATION/DECHLORINATION IF DISINFECTION IS REQUIRED. (explanation of any modifications to past modeling analysis including new flows, rates, field data, interacting discharges, etc.) CofSAtGd,r /, fS) a. oa3�J{ BETHEL JR. H.S. AMMONIA ANALYSIS 7Q10: 2.5000 cfs NH3 Effl. Conc: 5.4000 mg/l AL (1/1.8 mg/1): 1000.00 ug/l Upstream NH3 Conc.: 220.0.000 ug/l Design Flow: 0.0150 MGD Predicted NH3 Downstream: 267.73 ug/l 0.267730 mg/l NH3 Limit: 84870.96 ug/l 84.87096 mg/l AMMONIA ANALYSIS 7Q10: 2.8000 cfs NH3 Effl. Conc: 5.4000 mg/l AL (1/1.8 mg/1) : 1800.00 ug/l Upstream NH3 Conc.: 220.0000 ug/l Design Flow: 0.0150 MGD Predicted NH3 Downstream: 262.66 ug/l 0.262658 mg/l NH3 Limit: 192079.5 ug/l 192.0795 mg/l BETHEL JR. H.S. AMMONIA ANALYSIS 7Q10: 2,5000 cfs NH3 Effl. Conc: 5.4000 mg/l AL (1/1.8 mg/1) : 1000.00 ug/l Upstream NH3 Conc.: 220.0000 ug/l Design Flow: 0.0150 MGD Predicted NH3 Downstream: 267.73 ug/l 0.267730 mg/l NH3 Limit: 84870.96 ug/l 84.87096 mg/l AMMONIA ANALYSIS 7Q10: 2.8000 cfs NH3 Effl. Conc: 5.4000 mg/l AL (1/1.8 mg/1) : 1800.00 ug/l Upstream NH3 Conc.: 220.0000 ug/l Design Flow: 0.0150 MGD Predicted NH3 Downstream: 262.66 ug/l 0.262658 mg/l NH3 Limit:.192079.5 ug/l 192.0795 mg/l (WINTER) (WINTER) BETHEL JR. H.S. CHLORINE 7Q10: 2.5000 CL2 Effl. Conc: 0.0000 AL (17/19 ug/1) : 17.0000 Upstream CL2 Conc.: 0.0000 Design Flow: 0.0150 Predicted CL2 Downstream: 0.00 0 CL2 Limit: 1844.956 1.844956 ANALYSIS cfs mg/l ug/1 ug/1 MGD ug/l mg/l ug/l mg/l T6:^, PERMITS AND ENGINEERING UNIT.' WATER QUALITY SECTION DATE: June 4, 1991 NPDES STAFF REPORT AND RECOMMENDATION COUNTY Haywood i PERMIT NUMBER NC0067351 .0 PART I - GENERAL'INFORMATIOI� fl JUN © 5 1991 1. 2. 3. �'9 Facility and Address: Bethel Junior High ooAL J�'� aR� BRAE US Hwy 276 west i f NC Hwy 1 Haywood County (5�ethel Community) iLp Mailing: Haywood County Schools 304 Montgomery School j,;, Waynesville, North Carolina 28786 Date of Investigation: April 23, 1991 Repd'rt Prepared By: Max L. Haner Persons Contacted.and Telephone Number: 5. Directions to Site: Existing facility is located immediately adjacent (north.)„ -:-of US Hwy 276, approximately .6 mile west of its intersection with NC Hwy 110 south of Canton in the Bethel Community (Hay,,;ood County). 6. Discharge Point(s), List for all discharge points: Latitude: 35 deg 28 min 15 sec North 7. a Longitude: 82. deg 53 min 27 sec West a Attach a USGS map extract and :indicate treatment facility site and discharge point on map. U.S.G.S. Quad No.:;F7NW U.S.G.S. Quad Name Waynesville, N.C. Size (land available for expansion and. upgrading): 0.5 acre (est) Topography (relationship to flood :Main included): Level Not in Flood Plain Location of nearest dwelling: Greater than 500 ft (est) 10. .Receiving stream or affected surface waters: Bird Creek a. Classification: Class "C-Trout" b. River Basin and Subbasin No.: French Broad, 040305 C. Describe receiving stream features and pertinent downstream uses: Rural usage (agriculture, wildlife) PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. Type of wastewater: 100 /, Domestic Industrial a. Volume of Wastewater: 0.015 MGD (Design Capacity) b. Types and quantities of industrial wastewater: C. Prevalent toxic constituents in wastewater: d. Pretreatment Program (POTWs only): in development approved should be required not needed 2. Production rates -.(industrial discharges only) in pounds per day: a. Highest month)'., n:-.,the . part 12 months: lbs/day b. Highest year in the past 5 years: lbs/day 3. Description of industrial process (for industries only) and applicable CFR Part and Subpart: 4. Type of treatmep4,,,(;specify whether proposed or existing): WWTF consists of an extended aeration type package unit with effluent polishing chambers;..(fo.rmer Cl2 Contact Chamber/polishing) and discharge to Bird Creek. 5. Sludge handling,and disposal scheme: Sludge is wasted by contract operator (Hydrologic, Inc) from clarifier using pumping truck and disposal arrangemept,.with Town of Maggie Valley. 6. Treatment plant, classification: Less than 5 points; no rating (include rating sheet, if appropriate). II 7. SIC Codes(s): 4552 Wastewater Code(s): Primary 03 Secondary PART ?II — OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant funds (municipals onlyi? No 2. Special monitoring'requests: None 3. Additional effluent limits requests: No 4. Other: i PART IV - EVALUATION'AND RECOMMENDATIONS Recommend permit. be reissued as requested. Due to a standing request, the Town of Canton should be notified of intent to reissue permit in its watershed (Pigeon River). As the proposed flow from this facility will not increase, a request for a public meeting is not anticipated. Signature of Report Preparer ater Quality Regional Supervisor c — J Date RATING SCALE FOR CLASSIFICATION OF FACILITII_S Name of Plant:l''� Owner or Contact Person: A4yCz)009 CdUu-C. sG is Mailing Address: :?a f- k-)'� rv�t•z�y ----- ----- County: 6, 106co Telephone: 70�-- 4�5� 24-00 NPDES Permit No. NC00 Nondisc. Per. No. IssueDate.- Existing Facility ✓ Rated By: *Lk— 4:6" Reviewed (Train. & Cert.) Reg. Reviewed (Train. & Cert.) Centr ORC POINTS Industrial Pretreatment Units and/or Industrial Pretreatment Program (see -definition No. 33) QEBjC,N FLOW OF PLANT IN GPD (not applicable to non -contaminated cooling waters, sludge handling facilities for water purification plants, totally closed cycle systems (def. No. 11). and facilities consisting only of Item (4) (d) or Items (4) (d) and (11) (d)) 0 20.000.......................... 20.001 -- 50,000 ....... . ................. . 50.001 -- 100,000.......................... 100,001 -- 250.000 ......... . .............. . 250,001 -- 500,000 ......................... 500.001--1,000,000... ...................... t •000,001 -- 2.000,000 .. . .................. 2.000.001 (and up) - rate 1 point additional for each 200.000 gpd capacity up to a maximum of 30 Design Flow (gpd) PRELIMINARY UNITS (see definition no. 32) (a) Bar Screens or (h) Mechanical Screens. Slatrc Screens or COrnmiouling Devices . . .. . . . .. . . (c) Grit Removal Of (d) Mechanical or Aerated Grit Removal . . .. .. .. (e) Flow Measuring Device . o, (li Instrrnnenled Mow Measurement (;,) lnllin•r it I IUw l.�lrr.rli:.tl:ui :'f2p.11.11nr:. Gf.lvity Mechanical Ih;;sulved Au t lcrl.rlrrnr Expiration Date: New Facility Date: /F Office 'p , - al Office Grade47 ITEM POINTS (4) PRIMARY TREATMENT UNITS (a) Septic Tank (see definition no. 43) ............. . 4 (b) Imhoff Tank ...... ........... . .............. . (c) Primary Clarifiers . . .... ................... . (d) Settling Ponds or Seltfrng 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) .. . ..... ......................... .. 1 (5) SECONDARY TREATMENT UNITS 2 (a) Carbonaceous Stage 3 (i)Aeration - High Purity Oxygen System ..... 4 Diffused Air System ...... _ . .. . 5 M;ech2nical Air System (fixed, 8 floalina or rotor) .......... . 10 Separate Sludge Reaeration (ir) Tnckl:ng Filler High Rate ................... Standard Rate .............. Packed Tower .............. (i i i) Biological Aerated Filter or Aerated _ Biological Filter ................... . . . (iv) Aerated Lagoons .............. ...... (v) Rotating Biological Contactors ...... ... . (vi) Sand Filters -intermittent biological . . . . . 1 recirculating biological (vn) Slabrlization Lagoons . . . . .. . . . . (vrn)Clarifier . ... .. . . . .... . 2 (ix) Singe stage syslern for combined 1 carbonaceous ien-ovaf of BOO and nitrogenous removal by nitrification 2 / (see def. No 12) (Points for this item t ✓ have to be u1 addition to items (5) (a) (i) through (5) (a) (vnr) . . . (x) Nutrient addilions to enhance BOO r;'n,("val 115101 gical C.01ore (-Super Rugs--) adcfrtuln ' I..) L'nhanct` COmpokind removal 3 8 A 2 5 5 2 20 10 ✓ 8 3 7 5 5 10 10 10 2 3 5 5 8 5 IA- At y •d folol) '­111)doe V It '(.k Imq I Ili I! I -I,: I I It I I r of I ill('., Prefs 1-61')h oriill:31 dew.liering (j-_'­:(!1' 1 0 ""Iandard Hzile L: (I 1,ower At . . . . . . (lit) Biological Aerated Filter or Aeraled (a) Layoow,, (b) (and Biological Filter . . . . ............ . . . . ... .. 1.0. Application (SU(jaCe and subsuflace) .. (iv) Relating Biological Contactors .. . .... 10 (see definition 22a) . .. (v) Sand Filter- -where the facility holds the land app. permit 1 0 intermillent, biologicat"- 2 -by contracting to a land application ope(alo( who recirculating biological 3 holds the land'application permit . . . . . . . . . . . . 2 (vi) Clarifier ...... . .................... 5 . . . -land application of sludge by a contractor who does . not hold the permit for the wastewater treatment TERTIARY OR ADVANCED TREATMENT UNIT facility where the sludge is generated . . . . 10 (a) Activated Carbons Beds . . . . (c) Landfilled (burial) ........... ................. without carbon regeneration DISINFECTION with carbon regeneration 5 (a) Chlorination 5 ................... (b) Powdered or Granular Activated Carbon Feed 1 5 (b) Dechlorination 5 without carbon regeneration ............ 5 (c) Ozone 5 with carbon regeneration (c) Air 1 5 (d) Radiation ........ ...... . ...... (10) CHEMICAL AD DITION SYSTEM (S) 5 Stripping - . . . _ . . . . . . 5 (See definition No. 9) ' (not applicable to chemical (d) Denitrification Process (separate process) 10 additions rated as item (3) 0). (5) (a) (xi). (e) Efectrodialysis 5 (6) (a), (6) (b). (7) (b). (7) (e). (a). (f) Foam Separation ...• (9) (b). or (9 ) (c) 5 points each: List: (g) Ion Exchange:.......:.5 .................. . . . . . . 5 (h) Land Application of Treated Effluent . . . . . . 5 (see definition no. 22b) (not applicable for . . . . . . 5 sand, gravel, stone and other similar mining 1) MISCELLANEOUS UNITS . . . . . . . 3 operations) -.(i) on agriculturally managed sites (See def. . (2) Holding Ponds. Holding Tanks or Senlino Ponds - No.4)-..- ........................ i Or Organic or Toxic Materials including -asles by high rate infiltration on non -agriculturally 10 from mmif;g operations containing nil-ogen and/or PhOSPI"Ot"Ous managed sites (includes rotary distributors compounds in amounts significantly - greater thanis and similar fixed nozzle systems) . . . . . . . . . 4 common for domestic wastewater ...... (b) Effluen! Flow . by subsurface disposal (includes low pressure Equalization not applicable 10 storage uasins � hich inherent, Pipe systems and gravity systems except at are In land aPPI,Cation systems). (c) Stage Discharge 2 plants consisting of septic lank and nitrifica- (not applicable to storage basins inherent in land lion lines only) ............................. application systems... 5 Microscfeens ..... ... .................... 4 (d) Pumps... ........ 3 Phosphorus Removal by Biological. Processes 5 (e) Stand -By Power Supply ........... (See del No 263) (1) Thermal P011ullon Conlrnf (-)P­-� 3 .................... ... 20 �k) Polishing Ponds without aeration . . . . . . 2 with aeration .. . . . . 5 P05( Aeration - cascade 0 diffused or mechanical . . . 5 11)) Reverse osmosis ... . .................. 11) Sand or Mixed -Media Fillers - low rate .. . . . . . . . . high rate ........ o) Treatment processes for removal of metal or Cyanide . ...... p) treatment processes for removal of toxic materials other than metal or cyanide . . - - - I-W)GI* I'AliATIVIENT fJ'geSfQI1 fink Heated Aerobic Unhealed '(Slab'liz zillrifl (010'01,cal or thermal) Sludge Otyino Beds Gravity VICULVII Ass(SILd of 111C.11n;I'l) Ail qis ',1010L)") 5 2 5 15 15 TOTAL POINT`; Z:9 CLASSIFICATION Class I Class 11 25 Points Class 111 26 50 Points Class Jv ')1 65 Points 66 UP Points do not lool pilills. Inclusive. 1 0 require 'C facilities I opc.,,Jlof C 1,1 SS 11 ica lion of all other 5 Comparable grade OfWralo( in responsible 3. charge Facilities having aclivaled sludge Pfol-.Css a Minfnlo'n will be assigned of (;I,? Ss 11 111•.otne-iij liu I ! [':(nrjvaI ()I met; 1 of Class !I III of Cli,.;--,