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Home My WebLink AboutNC0082384_Wasteload Allocation_19920629NPDES WASTE LOAD ALLOCATION PERMIT NO.: NCO082384 PERMITTEE NAME: County of Stokes FACILITY NAME: Stokes County WWTP Facility Status: Proposed Permit Status: New Major Pipe No.: 001 Design Capacity: Minor -1 0.10 MGD Domestic (% of Flow): Industrial (% of Flow): 100 % Comments: No SIU's. requested PIRF anyway. Will copy PIRF to modeler. RECEIVING STREAM: the Dan River Class: WS-III Sub -Basin: 03-02-01 Reference USGS Quad: Danbury (please attach) Cnnntv- Stokes Regional Office: Winston-Salem Regional Office Previous Exp. Date: 00/00/00 Treatment Plant Class: Classification changes within three miles: No chanee Modeler Date Rec. I # Z Sz 'loon ylIlu Drainage Area (miz) Z ]� Avg. Streamflow (cfs): 33¢ 7Q10 (cfs) .55 Winter 7Q10 (cfs) 30Q2 (cfs) 1 I S Toxicity Limits: IWC Instream Monitoring: Refer : Basinwide / Streaml Completed By Permits & E At Front Of Subba Requested by: Charles Lowe Date: 6/26/92 Prepared by:Date: B 2. Reviewed by: 6z Date: 5 a -ho D % Acute/Chronic Parameters Upstream Location Downstream Location Effluent Characteristics Summer Winter BOD5 (mg/1) 30 30 NH3-N (mg/1) D.O. (mg/1) TSS (mg/1) 30 F. Col. (/100 ml) Zo0 Zoo pH (SU) . Aowpu L (JLae e 0 't UZB ne WLA File ngineering sin Comments: P�comAtwt) CgLoo24tJ 17lotj/WUILoe.tNRnoN atz Uv Tx S(4FEGrtenl O I p �� dx ° v ti IF \� v� - USGS QUADRANGLE "DANBURY 2000' 0 1000' 2000' 4000' DISCHARGE PERMIT APPLICATION LOCATION MAP ,- = 2000' HOBBS. UPCHURCH k ASSOCIATES, P.A. 1—MAY-1992 CONTOUR IITERVAL 20 FEET w ca>ornnma NM 1929 SOUnEERN PINES, NORTH CAROfINA 289E5 IM"1I.Yr3i3i:7:T.91M�irfi7:`i7:`i7C�.M I�YC�7► Request# 7MO,ElVED Facility Name: Stokes Co. WWTP MC, Dept. of ENNR NPDES No.: NC0082384 Type of Waste: Domestic - 10051 'E , U L 2 8 1992 Facility Status: sys ttg nQ Permit Status: Ranowal KIC� Winston -Salim Receiving Stream: Dan River Regional (ifflC@ Stream Classification: WS-III Subbasin: 030201 County: Stokes Stream Characteristic: Regional Office: WSRO USGS # HA10 eq'ns Requestor: C. Lowe Date: Date of Request: 6/26/92 Drainage Area (mi2): 276 Topo Quad: B 18NW Summer 7Q10 (cfs): 55 Winter 7Q10 (cfs): 79 Average Flow (cfs): 334 30Q2 (cfs): 115 IWC (%): 0.28 Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) Stokes County proposes to build a plant to discharge to the Dan River. This plant will tie -on several small discharges when built. No industrial dischargers are expected to tie -on to the facility. Tech Support recommends chlorination/dechlorination or UV disinfection. Special Sc�edule Requirements and additional comments from Reviewers: Recommended by: Date: to 2_ Reviewed by / InstreamAssessment: 0/),,U/��JQn2AdL,99 Date: Regional Supervisor: _ �"l `� 'Y ` Date: Permits & Engineering: Date: & ZO RETURN TO TECHNICAL SERVICES BY: AUG 1 9 1992 2 CONVENTIONAL PARAMETERS Recommended Limi Monthly Average Summer Winter WQ or EL Wasteflow (MGD): 0.1 0.1 BOD5 (mg/1): 30 30 NH3N (mg/1): DO (mg/1): TSS (mg/1): 30 30 Fecal Col. V100 ml): 200 200 pH (SU): 6-9 6-9 Residual Chlorine (µg/1): 28 28 Oil & Grease (mg/1): TP (mg/1): TN (mg/1): Parameter(s) are water quality limited. For some parameters, the available load capacity of the immediate receiving water will be consumed. This may affect future water quality based effluent limitations for additional dischargers within this portion of the watershed. K X No parameters are water quality limited, but this discharge may affect future allocations. Wastelad sent to EPA? (Major) N (Y or N) (If yes, then attach schematic, toxics spreadsheet, copy of model, or, if not modeled, then old assumptions that were made, and description of how it fits into basinwide plan) Additional Information attached? N (Y or N) If yes, explain with attachments. t. oA Sl� - ' A l o -r-q.yjs --�A O l�TO ?J�OD Sg - J�p- - � Z - VA-- 27� -- -- - -- - Qa,r4 3��4 cTs ? 4r y � SI i - - --- J - - - -- -- - --- - — -- 3 -Ices -- - ---- - T r Z D z --- - r ii /l V - --' - �l - %-- - �'� 4 T4r!5 FACT t-rry PLANS -7-. 7-,E D� { :• r�l 4- N coo 74 �� co o7�4-bps W II�l3P i- - fIC�LI-1-Y ?Utl9 ksQ - ('OAAL_ r!�'? S - " r'WKov5 J� y� - - - -- �� - - - - - - - ---- -- - - __ �Q105 ' .D�.l S"✓ _/�t�r�- - - - ' _ off. - 44 Fo w S _ o T u11 Lr, u5 T/44E5 -- - I' f iNf}srV, IS FKOP055-0_A I'i r 7A -S &/f I IT/ . - --- - - - r • ; Sao Co • s i i?crF = 0, to Mc,� D3o2oi - - --- -------------- ?Z 6 ?n, z ,---- - ----- - ---- -- Avg, = 33 ins-` $4- ----71��s - --- ---- -- -- - -- - --- — + -- --- ? E - - -- /J St Nr , OJT - - - I �Py{ TobXYfj5jkJ — --- - - -- — -A. l A U: ConJ�J�G==f` 1"0ro:{cj Coy - - - -- - FPS - - ---- - --- - --- -- - - ------ - -- - ;I i - - - --- - ---- - - - - - �� - ' _ - s tem o� N `Z14 +s, ;i, SUMMER QEFF=0.1 MGD, BOD5=30 MG/L MODEL RESULTS Discharger : STOKES CO WWTP Receiving Stream : DAN RIVER ---------------------------------------------------------------------- The End D.O. is 7.69 mg/l. The End CBOD is 2.04 mg/l. The End NBOD -----------=---------------------------------------------------------- is 1.19 mg/l. WLA WLA WLA DO Min CBOD NBOD DO Waste Flow (mg/ 1) ------ Milepoint Reach # ---------------- (mg/ 1) ---- (mg/ 1) ---- (mg/ 1) (mgd) -- ---------- Segment 1 7.42 0.00 1 Reach 1 45.00 90.00 0.00 0.10000 5mo FS = 5�d Ins ,Uo-96,e3� POI)JT r'o �cp"t 50fjAt,5 Cp-EC-(c *** MODEL SUMMARY DATA *** . Discharger : STOKES CO WWTP Subbasin 030201 Receiving Stream : DAN RIVER Stream Class: WS-III Summer 7Q10 : 55.0 Winter 7Q10 : 79.0 Design Temperature: 25.0 ILENGTHI SLOPEI VELOCITY I DEPTHI Kd I Kd I Ka I Ka I KN I I mile I ft/mil fps I ft Idesignl @20;1 Idesignl @20;k Idesignl -------------------------------------------------------------------------------- I I I I I I I I I I Segment 1 1 1.201 8.301 0.607 1 2.46 1 0.32 1 0.25 14.94 1 4.431 0.44 1 Reach 1 1 1 1 1 1 1 1 1 1 1 -------------------------------------------------------------------------------- 1 Flow I CBOD cfs I mg/1 Segment 1 Reach 1 Waste 1 0.155 1 45.000 Headwatersl 55.000 1 2.000 Tributary 1 0.000 1 2.000 * Runoff 1 0.000 1 2.000 1 NBOD ( D.O. I I mg/1 I mg/1 I 190.000 I 0.000 I 1.000 I 7.440 1.000 I 7.440 I 1.000 I 7.440 * Runoff flow is in cfs/mile y/ SUMMER ,- QEFF=0.1 MGD, BOD5=30 MG/L . ( Seg # I Reach # I Seg Mi I D.O. I CBOD ( NBOD I Flow • 1 1 0.00 7.42 2.12 1.25 55.16 1 1 0.12 7.45 2.11 1.24 55.16 1 1 0.24 7.49 2.10 1.24 55.16 1 1 0.36 7.52 2.10 1.23 55.16 1 1 0.48 7.55 2.09 1.22 55.16 1 1 0.60 7.57 2.08 1.22 55.16 1 1 0.72 7.60 2.07 1.21 55.16 1 1 0.84 7.62 2.07 1.20 55.16 1 1 0.96 7.65 2.06 1.20 55.16 1 1 1.08 7.67 2.05 1.19 55.16 1 1 1.20 7.69 2.04 1.19 55.16 I Seg # I Reach # I Seg Mi I D.O. I CBOD I NBOD I Flow I 0.� COO .> _ NPDES PRETR)EATMEW INFORMATION REQU:pST FORM 1 FACILITY NAME: 4 �)o NPDES NO. NC00 r � r REQUESTER: DATE: r // RATION: I I r 1 1 ( This facility has no SIUs and should not have pretreatment language. This facility should and/or is developing a pretreatment program. Please include the following conditions: r 1 y/ f 1� 1 1 �� Program Development ' hale I due JUN 29 1992 ase II due Additional Conditions ' WHNiCAL Rr�8KAWy is currently implementin a (attached) i g pretreatment program, , Please include the following conditions: Program Implementation Additional Conditions ( attached) r I r r r SIGNIFICAN`I` INDUSTRIAL USERS' (SIUs) CONTRIBUTIONS SIU FTAW - TOTAL: M® 1 r r - CONPOSITION : MGDr -METAL FINISHING: MGfl OTHER: : NK-D 1 r r = M® 1 I r = MGD , r r � MGD r r r 1 HEADWORKS REVIEW r rPASS P THROUGH DAILY LOAD IN LBS/DAY ACTUAL ' r r r 'AIZDOMESTIC PERMffTTED INDUSTRIAL % REMOVAL Cd Cr r 1 Cu r r Ni Pb r 1 I Zn r r CN r Phenol r I Other 1 I � 1 r r r I I I REC.'E IVED : / / REVIEWED BY:RMURNM . 1 r FROM COLLECTION SYSTEM RETURN ACTIVATED SLUDGE SCREENING INFLUENT FLOW METERING CLz SO p EFFLUENT FLOW METERING AERATION RsERTrLING, AERATION RETURN ACTIVATED SLUDGE WASTE ACTIVATED SLUDGE SLUDGE HOLDING STOKES-DANBURY 0.1 MGD WASTEWATER TREATMENT FACILITY PROCESS SCHEMATIC ro EXTENDED AERATION -ACTIVATED SLUDGE HOBBS, UPCHURCH & ASSOCIATES, P.A. CONSULTING ENGINEERS r SOUTHERN PINES, NORTH CAROLINA 28387