The URL can be used to link to this page

Home My WebLink AboutNC0036684_Wasteload Allocation_19910808_-{ NPDES WASTE LOAD ALLOCATION PERMIT NO.: NC0036684 PERMITTEE NAME: Utilities, Incorporated FACILITY NAME: Bent Creek WWTP Facility Status: Existing Permit Status: Renewal Major Pipe No.: 001 Design Capacity: Minor -4 0.100 MOD Domestic (% of Flow): Industrial (% of Flow): Comments: 100 % refer: Basinwide / Streamline WLA file at front of subbasin RECEIVING STREAM:wesley Creek Class: C Sub -Basin: 04-03-02 Reference USGS Quad: E 8 SE County: Buncombe (please attach) Regional Office: Asheville Regional Office Previous Exp. Date: 11/30/91 Treatment Plant Class: It Classification changes within three mules: Requested by: Angela Y. Griffin Date: 6/28/91 Prepared by: t/ Date: �✓�(- %/ Reviewed by: Date: �1 Modeler Date Rec. # T " It q1I (a3z Drainage �l (mi2.) • / Avg. Streamflow (cfs): Z 7Q10 (cfs) Q.4 Winter 7Q10 (cfs) D. 6—30Q2 (cfs) D. 7 Toxicity Limits: IWC o2 8 % Acute/C onD Instream Monitoring: �t iell ParametersTUpstream lA/(SIGN Ck Location atdD✓L t. DownstreamT Location 4x�nie)</"/'G Effluent Characteristics Sumner Winter BOD5 (m ) 550.0 30.0 NH3-N (mg/1) a �OYI/I 6 9 /Y143I/ 7/ZT✓ D.O. (mg/1) TSS(mg/1) rj0_D �D•U F. Col. (/100 ml) ZXIC 7 pp pH (SU) , C/(jWf //) 7-71, 6n /0 ii9vYli%Y rnOYii ' Comments: 1NG1&t4A S X/y - cm- / ' r. � J-yR•• •,.` .. - _ its•.• \ • .. / % � �y O k /. Mile6. �\ Mile --- cc JIN fi o �I !�'" FISGAM GAME ,. PRESEHVE :c - _ .fir ,. . ' • •' �; r� L'.`•� (P -.r -• 'r'i% • s�: �� `s . _ � .mot � • � 4 •:• ;;, C� ar�—, o `�?1 �'S'o �: l.� : �_ � . �._ ,.y � �j m La�:c �' i •1 q1 . _, Cem:. ` Van 41 `,� • • ,ip"el00 3332' SIC, ` � • , �L ` �►. ' I_>e"wood Lake i P. S -I , *NATIONALI QREST - :,_:... 1 -: ' PISGAH.XuI:DLIFE •___ --�._ � - �- — -. ,-r NIANAGEI\�E-T AREA ! , 1Z._ \ V , _�� ••,i „� •.` '' Braiwh `l . Mile 257 Bent Creek RoAch. I.ake� �0 1' ;:tee:�-•.�..a:�i:f�,:-,;�• •' 31 I'ISC'x iFI �'4rILI)LTFF— . r'_Vr? N AGE ?NT VARP its; k;�:I�'f CRE'r.iC rrf`'>»ic: 4 f -~- F.\YE't:i�SF�'�T�1I.�2256 4q.P FOPEST .. _ ":,� RECEIVED Water Quality Section Facility Name: NPDES No.: Type of Waste: Facility Status: Permit Status: Receiving Stream: Stream Classification: Subbasin: County: Regional Office: Requestor: Date of Request: Topo Quad: FACT SHEET FOR WASTELOAD ALLOCATION Request # Utilities, Incorporated/Bent Creek WWTP NC0036684 Domestic - 100% Existing Renewal Wesley Creek C 040302 JUL 1 7 1991 6329 Asheville Regional Office Asheville, North Carolina Buncombe Stream Characteristic: Asheville USGS # Griffin Date: 6/28/91 Drainage Area (mi2): EBSE Summer 7Q10 (cfs): Winter 7Q10 (cfs): Average Flow (cfs): 30Q2 (cfs): IWC (%): Wasteload Allocation Summary (approach taken, correspondence with region, EPA, etc.) 03.4478.9350 1985 0.9 0.4 0.5 1.2 0.7 28 Facility should be given a choice of owammonia limits or a toxicity test. A letter regarding residual chlorine will be sent. Fecal coliform limit changed to 200/100 ml. Facility is calculating arithmetic means for fecal coliform averages, not geometric means. -"54Yeam do4ix- IMK.6 5uWc;1. .6. Cancenkafions are 1 61*-i fiv L mg�� ylav rou� - TPGui;u clxmgein )Wm.Pemk" ew�. 8°(- -/n ,22t°C. Special Schedule Requirements and additional comments from Reviewers: 2 CONVENTIONAL PARAMETERS Existing Limits: Monthly Average Wasteflow (MGD): 0.1 BOD5 (mg/1): 30.0 NH3N (mg/1): monitor DO (mg/1): 5.0 TSS (mg/1): 30.0 Fecal Col. (/100 ml): 1000.0 pH (SU): 6.0-9.0 Residual Chlorine (µg/l): monitor Oil & Grease (mg/1): TP (mg/1): monitor TN (mg/1): monitor Recommended Limits; 1 Monthly Average with NVnthly Average 't toxicity test onia limit Summer Winter Su er Win Wasteflow (MGD): 0.1 0.1 0.1 0. BOD5 (mg/1): 30.0 30.0 30.0 3 .0 NH3N (mg/1): monitor monitor 3.0 .9 DO (mg/1): 5.0 5.0 5.0 5.0 TSS (mg/1): 30.0 30.0 30.0 30.0 Fecal Col. 000 ml): 200.0 200.0 200.0 200.0 pH (SU): 6.0-9.0 6.0-9.0 6.0-9. .0-9.0 Residual Chlorine (µg/l): monitor monitor mom r onitor Toxicity test (P/F): @ 28% @ 28% TP (mg/1): monitor monitor m 'tor mo 'tor TN (mg/1): monitor monitor onitor moni r Limits Changes Due To: Change in 7Q10 data Change in stream classification Relocation of discharge Change in wasteflow Other (ammonia toxicity) Instream data New regulations/standards/procedures New facility information WQ or EL WQ WQ Parameter s) Affected x Fecal Coliforms x NH3 as N X 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. No parameters are water quality limited, but this discharge may affect future allocations. 3 INSTREAM MONITORING REQUIREMENTS Upstream Location: Wesley Creek above discharge pipe Downstream Location: Wesley Creek at bridge downstream from pipe Parameters: D.O., Fecal, Temperature Special instream monitoring locations or monitoring frequencies: MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS Adequacy of Existing Treatment (- 7-bX f&-r ��Ti � &� GC�t4N i se� �d �-: �r t�7's Has the facility demonstrated the abili �o S�the ropo new 'ts w th exlstuzg tre tment facilities? Yes No If no, which parameters cannot be met? Would a "phasing in" of the new limits be appropriate? Yes No If yes, please provide a schedule (and basis for that schedule) with the regional office recommendations: If no, why not? Special Instructions or Conditions Wasteload 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? (Y or N) If yes, explain with attachments. 10/89 Facility Name0�J�S �ncJ�j 4Ki tk `j/ Permit # 36z� CHRONIC TOXICITY TESTING REQUIREMENT (QRTRLY) The effluent discharge shall at no time exhibit chronic toxicity in any two consecutive toxicity tests, using test procedures outlined in: . 1.) The North Carolina Ceriodaphnia chronic effluent bioassay procedure (North Carolina Chronic Bioassay Procedure - Revised September 1989) or subsequent versions. The effluent concentrationAt which there may be no observable inhibition of reproduction or significant mortality is % (defined as treatment two in the North Carolina procedure document). The permit holder shall perform r r monitoring using this procedure to establish compliance -.with the permit condition. The first tot will a performed qftter Wrydays from issuance of this permit during the months of �co (jam Effluent warn sampling for this testing shall be performed at the NPDES permitted f nal effluent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Forth (MR-1) for the month in which it was performed, using the parameter code T0P3B. Additionally, DEM Form AT I (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Environmental Management P.O. Box 27687 Raleigh, N.C. 27611 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in -association with the toxicity tests, as well as all doselresponse data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly test requirement will revert to quarterly in the months specified above. Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Environmental Management indicate potential impacts to ithe receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. `'n FF: Failure test conditions as mecified irl the cited dOCUnlent, such as minimum ... r•t. �. �1:?��2�1 �. - _. .... l: i��: �ti �}:��'._..LT�_ �"'�-i;1=1:�j�,_�i�... _ ��i, ,r_ � "1 .. • . _ r�•lC,iti'1• ',..,,. tom. ','. .......�`e tvS 1 :)�.:...!.11i0:•!11{,�1/(,�:;:ii � r�',•� _ .. .' ,:-rnited Flow _..e2._�_ MGU i:ec;vnirlic:ncicci by: i WC% Basin & Sub -basin o41ozoz..- t? cceivin Stream s - County _ uor,,&y6&e VTDate 7 ('hronic Toxicity (Ceriodaplinia) P/F at4-��''<:sc> 1 44ug Imp-ig) 30�iZ = 0, P• 4 G�- fler��,� S, Mcr9R►a��s�i'fe.,c� f �i�n CrY►�,�n fc�c.Y?G , y� lyra,-S.- pvo,�,4 ft'J e/t-1C,rC/1:, �, r=� r� it Ys ;� Gt �5 7�7G�1�J 1� i4l/��' c~ J dww-&em"o 2 j / ' / �i �c+� f� aYI'C��IV c.[.• � r� r� . �,= � r�rc�, — ('f � r. C "� � .��'^• �'l"—� Lti�:�C -r` c:•'C ,Y �'�' �- � 1 �'f f /!iI �! �tC� • �"GcG/ j� IS CC�I G �7�'%� / OP/� 1�i'ZG�,' �J ��t 6f �IB�S GIG�i • 0.3 . 'lY7 ?". V5-V (l�O n f� Y •'7 , Co 14 a• 7 7Q,[b 3Z .� BENT CREEK WWTP - Allowable Waste Concentrations SUMMER Residual Chlorine Ammonia as NH3 7Q10 CFS 0.4 17Q10 CFS 0.4 DESIGN FLOW MGD 0.1 DESIGN FLOW MGD 0.1 DESIGN FLOW CFS 0.155 DESIGN FLOW CFS 0.155 STREAM STD UG/L 17.0 STREAM STD MG/L 1.0 UPS BACKGROUND LEVEL UG/L 0 jUP9 BACKGROUND LEVEL MG/L 0.22 IWC % 27.927928 IWC % 27.92793 Allowable Concentration u /I 60.870968 Allowable Concentration m /I 3.012903 WINTER Ammonia as NH3 7010 CFS 0.5 DESIGN FLOW MGD 0.1 DESIGN FLOW CFS 0.155 STREAM STD MG/L 1.8 UPS BACKGROUND LEVEL MG/L 0.22 IWC % 23.66412 Allowable Concentration m /1 6.896774 NCO036684 DAG 7/1.0/91 STREAM DATA 1 �� ' `�-fir � i ✓ L'� � •'� �-- INSTREAM SELF -MONITORING DATA MONTHLY AVERAGES `YI :T 1 �j , %N✓��,ir . -- y Discharger: L5 f �f� Lt J I Permit No. 3.(.Oc �L� Receiving Stream: ' LSy h Tt'k Sub -basin: Off_03 pZ 52 Upstream Location: ffne{ .5'V (Apt Downstream Location: /3T��. DATE TEMP D.O. COND. FECAL COLI. TFMp no mnn I:r_r`ei r _n Dec-9 Nov-9 Oct-9 Sep-9 Aug-9, Jul-9' Jun-9, May-9, Apr-9, Mar-9' Feb-9' Jan-9 Dec-9( Nov-9( Oct-9( Sep-9( Aug-9C Jul-9C Jun-9C May-9C Apr-9C Mar-9C Feb-9C Jan-90 Dec-89 Nov-89 Oct-89 Sep-89 Aug-89 Jul-89 Jun-89 May-89 Apr-89 Mar-89 Feb-89 Jan-89 �a� Page 1