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Home My WebLink AboutNC0024406_Waste Load Allocation_19890426 (3)NPDES WASTE LOAD ALLOCATION Modeler Date Rec. # PERMIT NO.: 14COO q Yob I I Z 3a FACILITYNAME: GOA Facility Status: PROPOSM (circle one) Permit Status: l aMu NEW WN18 oes) Major _/ 1111a0 . Pipe No: Design Capacity (MGD): .7 Domestic (S of Flow): Industrial (X of Flow): Comments: RECEIVING STREAM: �. P , ;eP_ Class: 5 Sub -Basin: 02J-01-0 [ Reference USGS Quad: L 15? SC (please attach) County: C Regional Office: An Fa Me. Ra Wa Wi (95 (circle one) Requested By: ,Y_`ivcD L� '�s'CC-cam Date: Prepared By: Date:.?1 It %?9 "X)_ I -Alk rReviewed By:Date: 7 I 8 Drainage Area (mid) SO ! Avg. Streamflow (cfs): S6 7Q10 (cfs) 24 Winter 7Q10 (cfs) IO O 30Q2 (cfs) 120 Toxicity Limits: IWC x (circle ons) Acute / Chronic -------------------- RECOMMENDED EFFLUENT LIMITS ------------------ Monthly Daily Average Max Basis Wasteflow (mgd): monitor 1988 Avg: 7.90 TSS (lbs/day): 1303.47 1808.6 BPT 40 CFR 423.12 oil & Grease (lbs/day): 422.64 563.52 BPT Total Copper (mg/1): 1 1 BPT=BAT Total Iron (mg/1): 1 1 BPT=BAT Selenium (eg/1): 23 23 WQ pH (SU): 6-9 BPT=BAT Toxicity: Quarterly Chronic Pass/Fail @ 66 No discharge of PCBs BPT=BAT ----------------------------- MONITORING ------•-------------------- Effluent monitoring: arsenic Instream m 'toring: Current sampling should be continued. RecommwJ JT�#15 update Pt IIYF permit condition requiring us�R DEM sampling methodology ---------------------•--------- COMMENTS --------------------------- Recommend renaming pipe 003a to 005 and 003b to 003. Recommend deletion of permit conditions specified in Part III N and ()►n current permit. Update Part III R. Existing selenium limit = 4.2 lbs/day from a combination of the 0036 ' release from the Belews Lake Dam, i.e. total loading to the Dan :°;ave r This was to be an interim limit until conversion to a dry ash systev�l .Uf. completed. Recommending limits of 5 & 23 dg/l for 003a & b, respective 003a is only to be used to augment lake levels and should not be uw'eA the wet ash system is put into operation due to dry ash system upseb ---------- ---------------------------------------------------- vvna�uc�ii`i: - - - - - - - M� v x I FOR APPROPRIATE DISCHARGERS, LIST COMPLETE GUIDELINE LIMITATIONS BELOW Effluent Characiterlatics Monthly .'.AvgTage Daily Maximum Comments z 61 so ,s - dw iQs 'q11pT Od G' cbs APT cQ o 97 7--1wty -7 'pq /Y0 Request No.: 5230 ------------------- WASTELOAD ALLOCATION APPROVAL FORM ----------------- Facility Name: NPDES No.: Type of Waste: Status: Receiving Stream: Classification: Subbasin: County: Regional Office: Requestor: Date of Request: Quad: Duke Power - Belews Creek NC0024406 Pipe 0031:3 Ash pond discharge Existing/Renewal Dan River WS III 030201 Stokes WSRO Foster 4/25/89 B18SE Power Station DA: ` mic QA: 576 cfs 30Q2: 120 cfs 7010s: � cfs Request No.: 5230 ------------------- WASTELOAD ALLOCATION APPROVAL FORM ----------------- Facility Name: NPDES No.: Type of Waste: Status: Receiving Stream: Classification: Subbasin: County: Regional Office: Requestor: Date of Request: Quad: Duke Power - Belews Creek NC0024406 Pipe 0031:3 Ash pond discharge Existing/Renewal Dan River WS III 030201 Stokes WSRO Foster 4/25/89 B18SE Power Station DA: 501 mic QA: 576 cfs 30Q2: 120 cfs 7010s: 24 cfs 7010w: 100 cfs -------------------- RECOMMENDED EFFLUENT LIMITS ------------------------ Monthly Daily Average Max Basis Wasteflow (mgd): monitor 1988 Avg: 7.90 mgd - TSS (lbs/day): 1303.47 1808.61 BPT 40 CFR 423.12 Oil & Grease (lbs/day): 422.64 563.52 BPI- Total PTTotal Copper (mg/l): 1 1 BPT=BAT Total Iron (mg/!): 1 1 BPT=BAT Selenium (pg/l): >121�n7�z -��=E�f��]8-7 pH (SU): 6-9 BPT=BAT Toxicity: Quarterly Chronic Pass/Fail @ 66 % No discharge of PCBs BPT=BAT ? ----------------------------- MONITORING ---------------------------------` Effluent monitoring: arsenic /'� ' Instream monitoring: Current sampling should be continued. Recommend permit condition requiring use of DEM sampling method. ------------------------------ COMMENTS ---------------_�-��---------'---'-�� Recommend renaming pipe 003a to 005 and 003b to 003. ~~ y�owk Recommend deletion of permit conditions specified in Part 1110 and O of current permit. Existing selenium limit = 4.2 lbs/day from a combination of the 003b and release from the Belews Lake Dam, i.e. total loading to the Dan River. This was to be an interim limit until c sion to a dry ash system was completed. Recommending limits of 10 & Ab Pg/l for 003a & b, respectively. 003a is only to be used to augment lake levels and should not be used when the wet ash system is put into operation due to dry ash system upset. ___________________________________________________________________________ Recommended by: _ Date: _��J�.__ Reviewed by � Instream Assess. Supervisor: Date: ��1�� =� ---T /- --- Permits & Engineering: AL RETURN TO TECHNICAL SERVICES BY: .1 .... ..... ..... ..... ..... ..... ..... _... ..... Date: _ ..... _..... wNL _ _0_1 _ _19_20_9_ __ P Facility Name D1i FOWCA ZW� � ! �W . Permit # AUCOOZcI )t I f-CO3 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 `February 1987) or subsequent versions. The effluent concentra on at 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 quarterly monitoring using this procedure to establish compliance with the permit condition. The first test will be perform d after thirty days from issuance of this permit during the months of 6 wom Effluent sampling for this testing shall be performed at the APDES permitted final oMent discharge below all treatment processes. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Monitoring Form (MR -1) for the month in which it was performed, using the parameter code TGP3B. Additionally, DEM Form AT -1 (original) is to be sent to the following, address: Attention: Technical Services 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 dose/response 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 the receiving stream, this permit may be re -opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate retesting (within 30 days of initial monitoring event). Failure to submit suitable test results willconstitute nompliance with monitoring requirements. 7Q10 cfs Permited Flow AMGD Recommended by. IWC% W Basin &Sub -basin (73020 t � �� r / Receiving Stream 'i�nn� R►I/" cam• County 644 s Date 5/31 /09 "Chronic Toxicity (Ceriodaphnia) P/F at .eta-%, Ava 4ol 4` (V , See Part a, Condition s