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Home My WebLink AboutNC0023931_Wasteload Allocation_19871105NPDES DOCUMENT SCANNING COVER SHEET NC0023931 Greenville (GUC) WWTP NPDES Permit: Document Type: Permit Issuance Wasteload Allocation '`\, Authorization to Construct (AtC) Permit Modification Complete File - Historical Report Instream Assessment (67b) Environmental Assessment (EA) Permit History Document Date: November 5, 1987 This document printed on reuse paper - ignore any content on the re'erse side NPDES WASTE LOAD ALLOCATION PERMIT NO.: NCO() 2 3' 3 ( FACILITY NAME• C2EEMVILLF U77Lf77 C COMM(5S(0N Facility Status: EXISTING PROPOSED (circle one) Permit Status: RENEWAL MODIFICATION (circle one) Major Minor Pipe No• n O k Design Capacity (MGM- 0 r�� Domestic (% of Flow) - Industrial (% of Flow): 7 Comments• 9,5 UNPERMIITED NEW RECEIVING STREAM: T/R RIvER Class• Sub -Basin• C Reference USGS Quad- - (please attach) County: N l i 7. Regional Office: (circle •a. As Fa Mo lea Requested By: Reviewed By: Date- q(CO(zZ 7 WS Date: il/ Zl 8 J� Date: C /3A7 Modeler Date Rec. ,'A._ _ 6/6/117 _ 2 Drainage Area (mi) Avg. Streamflow (cfs)- ria ws t a �C t test 00..61 4I.44 7Q10 (cfs) 16C. Winter 7Q10 (cfs) 30Q2 (cfs) f? Cl Toxicity Limits: IWC U • 1 % (circle one) Acute /(Chroni Instream Monitoring: Parameters Upstream /) j Downstream ,` Location �� YAM6. I LI II Location e COwtMo.45 fade, r-ectu./4,t&A-- 48)1c iMGti 0Lwi.c4--gt W t v -4 . Effluent Characteristics Summer Winter BOD5 (mg/I) 2 3 c NH3 N (mg/1) �- D.O. (mg/I) S TSS (mg/1) 30 3 0 F. Col. (/100m1) ( oo c (oOp pH(SU) 6,_/ (:,_/ comments. 0e-l-toi ' -14 r/gobs ljtevtJ�� Q� a tkl.,` A L 6-impala/AAA et. �,ro � (�.w. Vh P1 4�A�4� ?{SAS ItW1A1 / /l`, '' Y� ~^ YOD� yu/ Request No.: WASTELOAD FORM 4108 Facility Name: Greenville Utilities Commission NPDES No.: NC0023931 Type of Waste: 93% Domestic, 7% Industrial | Status: Existing Receiving Stream: Tar River Classification: C Flows are requlated and tidal Subbasin: 030305 Drainage area: sq mi County: Pitt Summer 7010: 166 cfs Regional Office: WaRO Winter 7010: cfs Requestor: Bridges Average flow: cfs Date of Request: 6/16/87 30Q2: cfs Quad: E29SE RECOMMENDED EFFLUENT LIMITS Monthly Avg Summer Winter Wasteflow (mgd): 10.50 10.50 BOD5 (mg/1): 23 30 NH3-N (mg/1): 5 DO (mg/l): 5 -- TSS (mg/1): 30 30 Fecal Coliform (0/100ml): 1000 1000 pH (su): 6-9 6-9 Toxicity Testing Req.: Ceriodaphnia mini -chronic bioassay -quarterly 8.9% effluent concentration ------------------------- MONITORING ---------------------------------- Upstream (Y/N): Y Location: Current site @ Commons Park. Downstream (Y/N): Y Location: Current site @ Yankee Hall. ° 3/k7y , �" ________________________��___ rnwm�m��-�________'___-----�-----�� Existing limits are recommended. Greenville has appeared to have problems meeting the NH3-N limit. Optional accepatble combinations of BOD5 and NH3-N are provided in the attached graph. Note attached toxicity testing requirement. Effluent monitoring for residual chlorine, TP, and TN. Instream monitoring for B�On� 5lN�,�*� O, fecal coliform, and temperature ___________________ --- ___oey�_�w�se�s�� Recommended by: ___ Reviewed by Tech Support Supervisor: Regional Supervisor: Permits & Engineering: NOV 9 �� RETURN TO TECHNICAL SERVICES BY: "nwv �� V��v ) /�� Date: /�/�� Date: Date: Date: Facility Name &I4tVLI L U4i(,4ej CMt' Permit # A0013Q3 1 test TOXICITY TESTING REQUIREMENT The effluent discharge shall at no time exhibit chronic toxicity using procedures outlined in: 1.) The North Carolina Ceriodaphnia chronic effluent bioassay proce- dure (North Carolina Chronic Bioassay Procedure - Revised "February 1987) or subsequent versions. c,o/o The effluent concentration at which there may be no observable inhibi- tio of reproduction or significant mortality is $ (defined as treatment twoin the North Carolina procedure document). The permit holder shall perform 1 ar monitoring using this procedure to establish compliance with thelpermit ondition. The first test will be performed within thirty Y days from issuance of this permit. Effluent sampling for this testing shall be performed at the NPDES permitted final 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 Form (MR-1) for the month in which it was performed, using the appropriate parameter code. 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 chemi- cal/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine must be measured and reported if chlorine is employed for disinfection of the waste stream. Should any test data from this monitoring requirement or tests per- formed 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 docu- ment, such as minimum control organism survival and appropriate environmen- tal controls, shall constitute an invalid test and will require immediate retesting. Failure to submit suitable test results will constitute a fail- ure of permit condition. 0.0 70.0 �T Q [(p(p cfs Permited Flow UN S MGD Recommended by: Basin & Sub -basin b30 3OS Receiving Stream -Tav g. ,gam County PI 4( LIM 4,5 54C1417^ Date 10/7f 9Y' 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 Summer Allocation for Greenville WWTP Acceptable Combinations of BOD5 & NH3-N 2 /6 0/8 9/10 7/12 /14 - - 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 3 NH3-N (mg/1)