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NC0020761_wasteload allocation_19910129
NPDES WASTE LOAD ALLOCATION PERMIT NO.: NCO0207 61 PERMiTTEE NAME: Town of North Wilkesboro / Town of North Facility Status: Existing btrilkrsba�o w�rTp Permit Status: Renewal Major q Minor Pipe No.: 001 Design Capacity: 1.0 MGD Domestic (% of Flow): Industrial (% of Flow): Comments: 2.0 % pretreatment information attached RECEIVING STREAM: the Yadkin River Class: C Sub -Basin: 03-07-01 Reference USGS Quad: C 14 NW County Wilkes (please attach) Regional Office: Winston-Salem Regional Office Previous Exp. Date: 3/31/91 Treatment Plant Class: Class 2 Classification changes within three miles: none Requested by: Rosanne Barona Date: 12/17/90 Prepared by: Date: t Reviewed by: Date: -a0 t> 5 s Modeler d Date Rec. # SAW IZ 17 So 5-96 Drainage Area (mZi) %fa Avg. Streamflow (cfs): (0$3 7Q10 (cfs) iq�, -Winter 7Q10 (cfs)_Z&7 30Q2 (cfs) Toxicity Limits: M % Ac�;P,79 Chronic Q�y Instream Monitoring: tc o % Parameters Upstream Y Location Ar L&4sr 100f WnAe wh Downstream Y Locationfir LEA9 AOQ vsbm) OR sR1157 Effluent Characteristics Summer Winter BOD5 (m ) 3m NH3-N (mg/1) D.O. (mg/1) TSS (mg/1) F. Col. (/100 ml) pH (SU) Ash �-9 AIM EWJ' AOAI� TVA PLVW Comments: $ASbc oa wm OAC 1- s+latiu,� TAa RIM-«y-5WaA.D . MoNtT1X� Fa�2 L Coat�tzM f 5Q(o(0 5i .5 c k,� -1- I V AN 2 5 19 91 FACT SHEET FOR WASTELOAD A LOCATIONS �!� k' QUADTY SECT101,,' Facility Name :North Wilkesboro WWT 111.C. DID NPDES No. :NC0020761 Type of Waste :98% Domestic/2o Industrial ` J 2 �`)?� Facility Status :Existing Permit Status :Renewal Winsto -Sale T4 Receiving Stream :Yadkin River Stream Classification:C Regional ©face Subbasin :030701 County :Wilkes Stream Characteristics: Regional Office :Winston Salem USGS # est Date Requestor :R. Barona Drainage Area: 526.0 sq.mi. Date of Request :12/17/90 Summer 7Q10: 196.0 cfs Topo Quad :C14NW Winter 7Q10: 267.0 cfs Average Flow: 683.0 cfs 30Q2: 393.0 cfs Wasteload Allocation Summary Facility currently has a pretreatment program. Based on current information, the facility should perform effluent monitoring for Copper, Silver, and Cyanide. Per guidance for Fecal coliform, the facility should monitor up and downstream for Fecal coliform and the facility should monitor the effluent for Fecal coliform to determine if a limit may be necessary. Compliance data indicates pH violations. WASTELOAD SENT TO EPA?(Major) _Y (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 fits into basinwide plan) Schematic and toxics spreadsheet are attached. Facility will be up for renewal as will all facilities in 030701(Yadkin0l in May 1994). Recommended by: wok.- ` ( .F Date: I/tv ''[ Reviewed by / /, , ,, G� Instream Assessment: �1.� �'ki WW&•iL Date: Regional Supervisor:!�ZLDate: Permits & Engineering:....,� t_ Date: i:?S 4- RETURN TO TECHNICAL SERVICES BY: FEB 16 1991 JAN 2 � 199, PERMITS 6 EA''GINEERING �r V -a - CONVENTIONAL PARAMETERS Existing Limits Monthly Average Summer/Winter Wasteflow (MGD): 1.0 BOD5 (mg/1): 30/30 NH3N (mg/1): DO (mg/1): TSS (mg/1): 30/30 Fecal Coliform (/100 ml): PH (SU) : Oil & Grease (mg/1): TP (mg/1) : TN (mg/1): Recommended Limits Monthly Average Summer/winter Wasteflow (MGD): 1.0 BODS (mg/1): 30/30 NH3N (mg/1): DO (mg/1) : TSS (mg/1): 30/30 Fecal Coliform (/100 ml) : MOVA to-4- pH ( SU) : Oil & Grease (mg/1): TP (mg/1) . TN (mg/1) : Daily Maximum 6-9 Daily Maximum Limits Chancres Due To: Parameter(s) Affected Instream Data Ammonia Toxicity Chlorine Nutrient Sensitive Waters HQW New 7Q10 flow data Special Modeling Studies New facility information Other No change for conventional parameters. 6-9 (explanation of any modifications to past modeling analysis includidng new flows, rates, field data, interacting discharges, etc.) -3- (See page 4 for Miscellaneous and special conditions if apply) TOXICS Toxicty Limit Monitoring Schedule Existing Limit: None Recommended Limit: Acute Quarterly limit of 78% Toxics or MQtals limit Existing Limits Daily Maximum Cadmium (ug/1) : Chromium (ug/1) : Copper (ug/1): Nickel (ug/1): Lead (ug/1) : Zinc (ug/1) : Cyanide (ug/1) : Phenols (ug/1) : Mercury (ug/1) : Silver (ug/1): Chlorine (ug/1): Recommended Limit Cadmium (ug/1) : Chromium (ug/1) : Copper (ug/1) : Nickel (ug/1): Lead (ug/1) : Zinc (ug/1) : Cyanide (ug/1) : Phenols (ug/1) : Mercury (ug/1): Silver (ug/1) : Chlorine (ug/1): Limits Changes Due to: Change in 7Q10 data Change in stream classification Relocation of discharge Change in wasteflow New pretreatment information Failing toxicity test Other Daily Maximum MONITOR MONITOR MONITOR Parameter(s) Affected Cu, Ag, CN (effluent monitoring) -4- tudy, interaction,= - MISCELLANEOUS INFORMATION & SPECIAL CONDITIONS Miscellaneous information pertinent to the renewal or new permit for this discharge. Include relationship to the Basinwide management plan. INSTREAM MONITORING REQUIRMENTS: Fecal coliform Upstream: y Location: at least 100 ft upstream Donwstream: y Location: at least 300 ft downstream or SR 115 Special Instream monitoring locations or monitoring frequencies: SPECIAL INSTRUCTIONS OR CONDITIONS SCHEDULE REQUIREMENTS: (for P&E or region to recommend time frame for implementing new limits) ADDITIONAL "REVIEWER" COMMENTS: Additional Information attached? (yes or no) If yes, explain attachments. Yes. Toxicity Test requirement, Toxics spreadsheet .3t� YnaAc 0 WtA rW*? �d�� iYt ryvtu fisry a-44 cl-d 5-�;tct Lu1A >,� b) Apt -4eK,-t 4o EPA Facility Name t WTI' Permit # C-002c7G 1 ACUTE TOXICITY TESTING REQUIREMENT (QRTRLY) Daphnid 48 hr - LC50 The permittee shall conduct acute toxicity tests on a quarter basis using protocols defined as definitive in E.P.A. Document 600/4-85/013 entitled "The Acute Toxicity of Effluents to Freshwater and Marine Organisms". The monitoring shall be performed as a Daphnia pulex or Ceriodaphnia 48 hour static test, using effluent collected as a 24 hour composite. The LC50 of this effluent using the previously stated methodology may at no time in any two consecutive toxicity tests be less thanes%. Effluent samples for self -monitoring purposes must be obtained during representative effluent discharge below all waste treatment. The first test will be performed ter thirtyfrom issuance of this permit during the months of ►a� APK, Tu+., oGT The parameter code for this test if using Dania pulex is TAA3D. The parameter code for this test if using Ceriodaphnia is TAA3B. 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 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 either these monitoring requirements 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 will constitute noncompliance with monitoring requirements. 7Q10 N0.0 cfs Permitted Flow I, o MGD IWC% 0.783 _ Basin & Sub -Basin yAD ol-(oo7oi) Receiving Stream japPAI A(V&P_ County 1 Recommended by: C4 U/�� Date t /-7 /qo **Acute Toxicity(Daphnid 48 hr) LC50_jLX%, TTTq, ott , See Part 3 , Condition X* . 12/27/90 ver 3.1 T O X I C S R E V I E W Facility: N. Wilkesboro NPDES Permit No.: NC0020761 Status (E, P, or M) : E Permitted Flow: 1.0 mgd Actual Average Flow: 0.7 mgd subbasin: 030701 Receiving Stream: Yadkin River I--------- PRETREATMENT DATA -------------- I---- EFLLUENT DATA---- I Stream Classification: C I ACTUAL PERMITTEDI I 7010: 196.0 cfs ) Ind. + Ind. + I FREQUENCY I IWC: 0.78 % I Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Eflluent Criteria I Pollutant AL Cone. I Eff. Load Load Load Load Load I Cone. Violations) --------- -- (ug/l) -------- (ug/1) -------- I b I -------- (#/d) -------- (#/d) ------- (#/d) - (#/d) (#/d) I (ug/1) (#vio/#sam)I Cadmium S 2.0 I 924 0.03 0.0008 0.031 0.0430 I 0.073 I I Chromium S 50.0 I 76% 0.06 0.0023 0.062 0.2850 0.345 I I I Copper AL 7.0 I 82% 0.24 0.0480 0.288 0.3450 0.585 I I N Nickel S 88.0 1 324 0.10 0.0049 0.105 0.3970 0.497 I I P Lead S 25.0 I 8194 0.30 0.0061 0.306 0.0720 0.372 I I U Zinc AL 50.0 I 77% 0.91 0.0061 0.916 0.2470 1.157 1 I T Cyanide S 5.0 I 59% 0.02 0.0011 0.021 0.1080 0.128 I I Mercury S 0.012 I Olt 0.0 I I S Silver AL 0.06 1 946 0.02 0.0050 0.025 0.0400 0.060 I I E Selenium S 5.00 1 04 0.0 I I C Arsenic S 50.00 I 0P, 0.0 I I T Phenols S NA I Ord 0.0 I I I NH3-N C I 08 0.0 I 10 T.R.Chlor.AL 17.0 I 09 I I 0.0 I I I N I I--------------- I ALLOWABLE PRDCT'D PRDCT'D I I PRDCT'D--------- MONITOR/LIMIT --------- I i 1--ADTN'L RECMMDTN'S-- I I Effluent Effluent Effluent Instream I Recomm'd I I Cone. using using Cone. Based on Based on Based on I FREQUENCY INSTREAM I I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. I Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent ( based on Recomm'd 7 I -- I (#/d) (ug/1) (ug/1) (ug/1) (ug/l) Loading Loading Data I OBSERVED (YES/NO) I --------- Cadmium S I I --------- 26.55 ----------------- 254.903 0.44 -------- 1.0519 -------- 0.000 ------- -----------------I ----------------- I I I A Chromium S I 221.28 6372.581 2.69 14.9137 0.000 3ErwEEN I I N Copper AL I 41.31 892.161 9.34 18.9664 0.000 Monitor L(u)monitor 69. 74 X 4 8,9ZI 1 A Nickel S I 137.46 11215.742 12.85 60.8725 0.000 I I L Lead S I 139.76 3186.290 10.48 12.7307 0.000 I ( Y Zinc AL I 230.90 6372.581 37.95 47.9311 0.000 I ( S Cyanide S I 12.95 637.258 1.56 9.4526 0.000 Monitor I I I Mercury S I 0.01 1.529 0.00 0.0000 0.000 i I S Silver AL I 1.06 7.647 0.27 0.6484 0.000 Monitor (AI)Monitor 0.76Ix4#-0761 I Selenium S I 5.31 637.258 0.00 0.0000 0.000 i I R Arsenic S I 53.11 6372.581 0.00 0.0000 0.000 1 I E Phenols S 1 0.000 0.00 0.0000 0.,000 I I S NH3-N C I 0.000 0.000 I l U T.R.Chlor.AL I 2166.677 0.000 I I L I I IT I I I S /Z Nccc z-o7c,1 e230701 Ne.;,w I W , : �� w �cH< � l /lrtf o2(r2o3000'a3 D. A, - SZIo -z _ .i'� 3roogh4/olo80? AL LAT / m M L�5$61Qo j�A1fP WE'LL usE ; jAR. �Z6 oz 7Qtos L lR& cs mow = 7W 1 GyPtr4 � � rt5ti' 7 7glo5 = Z56 M`t 3-77 �0 7 79otiG 5) lC // l 1nl�v � r vj :r-> A',4oTc � w, L cb u;�,E. Z). ,4 Ea` Cwr ww D.2 M, OF s s(�4; Por✓JT� 6E,TIAA i tS F,/P M 07— 1 ' 0L2000 ( 6,a 701, r7. - Sol x 3a 6 SS 4AVk �o 30 CM 5 Vlo(_1'TroAl5 p { ra Psi S7 4M2 (-V�:R- 5 U v(-,/zY 0 t 4 l 7o-tM- N, TOT -Al P --(r n/ Sul prrr TI?CJ47-wek , 1- CAN rr /VG0D207(ol Nolp-q Nltxe=5&vw y4vKsv %2,Vc C 6x/s T��� cr (373 ca g92 /vrN<9ve? Pb 3e � 1 37 koAjt �d2 ( ? 7• 6 /UN<To2 NID h// 7orl ea- f 4JO O 307o/ '�,j JA) 0 No 70X�CI+Y 7E57/tiK esr'R�F /z 0o2T alC, ztS (�oH1�lsl2��rd �ivC?d/"572V — fi(9r 7r�a f C . IV c 7/ t S LlMa75 f=o,, 705' FG/L/7 `• No Ca maAl io -/,7r- aP5'T#e(-x'lK N B COMPUAIJC>C -PA" F yNDICA S '/'°)n!" C 01 VtOi A -PO J'z • N/l3 -N �R�.cowfg I � - � i — eeh� • A IV; 127 50� 61 —1 l Z7 4 331 =:�' FA r/c/7y 5douL.l PER�eclel �FFGU�NT GlQ5747ere7� f �jaNST��•� h��N> rO�L(NG Fj/1 FCKII� Cow PEA Sod' Gu>v,9�J � . 12/27/90 ver 3.1 T O X I C S R E V I E W Facility: N. Wilkesboro NPDES Permit No.: NCO020761 Status (E, P, or M) : E Permitted Flow: 1.0 mgd Actual Average Flow: 0.7 mgd Subbasin: 030701 Receiving Stream: Yadkin River I--------- PRETREATMENT DATA -------------- I---- EFLLUENT DATA---- I Stream Classification: C I ACTUAL PERMITTEDI I 7Q10: 196.0 cfs I Ind. + Ind. + I FREQUENCY I IWC: 0.78 $ I Domestic PERMITTED Domestic I OBSERVED of Chronicl Stn'd / Bkg I Removal Domestic Act.Ind. Total Industrial Total I Effluent Criteria I Pollutant AL Cone. I Eff. Load Load Load Load Load I Cone. Violationsl (ug/1) (ug/1) I : -------- (#/d) -------- (#/d) -------- (#/d) -------- (#/d) --------- (#/d)' I (ug/1) -------- I -------- (#vio/#sam)I --------- I --------- Cadmium -- S ---------------- 2.0 I I 924 0.03 0.0008 0.031 0.0430 0.073 I I Chromium S 50.0 I 76% 0.06 0.0023 0.062 0.2850 0.345 I I I Copper AL 7.0 I 821% 0.24 0.0480 0.288 0.3450 0.585 I I N Nickel S 88.0 I 328 0.10 0.0049 0.105 0.3970 0.497 I I P Lead S 25.0 I 81% 0.30 0.0061 0.306 0.0720 0.372 I I U Zinc AL 50.0 I 778 0.91 0.0061 0.916 0.2470 1.157 ( i T Cyanide S 5.0 I 598 0.02 0.0011 0.021 0.1080 0.128 I I Mercury S 0.012 I 0% 0.0 I I S Silver AL 0.06 I 949d 0.02 0.0050 0.025 0.0400 0.060 I l E Selenium S 5.00 I 09 0.0 I I C Arsenic S 50.00 I op, 0.0 I I T Phenols S NA I 08 0.0 I I I NH3-N C I 08 0.0 I 1 0 T.R.Chlor.AL 17.0 I 0$ I 0.0 I I I I N I I --------------- l I ALLOWABLE PRDCT'D PRDCT'D PRDCT'D I I --------- MONITOR/LIMIT --------- 1--ADTN'L RECMMDTN'S-- I I Effluent Effluent Effluent Instream I Recomm'd I I Cone. using using Cone. Based on Based on Based on I FREQUENCY INSTREAM ) I Allowable CHRONIC ACTUAL PERMIT using ACTUAL PERMITTED OBSERVED I Eff. Mon. Monitor. Pollutant I Load Criteria Influent Influent OBSERVED Influent Influent Effluent I based on Recomm'd ? I (#/d) (ug/1) (ug/1) (ug/1) (ug/1) -------- Loading -------- Loading Data I -----------------I OBSERVED (YES/NO) I ----------------- I --------- Cadmium -- S i--------- I 26.55 -------- 254.903 --------- 0.44 -------- 1.0519 0.000 1 I A Chromium S I 221.28 6372.581 2.69 14.9137 0.000 3EfEN I I N Copper AL I 41.31 892.161 9.34 18.9664 0.000 Monitor L(u)Monitor 61.Z, X4 e,9Zl I A Nickel S I 137.46 11215.742 12.85 60.8725 0.000 I I L Lead S I 139.76 3106.290 10.48 12.7307 0.000 I I Y Zinc AL I 230.90 6372.581 37.95 47.9311 0.000 I I S Cyanide S I 12.95 637.258 1.56 9.4526 0.000 Monitor I I I Mercury S ( 0.01 1.529 0.00 0.0000 0.000 I I S silver AL I 1.06 7.647 0.27 0.6484 0.000 Monitor (AI)Monitor 0-761X40.0761 I Selenium S ( 5.31 637.258 0.00 0.0000 0.000 I I R Arsenic S I 53.11 6372.581 0.00 0.0000 0.000 I I E Phenols S I 0.000 0.00 0.0000 0.000 I I S NH3-N C I 0.000 0.000 I l U T.R.Chlor.AL I 2166.677 0.000 I I L l I I T ( S North Carolina Division of Environmental Management Water Quality Section / Intensive Survey Unit December 6, 1990 'MEMORANDUM To: Ruth Swanek Through: Jay Sauber BPS f*A.- From: Howard Bryant$ Subject: Longterm BOD Analysis,North Wilkesboro WWTP County:Wilkes NPDES#: NCO020761 Sub-basin:030701 Receiving Stream: Yadkin River DAY BOD 5 9.2 10 15.7 15 19.9 20 22.4 25 24.1 30 25.5 35 27.0 40 28.0 50 29.5 60 30.2 70 31.4 80 33.1 90 34.0 100 34.8 110 35.3 Date Collected: 04/24/90 1030-1030 Collected by: D. Russell Cary Lab BOD-5: 11.0 Range of Final BOD:34.8-36.1 Test Evaluation: excellent pH:7.6 Sulfite:1.65 ml/100 Seed: seeded o Sample:97.7 BOD5 Range: 8.69-9.39 # BOD5 Reps:9 DAY NH3-N NUTRIENTS TKN NOX-N TOTAL N 0 0.65 1.9 4.80 6.7 5 0.53 1.9 4.80 6.7 10 0.21 1.3 5.80 7.1 15 0.04 0.8 6.20 7.0 20 0.05 1.2 8.80 10.0 25 30 0.02 0.8 6.30 7.1 90 0.02 0.8 6.30 7.1 Comments: Quality Assurance: five dilutions (10 - 50 0) averaged 33.0 mg/L and ranged from 32.1 to 34.7 mg/L (110 days). cc:Central Files Regional WQ Supervisor