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Home My WebLink AboutNC0026051_Instream Monitoring_19900507State of North Carolina Department of Environment, Health, and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Govemor George T. Everett, Ph.D. Wiliam W. Cobey, Jr., Secretary Director May 7, 1990 A. T. Rolan Department of Water Resources City of Durham 101 City Hall Plaza Durham, NC 27701 Subject: Instream Monitoring Requirements for the Farrington Road WWTP (NC0047597, Durham County) and the Triangle WWTP (NC0026051, Durham County) Dear Mr. Rolan: The Division of Environmental Management (DEM) was recently contacted by telephone by members of your staff and requested to review the summer instream monitoring requirements for Durham's Farrington Road, Eno River, Lick Creek, and Triangle WWTPs. Upon review of these requirements, it has been concluded that weekly instream monitoring of nutrients for the Farrington Road WWTP is acceptable, rather than the 3/week frequency currently contained in the NPDES permit for that facility. The NPDES permits for the Farrington Road and Triangle facilities will be changed so the instream monitoring requirements are identical. These changes only affect the monitoring requirements for the months of June, July, August, and September, which will be: Weekly: TP, PO4, TN, TKN, NO2 & NO3, and NH3 3/Week: Temperature, DO, Fecal Coliform, Conductivity, and pH Please note that pH monitoring will be required 3/week at both plants, as verbally agreed to by members of your staff. Also note that these require- ments apply only for the months listed and apply to both the Farrington Road and Triangle plants. They should be performed at all sites currently listed in the respective permits. No other changes to either permit will be made. I have instructed my staff to make the appropriate modifications to the NPDES permits. If you have not received the modified permits by June 1, when these requirements go into effect, you may as per this letter, monitor accor- ding to the above schedule and not be considered non -compliant with the NPDES permits. Pollution Prevention Pays P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-7015 !.1.. C,,, 1,1 (lnra.rh.n4 , AMem_ntn,o Ao-Ar,n rmnIrtwor Page two -M� Rn1an- If you have any questions or comments regarding this matter, please con- tact Trevor Clements or Dale Overcash of my staff at (919) 733-5083. -1) cc: Dale Overcash Arthur Mouberry Trevor Clements Bob DeWeese Central Files cerely, orge T. 12 11 \ortheast Creek at (3-7\) 1 102 10 — 9 8 F 7 0 6 5 — 4 3 2 1 1 1 1 1 1 i i i i 1 f 1 1 1 1 11111111111111111111111111111 83/01/18 84/01/04 85/01/09 86/01/09 87/02/20 88/04/22 89/05/24 Date DATE TIME MEDIUM DEPTH DO % DO 83/01/18 930 WATER 0 12.0 88.9 83/02/02 920 WATER 0 9.6 85.0 83/03/08 830 WATER 0 7.9 76.0 83/04/12 800 WATER 0 9.0 79.6 83/05/04 830 WATER 0 6.5 68.4 83/06/14 830 WATER 0 6.0 65.2 83/07/13 900 WATER 0 5.1 58.0 83/08/02 830 WATER 0 5.4 62.1 83/09/19 900 WATER 0 6.3 67.0 83/10/19 820 WATER 0 6.8 83/11/01 900 WATER 0 7.5 83/12/13 845 WATER 0 7.4 84/01/04 830 WATER 0 12.0 84/02/27 830 WATER 0 9.8 84/03/19 830 WATER 0 9.2 84/04/13 800 WATER 0 8.9 84/05/10 830 WATER 0 8.3 84/06/14 800 WATER 0 5.6 84/07/09 745 WATER 0 6.9 84/08/14 830 WATER 0 6.0 84/09/26 900 WATER 0 6.8 84/10/22 845 WATER 0 4.2 84/11/08 910 WATER 0 8.2 84/12/06 900 WATER 0 10.3 85/01/09 800 WATER 0 10.2 85/02/07 800 WATER 0 11.1 85/03/27 810 WATER 0 8.6 85/04/03 800 WATER 0 7.8 85/05/07 825 WATER 0 6.4 85/06/19 910 WATER 0 5.5 85/07/10 915 WATER 0 6.0 85/08/21 900 WATER 0.327999 6.8 85/09/18 900 WATER 0.327999 6.4 85/10/09 900 WATER 0.327999 7.9 85/11/20 850 WATER 0.327999 2.8 85/12/16 900 WATER 0.327999 11.8 86/01/09 900 WATER 0.327999 10.0 86/02/21 840 WATER 0.327999 9.6 86/03/12 850 WATER 0.327999 7.7 86/04/16 1350 WATER 0.327999 7.0 86/05/14 1220 WATER 0.327999 4.2 86/06/17 940 WATER 0.327999 5.2 86/07/28 1145 WATER 0.327999 5.4 86/08/27 1110 WATER 17.0 7.00 86/10/17 850 WATER 0.327999 6.2 86/11/12 1015 WATER 0.327999 5.9 86/12/04 945 WATER 0.327999 7.6 87/01/14 1020 WATER 0.327999 9.1 87/02/20 1000 WATER 0.327999 10.8 87/03/11 1420 WATER 0.327999 11.6 87/04/08 1330 WATER 0.327999 9.9 87/06/02 1300 WATER 0.327999 6.8 87/06/25 930 WATER 0.327999 6.0 87/10/01 1030 WATER 0.327999 6.8 87/10/26 1145 WATER 0.327999 6.2 87/11/17 87/12/10 88/01/29 88/02/23 88/03/21 88/04/22 88/05/26 88/06/14 88/07/07 88/08/11 88/09/08 88/11/14 88/12/12 89/01/18 89/02/02 89/03/27 89/04/05 89/05/24 89/06/15 89/07/11 89/08/15 89/09/26 89/10/26 89/11/28 89/12/13 90/01/24 90/02/21 90/03/15 90/04/26 930 WATER 0.327999 6.2 1100 WATER 0.327999 8.4 915 WATER 0.327999 11.8 1300 WATER 0.327999 9.9 1130 WATER 0.327999 12.0 920 WATER 0.327999 7.8 1410 WATER 0.327999 4.5 910 WATER 0.327999 6.8 1050 WATER 0.327999 6.3 1158 WATER 0.327999 6.0 945 WATER 0.327999 7.0 1045 WATER 0.327999 6.5 1425 WATER 0.327999 10.8 1315 WATER 0.327999 10.4 950 WATER 0.327999 4.4 945 WATER 0.327999 10.3 1450 WATER 0.327999 8.4 1305 WATER 0.327999 6.2 1215 WATER 0.327999 5.8 1330 BOTTOM 0.1 6.1 1310 BOTTOM 0.1 6.8 1420 WATER 0.327999 7.1 1400 WATER 0.327999 8.4 1350 WATER 0.327999 8.2 1425 WATER 0.327999 12.0 1405 WATER 0.327999 9.6 1440 WATER 0.327999 9.5 1205 WATER 0.327999 7.7 1130 WATER 0.327999 5.9 WHOLE EFFLUENT TOXICITY i'ESFING O(SELF.MONITORNoSUM MAR YI Mon, Sep 17, 1990 FACILrrY DURHAM CO. -TRIANGLE WWTP NPDESI: NC0026051 County: DURHAM Region: RRO PF: 3.0 7Q10: 0.00 IWC(%): 100.00 REOUIREMENT PERMIT CHRONIC LIMIT:99% Begin: 1/11/88 Frequency: Q P/P Months: FEB MAY AUG NOV SOC/JOC Req: YEAR JAN '86 - '87 PASS '88 (PAS,S) '89 PASS '90 PASS DURHAM-ENO RIVER W W7'P NPDESI: NC0026336 County: DURHAM Region: RRO PF: 2.50 7Q10:1S IWC(%):72.1 PERMIT CHRONIC LIMIT:72% Begin: 7/1/89 Frequency: Q P/F A Months: FEB MAY AUG NOV SOC/JOC Req: SOC 9/89-1/91-CHRONIC MONITORING AT 999e FOR '86 '87 - '88 69.5• '89 FAIL 90 PASS DURHAM-FARRINGTON RD. WWTP NPDESS: NC0047597 County: DURHAM Region: RRO PF:10.00 7Q10: 0.20 1 W C(%): 98.72 DURHAM-LICK CREEK WWTP NPDESI: NC0026310 County: DURHAM Region: RRO PF: 1.5 7Q10: 0.00 IWC(%): 100.00 PERMIT CHRONIC LLMIT:99%(rHRU EXP >10 MGD) Y '86 NR Begin 10/1089 Frequency: Q P/P 6 '87 28ChV Months: OCT JAN APR JUL '88 PASS? SOC/JOC Rrq: '89 PASS SOC-9/89-1/92 CHRONIC MONITORING AT 99% '90 FAIL PERMIT CHRONIC LIMIT:99% WHEN 1 S MOD '86 Begin: 10/187 Pmquency: Q P/P '87 - Mont s: OCT JAN APR JUL '88 37.63' SOC/JOC Rcq: '89 PASS SOC 989.1/91 CHRONIC MONITORING AT 99% '90 FAIL DURHAM-NORTHSIDE WWII) NPDESI: NC0023841 County: DURHAM Region: RRO PF: 10.0 7Q10: 0.075 I W C(%): 99.5 PERMIT CHRONIC LIMrT:99%(THRU EXP> 10 MGD) '86 Begin 10/10/89 Ptoqumey. Q P/P 6 Months: OCT JAN APR JUL SOC/JOC Req: SOC 989.1/91 CHRONIC MONITORING AT 99% '87 - '88 74.07• '89 (FAIL) 90 PASS EAGLE SNACKS, INC-002 NPDESI: NC0051195 County: MARTIN PF: 0.30 7Q10: 0.34 Region: WARO IWC(%):58.00 PERMIT CHRONIC LIMIT:58% Begin:4/1/90 Fmquencr Q P/P 6 Months: FEB MAY AUG NOV SOC/JOC Rcq: '86 '87 '88 '89 '90 EAVES OIL COMPANY NPDESI: NC0070424 County: PERSON PF: 0.007 7Q10: 0.00 Region: RRO IWC(%): 100.00 PERMIT CHRONIC LIMIT:99% Begin: 11/12/87 Pmqucncy: Q P/F Months: DEC MAR JUN SEP SOC/JOC Req: '86 '87 - '88 - '89 - 90 PAIL EAST BEND INDUSTRIAL PARK WWTP NPDESI: NO3064726 County: YADKIN PF: 0.01 7Q10: 0.05 IWC(%):23.66 Region: WSRO LETTER ACUTE TARGET:SIGNIF MORT REDUCf10N Begin: 10/1/89 Fmqucncy: Months: SOC/JOC Rcq: '86 '87 '88 '89 - 90 NR EASTERN FUELS/RED APPLE NPDES#: N 0073598 County:BERTIE PF:.0072 7Q10: 0.00 IWC(%>: 100.00 Regim: WARO PERMIT CHRONIC LIMIT:99% Begin:7/1888 Froqueacy: Q P/F Months: JAN APR JUL OCT SOC/JOC Req: '86 '88 - '89 - 90 - ECUSTA DIV. OP P.H. GLATFELTER NPDESI: NLO000078 County: TRANSYLVANIA Region: ARO PF: 27.5 7Q10: 157.00 I W C(%): 21.05 PERMIT CHRONIC LIMIT:21% (GRAB) Begin: 1/1/89 Frequency: Q P/P Months: JAN APR JUL OCT SOC/JOC Req: '86 '87 '88 '89 PASS 90 PAIL 0 2 consecutive failures = significant noncompliance 8 1985 daut available FEB PA- SS PASS NR FAIL FAD. NONE PA- SS FA- IL PA- SS NR FA- IL MAR PASS FAIL (F- AL) FAIL 90 (-) PASS PASS FAIL (F- AIL) PA- SS NR bt APB FAIL (PAIL) PASS LATE FAIL 56 NR PAIL PASS PASS (-) LATE FAIL LATE FAIL FA- IL FAIL MAY PA- SS PASS FAIL FAIL PASS FAIL NR PASS PAIL PA- SS LATE PASS FAIL LATE PASS PUN FA- IL PA- SS (-) PASS 80 (F- AIL) PASS FAIL PASS (-) FAIL PASS NR PASS NR FAIL PASS PASS (-) FAIL,bt PASS FAIL,bt PASS NONE FAIL FAIL bt PASS (-) PASS,bt PASS NONE (FAIL) FAIL,bt FAIL bt NR NR NR NR NR NR N LA- TE - PASS - - PASS 2P - PASS - - NR FAIL FAIL NR FAO. - (NR) NR - NR - NONE NONE PASS (NR ) - (-) - FAR - FAIL PA- SS FA- R, (NR) - (-) PASS FAIL PASS NOV FAIL NR - FAIL FAB. NONE FAIL NRFAIL (-) PASS LEGEND: PF=Permitted flow (MGM, 7Q l0.Receiving stream low Dow criterion (cfs). IWC%=Inatream waste concentration, Begin=Flit month required, Frequency -(Monitoring frequency): (Q-Quarterly; M-Monthly, BM•Bimanh)y; SA -Semiannually; A -Annually: O W D-Ody when discharging; 0-Discontinued monitoring requirement; IS -Conducting independent:tudyl, P/F.Pass/Fail chronic bioassay, Ac.Acute, Chr> Ouonic, A.quartedy monitoring o c eases to monthly upon single failure, (Data Notation): I (=Fat ead Minnow, • =Ceriodaphnia sp., myMyaid shrimp, Q, V=C)umic value, P.Mortality of stated percentage at highest concentration, at.Performed by DEM Aq Tox Group, bt=Bad test), (Reporting Notatinal: 1-.•=Don not required, NR=Nor reported, ( )-Ilcginning of Quarter), (Facility Aaivity Status): (I=Inactive, N=Newly baucQfo construct), H=Aaive but not discharging' 15 FAIL NR PASS NONE FA- IL PASS N NR PASS NONE (-) PASS FAD- (-1 NR PASS FAIL NR NR