NC0085359_wasteload allocation_20020716

/12/02 - TELECON W/ JON DYER
7/16/02 - TELECON W/ CURTIS WEAVER OF USGS. HAD MAILED REQUEST TO CURTIS FOR FLOWS ON TWELVE MILE
CREEK AT THE GAGING UEST BUT
HAD WORKED ON REQUEST FROM ON MCKIM AT HAND CREED FOR E NC/SC UNION CO. H. CURTIS E HAD
FAX ME A COPY OFT RECEIVED MY F FINISHED
REPORT.
DATA FOR TWELVE MILE CREEK AT GAGING STATION AT HIGHWAY 16. FULL PERIOD OF RECORD, 1961-2000
CLIMATIC YEARS.
DA=76.5 MI2
QA= 72.7 CFS
7Q10 = 0.1 CFS
30Q2 = 3.2 CFS
W7Q10 = 1.5 CFS
7Q2 = 1.4 CFS
DA AT NEXT ROAD CROSSING = 80.4 MI2
DA AT STATELINE IN THE RANGE OF 83-85 MI2, NOT SURE OF EXACT DA
AT 2500 FT DOWN OF THE GAGE, THERE ARE NO SIGNIFICANT TRIBS. THEREFORE, NUMBERS AT THE GAGE APPLY
TO DISCHARGE SITE. LL
HAVE A 7Q10 > O. IN THE LOAT 80'S, THE FUFLOW HAS LL OCCURRED
OF RECORD, 7Q10-=O 3ASION, CCFS. IN ES IN 1994, T8, HE FULL 1954. PERIODY IOF
RECORD, 7Q 10=0.07 CFS.
YIELDS FROM THE GAGING STATION:
QA YIELD = 72.7 CFS/76.5 MI2 = 0.95 CFS/MI2
S7Q10 YIELD = 0.1 CFS/76.5 MI2 = 0.0013 CFS/MI2
W7Q10 YIELD = 1.5 CFS/76.5 MI2 = 0,0196 CFS/M12
30Q2 YIELD = 3.2 CFS/76.5 MI2 = 0.0418 CFS/MI2
ESTIMATED FLOWS AT THE STATELINE, USING DRAINAGE AREAS IN THE RANGE OF 83-85 MI2
@ 83 MI2
QA FLOW = 83 MI2 * 0.95 CFS/M12 = 78.85 CFS
S7Q10 FLOW = 83 MI2 * 0.0013 CFS/MI2 = 0.1079 CFS
W7Q10 FLOW = 83 MI2 * 0.0196 CFS/MI2 = 1.627 CFS
30Q2 FLOW = 83 MI2 * 0.0418 CFS/MI2 = 3.469 CFS
@ 84 MI2
QA FLOW = 84 MI2 * 0.95 CFS/MI2 = 79.8 CFS
S7Q10 FLOW = 84 MI2 * 0.0013 CFS/MI2 = 0.1092 CFS
W7Q10 FLOW = 84 MI2 * 0.0196 CFS/MI2 = 1.646 CFS
30Q2 FLOW = 84 MI2 * 0.0418 CFS/MI2 = 3.511 CFS
@85MI2
QA FLOW = 85 MI2 * 0.95 CFS/MI2 = 80.75 CFS
S7Q10 FLOW = 85 MI2 * 0.0013 CFS/MI2 = 0.1105 CFS
W7Q10 FLOW = 85 MI2 * 0.0196 CFS/MI2 = 1.66 CFS
30Q2 FLOW = 85 MI2 * 0.0418 CFS/MI2 = 3.55 CFS
Union County -Twelve Mile Creek WWTP Fact Sheet
NPDES Renewal
Page 7