1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1993 TO SEPTEMBER 1994 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 --- --- --- --- --- --- --- --- --- --- 8.8 77 2 --- --- --- --- --- --- --- --- --- --- 7.7 243 3 --- --- --- --- --- --- --- --- --- --- 6.7 42 4 --- --- --- --- --- --- --- --- --- --- 21 24 5 --- --- --- --- --- --- --- --- --- --- 8.5 18 6 --- --- --- --- --- --- --- --- --- --- 6.8 22 7 --- --- --- --- --- --- --- --- --- 6.6 6.4 16 8 --- --- --- --- --- --- --- --- --- 5.5 6.0 14 9 --- --- --- --- --- --- --- --- --- 5.2 5.4 12 10 --- --- --- --- --- --- --- --- --- 4.2 4.8 11 11 --- --- --- --- --- --- --- --- --- 5.6 4.2 10 12 --- --- --- --- --- --- --- --- --- 6.2 3.7 9.6 13 --- --- --- --- --- --- --- --- --- 12 6.1 9.3 14 --- --- --- --- --- --- --- --- --- 11 6.4 9.0 15 --- --- --- --- --- --- --- --- --- 5.1 5.0 8.9 16 --- --- --- --- --- --- --- --- --- 7.6 90 8.7 17 --- --- --- --- --- --- --- --- --- 8.3 450 11 18 --- --- --- --- --- --- --- --- --- 4.4 40 15 19 --- --- --- --- --- --- --- --- --- 18 22 9.2 20 --- --- --- --- --- --- --- --- --- 38 17 8.5 21 --- --- --- --- --- --- --- --- --- 28 20 8.2 22 --- --- --- --- --- --- --- --- --- 63 17 7.9 23 --- --- --- --- --- --- --- --- --- 23 13 7.9 24 --- --- --- --- --- --- --- --- --- 100 12 12 25 --- --- --- --- --- --- --- --- --- 30 11 7.7 26 --- --- --- --- --- --- --- --- --- 15 10 7.5 27 --- --- --- --- --- --- --- --- --- 13 9.0 7.1 28 --- --- --- --- --- --- --- --- --- 34 8.2 7.2 29 --- --- --- --- --- --- --- --- --- 13 8.0 6.9 30 --- --- --- --- --- --- --- --- --- 9.7 7.5 6.6 31 --- --- --- --- --- --- --- --- --- 8.3 21 --- TOTAL --- --- --- --- --- --- --- --- --- --- 863.2 657.2 MEAN --- --- --- --- --- --- --- --- --- --- 27.8 21.9 MAX --- --- --- --- --- --- --- --- --- -- 450 243 MIN --- --- --- --- --- --- --- --- --- -- 3.7 6.6 CFSM --- --- --- --- --- --- --- --- --- --- 1.46 1.15 IN. --- --- --- --- --- --- --- --- --- --- 1.68 1.28 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 1994, BY WATER YEAR (WY) MEAN --- --- --- --- --- --- --- --- --- --- 27.8 21.9 MAX --- --- --- --- --- --- --- --- --- --- 27.8 21.9 (WY) --- --- --- --- --- --- --- --- --- --- 1994 1994 MIN --- --- --- --- --- --- --- --- --- --- 27.8 21.9 (WY) --- --- --- --- --- --- --- --- --- --- 1994 1994 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1994 TO SEPTEMBER 1995 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 8.0 24 16 15 23 48 19 12 10 8.0 6.3 36 2 9.9 15 14 13 21 35 19 19 10 8.4 6.5 27 3 22 13 13 12 20 32 18 12 14 7.6 6.1 19 4 11 13 70 12 19 49 18 13 8.2 7.6 6.2 12 5 9.0 13 152 12 18 39 18 13 8.5 7.5 6.1 8.5 6 8.5 13 60 29 18 54 18 11 23 7.4 5.9 8.0 7 8.5 13 31 185 18 39 20 11 10 7.2 6.1 7.7 8 8.5 13 19 55 17 73 17 11 8.4 7.1 41 7.5 9 9.6 13 15 36 16 49 16 11 26 6.9 7.8 7.3 10 26 16 16 23 22 36 15 14 45 6.9 7.3 7.3 11 12 12 21 19 29 32 15 11 28 7.9 7.2 23 12 19 11 15 15 20 30 16 11 28 6.7 6.8 8.4 13 90 11 14 12 18 28 16 9.8 16 6.6 6.5 7.9 14 33 11 13 319 18 27 15 15 12 6.5 6.6 8.2 15 24 11 12 460 41 26 15 13 10 6.3 6.4 7.9 16 18 11 12 94 294 25 15 10 9.5 6.4 6.3 21 17 16 11 12 60 246 25 15 9.7 8.8 6.8 6.2 9.0 18 14 11 12 36 147 24 15 9.3 8.5 6.6 6.0 8.0 19 14 10 11 31 67 24 14 19 8.3 6.6 5.9 7.6 20 21 10 10 29 46 24 13 9.9 8.4 6.4 7.7 7.5 21 16 22 11 25 37 24 26 9.0 9.3 8.1 9.0 7.5 22 23 14 119 23 32 23 16 8.5 16 7.5 6.7 7.5 23 25 11 104 22 29 22 26 8.4 8.3 6.5 6.3 10 24 17 11 36 21 27 22 22 8.5 12 6.2 7.2 9.0 25 16 10 25 20 26 21 16 8.1 12 5.9 7.0 7.9 26 15 16 20 20 25 21 14 8.0 13 5.8 145 7.8 27 14 32 17 19 31 21 14 7.9 8.2 7.9 1000 7.6 28 14 33 15 58 51 21 13 7.9 7.9 6.4 300 7.5 29 14 24 14 40 --- 20 13 7.9 7.9 6.3 280 7.4 30 14 20 13 29 --- 20 12 7.8 7.9 6.0 250 7.4 31 15 --- 18 25 --- 19 --- 8.8 --- 6.0 80 --- TOTAL 565.0 448 930 1769 1376 953 499 335.5 403.1 214.0 2256.1 328.4 MEAN 18.2 14.9 30.0 57.1 49.1 30.7 16.6 10.8 13.4 6.90 72.8 10.9 MAX 90 33 152 460 294 73 26 19 45 8.4 1000 36 MIN 8.0 10 10 12 16 19 12 7.8 7.9 5.8 5.9 7.3 CFSM 0.95 0.78 1.57 2.98 2.57 1.61 0.87 0.57 0.70 0.36 3.81 0.57 IN. 1.10 0.87 1.81 3.44 2.68 1.85 0.97 0.65 0.78 0.42 4.39 0.64 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 1995, BY WATER YEAR (WY) MEAN 18.2 14.9 30.0 57.1 49.1 30.7 16.6 10.8 13.4 6.90 50.3 16.4 MAX 18.2 14.9 30.0 57.1 49.1 30.7 16.6 10.8 13.4 6.90 72.8 21.9 (WY) 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 1994 MIN 18.2 14.9 30.0 57.1 49.1 30.7 16.6 10.8 13.4 6.90 27.8 10.9 (WY) 1995 1995 1995 1995 1995 1995 1995 1995 1995 1995 1994 1995 SUMMARY STATISTICS FOR 1995 WATER YEAR WATER YEARS 1994 - 1995 ANNUAL TOTAL 10077.1 ANNUAL MEAN 27.6 27.6 HIGHEST ANNUAL MEAN 27.6 1995 LOWEST ANNUAL MEAN 27.6 1995 HIGHEST DAILY MEAN 1000 Aug 27 1000 Aug 27 1995 LOWEST DAILY MEAN 5.8 Jul 26 3.7 Aug 12 1994 ANNUAL SEVEN-DAY MINIMUM 6.2 Jul 31 5.1 Aug 9 1994 MAXIMUM PEAK FLOW 0.00 Aug 27 0.00 Aug 27 1995 MAXIMUM PEAK STAGE 15.17 Aug 27 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 1.44 1.44 ANNUAL RUNOFF (INCHES) 19.61 19.62 10 PERCENT EXCEEDS 38 38 50 PERCENT EXCEEDS 14 13 90 PERCENT EXCEEDS 7.0 6.6 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 7.4 11 15 19 31 22 59 26 20 8.6 19 8.3 2 7.3 78 14 21 226 22 41 23 19 8.5 18 8.7 3 7.3 38 14 19 370 21 32 21 18 8.3 44 9.5 4 104 21 14 16 88 21 29 20 28 8.1 14 58 5 107 16 14 15 45 21 27 19 23 8.1 12 16 6 29 14 14 17 37 349 27 19 17 8.4 11 12 7 18 127 26 42 34 428 26 20 16 8.2 12 9.9 8 14 68 17 25 32 90 25 19 23 8.2 14 17 9 13 32 40 24 31 48 25 19 22 8.5 10 9.4 10 12 26 23 24 29 38 24 18 17 8.1 9.9 9.1 11 11 181 19 22 27 32 24 20 16 8.0 9.5 9.6 12 10 84 17 24 26 30 24 19 16 8.0 42 8.6 13 14 37 16 22 25 28 26 18 15 8.0 67 8.4 14 85 28 16 21 25 27 27 17 17 8.1 54 8.2 15 35 25 15 21 24 29 23 17 16 19 20 8.1 16 19 22 15 20 24 28 22 17 14 10 15 36 17 15 19 15 19 24 30 22 16 13 8.5 13 70 18 12 18 17 22 24 26 23 15 12 8.2 12 19 19 11 17 45 93 23 175 26 15 12 8.0 11 14 20 11 17 26 37 66 75 48 15 19 11 10 12 21 10 16 21 28 37 32 52 14 13 13 9.8 12 22 9.4 16 19 24 30 28 32 13 12 8.3 10 17 23 9.1 15 17 22 28 26 27 13 11 8.0 9.3 11 24 9.2 21 16 29 25 25 25 12 11 32 8.5 10 25 9.1 18 16 24 24 27 23 154 11 63 8.7 9.9 26 8.9 16 15 24 24 26 31 44 10 66 9.7 11 27 10 16 15 584 24 27 24 46 9.8 18 9.7 11 28 17 15 15 168 24 68 22 155 9.6 16 8.5 21 29 9.8 15 14 41 23 42 22 36 9.0 14 9.8 19 30 9.1 15 14 35 --- 33 52 26 8.8 13 8.5 18 31 12 --- 15 41 --- 38 --- 22 --- 12 8.4 --- TOTAL 655.6 1042 569 1543 1450 1912 890 908 458.2 443.1 518.3 491.7 MEAN 21.1 34.7 18.4 49.8 50.0 61.7 29.7 29.3 15.3 14.3 16.7 16.4 MAX 107 181 45 584 370 428 59 155 28 66 67 70 MIN 7.3 11 14 15 23 21 22 12 8.8 8.0 8.4 8.1 CFSM 1.11 1.82 0.96 2.60 2.62 3.23 1.55 1.53 0.80 0.75 0.87 0.86 IN. 1.28 2.03 1.11 3.00 2.82 3.72 1.73 1.77 0.89 0.86 1.01 0.96 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 1996, BY WATER YEAR (WY) MEAN 19.7 24.8 24.2 53.4 49.6 46.2 23.1 20.1 14.4 10.6 39.1 16.4 MAX 21.1 34.7 30.0 57.1 50.0 61.7 29.7 29.3 15.3 14.3 72.8 21.9 (WY) 1996 1996 1995 1995 1996 1996 1996 1996 1996 1996 1995 1994 MIN 18.2 14.9 18.4 49.8 49.1 30.7 16.6 10.8 13.4 6.90 16.7 10.9 (WY) 1995 1995 1996 1996 1995 1995 1995 1995 1995 1995 1996 1995 SUMMARY STATISTICS FOR 1995 CALENDAR YEAR FOR 1996 WATER YEAR WATER YEARS 1994 - 1996 ANNUAL TOTAL 10880.9 ANNUAL MEAN 29.7 28.7 HIGHEST ANNUAL MEAN 29.7 1996 LOWEST ANNUAL MEAN 27.6 1995 HIGHEST DAILY MEAN 584 Jan 27 1000 Aug 27 1995 LOWEST DAILY MEAN 7.3 Oct 2 3.7 Aug 12 1994 ANNUAL SEVEN-DAY MINIMUM 8.1 Jul 8 5.1 Aug 9 1994 MAXIMUM PEAK FLOW 616 Mar 7 0.00 Aug 27 1995 MAXIMUM PEAK STAGE 8.98 Mar 7 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 1.55 1.50 ANNUAL RUNOFF (INCHES) 21.17 20.37 10 PERCENT EXCEEDS 45 41 50 PERCENT EXCEEDS 19 16 90 PERCENT EXCEEDS 9.1 7.5 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 21 9.6 236 11 20 341 21 29 104 15 17 7.8 2 13 16 75 11 18 73 20 24 40 14 15 7.8 3 12 11 29 10 18 56 20 175 21 12 13 7.7 4 11 10 22 10 18 43 20 56 18 11 12 8.0 5 9.9 10 19 18 27 37 20 34 17 11 12 7.6 6 9.6 9.8 18 12 19 42 23 28 15 10 11 7.6 7 11 11 19 11 18 31 22 24 16 10 12 7.5 8 20 65 17 11 31 28 19 22 15 10 12 7.5 9 12 22 14 184 21 28 18 21 15 10 11 7.8 10 11 15 13 58 20 28 17 19 14 12 12 9.1 11 10 13 13 31 19 27 18 19 15 13 11 11 12 9.8 12 30 24 17 25 27 18 22 10 11 8.3 13 9.5 12 63 21 64 26 20 18 85 9.3 10 8.0 14 9.4 11 24 20 92 38 18 17 30 9.1 10 7.9 15 9.4 10 18 18 151 26 18 16 86 8.6 9.5 7.8 16 10 10 16 47 46 24 17 15 25 8.5 9.0 7.8 17 9.4 10 18 24 32 23 17 15 21 8.4 8.6 7.7 18 9.3 11 14 20 27 23 16 15 18 9.4 8.4 7.8 19 9.4 13 19 18 24 39 16 15 16 8.3 8.4 7.9 20 9.7 11 14 17 22 34 16 15 15 8.2 8.4 7.7 21 9.6 14 13 16 26 27 15 14 56 8.3 8.5 7.6 22 9.6 17 13 16 28 25 31 13 47 8.2 8.3 7.5 23 9.4 12 13 16 20 23 29 13 24 120 8.1 7.6 24 9.3 11 13 70 19 22 26 13 18 198 8.1 28 25 9.3 10 12 180 18 23 18 16 16 29 8.1 47 26 9.4 73 11 47 19 26 17 16 14 20 8.1 14 27 9.6 21 12 31 32 22 28 14 22 17 8.1 10 28 9.9 16 11 30 373 23 108 19 23 15 8.0 14 29 9.8 14 11 25 --- 44 127 14 17 16 7.9 13 30 9.8 15 11 23 --- 26 39 16 15 38 7.8 9.0 31 9.4 --- 11 21 --- 24 --- 29 --- 33 7.8 --- TOTAL 331.5 495.4 822 1051 1239 1277 821 772 860 710.3 310.1 318.0 MEAN 10.7 16.5 26.5 33.9 44.2 41.2 27.4 24.9 28.7 22.9 10.0 10.6 MAX 21 73 236 184 373 341 127 175 104 198 17 47 MIN 9.3 9.6 11 10 17 22 15 13 14 8.2 7.8 7.5 CFSM 0.56 0.86 1.39 1.77 2.31 2.15 1.43 1.30 1.50 1.20 0.52 0.55 IN. 0.64 0.96 1.60 2.04 2.41 2.48 1.60 1.50 1.67 1.38 0.60 0.62 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 1997, BY WATER YEAR (WY) MEAN 16.7 22.1 25.0 46.9 47.8 44.5 24.6 21.7 19.1 14.7 31.8 15.0 MAX 21.1 34.7 30.0 57.1 50.0 61.7 29.7 29.3 28.7 22.9 72.8 21.9 (WY) 1996 1996 1995 1995 1996 1996 1996 1996 1997 1997 1995 1994 MIN 10.7 14.9 18.4 33.9 44.2 30.7 16.6 10.8 13.4 6.90 10.0 10.6 (WY) 1997 1995 1996 1997 1997 1995 1995 1995 1995 1995 1997 1997 SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1994 - 1997 ANNUAL TOTAL 9007.3 ANNUAL MEAN 24.7 27.3 HIGHEST ANNUAL MEAN 29.7 1996 LOWEST ANNUAL MEAN 24.7 1997 HIGHEST DAILY MEAN 373 Feb 28 1000 Aug 27 1995 LOWEST DAILY MEAN 7.5 Sep 7 3.7 Aug 12 1994 ANNUAL SEVEN-DAY MINIMUM 7.7 Sep 2 5.1 Aug 9 1994 MAXIMUM PEAK FLOW 664 Mar 1 664 Mar 1 1997 MAXIMUM PEAK STAGE 9.27 Mar 1 15.17 Aug 27 1995 INSTANTANEOUS LOW FLOW 7.4 Sep 7 7.4 Sep 7 1997 ANNUAL RUNOFF (CFSM) 1.29 1.43 ANNUAL RUNOFF (INCHES) 17.52 19.43 10 PERCENT EXCEEDS 39 41 50 PERCENT EXCEEDS 16 16 90 PERCENT EXCEEDS 8.4 7.9 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 8.4 20 16 15 27 35 31 77 20 15 11 7.8 2 8.4 47 14 14 26 31 25 44 31 14 10 7.6 3 8.4 19 15 14 293 28 139 37 23 15 10 19 4 8.4 15 41 13 356 27 124 34 21 16 9.8 24 5 8.3 13 20 13 80 26 48 32 44 19 9.7 11 6 8.3 13 16 13 47 26 36 30 26 15 9.3 9.6 7 8.3 13 15 24 39 32 31 49 22 14 9.2 9.5 8 8.2 16 15 563 34 448 29 56 20 14 14 13 9 8.2 12 18 68 31 301 518 34 21 14 12 12 10 8.2 11 21 37 29 63 68 137 31 13 12 9.1 11 8.2 11 17 e31 32 42 40 144 28 12 11 8.8 12 8.2 12 15 27 31 36 34 41 21 13 11 8.5 13 8.4 23 14 25 28 33 32 35 20 13 12 8.3 14 8.4 61 14 24 27 31 38 32 19 13 12 8.1 15 8.6 23 14 63 e26 30 32 30 19 12 29 8.0 16 8.3 17 14 123 67 30 31 28 20 12 42 8.0 17 8.3 15 14 62 152 29 261 27 18 13 16 7.7 18 8.3 14 13 38 61 31 59 26 18 12 13 7.7 19 40 13 12 50 41 44 108 e26 23 e11 12 8.0 20 12 13 12 35 35 33 69 e25 22 e13 11 7.8 21 9.4 52 12 30 31 30 45 24 19 12 11 84 22 9.7 242 62 47 30 28 92 24 21 10 e10 29 23 8.9 40 26 78 64 27 71 23 23 10 10 14 24 12 25 218 42 37 29 e51 23 18 11 9.7 10 25 20 21 175 33 31 26 e40 23 19 18 9.2 9.6 26 283 19 39 29 29 26 e35 22 17 17 e8.8 9.0 27 203 17 36 203 82 e26 33 27 17 13 8.1 8.7 28 28 16 26 88 45 25 32 25 16 13 8.0 9.0 29 19 15 22 43 --- 25 31 22 16 12 8.0 9.6 30 16 19 18 34 --- 24 141 22 15 12 7.7 16 31 14 --- 16 30 --- 27 --- 21 --- 11 e7.8 --- TOTAL 824.8 847 980 1909 1811 1649 2324 1200 648 412 374.3 402.4 MEAN 26.6 28.2 31.6 61.6 64.7 53.2 77.5 38.7 21.6 13.3 12.1 13.4 MAX 283 242 218 563 356 448 518 144 44 19 42 84 MIN 8.2 11 12 13 26 24 25 21 15 10 7.7 7.6 CFSM 1.39 1.48 1.65 3.22 3.38 2.78 4.05 2.02 1.13 0.70 0.63 0.70 IN. 1.60 1.65 1.91 3.71 3.52 3.21 4.52 2.33 1.26 0.80 0.73 0.78 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 1998, BY WATER YEAR (WY) MEAN 19.2 23.6 26.6 50.6 52.0 46.7 37.8 25.9 19.7 14.3 27.9 14.7 MAX 26.6 34.7 31.6 61.6 64.7 61.7 77.5 38.7 28.7 22.9 72.8 21.9 (WY) 1998 1996 1998 1998 1998 1996 1998 1998 1997 1997 1995 1994 MIN 10.7 14.9 18.4 33.9 44.2 30.7 16.6 10.8 13.4 6.90 10.0 10.6 (WY) 1997 1995 1996 1997 1997 1995 1995 1995 1995 1995 1997 1997 SUMMARY STATISTICS FOR 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1994 - 1998 ANNUAL TOTAL 13381.5 ANNUAL MEAN 36.7 29.7 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 24.7 1997 HIGHEST DAILY MEAN 563 Jan 8 1000 Aug 27 1995 LOWEST DAILY MEAN 7.6 Sep 2 3.7 Aug 12 1994 ANNUAL SEVEN-DAY MINIMUM 7.9 Aug 27 5.1 Aug 9 1994 MAXIMUM PEAK FLOW 906 Jan 8 1000000000000 Aug 27 1995 MAXIMUM PEAK STAGE 10.57 Jan 8 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 1.92 1.55 ANNUAL RUNOFF (INCHES) 26.04 21.08 10 PERCENT EXCEEDS 62 45 50 PERCENT EXCEEDS 21 16 90 PERCENT EXCEEDS 8.8 8.1 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 13 11 11 16 208 16 149 38 6.4 6.2 6.6 4.0 2 9.2 11 11 18 100 15 41 22 7.1 5.8 7.5 4.6 3 8.7 23 12 170 39 19 28 18 16 5.6 5.5 3.8 4 97 13 11 44 31 17 23 16 9.2 5.4 5.2 3.4 5 24 12 11 28 24 15 20 17 8.1 14 5.1 3.4 6 18 12 11 23 21 16 18 23 7.0 16 4.9 4.3 7 18 11 11 22 20 17 18 33 6.9 72 4.5 4.0 8 25 11 12 21 20 15 18 20 6.0 85 4.4 3.4 9 15 12 14 20 19 19 18 16 5.4 17 4.5 6.0 10 13 13 11 18 28 18 16 14 23 16 4.6 7.5 11 12 17 11 17 20 16 16 13 19 14 4.5 4.0 12 12 13 11 17 19 15 15 14 7.7 18 4.3 3.6 13 12 12 55 16 17 15 14 13 7.5 17 4.0 3.4 14 11 13 25 16 16 23 14 12 6.0 12 3.8 3.3 15 11 27 17 20 16 20 16 12 6.6 11 3.5 3.2 16 11 32 20 16 16 16 15 11 35 10 3.8 2.9 17 11 27 15 17 16 16 13 12 19 9.6 3.7 2.6 18 11 17 14 23 33 15 13 10 8.8 9.1 3.3 2.5 19 11 15 14 18 68 15 13 9.7 6.9 8.8 3.2 2.6 20 12 14 16 17 41 14 13 9.2 6.5 13 3.6 2.9 21 11 13 15 17 27 25 13 9.0 6.5 13 3.6 7.3 22 10 13 14 16 22 19 12 8.8 8.4 8.9 3.2 12 23 10 13 17 52 20 16 12 8.6 6.7 8.0 17 4.4 24 10 14 125 61 19 16 11 9.1 6.7 7.2 34 3.7 25 10 12 54 29 19 15 12 7.7 20 6.9 9.3 3.6 26 11 12 29 23 18 18 12 8.1 21 6.6 6.4 3.5 27 10 12 22 21 17 18 16 8.1 9.4 6.7 5.5 21 28 10 11 21 20 18 15 22 7.6 11 8.2 4.9 23 29 10 11 27 19 --- 15 30 7.2 7.4 6.9 4.7 47 30 10 11 19 20 --- 15 117 6.9 6.5 6.7 4.5 16 31 11 --- 17 23 --- 22 --- 6.7 --- 5.9 4.0 --- TOTAL 467.9 438 673 858 932 526 748 420.7 321.7 450.5 187.6 216.9 MEAN 15.1 14.6 21.7 27.7 33.3 17.0 24.9 13.6 10.7 14.5 6.05 7.23 MAX 97 32 125 170 208 25 149 38 35 85 34 47 MIN 8.7 11 11 16 16 14 11 6.7 5.4 5.4 3.2 2.5 CFSM 0.79 0.76 1.14 1.45 1.74 0.89 1.30 0.71 0.56 0.76 0.32 0.38 IN. 0.91 0.85 1.31 1.67 1.81 1.02 1.46 0.82 0.63 0.88 0.36 0.42 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 1999, BY WATER YEAR (WY) MEAN 18.4 21.8 25.6 46.0 48.3 40.8 35.2 23.5 17.9 14.4 24.2 13.4 MAX 26.6 34.7 31.6 61.6 64.7 61.7 77.5 38.7 28.7 22.9 72.8 21.9 (WY) 1998 1996 1998 1998 1998 1996 1998 1998 1997 1997 1995 1994 MIN 10.7 14.6 18.4 27.7 33.3 17.0 16.6 10.8 10.7 6.90 6.05 7.23 (WY) 1997 1999 1996 1999 1999 1999 1995 1995 1999 1995 1999 1999 SUMMARY STATISTICS FOR 1998 CALENDAR YEAR FOR 1999 WATER YEAR WATER YEARS 1994 - 1999 ANNUAL TOTAL 6240.3 ANNUAL MEAN 17.1 27.2 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 17.1 1999 HIGHEST DAILY MEAN 208 Feb 1 1000 Aug 27 1995 LOWEST DAILY MEAN 2.5 Sep 18 2.5 Sep 18 1999 ANNUAL SEVEN-DAY MINIMUM 2.9 Sep 14 2.9 Sep 14 1999 MAXIMUM PEAK FLOW 394 Feb 1 15 Aug 27 1995 MAXIMUM PEAK STAGE 7.25 Feb 1 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 0.894 1.42 ANNUAL RUNOFF (INCHES) 12.14 19.30 10 PERCENT EXCEEDS 26 41 50 PERCENT EXCEEDS 13 16 90 PERCENT EXCEEDS 4.5 7.7 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 7.4 13 15 12 24 14 17 15 6.5 5.5 7.1 4.4 2 6.3 30 15 11 21 14 26 14 6.2 4.7 6.1 4.0 3 6.0 11 14 13 19 14 41 14 6.0 4.4 6.8 4.2 4 135 9.1 13 17 18 24 26 21 6.0 3.9 18 9.2 5 51 9.3 12 14 16 18 20 15 7.2 3.7 12 6.5 6 14 9.3 39 13 16 16 19 13 7.4 3.4 6.2 4.6 7 11 8.8 18 12 16 15 18 13 6.0 3.3 6.1 4.4 8 9.9 8.4 14 11 15 14 17 13 6.1 3.0 5.5 4.4 9 9.1 8.6 14 14 15 15 17 13 5.8 3.0 5.0 3.8 10 178 8.6 16 167 15 14 16 12 5.2 3.0 7.5 3.6 11 544 8.9 14 41 14 26 16 11 5.0 e2.9 5.1 3.4 12 36 9.9 13 25 25 28 16 11 5.0 4.9 4.3 3.3 13 18 8.5 17 21 19 17 16 11 4.9 16 3.9 3.1 14 15 8.4 55 17 109 15 34 10 4.8 12 3.8 3.9 15 13 8.2 22 16 32 14 55 10 4.6 9.3 3.8 2.9 16 11 8.2 17 16 23 74 29 10 4.3 5.3 3.5 2.5 17 10 7.9 15 15 20 69 21 10 4.6 4.5 3.3 2.5 18 10 11 13 18 20 27 19 10 12 4.1 3.2 2.6 19 11 9.9 13 16 18 22 18 9.8 5.5 3.8 3.0 5.1 20 15 7.7 14 20 16 526 17 9.6 8.9 3.6 2.9 3.4 21 14 7.6 35 15 17 70 16 9.5 9.5 3.1 5.1 21 22 10 7.7 24 15 16 38 15 9.2 6.2 6.0 3.8 8.6 23 9.0 7.9 17 54 16 29 15 8.7 5.3 16 3.3 33 24 8.7 8.0 15 39 15 26 24 9.3 4.8 43 3.1 6.6 25 9.1 16 13 35 15 23 30 8.8 3.9 9.1 2.9 26 26 9.6 307 13 25 14 21 18 8.3 4.1 6.9 4.0 20 27 9.3 37 13 21 17 21 16 8.0 4.1 5.9 2.9 7.2 28 9.0 21 12 19 16 20 18 7.8 4.8 5.6 3.1 6.1 29 9.1 17 12 19 15 19 17 7.6 14 5.2 2.7 5.2 30 9.1 16 12 38 --- 19 18 8.0 6.9 4.7 2.6 5.0 31 9.6 --- 12 33 --- 18 --- 7.2 --- 25 5.4 --- TOTAL 1217.2 649.9 541 802 612 1280 645 337.8 185.6 234.8 156.0 220.5 MEAN 39.3 21.7 17.5 25.9 21.1 41.3 21.5 10.9 6.19 7.57 5.03 7.35 MAX 544 307 55 167 109 526 55 21 14 43 18 33 MIN 6.0 7.6 12 11 14 14 15 7.2 3.9 2.9 2.6 2.5 CFSM 2.05 1.13 0.91 1.35 1.10 2.16 1.12 0.57 0.32 0.40 0.26 0.38 IN. 2.37 1.26 1.05 1.56 1.19 2.49 1.25 0.66 0.36 0.46 0.30 0.43 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2000, BY WATER YEAR (WY) MEAN 21.8 21.8 24.3 42.6 43.6 40.8 32.9 21.4 16.0 13.3 21.5 12.5 MAX 39.3 34.7 31.6 61.6 64.7 61.7 77.5 38.7 28.7 22.9 72.8 21.9 (WY) 2000 1996 1998 1998 1998 1996 1998 1998 1997 1997 1995 1994 MIN 10.7 14.6 17.5 25.9 21.1 17.0 16.6 10.8 6.19 6.90 5.03 7.23 (WY) 1997 1999 2000 2000 2000 1999 1995 1995 2000 1995 2000 1999 SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1994 - 2000 ANNUAL TOTAL 6881.8 ANNUAL MEAN 18.8 25.8 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 17.1 1999 HIGHEST DAILY MEAN 544 Oct 11 1000 Aug 27 1995 LOWEST DAILY MEAN 2.5 Sep 16 2.5 Sep 18 1999 ANNUAL SEVEN-DAY MINIMUM 3.0 Sep 12 2.9 Sep 14 1999 MAXIMUM PEAK FLOW 1000 Oct 11 15 Aug 27 1995 MAXIMUM PEAK STAGE 11.00 Oct 11 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 0.983 1.35 ANNUAL RUNOFF (INCHES) 13.39 18.31 10 PERCENT EXCEEDS 26 39 50 PERCENT EXCEEDS 12 15 90 PERCENT EXCEEDS 3.9 6.9 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 4.9 4.4 8.5 8.1 11 12 27 9.6 73 6.2 11 4.1 2 5.0 6.8 8.4 8.1 11 12 23 9.3 25 41 10 35 3 4.9 4.7 8.1 8.1 10 13 24 9.7 13 22 9.4 33 4 4.7 4.5 7.9 8.4 10 45 22 8.7 11 13 15 150 5 4.5 4.5 7.7 8.2 9.9 21 19 8.0 9.7 27 11 20 6 4.3 4.9 7.5 8.1 9.8 16 19 7.8 8.7 9.5 8.9 11 7 4.2 5.0 7.4 7.9 9.7 15 17 7.9 8.6 7.5 8.0 9.1 8 3.8 5.1 7.2 19 9.4 13 16 8.0 12 7.4 7.3 7.9 9 3.9 27 7.0 12 9.5 13 16 8.3 13 8.3 6.9 8.2 10 4.1 21 7.0 9.8 13 12 15 8.3 9.6 7.4 6.6 13 11 4.4 7.1 6.9 9.2 9.9 11 15 8.4 8.8 6.8 6.4 8.2 12 4.2 5.8 7.1 22 10 27 14 8.0 8.2 6.0 6.2 6.9 13 4.1 5.8 6.9 13 10 43 14 7.7 7.8 6.1 11 6.3 14 3.9 8.6 9.9 11 12 19 13 6.9 7.3 5.6 9.8 9.5 15 3.9 6.4 8.4 10 11 110 15 6.9 8.4 5.0 6.7 9.5 16 3.9 6.0 34 9.5 10 42 14 6.4 6.9 4.9 6.1 6.2 17 4.0 9.2 67 9.1 24 26 12 6.6 6.3 4.8 5.9 5.9 18 4.1 6.8 18 11 13 20 12 6.3 5.6 4.6 6.1 5.6 19 4.3 13 16 89 12 18 12 5.5 5.8 5.0 5.5 5.5 20 4.4 14 13 78 11 133 12 5.7 5.7 77 5.3 5.9 21 4.5 9.3 12 27 11 74 11 8.4 5.5 17 5.0 5.7 22 4.6 7.6 11 20 23 34 11 20 8.0 9.9 4.5 5.2 23 4.9 6.8 10 17 15 25 11 12 11 8.2 4.2 5.0 24 4.9 6.4 10 16 12 21 11 7.6 5.8 9.4 3.9 32 25 5.6 68 9.4 14 23 19 15 9.0 8.2 e310 3.7 11 26 4.9 21 9.2 13 18 18 11 8.6 10 237 3.6 7.0 27 4.8 13 9.6 13 14 16 11 6.9 6.4 24 3.5 6.3 28 4.6 10 9.6 12 13 15 10 9.8 5.6 18 3.5 5.9 29 4.5 9.2 9.4 12 --- 139 9.4 13 6.1 15 3.6 5.4 30 5.7 9.0 8.7 16 --- 146 9.3 7.9 5.3 14 3.6 5.2 31 5.5 --- 8.1 12 --- 38 --- 6.6 --- 11 3.9 --- TOTAL 140.0 330.9 370.9 531.5 355.2 1166 440.7 263.8 326.3 948.6 206.1 449.5 MEAN 4.52 11.0 12.0 17.1 12.7 37.6 14.7 8.51 10.9 30.6 6.65 15.0 MAX 5.7 68 67 89 24 146 27 20 73 310 15 150 MIN 3.8 4.4 6.9 7.9 9.4 11 9.3 5.5 5.3 4.6 3.5 4.1 CFSM 0.24 0.58 0.63 0.90 0.66 1.97 0.77 0.45 0.57 1.60 0.35 0.78 IN. 0.27 0.64 0.72 1.03 0.69 2.27 0.86 0.51 0.63 1.85 0.40 0.87 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2001, BY WATER YEAR (WY) MEAN 19.4 20.2 22.5 39.0 39.3 40.4 30.3 19.5 15.3 15.7 19.6 12.9 MAX 39.3 34.7 31.6 61.6 64.7 61.7 77.5 38.7 28.7 30.6 72.8 21.9 (WY) 2000 1996 1998 1998 1998 1996 1998 1998 1997 2001 1995 1994 MIN 4.52 11.0 12.0 17.1 12.7 17.0 14.7 8.51 6.19 6.90 5.03 7.23 (WY) 2001 2001 2001 2001 2001 1999 2001 2001 2000 1995 2000 1999 SUMMARY STATISTICS FOR 2000 CALENDAR YEAR FOR 2001 WATER YEAR WATER YEARS 1994 - 2001 ANNUAL TOTAL 5529.5 ANNUAL MEAN 15.1 24.2 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 15.1 2001 HIGHEST DAILY MEAN 310 Jul 25 1000 Aug 27 1995 LOWEST DAILY MEAN 3.5 Aug 27 2.5 Sep 18 1999 ANNUAL SEVEN-DAY MINIMUM 3.6 Aug 24 2.9 Sep 14 1999 MAXIMUM PEAK FLOW 0.00 Jul 25 15 Aug 27 1995 MAXIMUM PEAK STAGE 11.06 Jul 25 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 0.792 1.27 ANNUAL RUNOFF (INCHES) 10.76 17.23 10 PERCENT EXCEEDS 23 37 50 PERCENT EXCEEDS 9.3 14 90 PERCENT EXCEEDS 4.7 6.2 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 5.1 5.8 8.8 8.0 16 11 32 25 6.6 11 1.7 2.9 2 4.9 5.7 8.4 8.0 14 35 22 13 6.3 6.4 1.5 2.5 3 4.8 5.7 8.4 8.5 13 34 18 11 6.1 4.6 1.3 2.2 4 4.8 5.5 8.0 8.3 13 19 16 103 6.5 6.1 1.2 2.1 5 4.6 6.1 8.0 8.0 16 15 16 28 11 4.1 1.2 1.7 6 9.9 5.6 7.9 38 22 14 16 17 6.8 3.5 1.1 1.5 7 6.1 5.4 8.1 18 70 13 14 14 6.2 3.1 0.99 1.2 8 5.0 5.5 7.8 12 39 13 13 12 5.7 3.3 0.84 1.1 9 5.0 5.5 7.7 11 23 13 14 11 5.4 2.8 0.87 1.1 10 5.1 5.3 22 10 19 13 15 12 5.2 2.5 0.76 1.1 11 5.2 5.3 32 9.8 17 12 13 16 5.0 4.0 0.83 1.0 12 5.3 5.5 13 9.1 16 40 13 11 4.8 3.6 0.87 0.82 13 6.0 6.1 12 9.0 15 46 14 23 4.7 5.0 0.87 0.88 14 26 5.4 11 8.8 16 25 13 20 4.7 4.0 0.74 33 15 10 5.5 10 8.7 14 20 13 12 4.6 4.3 1.2 e250 16 6.7 5.4 9.5 8.4 13 17 12 11 4.2 8.7 37 e300 17 6.1 5.5 13 8.2 13 20 11 10 4.0 3.7 5.6 22 18 6.0 5.4 31 8.1 12 19 11 12 4.0 2.7 7.6 19 19 6.0 5.1 14 89 12 16 11 9.8 3.9 2.5 2.9 16 20 6.0 5.3 11 111 14 16 9.9 9.2 3.7 2.1 2.4 12 21 5.8 5.0 11 41 13 33 9.7 9.3 3.5 2.0 2.2 14 22 6.0 4.8 11 26 12 19 9.4 8.9 3.4 1.9 1.9 13 23 5.9 7.7 9.6 79 12 16 9.0 8.7 4.1 1.9 1.9 10 24 6.1 79 13 73 11 15 9.0 8.4 4.5 2.5 1.7 8.9 25 7.4 15 9.3 197 11 14 10 8.0 3.9 23 6.6 8.9 26 5.9 11 10 42 11 16 8.9 7.6 4.3 4.2 4.8 14 27 5.4 9.8 9.5 28 11 16 8.7 7.4 5.0 3.0 2.8 23 28 5.4 9.2 8.7 23 11 14 8.9 7.1 4.1 2.5 2.9 12 29 6.1 8.9 8.1 20 --- 16 8.7 7.1 3.8 2.2 2.6 9.6 30 5.8 9.2 7.9 17 --- 39 8.8 6.9 4.5 2.0 2.7 8.6 31 5.8 --- 8.1 16 --- 66 --- 7.0 --- 1.9 2.9 --- TOTAL 204.2 270.2 357.8 961.9 479 675 388.0 466.4 150.5 135.1 104.47 794.10 MEAN 6.59 9.01 11.5 31.0 17.1 21.8 12.9 15.0 5.02 4.36 3.37 26.5 MAX 26 79 32 197 70 66 32 103 11 23 37 300 MIN 4.6 4.8 7.7 8.0 11 11 8.7 6.9 3.4 1.9 0.74 0.82 CFSM 0.34 0.47 0.60 1.62 0.89 1.14 0.68 0.79 0.26 0.23 0.18 1.38 IN. 0.40 0.53 0.70 1.87 0.93 1.31 0.75 0.91 0.29 0.26 0.20 1.55 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2002, BY WATER YEAR (WY) MEAN 17.8 18.8 21.1 38.0 36.5 38.1 28.1 19.0 14.0 14.3 17.8 14.4 MAX 39.3 34.7 31.6 61.6 64.7 61.7 77.5 38.7 28.7 30.6 72.8 26.5 (WY) 2000 1996 1998 1998 1998 1996 1998 1998 1997 2001 1995 2002 MIN 4.52 9.01 11.5 17.1 12.7 17.0 12.9 8.51 5.02 4.36 3.37 7.23 (WY) 2001 2002 2002 2001 2001 1999 2002 2001 2002 2002 2002 1999 SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1994 - 2002 ANNUAL TOTAL 5519.9 4986.67 ANNUAL MEAN 15.1 13.7 22.9 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 13.7 2002 HIGHEST DAILY MEAN 310 Jul 25 300 Sep 16 1000 Aug 27 1995 LOWEST DAILY MEAN 3.5 Aug 27 0.74 Aug 14 0.74 Aug 14 2002 ANNUAL SEVEN-DAY MINIMUM 3.6 Aug 24 0.83 Aug 8 0.83 Aug 8 2002 MAXIMUM PEAK FLOW 1000000 Sep 16 15 Aug 27 1995 MAXIMUM PEAK STAGE 11.74 Sep 16 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 0.791 0.715 1.20 ANNUAL RUNOFF (INCHES) 10.74 9.70 16.29 10 PERCENT EXCEEDS 23 23 36 50 PERCENT EXCEEDS 9.4 8.7 13 90 PERCENT EXCEEDS 5.3 2.2 5.5 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 8.1 8.5 10 34 21 46 33 25 21 60 104 12 2 7.6 7.7 10 25 19 36 32 38 21 500 168 11 3 7.1 7.3 10 28 17 28 31 34 56 57 59 11 4 6.9 7.5 12 21 23 25 31 27 43 29 31 11 5 6.6 28 163 20 18 24 38 39 25 24 23 11 6 6.4 76 47 20 17 154 36 159 32 22 19 10 7 6.2 19 26 19 47 51 291 119 102 37 18 10 8 6.1 14 21 18 24 35 90 52 69 21 18 10 9 6.1 11 18 18 20 29 74 38 33 19 16 9.7 10 6.4 11 18 17 27 26 121 33 26 19 16 9.1 11 6.3 73 94 16 21 24 80 32 33 20 17 8.7 12 6.0 163 31 16 18 23 49 30 36 28 16 8.4 13 9.5 46 133 16 18 23 40 27 55 24 16 8.3 14 6.6 24 58 16 18 22 35 26 27 22 15 8.7 15 42 18 30 15 19 25 33 26 24 17 18 9.0 16 107 104 25 15 41 37 33 25 22 16 22 8.2 17 19 71 21 16 36 27 34 77 21 15 22 7.9 18 12 30 19 15 25 92 65 36 21 14 26 7.7 19 9.6 24 18 14 22 136 38 34 99 19 78 7.5 20 8.4 19 75 15 21 e700 34 28 56 17 22 7.5 21 9.0 17 28 15 20 137 42 29 28 14 21 7.3 22 8.0 15 22 18 124 63 39 387 23 27 20 15 23 7.4 13 19 16 63 50 31 180 21 22 16 41 24 7.1 12 238 14 33 45 30 49 19 16 14 12 25 7.6 12 95 15 27 41 32 37 18 14 14 10 26 8.5 12 36 15 27 38 36 32 17 18 13 10 27 7.2 11 26 15 234 36 29 29 16 18 12 11 28 14 11 23 14 104 35 28 26 17 14 11 12 29 20 11 20 15 --- 33 27 24 17 14 11 10 30 14 11 19 55 --- 49 25 22 17 15 10 9.6 31 9.9 --- 19 28 --- 35 --- 22 --- 57 11 --- TOTAL 406.6 887.0 1384 594 1104 2125 1537 1742 1015 1209 877 324.6 MEAN 13.1 29.6 44.6 19.2 39.4 68.5 51.2 56.2 33.8 39.0 28.3 10.8 MAX 107 163 238 55 234 700 291 387 102 500 168 41 MIN 6.0 7.3 10 14 17 22 25 22 16 14 10 7.3 CFSM 0.69 1.55 2.33 1.00 2.06 3.59 2.68 2.94 1.77 2.04 1.48 0.57 IN. 0.79 1.73 2.69 1.16 2.15 4.13 2.99 3.39 1.97 2.35 1.71 0.63 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2003, BY WATER YEAR (WY) MEAN 17.3 20.0 23.8 35.9 36.8 41.4 30.7 23.1 16.2 17.1 18.9 14.0 MAX 39.3 34.7 44.6 61.6 64.7 68.5 77.5 56.2 33.8 39.0 72.8 26.5 (WY) 2000 1996 2003 1998 1998 2003 1998 2003 2003 2003 1995 2002 MIN 4.52 9.01 11.5 17.1 12.7 17.0 12.9 8.51 5.02 4.36 3.37 7.23 (WY) 2001 2002 2002 2001 2001 1999 2002 2001 2002 2002 2002 1999 SUMMARY STATISTICS FOR 2002 CALENDAR YEAR FOR 2003 WATER YEAR WATER YEARS 1994 - 2003 ANNUAL TOTAL 6832.07 13205.2 ANNUAL MEAN 18.7 36.2 24.4 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 13.7 2002 HIGHEST DAILY MEAN 300 Sep 16 700 Mar 20 1000 Aug 27 1995 LOWEST DAILY MEAN 0.74 Aug 14 6.0 Oct 12 0.74 Aug 14 2002 ANNUAL SEVEN-DAY MINIMUM 0.83 Aug 8 6.2 Oct 6 0.83 Aug 8 2002 MAXIMUM PEAK FLOW 100 Mar 20 15 Aug 27 1995 MAXIMUM PEAK STAGE 11.11 Mar 20 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 0.979 1.89 1.28 ANNUAL RUNOFF (INCHES) 13.29 25.69 17.34 10 PERCENT EXCEEDS 34 70 39 50 PERCENT EXCEEDS 11 22 14 90 PERCENT EXCEEDS 2.2 9.1 5.8 e Estimated 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021630967 GROVE CREEK NEAR PIEDMONT, SC SOURCE AGENCY USGS STATE 45 COUNTY 045 LATITUDE 344051 LONGITUDE 0822541 NAD27 DRAINAGE AREA 19.12* CONTRIBUTING DRAINAGE AREA DATUM 738. NGVD29 Date Processed: 2005-04-11 11:52 By mishealy APPROVED DD #12, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 9.6 14 15 12 12 19 16 16 8.5 15 12 11 2 9.2 14 14 12 13 18 14 26 7.8 12 13 11 3 8.8 14 13 12 61 20 14 17 7.5 11 47 11 4 9.0 13 17 12 26 18 13 14 7.7 9.7 14 10 5 8.8 14 20 16 22 17 14 11 8.7 11 46 9.8 6 9.0 28 15 17 123 18 14 10 7.3 54 36 9.8 7 9.3 17 14 13 77 17 13 9.3 7.3 17 14 206 8 18 14 14 12 38 16 13 9.0 13 24 12 493 9 18 13 13 14 31 16 13 8.7 20 49 12 60 10 12 13 80 13 27 16 13 9.0 8.9 14 11 25 11 16 12 50 12 24 16 13 8.9 8.0 35 11 18 12 12 12 27 12 46 16 14 8.8 7.6 27 158 15 13 11 11 22 12 33 16 45 8.9 8.1 16 50 14 14 11 11 83 11 31 15 23 9.0 15 12 21 13 15 10 10 35 11 48 16 17 8.9 24 9.3 17 11 16 10 10 25 11 40 17 15 8.5 25 8.1 15 16 17 10 13 23 11 29 15 14 8.3 12 23 17 115 18 10 12 19 14 27 15 14 22 8.3 86 16 35 19 11 140 17 12 25 15 13 15 7.9 29 15 18 20 10 39 15 11 24 14 12 9.5 9.1 13 15 15 21 11 24 15 11 22 17 13 8.7 18 10 16 13 22 11 19 15 11 20 14 12 7.9 11 8.6 15 12 23 11 17 15 11 20 14 11 9.1 9.5 8.4 14 11 24 11 20 15 11 20 14 11 8.2 14 7.8 14 11 25 12 17 13 15 19 14 11 7.6 31 7.8 14 9.9 26 13 15 13 16 20 14 11 6.9 68 10 13 9.5 27 49 15 12 16 23 14 12 6.9 19 32 13 151 28 23 26 12 18 21 14 11 6.7 16 9.8 12 e680 29 18 20 12 16 19 13 10 6.6 13 91 12 64 30 15 16 13 15 --- 23 10 11 17 32 12 35 31 14 --- 12 14 --- 19 --- 11 --- 16 11 --- TOTAL 410.7 613 678 404 941 500 429 328.4 438.2 708.5 698 2113.0 MEAN 13.2 20.4 21.9 13.0 32.4 16.1 14.3 10.6 14.6 22.9 22.5 70.4 MAX 49 140 83 18 123 23 45 26 68 91 158 680 MIN 8.8 10 12 11 12 13 10 6.6 7.3 7.8 11 9.5 CFSM 0.69 1.07 1.14 0.68 1.70 0.84 0.75 0.55 0.76 1.20 1.18 3.68 IN. 0.80 1.19 1.32 0.79 1.83 0.97 0.83 0.64 0.85 1.38 1.36 4.11 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1994 - 2004, BY WATER YEAR (WY) MEAN 16.8 20.1 23.6 33.6 36.4 38.9 29.1 21.9 16.0 17.6 19.2 19.1 MAX 39.3 34.7 44.6 61.6 64.7 68.5 77.5 56.2 33.8 39.0 72.8 70.4 (WY) 2000 1996 2003 1998 1998 2003 1998 2003 2003 2003 1995 2004 MIN 4.52 9.01 11.5 13.0 12.7 16.1 12.9 8.51 5.02 4.36 3.37 7.23 (WY) 2001 2002 2002 2004 2001 2004 2002 2001 2002 2002 2002 1999 SUMMARY STATISTICS FOR 2003 CALENDAR YEAR FOR 2004 WATER YEAR WATER YEARS 1994 - 2004 ANNUAL TOTAL 12229.3 8261.8 ANNUAL MEAN 33.5 22.6 24.2 HIGHEST ANNUAL MEAN 36.7 1998 LOWEST ANNUAL MEAN 13.7 2002 HIGHEST DAILY MEAN 700 Mar 20 680 Sep 28 1000 Aug 27 1995 LOWEST DAILY MEAN 7.3 Sep 21 6.6 May 29 0.74 Aug 14 2002 ANNUAL SEVEN-DAY MINIMUM 7.9 Sep 15 7.4 May 23 0.83 Aug 8 2002 MAXIMUM PEAK FLOW 15 Aug 27 1995 MAXIMUM PEAK STAGE 11.33 Sep 28 15.17 Aug 27 1995 ANNUAL RUNOFF (CFSM) 1.75 1.18 1.27 ANNUAL RUNOFF (INCHES) 23.79 16.07 17.21 10 PERCENT EXCEEDS 56 32 38 50 PERCENT EXCEEDS 20 14 14 90 PERCENT EXCEEDS 11 9.0 6.1 e Estimated