1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1980 TO SEPTEMBER 1981 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 19 6.4 5.2 6.6 6.9 8.8 17 4.0 11 2.5 3.1 1.5 2 12 5.8 5.2 6.6 14 9.6 14 3.8 5.4 3.8 3.5 1.7 3 7.6 5.7 5.5 6.4 9.6 8.6 11 3.7 5.7 3.8 3.5 1.8 4 6.4 9.3 5.2 6.3 8.2 8.6 9.9 3.7 8.0 3.6 3.0 1.9 5 6.1 7.0 5.7 6.4 7.8 13 9.9 3.6 5.4 3.7 2.4 2.1 6 6.1 5.5 5.4 6.4 7.4 10 9.6 3.5 4.3 3.4 2.1 1.9 7 6.0 5.1 5.8 10 8.0 9.3 8.8 4.6 20 2.9 2.0 1.8 8 5.7 5.2 6.4 8.0 8.6 8.6 8.4 4.6 18 2.7 2.3 1.8 9 5.4 5.7 5.1 7.2 7.6 8.4 8.2 4.0 8.2 2.6 6.9 1.7 10 5.5 6.1 9.9 6.7 12 8.4 8.2 3.9 5.8 2.2 3.6 1.5 11 5.2 5.7 6.4 6.3 530 8.2 7.6 4.0 4.6 2.1 2.7 1.4 12 5.1 5.7 5.2 6.6 29 8.0 7.2 3.8 4.2 3.9 2.3 1.3 13 5.1 6.0 4.5 9.3 19 8.0 6.9 3.6 4.0 2.7 2.0 1.3 14 5.2 6.1 4.6 6.4 16 7.6 6.7 3.4 3.7 2.4 1.8 1.2 15 5.2 6.9 4.3 7.0 15 7.4 6.7 3.3 3.3 2.2 1.7 1.3 16 5.2 6.9 4.6 7.0 15 7.4 6.6 3.2 3.1 2.0 1.6 2.0 17 5.2 6.1 4.3 6.9 13 7.4 6.4 3.1 2.9 2.7 1.9 1.7 18 5.4 6.4 4.6 6.6 20 10 6.1 3.1 2.8 8.0 3.3 1.5 19 5.5 5.7 5.1 6.9 20 11 5.7 3.0 2.7 5.2 2.8 1.4 20 5.4 5.4 5.2 7.2 16 8.2 5.5 3.0 2.7 3.4 2.3 1.3 21 5.1 5.8 4.6 7.4 14 7.8 5.8 3.2 2.6 2.9 1.8 1.2 22 5.2 5.7 4.9 7.0 13 8.8 5.7 3.0 2.6 2.6 1.8 1.2 23 5.7 5.8 5.5 6.7 12 10 6.0 2.9 2.6 2.4 1.7 1.1 24 6.6 10 5.7 6.1 11 8.6 7.4 2.8 2.5 2.4 1.7 1.1 25 6.6 8.4 5.4 6.3 10 8.2 5.7 2.7 2.5 3.1 1.5 0.96 26 6.3 6.6 5.1 6.0 9.3 7.8 5.2 2.7 2.5 3.1 1.5 0.92 27 6.4 10 5.5 6.4 8.8 7.4 4.9 5.1 2.5 3.8 1.4 0.96 28 7.0 8.4 6.9 8.0 8.8 7.0 4.6 5.4 2.5 2.9 1.4 0.96 29 6.4 5.8 6.3 6.9 --- 7.0 4.3 3.6 2.4 2.6 1.3 0.92 30 8.0 6.0 6.7 6.7 --- 8.2 4.3 3.3 2.4 2.6 1.8 0.92 31 7.2 --- 6.9 7.2 --- 7.8 --- 3.5 --- 2.8 1.9 --- TOTAL 202.8 195.2 171.7 215.5 870.0 265.1 224.3 111.1 150.9 97.0 72.6 42.34 MEAN 6.54 6.51 5.54 6.95 31.1 8.55 7.48 3.58 5.03 3.13 2.34 1.41 MAX 19 10 9.9 10 530 13 17 5.4 20 8.0 6.9 2.1 MIN 5.1 5.1 4.3 6.0 6.9 7.0 4.3 2.7 2.4 2.0 1.3 0.92 CFSM 0.47 0.47 0.40 0.50 2.24 0.62 0.54 0.26 0.36 0.23 0.17 0.10 IN. 0.54 0.52 0.46 0.58 2.33 0.71 0.60 0.30 0.40 0.26 0.19 0.11 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1981, BY WATER YEAR (WY) MEAN 6.54 6.51 5.54 6.95 31.1 8.55 7.48 3.58 5.03 3.13 2.34 1.41 MAX 6.54 6.51 5.54 6.95 31.1 8.55 7.48 3.58 5.03 3.13 2.34 1.41 (WY) 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 MIN 6.54 6.51 5.54 6.95 31.1 8.55 7.48 3.58 5.03 3.13 2.34 1.41 (WY) 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 SUMMARY STATISTICS FOR 1981 WATER YEAR ANNUAL TOTAL 2618.54 ANNUAL MEAN 7.17 HIGHEST DAILY MEAN 530 Feb 11 LOWEST DAILY MEAN 0.92 Sep 26 ANNUAL SEVEN-DAY MINIMUM 0.96 Sep 24 ANNUAL RUNOFF (CFSM) 0.52 ANNUAL RUNOFF (INCHES) 7.01 10 PERCENT EXCEEDS 9.7 50 PERCENT EXCEEDS 5.5 90 PERCENT EXCEEDS 1.8 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1981 TO SEPTEMBER 1982 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 0.92 4.9 7.6 105 25 17 9.0 12 12 5.8 4.7 1.7 2 0.96 4.9 6.0 43 19 15 10 11 10 5.6 4.3 1.7 3 1.2 4.7 5.1 94 226 14 11 10 8.0 5.6 3.7 2.5 4 1.3 4.4 4.6 118 65 14 11 9.5 7.5 5.5 3.4 1.9 5 1.5 4.4 4.0 47 34 13 12 9.0 7.0 6.4 3.9 1.6 6 2.6 4.4 4.0 32 25 13 11 8.5 6.5 6.4 4.9 1.5 7 4.9 4.4 4.0 26 21 20 10 8.5 6.5 7.4 3.8 1.3 8 8.6 4.3 4.0 22 19 15 10 9.5 6.0 12 5.2 1.3 9 11 4.3 3.9 21 18 13 14 8.5 6.0 18 4.4 1.3 10 9.6 4.6 3.8 19 20 13 12 8.0 7.0 14 3.9 1.3 11 3.2 4.4 3.8 18 17 13 11 7.5 8.0 14 3.5 1.7 12 3.4 4.3 3.9 18 18 11 10 7.0 9.0 12 3.7 1.8 13 3.5 4.3 3.9 18 25 11 10 7.0 11 7.2 3.8 1.7 14 3.5 4.3 11 22 18 10 9.5 6.5 9.0 7.2 3.4 1.5 15 3.7 4.3 56 21 16 9.5 9.5 6.5 7.0 17 3.0 1.7 16 3.8 4.4 11 22 94 9.0 9.0 6.0 6.5 21 2.8 1.5 17 4.1 4.9 6.2 22 126 9.0 9.0 6.0 6.0 16 2.6 1.2 18 4.6 4.6 5.4 19 41 10 9.5 6.5 6.5 10 3.5 2.8 19 4.9 4.4 4.6 19 26 12 13 7.0 7.0 7.4 3.6 4.4 20 4.9 4.7 4.1 19 20 11 16 6.5 6.5 6.4 3.1 4.6 21 5.2 4.6 4.0 18 18 10 13 7.0 6.0 6.4 2.7 2.7 22 5.2 4.6 4.0 17 16 9.0 13 9.0 5.8 5.6 2.4 1.8 23 5.5 4.4 3.8 23 16 8.5 13 10 5.6 5.4 2.1 1.4 24 5.9 5.1 3.9 26 15 8.0 12 12 5.4 5.4 2.0 1.2 25 11 5.2 119 20 15 8.5 14 11 5.2 5.6 2.0 1.2 26 10 4.9 27 18 16 9.0 34 11 5.8 5.4 1.8 1.2 27 7.2 4.7 20 17 29 11 45 12 12 4.3 1.7 1.2 28 5.5 5.1 17 16 22 10 20 11 8.2 3.7 1.8 1.1 29 4.9 4.4 30 16 --- 9.0 15 9.0 6.7 4.0 1.7 0.96 30 5.1 5.1 16 16 --- 8.5 13 8.0 6.1 4.1 1.7 0.84 31 4.9 --- 296 20 --- 8.5 --- 10 --- 4.1 1.7 --- TOTAL 152.58 138.0 697.6 932 1020 352.5 408.5 271.0 219.8 258.9 96.8 52.60 MEAN 4.92 4.60 22.5 30.1 36.4 11.4 13.6 8.74 7.33 8.35 3.12 1.75 MAX 11 5.2 296 118 226 20 45 12 12 21 5.2 4.6 MIN 0.92 4.3 3.8 16 15 8.0 9.0 6.0 5.2 3.7 1.7 0.84 CFSM 0.35 0.33 1.62 2.16 2.62 0.82 0.98 0.63 0.53 0.60 0.22 0.13 IN. 0.41 0.37 1.87 2.49 2.73 0.94 1.09 0.73 0.59 0.69 0.26 0.14 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1982, BY WATER YEAR (WY) MEAN 5.73 5.55 14.0 18.5 33.7 9.96 10.5 6.16 6.18 5.74 2.73 1.58 MAX 6.54 6.51 22.5 30.1 36.4 11.4 13.6 8.74 7.33 8.35 3.12 1.75 (WY) 1981 1981 1982 1982 1982 1982 1982 1982 1982 1982 1982 1982 MIN 4.92 4.60 5.54 6.95 31.1 8.55 7.48 3.58 5.03 3.13 2.34 1.41 (WY) 1982 1982 1981 1981 1981 1981 1981 1981 1981 1981 1981 1981 SUMMARY STATISTICS FOR 1981 CALENDAR YEAR FOR 1982 WATER YEAR WATER YEARS 1981 - 1982 ANNUAL TOTAL 3037.02 4600.28 ANNUAL MEAN 8.32 12.6 9.89 HIGHEST ANNUAL MEAN 12.6 1982 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 530 Feb 11 296 Dec 31 530 Feb 11 1981 LOWEST DAILY MEAN 0.92 Sep 26 0.84 Sep 30 0.84 Sep 30 1982 ANNUAL SEVEN-DAY MINIMUM 0.94 Sep 25 1.1 Sep 24 0.94 Sep 25 1981 ANNUAL RUNOFF (CFSM) 0.60 0.91 0.71 ANNUAL RUNOFF (INCHES) 8.13 12.31 9.67 10 PERCENT EXCEEDS 10 20 17 50 PERCENT EXCEEDS 4.6 7.0 6.0 90 PERCENT EXCEEDS 1.7 2.0 1.8 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1982 TO SEPTEMBER 1983 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 0.77 6.3 8.1 19 13 64 20 15 6.6 6.0 5.3 5.2 2 0.87 7.1 7.0 51 137 25 19 14 6.5 5.5 7.0 6.6 3 0.78 10 6.4 42 41 19 17 15 6.3 14 9.5 8.6 4 0.82 18 6.2 21 23 17 15 19 6.4 21 7.1 6.0 5 0.95 8.9 6.4 16 18 17 15 14 6.4 8.6 5.8 5.3 6 1.3 6.3 7.6 14 32 178 14 13 7.5 7.9 5.8 5.2 7 1.7 5.9 8.2 13 27 48 18 12 12 6.4 6.7 4.9 8 1.9 5.8 7.4 12 19 30 321 12 11 5.9 5.6 4.8 9 2.5 5.8 6.7 13 17 22 164 11 7.9 5.7 5.7 4.8 10 2.5 5.9 6.5 14 16 18 94 11 6.9 5.6 5.6 5.0 11 3.1 6.1 10 12 18 16 50 10 6.5 5.5 5.3 5.1 12 2.6 6.6 30 11 15 15 35 9.7 6.2 5.5 5.3 5.2 13 7.7 14 13 11 17 14 27 9.5 6.0 5.5 5.8 18 14 7.2 8.6 10 10 159 14 24 9.5 5.9 5.4 5.3 37 15 2.9 7.2 10 10 49 13 32 9.0 5.8 5.5 5.1 9.7 16 3.0 6.8 27 9.8 28 13 26 9.7 5.7 5.6 5.0 7.5 17 3.1 7.0 13 9.6 22 34 22 9.0 5.7 6.2 5.0 6.3 18 3.2 6.9 11 9.4 18 25 23 8.5 6.1 6.7 5.0 5.6 19 3.4 6.9 11 9.1 16 18 23 9.0 6.1 6.3 5.0 5.2 20 3.5 4.7 9.9 9.1 14 16 20 9.3 5.8 5.7 5.0 5.3 21 3.4 4.2 9.2 52 13 60 18 8.9 5.9 5.5 4.9 5.6 22 3.5 3.4 8.9 84 19 22 18 8.3 5.9 5.3 4.9 5.9 23 3.5 3.4 8.6 31 33 17 26 7.8 6.5 5.3 4.9 6.1 24 3.6 3.5 8.6 20 19 18 37 7.4 5.9 5.3 4.9 5.6 25 4.2 3.5 8.4 16 16 19 24 7.3 5.7 5.2 4.9 5.5 26 4.4 3.7 8.2 14 14 16 20 8.7 5.5 5.3 4.9 5.5 27 4.1 4.0 8.1 15 13 45 19 7.4 5.2 5.3 4.9 5.5 28 4.3 4.2 9.0 28 14 26 17 7.0 5.3 5.3 4.9 5.5 29 4.5 7.0 85 18 --- 19 16 6.9 6.2 5.2 4.7 5.6 30 5.2 6.6 26 16 --- 17 15 8.7 6.8 5.2 4.7 5.7 31 5.9 --- 26 14 --- 25 --- 7.2 --- 5.7 4.7 --- TOTAL 100.39 198.3 421.4 624.0 840 900 1189 314.8 196.2 203.1 169.2 217.8 MEAN 3.24 6.61 13.6 20.1 30.0 29.0 39.6 10.2 6.54 6.55 5.46 7.26 MAX 7.7 18 85 84 159 178 321 19 12 21 9.5 37 MIN 0.77 3.4 6.2 9.1 13 13 14 6.9 5.2 5.2 4.7 4.8 CFSM 0.23 0.48 0.98 1.45 2.16 2.09 2.85 0.73 0.47 0.47 0.39 0.52 IN. 0.27 0.53 1.13 1.67 2.25 2.41 3.18 0.84 0.53 0.54 0.45 0.58 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1983, BY WATER YEAR (WY) MEAN 4.90 5.91 13.9 19.0 32.5 16.3 20.2 7.49 6.30 6.01 3.64 3.47 MAX 6.54 6.61 22.5 30.1 36.4 29.0 39.6 10.2 7.33 8.35 5.46 7.26 (WY) 1981 1983 1982 1982 1982 1983 1983 1983 1982 1982 1983 1983 MIN 3.24 4.60 5.54 6.95 30.0 8.55 7.48 3.58 5.03 3.13 2.34 1.41 (WY) 1983 1982 1981 1981 1983 1981 1981 1981 1981 1981 1981 1981 SUMMARY STATISTICS FOR 1982 CALENDAR YEAR FOR 1983 WATER YEAR WATER YEARS 1981 - 1983 ANNUAL TOTAL 4332.19 5374.19 ANNUAL MEAN 11.9 14.7 11.5 HIGHEST ANNUAL MEAN 14.7 1983 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 226 Feb 3 321 Apr 8 530 Feb 11 1981 LOWEST DAILY MEAN 0.77 Oct 1 0.77 Oct 1 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 0.86 Sep 29 1.0 Oct 1 0.94 Sep 25 1981 ANNUAL RUNOFF (CFSM) 0.85 1.06 0.83 ANNUAL RUNOFF (INCHES) 11.59 14.38 11.24 10 PERCENT EXCEEDS 20 26 19 50 PERCENT EXCEEDS 8.0 7.9 6.4 90 PERCENT EXCEEDS 1.8 4.7 2.5 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1983 TO SEPTEMBER 1984 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 4.9 5.5 15 12 22 30 27 23 13 4.8 4.6 2.9 2 5.0 5.4 15 11 24 26 23 23 11 4.6 11 2.8 3 5.0 5.3 70 10 23 22 34 65 10 4.6 8.6 2.7 4 5.1 5.9 115 10 31 21 62 122 9.2 4.3 5.0 2.6 5 5.2 6.3 40 9.0 23 42 56 42 8.6 4.3 5.2 2.6 6 5.3 5.7 226 8.5 20 67 34 30 8.0 4.3 5.1 2.5 7 5.6 5.8 61 8.4 19 48 27 38 7.6 5.3 4.3 2.4 8 5.7 6.1 29 8.4 18 30 23 26 7.2 5.3 4.0 2.3 9 5.8 6.9 21 12 17 25 27 22 7.0 5.2 3.9 2.2 10 6.0 8.3 18 61 17 23 32 19 6.7 5.0 4.8 2.2 11 6.3 8.1 25 72 17 21 25 18 6.5 4.8 6.3 2.1 12 6.5 7.7 41 26 16 19 22 17 6.5 4.8 4.3 2.1 13 6.8 7.9 23 19 199 29 20 16 6.4 12 3.9 2.0 14 7.0 11 20 17 161 21 19 15 6.3 5.0 3.8 2.0 15 7.2 40 18 16 54 19 19 14 6.2 4.3 3.8 1.9 16 7.0 25 16 15 34 17 17 13 6.2 4.1 5.0 1.9 17 6.9 17 15 14 26 17 16 13 6.1 4.7 5.4 1.9 18 6.7 14 15 38 22 17 16 13 6.2 19 4.0 1.8 19 6.8 13 14 117 19 16 16 12 6.2 6.7 3.6 1.8 20 7.0 17 14 33 17 18 40 11 5.9 4.7 3.4 1.7 21 7.3 13 14 23 16 24 26 11 5.7 4.3 3.2 1.7 22 7.9 14 18 19 17 17 22 12 5.6 4.1 3.1 1.7 23 8.5 20 15 17 38 16 34 14 5.6 4.0 3.0 1.6 24 8.9 40 14 20 25 15 22 12 5.5 3.7 3.1 1.6 25 8.2 65 13 22 21 23 19 11 5.4 3.5 3.3 1.6 26 7.1 40 14 18 18 18 17 9.9 5.1 3.7 4.2 1.5 27 6.6 30 13 54 174 17 45 10 5.0 4.2 3.8 1.5 28 6.4 22 17 27 68 172 42 31 5.0 4.9 3.6 1.5 29 6.0 18 16 21 36 95 29 32 4.9 5.9 3.3 1.5 30 5.8 16 14 20 --- 45 24 25 4.7 4.5 3.1 2.5 31 5.5 --- 13 21 --- 33 --- 16 --- 4.3 3.0 --- TOTAL 200.0 499.9 972 779.3 1192 1003 835 735.9 203.3 164.9 136.7 61.1 MEAN 6.45 16.7 31.4 25.1 41.1 32.4 27.8 23.7 6.78 5.32 4.41 2.04 MAX 8.9 65 226 117 199 172 62 122 13 19 11 2.9 MIN 4.9 5.3 13 8.4 16 15 16 9.9 4.7 3.5 3.0 1.5 CFSM 0.46 1.20 2.26 1.81 2.96 2.33 2.00 1.71 0.49 0.38 0.32 0.15 IN. 0.54 1.34 2.60 2.09 3.19 2.68 2.23 1.97 0.54 0.44 0.37 0.16 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1984, BY WATER YEAR (WY) MEAN 5.29 8.59 18.2 20.6 34.7 20.3 22.1 11.6 6.42 5.84 3.83 3.12 MAX 6.54 16.7 31.4 30.1 41.1 32.4 39.6 23.7 7.33 8.35 5.46 7.26 (WY) 1981 1984 1984 1982 1984 1984 1983 1984 1982 1982 1983 1983 MIN 3.24 4.60 5.54 6.95 30.0 8.55 7.48 3.58 5.03 3.13 2.34 1.41 (WY) 1983 1982 1981 1981 1983 1981 1981 1981 1981 1981 1981 1981 SUMMARY STATISTICS FOR 1983 CALENDAR YEAR FOR 1984 WATER YEAR WATER YEARS 1981 - 1984 ANNUAL TOTAL 6326.0 6783.1 ANNUAL MEAN 17.3 18.5 13.3 HIGHEST ANNUAL MEAN 18.5 1984 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 321 Apr 8 226 Dec 6 530 Feb 11 1981 LOWEST DAILY MEAN 4.7 Aug 29 1.5 Sep 26 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 4.8 Aug 25 1.5 Sep 23 0.94 Sep 25 1981 ANNUAL RUNOFF (CFSM) 1.25 1.33 0.95 ANNUAL RUNOFF (INCHES) 16.93 18.15 12.96 10 PERCENT EXCEEDS 30 37 23 50 PERCENT EXCEEDS 9.7 13 6.9 90 PERCENT EXCEEDS 5.3 3.3 2.6 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1984 TO SEPTEMBER 1985 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 4.5 4.6 5.1 4.3 27 7.2 7.8 5.0 3.8 11 9.6 19 2 4.3 4.7 5.1 4.5 199 7.1 7.6 5.3 3.8 12 9.7 15 3 4.2 4.7 5.3 9.8 20 6.9 7.4 8.2 5.7 8.7 7.8 13 4 4.2 4.7 5.3 9.8 11 6.9 7.4 6.6 4.3 7.5 6.7 11 5 4.3 4.7 9.0 9.1 183 7.0 7.4 6.0 3.8 7.9 6.2 9.9 6 4.4 4.8 5.8 5.1 184 7.1 11 5.5 3.7 7.2 6.9 9.2 7 4.3 4.8 5.5 4.7 43 7.1 8.4 5.2 4.3 6.5 6.5 8.7 8 4.3 4.8 5.5 4.6 29 7.3 7.8 5.2 7.4 5.9 7.3 8.3 9 4.3 4.9 5.5 4.5 25 7.5 7.4 5.4 5.7 5.3 7.3 7.7 10 4.3 4.8 5.4 4.4 22 7.2 7.4 5.7 4.9 4.8 7.2 7.5 11 4.3 4.8 5.4 4.4 20 7.3 7.4 5.7 5.0 4.4 5.8 7.4 12 4.3 4.9 6.5 4.3 24 7.4 7.4 5.3 6.0 5.1 5.6 7.3 13 4.3 5.0 5.5 4.2 27 7.5 7.1 5.0 4.9 5.7 5.6 7.4 14 4.3 4.9 5.4 4.1 20 7.6 7.1 4.9 4.4 8.1 5.0 7.3 15 4.2 4.9 5.4 4.0 16 8.2 7.2 4.6 4.4 12 4.8 7.3 16 4.3 4.9 5.4 4.0 13 7.9 7.2 4.2 8.9 8.1 5.2 7.4 17 4.3 5.1 5.4 4.9 12 8.8 7.0 4.1 6.8 9.2 5.2 7.4 18 4.2 5.0 5.5 4.2 10 8.0 6.5 3.8 8.5 6.7 5.8 7.4 19 4.3 4.9 5.4 4.0 7.7 8.0 6.4 3.6 9.5 5.6 5.7 7.4 20 4.3 5.0 5.4 4.0 31 8.0 6.2 3.6 6.1 4.4 4.9 7.4 21 4.3 5.2 5.3 5.0 17 9.4 6.1 3.6 4.5 3.8 4.5 7.5 22 4.3 4.8 5.2 3.9 13 11 5.9 3.8 4.5 3.5 4.3 7.9 23 4.4 4.8 5.2 3.9 11 8.9 5.5 4.4 6.3 5.0 4.2 7.8 24 4.4 4.7 5.1 3.7 8.7 8.4 9.5 3.8 5.7 5.2 46 8.1 25 4.4 4.8 4.9 3.7 7.7 8.2 8.2 3.7 5.2 7.6 70 8.3 26 4.5 4.8 4.9 3.6 6.7 8.3 6.8 3.6 5.0 8.2 17 7.9 27 4.5 4.6 4.8 3.6 6.9 8.3 6.2 3.5 5.8 10 11 7.9 28 4.4 5.0 4.6 3.6 7.3 8.3 5.8 3.0 5.2 17 9.6 7.6 29 4.4 5.1 4.6 3.5 --- 8.2 5.4 4.7 9.0 17 57 7.8 30 4.6 5.2 4.5 3.5 --- 7.8 5.2 6.1 21 12 34 8.1 31 4.6 --- 4.4 6.9 --- 7.7 --- 4.5 --- 11 29 --- TOTAL 134.7 145.9 166.3 147.8 1002.0 244.5 213.7 147.6 184.1 246.4 415.4 261.9 MEAN 4.35 4.86 5.36 4.77 35.8 7.89 7.12 4.76 6.14 7.95 13.4 8.73 MAX 4.6 5.2 9.0 9.8 199 11 11 8.2 21 17 70 19 MIN 4.2 4.6 4.4 3.5 6.7 6.9 5.2 3.0 3.7 3.5 4.2 7.3 CFSM 0.31 0.35 0.39 0.34 2.57 0.57 0.51 0.34 0.44 0.57 0.96 0.63 IN. 0.36 0.39 0.45 0.40 2.68 0.65 0.57 0.40 0.49 0.66 1.11 0.70 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1985, BY WATER YEAR (WY) MEAN 5.10 7.85 15.7 17.4 34.9 17.8 19.1 10.2 6.36 6.26 5.75 4.24 MAX 6.54 16.7 31.4 30.1 41.1 32.4 39.6 23.7 7.33 8.35 13.4 8.73 (WY) 1981 1984 1984 1982 1984 1984 1983 1984 1982 1982 1985 1985 MIN 3.24 4.60 5.36 4.77 30.0 7.89 7.12 3.58 5.03 3.13 2.34 1.41 (WY) 1983 1982 1985 1985 1983 1985 1985 1981 1981 1981 1981 1981 SUMMARY STATISTICS FOR 1984 CALENDAR YEAR FOR 1985 WATER YEAR WATER YEARS 1981 - 1985 ANNUAL TOTAL 5558.1 3310.3 ANNUAL MEAN 15.2 9.07 12.4 HIGHEST ANNUAL MEAN 18.5 1984 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 199 Feb 13 199 Feb 2 530 Feb 11 1981 LOWEST DAILY MEAN 1.5 Sep 26 3.0 May 28 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 1.5 Sep 23 3.6 Jan 24 0.94 Sep 25 1981 ANNUAL RUNOFF (CFSM) 1.09 0.65 0.89 ANNUAL RUNOFF (INCHES) 14.87 8.86 12.14 10 PERCENT EXCEEDS 31 11 22 50 PERCENT EXCEEDS 5.6 5.7 6.6 90 PERCENT EXCEEDS 3.3 4.2 3.0 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1985 TO SEPTEMBER 1986 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 26 75 33 8.9 10 11 9.6 4.9 3.5 2.0 1.0 6.9 2 262 30 25 8.4 10 11 9.7 4.7 3.3 1.9 1.0 5.2 3 35 19 16 8.4 10 11 9.3 4.6 3.0 2.1 1.0 4.2 4 149 18 14 8.3 9.9 11 9.0 4.4 2.8 2.6 1.1 3.7 5 49 14 13 8.1 11 10 8.7 4.5 2.6 1.7 1.1 12 6 25 12 12 7.9 15 10 8.5 4.3 2.4 1.8 1.1 11 7 16 11 11 7.8 13 9.9 8.3 4.3 2.3 1.7 1.2 9.0 8 13 11 11 7.8 12 9.9 9.8 4.1 2.8 1.6 1.2 7.4 9 12 11 11 7.9 11 9.8 9.9 4.1 2.5 1.5 1.3 6.2 10 11 10 10 8.3 35 10 8.3 3.8 2.3 1.4 1.4 4.0 11 11 9.8 10 8.4 58 10 7.8 3.8 3.3 1.3 1.5 3.1 12 10 13 11 8.1 20 10 7.5 3.9 2.9 1.2 1.8 6.2 13 10 15 16 8.3 16 11 7.4 5.4 2.6 1.3 8.8 6.6 14 9.9 12 12 8.3 15 22 7.1 4.9 2.2 2.3 7.0 6.8 15 9.8 12 11 8.4 14 14 6.9 4.4 2.4 6.0 5.4 5.2 16 9.5 13 10 8.3 13 12 6.8 4.4 3.2 5.6 3.6 4.1 17 9.6 12 10 8.5 13 11 6.8 4.3 3.8 3.9 2.7 3.1 18 9.5 11 9.9 23 13 11 6.9 4.6 5.3 2.4 1.9 2.4 19 9.4 11 9.4 52 13 43 6.7 4.7 5.0 1.8 1.7 1.9 20 9.4 11 9.1 16 13 44 6.5 5.2 4.0 1.2 18 1.8 21 9.4 16 9.0 12 12 21 7.3 7.7 3.4 0.98 13 1.7 22 40 183 9.0 11 12 16 6.7 6.2 3.0 1.0 9.0 1.6 23 23 68 8.9 11 12 13 6.2 4.0 2.7 1.1 7.2 1.4 24 13 32 8.9 10 12 12 6.0 5.6 2.5 1.1 5.8 1.3 25 11 19 8.8 10 11 12 5.9 7.0 2.4 1.0 6.4 1.2 26 11 18 8.5 11 11 11 5.7 10 2.3 1.0 9.4 1.1 27 11 15 8.6 10 11 11 5.5 19 2.2 1.1 8.2 1.2 28 11 13 8.7 10 11 11 5.2 12 2.2 1.2 12 1.3 29 10 12 8.8 10 --- 10 5.2 4.7 2.1 1.1 11 2.4 30 12 49 8.6 10 --- 10 5.1 4.1 2.1 1.1 7.6 5.2 31 22 --- 8.7 9.9 --- 9.8 --- 3.7 --- 1.0 8.8 --- TOTAL 869.5 755.8 360.9 346.0 416.9 428.4 220.3 173.3 87.1 56.98 162.2 129.2 MEAN 28.0 25.2 11.6 11.2 14.9 13.8 7.34 5.59 2.90 1.84 5.23 4.31 MAX 262 183 33 52 58 44 9.9 19 5.3 6.0 18 12 MIN 9.4 9.8 8.5 7.8 9.9 9.8 5.1 3.7 2.1 0.98 1.0 1.1 CFSM 2.02 1.81 0.84 0.80 1.07 0.99 0.53 0.40 0.21 0.13 0.38 0.31 IN. 2.33 2.02 0.97 0.93 1.12 1.15 0.59 0.46 0.23 0.15 0.43 0.35 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1986, BY WATER YEAR (WY) MEAN 8.92 10.7 15.0 16.4 31.6 17.2 17.2 9.43 5.79 5.52 5.66 4.25 MAX 28.0 25.2 31.4 30.1 41.1 32.4 39.6 23.7 7.33 8.35 13.4 8.73 (WY) 1986 1986 1984 1982 1984 1984 1983 1984 1982 1982 1985 1985 MIN 3.24 4.60 5.36 4.77 14.9 7.89 7.12 3.58 2.90 1.84 2.34 1.41 (WY) 1983 1982 1985 1985 1986 1985 1985 1981 1986 1986 1981 1981 SUMMARY STATISTICS FOR 1985 CALENDAR YEAR FOR 1986 WATER YEAR WATER YEARS 1981 - 1986 ANNUAL TOTAL 4849.6 4006.58 ANNUAL MEAN 13.3 11.0 12.2 HIGHEST ANNUAL MEAN 18.5 1984 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 262 Oct 2 262 Oct 2 530 Feb 11 1981 LOWEST DAILY MEAN 3.0 May 28 0.98 Jul 21 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 3.6 Jan 24 1.0 Jul 21 0.94 Sep 25 1981 MAXIMUM PEAK FLOW 3680 Oct 2 1985 MAXIMUM PEAK STAGE 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 0.96 0.79 0.88 ANNUAL RUNOFF (INCHES) 12.98 10.72 11.91 10 PERCENT EXCEEDS 20 16 21 50 PERCENT EXCEEDS 7.8 8.7 6.9 90 PERCENT EXCEEDS 4.3 1.7 2.6 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1986 TO SEPTEMBER 1987 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 4.5 15 60 166 21 154 34 8.3 6.3 5.9 7.1 8.6 2 3.5 35 90 72 21 63 27 8.2 6.3 6.5 6.4 6.2 3 3.5 22 60 31 21 37 26 8.0 6.3 7.8 5.5 5.8 4 4.0 17 35 23 19 29 25 8.1 6.3 7.4 7.6 5.8 5 4.0 13 25 19 19 27 25 14 11 6.4 19 6.9 6 2.5 12 22 16 19 26 26 9.4 9.7 5.9 6.5 7.1 7 3.0 10 18 16 58 25 18 8.4 7.0 5.9 9.6 10 8 2.5 9.0 17 14 34 40 17 8.0 6.4 5.9 6.5 11 9 2.0 8.5 15 14 25 35 17 7.5 6.3 5.9 7.1 8.8 10 4.0 8.0 30 14 22 32 16 7.2 6.3 5.8 5.6 7.0 11 11 7.5 45 13 20 30 15 7.0 6.3 5.7 5.6 6.3 12 8.0 18 100 13 19 28 15 7.0 6.3 5.7 5.5 6.5 13 6.5 25 120 12 19 26 14 7.2 6.3 5.7 5.5 9.0 14 11 20 70 12 19 25 14 7.1 6.2 5.7 5.4 7.0 15 16 16 45 13 19 23 18 7.1 9.8 5.7 5.4 6.3 16 12 50 35 13 26 22 16 7.0 8.8 5.7 5.4 5.9 17 9.0 40 28 20 21 21 15 7.2 8.0 5.7 5.4 5.7 18 7.0 25 24 78 20 20 14 6.8 14 5.6 5.4 5.5 19 6.0 13 21 259 20 25 13 6.7 8.2 5.6 5.4 5.5 20 5.5 100 19 94 19 30 12 6.6 9.5 5.6 5.3 5.6 21 5.2 60 18 48 19 25 12 6.7 9.1 5.5 5.2 5.5 22 4.8 30 17 240 32 22 12 6.6 6.8 5.5 5.2 5.2 23 4.6 25 16 102 30 20 11 6.4 6.6 5.5 5.2 5.0 24 5.4 20 70 52 24 19 11 6.4 6.4 5.5 5.2 4.6 25 7.0 25 150 46 21 54 10 6.4 6.3 5.5 5.2 3.9 26 11 35 60 41 21 28 9.9 6.3 6.5 5.4 5.2 3.9 27 15 50 35 33 103 24 9.7 6.3 6.3 5.5 5.2 3.8 28 12 30 25 28 165 38 9.5 6.3 6.2 5.4 5.2 3.9 29 10 21 22 25 --- 25 9.2 6.3 6.1 5.4 5.2 4.1 30 9.0 40 20 23 --- 70 8.8 6.3 6.0 5.4 5.1 4.8 31 7.0 --- 19 22 --- 85 --- 6.3 --- 5.2 6.5 --- TOTAL 216.5 800.0 1331 1572 876 1128 480.1 227.1 221.6 179.9 193.6 185.2 MEAN 6.98 26.7 42.9 50.7 31.3 36.4 16.0 7.33 7.39 5.80 6.25 6.17 MAX 16 100 150 259 165 154 34 14 14 7.8 19 11 MIN 2.0 7.5 15 12 19 19 8.8 6.3 6.0 5.2 5.1 3.8 CFSM 0.50 1.92 3.09 3.65 2.25 2.62 1.15 0.53 0.53 0.42 0.45 0.44 IN. 0.58 2.14 3.56 4.21 2.34 3.02 1.28 0.61 0.59 0.48 0.52 0.50 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1987, BY WATER YEAR (WY) MEAN 8.65 13.0 19.0 21.3 31.6 19.9 17.0 9.13 6.01 5.56 5.74 4.52 MAX 28.0 26.7 42.9 50.7 41.1 36.4 39.6 23.7 7.39 8.35 13.4 8.73 (WY) 1986 1987 1987 1987 1984 1987 1983 1984 1987 1982 1985 1985 MIN 3.24 4.60 5.36 4.77 14.9 7.89 7.12 3.58 2.90 1.84 2.34 1.41 (WY) 1983 1982 1985 1985 1986 1985 1985 1981 1986 1986 1981 1981 SUMMARY STATISTICS FOR 1986 CALENDAR YEAR FOR 1987 WATER YEAR WATER YEARS 1981 - 1987 ANNUAL TOTAL 4367.88 7411.0 ANNUAL MEAN 12.0 20.3 13.3 HIGHEST ANNUAL MEAN 20.3 1987 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 150 Dec 25 259 Jan 19 530 Feb 11 1981 LOWEST DAILY MEAN 0.98 Jul 21 2.0 Oct 9 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 1.0 Jul 21 3.1 Oct 3 0.94 Sep 25 1981 MAXIMUM PEAK FLOW 3680 Oct 2 1985 MAXIMUM PEAK STAGE 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 0.86 1.46 0.96 ANNUAL RUNOFF (INCHES) 11.69 19.83 13.04 10 PERCENT EXCEEDS 25 40 25 50 PERCENT EXCEEDS 7.9 10 7.1 90 PERCENT EXCEEDS 1.7 5.4 2.9 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1987 TO SEPTEMBER 1988 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 4.3 5.5 5.6 6.5 11 9.5 9.5 7.1 3.8 2.3 1.8 2.8 2 4.0 5.5 5.4 19 11 9.3 9.6 6.8 3.7 2.1 1.8 2.5 3 3.8 5.5 5.9 19 15 9.2 8.6 6.3 3.7 2.0 1.8 2.5 4 3.8 5.8 5.8 16 66 10 8.4 6.9 3.8 2.4 1.9 2.6 5 3.6 5.8 5.2 11 31 10 7.9 11 3.8 2.2 1.8 4.6 6 3.5 5.6 5.1 9.8 19 9.6 9.1 7.7 3.7 2.0 1.8 2.5 7 3.5 5.6 5.1 17 15 9.3 10 6.3 3.7 2.0 2.2 2.5 8 3.5 5.7 5.1 39 14 8.9 8.2 6.0 3.7 1.9 2.2 2.5 9 3.3 5.9 5.3 24 13 9.8 7.4 5.5 3.7 1.9 1.9 15 10 3.2 7.7 5.7 9.2 12 15 6.8 10 4.6 2.0 1.9 12 11 3.2 8.5 5.3 9.7 11 12 6.8 22 3.9 2.2 2.9 8.0 12 3.3 8.4 5.3 9.6 11 9.6 40 10 3.7 1.9 2.9 5.4 13 4.0 8.4 5.3 12 12 15 16 8.6 3.0 1.7 2.1 5.2 14 4.5 8.6 5.3 13 11 12 12 8.3 2.6 1.6 2.1 4.5 15 4.7 8.9 10 11 11 10 11 6.8 2.5 1.5 2.3 3.5 16 4.9 9.2 9.7 10 11 9.7 9.8 6.1 2.4 1.4 2.1 3.9 17 4.7 39 7.1 15 11 9.5 9.0 5.9 2.4 1.5 2.0 4.5 18 4.4 14 6.3 31 11 11 10 5.8 3.0 1.5 2.0 6.2 19 4.4 7.6 6.3 22 15 21 17 5.5 4.4 1.6 2.0 4.7 20 4.5 5.8 6.1 37 13 14 12 5.4 5.6 1.7 2.0 3.9 21 4.5 5.2 7.1 23 12 12 10 5.2 4.0 1.8 2.1 3.4 22 4.7 4.9 13 16 12 11 9.4 5.1 3.0 1.8 2.5 3.2 23 5.2 4.9 9.4 13 11 10 9.6 5.2 2.7 2.5 2.1 3.1 24 5.3 4.9 7.8 12 11 9.8 12 6.1 2.5 1.9 2.1 3.1 25 5.3 4.9 7.3 13 10 9.9 11 7.7 2.4 1.8 2.0 3.2 26 5.4 6.6 6.9 13 10 14 12 6.6 2.2 1.8 2.0 3.1 27 7.2 12 6.8 11 9.9 14 10 5.3 2.6 1.8 2.3 3.1 28 7.2 9.4 8.0 11 9.9 12 8.9 5.2 2.3 3.0 2.4 3.2 29 6.2 7.0 8.3 10 9.6 11 8.2 5.0 2.1 1.8 2.4 3.1 30 5.8 6.1 7.4 9.8 --- 10 7.5 4.9 2.7 1.9 2.4 3.1 31 5.5 --- 7.3 10 --- 9.7 --- 4.4 --- 2.4 3.3 --- TOTAL 141.4 242.9 210.2 482.6 419.4 347.8 327.7 218.7 98.2 59.9 67.1 130.9 MEAN 4.56 8.10 6.78 15.6 14.5 11.2 10.9 7.05 3.27 1.93 2.16 4.36 MAX 7.2 39 13 39 66 21 40 22 5.6 3.0 3.3 15 MIN 3.2 4.9 5.1 6.5 9.6 8.9 6.8 4.4 2.1 1.4 1.8 2.5 CFSM 0.33 0.58 0.49 1.12 1.04 0.81 0.79 0.51 0.24 0.14 0.16 0.31 IN. 0.38 0.65 0.56 1.29 1.12 0.93 0.88 0.59 0.26 0.16 0.18 0.35 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1988, BY WATER YEAR (WY) MEAN 8.14 12.4 17.5 20.6 29.4 18.8 16.2 8.87 5.67 5.11 5.30 4.50 MAX 28.0 26.7 42.9 50.7 41.1 36.4 39.6 23.7 7.39 8.35 13.4 8.73 (WY) 1986 1987 1987 1987 1984 1987 1983 1984 1987 1982 1985 1985 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1987 CALENDAR YEAR FOR 1988 WATER YEAR WATER YEARS 1981 - 1988 ANNUAL TOTAL 5658.0 2746.8 ANNUAL MEAN 15.5 7.50 12.6 HIGHEST ANNUAL MEAN 20.3 1987 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 259 Jan 19 66 Feb 4 530 Feb 11 1981 LOWEST DAILY MEAN 3.2 Oct 10 1.4 Jul 16 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 3.4 Oct 6 1.5 Jul 13 0.94 Sep 25 1981 MAXIMUM PEAK FLOW 3680 Oct 2 1985 MAXIMUM PEAK STAGE 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 1.12 0.54 0.91 ANNUAL RUNOFF (INCHES) 15.14 7.35 12.33 10 PERCENT EXCEEDS 28 13 23 50 PERCENT EXCEEDS 7.0 5.8 7.0 90 PERCENT EXCEEDS 5.1 2.0 2.6 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1988 TO SEPTEMBER 1989 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 3.1 26 7.0 11 9.0 25 10 18 4.3 8.6 10 4.6 2 3.1 10 6.8 8.4 8.8 23 11 16 4.1 8.0 11 4.6 3 59 8.1 6.6 15 8.8 45 14 13 4.1 20 9.9 4.5 4 33 7.3 6.5 13 8.8 31 15 12 5.1 56 9.0 4.5 5 14 9.2 6.4 9.6 10 27 16 12 7.5 60 8.6 4.5 6 9.6 8.6 6.8 8.9 12 50 30 15 15 30 8.0 4.4 7 6.9 7.8 6.6 8.6 12 38 65 12 11 17 7.5 4.4 8 6.2 7.1 6.6 8.2 10 27 47 11 7.2 12 7.3 4.3 9 5.9 6.8 6.8 12 9.7 23 29 15 19 16 7.1 4.1 10 5.7 6.3 6.8 14 9.6 19 23 15 12 10 6.7 4.3 11 11 6.0 6.8 12 9.3 15 36 12 9.7 7.0 6.5 5.7 12 5.2 5.8 6.8 10 9.1 14 20 10 9.0 6.5 6.4 7.7 13 4.6 5.8 6.7 12 9.1 13 19 9.6 7.6 16 6.4 9.5 14 4.3 5.8 6.6 12 9.1 13 17 8.8 7.2 12 6.8 5.6 15 4.3 5.6 6.6 21 9.1 12 16 10 9.0 8.5 16 4.7 16 4.3 5.6 7.4 13 9.1 12 15 8.5 12 16 13 5.4 17 4.3 12 7.1 11 9.1 11 14 7.3 16 25 8.6 4.6 18 4.1 7.5 7.0 11 9.1 13 14 6.3 9.5 30 8.7 4.2 19 4.0 6.8 6.8 10 9.1 14 12 6.1 7.9 10 7.8 4.1 20 4.0 6.3 6.8 9.9 11 122 11 6.0 18 8.0 7.4 4.4 21 5.5 6.0 6.8 10 92 92 11 5.8 25 20 6.4 5.4 22 6.6 6.2 6.6 10 110 37 11 5.7 30 50 5.7 25 23 5.6 6.6 6.9 9.7 40 27 10 5.7 20 15 5.4 9.7 24 4.9 7.4 7.0 9.3 32 23 12 5.3 12 13 5.2 6.3 25 4.5 6.6 7.0 9.3 29 22 17 5.0 10 12 5.1 6.0 26 4.6 6.3 7.0 9.3 27 20 11 4.8 8.5 11 5.0 6.9 27 5.6 6.2 6.8 9.1 23 18 9.5 4.6 8.0 14 5.0 6.5 28 5.7 9.1 7.0 9.1 29 17 9.0 4.5 7.8 17 4.9 4.9 29 5.5 7.6 7.4 9.1 --- 15 9.4 4.5 7.6 12 4.8 5.0 30 5.4 7.5 7.3 9.0 --- 14 11 4.4 8.4 12 4.8 9.0 31 11 --- 8.6 9.1 --- 11 --- 4.3 --- 14 4.7 --- TOTAL 261.5 233.9 213.9 333.6 573.8 843 544.9 278.2 332.5 566.6 229.7 184.8 MEAN 8.44 7.80 6.90 10.8 20.5 27.2 18.2 8.97 11.1 18.3 7.41 6.16 MAX 59 26 8.6 21 110 122 65 18 30 60 16 25 MIN 3.1 5.6 6.4 8.2 8.8 11 9.0 4.3 4.1 6.5 4.7 4.1 CFSM 0.61 0.56 0.50 0.77 1.47 1.96 1.31 0.65 0.80 1.31 0.53 0.44 IN. 0.70 0.63 0.57 0.89 1.54 2.26 1.46 0.74 0.89 1.52 0.61 0.49 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1989, BY WATER YEAR (WY) MEAN 8.17 11.9 16.3 19.5 28.4 19.8 16.5 8.88 6.27 6.57 5.53 4.69 MAX 28.0 26.7 42.9 50.7 41.1 36.4 39.6 23.7 11.1 18.3 13.4 8.73 (WY) 1986 1987 1987 1987 1984 1987 1983 1984 1989 1989 1985 1985 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1988 CALENDAR YEAR FOR 1989 WATER YEAR WATER YEARS 1981 - 1989 ANNUAL TOTAL 2861.6 4596.4 ANNUAL MEAN 7.82 12.6 12.6 HIGHEST ANNUAL MEAN 20.3 1987 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 66 Feb 4 122 Mar 20 530 Feb 11 1981 LOWEST DAILY MEAN 1.4 Jul 16 3.1 Oct 1 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 1.5 Jul 13 4.2 Oct 14 0.94 Sep 25 1981 MAXIMUM PEAK FLOW 3680 Oct 2 1985 MAXIMUM PEAK STAGE 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 0.56 0.91 0.91 ANNUAL RUNOFF (INCHES) 7.66 12.30 12.33 10 PERCENT EXCEEDS 13 23 23 50 PERCENT EXCEEDS 6.6 9.0 7.2 90 PERCENT EXCEEDS 2.0 4.8 2.9 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1989 TO SEPTEMBER 1990 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 27 7.0 9.7 29 11 18 13 8.5 4.5 2.6 2.4 6.3 2 28 7.4 9.4 18 12 17 11 6.9 4.4 2.5 2.5 4.7 3 11 8.9 9.2 16 12 57 11 6.2 4.5 2.3 4.6 4.1 4 9.2 8.1 9.0 15 18 28 11 8.1 4.9 2.2 3.4 3.7 5 8.0 7.6 9.5 16 17 23 10 49 4.4 2.3 2.7 3.5 6 7.4 7.5 9.4 38 14 20 10 22 4.2 2.2 2.7 3.3 7 6.8 8.5 14 39 13 19 12 14 3.9 2.1 5.8 3.1 8 6.5 8.8 147 77 13 18 10 11 3.6 2.1 3.7 3.0 9 5.8 9.5 103 29 15 21 9.7 9.7 3.7 2.3 3.6 3.0 10 5.4 9.1 43 21 19 20 9.7 17 5.2 2.4 4.6 3.8 11 5.3 8.6 29 19 17 19 16 12 4.3 2.1 3.4 3.4 12 5.3 8.4 48 15 14 18 11 9.3 3.8 2.1 2.8 3.1 13 5.3 8.4 47 14 13 16 10 8.3 3.5 2.9 2.6 3.0 14 5.4 8.6 29 13 12 15 10 7.9 3.6 5.8 2.3 6.3 15 5.9 13 22 13 12 14 10 7.3 3.5 4.9 2.2 5.5 16 5.5 19 19 12 30 13 10 6.9 3.6 3.8 2.2 4.2 17 7.1 11 18 12 30 33 9.2 6.8 3.8 4.6 2.2 3.6 18 12 10 17 12 21 27 8.7 6.8 3.6 4.8 2.0 3.4 19 14 9.3 18 11 88 20 8.5 6.3 3.5 6.0 2.0 3.1 20 9.3 8.1 18 11 40 18 8.3 5.9 3.0 6.3 2.0 3.1 21 8.2 7.9 17 17 28 16 8.3 6.6 2.7 9.7 2.5 3.1 22 7.7 8.4 16 13 37 14 8.0 6.4 4.1 10 27 4.3 23 7.2 21 15 12 39 13 7.9 5.8 8.2 5.6 8.8 4.1 24 7.0 12 15 11 28 13 7.6 5.5 4.9 4.2 6.3 3.5 25 6.8 11 14 15 23 12 7.1 5.4 4.0 3.6 5.4 3.3 26 6.6 10 14 17 21 12 6.7 5.0 3.6 3.3 4.5 3.3 27 6.5 10 13 13 20 12 6.2 4.6 3.3 2.9 4.1 3.1 28 6.4 10 13 12 19 11 12 4.6 3.1 2.8 3.8 3.1 29 6.4 11 13 13 --- 13 18 7.0 3.0 2.8 3.5 4.4 30 6.4 9.9 12 16 --- 14 10 5.4 2.6 2.6 3.3 4.5 31 6.9 --- 17 12 --- 16 --- 4.8 --- 2.5 12 --- TOTAL 266.3 298.0 787.2 581 636 580 300.9 291.0 119.0 116.3 140.9 113.9 MEAN 8.59 9.93 25.4 18.7 22.7 18.7 10.0 9.39 3.97 3.75 4.55 3.80 MAX 28 21 147 77 88 57 18 49 8.2 10 27 6.3 MIN 5.3 7.0 9.0 11 11 11 6.2 4.6 2.6 2.1 2.0 3.0 CFSM 0.62 0.71 1.83 1.35 1.63 1.35 0.72 0.68 0.29 0.27 0.33 0.27 IN. 0.71 0.80 2.11 1.55 1.70 1.55 0.81 0.78 0.32 0.31 0.38 0.30 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1990, BY WATER YEAR (WY) MEAN 8.21 11.7 17.2 19.4 27.8 19.7 15.8 8.93 6.04 6.29 5.43 4.60 MAX 28.0 26.7 42.9 50.7 41.1 36.4 39.6 23.7 11.1 18.3 13.4 8.73 (WY) 1986 1987 1987 1987 1984 1987 1983 1984 1989 1989 1985 1985 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1989 CALENDAR YEAR FOR 1990 WATER YEAR WATER YEARS 1981 - 1990 ANNUAL TOTAL 5238.6 4230.5 ANNUAL MEAN 14.4 11.6 12.5 HIGHEST ANNUAL MEAN 20.3 1987 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 147 Dec 8 147 Dec 8 530 Feb 11 1981 LOWEST DAILY MEAN 4.1 Jun 2 2.0 Aug 18 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 4.3 May 28 2.1 Aug 14 0.94 Sep 25 1981 MAXIMUM PEAK FLOW 3680 Oct 2 1985 MAXIMUM PEAK STAGE 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 1.03 0.83 0.90 ANNUAL RUNOFF (INCHES) 14.02 11.32 12.23 10 PERCENT EXCEEDS 27 21 22 50 PERCENT EXCEEDS 10 8.5 7.3 90 PERCENT EXCEEDS 5.3 3.0 2.9 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1990 TO SEPTEMBER 1991 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 4.5 20 9.6 12 39 16 30 22 13 7.3 29 6.9 2 4.2 19 8.8 13 29 80 23 21 22 6.8 85 7.9 3 3.9 18 8.9 11 20 451 20 21 13 6.6 31 6.7 4 4.1 17 10 11 18 170 18 20 9.4 6.6 20 6.3 5 5.0 17 9.0 11 17 91 17 34 8.6 6.4 17 6.2 6 4.4 16 8.7 10 16 40 17 23 8.1 6.4 16 6.1 7 4.3 16 8.8 10 16 25 16 18 7.5 6.4 16 6.0 8 4.1 18 11 11 15 22 16 18 7.0 6.4 14 6.0 9 2.7 47 9.3 10 15 21 18 19 6.8 5.8 14 5.9 10 6.8 55 8.7 10 15 20 23 24 6.5 5.4 14 5.8 11 21 23 8.5 56 14 20 20 17 6.3 5.0 13 5.8 12 485 17 8.3 42 14 19 18 16 6.2 4.6 15 5.6 13 65 14 8.0 20 15 21 17 15 6.0 4.2 16 5.6 14 27 13 8.1 16 17 22 16 14 8.9 3.9 25 5.5 15 22 12 8.1 22 14 20 16 12 15 4.1 26 5.4 16 20 11 7.9 64 13 19 15 12 8.9 7.0 16 5.8 17 18 11 7.7 22 13 18 15 38 7.8 16 12 5.9 18 17 10 7.7 17 13 17 14 16 10 29 10 5.8 19 15 9.7 8.9 36 13 17 13 43 8.5 33 14 5.6 20 13 9.2 36 67 12 16 15 24 32 15 12 5.4 21 12 9.0 27 27 12 16 14 21 21 9.7 9.3 5.4 22 85 9.0 19 19 16 15 13 18 16 8.2 8.5 5.5 23 188 9.0 17 16 26 15 12 16 9.9 7.2 8.0 5.3 24 50 9.0 18 72 18 14 12 14 8.7 6.5 7.7 5.3 25 33 9.0 15 52 16 14 11 13 8.3 5.6 12 6.5 26 30 8.9 14 26 15 14 11 12 7.8 61 11 6.7 27 23 8.7 12 20 14 25 22 11 7.7 28 8.9 5.8 28 21 18 12 22 13 44 21 11 8.5 42 8.0 5.5 29 21 16 12 23 --- 101 69 10 8.0 31 7.7 5.3 30 20 11 12 184 --- 60 44 9.5 7.7 20 7.5 5.2 31 20 --- 14 104 --- 40 --- 10 --- 20 7.1 --- TOTAL 1250.0 480.5 374.0 1036 468 1483 586 572.5 315.1 425.1 510.7 176.7 MEAN 40.3 16.0 12.1 33.4 16.7 47.8 19.5 18.5 10.5 13.7 16.5 5.89 MAX 485 55 36 184 39 451 69 43 32 61 85 7.9 MIN 2.7 8.7 7.7 10 12 14 11 9.5 6.0 3.9 7.1 5.2 CFSM 2.90 1.15 0.87 2.40 1.20 3.44 1.41 1.33 0.76 0.99 1.19 0.42 IN. 3.35 1.29 1.00 2.77 1.25 3.97 1.57 1.53 0.84 1.14 1.37 0.47 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1991, BY WATER YEAR (WY) MEAN 11.1 12.1 16.7 20.7 26.8 22.2 16.2 9.80 6.45 6.97 6.44 4.72 MAX 40.3 26.7 42.9 50.7 41.1 47.8 39.6 23.7 11.1 18.3 16.5 8.73 (WY) 1991 1987 1987 1987 1984 1991 1983 1984 1989 1989 1991 1985 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1990 CALENDAR YEAR FOR 1991 WATER YEAR WATER YEARS 1981 - 1991 ANNUAL TOTAL 7677.6 ANNUAL MEAN 21.0 13.3 HIGHEST ANNUAL MEAN 21.0 1991 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 485 Oct 12 530 Feb 11 1981 LOWEST DAILY MEAN 2.7 Oct 9 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 4.1 Oct 3 0.86 Sep 29 1982 MAXIMUM PEAK FLOW 2900 Oct 12 3680 Oct 2 1985 MAXIMUM PEAK STAGE 14.80 Oct 12 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 1.51 0.96 ANNUAL RUNOFF (INCHES) 20.55 12.98 10 PERCENT EXCEEDS 33 23 50 PERCENT EXCEEDS 14 7.8 90 PERCENT EXCEEDS 5.9 3.1 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1991 TO SEPTEMBER 1992 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 5.2 7.1 7.9 8.0 11 15 14 8.1 5.7 21 3.3 7.4 2 5.6 8.1 8.0 10 11 13 13 7.7 5.5 14 3.3 7.1 3 5.7 7.8 12 12 10 13 13 7.2 10 10 3.3 7.0 4 5.6 7.9 12 14 10 12 12 6.8 14 8.9 3.2 6.8 5 5.8 7.8 8.6 11 11 12 11 6.7 7.9 7.6 3.0 7.2 6 5.7 7.9 7.8 10 12 104 11 7.1 6.6 6.8 3.0 11 7 5.3 7.9 7.5 9.0 11 159 12 8.1 5.9 6.4 3.2 9.9 8 5.5 7.9 7.3 8.8 10 45 12 13 8.3 5.3 3.2 7.9 9 5.5 9.6 7.2 9.0 9.8 28 11 9.9 31 4.8 3.4 7.0 10 5.6 14 7.5 9.0 9.8 23 10 8.3 13 4.4 4.6 7.2 11 5.7 9.7 7.1 9.6 9.8 20 10 7.4 11 4.2 3.5 6.8 12 5.6 7.9 7.2 9.5 9.6 18 10 7.1 12 3.9 3.1 6.5 13 5.3 7.2 7.1 9.4 9.5 16 9.4 8.0 12 3.8 62 5.8 14 5.3 6.9 7.7 9.8 9.4 15 8.9 8.3 44 3.5 111 6.1 15 5.7 6.8 7.4 9.4 13 14 9.8 7.1 19 3.3 22 6.1 16 6.1 6.8 7.2 9.0 14 13 9.7 6.8 14 3.2 15 6.0 17 6.0 6.8 7.0 9.0 14 12 8.6 6.6 11 3.3 10 5.9 18 5.8 6.8 6.8 9.2 17 13 8.2 6.5 9.2 3.5 8.7 5.8 19 5.8 6.8 6.8 9.8 15 19 8.0 6.2 8.4 3.8 64 5.7 20 6.5 6.8 6.9 9.5 13 17 17 7.3 7.9 4.5 78 5.7 21 6.3 6.9 7.0 9.0 12 15 34 6.2 7.1 5.0 27 5.8 22 6.3 7.4 7.0 11 11 13 29 5.6 6.6 4.4 149 5.7 23 6.2 7.5 7.1 20 40 18 16 5.5 6.2 5.9 54 5.5 24 6.3 7.5 11 29 26 15 12 5.2 5.9 4.8 29 11 25 6.4 7.5 8.1 17 44 16 11 5.0 5.4 4.2 20 8.4 26 6.6 7.6 7.7 13 40 41 9.8 6.4 5.1 3.8 16 7.4 27 6.7 7.6 8.2 11 24 22 9.5 5.6 5.1 3.6 13 29 28 6.7 8.6 13 12 19 18 9.3 5.4 5.2 3.6 11 24 29 6.6 8.3 17 12 17 15 8.9 5.7 5.7 4.1 9.5 12 30 6.7 7.7 11 11 --- 17 8.8 6.7 32 3.6 8.5 9.0 31 6.9 --- 8.7 11 --- 17 --- 6.1 --- 3.3 8.0 --- TOTAL 185.0 235.1 262.8 351.0 462.9 788 366.9 217.6 340.7 172.5 755.8 256.7 MEAN 5.97 7.84 8.48 11.3 16.0 25.4 12.2 7.02 11.4 5.56 24.4 8.56 MAX 6.9 14 17 29 44 159 34 13 44 21 149 29 MIN 5.2 6.8 6.8 8.0 9.4 12 8.0 5.0 5.1 3.2 3.0 5.5 CFSM 0.43 0.56 0.61 0.81 1.15 1.83 0.88 0.50 0.82 0.40 1.75 0.62 IN. 0.50 0.63 0.70 0.94 1.24 2.11 0.98 0.58 0.91 0.46 2.02 0.69 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1992, BY WATER YEAR (WY) MEAN 10.7 11.7 16.0 19.9 25.9 22.5 15.8 9.57 6.86 6.85 7.93 5.04 MAX 40.3 26.7 42.9 50.7 41.1 47.8 39.6 23.7 11.4 18.3 24.4 8.73 (WY) 1991 1987 1987 1987 1984 1991 1983 1984 1992 1989 1992 1985 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1991 CALENDAR YEAR FOR 1992 WATER YEAR WATER YEARS 1981 - 1992 ANNUAL TOTAL 4395.0 ANNUAL MEAN 12.0 13.2 HIGHEST ANNUAL MEAN 21.0 1991 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 159 Mar 7 530 Feb 11 1981 LOWEST DAILY MEAN 3.0 Aug 5 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 3.2 Aug 2 0.86 Sep 29 1982 MAXIMUM PEAK FLOW 514 Aug 22 3680 Oct 2 1985 MAXIMUM PEAK STAGE 7.45 Aug 22 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 0.86 0.95 ANNUAL RUNOFF (INCHES) 11.76 12.88 10 PERCENT EXCEEDS 18 23 50 PERCENT EXCEEDS 8.1 7.9 90 PERCENT EXCEEDS 5.1 3.2 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,PUBLISHED Discharge, cubic feet per second WATER YEAR OCTOBER 1992 TO SEPTEMBER 1993 DAILY MEAN VALUES DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP 1 7.8 11 19 22 19 25 43 13 9.8 3.8 3.3 5.0 2 7.7 11 19 20 20 24 36 12 8.6 4.0 8.3 5.5 3 7.8 11 18 19 20 32 32 12 8.3 8.1 14 5.2 4 76 35 17 20 19 100 27 15 7.9 4.6 14 5.1 5 36 38 16 25 17 46 120 17 7.2 3.6 11 8.9 6 19 20 16 47 22 37 70 14 6.9 5.0 7.9 7.7 7 14 16 20 70 58 32 50 12 6.6 8.1 7.6 8.0 8 60 15 17 298 74 29 45 12 6.6 6.4 9.1 8.7 9 114 14 16 100 35 29 40 11 8.4 5.3 8.0 6.7 10 29 13 20 50 29 28 80 11 10 4.7 6.6 5.7 11 39 13 18 53 24 27 48 11 15 3.9 5.6 5.3 12 23 84 16 176 30 26 25 10 22 3.6 5.1 4.9 13 18 72 15 89 40 150 23 10 27 3.7 5.5 4.7 14 15 27 15 46 25 67 23 12 13 3.6 7.5 4.9 15 14 20 14 37 25 45 22 11 11 3.2 6.1 5.3 16 13 18 14 34 30 37 21 11 9.1 4.1 5.1 5.9 17 13 17 23 29 30 34 20 10 7.8 5.0 4.4 7.8 18 12 16 19 26 25 34 20 10 7.1 4.0 4.1 7.5 19 12 14 17 24 23 33 19 12 6.4 3.7 3.8 7.3 20 12 14 16 23 22 30 19 14 5.9 3.4 3.6 21 21 11 112 15 68 24 27 18 11 5.7 3.2 3.4 57 22 11 105 19 43 43 27 18 11 5.9 3.2 3.2 19 23 10 44 17 33 29 94 17 11 5.4 4.1 3.4 10 24 10 59 15 30 24 72 18 10 5.1 5.8 3.4 7.6 25 10 49 14 27 23 43 17 9.3 5.0 6.5 3.1 6.7 26 10 128 14 25 42 85 16 8.8 5.9 5.8 2.7 6.2 27 9.9 47 87 24 32 165 16 8.9 7.6 5.1 2.7 5.9 28 10 29 206 22 28 110 15 8.3 6.1 4.9 2.6 6.0 29 10 24 47 21 --- 50 14 7.9 6.3 4.7 3.7 5.6 30 10 21 32 21 --- 25 13 8.3 4.7 3.8 5.1 5.3 31 11 --- 26 20 --- 65 --- 12 --- 3.4 5.1 --- TOTAL 655.2 1097 837 1542 832 1628 945 346.5 262.3 142.3 179.0 270.4 MEAN 21.1 36.6 27.0 49.7 29.7 52.5 31.5 11.2 8.74 4.59 5.77 9.01 MAX 114 128 206 298 74 165 120 17 27 8.1 14 57 MIN 7.7 11 14 19 17 24 13 7.9 4.7 3.2 2.6 4.7 CFSM 1.52 2.63 1.94 3.58 2.14 3.78 2.27 0.80 0.63 0.33 0.42 0.65 IN. 1.75 2.94 2.24 4.13 2.23 4.36 2.53 0.93 0.70 0.38 0.48 0.72 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1993, BY WATER YEAR (WY) MEAN 11.5 13.6 16.9 22.2 26.2 24.8 17.0 9.69 7.00 6.67 7.77 5.34 MAX 40.3 36.6 42.9 50.7 41.1 52.5 39.6 23.7 11.4 18.3 24.4 9.01 (WY) 1991 1993 1987 1987 1984 1993 1983 1984 1992 1989 1992 1993 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1992 CALENDAR YEAR FOR 1993 WATER YEAR WATER YEARS 1981 - 1993 ANNUAL TOTAL 8736.7 ANNUAL MEAN 23.9 14.0 HIGHEST ANNUAL MEAN 23.9 1993 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 298 Jan 8 530 Feb 11 1981 LOWEST DAILY MEAN 2.6 Aug 28 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 3.0 Aug 22 0.86 Sep 29 1982 MAXIMUM PEAK FLOW 661 Jan 8 3680 Oct 2 1985 MAXIMUM PEAK STAGE 8.62 Jan 8 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 1.72 1.01 ANNUAL RUNOFF (INCHES) 23.38 13.69 10 PERCENT EXCEEDS 49 25 50 PERCENT EXCEEDS 15 8.2 90 PERCENT EXCEEDS 4.8 3.4 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 02196250 HORN CREEK NR COLLIERS (EDGEFIELD), SC SOURCE AGENCY USGS STATE 45 COUNTY 037 LATITUDE 334255 LONGITUDE 0815623 NAD27 DRAINAGE AREA 13.9* CONTRIBUTING DRAINAGE AREA DATUM 320. NGVD29 Date Processed: 2004-08-20 15:13 By mishealy APPROVED DD #3, ,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 5.2 16 12 17 21 31 24 7.4 3.9 5.7 5.0 5.7 2 5.0 13 12 19 20 204 23 7.1 3.8 4.7 5.0 5.5 3 5.0 12 12 30 19 58 21 7.1 3.4 5.6 5.2 12 4 4.9 12 13 49 19 35 20 16 3.0 6.6 6.2 9.4 5 4.7 17 24 29 27 28 19 10 4.1 5.7 5.0 7.5 6 4.6 16 17 23 27 25 18 8.3 4.9 5.2 4.8 6.9 7 4.9 13 15 21 22 22 18 7.3 5.2 4.4 4.7 6.8 8 5.0 13 14 20 38 21 18 6.9 5.8 3.9 4.2 6.4 9 4.8 11 14 19 32 21 18 6.7 5.2 3.6 4.1 6.4 10 4.8 11 16 19 41 58 17 6.4 6.4 3.3 4.0 6.0 11 4.7 10 19 18 67 33 16 6.1 6.2 3.1 3.7 5.9 12 5.2 10 16 66 43 27 16 5.8 4.6 2.9 3.8 5.7 13 5.3 10 15 34 31 24 15 5.3 4.1 3.0 4.1 5.5 14 5.6 11 24 26 24 24 15 5.0 4.8 3.0 4.6 5.5 15 6.1 11 26 21 22 21 14 9.8 4.1 2.9 6.7 5.3 16 6.2 11 20 20 20 21 14 27 3.5 2.7 17 5.3 17 7.0 11 18 23 18 21 14 10 3.8 2.5 15 6.5 18 6.7 12 17 30 18 20 13 6.9 4.8 4.5 12 17 19 6.4 12 17 22 17 20 13 6.2 4.2 4.7 11 12 20 6.2 12 21 20 16 19 12 5.5 3.1 4.3 16 7.9 21 6.2 12 29 20 15 19 12 5.2 2.6 5.5 23 7.0 22 11 12 21 19 17 18 11 4.9 2.3 13 19 6.4 23 15 12 24 19 53 18 11 4.6 2.1 10 12 6.2 24 9.4 12 26 18 156 18 11 4.2 2.5 6.4 9.1 6.4 25 7.8 12 22 17 44 73 10 4.1 2.9 5.2 7.9 6.6 26 7.4 12 20 17 31 30 9.3 4.0 2.4 4.9 7.3 6.5 27 7.3 22 19 17 25 26 8.6 4.1 75 9.5 6.8 6.1 28 7.8 18 18 30 21 24 8.1 3.9 20 9.6 6.5 5.7 29 8.6 14 19 23 --- 73 8.0 3.6 16 6.8 6.4 5.7 30 104 13 18 25 --- 33 7.4 3.6 8.6 5.8 6.1 5.5 31 25 --- 17 23 --- 27 --- 3.7 --- 5.2 5.9 --- TOTAL 317.8 383 575 754 904 1092 434.4 216.7 223.3 164.2 252.1 211.3 MEAN 10.3 12.8 18.5 24.3 32.3 35.2 14.5 6.99 7.44 5.30 8.13 7.04 MAX 104 22 29 66 156 204 24 27 75 13 23 17 MIN 4.6 10 12 17 15 18 7.4 3.6 2.1 2.5 3.7 5.3 CFSM 0.74 0.92 1.33 1.75 2.32 2.53 1.04 0.50 0.54 0.38 0.59 0.51 IN. 0.85 1.03 1.54 2.02 2.42 2.92 1.16 0.58 0.60 0.44 0.67 0.57 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1981 - 1994, BY WATER YEAR (WY) MEAN 11.4 13.6 17.0 22.3 26.6 25.5 16.8 9.50 7.03 6.58 7.79 5.46 MAX 40.3 36.6 42.9 50.7 41.1 52.5 39.6 23.7 11.4 18.3 24.4 9.01 (WY) 1991 1993 1987 1987 1984 1993 1983 1984 1992 1989 1992 1993 MIN 3.24 4.60 5.36 4.77 14.5 7.89 7.12 3.58 2.90 1.84 2.16 1.41 (WY) 1983 1982 1985 1985 1988 1985 1985 1981 1986 1986 1988 1981 SUMMARY STATISTICS FOR 1993 CALENDAR YEAR FOR 1994 WATER YEAR WATER YEARS 1981 - 1994 ANNUAL TOTAL 5527.8 ANNUAL MEAN 15.1 14.1 HIGHEST ANNUAL MEAN 23.9 1993 LOWEST ANNUAL MEAN 7.17 1981 HIGHEST DAILY MEAN 204 Mar 2 530 Feb 11 1981 LOWEST DAILY MEAN 2.1 Jun 23 0.77 Oct 1 1982 ANNUAL SEVEN-DAY MINIMUM 2.6 Jun 20 0.86 Sep 29 1982 MAXIMUM PEAK FLOW 438 Oct 30 3680 Oct 2 1985 MAXIMUM PEAK STAGE 6.82 Oct 30 15.29 Oct 2 1985 ANNUAL RUNOFF (CFSM) 1.09 1.01 ANNUAL RUNOFF (INCHES) 14.79 13.77 10 PERCENT EXCEEDS 26 25 50 PERCENT EXCEEDS 11 8.3 90 PERCENT EXCEEDS 4.1 3.4