1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 --- 1.6 1.5 6.4 0.78 10 0.90 0.25 0.17 0.32 0.34 1.4 2 --- 1.3 1.3 1.1 1.2 1.8 0.73 0.25 0.15 0.75 0.40 0.63 3 --- 0.96 0.83 0.77 1.0 1.1 0.94 0.23 0.15 1.6 0.39 0.53 4 --- 1.1 0.46 0.78 0.77 0.94 0.91 0.35 0.24 0.51 0.34 0.50 5 --- 0.87 0.36 0.75 0.69 0.85 0.74 0.72 0.31 0.37 0.31 0.67 6 --- 0.45 0.37 0.67 1.4 0.75 0.69 0.38 0.20 0.33 0.31 1.6 7 --- 0.46 0.41 0.65 5.2 0.76 0.68 0.31 0.17 0.34 0.32 1.2 8 --- 0.59 0.41 0.64 1.7 3.2 0.67 0.28 0.09 0.29 0.34 0.52 9 --- 0.70 0.49 0.62 0.97 1.5 0.65 0.26 0.08 0.26 0.33 0.26 10 --- 0.85 0.64 0.65 0.74 1.0 0.58 0.23 0.08 0.23 0.48 0.19 11 --- 0.88 1.1 0.61 0.67 0.77 0.54 0.22 0.07 2.3 2.3 0.18 12 --- 0.91 2.2 0.61 0.61 0.78 0.50 0.51 0.07 3.6 0.62 3.0 13 --- 1.0 0.84 0.59 0.49 0.74 0.46 0.46 0.09 1.2 0.44 2.7 14 --- 0.81 0.56 0.58 0.49 0.75 0.49 1.3 1.4 0.57 0.38 0.80 15 --- 1.2 0.61 0.66 0.48 0.71 0.89 0.87 0.46 0.43 0.40 0.58 16 --- 1.1 0.54 1.0 4.5 0.69 0.62 0.44 0.66 0.36 0.42 0.58 17 --- 2.2 0.55 1.5 1.5 0.65 0.56 0.34 0.80 0.34 0.43 0.61 18 --- 1.4 0.61 3.4 0.91 0.76 0.55 0.29 0.36 0.33 0.43 0.66 19 --- 0.97 0.58 5.8 0.65 2.0 0.45 0.26 2.4 0.37 0.42 0.88 20 --- 4.6 0.52 1.3 0.52 1.0 0.42 0.26 0.76 0.33 0.41 1.0 21 --- 2.3 0.48 1.2 0.54 0.75 0.39 0.27 0.44 0.34 0.39 0.76 22 --- 1.7 0.49 13 1.1 0.62 0.38 0.29 0.38 0.31 0.36 0.68 23 0.26 1.5 0.98 2.1 0.83 0.60 0.36 0.25 0.44 0.32 0.32 0.65 24 0.25 1.3 3.4 1.2 0.60 0.61 0.38 0.23 0.35 0.41 0.33 0.61 25 0.35 1.2 0.81 2.0 0.51 4.0 0.36 0.21 0.55 0.52 0.34 0.58 26 0.41 1.3 0.53 1.4 0.65 1.7 0.35 0.20 0.75 0.40 0.30 0.57 27 0.41 1.3 0.50 1.1 4.0 1.2 0.32 0.23 0.51 0.35 0.29 0.57 28 0.40 1.2 0.50 1.0 5.9 1.1 0.30 0.29 0.32 0.36 0.24 0.59 29 0.39 1.2 0.49 0.95 --- 1.5 0.28 0.22 0.26 0.34 0.25 0.61 30 0.39 4.0 0.49 0.96 --- 3.5 0.27 0.19 0.25 0.36 0.34 1.4 31 0.87 --- 0.54 0.85 --- 2.0 --- 0.17 --- 0.35 1.2 --- TOTAL --- 40.95 24.09 54.84 39.40 48.33 16.36 10.76 12.96 18.89 14.17 25.51 MEAN --- 1.36 0.78 1.77 1.41 1.56 0.55 0.35 0.43 0.61 0.46 0.85 MAX --- 4.6 3.4 13 5.9 10 0.94 1.3 2.4 3.6 2.3 3.0 MIN --- 0.45 0.36 0.58 0.48 0.60 0.27 0.17 0.07 0.23 0.24 0.18 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 0.92 1.2 0.86 0.79 0.90 0.51 0.46 0.33 0.18 0.49 0.21 0.26 2 0.76 1.3 0.81 2.0 0.69 0.47 0.46 0.30 0.17 0.30 0.23 0.37 3 0.78 1.4 0.85 1.9 0.78 0.51 0.44 0.29 0.17 0.28 0.24 0.32 4 0.78 1.5 0.84 1.3 0.95 1.2 0.42 0.36 0.18 0.28 0.21 0.37 5 0.76 1.5 0.81 0.90 0.82 0.67 0.39 0.37 0.17 0.26 0.21 0.42 6 0.78 1.4 0.81 0.73 0.70 0.58 1.2 0.29 0.17 0.23 0.20 0.28 7 0.79 1.3 0.82 0.84 0.69 0.53 0.60 0.26 0.30 0.22 0.20 0.25 8 0.78 1.3 0.82 0.96 0.71 0.50 0.44 0.25 1.1 0.23 0.24 0.41 9 0.79 1.4 0.79 0.92 0.72 0.63 0.40 0.25 1.7 0.23 0.27 4.0 10 0.80 1.8 0.82 1.0 0.67 2.2 0.37 0.31 1.6 0.22 0.21 0.52 11 0.77 1.6 0.80 1.0 0.66 0.72 1.1 0.78 0.38 0.22 0.77 0.35 12 0.81 1.3 0.76 0.98 0.70 0.60 1.8 0.28 0.29 0.23 0.31 0.29 13 0.79 1.2 0.77 1.0 0.70 0.55 0.57 0.28 0.26 0.22 0.23 0.27 14 0.79 1.1 0.78 0.95 0.61 0.51 0.43 0.30 0.24 0.21 0.23 0.26 15 0.80 1.1 0.95 0.90 0.66 0.51 0.38 0.25 0.23 0.20 0.22 0.26 16 0.80 1.2 0.83 0.87 0.69 0.50 0.34 0.24 0.23 0.20 0.21 0.26 17 0.80 2.9 0.76 1.2 0.59 0.50 0.31 0.26 0.22 0.19 0.20 0.34 18 0.82 2.2 0.76 1.4 0.64 0.58 0.66 0.25 0.22 0.18 0.20 0.40 19 0.85 1.2 0.76 1.1 3.0 0.67 4.5 0.23 0.21 0.17 0.19 0.32 20 0.92 1.1 0.79 1.6 0.99 0.52 0.92 0.23 0.20 0.17 0.19 0.28 21 1.0 1.0 0.84 1.0 0.79 0.48 0.46 0.21 0.20 0.16 0.19 0.27 22 1.1 1.0 1.1 3.4 0.62 0.48 0.37 0.20 0.20 0.16 0.20 0.26 23 1.1 1.0 0.83 1.2 0.65 0.48 1.0 0.21 0.19 0.24 0.21 0.25 24 1.2 0.99 0.75 0.96 0.51 0.49 1.0 0.30 0.20 0.22 0.21 0.26 25 1.3 0.95 0.81 1.8 0.63 0.52 0.81 0.48 0.21 0.18 0.20 0.78 26 1.4 0.99 0.79 1.6 0.60 0.59 0.84 0.34 0.25 0.17 0.18 0.63 27 1.8 1.0 0.76 1.1 0.60 0.57 0.47 0.25 2.5 0.16 0.18 0.36 28 1.3 0.98 0.94 1.1 0.59 0.48 0.38 0.22 0.37 0.19 0.25 0.28 29 1.1 0.94 0.89 1.0 0.54 0.47 0.36 0.20 0.27 0.41 0.78 0.27 30 1.1 0.89 0.76 0.96 --- 0.44 0.35 0.19 0.85 0.32 0.48 0.27 31 1.1 --- 0.76 1.1 --- 0.46 --- 0.18 --- 0.22 0.30 --- TOTAL 29.59 38.74 25.42 37.56 22.40 18.92 22.23 8.89 13.46 7.16 8.15 13.86 MEAN 0.95 1.29 0.82 1.21 0.77 0.61 0.74 0.29 0.45 0.23 0.26 0.46 MAX 1.8 2.9 1.1 3.4 3.0 2.2 4.5 0.78 2.5 0.49 0.78 4.0 MIN 0.76 0.89 0.75 0.73 0.51 0.44 0.31 0.18 0.17 0.16 0.18 0.25 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 0.27 0.53 0.37 0.83 0.31 0.41 0.35 0.68 0.24 0.45 0.57 0.33 2 0.27 0.43 0.38 0.42 0.33 0.80 0.34 0.59 0.24 0.38 0.59 0.31 3 1.2 0.40 0.37 0.96 0.33 1.9 0.35 0.35 0.24 0.59 0.53 0.31 4 0.57 0.40 0.37 0.53 0.32 0.60 0.35 0.31 0.24 1.7 0.48 0.30 5 0.34 0.64 0.37 0.39 0.33 0.55 0.37 0.36 0.25 1.9 0.45 0.35 6 0.29 0.44 0.37 0.37 0.40 0.41 0.36 0.39 0.25 0.66 0.40 0.35 7 0.28 0.40 0.37 0.34 0.35 0.36 0.39 0.30 0.25 0.50 0.39 0.34 8 0.28 0.39 0.37 0.33 0.33 0.37 0.53 0.28 0.25 0.43 0.39 0.34 9 0.28 0.38 0.40 0.45 0.32 0.36 1.6 0.45 2.2 0.39 0.43 0.39 10 0.24 0.38 0.38 0.40 0.36 0.36 4.2 0.86 0.45 0.39 0.44 0.37 11 0.25 0.42 0.38 0.36 0.34 0.35 1.5 0.39 0.30 0.37 0.38 0.51 12 0.25 0.39 0.38 0.32 0.33 0.35 0.58 0.36 0.27 0.48 0.35 0.61 13 0.25 0.38 0.37 0.34 0.32 0.47 0.51 0.32 0.25 1.1 0.36 0.57 14 0.26 0.39 0.37 0.31 0.32 0.38 0.40 0.30 0.24 0.50 0.37 0.52 15 0.27 0.40 0.38 0.32 0.33 0.37 1.0 0.37 0.25 0.83 0.57 0.49 16 0.27 0.36 0.51 0.34 0.33 0.42 0.52 0.30 0.32 1.2 0.56 0.45 17 0.27 0.41 0.41 0.34 0.34 0.38 0.41 0.28 0.33 0.62 0.43 0.41 18 0.27 0.36 0.37 0.31 0.37 0.36 0.38 0.27 0.28 0.51 0.40 0.37 19 0.27 0.36 0.36 0.31 0.37 0.34 0.36 0.27 1.6 1.6 0.40 0.34 20 0.28 0.37 0.35 0.31 0.41 0.35 0.56 0.27 2.2 4.5 0.39 0.33 21 0.41 0.35 0.35 0.31 1.6 0.37 0.40 0.26 2.1 1.7 0.34 3.1 22 0.34 0.35 0.35 0.32 1.0 0.39 0.36 0.26 1.3 0.72 0.34 1.7 23 0.32 0.46 0.35 0.32 0.48 2.2 0.35 0.28 0.54 2.0 0.34 0.34 24 0.34 0.43 0.35 0.31 0.50 1.5 0.34 0.28 1.0 1.2 0.32 0.35 25 0.32 0.35 0.34 0.32 0.44 0.48 0.33 0.25 2.1 0.59 0.32 0.50 26 0.33 0.35 0.34 0.31 0.37 0.41 0.32 0.25 0.57 0.56 0.39 0.47 27 0.36 0.34 0.34 0.44 0.36 0.42 0.30 0.25 0.44 0.55 0.41 0.48 28 0.42 0.36 0.36 0.33 0.80 0.39 0.28 0.24 0.41 1.2 0.34 0.49 29 0.38 0.34 0.34 0.31 --- 0.37 0.29 0.24 0.66 0.51 0.34 0.43 30 0.36 0.35 0.34 0.34 --- 0.41 0.30 0.25 0.68 0.56 0.33 0.36 31 0.48 --- 0.65 0.33 --- 0.37 --- 0.24 --- 0.78 0.33 --- TOTAL 10.72 11.91 11.74 11.92 12.39 17.20 18.33 10.50 20.45 29.47 12.68 16.21 MEAN 0.35 0.40 0.38 0.38 0.44 0.55 0.61 0.34 0.68 0.95 0.41 0.54 MAX 1.2 0.64 0.65 0.96 1.6 2.2 4.2 0.86 2.2 4.5 0.59 3.1 MIN 0.24 0.34 0.34 0.31 0.31 0.34 0.28 0.24 0.24 0.37 0.32 0.30 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 2.4 0.73 0.31 0.67 0.53 0.51 0.41 0.52 0.79 0.52 0.38 0.37 2 0.83 0.82 0.32 0.46 0.55 0.51 0.41 0.54 0.79 0.49 0.39 0.35 3 1.0 0.80 0.33 0.44 0.56 0.49 0.85 0.54 0.78 0.47 0.41 0.33 4 0.39 0.77 0.36 0.46 0.68 0.47 0.40 0.54 0.77 0.46 0.40 0.32 5 0.38 0.88 0.36 0.48 0.73 0.45 0.42 0.55 0.74 0.42 0.39 0.32 6 0.36 0.83 0.37 0.79 0.64 0.45 0.41 0.56 0.71 0.38 0.38 0.30 7 0.37 0.95 1.1 1.2 0.68 0.42 0.46 0.53 0.67 0.40 0.45 0.29 8 0.39 1.1 3.4 1.6 0.62 0.41 0.45 0.51 1.0 0.40 0.62 0.28 9 0.38 1.8 1.6 1.4 0.75 0.44 0.45 0.52 0.87 0.40 0.42 0.30 10 0.40 2.7 0.57 0.53 0.73 0.41 0.49 0.61 0.77 0.40 0.45 0.27 11 0.44 1.4 0.47 0.40 0.61 0.37 0.55 0.52 0.74 0.42 0.43 0.26 12 0.46 1.1 1.2 0.41 0.58 0.38 0.54 0.51 0.71 0.60 0.40 0.28 13 0.47 1.1 0.80 0.39 0.58 0.33 0.53 0.54 0.70 0.65 0.40 0.25 14 0.49 0.95 0.49 0.40 0.58 0.32 0.53 0.57 0.70 0.68 0.41 0.32 15 0.76 1.8 0.47 0.40 0.55 0.33 0.54 0.57 0.73 0.70 0.40 0.35 16 0.63 1.1 0.47 0.39 0.90 0.33 0.57 0.58 0.95 0.59 0.40 0.32 17 0.68 0.78 0.43 0.40 0.63 0.44 0.56 0.57 0.91 0.57 0.40 0.30 18 0.88 0.71 0.46 0.41 0.64 0.35 0.55 0.57 0.83 1.0 0.48 0.32 19 0.77 0.80 0.74 0.47 0.75 0.30 0.54 0.57 0.72 0.85 0.47 0.29 20 0.69 0.70 0.54 0.50 0.50 0.29 0.53 0.61 0.66 0.75 0.47 0.27 21 0.68 0.62 0.45 0.61 0.59 0.28 0.55 0.61 0.67 0.64 0.67 0.26 22 0.68 0.55 0.44 0.54 0.69 1.2 0.56 0.59 0.70 0.63 30 0.30 23 0.67 0.71 0.42 0.52 0.58 0.90 0.54 0.63 0.67 0.72 1.1 0.31 24 0.65 0.41 0.44 0.57 0.51 1.3 0.53 0.65 0.65 0.64 0.59 0.28 25 0.62 0.37 0.45 0.69 0.52 0.36 0.52 0.67 0.63 0.80 0.45 0.28 26 0.62 0.34 0.46 0.85 0.53 0.40 0.50 0.67 0.61 1.2 0.44 0.28 27 0.60 0.32 0.45 0.62 0.55 0.37 0.49 0.66 0.59 0.63 0.41 0.27 28 0.61 0.36 0.45 0.65 0.53 0.36 0.50 0.81 0.56 0.60 0.40 0.27 29 0.61 0.48 0.46 0.60 --- 0.46 0.58 0.83 0.55 0.62 0.32 0.28 30 0.70 0.32 0.43 0.54 --- 0.41 0.52 0.83 0.54 0.60 0.33 0.31 31 0.70 --- 0.69 0.56 --- 0.48 --- 0.81 --- 0.59 0.45 --- TOTAL 20.31 26.30 19.93 18.95 17.29 14.52 15.48 18.79 21.71 18.82 43.71 8.93 MEAN 0.66 0.88 0.64 0.61 0.62 0.47 0.52 0.61 0.72 0.61 1.41 0.30 MAX 2.4 2.7 3.4 1.6 0.90 1.3 0.85 0.83 1.0 1.2 30 0.37 MIN 0.36 0.32 0.31 0.39 0.50 0.28 0.40 0.51 0.54 0.38 0.32 0.25 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 0.31 0.28 0.30 0.36 0.43 0.29 0.58 0.85 0.90 0.60 22 1.8 2 0.30 0.26 0.28 0.32 0.37 2.0 0.53 0.70 0.50 0.58 29 1.6 3 0.29 0.25 0.28 0.31 0.35 9.4 0.50 0.82 0.42 0.62 0.99 1.7 4 0.30 0.25 0.70 0.30 0.33 1.3 0.50 0.70 0.73 2.1 0.60 1.7 5 0.32 0.24 0.28 0.28 0.33 0.49 3.6 1.3 0.58 1.9 0.45 1.6 6 0.30 0.24 0.27 0.30 0.35 0.48 0.76 2.8 0.58 0.96 0.47 1.6 7 0.30 0.23 0.35 0.36 0.34 0.50 0.59 1.1 0.48 1.0 0.49 3.6 8 0.31 0.23 0.42 0.32 0.35 0.48 0.66 3.5 0.46 0.56 0.52 3.6 9 0.32 0.70 0.31 0.29 0.36 0.38 0.74 1.3 0.45 0.48 0.63 1.6 10 7.3 1.3 0.27 0.86 0.36 0.38 0.63 1.1 0.49 0.52 2.0 1.5 11 7.7 0.50 0.25 2.4 0.48 0.37 0.58 0.58 0.47 0.51 1.8 1.5 12 40 0.35 0.25 0.86 5.1 0.40 0.56 0.61 0.46 0.45 2.4 1.5 13 1.2 0.30 0.26 0.60 0.43 0.82 0.56 0.80 0.44 0.46 1.1 2.2 14 0.39 0.28 0.27 0.30 0.29 0.56 0.56 0.65 1.4 0.46 1.7 1.5 15 0.25 0.28 0.28 0.60 0.25 0.48 0.53 0.57 1.3 0.47 1.8 1.4 16 0.22 0.29 0.27 0.96 0.24 0.39 0.55 0.56 0.63 2.3 1.5 1.4 17 0.26 0.27 0.25 0.68 0.24 0.42 0.52 0.55 0.60 1.3 0.75 1.4 18 0.29 0.28 0.27 0.25 0.27 0.49 0.52 0.51 0.71 5.9 0.85 1.4 19 0.27 0.28 0.32 1.6 0.27 5.0 0.71 0.52 0.64 1.2 1.0 1.4 20 0.26 0.29 0.38 1.7 0.25 0.63 0.59 0.57 0.67 1.0 1.7 1.4 21 0.28 0.28 0.33 0.75 0.25 0.46 0.55 0.56 0.85 1.0 1.8 1.4 22 2.0 0.27 0.30 0.45 0.25 0.44 0.53 0.56 0.62 1.2 1.8 15 23 20 0.27 0.29 0.62 0.40 0.43 0.54 0.54 0.55 1.0 1.1 18 24 2.6 0.29 0.27 2.5 0.27 0.43 0.48 0.53 0.48 1.2 8.1 15 25 1.9 0.26 0.25 1.4 0.24 0.40 0.41 0.56 0.46 1.6 15 10 26 1.8 0.26 0.24 0.78 0.26 0.38 0.50 0.52 0.51 1.9 8.6 16 27 1.7 0.28 0.25 0.70 0.28 0.38 2.8 0.81 0.90 5.0 2.6 14 28 0.39 0.30 0.27 0.83 0.25 0.38 3.3 0.75 0.77 7.0 1.8 2.7 29 0.35 0.28 0.27 0.96 --- 1.9 1.2 0.51 0.79 10 1.8 1.3 30 0.32 0.26 0.28 5.5 --- 2.8 3.0 0.56 0.62 13 2.0 1.7 31 0.30 --- 0.29 0.58 --- 0.66 --- 0.64 --- 17 2.1 --- TOTAL 92.53 9.85 9.30 28.72 13.59 33.92 28.08 26.63 19.46 83.27 118.45 130.5 MEAN 2.98 0.33 0.30 0.93 0.49 1.09 0.94 0.86 0.65 2.69 3.82 4.35 MAX 40 1.3 0.70 5.5 5.1 9.4 3.6 3.5 1.4 17 29 18 MIN 0.22 0.23 0.24 0.25 0.24 0.29 0.41 0.51 0.42 0.45 0.45 1.3 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1991, BY WATER YEAR (WY) MEAN 1.24 0.85 0.58 0.98 0.75 0.86 0.67 0.49 0.59 1.02 1.27 1.30 MAX 2.98 1.37 0.82 1.77 1.41 1.56 0.94 0.86 0.72 2.69 3.82 4.35 (WY) 1991 1987 1988 1987 1987 1987 1991 1991 1990 1991 1991 1991 MIN 0.35 0.33 0.30 0.38 0.44 0.47 0.52 0.29 0.43 0.23 0.26 0.30 (WY) 1989 1991 1991 1989 1989 1990 1990 1988 1987 1988 1988 1990 SUMMARY STATISTICS FOR 1990 CALENDAR YEAR FOR 1991 WATER YEAR WATER YEARS 1987 - 1991 ANNUAL TOTAL 686.51 594.30 ANNUAL MEAN 1.88 1.63 0.87 HIGHEST ANNUAL MEAN 1.63 1991 LOWEST ANNUAL MEAN 0.50 1989 HIGHEST DAILY MEAN 40 Oct 12 40 Oct 12 40 Oct 12 1990 LOWEST DAILY MEAN 0.22 Oct 16 0.22 Oct 16 0.07 Jun 11 1987 ANNUAL SEVEN-DAY MINIMUM 0.24 Nov 2 0.24 Nov 2 0.09 Jun 7 1987 MAXIMUM PEAK FLOW 0.00 Oct 12 0.00 Oct 12 1990 MAXIMUM PEAK STAGE 5.90 Oct 12 5.90 Oct 12 1990 10 PERCENT EXCEEDS 4.1 2.6 1.4 50 PERCENT EXCEEDS 1.3 0.55 0.49 90 PERCENT EXCEEDS 0.28 0.27 0.26 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 1.8 1.2 0.94 1.5 1.4 1.3 4.3 1.1 1.6 1.8 0.82 1.1 2 0.99 1.2 0.92 1.4 1.4 1.3 3.8 1.0 1.6 6.8 0.72 1.1 3 0.99 1.2 1.8 2.1 1.4 1.3 3.5 1.1 3.9 1.3 0.71 1.1 4 1.1 1.1 1.5 1.8 1.3 1.1 4.4 1.1 1.5 0.87 0.63 1.1 5 1.2 1.1 1.0 1.5 1.4 1.2 3.2 1.1 1.4 0.69 0.81 1.5 6 1.2 1.1 0.91 1.6 1.8 5.8 3.5 2.2 1.4 0.80 1.6 1.5 7 1.2 1.1 0.91 1.5 1.6 3.8 3.9 1.8 1.5 0.77 1.5 1.4 8 1.2 1.2 0.93 1.5 1.4 2.4 3.8 2.0 7.1 0.72 1.3 1.3 9 1.0 2.7 0.94 1.5 1.3 1.8 3.5 1.3 4.8 0.70 1.0 1.3 10 1.0 3.6 0.96 1.4 1.3 2.9 4.4 1.3 0.82 0.71 1.1 1.2 11 1.1 1.8 0.98 1.5 1.9 3.2 5.2 1.6 1.0 0.77 1.2 1.6 12 1.1 1.5 1.0 1.4 1.3 2.5 5.3 1.6 2.9 0.80 1.3 1.5 13 1.0 1.4 0.99 9.2 1.4 4.1 5.1 1.7 0.99 0.80 4.7 1.2 14 1.0 1.4 1.0 7.9 1.4 4.5 3.5 1.7 1.8 0.83 5.0 1.1 15 1.2 1.4 1.0 2.5 2.2 4.5 2.7 1.5 0.80 0.81 3.3 1.1 16 1.3 1.4 1.0 1.9 2.0 4.1 3.0 1.4 0.82 0.87 2.2 1.1 17 1.2 1.3 1.1 1.8 5.1 3.9 2.8 1.7 0.85 1.1 2.2 1.1 18 1.2 1.3 1.1 1.9 3.5 4.1 3.7 1.6 0.67 2.3 2.2 1.3 19 1.2 1.3 1.1 6.8 2.2 6.6 4.0 1.6 0.95 1.2 5.7 1.2 20 1.2 0.98 1.1 3.3 1.7 4.7 3.4 1.8 0.99 0.93 5.3 1.3 21 1.2 1.3 1.1 4.1 1.6 3.8 3.1 1.9 0.92 0.97 0.88 1.3 22 1.2 0.92 1.3 1.7 3.5 3.9 0.81 1.7 0.92 1.8 1.0 1.3 23 1.2 0.96 1.4 6.8 6.7 4.5 0.61 1.8 0.87 1.5 1.1 1.3 24 1.1 0.96 2.4 3.1 4.2 4.1 0.66 1.7 0.90 0.99 1.0 1.9 25 1.1 0.96 1.6 2.5 2.5 4.4 0.80 1.7 1.0 0.90 0.98 1.6 26 1.2 0.92 1.4 2.4 2.0 6.3 0.80 2.4 0.98 0.91 1.1 1.5 27 1.3 0.90 1.3 1.7 1.6 3.5 0.91 2.0 1.3 0.92 1.1 1.6 28 1.3 0.90 6.5 1.4 1.6 2.7 1.0 1.8 1.3 1.2 1.4 1.4 29 1.2 0.94 5.1 1.4 1.4 2.5 0.95 2.0 1.0 1.1 1.1 1.3 30 1.2 0.96 1.7 1.4 --- 5.5 1.0 2.4 1.2 1.1 1.1 1.2 31 1.2 --- 1.5 1.5 --- 5.2 --- 1.7 --- 0.90 1.1 --- TOTAL 36.38 39.00 46.48 82.0 62.1 111.5 87.64 51.3 47.78 37.86 55.15 39.5 MEAN 1.17 1.30 1.50 2.65 2.14 3.60 2.92 1.65 1.59 1.22 1.78 1.32 MAX 1.8 3.6 6.5 9.2 6.7 6.6 5.3 2.4 7.1 6.8 5.7 1.9 MIN 0.99 0.90 0.91 1.4 1.3 1.1 0.61 1.0 0.67 0.69 0.63 1.1 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1992, BY WATER YEAR (WY) MEAN 1.22 0.93 0.74 1.26 0.98 1.31 1.05 0.68 0.75 1.05 1.36 1.30 MAX 2.98 1.37 1.50 2.65 2.14 3.60 2.92 1.65 1.59 2.69 3.82 4.35 (WY) 1991 1987 1992 1992 1992 1992 1992 1992 1992 1991 1991 1991 MIN 0.35 0.33 0.30 0.38 0.44 0.47 0.52 0.29 0.43 0.23 0.26 0.30 (WY) 1989 1991 1991 1989 1989 1990 1990 1988 1987 1988 1988 1990 SUMMARY STATISTICS FOR 1991 CALENDAR YEAR FOR 1992 WATER YEAR WATER YEARS 1987 - 1992 ANNUAL TOTAL 0.00 696.69 ANNUAL MEAN 0.000 1.90 1.08 HIGHEST ANNUAL MEAN 1.90 1992 LOWEST ANNUAL MEAN 0.50 1989 HIGHEST DAILY MEAN 16 Jan 8 9.2 Jan 13 40 Oct 12 1990 LOWEST DAILY MEAN 0.75 Aug 2 0.61 Apr 23 0.07 Jun 11 1987 ANNUAL SEVEN-DAY MINIMUM 0.77 Jul 25 0.74 Jul 5 0.09 Jun 7 1987 MAXIMUM PEAK FLOW 0.00 Dec 28 0.00 Oct 12 1990 MAXIMUM PEAK STAGE 3.29 Dec 28 5.90 Oct 12 1990 10 PERCENT EXCEEDS 3.5 4.1 1.8 50 PERCENT EXCEEDS 1.2 1.3 0.58 90 PERCENT EXCEEDS 0.88 0.91 0.27 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 1.5 3.9 3.5 6.4 3.0 2.5 3.5 1.4 1.3 0.98 0.84 0.89 2 1.3 4.2 3.5 6.8 3.0 2.6 2.9 1.4 5.8 0.94 0.75 0.89 3 7.0 4.2 3.8 7.2 3.0 3.8 2.7 1.2 1.3 0.92 0.77 0.91 4 5.0 4.3 3.9 7.6 3.0 6.9 2.7 1.8 0.97 0.89 0.80 0.91 5 0.51 4.3 4.2 8.1 3.2 3.1 5.2 1.7 0.96 0.84 0.82 1.9 6 0.42 4.1 4.7 9.1 3.9 2.9 3.2 1.4 0.94 0.84 0.79 6.5 7 0.55 4.0 5.3 11 5.2 2.8 2.7 1.3 0.85 1.8 1.6 1.1 8 0.63 3.9 4.9 16 3.9 2.7 1.8 1.2 0.84 1.6 1.4 1.1 9 6.9 3.9 4.5 4.3 3.1 2.6 1.1 1.2 0.81 1.0 1.1 0.98 10 3.0 4.0 6.6 3.5 3.3 2.6 1.3 1.2 0.83 0.98 1.0 0.94 11 3.0 3.9 5.1 3.6 3.0 2.7 1.0 1.2 1.5 0.94 1.0 0.90 12 2.8 5.5 5.1 6.2 2.9 2.5 0.98 1.2 1.4 0.91 1.0 0.92 13 2.6 4.1 5.0 4.2 2.9 6.1 0.97 1.2 2.6 0.92 0.97 0.90 14 2.9 3.2 4.9 3.4 2.7 3.1 0.91 1.2 1.4 0.87 1.1 0.93 15 3.0 3.1 4.9 3.3 2.7 2.7 0.97 1.1 1.1 0.81 1.3 0.91 16 3.1 3.3 5.0 3.3 3.6 2.5 0.92 1.1 1.1 0.88 0.99 0.93 17 3.1 3.3 5.7 3.0 3.1 3.6 0.93 1.1 1.1 0.86 0.92 4.7 18 3.3 3.3 5.5 3.1 2.7 2.8 0.87 1.1 1.1 0.85 0.86 2.3 19 3.5 3.2 5.4 3.0 2.6 2.5 0.90 1.3 1.0 1.0 0.83 1.2 20 3.8 3.2 6.2 3.0 2.6 2.4 1.1 1.3 1.0 1.3 0.83 1.9 21 3.6 7.6 6.3 5.0 2.7 2.4 1.2 1.1 1.0 0.89 0.87 3.6 22 3.7 6.2 6.5 3.4 3.1 2.4 1.5 1.1 0.96 0.87 1.2 1.3 23 3.8 4.1 6.6 3.0 2.7 4.3 1.6 1.1 0.94 0.81 0.99 1.1 24 3.8 3.5 6.6 3.5 2.5 3.7 1.6 1.1 0.91 0.79 0.90 1.1 25 3.9 3.5 6.7 3.3 2.5 2.6 1.5 1.1 1.1 0.78 0.83 1.1 26 3.9 5.6 6.8 3.0 3.4 6.9 1.5 1.1 1.2 0.76 0.81 1.1 27 3.9 3.7 7.0 3.0 2.8 4.6 1.5 1.1 1.1 0.77 0.80 1.1 28 3.9 3.4 7.5 2.8 2.6 3.0 1.4 1.1 1.0 0.77 0.83 1.1 29 4.1 3.4 7.1 2.8 --- 2.6 1.4 1.1 1.1 0.77 0.88 1.1 30 4.2 3.5 6.6 2.8 --- 2.5 1.4 1.3 1.1 0.76 0.89 1.1 31 4.0 --- 6.2 2.8 --- 7.3 --- 1.4 --- 0.76 0.89 --- TOTAL 100.71 121.4 171.6 151.5 85.7 105.7 51.25 38.2 38.31 28.86 29.56 45.41 MEAN 3.25 4.05 5.54 4.89 3.06 3.41 1.71 1.23 1.28 0.93 0.95 1.51 MAX 7.0 7.6 7.5 16 5.2 7.3 5.2 1.8 5.8 1.8 1.6 6.5 MIN 0.42 3.1 3.5 2.8 2.5 2.4 0.87 1.1 0.81 0.76 0.75 0.89 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1993, BY WATER YEAR (WY) MEAN 1.56 1.37 1.42 1.78 1.28 1.61 1.14 0.76 0.83 1.03 1.30 1.33 MAX 3.25 4.05 5.54 4.89 3.06 3.60 2.92 1.65 1.59 2.69 3.82 4.35 (WY) 1993 1993 1993 1993 1993 1992 1992 1992 1992 1991 1991 1991 MIN 0.35 0.33 0.30 0.38 0.44 0.47 0.52 0.29 0.43 0.23 0.26 0.30 (WY) 1989 1991 1991 1989 1989 1990 1990 1988 1987 1988 1988 1990 SUMMARY STATISTICS FOR 1992 CALENDAR YEAR FOR 1993 WATER YEAR WATER YEARS 1987 - 1993 ANNUAL TOTAL 758.90 968.20 ANNUAL MEAN 2.08 2.65 1.34 HIGHEST ANNUAL MEAN 2.65 1993 LOWEST ANNUAL MEAN 0.50 1989 HIGHEST DAILY MEAN 7.6 Nov 21 16 Jan 8 40 Oct 12 1990 LOWEST DAILY MEAN 0.42 Oct 6 0.42 Oct 6 0.07 Jun 11 1987 ANNUAL SEVEN-DAY MINIMUM 0.89 Aug 6 0.77 Jul 25 0.09 Jun 7 1987 MAXIMUM PEAK STAGE 5.34 Sep 6 5.90 Oct 12 1990 10 PERCENT EXCEEDS 4.3 5.4 3.0 50 PERCENT EXCEEDS 1.4 2.5 0.70 90 PERCENT EXCEEDS 0.98 0.87 0.28 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 0.98 1.1 1.4 1.5 1.5 1.9 1.2 1.0 0.64 1.1 1.0 1.1 2 0.94 1.1 1.1 1.7 1.4 4.7 1.1 1.0 0.81 0.98 1.0 5.6 3 0.99 1.1 1.0 1.9 1.4 2.0 1.1 1.1 1.1 0.98 0.95 1.9 4 0.93 1.1 1.0 2.0 1.3 1.6 1.1 1.1 1.2 1.2 0.93 1.4 5 0.93 1.5 1.2 1.5 2.2 1.5 1.1 1.1 1.2 1.1 0.90 1.2 6 0.93 1.3 1.1 1.4 1.7 1.5 1.1 1.1 1.4 1.0 0.89 1.1 7 0.97 1.2 1.0 1.4 1.5 1.4 1.2 1.1 1.6 0.94 0.89 1.1 8 0.95 1.2 1.1 1.4 1.7 1.5 1.1 1.1 1.4 0.93 0.89 1.1 9 0.94 1.4 1.1 1.4 1.6 1.4 1.1 1.1 1.3 0.93 0.89 1.2 10 0.98 1.6 1.2 1.3 1.7 2.2 1.1 1.1 1.3 0.92 0.89 1.2 11 0.99 1.7 1.2 1.4 1.6 1.6 1.1 1.1 1.3 0.89 0.89 1.2 12 0.95 1.7 1.1 2.0 1.5 1.5 1.1 1.1 1.3 0.89 0.89 1.1 13 0.93 1.7 1.1 1.5 1.5 1.4 1.3 1.1 1.3 1.2 1.1 1.1 14 0.93 1.9 1.4 1.5 1.4 1.7 1.1 1.1 1.5 1.1 1.3 1.1 15 0.99 1.8 1.3 1.4 1.4 1.4 1.0 1.1 1.5 0.94 1.0 1.1 16 1.0 1.9 1.2 1.4 1.4 1.2 1.0 1.6 1.4 0.90 1.4 1.1 17 1.1 2.0 1.3 1.7 1.4 1.1 1.0 1.2 1.3 0.86 1.7 1.2 18 0.99 1.9 1.3 1.8 1.4 1.1 1.0 1.2 1.3 0.86 1.5 1.4 19 0.98 1.9 1.3 1.5 1.3 1.1 1.0 1.2 1.3 0.89 1.5 1.5 20 0.98 1.9 1.1 1.5 1.2 1.1 1.0 1.2 1.3 0.90 1.2 1.3 21 1.0 1.8 1.4 1.5 1.2 1.1 1.0 1.2 1.2 0.95 1.9 1.3 22 1.1 1.8 1.3 1.5 1.2 1.1 1.1 1.2 2.2 1.0 1.5 1.3 23 1.2 1.8 1.5 1.5 1.5 1.1 1.2 1.3 2.2 1.2 1.1 1.2 24 1.2 1.8 1.4 1.5 3.1 1.5 1.0 1.2 1.5 1.0 1.1 1.5 25 1.2 1.8 1.3 1.5 1.8 4.0 1.0 1.3 1.3 0.94 1.0 1.4 26 1.3 1.7 1.3 1.5 1.6 1.4 1.0 1.3 1.3 0.93 1.0 1.3 27 1.3 3.2 1.3 1.9 1.5 1.2 0.99 1.3 4.0 1.1 0.98 1.3 28 1.3 1.6 1.5 1.5 1.5 1.3 1.0 1.3 1.4 1.4 0.98 1.3 29 1.4 5.4 1.3 1.9 --- 2.1 1.0 1.9 1.2 1.1 0.98 1.2 30 4.0 1.6 1.3 4.3 --- 1.3 1.0 1.7 1.2 1.0 0.98 1.2 31 1.3 --- 1.4 1.6 --- 1.2 --- 1.3 --- 1.0 0.99 --- TOTAL 35.68 53.5 38.5 51.4 43.5 50.2 32.09 37.7 42.95 31.13 34.22 42.0 MEAN 1.15 1.78 1.24 1.66 1.55 1.62 1.07 1.22 1.43 1.00 1.10 1.40 MAX 4.0 5.4 1.5 4.3 3.1 4.7 1.3 1.9 4.0 1.4 1.9 5.6 MIN 0.93 1.1 1.0 1.3 1.2 1.1 0.99 1.0 0.64 0.86 0.89 1.1 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1994, BY WATER YEAR (WY) MEAN 1.50 1.42 1.40 1.76 1.31 1.61 1.13 0.82 0.90 1.03 1.27 1.34 MAX 3.25 4.05 5.54 4.89 3.06 3.60 2.92 1.65 1.59 2.69 3.82 4.35 (WY) 1993 1993 1993 1993 1993 1992 1992 1992 1992 1991 1991 1991 MIN 0.35 0.33 0.30 0.38 0.44 0.47 0.52 0.29 0.43 0.23 0.26 0.30 (WY) 1989 1991 1991 1989 1989 1990 1990 1988 1987 1988 1988 1990 SUMMARY STATISTICS FOR 1993 CALENDAR YEAR FOR 1994 WATER YEAR WATER YEARS 1987 - 1994 ANNUAL TOTAL 440.00 492.87 ANNUAL MEAN 1.21 1.35 1.34 HIGHEST ANNUAL MEAN 2.65 1993 LOWEST ANNUAL MEAN 0.50 1989 HIGHEST DAILY MEAN 7.8 Feb 18 5.6 Sep 2 40 Oct 12 1990 LOWEST DAILY MEAN 0.46 May 25 0.64 Jun 1 0.07 Jun 11 1987 ANNUAL SEVEN-DAY MINIMUM 0.54 May 7 0.89 Aug 6 0.09 Jun 7 1987 MAXIMUM PEAK FLOW 44 Sep 2 45 Oct 12 1990 MAXIMUM PEAK STAGE 3.82 Sep 2 5.90 Oct 12 1990 10 PERCENT EXCEEDS 1.8 1.8 2.8 50 PERCENT EXCEEDS 1.1 1.2 0.82 90 PERCENT EXCEEDS 0.56 0.96 0.29 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 1.2 2.6 1.5 1.2 1.2 4.3 1.2 0.63 0.64 0.94 0.81 0.56 2 1.8 1.3 1.4 1.2 1.3 2.1 1.2 0.60 0.66 1.1 0.93 0.66 3 3.4 1.1 2.0 1.2 1.3 1.7 1.1 0.59 0.67 0.87 1.3 0.63 4 1.9 1.1 3.5 1.1 1.6 1.8 1.1 0.58 0.65 0.83 0.93 0.55 5 1.7 1.2 1.7 1.1 1.3 1.7 1.1 0.56 2.6 0.78 0.85 0.56 6 1.4 1.2 1.5 1.3 1.3 1.8 1.2 0.53 3.7 0.84 0.82 0.56 7 1.3 1.2 1.3 6.2 1.3 1.8 1.2 0.51 1.1 0.95 0.90 0.55 8 1.2 1.2 1.3 1.3 1.4 2.6 1.1 0.50 0.88 0.85 0.95 0.55 9 1.2 1.2 1.2 1.1 1.3 2.0 1.1 0.54 2.0 0.85 0.88 0.54 10 1.5 1.2 1.1 1.1 1.6 1.7 1.0 0.57 0.78 0.89 0.85 0.52 11 1.4 1.4 1.7 1.1 2.6 1.7 0.99 0.57 0.86 0.93 0.83 0.53 12 3.8 1.3 1.3 1.1 1.9 1.7 0.97 0.54 0.87 1.1 0.81 0.53 13 8.7 1.2 1.3 1.1 1.5 1.7 1.0 0.52 0.86 0.90 0.81 0.54 14 6.5 1.2 1.2 2.3 1.5 1.7 0.91 0.66 0.78 0.86 0.81 0.59 15 3.5 1.2 1.2 2.8 1.6 1.7 0.85 0.66 0.75 0.91 0.90 2.1 16 2.0 1.3 1.2 1.4 1.9 1.7 0.85 0.57 0.79 1.0 1.1 1.4 17 1.5 1.3 1.1 1.3 2.3 1.6 0.82 0.53 0.78 1.3 0.93 0.65 18 1.2 1.3 1.2 1.2 7.8 1.6 0.80 0.52 0.82 1.1 0.93 0.58 19 1.0 1.3 1.1 1.3 2.3 1.6 1.1 0.98 0.81 1.2 0.98 0.54 20 1.0 1.3 1.1 1.3 1.9 1.5 0.83 0.74 0.95 1.1 0.98 0.55 21 1.0 1.5 1.1 1.2 1.7 1.5 0.78 0.56 1.0 1.0 0.98 0.54 22 1.9 1.3 7.4 1.2 1.6 1.4 0.75 0.54 0.90 1.0 0.99 0.55 23 2.5 1.2 4.2 1.9 1.6 1.4 0.77 0.50 0.87 1.0 1.0 0.55 24 2.2 1.2 2.0 1.5 1.6 1.4 0.74 0.48 0.88 0.90 1.1 1.7 25 1.2 1.3 1.5 1.3 1.5 1.4 0.71 0.46 0.94 0.80 1.9 0.78 26 1.2 1.4 1.4 1.2 1.6 1.4 0.70 1.1 0.84 0.80 6.0 0.89 27 1.1 2.0 1.3 1.2 1.6 1.3 0.69 0.46 0.82 0.96 0.97 0.64 28 1.1 1.5 1.2 1.8 1.8 1.3 0.71 0.46 0.82 0.90 0.73 0.56 29 1.3 1.4 1.2 1.8 --- 1.2 0.66 0.54 0.82 0.84 0.66 0.53 30 1.1 1.5 1.2 1.4 --- 1.2 0.65 0.59 0.85 0.81 0.58 0.52 31 1.3 --- 1.2 1.3 --- 1.2 --- 0.52 --- 0.80 0.57 --- TOTAL 63.1 40.4 52.6 47.5 51.9 52.7 27.58 18.11 30.69 29.11 33.78 20.95 MEAN 2.04 1.35 1.70 1.53 1.85 1.70 0.92 0.58 1.02 0.94 1.09 0.70 MAX 8.7 2.6 7.4 6.2 7.8 4.3 1.2 1.1 3.7 1.3 6.0 2.1 MIN 1.0 1.1 1.1 1.1 1.2 1.2 0.65 0.46 0.64 0.78 0.57 0.52 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1995, BY WATER YEAR (WY) MEAN 1.57 1.41 1.43 1.74 1.37 1.62 1.11 0.79 0.92 1.02 1.25 1.27 MAX 3.25 4.05 5.54 4.89 3.06 3.60 2.92 1.65 1.59 2.69 3.82 4.35 (WY) 1993 1993 1993 1993 1993 1992 1992 1992 1992 1991 1991 1991 MIN 0.35 0.33 0.30 0.38 0.44 0.47 0.52 0.29 0.43 0.23 0.26 0.30 (WY) 1989 1991 1991 1989 1989 1990 1990 1988 1987 1988 1988 1990 SUMMARY STATISTICS FOR 1994 CALENDAR YEAR FOR 1995 WATER YEAR WATER YEARS 1987 - 1995 ANNUAL TOTAL 583.50 468.42 ANNUAL MEAN 1.59 1.28 1.33 HIGHEST ANNUAL MEAN 2.65 1993 LOWEST ANNUAL MEAN 0.50 1989 HIGHEST DAILY MEAN 8.7 Oct 13 8.7 Oct 13 40 Oct 12 1990 LOWEST DAILY MEAN 1.0 Oct 19 0.46 May 25 0.07 Jun 11 1987 ANNUAL SEVEN-DAY MINIMUM 1.1 Dec 15 0.54 May 7 0.09 Jun 7 1987 MAXIMUM PEAK FLOW 0.00 Jan 7 45 Oct 12 1990 MAXIMUM PEAK STAGE 5.18 Jan 7 5.90 Oct 12 1990 10 PERCENT EXCEEDS 2.0 1.9 2.6 50 PERCENT EXCEEDS 1.4 1.1 0.88 90 PERCENT EXCEEDS 1.2 0.56 0.30 1 U.S. DEPARTMENT OF THE INTERIOR - U.S. GEOLOGICAL SURVEY - WATER RESOURCES STATION NUMBER 021973455 INDIAN GRAVE BRANCH AT SAVANNAH RIVER SITE, SC SOURCE AGENCY USGS STATE 45 COUNTY 003 LATITUDE 331245 LONGITUDE 0814031 NAD27 DRAINAGE AREA 2.06* CONTRIBUTING DRAINAGE AREA DATUM 225. NGVD29 Date Processed: 2004-08-20 15:18 By mishealy APPROVED DD #15, ,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 0.52 0.59 0.58 2.1 1.6 1.9 1.8 1.4 1.3 1.2 3.1 1.3 2 0.48 0.60 0.58 1.7 1.7 1.8 1.6 1.4 1.3 1.2 1.6 1.3 3 0.45 0.63 0.58 1.6 1.8 1.8 1.5 1.4 1.2 1.1 2.7 1.3 4 0.48 0.62 0.58 1.5 1.6 1.8 1.5 1.4 1.2 1.1 1.6 1.8 5 0.50 0.60 0.58 1.5 1.5 1.9 1.5 1.3 1.3 2.1 1.4 1.8 6 0.52 0.59 0.60 1.5 1.5 2.4 1.6 1.3 1.2 1.5 1.4 1.4 7 0.52 1.2 1.7 1.7 1.5 3.4 1.6 1.4 1.2 1.3 1.4 1.4 8 0.51 0.83 0.68 1.6 1.5 2.3 1.5 1.4 1.4 1.2 1.3 1.3 9 0.51 0.64 0.84 1.5 1.5 2.1 1.5 1.3 1.4 1.3 1.3 1.3 10 0.53 0.62 0.67 1.5 1.5 2.0 1.4 1.3 1.3 1.2 1.5 1.9 11 0.53 0.83 0.60 1.5 1.5 2.0 1.4 1.3 1.3 1.2 1.5 1.8 12 0.54 0.76 0.59 1.6 1.5 2.0 1.4 1.3 1.2 1.2 2.2 1.4 13 0.54 0.64 0.58 1.5 2.1 2.0 1.4 1.3 1.4 1.2 1.7 1.4 14 0.77 0.61 0.58 1.5 2.2 2.0 1.4 1.3 4.6 1.2 2.1 1.3 15 0.73 0.59 0.58 1.5 1.8 2.2 1.4 1.3 1.6 1.3 1.5 1.4 16 0.57 0.60 0.56 1.5 1.8 2.4 1.4 1.3 1.1 1.4 1.4 1.4 17 0.59 0.58 0.54 1.5 1.8 3.4 1.4 1.3 1.2 1.3 1.4 1.4 18 0.56 0.65 0.54 1.5 1.8 2.5 1.4 1.3 1.2 1.3 1.7 1.3 19 0.57 0.58 3.1 1.6 1.8 2.2 1.4 1.3 1.3 1.3 1.6 1.3 20 0.56 0.64 1.7 1.5 2.0 2.1 1.5 1.2 1.3 1.3 1.4 1.3 21 0.55 0.51 1.6 1.5 1.9 2.1 1.4 1.2 1.3 1.3 1.4 1.3 22 0.57 0.58 1.5 1.5 1.8 2.0 1.4 1.2 1.3 1.2 1.4 1.4 23 0.54 0.63 1.5 1.5 1.8 2.0 1.4 1.2 1.2 1.2 1.4 1.3 24 0.52 0.60 1.5 1.6 1.8 2.0 1.4 1.3 1.2 1.2 1.6 1.3 25 0.54 0.57 1.5 1.5 1.7 2.0 1.4 1.7 1.3 1.3 3.1 1.3 26 0.53 0.60 1.5 1.5 1.8 2.0 1.4 1.3 1.3 1.3 1.4 1.3 27 0.71 0.59 1.5 2.5 1.8 2.3 1.4 1.3 1.3 1.3 1.3 1.3 28 1.0 0.59 1.5 1.6 2.6 3.6 1.3 1.5 1.2 1.3 1.3 1.4 29 0.59 0.59 1.5 1.6 2.0 1.9 1.4 1.4 1.2 1.3 1.3 1.5 30 0.56 0.58 1.5 1.5 --- 1.6 1.8 1.3 1.2 1.2 1.3 1.6 31 0.58 --- 1.6 1.6 --- 1.6 --- 1.3 --- 1.4 1.3 --- TOTAL 17.67 19.24 33.46 49.3 51.2 67.3 43.9 41.2 41.5 39.9 50.6 42.5 MEAN 0.57 0.64 1.08 1.59 1.77 2.17 1.46 1.33 1.38 1.29 1.63 1.42 MAX 1.0 1.2 3.1 2.5 2.6 3.6 1.8 1.7 4.6 2.1 3.1 1.9 MIN 0.45 0.51 0.54 1.5 1.5 1.6 1.3 1.2 1.1 1.1 1.3 1.3 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1987 - 1996, BY WATER YEAR (WY) MEAN 1.46 1.34 1.40 1.72 1.41 1.68 1.14 0.85 0.96 1.05 1.29 1.28 MAX 3.25 4.05 5.54 4.89 3.06 3.60 2.92 1.65 1.59 2.69 3.82 4.35 (WY) 1993 1993 1993 1993 1993 1992 1992 1992 1992 1991 1991 1991 MIN 0.35 0.33 0.30 0.38 0.44 0.47 0.52 0.29 0.43 0.23 0.26 0.30 (WY) 1989 1991 1991 1989 1989 1990 1990 1988 1987 1988 1988 1990 SUMMARY STATISTICS FOR 1995 CALENDAR YEAR FOR 1996 WATER YEAR WATER YEARS 1987 - 1996 ANNUAL TOTAL 497.77 ANNUAL MEAN 1.36 1.34 HIGHEST ANNUAL MEAN 2.65 1993 LOWEST ANNUAL MEAN 0.50 1989 HIGHEST DAILY MEAN 4.6 Jun 14 40 Oct 12 1990 LOWEST DAILY MEAN 0.45 Oct 3 0.07 Jun 11 1987 ANNUAL SEVEN-DAY MINIMUM 0.49 Oct 2 0.09 Jun 7 1987 MAXIMUM PEAK FLOW 52 Jun 14 0.00 Oct 12 1990 MAXIMUM PEAK STAGE 3.99 Jun 14 5.90 Oct 12 1990 10 PERCENT EXCEEDS 2.0 2.5 50 PERCENT EXCEEDS 1.4 0.94 90 PERCENT EXCEEDS 0.58 0.32