CONNECTICUT RIVER BASIN 01184490 BROAD BROOK AT BROAD BROOK, CT LOCATION.--Lat 41o54'50", long 72o33'00", Hartford County, Hydrologic Unit 01080205, on left bank just upstream from bridge on State Highway 191 (Mill Street) at Broad Brook, 0.5 mi upstream from mouth. DRAINAGE AREA.--15.5 mi2. PERIOD OF RECORD.--August 1961 to September 1976, May 1982 to current year. REVISED RECORDS.--WSP 2101: 1962 (P). WDR CT-83-1: Drainage area. GAGE.--Water-stage recorder. Datum of gage is 46.210 ft above sea level. REMARKS.--Records good except for periods of estimated record, which are fair. Flow regulated by reservoir and mill upstream. 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 7.8 22 23 e13 e45 34 29 71 25 17 21 12 2 7.7 34 26 e13 e41 35 60 51 24 16 17 12 3 8.0 32 23 e13 e38 35 40 47 30 23 16 11 4 8.1 27 24 e13 e37 32 34 50 42 19 15 11 5 14 23 22 e13 e36 33 32 44 29 17 15 11 6 54 22 27 e12 e35 48 31 51 25 16 14 11 7 19 25 24 e12 e34 e38 31 48 23 15 14 14 8 13 44 22 e12 37 e35 37 42 22 15 14 13 9 11 27 e20 e12 49 e33 34 39 22 20 14 12 10 10 23 e19 e12 47 e32 45 41 29 19 14 12 11 9.9 25 e19 e12 49 34 53 45 26 15 13 12 12 9.5 76 e18 e12 e37 35 56 91 23 15 13 12 13 9.4 41 e18 e12 e32 39 44 54 22 50 16 16 14 12 36 e17 e12 e29 47 50 44 21 45 15 9.6 15 45 60 e17 e12 e28 59 42 40 20 27 14 10 16 18 38 e17 e11 e27 63 326 42 19 22 13 11 17 13 32 e16 e11 e26 49 246 49 19 18 13 14 18 12 29 e16 20 e25 44 90 41 18 17 13 69 19 12 32 e16 161 e25 41 70 37 19 19 12 27 20 14 30 e15 252 33 51 61 33 22 20 12 17 21 45 29 e15 63 81 44 56 37 20 16 12 15 22 80 27 e15 53 73 40 52 37 19 15 12 17 23 26 26 e15 47 56 37 50 30 18 18 14 28 24 20 25 e15 107 59 35 47 28 17 18 25 18 25 18 24 e14 167 51 33 43 28 28 16 17 17 26 16 24 e14 66 43 33 42 27 19 28 14 18 27 16 23 e14 133 40 31 43 27 17 22 13 17 28 90 23 e14 240 42 30 38 26 17 17 13 14 29 50 23 e14 80 38 31 53 26 17 16 13 24 30 27 22 e13 e59 --- 30 82 29 17 15 12 17 31 24 --- e13 e50 --- 29 --- 28 --- 17 12 --- TOTAL 719.4 924 555 1705 1193 1190 1917 1283 669 623 445 501.6 MEAN 23.2 30.8 17.9 55.0 41.1 38.4 63.9 41.4 22.3 20.1 14.4 16.7 MAX 90 76 27 252 81 63 326 91 42 50 25 69 MIN 7.7 22 13 11 25 29 29 26 17 15 12 9.6 CFSM 1.50 1.99 1.16 3.55 2.65 2.48 4.12 2.67 1.44 1.30 .93 1.08 IN. 1.73 2.22 1.33 4.09 2.86 2.86 4.60 3.08 1.61 1.50 1.07 1.20 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1961 - 1996, BY WATER YEAR (WY) MEAN 16.0 20.2 24.2 27.2 29.9 40.7 37.1 29.3 23.8 16.2 15.0 14.9 MAX 44.3 45.8 50.7 68.5 66.4 86.2 87.5 64.1 65.4 31.3 33.1 53.8 (WY) 1990 1976 1973 1976 1970 1972 1983 1984 1982 1967 1989 1975 MIN 7.44 8.37 8.71 7.98 13.8 18.0 12.9 12.7 9.78 5.24 5.00 6.77 (WY) 1966 1966 1966 1966 1969 1985 1966 1965 1965 1965 1965 1963 SUMMARY STATISTICS FOR 1995 CALENDAR YEAR FOR 1996 WATER YEAR WATER YEARS 1961 - 1996 ANNUAL TOTAL 7863.5 11725.0 ANNUAL MEAN 21.5 32.0 24.4 HIGHEST ANNUAL MEAN 34.9 1976 LOWEST ANNUAL MEAN 11.6 1966 HIGHEST DAILY MEAN 121 Mar 9 326 Apr 16 487 Mar 3 1972 LOWEST DAILY MEAN 5.6 Jul 17 7.7 Oct 2 1.7 Jul 17 1965 ANNUAL SEVEN-DAY MINIMUM 6.9 Sep 7 11 Oct 8 2.9 Jul 12 1965 INSTANTANEOUS PEAK FLOW 726 Apr 16 1140 Sep 27 1975 INSTANTANEOUS PEAK STAGE 5.35 Apr 16 6.56 Sep 27 1975 INSTANTANEOUS LOW FLOW 5.3 Sep 14 1.3 Jan 1 1965 ANNUAL RUNOFF (CFSM) 1.39 2.07 1.57 ANNUAL RUNOFF (INCHES) 18.87 28.14 21.39 10 PERCENT EXCEEDS 37 53 42 50 PERCENT EXCEEDS 20 24 18 90 PERCENT EXCEEDS 8.4 12 9.6 e Estimated.