CONNECTICUT RIVER BASIN 01189000 PEQUABUCK RIVER AT FORESTVILLE, CT LOCATION.--Lat 41o40'23", long 72o54'04", Hartford County, Hydrologic Unit 01080207, on left bank 500 ft upstream from bridge on Central Street, 0.2 mi downstream from Copper Mine Brook, and 6.5 mi upstream from mouth. DRAINAGE AREA.--45.8 mi2. PERIOD OF RECORD.--Discharge: July 1941 to current year. Water-quality records: Water years 1956, 1960, 1971-72. REVISED RECORDS.--WSP 971: 1941-42. WSP 1111: 1947. WSP 1901: 1959-60. WDR-CT-83-1: Drainage area. GAGE.--Water-stage recorder. Datum of gage is 197.72 ft above sea level. REMARKS.--Records good except for periods of estimated record, which are fair. Flow regulated by Whigville Reservoir and mills upstream. Diversion for municipal supply of city of New Britain from Whigville Reservoir, Whites Bridge wells, and Coppermine Brook. EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of September 1938 reached a stage of about 7.3 ft, from floodmarks, discharge, 3,800 ft3/s, on basis of slope-area measurement of peak flow and computation of peak flow over dam. 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 19 70 80 e43 179 119 83 243 53 36 44 23 2 19 132 80 e42 168 e113 210 158 50 35 37 e22 3 20 94 73 e42 158 e110 109 153 93 104 34 e21 4 22 77 75 e41 141 e104 91 148 96 74 33 e20 5 95 67 71 e40 124 e100 86 130 67 45 32 e20 6 239 63 96 e39 118 e96 82 139 59 38 31 21 7 52 91 78 e38 111 e93 97 118 50 35 29 60 8 36 119 68 e38 e108 e91 118 105 48 35 29 39 9 29 76 67 e37 e102 e88 107 100 47 99 34 28 10 26 68 69 e36 e99 e95 156 117 67 54 29 26 11 25 82 63 e36 e95 e100 170 149 53 37 27 25 12 24 781 60 e36 e92 110 169 235 48 34 28 24 13 24 264 58 e36 e90 121 174 138 46 546 57 35 14 115 298 57 e35 e86 139 183 116 44 240 34 37 15 203 567 65 e35 e84 154 146 103 42 110 30 26 16 58 258 62 e35 e83 155 901 130 40 84 28 25 17 42 183 59 e43 e81 122 480 142 40 59 46 103 18 36 155 57 62 e77 114 257 135 47 49 29 374 19 33 187 57 864 76 110 200 117 52 50 27 81 20 57 148 60 680 82 236 164 101 51 46 26 48 21 347 129 59 274 243 157 148 108 46 40 26 41 22 190 118 57 202 277 134 135 95 42 38 25 73 23 90 100 56 160 220 116 128 78 40 41 25 73 24 70 93 54 441 249 107 118 74 39 39 45 45 25 56 87 52 450 200 102 103 69 49 38 29 43 26 48 85 e51 235 168 97 105 63 37 77 26 37 27 48 82 e48 1070 152 89 103 62 36 44 44 35 28 329 77 e47 771 157 85 91 63 41 37 31 53 29 172 79 e46 355 138 84 188 59 36 35 28 129 30 116 75 e45 272 --- 82 235 58 36 35 25 50 31 81 --- e44 216 --- 78 --- 58 --- 47 24 --- TOTAL 2721 4705 1914 6704 3958 3501 5337 3564 1495 2281 992 1637 MEAN 87.8 157 61.7 216 136 113 178 115 49.8 73.6 32.0 54.6 MAX 347 781 96 1070 277 236 901 243 96 546 57 374 MIN 19 63 44 35 76 78 82 58 36 34 24 20 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1942 - 1996, BY WATER YEAR (WY) MEAN 49.2 68.9 81.3 87.1 93.3 147 146 100 68.6 41.8 43.0 38.5 MAX 372 303 212 232 214 391 463 396 368 99.4 356 167 (WY) 1956 1956 1974 1979 1951 1983 1983 1989 1982 1972 1955 1975 MIN 11.6 17.4 18.5 11.7 32.1 39.9 26.5 27.0 22.1 18.7 14.7 14.8 (WY) 1942 1950 1981 1981 1980 1985 1985 1965 1957 1957 1944 1986 SUMMARY STATISTICS FOR 1995 CALENDAR YEAR FOR 1996 WATER YEAR WATER YEARS 1942 - 1996 ANNUAL TOTAL 27127 38809 ANNUAL MEAN 74.3 106 80.2 HIGHEST ANNUAL MEAN 136 1984 LOWEST ANNUAL MEAN 29.9 1965 HIGHEST DAILY MEAN 781 Nov 12 1070 Jan 27 6500 Aug 19 1955 LOWEST DAILY MEAN 18 Sep 16 19 Oct 1 7.0 Oct 26 1941 ANNUAL SEVEN-DAY MINIMUM 19 Sep 2 22 Aug 31 9.2 Oct 20 1941 INSTANTANEOUS PEAK FLOW 2490 Jan 27 a11700 Aug 19 1955 INSTANTANEOUS PEAK STAGE 6.05 Jan 27 b13.22 Aug 19 1955 INSTANTANEOUS LOW FLOW d14 Oct 1 c6.5 Sep 21 1941 10 PERCENT EXCEEDS 129 201 160 50 PERCENT EXCEEDS 59 73 49 90 PERCENT EXCEEDS 24 29 20 a From rating curve extended above 2,100 ft3/s on basis of slope-area measurement at gage height of 7.3 and 13.22 ft. b From high water mark in gage house. c Also occurred on Sep. 22, 1941. d Also occurred on Oct. 3. e Estimated.