CONNECTICUT RIVER BASIN 01192704 MATTABESSET RIVER AT RT 372 AT EAST BERLIN, CT LOCATION.--Lat 41o36'29", long 72o42'56", Hartford County, Hydrologic Unit 01080205, on right bank just upstream from bridge on Route 372, and on the Hartford-Middlesex County line. DRAINAGE AREA.--48.1 mi2. WATER-DISCHARGE RECORDS PERIOD OF RECORD.--January 1995 to current year. GAGE.--Water-stage recorder. Datum of gage is 9.89 ft above sea level. REMARKS.--Records good except for periods of estimated record, which are poor. 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 35 73 46 e21 127 71 45 297 30 19 42 e14 2 44 161 52 e21 e102 e68 211 328 27 18 27 e14 3 49 145 39 e20 e90 e65 92 329 49 127 23 e14 4 57 88 40 e20 e82 e63 64 231 116 54 21 e13 5 96 65 34 e20 e76 e62 60 135 50 26 20 e13 6 504 54 73 e20 e70 179 57 87 36 20 19 e13 7 160 80 51 e20 e65 167 62 77 30 18 18 34 8 99 192 39 e20 e63 112 105 65 28 17 17 22 9 e80 92 35 e20 111 e85 77 61 26 57 28 17 10 e70 65 e33 e19 113 e76 205 79 70 125 64 21 11 e55 61 e33 e19 111 e72 201 82 47 29 20 17 12 e40 554 e32 e19 e71 81 147 258 33 21 17 16 13 e30 222 e31 e19 e60 100 137 114 29 294 49 17 14 24 193 e30 e19 e55 123 114 265 27 325 33 19 15 339 470 e29 e19 e51 139 92 398 25 71 21 16 16 92 223 e28 e19 e48 137 1350 245 24 54 19 15 17 44 136 e28 e19 e46 99 1410 135 22 36 19 75 18 36 106 e27 103 e45 86 709 90 28 29 17 471 19 30 124 e26 674 e43 78 675 78 27 28 17 134 20 29 98 e26 1210 e42 134 417 66 49 29 16 46 21 313 82 e25 350 246 98 231 100 34 21 16 31 22 415 71 e24 192 257 80 135 100 26 19 15 41 23 112 59 e24 146 186 70 119 61 23 31 24 85 24 70 52 e24 420 198 64 155 47 21 35 56 39 25 51 46 e23 640 163 59 281 40 24 25 23 37 26 38 44 e23 229 117 57 459 36 20 106 17 28 27 32 43 e22 593 99 50 422 35 18 51 16 25 28 499 41 e22 1170 101 47 263 34 18 27 17 24 29 314 42 e22 537 88 47 233 33 17 23 16 88 30 113 42 e21 398 --- 46 258 36 18 22 15 40 31 74 --- e21 206 --- 46 --- 36 --- 31 15 --- TOTAL 3944 3724 983 7202 2926 2661 8786 3978 992 1788 737 1439 MEAN 127 124 31.7 232 101 85.8 293 128 33.1 57.7 23.8 48.0 MAX 504 554 73 1210 257 179 1410 398 116 325 64 471 MIN 24 41 21 19 42 46 45 33 17 17 15 13 CFSM 2.65 2.58 .66 4.83 2.10 1.78 6.09 2.67 .69 1.20 .49 1.00 IN. 3.05 2.88 .76 5.57 2.26 2.06 6.79 3.08 .77 1.38 .57 1.11 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1995 - 1996, BY WATER YEAR (WY) MEAN 127 124 31.7 232 86.3 96.8 175 87.0 30.2 40.5 24.4 34.4 MAX 127 124 31.7 232 101 108 293 128 33.1 57.7 25.0 48.0 (WY) 1996 1996 1996 1996 1996 1995 1996 1996 1996 1996 1995 1996 MIN 127 124 31.7 232 71.1 85.8 56.3 45.8 27.4 23.3 23.8 20.8 (WY) 1996 1996 1996 1996 1995 1996 1995 1995 1995 1995 1996 1995 SUMMARY STATISTICS FOR 1995 CALENDAR YEAR* FOR 1996 WATER YEAR WATER YEARS 1995 - 1996 ANNUAL TOTAL 39160 ANNUAL MEAN 107 107 HIGHEST ANNUAL MEAN 107 1996 LOWEST ANNUAL MEAN 107 1996 HIGHEST DAILY MEAN 1410 Apr 17 1410 Apr 17 1996 LOWEST DAILY MEAN a13 Sep 4 6.0 Sep 11 1995 ANNUAL SEVEN-DAY MINIMUM 14 Aug 31 6.1 Sep 6 1995 INSTANTANEOUS PEAK FLOW 2380 Apr 16 2380 Apr 16 1996 INSTANTANEOUS PEAK STAGE 9.52 Apr 16 9.52 Apr 16 1996 INSTANTANEOUS LOW FLOW 13 Sep 4 6.0 Sep 11 1995 ANNUAL RUNOFF (CFSM) 2.22 2.22 ANNUAL RUNOFF (INCHES) 30.29 30.22 10 PERCENT EXCEEDS 257 182 50 PERCENT EXCEEDS 49 44 90 PERCENT EXCEEDS 19 15 * Calendar year statistics not available. Station did not operate as a continuous record site until Jan. 15, 1995. a Also occurred on Sep. 5 and 6. e Estimated.