QUINNIPIAC RIVER BASIN 01196500 QUINNIPIAC RIVER AT WALLINGFORD, CT LOCATION.--Lat 41o26'58", long 72o50'29", New Haven County, Hydrologic Unit 01100004, on right bank on Wilbur Cross Highway, 0.8 mi downstream from bridge on Quinnipiac Street in Wallingford, and 2 mi upstream from Wharton Brook. DRAINAGE AREA.--115 mi2. WATER-DISCHARGE RECORDS PERIOD OF RECORD.--October 1930 to current year. REVISED RECORDS.--WDR CT-83-1: Drainage area. GAGE.--Water-stage recorder and timber control. Datum of gage is 19.24 ft above sea level. Prior to Jan. 27, 1965, at datum 1.00 ft higher. REMARKS.--Records good except for periods of estimated record, which are fair. Satellite gage-height telemeter at this station. Flow regulated by Wolcott Reservoir, Broad Brook Reservoir, and by mills upstream. Diversion from Wolcott Reservoir for municipal supply of New Britain and diversion into the basin from Merimere and Elmere Reservoirs for municipal supply of Meriden. 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 1 160 110 238 361 215 259 154 250 137 64 55 39 2 177 141 194 504 e210 259 147 237 111 62 55 37 3 155 124 178 421 e200 273 142 177 102 60 103 34 4 147 110 167 307 e195 253 149 155 103 58 82 33 5 134 104 379 255 e190 237 151 153 100 57 119 34 6 126 101 547 226 e186 233 137 168 91 57 376 34 7 122 98 353 642 e182 230 137 137 90 57 165 34 8 118 96 274 517 e178 258 144 126 101 62 92 35 9 116 94 228 340 174 950 181 121 108 58 72 35 10 122 128 231 277 173 684 289 121 85 54 65 36 11 116 133 579 248 176 404 209 158 82 58 61 34 12 108 116 462 237 178 335 169 168 186 128 59 33 13 103 108 294 257 160 307 341 144 166 99 61 37 14 104 104 246 308 156 285 284 128 132 65 55 42 15 103 102 229 330 155 270 202 151 108 58 52 38 16 101 102 214 388 303 258 173 148 93 52 50 35 17 100 97 206 368 269 252 159 132 84 50 49 146 18 99 103 252 302 226 281 153 144 79 154 46 153 19 97 151 238 271 211 259 268 142 76 105 42 75 20 101 127 202 524 218 229 304 148 73 68 41 53 21 118 140 186 818 231 227 217 125 68 59 41 48 22 112 448 177 557 222 237 203 113 66 55 42 61 23 113 333 180 425 204 219 177 104 65 53 41 137 24 153 191 885 369 342 204 161 101 64 134 39 76 25 138 154 913 325 351 192 154 113 107 72 38 56 26 111 141 513 297 248 182 147 118 100 60 33 76 27 103 130 363 e270 207 175 140 104 134 56 35 74 28 98 370 315 e245 241 172 142 96 89 56 37 59 29 96 500 287 e225 --- 166 142 107 71 135 37 50 30 95 335 243 e215 --- 163 136 352 67 101 36 45 31 96 --- 219 e210 --- 162 --- 226 --- 64 34 --- TOTAL 3642 4991 9992 11039 6001 8615 5512 4667 2938 2271 2113 1679 MEAN 117 166 322 356 214 278 184 151 97.9 73.3 68.2 56.0 MAX 177 500 913 818 351 950 341 352 186 154 376 153 MIN 95 94 167 210 155 162 136 96 64 50 33 33 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1931 - 1995, BY WATER YEAR (WY) MEAN 129 184 229 254 269 382 358 246 181 116 110 112 MAX 554 658 564 890 611 792 1169 756 920 357 411 563 (WY) 1956 1956 1984 1979 1970 1953 1983 1989 1982 1972 1955 1938 MIN 45.5 47.6 57.9 52.0 101 164 107 88.1 61.4 37.5 27.1 41.7 (WY) 1931 1966 1966 1966 1934 1985 1966 1941 1957 1966 1966 1986 SUMMARY STATISTICS FOR 1994 CALENDAR YEAR FOR 1995 WATER YEAR WATER YEARS 1931 - 1995 ANNUAL TOTAL 91102 63460 ANNUAL MEAN 250 174 214 HIGHEST ANNUAL MEAN 357 1984 LOWEST ANNUAL MEAN 84.6 1966 HIGHEST DAILY MEAN 1730 Jan 29 950 Mar 9 7210 Jun 6 1982 LOWEST DAILY MEAN 63 Jul 22 33 Aug 26 9.0 Nov 2 1930 ANNUAL SEVEN-DAY MINIMUM 70 Jul 16 34 Sep 3 16 Aug 28 1966 INSTANTANEOUS PEAK FLOW 1180 Mar 9 8200 Jun 6 1982 INSTANTANEOUS PEAK STAGE 6.97 Mar 9 14.02 Jun 6 1982 INSTANTANEOUS LOW FLOW 18 Aug 26 8.0 Nov 2 1930 10 PERCENT EXCEEDS 544 331 415 50 PERCENT EXCEEDS 165 142 149 90 PERCENT EXCEEDS 87 51 60 e Estimated.