CONNECTICUT RIVER BASIN
01139000 WELLS RIVER AT WELLS RIVER, VT
LOCATION.--Lat 44°09'03", long 72°03'55", Orange County, Hydrologic Unit 01080103, on right bank, 0.8 mi west of
village of Wells River, and 1.5 mi upstream from mouth.
DRAINAGE AREA.--98.4 mi².
PERIOD OF RECORD.--Discharge records: August 1940 to current year.
Water-quality records: Water years 1957-58, 1995.
REVISED RECORDS.--WSP 1171: Drainage area. WSP 1201: 1942(P), 1944-45(M), 1946-47(P), 1948(M), 1950.
GAGE.--Water-stage recorder. Datum of gage is 505.53 ft above sea level (levels by Connecticut River Power Co.).
REMARKS.--Records good except those for estimated daily discharges, which are fair. Some diurnal fluctuation at low
flow prior to 1958 and since June 1984 caused by small powerplant upstream. Flow partly regulated by Groton and
Ricker Ponds.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 980 ft³/s and maximum (*):
Discharge Gage height Discharge Gage height
Date Time (ft³/s) (ft) Date Time (ft³/s) (ft)
Oct. 21 2030 1,930 5.78 Apr. 19 0230 1,160 4.68
Nov. 9 1900 1,380 5.01 July 15 1500 * 4,560 * 8.54
Dec. 2 1430 1,830 5.65 Aug. 22 0630 1,730 5.51
Apr. 7 2330 2,070 5.95
Minimum daily discharge, 15 ft³/s, July 15.
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 87 132 168 e133 e87 244 386 453 144 18 49 66
2 73 114 1250 e160 e85 264 304 619 170 15 45 58
3 75 108 769 e185 e83 330 278 436 106 41 90 80
4 72 102 444 e165 e82 e212 305 507 79 206 84 70
5 61 101 339 e162 e82 e190 392 359 63 82 58 50
6 54 98 280 250 e80 e170 864 337 56 45 55 39
7 52 96 243 e160 e78 e153 1450 686 48 30 46 48
8 50 110 e222 e150 e77 e143 1410 462 44 24 41 129
9 127 721 e212 e145 e76 e136 716 363 38 38 37 74
10 145 724 211 e150 e76 e130 474 409 33 60 35 61
11 166 414 196 e130 e74 e125 394 420 28 32 31 54
12 108 300 184 e117 e73 e119 369 341 30 21 31 106
13 93 235 181 e115 e72 e115 357 307 33 16 167 91
14 84 192 180 e114 e71 e109 407 266 54 16 358 72
15 77 155 187 e112 e71 e106 391 233 33 2220 157 63
16 66 132 193 e110 e70 e102 456 258 23 1290 115 56
17 63 137 208 e120 e72 e101 616 378 49 561 96 51
18 59 140 346 e100 e77 e100 848 284 104 573 76 50
19 56 145 354 e98 e96 e98 1090 252 608 413 51 49
20 60 151 297 e96 e210 e98 941 333 256 268 45 49
21 1030 160 221 e94 e152 e97 862 252 154 185 59 57
22 903 143 207 e90 e335 e98 780 240 191 146 1020 51
23 442 128 201 e100 e440 e99 715 221 209 117 602 49
24 299 115 282 e95 e240 e99 665 179 111 98 320 49
25 219 109 492 e90 e197 e100 570 163 69 81 184 49
26 167 121 e265 e100 e197 131 532 151 58 74 136 47
27 138 120 e237 e98 232 149 486 128 44 69 122 47
28 131 104 e210 e93 372 183 689 108 33 65 355 46
29 131 120 e217 e91 --- 289 694 95 26 78 159 73
30 119 108 e250 e89 --- 408 502 84 22 61 99 139
31 165 --- e136 e89 --- 416 --- 86 --- 51 77 ---
TOTAL 5372 5535 9182 3801 3857 5114 18943 9410 2916 6994 4800 1923
MEAN 173 185 296 123 138 165 631 304 97.2 226 155 64.1
MAX 1030 724 1250 250 440 416 1450 686 608 2220 1020 139
MIN 50 96 136 89 70 97 278 84 22 15 31 39
CFSM 1.76 1.88 3.01 1.25 1.40 1.68 6.42 3.08 .99 2.29 1.57 .65
IN. 2.03 2.09 3.47 1.44 1.46 1.93 7.16 3.56 1.10 2.64 1.81 .73
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1940 - 1997, BY WATER YEAR (WY)
MEAN 95.4 129 120 94.9 93.9 186 453 259 133 76.4 63.4 57.2
MAX 337 279 395 285 349 467 764 589 449 323 305 196
(WY) 1982 1990 1984 1996 1981 1953 1952 1972 1973 1973 1990 1981
MIN 16.3 37.6 36.3 23.2 22.1 49.5 137 82.2 38.9 25.2 18.7 17.9
(WY) 1964 1971 1948 1948 1980 1941 1995 1965 1995 1965 1980 1963
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1940 - 1997
ANNUAL TOTAL 91813 77847
ANNUAL MEAN 251 213 147
HIGHEST ANNUAL MEAN 239 1990
LOWEST ANNUAL MEAN 66.5 1965
HIGHEST DAILY MEAN 2060 Jan 20 2220 Jul 15 2960 Jul 1 1973
LOWEST DAILY MEAN 36 Sep 24 15 Jul 2 8.3 Sep 5 1953
ANNUAL SEVEN-DAY MINIMUM 48 Sep 19 28 Jun 27 10 Sep 1 1995
INSTANTANEOUS PEAK FLOW a 4560 Jul 15 a 5970 Jun 30 1973
INSTANTANEOUS PEAK STAGE 8.54 Jul 15 9.82 Jun 30 1973
ANNUAL RUNOFF (CFSM) 2.55 2.17 1.49
ANNUAL RUNOFF (INCHES) 34.71 29.43 20.24
10 PERCENT EXCEEDS 567 467 340
50 PERCENT EXCEEDS 166 122 81
90 PERCENT EXCEEDS 62 48 29
a From rating curve extended above 1,400 ft³/s on basis of peak flow over dam.
e Estimated.
Back to station selections
Back to District Home Page
To WRD National Home Page
To USGS National Home Page
Comments and suggestions can be sent to
NH-VT Webmaster