ST. LAWRENCE RIVER BASIN
04287000 DOG RIVER AT NORTHFIELD FALLS, VT
LOCATION.--Lat 44°10'58", long 72°38'27", Washington County, Hydrologic Unit 02010003, on right bank, 1 mi downstream
from Northfield Falls, and 1.2 mi downstream from Cox Branch.
DRAINAGE AREA.--76.1 mi².
PERIOD OF RECORD.--Discharge records: October 1934 to current year. October 1934 monthly discharge only, published in
WSP 1307.
Water-quality records: Water year 1957.
REVISED RECORDS.--WSP 1237: 1935-37.
GAGE.--Water-stage recorder. Datum of gage is 603.00 ft above sea level (levels by U.S. Army Corps of Engineers).
REMARKS.--Records good except those for estimated daily discharges, which are fair. Infrequent diurnal fluctuation at
low flow by powerplant upstream; regulation much greater prior to 1955.
EXTREMES FOR CURRENT YEAR.--Peak discharges greater than base discharge of 1,600 ft³/s and maximum (*):
Discharge Gage height Discharge Gage height
Date Time (ft³/s) (ft) Date Time (ft³/s) (ft)
Oct. 21 1200 1750 4.80 Dec. 2 0845 * 2930 * 6.11
Nov. 9 1200 2180 5.33
Minimum discharge, 14 ft³/s, July 6, September 6, 7.
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 27 90 135 e168 70 253 395 371 121 24 17 34
2 24 79 1620 e161 65 317 311 468 114 23 18 32
3 23 77 517 e148 62 342 284 385 89 56 28 46
4 22 74 333 137 e63 e210 316 483 81 77 23 40
5 20 72 264 137 e62 e178 397 327 76 44 21 31
6 20 69 226 e148 62 e150 743 385 70 29 20 27
7 20 68 200 e119 58 e130 1040 500 64 27 18 26
8 19 70 201 e100 e58 e125 693 330 59 26 16 27
9 38 860 166 e98 e57 e118 423 282 54 42 16 25
10 41 433 154 e96 e56 e112 334 289 48 46 15 23
11 47 271 146 e97 54 e108 292 259 43 29 16 22
12 32 208 140 96 52 e102 268 224 41 26 19 35
13 33 174 137 91 50 e99 287 206 48 24 92 26
14 28 147 140 e89 e50 e95 301 178 62 26 100 25
15 24 125 140 86 e50 e93 278 161 43 150 40 24
16 24 116 142 87 e49 e91 309 162 37 86 31 22
17 25 113 172 e85 e48 e88 400 172 45 56 34 20
18 23 112 330 e84 53 e84 444 152 55 124 27 21
19 22 114 304 e82 95 e82 527 157 115 70 22 20
20 25 111 235 e81 136 e82 506 185 74 52 20 19
21 914 105 184 e79 115 e80 523 154 55 40 56 19
22 529 97 175 76 701 e78 504 158 60 35 139 18
23 315 91 160 108 502 e75 466 144 59 32 100 18
24 211 84 278 e86 e250 e75 421 129 46 27 77 19
25 151 82 500 e83 e178 e74 376 127 41 27 54 18
26 124 87 274 e80 e187 108 357 119 37 25 39 18
27 105 81 230 e79 294 115 332 107 33 24 39 17
28 102 72 200 e75 361 156 524 96 30 24 99 17
29 92 74 207 e72 --- 279 448 90 27 22 59 39
30 90 74 232 e71 --- 435 351 86 26 20 41 47
31 104 --- 174 e71 --- 466 --- 88 --- 18 37 ---
TOTAL 3274 4230 8316 3070 3838 4800 12850 6974 1753 1331 1333 775
MEAN 106 141 268 99.0 137 155 428 225 58.4 42.9 43.0 25.8
MAX 914 860 1620 168 701 466 1040 500 121 150 139 47
MIN 19 68 135 71 48 74 268 86 26 18 15 17
CFSM 1.39 1.85 3.53 1.30 1.80 2.03 5.63 2.96 .77 .56 .57 .34
IN. 1.60 2.07 4.07 1.50 1.88 2.35 6.28 3.41 .86 .65 .65 .38
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1935 - 1997, BY WATER YEAR (WY)
MEAN 72.7 106 113 89.5 88.3 207 421 196 80.0 41.1 37.0 37.8
MAX 301 245 349 264 439 831 785 463 357 176 219 259
(WY) 1978 1996 1984 1996 1981 1936 1969 1972 1947 1973 1976 1938
MIN 8.19 19.0 28.7 21.5 18.6 37.0 115 57.5 19.7 8.96 8.77 9.19
(WY) 1964 1954 1948 1940 1940 1940 1995 1941 1965 1965 1965 1963
SUMMARY STATISTICS FOR 1996 CALENDAR YEAR FOR 1997 WATER YEAR WATER YEARS 1935 - 1997
ANNUAL TOTAL 66922 52544
ANNUAL MEAN 183 144 124
HIGHEST ANNUAL MEAN 205 1976
LOWEST ANNUAL MEAN 51.6 1965
HIGHEST DAILY MEAN 1620 Dec 2 1620 Dec 2 4390 Mar 18 1936
LOWEST DAILY MEAN 17 Sep 22 15 Aug 10 4.3 Sep 7 1942
ANNUAL SEVEN-DAY MINIMUM 19 Sep 18 17 Aug 6 6.1 Jul 31 1965
INSTANTANEOUS PEAK FLOW 2930 Dec 2 a 10600 Jun 30 1973
INSTANTANEOUS PEAK STAGE 6.11 Dec 2 11.57 Jun 30 1973
INSTANTANEOUS LOW FLOW c 14 Jul 6 b 4.3 Aug 31 1942
ANNUAL RUNOFF (CFSM) 2.40 1.89 1.63
ANNUAL RUNOFF (INCHES) 32.71 25.69 22.14
10 PERCENT EXCEEDS 395 353 274
50 PERCENT EXCEEDS 112 86 62
90 PERCENT EXCEEDS 25 23 17
a From rating curve extended above 1,500 ft³/s on basis of flow over dam at gage height 8.49 ft.
b Also occurred on September 7, 1942.
c Also occurred on September 6 and 7.
e Estimated.
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