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.

The URL for this page is: http://nh.water.usgs.gov/Publications/annual97/04287000.htm

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