05079000 RED LAKE RIVER AT CROOKSTON, MN


List Of Figures:

Annual mean discharge
Annual flow duration


LOCATION.--Lat 4746'32'', long 9636'33", in SW1/4SW1/4 sec.30, T.150 N., R.46 W., Polk County, Hydrologic Unit 09020303, on right bank 100 ft upstream from Sargent Street bridge in Crookston, 0.3 mi downstream from Interstate Power Co.'s dam, 0.6 mi downstream from bridge on U.S. Highway 75, and 53 mi upstream from mouth.
DRAINAGE AREA.--5,280 mi2, approximately.
PERIOD OF RECORD.--May 1901 to current year. Monthly discharge only for some periods, published in WSP 1308. Figures of daily discharge for Apr. 3-30, 1904, published in WSP 130, have been found unreliable and should not be used.
GAGE.--Water-stage recorder. Datum of gage is 832.72 ft above sea level. May 18, 1901, to June 30, 1909, nonrecording gage at bridge 300 ft upstream at same datum. July 1, 1909, to Sept. 25, 1911, nonrecording gage, Sept. 26, 1911, to Sept. 30, 1919, water-stage recorder, Oct. 1, 1919, to Sept. 30, 1930, nonrecording gage, at present site and datum.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 28,400 ft3/s, Apr. 12, 1969, gage height, 27.33 ft; minimum daily discharge, 0.0 ft3/s, July 13, 1960, caused by regulation of powerplant upstream.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of April 1897 reached a stage of 25.20 on April 11, discharge 18,900 ft3/s.

Annual mean discharge

Annual mean discharge for 05079000 Red Lake River at Crookston, Minnesota

----------------------------------------------------------------------------------------------------------
                              Statistics of monthly and annual mean discharges
__________________________________________________________________________________________________________

                  Maximum                  Minimum                              Mean
           ______________________   ______________________   _____________________________________________

                       Water year               Water year              Standard    Coeffi-    Percentage
 Month     Discharge       of       Discharge       of       Discharge  deviation   cient of   of annual
            (ft3/s)    occurrence    (ft3/s)    occurrence    (ft3/s)    (ft3/s)    variation   discharge
__________________________________________________________________________________________________________

October      2,840     1972           8.02      1937           805         689        0.86       6.00
November     3,170     1972           10.1      1937           660         548        0.83       4.92
December     1,900     1904           5.34      1937           547         425        0.78       4.08
January      1,500     1906           15.6      1934           494         385        0.78       3.68
February     1,460     1951           17.8      1937           470         357        0.76       3.50
March        3,630     1910           24.9      1936           938         854        0.91       6.99
April        10,300    1966           232       1981           2,920       2,270      0.78       21.8
May          15,300    1950           154       1934           2,030       2,050      1.01       15.1
June         7,200     1962           80.4      1934           1,640       1,300      0.79       12.2
July         6,850     1975           26.2      1936           1,290       1,240      0.96       9.58
August       3,870     1985           12.3      1934           815         743        0.91       6.07
September    3,010     1905           8.87      1934           810         649        0.80       6.03
Annual       3,130     1950           132       1935           1,110       695        0.62       100
__________________________________________________________________________________________________________

Annual flow duration

Annual flow duration for for 05079000 Red Lake River at Crookston, Minnesota

----------------------------------------------------------------------------------------------------------------------
                              Monthly and annual flow duration, in cubic feet per second
________________________________________________________________________________________________________________________________

 Percentage
  of days
 discharge     Jan.     Feb.     March    April    May      June     July      Aug.    Sept.    Oct.     Nov.     Dec.    Annual
 equaled or
  exceeded
________________________________________________________________________________________________________________________________

  95           30.4     31.8     60.9     241      211      125      52.2     25.5     24.0     25.1     37.0     30.7     49.9
  90           73.8     72.2     118      363      288      212      133      72.1     76.8     101      98.5     76.9     108
  85           105      97.5     148      487      408      311      205      137      119      136      134      111      159
  80           142      127      187      634      540      412      278      180      184      185      175      158      208
  75           167      158      238      780      664      533      356      231      240      240      212      183      271
  70           193      184      318      932      762      655      456      282      297      292      269      230      342
  65           228      223      387      1,100    893      775      568      339      374      347      319      282      414
  60           309      311      446      1,320    1,030    915      699      409      481      423      365      334      489
  55           365      380      506      1,610    1,160    1,050    808      497      558      523      422      388      573
  50           428      429      569      1,870    1,300    1,210    910      587      643      615      487      465      663
  45           486      467      640      2,180    1,450    1,390    1,040    682      760      724      557      527      773
  40           535      513      736      2,530    1,680    1,570    1,160    779      874      834      642      588      893
  35           590      565      860      2,960    1,940    1,780    1,290    879      985      944      738      649      1,010
  30           649      626      948      3,500    2,290    1,990    1,420    993      1,090    1,050    854      724      1,130
  25           733      699      1,040    4,090    2,770    2,260    1,630    1,130    1,190    1,160    967      823      1,280
  20           872      807      1,180    4,670    3,300    2,550    1,890    1,320    1,340    1,310    1,080    919      1,530
  15           965      921      1,410    5,520    3,830    2,970    2,280    1,550    1,510    1,490    1,240    1,020    1,900
  10           1,050    1,020    2,060    6,800    4,530    3,550    2,830    1,860    1,750    1,830    1,450    1,150    2,540
  5            1,220    1,100    3,530    9,260    5,670    4,550    3,890    2,340    2,120    2,270    1,860    1,380    3,920
________________________________________________________________________________________________________________________________
--------------------------------------------------------------------------------------------------
                      Probability of occurrence of annual high discharges
                                  [ng, statistic not given]
__________________________________________________________________________________________________

                                                       Maximum mean discharge
                                                              (ft3/s)1
                                       ___________________________________________________________

             Recurrence     Maximum
Exceedance    interval   instantaneous  3-day period  7-day period  15-day period  30-day period
probability    (years)      (ft3/s)
__________________________________________________________________________________________________

  0.99         1.01         870         647           528           395            319
  0.95         1.05         1,770       1,380         1,150         878            690
  0.90         1.11         2,510       2,000         1,670         1,290          1,010
  0.80         1.25         3,730       3,030         2,550         2,000          1,540
  0.50         2            7,360       6,140         5,210         4,140          3,190
  0.20         5            13,100      11,100        9,430         7,560          5,890
  0.10         10           17,100      14,500        12,300        9,870          7,780
  0.04         25           22,100      18,700        15,800        12,700         10,200
  0.02         50           25,700      21,700        18,300        14,700         11,900
  0.01         100          29,100      24,600        20,700        16,600         13,500
  0.005        200          32,400      27,300        22,900        18,300         15,100
  0.002        500          36,700      ng            ng            ng             ng
__________________________________________________________________________________________________
1Historic adjustment applied.
------------------------------------------------------------------------------------
                    Probability of occurrence of annual low discharges
____________________________________________________________________________________

                                     Minimum mean discharge (ft3/s)
                    ________________________________________________________________

                                       Number of consecutive days
                    ________________________________________________________________

Non-       Recur-
exceed-    rence
ance       inter-   1       3     7      14     30     60     90     120     183
prob-       val
ability   (years)
____________________________________________________________________________________

0.05       20       12.4   15.1   17.2   19.5   23.8   28.2   31.8   36.1   43.8
0.10       10       24.7   29.8   33.9   38.2   45.6   53.8   60.8   68.5   82.2
0.20       5        52.1   62.5   70.7   78.9   92.2   108    122    136    161
0.50       2        171    198    224    246    277    317    354    387    456
____________________________________________________________________________________
-------------------------------------------------------------------------------------
                   Probability of occurrence of seasonal low discharges
_____________________________________________________________________________________

                                         Minimum mean discharge (ft3/s)
                            _________________________________________________________

                                           Number of consecutive days
                            _________________________________________________________

   Non-       Recurrence
exceedance     interval     1      7      14     30          1      7      14     30
probability    (years)
_____________________________________________________________________________________

                            December-January-February            March-April-May
                            __________________________      ___________________________

0.05           20           23.6   25.7   27.6   30.7        34.2   46.7   52.4   84.6
0.10           10           46.0   50.8   53.7   58.8        61.1   79.9   89.2   139
0.20           5            94.7   105    110    118         116    144    160    239
0.50           2            291    323    332    350         330    374    409    579

                                June-July-August             September-October-November
                             __________________________      ___________________________

0.05           20           18.3   26.1   31.5   41.4        16.7   23.2   26.0   30.9
0.10           10           38.0   52.4   62.9   80.0        32.9   47.1   53.3   63.6
0.20           5            84.2   112    133    163         68.6   100    114    137
0.50           2            300    369    424    501         219    317    364    440
_____________________________________________________________________________________
-------------------------------------------------------------------------------------
               Annual peak discharge and corresponding gage height
                                 [--, no data]
_____________________________________________________________________________________

                          Gage     Peak                              Gage     Peak
Water    Date            height  discharge    Water   Date          height  discharge
year                     (feet)   (ft3/s)      year                 (feet)   (ft3/s)
_____________________________________________________________________________________

          Annual peak discharge, by year, and corresponding gage height

11897    April 11        25.20    18,900     1947    June 12         18.08    12,400
1902     May 21          10.00    5,170      1948    April 19      --         9,520
1904     April 24        20.42    13,700     1949    June 2          17.43    10,700
1905     May 13          14.50    8,730      1950    May 7           25.70    27,400
1906     April 15        21.00    14,600     1951    April 7         19.00    12,600
1907     April 4         12.04    6,330      1952    April 11        12.65    6,320
1908     April 10        17.00    10,700     1953    March 24        8.01     2,560
1909     July 21         8.77     3,680      1954    April 12        11.37    5,330
1910     March 20        14.20    7,920      1955    April 8         18.30    12,4003
1911     June 10         8.45     3,620      1956    April 20        19.78    14,000
1912     September 29  --         2,120      1957    June 29         18.10    11,800
1913     April 8       --         7,170      1958    July 7          8.62     3,370
1914     June 12         7.40     2,630      1959    April 5         11.72    5,630
1915     June 29         14.25    7,860      1960    April 6         12.56    5,520
1916     April 17        21.80    15,900     1961    March 27        5.67     1,450
1917     April 11      --         5,480      1962    June 11         21.90    16,700
1918     April 2         6.50     1,950      1963    April 9         13.25    6,820
1919     July 5          21.10    14,900     1964    June 20         11.74    5,550
1920     March 25        23.30    9,520      1965    April 14        23.51    19,400
1922     May 13          13.00    6,910      1966    April 3         24.41    21,500
1923     April 20      --         5,820      1967    April 1         23.49    19,300
1924     April 23        5.20     1,140      1968    July 19         17.17    11,100
1925     June 9          13.50    7,300      1969    April 12        27.33    28,400
1926     March 24        12.30    6,500      1970    April 26        19.05    13,300
1927     April 13        14.00    7,700      1971    April 10        20.74    15,300
1928     April 8       --         3,910      1972    April 16        20.28    14,700
1929     March 19        14.90    7,620      1973    September 26    10.86    4,960
1930     May 13          10.30    4,770      1974    April 23        22.89    16,400
1931     March 26        4.93     1,030      1975    April 18        21.97    15,600
1932     April 9         9.78     4,390      1976    April 3         19.45    12,500
1933     April 2         5.92     1,440      1977    May 20          8.66     3,440
1934     April 8         6.89     1,490      1978    April 7         23.11    18,100
1935     March 27        8.38     2,490      1979    April 26        24.99    21,900
1936     April 18        11.33    4,540      1980    April 9         12.31    6,600
1937     August 4        10.25    3,750      1981    June 29         13.56    7,120
1938     May 10          12.62    5,910      1982    April 17        16.12    9,320
1939     April 24        8.92     3,050      1983    June 23         13.98    7,330
1940     April 16        14.73    6,000      1984    June 10         20.71    14,400
1941     June 9        --         6,190      1985    August 19       16.38    9,580
1942     March 28      --         7,090      1986    April 1         19.47    11,500
1943     April 8         16.88    9,420      1987    May 28          11.22    5,360
1944     August 11       12.20    5,770      1988    April 8         10.90    5,090
1945     March 28        15.96    9,130      1989    April 17        16.11    8,800
1946     March 24      --         9,020      1990    June 23         4.60     916
1991     June 13         6.99     2,200      1993    April 1         18.24    7,400
1992     April 28      --         2,460      1994    July 10         20.41    13,600

Annual peak discharge, from highest to lowest, and corresponding gage height

1969     April 12        27.33    28,400     1927    April 13        14.00    7,700
1950     May 7           25.70    27,400     1929    March 19        14.90    7,620
1979     April 26        24.99    21,900     1993    April 1         18.24    7,400
1966     April 3         24.41    21,500     1983    June 23         13.98    7,330
1965     April 14        23.51    19,400     1925    June 9          13.50    7,300
1967     April 1         23.49    19,300     1913    April 8       --         7,170
11897    April 11        25.20    18,900     1981    June 29         13.56    7,120
1978     April 7         23.11    18,100     1942    March 28      --         7,090
1962     June 11         21.90    16,700     1922    May 13          13.00    6,910
1974     April 23        22.89    16,400     1963    April 9         13.25    6,820
1916     April 17        21.80    15,900     1980    April 9         12.31    6,600
1975     April 18        21.97    15,600     1926    March 24        12.30    6,500
1971     April 10        20.74    15,300     1907    April 4         12.04    6,330
1919     July 5          21.10    14,900     1952    April 11        12.65    6,320
1972     April 16        20.28    14,700     1941    June 9        --         6,190
1906     April 15        21.00    14,600     1940    April 16        14.73    6,000
1984     June 10         20.71    14,400     1938    May 10          12.62    5,910
1956     April 20        19.78    14,000     1923    April 20      --         5,820
1904     April 24        20.42    13,700     1944    August 11       12.20    5,770
1994     July 10         20.41    13,600     1959    April 5         11.72    5,630
1970     April 26        19.05    13,300     1964    June 20         11.74    5,550
1951     April 7         19.00    12,600     1960    April 6         12.56    5,520
1976     April 3         19.45    12,500     1917    April 11      --         5,480
1947     June 12         18.08    12,400     1987    May 28          11.22    5,360
1955     April 8         18.30    12,400     1954    April 12        11.37    5,330
1957     June 29         18.10    11,800     1902    May 21          10.00    5,170
1986     April 1         19.47    11,500     1988    April 8         10.90    5,090
1968     July 19         17.17    11,100     1973    September 26    10.86    4,960
1908     April 10        17.00    10,700     1930    May 13          10.30    4,770
1949     June 2          17.43    10,700     1936    April 18        11.33    4,540
1985     August 19       16.38    9,580      1932    April 9         9.78     4,390
1920     March 25        23.30    9,520      1928    April 8       --         3,910
1948     April 19      --         9,520      1937    August 4        10.25    3,750
1943     April 8         16.88    9,420      1909    July 21         8.77     3,680
1982     April 17        16.12    9,320      1911    June 10         8.45     3,620
1945     March 28        15.96    9,130      1977    May 20          8.66     3,440
1946     March 24      --         9,020      1958    July 7          8.62     3,370
1989     April 17        16.11    8,800      1939    April 24        8.92     3,050
1905     May 13          14.50    8,730      1914    June 12         7.40     2,630
1910     March 20        14.20    7,920      1953    March 24        8.01     2,560
1915     June 29         14.25    7,860      1935    March 27        8.38     2,490
1992     April 28      --         2,460      1961    March 27        5.67     1,450
1991     June 13         6.99     2,200      1933    April 2         5.92     1,440
1912     September 29  --         2,120      1924    April 23        5.20     1,140
1918     April 2         6.50     1,950      1931    March 26        4.93     1,030
1934     April 8         6.89     1,490      1990    June 23         4.60     916
_____________________________________________________________________________________
1Reported by Professor E.F. Chandler.

---------------------------------------------------------------------------------------------------------------------------------
                             Monthly and annual mean discharges, in cubic feet per second
          [Data were not rounded in accordance with U.S. Geological Survey publication standards; --, no data]
__________________________________________________________________________________________________________________________________

Year     Oct.     Nov.    Dec.     Jan.     Feb.     March    April     May       June     July     Aug.     Sept.    Annual
__________________________________________________________________________________________________________________________________

1901    --       --       --       --       --       --       --        --        2,911    3,789    1,775    1,349    --
1902    1,550    1,220    612.0    522.0    605.0    2,441    2,185     4,117     3,898    1,914    1,165    1,027    1,778
1903    1,181    1,346    969.0    880.0    795.0    1,010    4,360     2,318     1,815    995.5    671.0    1,388    1,475
1904    1,934    1,308    1,900    627.0    504.0    490.0    6,655     5,444     3,341    1,815    937.9    1,020    2,164
1905    1,021    892.7    638.0    495.0    504.0    828.0    1,988     3,196     2,077    2,947    3,031    3,009    1,726

1906    2,261    1,675    1,600    1,500    1,020    1,500    8,116     3,783     2,545    1,801    1,516    1,255    2,381
1907    983.2    835.7    700.0    650.0    460.0    1,264    4,372     2,078     2,183    1,225    854.4    994.5    1,383
1908    1,040    668.2    626.0    467.0    508.0    620.0    4,662     3,750     3,046    1,340    1,188    1,185    1,589
1909    860.1    803.1    437.0    479.8    385.0    657.7    2,243     1,517     977.0    1,677    2,282    1,341    1,142
1910    1,484    1,150    946.0    754.0    700.0    3,626    4,117     1,983     1,064    546.2    351.5    333.1    1,424

1911    293.2    216.8    219.0    150.0    120.0    434.0    657.6     450.0     977.1    142.3    109.4    81.4     320.8
1912    98.4     63.7     80.0     31.0     37.0     43.0     391.4     313.3     236.2    309.6    296.9    636.3    211.0
1913    697.0    362.1    165.0    137.3    125.4    117.6    3,350     725.1     365.5    276.9    255.7    266.1    568.3
1914    309.6    264.3    180.1    203.2    203.9    454.8    1,389     1,080     1,497    1,001    375.5    548.1    625.8
1915    546.1    603.8    465.5    383.9    452.9    542.9    1,335     1,340     2,354    2,962    712.4    599.7    1,027

1916    600.6    483.5    558.4    450.4    461.7    689.5    6,664     4,459     3,170    2,781    1,467    1,617    1,947
1917    1,087    871.1    621.5    386.5    430.5    736.5    3,400     1,437     879.5    643.9    273.7    160.4    910.0
1918    269.8    287.8    196.5    127.7    91.4     669.1    644.0     725.2     712.1    331.6    353.6    196.8    385.4
1919    191.4    320.0    268.0    223.0    217.0    538.8    1,466     914.6     912.9    5,581    2,044    505.6    1,109
1920    620.0    441.0    357.0    386.0    422.0    3,450    3,976     1,452     1,990    1,390    658.8    543.2    1,307

1921    548.9    486.0    486.0    472.0    455.0    441.0    1,598     959.2     1,193    551.2    516.6    547.2    686.8
1922    520.9    419.7    440.0    300.0    350.0    380.0    2,567     2,605     962.5    517.6    281.5    478.0    819.2
1923    327.6    468.7    239.8    190.0    170.0    160.0    2,136     1,292     693.2    534.4    236.1    273.8    559.7
1924    341.9    312.0    271.0    167.7    172.4    258.4    690.3     676.9     477.8    237.4    161.8    68.7     319.8
1925    163.4    116.8    97.4     89.4     57.1     452.6    580.7     725.0     2,673    579.5    68.2     195.2    482.2

1926    648.4    501.0    443.2    447.9    385.2    1,845    1,376     714.4     1,347    887.7    363.7    313.3    774.7
1927    410.6    440.0    320.0    240.0    180.0    628.7    3,981     5,201     2,710    1,094    847.1    897.5    1,416
1928    845.3    664.3    550.0    450.0    470.0    1,339    2,090     1,394     1,871    1,148    1,009    1,439    1,105
1929    938.5    782.3    719.6    669.4    474.6    3,234    1,933     1,210     764.7    468.5    301.9    237.8    982.5
1930    255.2    259.0    203.5    165.6    137.8    287.0    1,494     1,679     633.5    348.7    146.6    102.0    477.2

1931    125.9    175.2    178.5    118.1    148.7    263.5    361.7     231.2     225.0    77.6     30.5     21.1     162.8
1932    34.1     99.7     70.9     52.9     56.5     219.5    1,297     317.8     81.0     37.2     19.1     12.8     190.3
1933    12.2     30.9     27.2     23.0     29.4     108.2    609.0     162.5     122.7    36.7     15.4     13.3     98.7
1934    8.79     11.7     20.0     15.6     18.5     130.8    501.2     153.6     80.4     44.2     12.3     8.87     83.6
1935    10.5     23.6     20.9     16.1     21.2     341.3    519.9     283.6     159.0    90.3     32.1     56.7     131.5

1936    31.3     31.3     28.9     31.8     25.0     24.9     1,366     470.2     91.3     26.2     13.2     10.4     177.9
1937    8.02     10.1     5.34     19.8     17.8     26.2     403.7     716.2     382.5    704.2    1,161    577.6    338.5
1938    167.3    92.2     35.9     59.0     80.7     619.6    293.2     3,328     1,041    347.7    108.8    142.3    531.4
1939    155.3    132.6    153.4    157.1    142.0    200.6    659.7     413.0     310.0    180.4    92.9     235.6    235.7
1940    287.9    266.3    241.3    156.9    173.8    186.0    2,016     1,005     481.8    216.5    149.6    143.1    442.0

1941    214.9    243.8    182.3    209.4    211.8    196.9    2,647     738.3     2,536    506.7    305.2    892.0    735.6
1942    1,087    711.0    539.9    448.1    477.9    1,561    2,911     2,829     816.4    287.3    341.5    1,276    1,109
1943    578.1    355.0    312.9    363.2    337.9    529.0    3,966     2,270     3,449    1,416    930.7    951.5    1,286
1944    865.1    683.4    499.8    413.5    448.6    493.9    1,329     1,229     2,283    1,484    1,907    1,533    1,097
1945    1,275    1,549    1,187    709.7    700.0    3,406    5,202     2,901     1,392    860.8    572.8    969.2    1,729

1946    1,088    737.3    600.3    569.4    542.1    3,620    3,867     1,745     1,013    764.1    350.3    464.5    1,284
1947    751.9    590.1    527.7    496.5    454.3    634.5    4,262     3,308     5,572    2,472    941.2    1,133    1,760
1948    1,232    892.3    979.0    912.9    637.9    675.8    6,552     3,409     1,071    954.7    659.3    566.9    1,542
1949    400.9    400.9    331.5    351.6    353.6    476.4    2,587     1,256     2,931    1,214    1,978    1,260    1,128
1950    854.8    866.3    600.0    664.5    655.4    793.5    5,760     15,290    4,702    3,602    1,670    1,872    3,129

1951    2,352    1,778    1,763    1,663    1,464    1,631    5,573     4,265     1,947    1,216    522.8    729.3    2,076
1952    682.4    685.4    1,049    1,140    1,210    1,178    3,236     1,942     1,707    2,326    858.8    599.6    1,384
1953    415.7    371.9    359.3    367.4    375.7    841.0    890.2     1,033     1,252    1,037    452.4    392.8    650.4
1954    356.1    342.7    328.4    293.7    302.8    412.5    1,860     1,305     1,209    673.8    433.8    358.5    656.2
1955    347.2    407.4    389.3    321.6    337.4    365.5    2,593     706.6     1,118    487.0    270.6    258.5    630.9

1956    261.6    178.5    189.2    226.1    230.7    230.1    3,408     2,489     847.6    874.5    301.2    1,292    874.9
1957    360.4    611.7    355.2    231.1    118.4    669.3    2,510     1,272     2,797    3,333    1,375    2,188    1,321
1958    2,295    1,806    782.7    827.0    776.0    1,001    981.0     485.3     603.6    1,532    364.2    103.8    965.7
1959    97.4     117.7    74.5     73.9     83.8     298.4    1,519     685.5     481.1    317.8    182.6    128.9    338.0
1960    219.8    211.4    200.9    184.6    176.6    191.0    2,280     755.9     942.7    420.7    70.5     85.1     475.5

1961    115.6    173.6    71.6     64.5     68.3     405.5    661.4     569.6     92.9     89.7     52.7     184.8    213.0
1962    217.0    142.6    69.5     79.0     82.0     103.0    2,849     4,720     7,205    3,796    1,905    1,733    1,912
1963    1,517    1,370    939.3    983.2    882.1    1,263    3,192     2,074     2,221    1,245    652.1    799.2    1,427
1964    1,077    598.6    455.9    544.2    513.1    361.6    1,841     1,307     2,505    1,157    754.5    464.5    963.2
1965    996.2    820.1    614.2    622.3    634.6    635.5    7,321     3,820     3,866    1,813    795.1    1,140    1,919

1966    2,406    1,369    1,219    1,086    1,040    1,685    10,260    5,254     2,398    1,389    1,755    1,488    2,611
1967    1,201    1,152    1,108    1,053    1,079    1,459    6,833     4,750     2,519    1,324    837.9    833.7    2,011
1968    540.7    390.4    344.0    312.6    260.5    1,212    841.3     399.1     2,151    3,616    1,857    1,316    1,107
1969    950.5    1,155    1,250    1,245    1,240    1,220    7,840     3,651     2,024    1,180    938.3    1,228    1,988
1970    1,787    1,333    1,065    1,114    1,036    1,039    5,595     3,890     4,061    1,535    813.3    965.4    2,017


1971    932.5    943.1    790.0    772.4    860.5    983.2    2,995     1,428     1,169    792.3    656.7    563.1    1,072
1972    2,836    3,172    1,055    902.4    921.7    2,290    5,409     2,976     1,601    939.1    1,177    1,278    2,044
1973    1,114    680.9    658.2    603.7    606.8    1,695    554.7     615.9     407.4    244.1    496.0    2,191    822.6
1974    2,301    1,319    985.8    928.4    1,007    1,003    6,856     5,755     2,755    1,621    2,024    1,456    2,337
1975    1,580    1,429    915.1    994.2    906.8    934.2    6,064     4,697     2,509    6,851    1,788    1,747    2,544

1976    1,966    1,604    1,092    1,337    1,238    1,602    3,409     1,340     1,149    915.5    990.6    669.3    1,441
1977    279.6    183.8    194.8    176.6    181.0    276.6    429.1     366.0     224.6    384.1    191.3    450.9    278.5
1978    628.5    670.0    731.9    623.9    622.1    693.2    7,509     1,798     1,289    1,360    832.4    610.3    1,442
1979    613.1    520.3    503.9    490.0    506.2    556.6    7,678     4,489     2,613    2,322    1,571    1,166    1,919
1980    1,138    936.5    1,201    1,085    1,038    1,070    2,658     808.7     642.7    384.9    415.1    381.3    977.7

1981    186.2    179.9    138.2    125.8    150.2    237.3    231.8     236.8     887.5    1,349    873.1    1356     497.0
1982    1,768    1,131    965.5    982.6    914.3    992.9    4,540     3,456     1,712    2,007    1,355    992.3    1,737
1983    2,193    1,538    1,305    1,087    956.8    2,576    2,384     1,510     2,613    1,973    1,778    1,476    1,787
1984    1,385    1,256    1,022    967.1    1,039    1,787    2,463     1,166     3,498    1,346    821.7    572.0    1,440
1985    803.4    908.6    1,030    1,002    941.4    2,117    1,900     2,728     2,942    3,013    3,868    2,697    2,003

1986    2,416    1,405    1,048    992.9    953.9    2,345    5,623     4,336     1,777    1,301    1,085    1,181    2,043
1987    852.3    662.2    806.5    721.0    694.6    1,919    880.3     1,305     728.5    837.5    671.8    441.3    880.4
1988    226.6    199.6    170.8    160.0    160.0    506.7    1,416     235.4     187.7    147.9    168.1    193.2    313.1
1989    137.9    128.3    139.4    181.3    152.3    152.7    3,546     876.8     537.5    337.4    167.1    156.1    539.9
1990    115.7    96.6     78.0     96.0     103.3    248.9    415.5     221.3     448.9    179.8    138.6    82.9     185.3

1991    95.6     116.6    104.0    94.3     91.7     184.5    236.7     353.7     251.9    635.5    217.6    446.7    236.6
1992    170.6    145.1    146.4    145.8    145.7    1,002    1,381     919.2     242.6    521.7    559.2    1,253    552.7
1993    532.9    261.8    594.4    579.9    593.4    896.9    2,638     988.7     1,479    2,453    2,836    2,414    1,358
1994    1,226    723.2    729.4    661.5    600.2    1,298    1,141     1,234     1,815    4,375    1,168    1,325    1,366
__________________________________________________________________________________________________________________________________
 


U.S. Department of the Interior || U.S. Geological Survey
Maintainer: Webmaster
Last update: Wednesday, 23-Feb-2005 09:45:55 EST
Privacy || Disclaimer|| Accessibility || FOIA
URL: http://nd.water.usgs.gov/pubs/ofr/ofr9821/htdocs/l.05079000.html
FirstGov, "Your First Click to the U.S. Government"