KNIFE RIVER BASIN

                                          06339500  KNIFE RIVER NEAR GOLDEN VALLEY, ND

LOCATION.--Lat 4709'40", long 10203'39", in SE1/4 sec.34, T.143 N., R.90 W., Mercer County, Hydrologic Unit 10130201, on left
   bank 6 ft downstream from highway bridge, 4.5 mi downstream from Elm Creek and 9 mi south of Golden Valley.

DRAINAGE AREA.--1,230 mi2, approximately.

                                                    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--May 1903 to November 1906, April 1907 to November 1915, April 1916 to October 1919, and October 1921 to
   September 1924 (published as "at Broncho" or "near Broncho"), and April 1943 to current year. Monthly discharge only for some
   periods published in WSP 1309.

REVISED RECORDS (WATER YEARS).--WSP 1006:0 Drainage area. WSP 1279: 1904, 1914-19(M), 1922-24(M), 1944.

GAGE.--Water-stage recorder. Datum of gage is 1,847.13 ft above sea level. See WSP 1729 or 1917 for history of changes prior to
   May 1, 1946.

REMARKS.--Records fair.

                          DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
                                                       DAILY MEAN VALUES

        DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

          1      e9.0       11     13       e9.1     e8.9     e425       20       24       14     15       1.8       .36
          2      e8.5       12     14       e9.0     e8.9     e300       20       22       14     14       1.7       .42
          3      e8.0       12     13       e9.1     e9.0     e250       20       19       13     16       2.4       .61
          4      e8.5       12     12       e9.2     e9.1     e200       19       17       14     17       2.1       .80
          5      e9.0       11     13       e9.4     e9.2     e150       19       17       13     16       1.9      1.1

          6      e9.5       11     13       e9.5     e9.0     e100       18       18       14     19       1.8      1.3
          7     e11         11     13       e9.3     e8.8      e85       18       18       15     19       1.6      1.2
          8      12         11     13       e9.2     e8.7       80       17       23       14     25       1.5      1.2
          9      11         11     12       e9.1     e8.2       51       17       22       17     34       1.3      1.4
         10      11         11     11       e9.0     e7.8       55       16       30       16     38       1.1      1.3

         11      11         11     11       e8.9     e7.5       52       16       33       14     49       1.1      1.3
         12      12         12     11       e8.8     e7.3       39       16       39       12     50        .98     1.2
         13      13         12     11       e8.9     e7.2       34       16       40       16     35        .86     1.1
         14      13         12     11       e9.0     e7.0       36       21       43       25     50        .91    e1.1
         15      12         12     10       e9.2     e7.1       27       22       40       26     58        .81    e1.2

         16      11         14     10       e9.4     e7.0       24       21       37       29     35        .72     1.4
         17      11         14      9.8     e9.1     e7.1       24       22       33       28     23        .66     1.8
         18      12         14     e9.8     e9.0     e7.4       25       24       29       34     18        .63     1.5
         19      12         13     e9.7     e8.8     e7.8       25       26       26       33     14        .59     1.3
         20      12         14     e9.7     e8.7     e8.0       27       30       25       34     11        .55     1.2

         21      12         14     e9.6     e8.8     e8.9       25       32       23       32      9.1      .58     1.4
         22      11         13     e9.5     e8.9     e9.3       28       32       22       28      7.5      .53     2.3
         23      11         12     e9.6     e8.8    e10         30       33       21       27      6.5      .43     2.6
         24      11         12     e9.5     e8.9    e25         30       34       19       26      5.6      .42     2.6
         25      11         14     e9.4     e8.7   e200         27       35       17       27      4.7      .41     2.9

         26      10         13     e9.3     e8.5   e450         26       37       14       23      3.9      .41     2.9
         27      11         13     e9.4     e8.3   e500         26       34       15       20      3.3      .47     2.9
         28      11         12     e9.5     e8.8   e450         24       33       14       19      2.9      .53     2.9
         29      10         13     e9.4     e8.9   e400         23       31       14       17      2.4      .43     2.9
         30      10         13     e9.3     e9.0      ---       22       27       13       16      2.4      .41     3.1
         31      10        ---     e9.2     e9.0      ---       21      ---       12      ---      2.0      .35      ---

        TOTAL   334.5      370    333.7    278.3   2214.2     2291      726      739      630    606.3    29.98    49.29
        MEAN     10.8     12.3     10.8     8.98     76.4     73.9     24.2     23.8     21.0     19.6      .97     1.64
        MAX        13       14       14      9.5      500      425       37       43       34       58      2.4      3.1
        MIN       8.0       11      9.2      8.3      7.0       21       16       12       12      2.0      .35      .36
        AC-FT     663      734      662      552     4390     4540     1440     1470     1250     1200       59       98

        STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1903 - 2000, BY WATER YEAR (WY)


        MEAN     16.7     11.2     7.27     9.01     42.5      345      305     89.4      138     48.0     34.1     15.1
        MAX       245     69.7     23.0      140      299     1729     2448     1031     1193      255      725     97.5
        (WY)     1983     1983     1983     1974     1982     1972     1952     1970     1914     1969     1918     1978
        MIN       .46     1.93      .52     .026     .000     2.30     6.98     1.42     1.03     1.91      .28      .12
        (WY)     1993     1962     1962     1962     1959     1964     1981     1923     1961     1992     1959     1992

        SUMMARY STATISTICS           FOR 1999 CALENDAR YEAR        FOR 2000 WATER YEAR           WATER YEARS 1903 - 2000

        ANNUAL TOTAL                       33261.6                     8602.27
        ANNUAL MEAN                           91.1                       23.5                       88.1
        HIGHEST ANNUAL MEAN                                                                        235              1982
        LOWEST ANNUAL MEAN                                                                           5.38           1991
        HIGHEST DAILY MEAN                  2140     Mar 17             500     Feb 27           10300       Apr 17 1950
        LOWEST DAILY MEAN                      4.8   Aug 11                .35  Aug 31                .00    Sep  6 1905
        ANNUAL SEVEN-DAY MINIMUM               5.7   Aug  5                .42  Aug 26                .00    Jan 22 1959
        INSTANTANEOUS PEAK FLOW                                         550     Feb 27           11200       May  9 1970
        INSTANTANEOUS PEAK STAGE                                          a     Feb 27            b 26.70    Mar 26 1943
        ANNUAL RUNOFF (AC-FT)              65970                      17060                      63860
        10 PERCENT EXCEEDS                   200                         34                        119
        50 PERCENT EXCEEDS                    14                         12                         10
        90 PERCENT EXCEEDS                     7.7                        1.3                        2.1

        a  Unknown
        b  From floodmark
        e  Estimated
        
        
                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1950, 1964-65, 1972 to current year.

                                 WATER-QUALITY DATA, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000

                                DIS-     PH       PH       SPE-
                              CHARGE,   WATER    WATER    CIFIC    SPE-                       HARD-             MAGNE-
                               INST.    WHOLE    WHOLE     CON-    CIFIC                      NESS    CALCIUM    SIUM,
                               CUBIC    FIELD     LAB     DUCT-    CON-    TEMPER-  TEMPER-   TOTAL    DIS-      DIS-
                                FEET   (STAND-  (STAND-   ANCE     DUCT-    ATURE    ATURE    (MG/L    SOLVED   SOLVED
             DATE      TIME     PER      ARD      ARD      LAB     ANCE      AIR     WATER     AS      (MG/L    (MG/L
                               SECOND   UNITS)   UNITS)  (US/CM)  (US/CM)  (DEG C)  (DEG C)   CACO3)   AS CA)   AS MG)
                              (00061)  (00400)  (00403)  (90095)  (00095)  (00020)  (00010)  (00900)  (00915)  (00925)

         DEC
           15...       1000    10         --       --       --     2780     -11.0      .0       --       --       --
         JAN
           20...       1230     8.9       --       --       --     2890     -20.0      .0       --       --       --
         APR
           24...       1120    34        8.4      8.5     2570     2640      10.0    11.0      410     68.0     58.0
         MAY
           25...       1230    17         --       --       --     2280      20.0    15.0       --       --       --
         JUL
           10...       1200    39         --       --       --     3150      25.0    20.0       --       --       --
         AUG
           28...       1320      .51     8.0       --     2530     2460      25.0    23.0      360     51.0     56.0
         SEP
           29...       1100     3.0       --       --       --     2330       9.0    10.2       --       --       --


                                                                ANC                                        SOLIDS,
                           POTAS-   SODIUM                    UNFLTRD   CHLO-    FLUO-            SOLIDS,  RESIDUE
                            SIUM,     AD-   SODIUM,           TIT 4.5   RIDE,    RIDE,   SULFATE    DIS-   AT 180
                            DIS-    SORP-    DIS-               LAB     DIS-      DIS-    DIS-     SOLVED   DEG. C
                           SOLVED    TION   SOLVED             (MG/L    SOLVED   SOLVED   SOLVED   (TONS     DIS-
                  DATE     (MG/L    RATIO    (MG/L    SODIUM    AS      (MG/L    (MG/L    (MG/L     PER     SOLVED
                           AS K)             AS NA)  PERCENT   CACO3)   AS CL)   AS F)   AS SO4)    DAY)    (MG/L)
                          (00935)  (00931)  (00930)  (00932)  (90410)  (00940)  (00950)  (00945)  (70302)  (70300)

              DEC
                15...        --       --       --       --       --       --       --       --       --       --
              JAN
                20...        --       --       --       --       --       --       --       --       --       --
              APR
                24...      13.0      11       490      71       574      9.3       .6      890    176       1920
              MAY
                25...        --       --       --       --       --       --       --       --       --       --
              JUL
                10...        --       --       --       --       --       --       --       --       --       --
              AUG
                28...      14.0      11       470      73       594      8.1       .5      790      2.46    1790
              SEP
                29...        --       --       --       --       --       --       --       --       --       --


                          SOLIDS,
                          SUM OF                                        MANGA-            MOLYB-   SELE-    STRON-
                          CONSTI-  ARSENIC   IRON,    LEAD,   LITHIUM   NESE,   MERCURY   DENUM,   NIUM,     TIUM,
                          TUENTS,    DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-
                            DIS-    SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
                  DATE     SOLVED   (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                           (MG/L)   AS AS)   AS FE)   AS PB)   AS LI)   AS MN)   AS HG)   AS MO)   AS SE)   AS SR)
                          (70301)  (01000)  (01046)  (01049)  (01130)  (01056)  (71890)  (01060)  (01145)  (01080)

              DEC
                15...        --       --       --       --       --       --       --       --       --       --
              JAN
                20...        --       --       --       --       --       --       --       --       --       --
              APR
                24...      1870     <1.0      70        1      50.0      20       <.1       2      <1.0     1000
              MAY
                25...        --       --       --       --       --       --       --       --       --       --
              JUL
                10...        --       --       --       --       --       --       --       --       --       --
              AUG
                28...      1750      8.0      80       <1      60.0      30       <.1       9      <1.0     1000
              SEP
                29...        --       --       --       --       --       --       --       --       --       --

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