Kohler River Data

The following sets of data represent various water and river related information collected over a number of years and at the marked locations along the Kohler River (See Map Stations 1 to 10)

        KOHLER RIVER                           KOHLER RIVER                                     KOHLER RIVER

 Average Water Temperature ƒC           Pesticide Concentrations 1966                   Avg Nitrogen Concentration                      
                                                                                                        Nitrogen Conc

Year            Temp (ƒC)               Station         Pesticide Conc (ppb)            Year            (ppb)part/bil'n

1945            63                      1               1.1                             1945            0.0

1950            64                      2               1.0                             1950            0.0

1955*           65                      3               5.8                             1955*           2.2

1960            66                      4               10.4                            1960            2.8

1970            67                      6               7.9                             1970            5.5

1980            64                      8               4.1                             1980            6.7

1985            66                      9               3.2                             1985            7.2

1990            68                      10              2.5                             1990            8.9

1995            67                                                                      1995            9.5

* Kohler Dam Completed                                                                  * Kohler Dam Completed

        KOHLER RIVER                            KOHLER RIVER                            KOHLER RIVER

Average Water Flow (Cubic ft./sec)    Fish  Toxicity at Stations '96            Avg Rainfall/Year/in inches

Year            River Flow              Station       Toxicity (%Mortality)     Year            Rainfall/Year

1945            2800                    1               0.2                     1945            30.2

1950            2550                    2               0.5                     1950            28.7

1955*           1890                    3               18.0                    1955*           27.5

1960            1720                    4               45.0                    1960            23.9

1975            1580                    7               11.0                    1975            21.1

1980            2300                    8               5.0                     1980            27.3

1985            1640                    9               0.1                     1985            23.7

1990            1320                    10              0.0                     1990            21.9

1995            1510                                                            1995            26.5

* Kohler Dam Completed                                                          * Kohler Dam Completed

    KOHLER RIVER                             KOHLER RIVER

Salmon Reaching Spawning Grounds      Pesticide Use on Land Next to River

                Salmon Runs                     (Tons)

Year            (fish/year)             Year            Pesticide Applied

1945            23243                   1945            2.8

1950            24692                   1950            4.5

1955*           28212                   1955*           12.6

1960            15509                   1960            14.8

1965            13232                   1970            24.8

1975            14982                   1975            28.6

1980            12745                   1980            29.0

1990            13517                   1990            40.8

1995            11892                   1995            41.4

* Kohler Dam Completed                  * Kohler Dam Completed

**See also Kohler River Map**
 

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