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 ÉC           Pesticide Concentrations 1966                   Avg Nitrogen Concentration                      
                                                                                                        Nitrogen Conc
Year            Temp (ÉC)               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**
 

HOME
 
Introduction

Activity Page

Team Page

Resources

Show Your Stuff

Evaluation

Teacher Page