Potential Nonpoint-source Contamination of the Spring Mill Lake Drainage Basin

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Projects > Water Quality and Karst Hydrogeology of Spring Mill Lake Drainage Basin

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Map showing locations of areas within the Spring Mill Lake watershed used for particular purposes.

The land use/land cover database was used to determine the percentage of the total watershed area that is used for each of the following land use categories:

Forest 21.7%
Crop Reserve Program 16.0%
Pasture 13.7%
Crop 13.4%

Soybean 10.3%
Corn 7.4%
Grass 7.2%

Residential 6.9%
Golf Course 2.0%
Industrial 0.6%

Water 0.4%
Wheat 0.3%
Orchard 0.1%

Pie chart graphs showing percentages of fertilizers and pesticides used in the Spring Mill Lake watershed.

The land use/land cover database was also used to calculate annual agricultural application of various pesticides and inorganic fertilizers within the Spring Mill Lake watershed. The application rates were then used to calculate the estimated annual load or transport of the pesticides and fertilizers in the streams and ground water within the watershed.

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Projects > Water Quality and Karst Hydrogeology of Spring Mill Lake Drainage Basin

Land Use/Land Cover