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Toxic Substances Hydrology Program

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Little Sioux River Upstream and Downstream of Spencer, and Ocheyedan River near Spencer

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spencer, ia

Little Sioux River Upstream of Spencer

Little Sioux River Downstream of Spencer

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Ocheyedan River near Spencer, upstream of Spencer

Locations Where Samples Were Taken

Winnebago River Cedar River Cedar River Iowa River Des Moines River Sewer Creek Iowa River South Skunk River Fourmile Creek Des Moines and Raccoon Rivers Des Moines River and Lizard Creek Outlet Creek Little Sioux and Ocheyedan Rivers Milford CreekOWCS Network Map

To see photos of the sampling locations near a specific town, click on the town names.  Hover over the town name to see which streams were sampled.  Or to see a table of sites, click here.

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U.S. Department of the Interior, U.S. Geological Survey
Toxic Substances Hydrology Program
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Last modified Thursday, April 18, 2002