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  1. 1

    Assessment of processes affecting low-flow water quality of Cedar Creek, west-central Illinois by Schmidt, A. R.

    Published: U.S. Geological Survey, 1989
    Description: ix, 70 pages : illustrations, maps ; 28 cm.
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    Assessment of processes affecting low-flow water quality of Cedar Creek, west-central Illinois
  2. 2

    Assessment of low-flow water quality in Richland Creek, Illinois by Freeman, W. O.

    Published: U.S. Dept. of the Interior, Geological Survey ; Books and Open-File Reports, U.S. Geological Survey, 1986
    Description: vii, 95 pages : illustrations, 2 maps ; 28 cm.
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    Assessment of low-flow water quality in Richland Creek, Illinois
  3. 3

    Assessment of water quality and factors affecting dissolved oxygen in the Sangamon River, Decatur to Riverton, Illinois, summer 1982 by Schmidt, A. R.

    Published: U.S. Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section, 1987
    Description: vii, 65 pages : illustrations, maps ; 28 cm.
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    Assessment of water quality and factors affecting dissolved oxygen in the Sangamon River, Decatur to Riverton, Illinois, summer 1982
  4. 4

    Assessment of low-flow water quality in the Du Page River, Illinois by Freeman, W. O.

    Published: U.S. Dept. of the Interior, Geological Survey ; [Open-File Services Section, Western Distribution Branch], 1986
    Description: viii, 98 pages : illustrations, 2 maps ; 28 cm.
    Government Document Book
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    Assessment of low-flow water quality in the Du Page River, Illinois

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