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  • Water Quality Samples for Illinois

    Some complex retrievals may take a few minutes.
    Choose Site Selection Criteria
    There are 4,943 sites with water-quality data. Choose at least one of the following criteria to constrain the number of sites selected.

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       -- Identifier --

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              Site
       -- Attribute --

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              Data
       -- Attribute * --

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    * Selection of more than one data attribute will include all samples that meet all conditions selected.