Search Results for the EPA National Library Catalog

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Select Item	Title	Year Published
1	Improving water quality standards and assessment approaches for the Upper Mississippi River : UMR Clean Water Act biological assessment implementation guidance /	2011
2	Improving water quality standards and assessment approaches for the Upper Mississippi River : Upper Mississippi River Clean Water Act biological assessment implementation guidance project /	2011
3	The development and use of biological criteria for Ohio surface waters /	1989

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