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National Assessment Database

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National Assessment Database
About this Database

National Water Quality Inventory Report to Congress, 2002 Reporting Cycle

Assessing Water Quality (Questions and Answers)

The 2002 National Assessment Database (Fact Sheet)

Previous National Water Quality Reports

Enviromapper for Water

Search for water quality assessment information about a particular waterbody. Select the state of interest, and enter a waterbody name.
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