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EPA Water Quality Data

The Water Quality Portal is the nation's largest source for water quality monitoring data. The Water Quality Portal (WQP) uses the Water Quality Exchange (WQX) data format to share over 340 million water quality data records data from 400 federal, state, tribal and other partners.

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EPA Water Quality DataHTML
Water quality monitoring is a crucial aspect to protecting water resources....
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Field	Value
Last Updated	22 October 2023
Published	16 April 2020