Water Quality Portal

Published by U.S. Geological Survey and U.S. EPA Office of Water (OW) | U.S. Environmental Protection Agency | Metadata Last Checked: July 12, 2025 | Last Modified: 2021-12-14

The Water Quality Portal (WQP) is the premiere source of discrete water-quality data in the United States and beyond. This cooperative service integrates publicly available water-quality data from the United States Geological Survey (USGS), the Environmental Protection Agency (EPA), and over 400 state, federal, tribal, and local agencies.

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Complete Metadata

bureauCode	[ "020:00" ]
dataQuality	true
identifier	28bc151c-da9c-4daa-a45d-cb92141cb6a2
landingPage	https://www.waterqualitydata.us/
primaryitinvestmentuii	020-000000103
programCode	[ "020:112" ]
temporal	1987/2021