Water Quality Portal
The Water Quality Portal (WQP) is a cooperative service sponsored by the United States Geological Survey (USGS), the Environmental Protection Agency (EPA), and the National Water Quality Monitoring Council (NWQMC).
Download water-quality data in Excel, CSV, TSV, and KML formats.
HOW TO USE THE WQP
Web Services Guide
NATIONAL RESULTS COVERAGE
Water-quality data in your state.
ABOUT THE WQP
What is the WQP?