Data source
EPA/USGS/NWQMC partners
Water Quality Portal · source identity, access, license, and current Pelagio Defense usage.
- What it provides
- water quality
- Coverage
- United States
- Time coverage
- Sampling records; provider-specific refresh
- Typical latency
- Dataset dependent
- Access
- REST, CSV, GEOJSON, WMS · no account required
- License
- U.S. Government/partner-contributed data; record attribution applies
- Pelagio Defense status
- planned · not a production default
- Registry verified
- 2026-08-31
- Checked facts
- Legacy NWIS content stopped refreshing after 2024-03-11 · WQX 3.0 beta reports continuous USGS data