Data source
U.S. Geological Survey
USGS Water Data · source identity, access, license, and current Pelagio Defense usage.
- What it provides
- water level, water quality, sea surface temperature, salinity
- Coverage
- United States
- Time coverage
- Realtime and historical, site-dependent
- Typical latency
- Usually 15-minute readings transmitted hourly
- Access
- REST, GEOJSON · no account required
- License
- U.S. Government public data · attribution: U.S. Geological Survey
- Pelagio Defense status
- active · production default
- Registry verified
- 2026-08-31
- Checked facts
- Active adapter uses the new Water Data for the Nation OGC API · Latest-continuous readings preserve parameter codes and approval status · Null readings are never converted to zero · Legacy WaterServices decommissions in early 2027