The answer
USGS Water Monitoring
Top verified match: it matches your intent, it is the official vendor server.
fresh · published 105d ago · verified 2026-07-11tested · static-verifiedsigned passport ✓score 47/100
Runners-up
- com.googleapis.monitoring/mcp47/100 · weaker match
- io.github.cyanheads/usgs-water-mcp-server35/100 · weaker match
- USGS Water MCPnot yet verified8/100 · weaker match