USGS Water Services — API status & change history

Water quality and level info for rivers and lakes

Last checked 2026-07-11T04:23 UTC — HTTP 200, 550 ms. 30-day uptime: 100.00%.

14-day latency:

Auth: none · HTTPS: yes · Docs

Monitor this API — free, unlimited catalog subscriptions.

Change history

No confirmed changes yet. That's a good sign.