A shorter route to your places.
Save a lake, beach or river gauge from its page. Your list stays in this browser.
Your places, one easy check.
Save a lake, beach or river gauge to find it here next time. Stored in this browser; no account needed.
Find a place →Saved places and previous-check readings stay on this device. Clearing browser storage removes them. Comparisons use the last reading retained when this list was opened in a previous page session, not every change between visits. Dates identify the actual observation interval; this is not a live alert or a safety assessment.
Age badges compare the saved page’s observation timestamp with your device clock. Reload to get the latest published site snapshot; this does not request a new agency reading. See refresh schedules.
Explore all calculators & toolkits →
See seven- and thirty-day reservoir changes with downloadable evidence →