Stale — older than 1 week USGS

Chicago Ss Canal At Lockport Controlling Works, IL

Updated October 12, 2011 at 05:45:00 AM · Approved · Site 05536998

Current conditions

Historical trends

Hourly measurements

Detailed readings by hour, organized by day

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Official USGS page: https://waterdata.usgs.gov/monitoring-location/USGS-05536998/ (may include cooperator information)