USGS Water-Year Summary 2020
02357500 LAKE SEMINOLE NEAR CHATTAHOOCHEE, FL
LOCATION - Lat 30°42'31.4", long 84°51'49.6" referenced to North American Datum of 1983, Gadsden County, FL, Hydrologic Unit 03130011, on right upstream lock wall of Jim Woodruff Dam on Chattahoochee River, 0.6 miles upstream from bridge on US 90, and 1.5 miles northwest of Chattahoochee.
DRAINAGE AREA - 17,100 mi².
PERIOD OF RECORD - August 2007 to current year. Elevation records collected at same site since February 1957 to July 2007 in files of the U.S. Army Corps of Engineers.
GAGE - Satellite telemetry with a water-stage recorder. Datum of gage is 0.00 feet above National Geodetic Vertical Datum (NGVD) of 1929 (levels by US Army Corps of Engineers).
COOPERATION - U.S. Army Corps of Engineers, Mobile district.
EXTREMES FOR PERIOD OF RECORD - Maximum contents, 406,600 acre-feet, April 21, 2014; maximum elevation recorded, 78.01 feet, April 21, 2014; minimum contents, 310,700 acre-feet, October 10, 2018; minimum elevation recorded, 75.39 feet, October 10, 2018.
PERIOD OF RECORD - August 2007 to current year.
INSTRUMENTATION - Tipping-bucket raingage.