USGS Water-Year Summary 2023
304712084395801 08E038
Floridan aquifer system
Upper Floridan Aquifer
LOCATION - Lat 30°47'11.7", long 84°39'57.95" referenced to North American Datum of 1927, Decatur County, GA, Hydrologic Unit 03130008,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 148 ft. Upper casing diameter 5.63 in; top of first opening 128.5 ft, bottom of last opening 148 ft.
DATUM - Land-surface datum is 100.05 ft above North American Vertical Datum of 1988. Measuring point: Recorder shelf (marked with arrow),original beginning date 20060302, 4.4 ft above land-surface datum, Jan. 21, 2004 to present. The land-surface datum was revised on March 11, 2024, based on a more accurate determination of the land-surface datum. Land-surface datum is 100.05 ft above North American Vertical Datum of 1988. Prior to March 11, 2024, the land-surface datum was 99 ft above National Geodetic Vertical Datum of 1929.
PERIOD OF RECORD - October 21, 2001 to current year.
COOPERATION - Georgia Department of Natural Resources, Environmental Protection Division.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - January 21, 2004 to Present