USGS Water-Year Summary 2024
422920076275301 Tm-985, near Ithaca NY
Other aquifers
Genesee Formation
LOCATION - Lat 42°29'20", long 76°27'53" referenced to North American Datum of 1983, Tompkins County, NY, Hydrologic Unit 04140201, behind Ithaca USGS Water Science Center.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 71 ft. Upper casing diameter 6 in; top of first opening 12 ft, bottom of last opening 71 ft. Cased to 12 ft, open hole.
DATUM - Land-surface datum is 1,052.39 ft above North American Vertical Datum of 1988. Measuring point: Top of shelter shelf, 2.33 ft above land-surface datum, Jun. 16, 2014 to present.
PERIOD OF RECORD - August 2004 to current year.
GAGE - Water-stage recorder--15 minute; periodic measurements by USGS personnel.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 1.66 ft below land-surface datum, Apr. 3, 2005; lowest water level, 6.73 ft below land-surface datum, Sept. 29, 2020.