LOCATION.--Lat 43°12'27", long 75°23'33" referenced to North American Datum of 1983, Oneida County, NY, Hydrologic Unit 02020004, at Griffiss Air Force Base, Rome.
WELL CHARACTERISTICS.--Depth 52 ft. Upper casing diameter 2 in; top of first opening 42 ft, bottom of last opening 52 ft. Cased to 42 ft (screen, 42 ft to 52 ft). Elevation of land-surface datum is 489.97 ft above NAVD of 1988 (levels by United States Air Force).
DATUM.--Land-surface datum is 489.97 ft above North American Vertical Datum of 1988. Measuring point: Top of shelter shelf, 2.74 ft above land-surface datum, Sep. 11, 2006 to Aug. 9, 2022; Top of extended casing, 2.47 ft above land-surface datum, Sep. 9, 2016 to Aug. 9, 2022; Top of 2 in PVC extended casing, 2.78 ft above land-surface datum, Aug. 9, 2022 to present.  
PERIOD OF RECORD.--June 2003 to current year.
GAGE.--Water-stage recorder--15 minute; periodic manual measurements by USGS personnel. Prior to July 2003, tape measurement by USGS personnel.
REMARKS.--Satellite water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Highest water level, 40.19 ft below land-surface datum, June 4, 2007; lowest water level, 45.22 ft below land-surface datum, Dec. 18, 2016.

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