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USGS 421903074152301 Local number, G-644, Windham NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 42°19'03", long 74°15'23" referenced to North American Datum of 1927, Greene County, NY, Hydrologic Unit 02020005, at Windham.
WELL CHARACTERISTICS.--Depth 352 ft. Upper casing diameter 6 in; top of first opening 28 ft, bottom of last opening 214 ft. Cased to 26 ft, open hole.
DATUM.--Land-surface datum is 1,695.95 ft above North American Vertical Datum of 1988. Measuring point: Top of casing, 1.10 ft above land-surface datum, Oct. 12, 2017 to present.  
PERIOD OF RECORD.--March 1991 to April 1992, April 2003 to current year.
GAGE.--Water-stage recorder--15 minute; periodic manual measurements by USGS personnel.
REMARKS.--Due to unknown causes, the water level dropped about 7 ft between September 23 and October 2, 2005, and then rose over 23 ft between October 2 and November 23, 2005. After leveling off by January 1, 2006, there is an unexplainable 9 ft shift in water level. Extremes are reported for the periods of record before and after this resulting water-level shift. The period September 23 (1300) through December 31, 2005, was deemed questionable record and therefore disregarded. Satellite water-level telemeter at station.
EXTREMES FOR PERIOD OF RECORD.--Highest water level prior to shift, 18.70 ft below land-surface datum, Dec. 25, 2003; lowest water level prior to shift, 26.10 ft below land-surface datum, Sept. 4, 1991. Highest water level recorded since shift, 9.31 ft below land-surface datum, Jan. 26, 2006; lowest water level recorded since shift, 24.80 ft below land-surface datum, Sept. 7, 2012.
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> Rating Information
This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2007-10-01  2021-09-23








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Summary of all available data for this site
Instantaneous-data availability statement


Depth to water level, feet below land surface

Most recent instantaneous value: 17.78 09-23-2021   22:30 EST
Graph of  Depth to water level, feet below land surface

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