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Water-Year Summary for Site 263845081260703

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
62610 Elevation, GW, NGVD29(Max.)  
62611 Elevation, GW, NAVD88(Max.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
263845081260703 HE 851. USGS Observation Well near Sears, FL.
Surficial aquifer system
Nonartesian Sand Aquifer
LOCATION - Lat 26°38'45", long 81°26'07" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 sec.21, T.44 S., R.29 E., Hendry County, FL, Hydrologic Unit 03090205, southeast corner of intersection of State Road 29 and Sears Road, and 3.6 mi west of Sears.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 10 ft. Upper casing diameter 4 in; top of first opening 5 ft, bottom of last opening 10 ft. Open-hole well.
DATUM - Land-surface datum is 29.6 ft above National Geodetic Vertical Datum of 1929. Measuring point: Top of shelf, 30.45 ft above National Geodetic Vertical Datum of 1929, Aug. 1, 1977 to Jul. 1, 1978; Top of recorder shelf, 32.3 ft above National Geodetic Vertical Datum of 1929, Aug. 1, 1978 to Oct. 1, 1989; Top of casing, 32.38 ft above National Geodetic Vertical Datum of 1929, Oct. 1, 1989 to Oct. 1, 1991; Top of casing, 32.26 ft above National Geodetic Vertical Datum of 1929, Oct. 1, 1991 to present.
PERIOD OF RECORD - October 1977 to October 1983 (daily), October 1983 to September 1995 (monthly), February 2001 to current year.
GAGE - InSitu Level TROLL 500 pressure transducer.
REMARKS - Records of water levels prior to October 1986 are in error. Corrected records, including records of water levels prior to October 1979, are available in the files of the U.S. Geological Survey.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 30.57 ft NGVD, Aug. 22, 2008 and Sept. 10, 2017; lowest measured, 22.81 ft NGVD, June 4, 1986.