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Water-Year Summary for Site 421145088194802

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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
72019 Water level, depth LSD(Max.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
421145088194802 17-ALG-D
Sand and gravel aquifers (glaciated regions)
Quaternary System
LOCATION - Lat 42°11'45", long 88°19'48" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 NW 1/4 sec.20, T.43 N., R.8 E., McHenry County, IL, Hydrologic Unit 07120006, about 1 mile north of Lake in the Hills, in Lake in the Hills Fen Park, 15 feet east of Jefferson Street, and 20 feet south of trail going east. Owner: McHenry County.
REVISIONS HISTORY - Revisions: Land-surface datum was updated to 879.95 ft NAVD88 on May 30, 2023, as determined by a GNSS Level II survey. Land-surface datum was previously published as 880.03 ft NAVD88 (furnished). Discrete water-level measurements prior to May 30, 2023, are referenced to the original datum.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 187.8 ft. Upper casing diameter 2 in; top of first opening 182.8 ft, bottom of last opening 187 ft. Well-casing includes schedule 40 PVC pipe, 6 in. diameter borehole with bentonite seal, observation well.
DATUM - Land-surface datum is 879.95 ft above North American Vertical Datum of 1988. Measuring point: Top of PVC Casing; High point marked, 2.49 ft above land-surface datum, Oct. 17, 2008 to present.  
PERIOD OF RECORD -
GROUND-WATER LEVELS: February 2009 to current.
GROUND-WATER QUALITY:
  CHEMICAL: Water year 2011.
GAGE - Water level recorder and satellite telemeter.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 82.48 ft below land-surface datum, April 18, 2016; lowest, 119.43 ft below land-surface datum, July 13, 2012.