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Water-Year Summary for Site 480034105195401

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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.,Min.,Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
480034105195401 26N49E13ACAB01
Upper Cretaceous aquifers
Fox Hills-Hell Creek Aquifer
LOCATION - Lat 48°00'34", long 105°19'54" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 NE 1/4 sec.13, T.26 N., R.49 E., McCone County, MT, Hydrologic Unit 10060002, Owner: U.S. Geological Survey and Bureau of Land Management.
REVISIONS HISTORY - Revised figures of daily mean depth to water level for water years 2012-2015, superseding those published in the reports for 2012-2015, can be found at: http://nwis.waterdata.usgs.gov/nwis/inventory/?site_no=480034105195401
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 180 ft. Upper casing diameter 4 in; top of first opening 120 ft, bottom of last opening 180 ft. Drilled in August 1981.
DATUM - Land-surface datum is 2,040 ft above National Geodetic Vertical Datum of 1929. Measuring point: top of recorder shelter, 1.60 ft above land-surface datum, Apr. 14, 1998 to present. Reference point established May 11, 1999: top of steel rod near well casing, 0.15 ft below measuring point.
PERIOD OF RECORD - May 1982 to August 1992; April 1998 to current year.
GAGE - Routine measurement with steel tape from 1982 to 1992, with calibrated e-tape or steel tape from 1998 to current year. Digital water-level recorder set to record every 6 hours from April 1998 to August 1999. Set to record every 4 hours from August, 1999, to April 2012. Set to record every hour from April 2012 to current year.
PERIOD OF DAILY RECORD - April 1998 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest instantaneous water level, 40.67 ft below land-surface datum, July 26, 2011; lowest instantaneous water level, 44.13 ft below land-surface datum, November 20, 2008.