USGS Water-Year Summary 2024
451746106301101 06S43E19DDBA02
Alluvial aquifers
Quaternary Alluvium
LOCATION - Lat 45°17'46", long 106°30'11" referenced to North American Datum of 1927, in NW 1/4 SE 1/4 SE 1/4 sec.19, T.6 S., R.43 E., Rosebud County, MT, Hydrologic Unit 10090101,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 67 ft. Upper casing diameter 4 in; top of first opening 16 ft, bottom of last opening 61 ft. Drilled in October 1986.
DATUM - Land-surface datum is 3,170 ft above National Geodetic Vertical Datum of 1929. Measuring point: top of casing, 1.40 ft above land-surface datum, Apr. 19, 1989 to Jan. 31, 2018; Notch in top of casing without cap, 1.20 ft above land-surface datum, Jan. 31, 2018 to present.
PERIOD OF RECORD - October 1986 to May 1987; April 1989 to present.
GAGE - Intermittent measurement October 1986 to May 1987. Routine measurement April 1989 to present. Pressure transducer and data logger set to record every hour October 1995 to present.
PERIOD OF DAILY RECORD - October 1995 to present.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 6.24 ft below land-surface datum, June 2, 2011; lowest, 12.10 ft below land-surface datum, October 9-20, 2006.