USGS Water-Year Summary 2023
413139086341401 LA PORTE 10 (LP 10)
Sand and gravel aquifers (glaciated regions)
Pleistocene Series
LOCATION - Lat 41°31'40", long 86°34'10" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 NE 1/4 sec.31, T.36 N., R.1 W., LaPorte County, IN, Hydrologic Unit 07120001, 200 ft north of the manager's residence at the Mixsawbah Fish Hatchery and 2.6 mi southeast of Stillwell.
REVISIONS HISTORY - 5/3/2017 - Revised discrete water level measurement on 6/30/2016 at 0908 EST from 7.59 feet below land surface to 7.60 feet below land surface.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 104 ft. Upper casing diameter 6 in; top of first opening 102 ft, bottom of last opening 104 ft.
DATUM - Land-surface datum is 690 ft above National Geodetic Vertical Datum of 1929. Measuring point: three file marks at top of casing, 3.48 ft above land-surface datum, Feb. 29, 2016 to present.
PERIOD OF RECORD - August 1980 to October 2003, June 2016 to current.
GAGE - Water-level recorder.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 2.19 ft below land-surface datum, February 21, 2018; lowest, 9.78 ft below land-surface datum, Nov 16-24, 1999.