USGS Water-Year Summary 2024
430649121305201 28.00S/10.00E-27DBD01
Pacific Northwest volcanic-rock aquifers
Basalt
LOCATION - Lat 43°06'48.5", long 121°30'51.5" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 SE 1/4 sec.27, T.2800 S., R.1000 E., Klamath County, OR, Hydrologic Unit 18010201, 0.1 mile from Jack Creek. The well is located 4.3 miles northwest of the Silver Lake Hwy on Forest Service Rd. 83 within the Chemult Ranger District of the Winema National Forest.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 407 ft. Upper casing diameter 10 in; top of first opening 300 ft, bottom of last opening 407 ft. Well unused.
DATUM - Land-surface datum is 4,889 ft above North American Vertical Datum of 1988. Measuring point: Transfer MP created for migration, 0 ft above land-surface datum, Sep. 12, 1991 to Oct. 26, 2000; Lip of cap, 0.4 ft above land-surface datum, Oct. 25, 2000 to present.
PERIOD OF RECORD - October 2001 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level, 371.77 ft below land-surface datum Oct. 11, 2001; lowest water level, 397.81 ft below land-surface datum Sept. 27-29, 2023.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - BAROMETRIC PRESSURE: July 2016 to current year.
INSTRUMENTATION - BAROMETRIC PRESSURE: Collection, computation, and publication of barometric pressure data do not necessarily conform to standards used by the National Weather Service. Records published in this report are for general scientific use.
EXTREMES FOR PERIOD OF RECORD - BAROMETRIC PRESSURE: Maximum, 652 mmHg Oct. 23, 2017; minimum, 616 mmHg Nov. 27, 2019.