USGS Water-Year Summary 2024
582359134352103 CD04006618CBCA3019 85177., AK
Alaska unconsolidated-deposit aquifers
LOCATION - Lat 58°23'59", long 134°35'21" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 SW 1/4 sec.18, T.40 S., R.66 E., City & Borough of Juneau, AK, Hydrologic Unit 19010301, (Juneau B-2 NW quad), Well is located in steel gage house on Riverbend Road, 1/4 mile off of the Mendenhall Loop Road, Juneau.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 40 ft. Upper casing diameter 6 in; top of first opening 30 ft, bottom of last opening 40 ft.
DATUM - Land-surface datum is 50.53 ft above National Geodetic Vertical Datum of 1929. Measuring point: Marked 'X' on wooden shelf, .77 ft above land-surface datum, Oct. 1, 1996 to present.
PERIOD OF RECORD - November 1983 to December 2009. April 14 2016 current year.
GAGE - Intermittent measurements with chalked steel tape by USGS, November 1983 to current year; continuous strip-chart recorder, November 1983 to August 1984; Digital recorder, August 1984 to April 1997; submersible pressure transducer/electric data logger, August 1997 to September 1998; electronic data logger and encoder, September 1998 to April 2005; submersible pressure transducer/electric data logger, April 2005 to December 2009. April 2016 to current year. New KPSI installed 1/4/2018.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 4.89 ft below land-surface datum, September 25, 1990; lowest measured, 13.56 ft below land-surface datum, March 25 2018.