USGS Water-Year Summary 2021
340130117054904 002S002W04L005S, Dunlap Acres Cluster Well at Yucaipa, CA
California Coastal Basin aquifers
LOCATION - Lat 34°01'29.92", long 117°05'49.53" referenced to North American Datum of 1983, San Bernardino County, CA, Hydrologic Unit 18070203, south of Avenue E, and between 14th and 15th Streets, in Yucaipa.
WELL CHARACTERISTICS - Depth 445.5 ft. Upper casing diameter 1.94 in; top of first opening 440 ft, bottom of last opening 460 ft.
DATUM - Land-surface datum is 2,069.97 ft above North American Vertical Datum of 1988. Measuring point: Top of concrete vault (above LSD), 0.50 ft above land-surface datum, May 31, 2004 to present; Top of 2 inch PVC casing, black mark on east side (below LSD), 0.83 ft below land-surface datum, May 31, 2004 to present.
PERIOD OF RECORD - Water year 2004 to current year.
GAGE - Electronic data logger and pressure sensor.
PERIOD OF DAILY RECORD - December 2007 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 181.99 ft below land surface, May 27, 2005; lowest water level recorded, 357.50 ft below land surface, March 31, 2015.