USGS Water-Year Summary 2019
340130117054905 002S002W04L006S, 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 246.1 ft. Upper casing diameter 1.94 in; top of first opening 230 ft, bottom of last opening 250 ft.
DATUM - Land-surface datum is 2,069.97 ft above North American Vertical Datum of 1988. Measuring point: Top of 2 inch PVC casing, black mark on southeast side (below LSD), 0.81 ft below land-surface datum, May 31, 2004 to present; Top of concrete vault (above LSD), 0.50 ft above 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, 86.61 ft below land surface, July. 28, 2010; lowest water level recorded, 205.03 ft below land surface, Dec. 9 and 10, 2017.