USGS Water-Year Summary 2019
323527117050003 018S002W22E005S, Otay Trolley Cluster Well near Otay, CA
California Coastal Basin aquifers
LOCATION - Lat 32°35'27.62", long 117°05'00.51" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NW 1/4 sec.22, T.18 S., R.2 W., San Diego County, CA, Hydrologic Unit 18070304,
WELL CHARACTERISTICS - Depth 560 ft. Upper casing diameter 1.94 in; top of first opening 540 ft, bottom of last opening 560 ft.
DATUM - Land-surface datum is 23.63 ft above North American Vertical Datum of 1988. Measuring point: Top of concrete vault (above LSD), 0.60 ft above land-surface datum, Mar. 15, 2008 to present; Top of 2 inch PVC casing, black mark on southwest side (below LSD), 0.31 ft below land-surface datum, Mar. 15, 2008 to present.
PERIOD OF RECORD - Water years 2008 to current year.
GAGE - Electronic data logger and pressure sensor.
PERIOD OF DAILY RECORD - August 2008 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest daily maximum water level recorded, 10.53 ft NAVD 88, Mar. 6, 2017; lowest daily minimum water level recorded, -30.02 ft NAVD 88, Aug. 15, 2018.