USGS Water-Year Summary 2024
323528117031404 018S002W23G005S, Otay River Cluster near Otay, CA
California Coastal Basin aquifers
LOCATION - Lat 32°35'28.45", long 117°03'14.01" referenced to North American Datum of 1983, San Diego County, CA, Hydrologic Unit 18070304,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 240 ft. Upper casing diameter 1.94 in; top of first opening 220 ft, bottom of last opening 240 ft.
DATUM - Land-surface datum is 71 ft above North American Vertical Datum of 1988. Measuring point: Top of 2 inch PVC casing, black mark on north side (below LSD), 0.27 ft below land-surface datum, Dec. 13, 2008 to present; Top of concrete vault (above LSD), 0.5 ft above land-surface datum, Sep. 17, 2009 to May. 6, 2020. Prior to September 19, 2023, Land-surface datum is 70.85 feet above the North American Vertical Datum of 1988.
PERIOD OF RECORD - Water year 2009 to current year.
GAGE - Electronic data logger and pressure sensor.
PERIOD OF DAILY RECORD - September 2009 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest daily maximum water level recorded, 53.26 ft NAVD 88, Feb. 26, 2024; lowest daily minimum water level recorded, 45.47 ft NAVD 88, Oct. 25-26, 29-30, 2014.