USGS Water-Year Summary 2020
323313117033903 019S002W02C009S, Tijuana River Valley Cluster Well near San Ysidro, CA
California Coastal Basin aquifers
LOCATION - Lat 32°33'13.12", long 117°03'41.77" referenced to North American Datum of 1983, San Diego County, CA, Hydrologic Unit 18070305,
WELL CHARACTERISTICS - Depth 965 ft. Upper casing diameter 2 in; top of first opening 945 ft, bottom of last opening 965 ft.
DATUM - Land-surface datum is 45.26 ft above North American Vertical Datum of 1988. Measuring point: Top of concrete vault (above LSD), 0.10 ft above land-surface datum, Jun. 15, 1995 to present; Top of 2 inch PVC casing, black mark on west side (below LSD), 0.54 ft below land-surface datum, May 24, 2010 to present.
PERIOD OF RECORD - Water years 1995-96, 2005 to current year.
GAGE - Electronic data logger and pressure sensor.
PERIOD OF DAILY RECORD - May 2007 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest daily maximum water level recorded, 19.69 ft NAVD 88, Mar. 12, 2019; lowest daily minimum water level recorded, -2.05 ft NAVD 88, Nov 25, 2014.