USGS Water-Year Summary 2024
323313117033905 019S002W02C011S, 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, in NE 1/4 NW 1/4 sec.02, T.19 S., R.2 W., San Diego County, CA, Hydrologic Unit 18070305,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 280 ft. Upper casing diameter 2 in; top of first opening 260 ft, bottom of last opening 280 ft.
DATUM - Land-surface datum is 45.71 ft above North American Vertical Datum of 1988. Measuring point: Top of 2 inch PVC casing, black mark on southwest side (below LSD), 0.12 ft below land-surface datum, Jun. 15, 1995 to present; Top of concrete vault (above LSD), 0.1 ft above land-surface datum, Jun. 15, 1995 to May. 6, 2020. Prior to December 22, 2022, Land-surface datum is 45.26 ft above North American Vertical Datum of 1988.
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, 36.24 ft NAVD 88, Jan. 16, 2023; lowest daily minimum water level recorded, 24.46 ft NAVD 88, Oct. 27, 2007.