USGS Water-Year Summary 2023
324318117083103 017S003W01K003S, Balboa Park Cluster Well near San Diego, CA
California Coastal Basin aquifers
LOCATION - Lat 32°43'18.61", long 117°08'31.6" referenced to North American Datum of 1983, San Diego County, CA, Hydrologic Unit 18070304,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 580 ft. Upper casing diameter 1.94 in; top of first opening 560 ft, bottom of last opening 580 ft.
DATUM - Land-surface datum is 99.16 ft above North American Vertical Datum of 1988. Measuring point: Top of 2 inch PVC casing, black mark on north side (below LSD), 0.85 ft below land-surface datum, Feb. 7, 2008 to present; Top of concrete vault (above LSD), 0.7 ft above land-surface datum, Feb. 7, 2008 to May. 6, 2020.
PERIOD OF RECORD - Water year 2008 to Oct 31st 2021
GAGE - Electronic data logger and pressure sensor.
PERIOD OF DAILY RECORD - Water year 2008 to Oct 31st 2021
EXTREMES FOR PERIOD OF RECORD - Highest daily maximum water level recorded, 22.45 ft NAVD 88, Jun. 21, 2009, Aug. 10, 12-13, Oct. 17, 2010; lowest daily minimum water level recorded, 20.73 ft NAVD 88, Oct 21, 2021.