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USGS Water-Year Summary 2024
323932117050801 017S002W28R004S, Sweetwater Desalination Plant Cluster Wells Near Chula Vista, CA
California Coastal Basin aquifers
LOCATION - Lat 32°39'32.53", long 117°05'08.08" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 SW 1/4 sec.28, T.17 S., R.2 W., San Diego County, CA, Hydrologic Unit 18070304,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 1,990 ft. Upper casing diameter 2.90 in; top of first opening 1,810 ft, bottom of last opening 1,850 ft.
DATUM - Land-surface datum is 17.91 ft above North American Vertical Datum of 1988. Measuring point: EVEN LEVEL WITH TOP OF VAULT, 1.8 ft above land-surface datum, Aug. 12, 2009 to present; BLACK MARK ON TOP OF PVC CASING. MP corrected and ended 07-24-2019, see remarks section, 1.12 ft above land-surface datum, Mar. 1, 2013 to Jul. 25, 2019; BLACK MARK ON TOP OF PVC FEMALE THREADED COUPLER, 1.14 ft above land-surface datum, Jul. 24, 2019 to present. Prior to 11/23/2022, the Land-Surface datum was 17.40 ft above North American Vertical Datum of 1988. New geodetic survey resulted in the gage datum and uncertainty values updated.
PERIOD OF RECORD - Water year 2010 to current year.
GAGE - Electronic data logger and pressure sensor.
REMARKS - Records rated good. Sudden water-level changes may be attributed to nearby anthropogenic effects such as pumping and sampling. Cluster Wells consist of six continuous record groundwater wells, located in a common ground-level vault.
PERIOD OF DAILY RECORD - December 2009 to current year.
EXTREMES FOR PERIOD OF RECORD - Highest daily maximum water level recorded, 94.81 ft NAVD 88, Sep. 29, 2017; lowest daily minimum water level recorded, 72.88 ft NAVD 88, Jan. 27, 2017.
