USGS Water-Year Summary 2020
323528117031402 018S002W23G003S, 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, located at Mace Street Equestrian Staging Area for Otay Valley Regional Park. Vault is at the beginning of the trailhead, in dirt area, between outside parking area and bathrooms.
- June 15, 2018 water level of -20.92 ft, below LSD, was deleted due to incorrect procedures in obtaining the water level. Change was made on 11/15/2018 by rmesmer and spepin.
WELL CHARACTERISTICS - Depth 970 ft. Upper casing diameter 1.94 in; top of first opening 950 ft, bottom of last opening 970 ft.
DATUM - Land-surface datum is 70.85 ft above North American Vertical Datum of 1988. Measuring point: EVEN LEVEL WITH TOP OF VAULT, 0.50 ft above land-surface datum, Dec. 13, 2008 to present; BLACK MARK ON TOP OF PVC CASING, 0.50 ft below land-surface datum, Mar. 1, 2013 to present.
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, 92.73 ft NAVD 88, Apr. 11, 2020; lowest daily minimum water level recorded, 84.76 ft NAVD 88, Dec. 1, 2009.