USGS Water-Year Summary 2025
343952118240601 007N014W30K001S
LOCATION - Lat 34°39'52.54", long 118°24'06.89" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 sec.30, T.7 N., R.14 W., Los Angeles County, CA, Hydrologic Unit 18070102,
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 70 ft. Upper casing diameter 1.94 in; top of first opening 50 ft, bottom of last opening 70 ft.
DATUM - Land-surface datum is 3,273.9 ft above North American Vertical Datum of 1988. Measuring point: EVEN LEVEL WITH TOP OF 12-INCH MANHOLE, 0.0 ft above land-surface datum, Nov. 24, 2019 to present; BLACK MARK ON TOP OF PVC CASING, 0.39 ft below land-surface datum, Nov. 24, 2019 to present.
PERIOD OF RECORD - Continuous record, March 19, 2020 to current.
EXTREMES FOR PERIOD OF RECORD - Highest Water-Level recorded: 6.77 ft. below LSD, April 11, 2020. Lowest Water-Level recorded: 13.34 ft. below LSD, Sept. 21-22, 2020.