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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
373930118491602 373930118491602 003S029E30E002M
Basin and Range basin-fill aquifers
LOCATION - Lat 37°39'30", long 118°49'16" referenced to North American Datum of 1927, in sec.30, T.3 S., R.29 E., Mono County, CA, Hydrologic Unit 18090102, 
REVISIONS HISTORY - Site elevation resurveyed resulting in a change in discrete water level above vertical datum between 4/13/2021 - 6/29/2022.
GROUNDWATER RECORDS
DATUM - Land-surface datum is 7,084.77 ft above North American Vertical Datum of 1988. Measuring point: T.O.C, 2.8 ft above land-surface datum, Aug. 11, 1983 to Aug. 17, 1983; T.O.C, 1.6 ft above land-surface datum, Aug. 17, 1983 to Sep. 28, 1983; Red mark top of steel 4.5" casing north side, 0.7 ft above land-surface datum, Sep. 28, 1983 to present. Prior to April 13, 2021, Land-surface datum is 7,078.99 ft above National Geodetic Vertical Datum of 1929.
