USGS Water-Year Summary 2025
351357106323001 12N.04E.29.433 SANDIA SITE
Rio Grande aquifer system
Santa Fe Group
LOCATION - Lat 35°13'57", long 106°32'30" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 SE 1/4 sec.029, T.12 N., R.4 E., Sandoval County, NM, Hydrologic Unit 13020203,
REVISIONS HISTORY - Prior to August 23, 2024 the datum of the site was 5430.00 ft above NGVD29 (determined via topographic map) and updated to 5444.00 ft above NAVD88 (determined via Lidar) on September 15, 2017. Discrete water levels have previously been published on NWIS Web using old datum(s).
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 1,305 ft. Upper casing diameter 2.5 in; top of first opening 1,295 ft, bottom of last opening 1,300 ft.
DATUM - Land-surface datum is 5,444 ft above North American Vertical Datum of 1988. Measuring point: TOP OF PVC CASING, 1.54 ft above land-surface datum, Nov. 6, 2017 to present.
PERIOD OF RECORD - 1999 to current year
GAGE - Campbell CR10 data logger and differential pressure transducer
EXTREMES FOR PERIOD OF RECORD - Highest: 486.01 ft. below land surface datum on March 20, 1999; Lowest: 492.71 ft. below land surface datum on October 22, 2007