USGS Water-Year Summary 2025

350359106335201 10N.04E.30.134A CESAR CHAVEZ SENTINEL WELL 1A

Rio Grande aquifer system
Santa Fe Group

LOCATION - Lat 35°03'59.44", long 106°33'51.83" referenced to North American Datum of 1983, in SW 1/4 SE 1/4 NW 1/4 sec.30, T.10 N., R.4 E., Bernalillo County, NM, Hydrologic Unit 13020203,

REVISIONS HISTORY -

The period of record from 2015-12-08 to 2016-11-14 was revised because the 2016 aquifer test discrete values were revised to correct a systemic MP correction error.  The new MP correction makes the new depth to water 1.00 ft deeper than previously. Prior to June 04, 2024 datums published for this site included: 5350.52 ft above NAVD88, 5350.33 ft above NAVD88. The measuring point height for MP-1 was updated from -0.80 feet to -0.78 feet based on a 2024 reevaluation of survey data collected in June 2016. Discrete and continuous water level data were published on NWIS Web using the previous datum and MP values.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 519 ft. Upper casing diameter 2.5 in; top of first opening 459 ft, bottom of last opening 509 ft.  

DATUM - Land-surface datum is 5,350.34 ft above North American Vertical Datum of 1988. Measuring point: NORTH SIDE OF CASING; INDICATED BY SCREW AND BLACK MARK AT TOP OF PVC IN STEEL VAULT BLS, 0.78 ft below land-surface datum, Nov. 20, 2014 to present; MP IS TOP OF GREY BENNETT PUMP CAP WHICH IS .3 FT HIGHER THAN TOC, 0.5 ft below land-surface datum, Jun. 1, 2015 to May 31, 2017; TOP OF SCREW SET IN TOP OF CASING, 0.77 ft below land-surface datum, Jun. 1, 2024 to present.  

PERIOD OF RECORD -

Periodic discrete and continuous data from February 6, 2015 to present.