USGS Water-Year Summary 2024
314144110104702 D-20-21 14BCC2 [BOQSUD]
Basin and Range basin-fill aquifers
LOCATION - Lat 31°41'44.12", long 110°10'49.90" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NW 1/4 sec.14, T.20 S., R.21 E., Cochise County, AZ, Hydrologic Unit 15050202,
REVISIONS HISTORY -
Revision Statement for Vertical Datum Update
Site Name: 314144110104702 - D-20-21 14BCC2 [BOQSUD]
Date Revision Applied: 3/6/2025
Effective Date of New Vertical Datum Value: 11/18/2023
Previous Vertical Datum Value: 3877.48' above NAVD88
New Vertical Datum Value: 3878.05' above NAVD88
Reason for Update: This revision is made to align with updated geodetic standards as set forth by National Geodetic Survey, improving the accuracy and consistency of groundwater level data.
Affected Approved Data: No Approved data were impacted by this change
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 178.5 ft. Upper casing diameter 2 in; top of first opening 163.5 ft, bottom of last opening 173.5 ft.
DATUM - Land-surface datum is 3,878.05 ft above North American Vertical Datum of 1988. Measuring point: TOP OF 2" PVC PIPE (CASING) INSIDE OF 6" PROTECTIVE PVC CASING, 2.2 ft above land-surface datum, Jun. 5, 2002 to present; TOP OF 2" PVC PIPE (CASING) INSIDE OF 6" PROTECTIVE PVC CASING, 3879.6 ft above land-surface datum, Jun. 5, 2002 to present.