USGS Water-Year Summary 2024
315909110540601 (D-17-14)03baa
Basin and Range basin-fill aquifers
LOCATION - Lat 31°59'09", long 110°54'06" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 NW 1/4 sec.03, T.17 S., R.14 E., Pima County, AZ, Hydrologic Unit 15050301, in Sahuarita, about 10 mi south of Tucson, 6 mi east of Old Nogales Highway. Owner: U.S. Geological Survey.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 965 ft. Upper casing diameter 16. in; top of first opening 950 ft, bottom of last opening 965 ft.
DATUM - Land-surface datum is 2,735 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF STEEL PLATE, 0. ft above land-surface datum, Aug. 28, 1980, to present.
PERIOD OF RECORD - June 1980 to current year.
GAGE - Water-level and compaction recorders.
EXTREMES FOR PERIOD OF RECORD - Highest water level recorded, 170.6 ft below land-surface datum, Mar. 15, 2013; lowest recorded, 226.3 ft below land-surface datum, Sept. 8, 2000, Oct. 10, 11, 2001.