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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.
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USGS Water-Year Summary 2024
09481740 SANTA CRUZ RIVER AT TUBAC, AZ
LOCATION - Lat 31°36'46", long 111°02'27" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 SW 1/4 sec.08, T.20 S., R.13 E., Santa Cruz County, AZ, Hydrologic Unit 15050301, in Spanish land grant of San Ignacio de la Canoa, on right bank at the Bridge Street bridge, 1/4 mi east of Tubac, 3.1 mi downstream from Tumacacori, and 19 mi south of Continental.
DRAINAGE AREA - 1,210 mi². of which 397 mi² is in Mexico.
REVISIONS HISTORY - WDR AZ-98-1: 1997(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1995 to current year.
GAGE - Water-stage recorder. Elevation of gage is 3,180 ft above sea level, from topographic map.
REMARKS - Records good except for estimated discharge which is rated poor. Base flow is regulated by sewage-treatment plant at Rio Rico. No natural flow for most of each year.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 10,600 ft³/s, Oct. 23, 2000, Aug. 2, 2007; maximum gage height, 26.56 ft, Oct. 23, 2000; minimum daily, no flow May 19 to June 20, 2002; June 4 to July 11, 2003, and July 14 to July 19, 2003.
WATER-QUALITY RECORDS
PERIOD OF RECORD - October 1995 to November 1997 and July 2009 to September 2010 (discontinued).
PERIOD OF DAILY RECORD - WATER TEMPERATURES: October 1996 to May 1997.
