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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.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
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USGS Water-Year Summary 2024
09486055 RILLITO CREEK AT LA CHOLLA BOULEVARD, NEAR TUCSON, AZ
LOCATION - Lat 32°18'12", long 111°00'41" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 NW 1/4 sec.15, T.13 S., R.13 E., Pima County, AZ, Hydrologic Unit 15050301, on right bank, 200 ft upstream from bridge on La Cholla Boulevard, 1.8 mi downstream from former gage, Rillito Creek near Tucson, 3.0 mi upstream from mouth, and 5.8 mi north of Tucson City Hall.
DRAINAGE AREA - 922 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1990 to Sept. 1995 (published mean daily discharges over 200 ft³/s), Oct. 1995 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 2,260 ft above sea level, from topographic map.
REMARKS - Records fair except for estimated discharge which is poor. Several small diversions above station for irrigation and for municipal and domestic supply, mostly by pumping from ground water.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 39,000 ft³/s July 31, 2006, gage-height 11.36 ft; no flow for most of each year.
