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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.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
09486800 ALTAR WASH NEAR THREE POINTS, AZ
LOCATION - Lat 31°50'20", long 111°24'13" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 NE 1/4 sec.27, T.18 S., R.9 E., Pima County, AZ, Hydrologic Unit 15050304, on right bank attached to downstream side of bridge on State Highway 286, 0.3 mi below mouth of Chiltipines Wash and 18 mi south of Three Points.
DRAINAGE AREA - 463 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 1966 to Sept. 1975, May 1992 to current year.
GAGE - Water-stage recorder and crest-stage gages. Datum of gage is 2,975.15 ft above sea level.
REMARKS - Records good for those days with no discharge and poor for all others.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 22,000 ft³/s Sept. 4, 1970, gage height 13.85 ft at site 2 mi upstream. Minimum discharge, no flow for many days each year.
