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USGS Water-Year Summary 2024
09486590 ARIVACA CREEK NEAR ARIVACA, AZ
LOCATION - Lat 31°34'20", long 111°19'54" referenced to North American Datum of 1927, Pima County, AZ, Hydrologic Unit 15050304, 1.5 mi west of Arivaca, on the Arivaca/Sasabe Hwy.
DRAINAGE AREA - 43 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Apr. 30, 2002, to current year.
GAGE - Water-stage recorder and data collection platform. Elevation of gage is 3,570 ft. above sea level, from topographic map. U.S. Fish and Wildlife Service has taken measurements 1.5 mi upstream since 1991. U.S. Geological Survey operated a gage 2.5 mi downstream (09486600) from 1967 to 1972. U.S. Geological Survey operated a gage 1.5 mi upstream (09486580) from 1996 to 2002.
REMARKS - 10/01/2013-09/30/2014: Records good except for discharges above 10 cfs which are poor. No known regulation except for a few small stock ponds.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Dec. 24, 1965, reached a stage of 13.32 ft from a profile past gage (4 mi downstream) (discharge 15,900 ft³/s, by slope- area measurement of peak flow); flood resulted from storm runoff and failure of two earth dams, which were storing an estimated 2,000 acre ft.
EXTREMES FOR PERIOD OF RECORD - At site 2.5 mi downstream (09486600), maximum discharge 3,550 ft³/s Dec. 20, 1967 (gage height 7.18 ft from highwater mark in gage well), from rating curve extended above 260 ft³/s on basis of slope-area measurement at gage height 13.32 ft.
