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Water-Year Summary for Site 09484600

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Available Parameters
00060 Discharge(Mean)  

Water year 2021: 2021-10-01 to 2022-09-30
 

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USGS Water-Year Summary 2021
09484600 PANTANO WASH NEAR VAIL, AZ
LOCATION - Lat 32°02'09", long 110°40'37" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.14, T.16 S., R.16 E., Pima County, AZ, Hydrologic Unit 15050302, on right bank 60 ft upstream from dam, 2.2 mi southeast of Vail, and 20 mi southeast of Tucson City Hall.
DRAINAGE AREA - 457 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jan. 1959 to Sept. 1974, water years 1975-89 (annual maximums only), Oct. 1989 to current year.
GAGE - Water-stage recorder and concrete weir. Elevation of gage is 3,205 ft above sea level, from topographic map. Jan. 1959 to Sept. 1974 (water-stage recorder) and Oct. 1974 to Sept. 1989 (crest-stage gage) at same site and datum.
REMARKS - Records good except for estimated discharges and those greater than 100 ft³/s, which are poor. No known diversion above station.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge since at least 1930, about 38,000 ft³/s, Aug. 11, 1958, gage height, about 24 ft, from floodmark, from slope-area measurement.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 12,000 ft³/s Oct. 1 or 2, 1983, gage height, 15.25 ft, from inside highwater mark, from rating curve extended above 2,000 ft³/s on basis of slope-area measurements at gage heights 10.9 and 24 ft; no flow June 26 to July 13, Aug. 7, 1971 (result of work on infiltration gallery), June 27 to July 13, 1973 (result of ponding during construction work on dam), May 28 to June 12, July 12, 13, 17, and 18, 1974, and June 17-20, 2006.