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Water-Year Summary for Site USGS 11140585

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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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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2023
11140585 Santa Maria River at Suey Crossing, near Santa Maria, CA
LOCATION - Lat 34°58'06", long 120°24'11" referenced to North American Datum of 1927, Santa Barbara County, CA, Hydrologic Unit 18060008, unsurveyed, on upstream wingwall of left bank concrete bridge abutment on Bull Canyon Road, below the mouth of Suey Creek, and 0.9 mi east of Santa Maria.
DRAINAGE AREA - 1,636 mi².
PERIOD OF RECORD - April 1999 to September 1999, October 2006 to current year. SEDIMENT DATA: Water years 1999-2000.
GAGE - Water-stage recorder. Elevation of gage is 250 ft above NGVD of 1929, from topographic map. April to September 1999 at elevation 10 ft lower.
REMARKS - Flow regulated by Twitchell Reservoir. Water is released from this reservoir to recharge groundwater in the lower basin.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 24,700 ft³/s, Dec. 19, 2010, gage height, 14.77 ft; maximum gage height, 15.36 ft, Feb. 17, 2017; no flow for many days in each year.
PERIOD OF RECORD - SEDIMENT DATA: Water years 1999-2000.