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Water-Year Summary for Site 11120000

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
11120000 Atascadero Creek near Goleta, CA
LOCATION - Lat 34°25'29", long 119°48'39" referenced to North American Datum of 1927, Santa Barbara County, CA, Hydrologic Unit 18060013, in La Goleta Grant, on downstream side of center pier of South Paterson Avenue bridge, 100 feet downstream from Maria Ygnacio Creek, 1.3 miles upstream from mouth, and 1.3 miles southeast of Goleta.
DRAINAGE AREA - 18.9 mi².
REVISIONS HISTORY - WSP 1635: 1943-45 (instantaneous maximum discharge), 1947 (instantaneous maximum discharge). WSP 1928: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1941 to current year. Prior to October 1947, published as "Alascadero Creek near Goleta." WATER TEMPERATURE: Water year 1982. SEDIMENT CONCENTRATION: Water year 1982. SUSPENDED-SEDIMENT DISCHARGE: Water year 1982.
GAGE - Water-stage recorder and broad-crested weir. Datum of gage is 8.59 ft above NGVD of 1929, Santa Barbara County benchmark. Prior to Dec. 14, 1967, at site 275 ft downstream, datum 4.00 ft higher. Dec. 14, 1967, to Sept. 30, 1976, at datum 4.00 ft higher; Oct. 1, 1976, to Sept. 30, 1978, at datum 2.00 ft higher, both at present site.
REMARKS - No regulation upstream from station. Small diversions for irrigation upstream from station. Some low-flow results from return irrigation wastewater.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 10,200 ft³/s, Mar. 10, 1995, gage height, 12.45 ft, present datum, from rating curve extended above 6,900 ft³/s, maximum gage height, 17.3 ft, from floodmark, Dec. 3, 1974, present datum; no flow for many days in most years.