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Water-Year Summary for Site 11152000

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2017: 2017-10-01 to 2018-09-30

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USGS Water-Year Summary 2017
11152000 Arroyo Seco near Soledad, CA
LOCATION - Lat 36°16'50", long 121°19'18" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.16, T.19 S., R.6 E., Monterey County, CA, Hydrologic Unit 18060005, on right bank, under county road bridge, 1.5 mi downstream from Vaquero Creek, and 10 mi south of Soledad.
DRAINAGE AREA - 244 mi².
PERIOD OF RECORD - November 1901 to current year. Records for water year 1902 incomplete; yearly estimate published in WSP 1315-B.
REVISED RECORDS - WSP 881: 1902-09 (yearly summary only). WSP 1565: 1916-19, 1920-21 (instantaneous maximum discharge), 1922, 1926-27, 1928-30 (instantaneous maximum discharge), 1932, 1934, 1936 (instantaneous maximum discharge). WSP 1715: Drainage area.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 339.20 ft above NGVD of 1929. Prior to June 16, 1929, nonrecording gage, and June 16, 1929, to Dec. 2, 1941, water-stage recorder at site 1 mi upstream at different datum. Dec. 3, 1941, to Sept. 30, 1959, water-stage recorder at datum 2.00 ft higher. Jan. 30 to Mar. 26, 1969, nonrecording gage at bridge at same datum.
REMARKS - No regulation or large diversion upstream from station. Low flows affected by upstream gravel mining and irrigation during summer months as well as beaver activity throughout the reach. See schematic diagram of Salinas River Basin available from the California Water Science Center.
• Water Year 2014: Records poor
• Water Year 2015: Records fair
• Water Year 2016: Records fair
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 28,300 ft³/s, Apr. 3, 1958, gage height, 16.40 ft, datum then in use, from rating curve extended above 12,000 ft³/s, on basis of slope-area measurement at gage height 16.30 ft, maximum gage height, 16.44 ft, Mar. 10, 1995; no flow at times during several years.