USGS Water-Year Summary 2024
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.
REVISIONS HISTORY - 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.
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 1901 to current year. Records for water year 1902 incomplete; yearly estimate published in WSP 1315-B.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 345.23 ft above NAVD of 1988. 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.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 30,700 ft³/s, Jan. 09, 2023, gage height, 16.78 ft; no flow for many days in each year.