USGS Water-Year Summary 2019
11274630 Del Puerto Creek near Patterson, CA
LOCATION - Lat 37°29'12", long 121°12'29" referenced to North American Datum of 1927, in SE 1/4 NW 1/4 sec.21, T.5 S., R.7 E., Stanislaus County, CA, Hydrologic Unit 18040002, on left bank, 1.0 mi upstream from California Aqueduct crossing, and 4.4 mi west of Patterson.
DRAINAGE AREA - 72.6 mi².
- WSP 1930: 1959-60 (instantaneous maximum discharge), Drainage area.
PERIOD OF RECORD - October 1958 to May 1965 (maximums only), June 1965 to current year.
GAGE - Water-stage recorder. Elevation of gage is 200 ft above NGVD of 1929, from topographic map. Prior to June 1965, crest-stage gage at site 1.0 mi downstream at different datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 5,270 ft³/s, Feb. 3, 1998, gage height, 14.92 ft, from rating curve extended above 3,400 ft³/s, on basis of computation of peak flow through culvert; no flow for several months in most years.