USGS Water-Year Summary 2024

11274500 Orestimba Creek near Newman, CA

LOCATION - Lat 37°18'56", long 121°07'27" referenced to North American Datum of 1927, in NE 1/4 NE 1/4 sec.19, T.7 S., R.8 E., Stanislaus County, CA, Hydrologic Unit 18040002, on right bank, 20 ft downstream from bridge at California Aqueduct Siphon, 3 mi downstream from Oso Creek, and 5.5 mi west of Newman.

DRAINAGE AREA - 134 mi².

REVISIONS HISTORY - WSP 1445: 1932 (instantaneous maximum discharge), 1938 (peaks above base), 1940-41 (instantaneous maximum discharge), 1945, 1951 (instantaneous maximum discharge). WSP 1930: Drainage area, WDR CA-95-3: 1986 (instantaneous maximum discharge).

SURFACE-WATER RECORDS

PERIOD OF RECORD - January 1932 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 198.74 ft above NAVD of 1988. Prior to Oct. 1, 1958, at site 1,080 ft downstream at datum 24.14 ft lower. Oct. 1, 1958, to Aug. 13, 1969, at site 960 ft downstream at datum 27.14 ft lower. Aug. 13, 1969, to Feb. 6, 1984, at site 240 ft upstream, present datum.

REMARKS - No storage or diversion upstream from station except for minor stock ponds.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 12,000 ft³/s, Mar. 10, 1995, gage height, 9.51 ft, from rating curve extended above 4,000 ft³/s, on basis of critical depth measurement; no flow for all or part of each year.

WATER-QUALITY RECORDS

PERIOD OF RECORD -

CONTINUOUS WATER-QUALITY DATA:
SPECIFIC CONDUCTANCE: Water years January 2020 to current year. (water years 2020-2023, daily).
WATER TEMPERATURE: Water years January 2019 to current year. (water years 2020-2023, daily).