USGS Water-Year Summary 2021
09429000 PALO VERDE CANAL NEAR BLYTHE, CA
LOCATION - Lat 33°43'55", long 114°30'40" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 sec.19, T.5 S., R.24 E., Riverside County, CA, Hydrologic Unit 15030104, at canal intake structure on west side of Palo Verde diversion dam, 10 mi northeast of Blythe and 44 mi downstream from Headgate Rock Dam. The cadastral is using the San Bernardino Meridian.
- WSP 1213: 1946-48.
PERIOD OF RECORD - Jan. 1922 to Dec. 1923, Jan. 1925 to current year (prior to Oct. 1950, monthly discharge only).
GAGE - The gage consist of three sensors. All sensors are interfaced to the DCP located in forbay structure via SDI-12 hardwire. Float operated encoders are used to measure and record water surface elevation at the forebay and tailrace of the diversion structure. Data from these sensors is used to calculate and record head difference. Outside reference for forebay and tailrace are enamel staff plates located both outside and inside the stilling wells. Gate opening is recorded by a gate encoder mounted to extreme right gate. Data is transmitted to the data logger where it is converted to vertical gate opening. Data is logged every 15 minutes. The gate structure has four, 4 ft high by 12 ft wide curvilinear radial gates, and all are kept at the same setting as standard operating procedure. Vertical gate movement is referenced by four staff gages with indices at 301.81 +/- 0.02 ft (levels of 1995 indicated +0.05 ft change to right gates). The gate opening log is available from PVID.
EXTREMES FOR PERIOD OF RECORD - Maximum daily discharge, 2,360 ft³/s July 30,1981; no flow at times.