USGS Water-Year Summary 2022
09530000 RESERVATION MAIN DRAIN NO. 4 NEAR YUMA, AZ
LOCATION - Lat 32°44'14", long 114°37'16" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 SE 1/4 sec.26, T.16 S., R.22 E., Imperial County, CA, Hydrologic Unit 15030107, on right bank, 350 ft. upstream from Picacho Road Bridge, 0.9 mi. north of Yuma Co. Courthouse, and 0.5 mi. NW of Saint Thomas Indian Mission. Yuma East 7.5' quadrangle.
PERIOD OF RECORD - January 1913 to April 1920, October 1921 to March 1925, January 1934 to current year (prior to 2005 monthly discharge only)(calender year discharge only 1934-36). Prior to 1955, published as California drainage canal.
GAGE - Acoustic Doppler Velocity Meter, Radar Stage Sensor.