USGS Water-Year Summary 2020
08358300 RIO GRANDE CONVEYANCE CHANNEL AT SAN MARCIAL, NM
LOCATION - Lat 33°41'15.6", long 106°59'33.4" referenced to North American Datum of 1983, Socorro County, NM, Hydrologic Unit 13020203, in Pedro Armendaris Grant No. 34, on right bank at San Marcial, 0.4 mi northwest of Atchison, Topeka and Santa Fe Railway Co. bridge over floodway channel, 1.0 mi southwest of former site of San Marcial, 3.5 mi downstream from railroad bridge near Tiffany siding, and 51 mi downstream from heading at San Acacia.
PERIOD OF RECORD - October 1958 to September 1959, October 1964 to current year. Prior to October 1964, monthly discharge only published with record for "Rio Grande at San Marcial" (station 08358500).
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 4,454.00 ft above NGVD of 1929 (levels by Bureau of Reclamation). Prior to Apr. 29, 1958, at datum 4.19 ft higher.
PERIOD OF RECORD - March 1954 to July 1996, December 2001 to current year.
PERIOD OF DAILY RECORD - SUSPENDED-SEDIMENT DISCHARGE: October 1955 to September 1994.