USGS Water-Year Summary 2024
09328910 SAN RAFAEL RIVER AT MOUTH NEAR GREEN RIVER, UT
LOCATION - Lat 38°45'27.94", long 110°08'36.70" referenced to North American Datum of 1983, Emery County, UT, Hydrologic Unit 14060009,
DRAINAGE AREA - 3,123 mi². 2,420 mi². From USGS StreamStats National Application.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Jul 16, 2015 to present.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 4,002.38 ft above NAVD of 1988, from a Level 2 GNSS survey conducted by the USGS on August 31, 2023.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,100 ft³/s, Oct 19, 2015, gage height, 13.31 ft, Jun 21, 2023 (not associated with maximum discharge); minimum daily discharge, no flow at some times during some years.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water temperature and specific conductance sensors Dec 8, 2015 to Nov 14, 2016.
EXTREMES FOR PERIOD OF RECORD - WATER TEMPERATURE
Maximum recorded, 37.0 deg C, Aug 3, 2016; minimum recorded, -0.2 deg C, Dec 13 2016, and Dec 17, 2016.
SPECIFIC CONDUCTANCE
Maximum recorded; 5,420 uS/cm, Jul 2, 2016; minimum recorded, 385 uS/cm, Jul 2, 2016.