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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
10131000 CHALK CREEK AT COALVILLE, UT
LOCATION - Lat 40°55'14", long 111°24'03" referenced to North American Datum of 1927, in NW 1/4 NE 1/4 SE 1/4 sec.08, T.2 N., R.5 E., Summit County, UT, Hydrologic Unit 16020101, on left bank 100 ft downstream from bridge on U.S. Highway 189 in Coalville and 0.3 mi upstream from mouth.
DRAINAGE AREA - 250 mi².
REVISIONS HISTORY - WSP 1564: 1929. WDR UT-77-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - November 1904, March to November 1905, April 1927 to current year.
GAGE - Water-stage recorder and concrete control. Datum of gage is 5,561.43 ft. above NAVD of 1988 via differential levels from NGS BM 5607 RESET, (PID LO0256) on October 30, 2020. Prior to February 13, 1931, nonrecording gage at site 100 ft upstream at different datum. February 13, 1931 to October 15, 1941, water-stage recorder at site 300 ft upstream at different datum. October 16, 1941 to September 30, 1987 at current datum.
REMARKS - Flow slightly affected by Chalk Creek Reservoir, capacity, 1,600 acre-ft. Records are good except for estimated daily discharge values, which are poor.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,790 ft³/s, May 22, 1993, gage height, 6.89 ft; maximum gage height, 8.26 ft, Jun. 1, 1983, present datum; minimum discharge, less than 1.0 ft³/s for several days in 1934.
