USGS Water-Year Summary for Site 10010000

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	Available Parameters
	62614 Elevation, lake/res, NGVD29(Mean)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

10010000 GREAT SALT LAKE AT STATE PARK SALTAIR BOAT HARBOR, UT

LOCATION - Lat 40°43'53", long 112°12'46" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 NW 1/4 sec.17, T.1 S., R.3 W., Salt Lake County, UT, Hydrologic Unit 16020310, at State Park Saltair Beach Boat Harbor on southeast shore of lake, 17.1 mi west of Salt Lake City. (Gage temporarily located 0.4 mi to the southeast, from Apr. 1984 to May 30, 1985, because of problems associated with highwater, then relocated 0.1 mi to the northeast from May 30, 1985 to August 9, 1989 because of highway construction. Gage relocated to boat harbor marina on August 9, 1989).

REVISIONS HISTORY - WSP 1314: 1877. WDR-UT-74-1: 1967-73. WDR-UT-83-1: 1981-82. WDR-UT-95-1: 1984-94. WDR-UT-2001-1: 1984-2000.

SURFACE-WATER RECORDS

PERIOD OF RECORD - September 1875 to December 1899, October 1902 to current year. Records for October 1902 to September 1912 and diagram showing fluctuations of lake from 1851-1950, published in WSP 1314.

GAGE - Water-stage recorder at Boat Harbor since October 1938. Datum at gage since September 15, 1970 is 4,186.80 ft above NGVD of 1929. October 1938 to April 15, 1967, at datum 4,186.9 ft and April 15, 1967 to September 15, 1970, at datum 4,186.85 ft. Prior to October 1938, staff gages at sites and datums as follows: September 1875 to October 1877 at Black Rock at 4,208.4 ft above NGVD of 1929, November 1877 to November 1879 at Farmington Bay at 4,206.9 ft above NGVD of 1929, November 1879 to April 1881 near Black Rock at 4,203.1 ft above NGVD of 1929, April 1881 to December 1899 at Garfield Landing at 4,198.5 ft above NGVD OF 1929, October 1902 to July 1903, at Midlake on Lucin cutoff of Southern Pacific Railroad, 30 mi west of Ogden, at 4,197.9 ft above NGVD of 1929, and July 1903 to October 1938 at Saltair at 4,196.9 ft above NGVD of 1929. Datums since September 15, 1970, from levels run to USGS/National Geodetic Survey Benchmarks C-174 (1970) and E-174 (1970).

REMARKS - Records are considered good except for estimates, which are fair to poor depending on duration. Water-surface elevations reported at the USGS Great Salt Lake gages are considered to be accurate to within +/- 0.10 foot of the datum in use. Of the five benchmarks surveyed by the USGS as part of the larger 1999 NGS GPS survey, only three were considered by the NGS to be accurate to within 0.10 foot (FMK 77 1966, Saltair, and WES DES PUMPS). Wind effects may cause substantial changes in hourly lake elevations. Prior to Oct. 1989, lake elevations were reported for the 1st and 15th of each month and were based on trend in lake elevation. Samples for specific gravity and temperature were collected from water surface near the gage.

EXTREMES FOR PERIOD OF RECORD - Maximum elevation observed, 4,211.60 ft, Jun 3, 1986, Apr 1, 15, 1987. Minimum mean daily elevation, 4,188.50 ft, November 7, 2022; Maximum elevation prior to Jun 3, 1986, 4,211.6 ft in 1873, computed from traditional data by G. K. Gilbert and E. C. LaRue.