USGS Water-Year Summary for Site 10171000

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	00060 Discharge(Mean)

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Water year 2024: 2023-10-01 to 2024-09-30

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USGS Water-Year Summary 2024

10171000 JORDAN RIVER AT SALT LAKE CITY, UT

LOCATION - Lat 40°44'01", long 111°55'21" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 NW 1/4 sec.14, T.1 S., R.1 W., Salt Lake County, UT, Hydrologic Unit 16020204, on right bank at 1700 South Street and about 1000 West in Salt Lake City. The gage is located 4,000 ft downstream from diversion structure at head of Surplus Canal and 1.7 mi downstream from Mill Creek.

DRAINAGE AREA - 3,438 mi² of which 255 mi² probably is noncontributing. includes 255 mi² closed basin in Cedar Valley.

REVISIONS HISTORY -

WDR UT-88-1: 1987 (combined flow). Prior to Jan 15, 2021 the datum of the gage was 4,220.08 ft above NGVD of 1929, from topographic map.

Revisions: Peak gage height for September 4, 2023, was revised on April 16, 2024, based on changes to the peak qualifier.

SURFACE-WATER RECORDS

PERIOD OF RECORD - December 1942 to current year.

GAGE - Water-stage recorder and acoustic velocity meter. Datum of gage is 4,222.64 ft. above NAVD of 1988 from a Level II GNSS survey conducted on January 15, 2021. Prior to July 1, 1976 at site 3,200 ft upstream at different datum.

REMARKS - Records fair except for estimated days which are poor. Flow has been completely regulated since reconstruction in May 1952 of Surplus Canal diversion dam 4,000 ft upstream. Flow affected by regulation at Utah Lake, Deer Creek Reservoir, other storage and regulation, and importation of water from other basins. Many diversions are present above station for irrigation, industrial, and municipal water supplies. For records of Surplus Canal see station 10170500. For records of combined flow, see station 10170490.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 449 ft³/s, Aug 20, 1986, gage height, 4.41 ft, maximum gage height, 5.75 ft, Jun 26, 1952; no flow, May 10, 24, 1952, May 21, 22, 1962, Sep 21, 1963, May 14 to Jun 1, 1964, Sep 6, 7, 1965, and Jun 21, 2018 (entire flow diverted to Surplus Canal). Maximum daily combined discharge (Jordan River and Surplus Canal), 4,510 ft³/s, Jun 1, 1984; minimum daily, 89 ft³/s, Jun 23, 1961.

WATER-QUALITY RECORDS

PERIOD OF RECORD - January 1974 to September 1994, October 1998 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE- October 1974 to September 1978, October 1980 to September 1981, October 1998 to September 2002. WATER TEMPERATURE- April 1975 to September 1978, October 1980 to September 1981, October 1998 to September 2002. EXTREMES FOR PERIOD OF DAILY RECORD: SPECIFIC CONDUCTANCE- Maximum, 3,240 microsiemens, Mar. 18, 2002; minimum, 536 microsiemens, Jun. 25, 1978. WATER TEMPERATURE- Maximum, 28.0°C, Aug. 29, 30, 1975; minimum, 0.5°C, Jan. 2, 3, 1976.

REMARKS - Pesticide data available at http://nwis.waterdata.usgs.gov/ut/nwis/qwdata