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Water-Year Summary for Site 05548500

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Available Parameters
00065 Gage height(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
05548500 FOX RIVER AT JOHNSBURG, IL
LOCATION - Lat 42°22'34.77", long 88°14'12.26" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 sec.18, T.45 N., R.9 E., McHenry County, IL, Hydrologic Unit 07120006, on upstream side of bridge on Chapel Hill Road in Johnsburg, 5.5 mi upstream from Stratton Lock and Dam (previously known as McHenry Dam), and at mile 103.0.
DRAINAGE AREA - 1,205 mi².
REVISIONS HISTORY - WDR IL-75-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
  DISCHARGE: December 1997 to August 1999.
  STAGE: October 1939 to current.
SURFACE-WATER QUALITY
  SEDIMENT: December 1997 to May 1999.
  MISCELLANEOUS: Sediment concentration and particle size, water years 1998-99.
GAGE - Water-stage recorder and satellite telemeter. Datum of gage is 732.77 ft above NAVD of 1988. Dec. 14, 1939, to Sept. 30, 1971, at datum 2.16 ft higher. Oct. 1, 1939, to Dec. 14, 1939, nonrecording gage at same site at datum 2.16 ft higher.
REMARKS - Stage regulated by Stratton Lock and Dam, 5.5 mi downstream from station (previously known as McHenry Dam). Suspended-sediment samples were collected twice weekly with more frequent samples collected during high runoff periods.
EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 4,780 ft³/s, June 17, 1999, gage height, 5.91 ft; maximum gage height, 7.55 ft, present datum, April 6, 1960, discharge unknown; minimum discharge, -1,300 ft³/s, June 25, 1998, due to regulation and wind effect; minimum gage height, 1.43 ft, present datum, Mar. 9 1967.
SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily, 420 mg/L, May 17, 1999; minimum daily, 2 mg/L, Jan. 20 to Feb. 3, 1998.
SUSPENDED-SEDIMENT LOAD: Maximum daily, 1,680 tons, May 17, 1999; minimum daily, 5.1 tons, Jan. 25 to Jan. 27, 1998.