USGS Water-Year Summary for Site 05548280

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	Available Parameters
	00045 Precipitation(Sum)
	00060 Discharge(Mean)
	00065 Gage height(Mean)

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

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USGS Water-Year Summary 2023

05548280 NIPPERSINK CREEK NEAR SPRING GROVE, IL

LOCATION - Lat 42°26'37.43", long 88°14'50.73" referenced to North American Datum of 1983, in NE 1/4 NW 1/4 sec.25, T.46 N., R.8 E., McHenry County, IL, Hydrologic Unit 07120006, on left bank at downstream side of bridge on Winn Road, 0.6 mi west of Spring Grove, and at mile 7.4.

DRAINAGE AREA - 192 mi².

REVISIONS HISTORY - WSP 2115: 1969-70(M). WDR IL-75-1: Drainage area. WDR IL-85-2: 1966-67(M), 1971.

SURFACE-WATER RECORDS

PERIOD OF RECORD -
SURFACE-WATER DISCHARGE AND STAGE
  DISCHARGE: August 1966 to current.
  STAGE: Water years 1994 to current.
SURFACE-WATER QUALITY
  CHEMICAL: Water years 1976-91.
  SEDIMENT: Dec. 1997 to May 1999.
  MISCELLANEOUS: Sediment concentration and particle size, water years 1998-99.
PRECIPITATION: October 1999 to February 2012 and June 2013 to current.

GAGE - Water stage recorder, satellite telemeter, unheated tipping-bucket rain gage, and crest-stage gage. Datum of gage is 745.94 ft. above NAVD of 1988.

REMARKS - Collection, computation, and publication of precipitation data do not necessarily conform to standards used by the National Weather Service. Precipitation data could be subject to error for days with freezing and/or thawing of precipitation, which are identified as estimated (e). Accuracy of records is discussed in the annual Station Analysis archived at the USGS IL Water Science Center.

EXTREMES OUTSIDE PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Flood in April 1960 reached a stage of 13.7 ft, from information by local resident, and flood in July 1938 reached a stage of about 4 to 6 ft higher than that in April 1960.

EXTREMES FOR PERIOD OF RECORD - SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 2,910 ft³/s, Sept. 26, 1986, gage height, 14.26 ft; minimum discharge, 6.6 ft³/s, Aug. 7, 1988.
SUSPENDED-SEDIMENT CONCENTRATION: Maximum daily, 244 mg/L, May 17, 1999; minimum daily, 8 mg/L, Nov. 24, 1998.
SUSPENDED-SEDIMENT LOAD: Maximum daily, 247 tons, May 17, 1999; minimum daily, 1.9 tons, Nov. 24, 1998.
PRECIPITATION: Maximum daily total, 3.50 in., June 19, 2009.