USGS Water-Year Summary for Site 03238772

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	Available Parameters
	00010 Temperature, water(Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Mean)
	00300 Dissolved oxygen(Mean)
	00400 pH(Med.)
	63680 Turbidity, Form Neph(Med.)

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

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USGS Water-Year Summary 2023

03238772 FOUR MILE CREEK AT POPLAR RIDGE ROAD NEAR ALEXANDRIA, KY

LOCATION - Lat 38°59'12", long 84°21'55" referenced to North American Datum of 1983, Campbell County, KY, Hydrologic Unit 05090201, at bridge on Poplar Ridge Road, 2.5 miles north of Alexandria, 3.0 miles upstream from Tug Creek, and 6.7 miles upstream from the mouth.

DRAINAGE AREA - 3.10 mi².

REVISIONS HISTORY - The maximum discharge for the water year 2007 has been revised to 648 ft³/s, February 20, 2007, gage-height 7.36 feet.

SURFACE-WATER RECORDS

PERIOD OF RECORD - March 2001 to current year.

GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 535.243 feet above NGVD of 1929. Gage operated from May 1999 to March 2001 downstream 2.0 miles at different datum. Station number (03238780) Fourmile Creek @ Hwy 547 near Alexandria was a stage only site.

COOPERATION - Northern Kentucky Sanitation District No. 1.

REMARKS - 10/01/2015-11/14/2017: Records fair except for estimated daily discharges which are poor.

EXTREMES FOR PERIOD OF RECORD - Maximum Discharge, 1,550 ft³s, June 12, 2010, gage height, 7.65 ft.

WATER-QUALITY RECORDS

PERIOD OF RECORD - SPECIFIC CONDUCTANCE: April 2001 to September 2008. October 2011 to September 2012. October 2015 to October 2016. pH: April 2001 to September 2008. October 2011 to September 2012. October 2015 to October 2016. WATER TEMPERATURE: April 2001 to September 2008. October 2011 to September 2012. October 2015 to October 2016. DISSOLVED OXYGEN: April 2001 to September 2008. October 2011 to September 2012. October 2015 to October 2016. TURBIDITY: April 2001 to September 2008. October 2011 to September 2012. October 2015 to October 2016.

REMARKS - The sonde was subject to heavier than normal siltation after rain events. This was because of the steep gradient of the ditch just upstream from the bridge, and the shallow nature of the sonde pipe installation.

EXTREMES FOR PERIOD OF RECORD - SPECIFIC CONDUCTANCE: Maximum recorded, 3,590 microsiemens, January 29, 2005; minimum recorded, 82 microsiemens, April 21, 2002. pH: Maximum recorded, 9.3 units, April 25, 2008; minimum recorded, 6.1 units, July 13, 2016. WATER TEMPERATURES: Maximum recorded, 33.2°C, July 6, 2012; minimum recorded, -0.3°C, January 28, February 2-3, 2004, and February 13-15, 19-20, 2007. DISSOLVED OXYGEN: Maximum recorded, 22.4 mg/L, April 25, 2008; minimum recorded, 0.3 mg/L, July 18, 2012. TURBIDITY: Maximum recorded, >3,000 FNU, July 5, 2008, November 29-30, 2011, January 17, 23, 2012, November 18, 2015, January 10, and February 3, 21, 2016; minimum recorded, <2.0 FNU, January 21-23, 2003, December 9, 2003, August 5, 11-12, 16, 25-26, October 19, 2005, August 12, 15-18, 2006, many days during August and September 2008, many days during the 2012 water year, July 2-26, 2016, and August 23-27, 2016.