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Water-Year Summary for Site 02101726

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Max.,Mean,Min.)  
00065 Gage height(Mean,Max.,Min.)  
00095 Specific cond at 25C(Mean,Max.,Min.)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Med.,Min.,Max.)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
02101726 ROCKY RIVER AT US HIGHWAY 64 NEAR SILER CITY, NC
LOCATION - Lat 35°44'06", long 79°25'24" referenced to North American Datum of 1927, Chatham County, NC, Hydrologic Unit 03030003, on U.S. Highway 64, 1.6 mi east of Siler City.
DRAINAGE AREA - 68.7 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 2009 to current year.
GAGE - Water-stage recorder. Datum of gage is 482.9 ft above NAVD88 NAD83(2011) Geoid 18. Satellite telemetry at streamgage. 
REMARKS - Gage-height records are generally good. Discharge records are generally good except for estimated discharges, which are poor. Additional details on the accuracy of the records can be obtained by contacting the USGS South Atlantic Water Science Center at gs-w-nc_nwisweb_data_inquiries@usgs.gov.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 14,000 ft³/s, September 17, 2018; Maximum gage height 24.90 ft, September 17, 2018, as a result of Hurricane Florence.  Minimum daily mean discharge: 0.13 ft³/s, August 21, 2017.
WATER-QUALITY RECORDS
EXTREMES FOR PERIOD OF DAILY RECORD -
SPECIFIC CONDUCTANCE: Maximum recorded, 178 microsiemens, January 23, 2018; minimum recorded, 22 microsiemens, April 21, 2014.
pH: Maximum recorded, 8.3 standard units, April 7, 2021; minimum recorded, 5.8 standard units, June 20, 21, 22, 24, 25, 2010.
WATER TEMPERATURE: Maximum recorded, 32.2°C, July 15, 17, 2019; minimum recorded, 1.3°C, February 14, 2014.
DISSOLVED OXYGEN: Maximum recorded, 14.1 mg/L, March 3, 2009; minimum recorded, 0.1, August 14, 2010.
DISSOLVED OXYGEN, PERCENT SATURATION: Maximum recorded, 119%, June 19, 2009, October 1, 2010; minimum recorded, 1%, August 14, 2010.