USGS Water-Year Summary for Site 02110550

Click to hide Water-Year Summary instructions and information

Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
Not all sites have reports available for every water year.

	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00045 Precipitation(Sum)
	00060 Discharge(Max.,Min.,Mean)
	00065 Gage height(Max.,Min.,Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)
	00300 Dissolved oxygen(Max.,Min.,Mean)
	00400 pH(Max.,Min.,Med.)
	63680 Turbidity, Form Neph(Min.,Mean,Max.)

Select a water year

Water year 2024: 2024-10-01 to 2025-09-30

Print this page

USGS Water-Year Summary 2024

02110550 WACCAMAW RIVER ABOVE CONWAY, SC

LOCATION - Lat 33°51'03", long 78°53'50" referenced to North American Datum of 1983, Horry County, SC, Hydrologic Unit 03040206, Gage structure and equipment located on north side of Old Reaves Ferry Road Bridge near Conway, SC.

DRAINAGE AREA - 1,250 mi².

SURFACE-WATER RECORDS

PERIOD OF RECORD - June 2013 to current year.

GAGE - Data collection platform and acoustic velocity meter. Datum of gage is 0.00 ft above NAVD of 1988 (from GNSS survey 2/26/2013).

REMARKS - Gage-height records are generally good to fair. Discharge records are generally fair 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-sc_nwisweb_data_inquiries@usgs.gov.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 45,200 ft³/s, Sep. 23, 2018, maximum gage height, 19.82, Sep. 23, 2018 as a result of Hurricane Florence; minimum daily mean discharge, -46.6 ft³/s, Nov. 20, 2013

CLIMATOLOGICAL RECORDS

PERIOD OF RECORD - June 2013 to current year.

INSTRUMENTATION - Tipping bucket raingage and data collection platform.

REMARKS - Precipitation data collected during freezing periods may not be accurately reflected in daily record.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water years 2013 to current year.

PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: June 2013 to September 2013. pH: June 2013 to September 2013. TEMPERATURE: June 2013 to September 2013. DISSOLVED OXYGEN: June 2013 to September 2013. TURBIDITY: June 2013 to September 2013.

INSTRUMENTATION - Water-quality multiprobe and data collection platform.

EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 292 microsiemens/cm, Nov. 23, 2013; minimum, 37 microsiemens/cm, Oct. 5, 2015.

pH: Maximum, 7.3 standard units, many days in Nov. 2013; minimum 4.9 standard units, on several days.

WATER TEMPERATURE: Maximum, 32.4°C, Aug. 10, 2022; minimum, 0.7°C, Jan. 7, 2018.

DISSOLVED OXYGEN: Maximum, 12.6 mg/L, Jan. 8,9, 2018; minimum, 0.8 mg/L, several days in 2013.

TURBIDITY: Maximum, 73.6 FNU, April 30, 2017; minimum, <1 FNU, many days.