USGS Water-Year Summary for Site 02110550

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	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.)

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Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022

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 -

For water year 2014: Records fair.
For water year 2015: Records fair.
For water year 2016: Records fair.
For water year 2017: Records fair.
For water year 2018: Records fair.
For water year 2019: Records fair.
For water year 2020: Records good to poor.

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.

REMARKS -

For water year 2014: Specific Conductance records excellent except for Dec. 4 to Jan. 16, June 3 to Aug. 6, which are good; pH records good except for Mar. 29 to Apr. 30, June 3 to July 2, which are fair; Temperature records excellent; Dissolved Oxygen records excellent; Turbidity records excellent except for Mar. 5-28, June 3 to Aug. 6, which are good, May 1 to June 2, which are fair and Oct. 31 to Feb. 17, which are poor.

For water year 2015: Specific Conductance records excellent except for Oct. 2-31, which are good; pH records good; Temperature records excellent; Dissolved Oxygen records excellent except for May 30 to June 5, which are good, June 25 to Sep. 25 are poor; Turbidity records good except for Oct. 2 to Oct. 31, May 30 to June 5 and Sep. 26 to Sep. 30, which are fair, Dec. 2 to Jan. 6, Apr. 15 to May 14, May 27 to May 29 and July 15 to July 23, which are poor.

For water year 2016: Specific Conductance records excellent; pH records good; Temperature records excellent; Dissolved Oxygen records excellent; Turbidity records excellent except for Jul. 27 - Aug. 10, which are good, Apr. 27 - Jun. 22, which are fair, and Sept. 7 - 13 and Sept.27-30, which are poor.

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, 32.1°C, June 24, 2015; 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.