Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins

Water-Year Summary for Site 02110704

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(Min.,Max.,Mean)  
00060 Discharge(Max.,Mean,Min.)  
00065 Gage height(Max.,Min.,Mean)  
00065 Gage height(Max.,Min.,Mean) [Secondary]  
00095 Specific cond at 25C(Min.,Mean,Max.)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
63680 Turbidity, Form Neph(Mean,Min.,Max.) [YSI 6136]  
63680 Turbidity, Form Neph(Max.,Mean,Min.) [YSI EXO3]  
72137 Discharge,tide fltrd(Max.,Min.,Mean)  

Water year 2024: 2023-10-01 to 2024-09-30
 
Print this page
USGS Water-Year Summary 2024
02110704 WACCAMAW RIVER AT CONWAY MARINA AT CONWAY, SC
LOCATION - Lat 33°49'57.4", long 79°02'37.4" referenced to North American Datum of 1983, Horry County, SC, Hydrologic Unit 03040206, on bulkhead of State Highway 501 Business Bridge at Conway.
DRAINAGE AREA - 1,440 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1994 to current year.
GAGE - Data collection platform and Acoustic Velocity Meter. Datum of gage is 6.14 ft below NAVD of 1988. Prior to Oct. 5, 1999, at site 1,000 ft downstream, at same datum.
REMARKS - Gage-height records are generally good to fair. Discharge records are generally good to 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, 49,000 ft³/s, Sep. 25, 2018 as a result of Hurricane Florence, maximum gage height, 21.16 ft, Sep. 25, 2018 as a result of Hurricane Florence; minimum daily mean discharge, -321 ft³/s, Oct. 20, 1997.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1991 to current year.
PERIOD OF DAILY RECORD - 
SPECIFIC CONDUCTANCE: October 2006 to current year.
pH: October 2006 to current year.
TEMPERATURE: October 1991 to current year.
DISSOLVED OXYGEN: October 1990 to current year.
TURBIDITY: October 2006 to current year.
INSTRUMENTATION - Water-quality multiprobe and data collection platform.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 307 microsiemens/cm, Feb. 6, 2024; minimum, 39 microsiemens/cm, Mar. 2, 2021.

pH: Maximum, 7.6 standard units, many days in November and December 2008; minimum 4.8 standard units, Mar. 16, 17, 2012.

WATER TEMPERATURE: Maximum, 34.1°C, Jun. 24, 1996; minimum, 0.9°C, Jan. 08, 2018.

DISSOLVED OXYGEN: Maximum, 14.0 mg/L, on Jan. 6, 2001; minimum, 0.2 mg/L, many days in September 1998.

TURBIDITY (YSI6 Sep. 18, 2006 - March 10, 2021): Maximum, 170 FNU, June 23, 2008; minimum, 0.2 FNU, Nov. 6, 2019, Dec. 4, 12, 2019.

TURBIDITY (EXO March 10, 2021 - present): Maximum, 75.4 FNU, December 18, 2023; minimum, 1.5 FNU, Mar. 8, 2023.