USGS Water-Year Summary 2019
02131000 PEE DEE RIVER AT PEE DEE, SC
LOCATION - Lat 34°12'15", long 79°32'55" referenced to North American Datum of 1927, Marion County, SC, Hydrologic Unit 03040201, at upstream side of upstream bridge on U.S. Highway 76 at Pee Dee, 0.2 mi downstream from Seaboard Coast Line Railroad bridge, 8.2 mi downstream from Black Creek, and at mile 100.2
DRAINAGE AREA - 8,830 mi².
PERIOD OF RECORD - October 1938 to current year. Monthly discharge only for some periods, published in WSP 1303. Prior to October 1947, published as near Mars Bluff. Gage-height records collected at practically same site since 1923 are contained in reports of National Weather Service.
GAGE - Data collection platform. Datum of gage is 24.73 ft above NGVD of 1929. Prior to Oct. 1, 1947, at site 1.6 mi downstream at datum 1.27 ft lower.
EXTREMES FOR PERIOD OF RECORD - The maximum peak flow for period of record is from a rating curve extended above 76,000 cfs on basis of discharge measurement of 221,000 cfs at Cheraw. The maximum peak stage was at datum then in use.