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- 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.
USGS Water-Year Summary 2024
021556524 LAKE BLALOCK NEAR COWPENS, SC
LOCATION - Lat 35°03'29", long 81°52'05" referenced to North American Datum of 1927, Spartanburg County, SC, Hydrologic Unit 03050105, approximately 100 ft upstream of Lake Blalock Dam, and 3.5 mi northwest of Cowpens, and in the Lake Blalock Public Landing Area.
DRAINAGE AREA - 273 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1998 to current year.
GAGE - Data Collection Platform. Datum of gage is NGVD of 1929 (from Spartanburg Water Systems staff gage). Prior to October 2005, midnight readings were published.
REMARKS - Water-surface elevation records are generally good. 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 elevation, 714.64 ft, Feb. 7, 2020; minimum elevation, 676.44 ft, Nov. 16-18, 2004.
