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Tap water quality report

PFAS in South Carolina

Of the 164 water suppliers tested for PFAS in South Carolina, 66 detected PFOA or PFOS (40.2%).

40.2%
of suppliers detected PFOA or PFOS
164
suppliers tested

What is PFAS?

PFAS — “forever chemicals” — are synthetic compounds that accumulate in the body and are linked to cancer, liver damage and immune effects. In 2024 the EPA set enforceable limits of 4 parts per trillion each for PFOA and PFOS. These are the only nationwide PFAS measurements, from the EPA’s UCMR-5 program.

Water suppliers

PFAS value per supplier, 2023–2025. EPA limit — 4 ppt (0.004 µg/L) for PFOA and PFOS, set in 2024. Suppliers that detected PFOA or PFOS are highlighted and listed first. “Not detected” means the contaminant was measured but not found.
SupplierCityPopulationPFAS (ug/L)
Winnsboro Town of (2010001) Winnsboro 10,391 0.0328 µg/L
Midcounty Water Dist 2 (sc2020004) Winnsboro 3,500 0.0201 µg/L
Draytonville Water Dist (sc1120003) Gaffney 5,456 0.0194 µg/L
Grassy Pond Water Co Inc (sc1120002) Gaffney 9,895 0.0190 µg/L
Gaffney Bpw (sc1110001) Gaffney 24,290 0.0180 µg/L
Goucher Wd (1120004) Pacolet 5,323 0.0170 µg/L
Grassy Pond Water Corporation Gaffney 1,303 0.0160 µg/L
Batesburg Leesville Dpw (sc3210002) Batesburg 6,814 0.0150 µg/L
Blacksburg Town of (sc1110002) Blacksburg 4,496 0.0130 µg/L
Gsw&Sa (sc2620004) Conway 252,840 0.0115 µg/L
Newberry City of (3610001) Newberry 9,947 0.0113 µg/L
Conway Rural (sc2620001) Conway 12,740 0.0109 µg/L
N Myrtle Beach City of (sc2610011) North Myrtle Beach 43,883 0.0100 µg/L
Saluda Cpw (sc4110001) Saluda 3,390 0.0099 µg/L
Georgetown City of (sc2210001) Georgetown 9,092 0.0097 µg/L
Saluda Co W&S Authority (4120001) Saluda 4,535 0.0097 µg/L
Gcwsd Waccamaw Neck (sc2220010) Pawleys Island 41,300 0.0095 µg/L
Lugoff Elgin Water Auth (sc2820001) Lugoff 25,783 0.0093 µg/L
Mccormick Co W&Sa (sc3520002) Mccormick 8,500 0.0088 µg/L
Laurens County W&S Comm (sc3020001) Laurens 44,866 0.0087 µg/L
Columbia City of (sc4010001) Columbia 354,068 0.0086 µg/L
Conway City of (sc2610008) Conway 27,005 0.0085 µg/L
St John'S Water (sc1020002) Johns Island (Sta.) 22,592 0.0085 µg/L
Mt Pleasant Water Works (1010002) Mount Pleasant 91,500 0.0084 µg/L
Ware Shoals Town of (sc2410003) Ware Shoals 3,174 0.0084 µg/L
Summerville Cpw (sc1810003) Summerville 81,750 0.0081 µg/L
Dcwa Knightsville (sc1820001) Summerville 40,141 0.0081 µg/L
Newberry Co W&Sa (sc3620002) Newberry 11,157 0.0081 µg/L
Clinton City of (sc3010002) Clinton 8,938 0.0081 µg/L
Folly Beach City of (1010005) Folly Beach 5,086 0.0081 µg/L
Isle of Palms W/S Comm (sc1010004) Isle of Palms 9,530 0.0080 µg/L
Moncks Corner City of (sc0810001) Moncks Corner 8,956 0.0080 µg/L
West Columbia City of (sc3210004) West Columbia 34,028 0.0079 µg/L
Kiawah Island Utility (sc1010008) Johns Island (Sta.) 9,550 0.0079 µg/L
Greenwood Cpw (2410001) Greenwood 52,022 0.0076 µg/L
Amicks Ferry Wtr System (sc3250077) Chapin 3,937 0.0076 µg/L
Seabrook Island Town of (1010009) Seabrook 5,939 0.0075 µg/L
Fort Jackson (sc4010501) Fort Jackson 31,000 0.0073 µg/L
Bcwsa Sangaree W/D (0820002) Moncks Corner 95,345 0.0071 µg/L
Bcwsa East Cooper (sc0820009) Moncks Corner 12,933 0.0071 µg/L
Florence City of (sc2110001) Florence 79,745 0.0067 µg/L
Dcwa Calomet Valley (1850009) Summerville 275 0.0067 µg/L
Charleston Water System (sc1010001) Charleston 327,422 0.0065 µg/L
Cayce City of (sc3210003) Cayce 17,460 0.0063 µg/L
Joint Municipal Wsc (sc3220003) Lexington 47,838 0.0062 µg/L
Shaw Afb (sc4310501) Shaw Afb 10,000 0.0062 µg/L
Union City of (sc4410001) Union 13,076 0.0061 µg/L
Lexington Town of (3210001) Lexington 24,284 0.0057 µg/L
Bjw&Sa (sc0720003) — 164,829 0.0056 µg/L
Dcws Ashley Phosphate (sc1820008) North Charleston 26,536 0.0055 µg/L
Bgwc i-20 (sc3250012) West Columbia 7,146 0.0055 µg/L
Fripp Island Psd (sc0720002) Fripp Island 3,536 0.0054 µg/L
Myrtle Beach City of (sc2610001) Myrtle Beach 49,375 0.0053 µg/L
Cheraw Town of (sc1310001) Cheraw 6,325 0.0053 µg/L
Hilton Head Psd 1 (0720006) Hilton Head Island 25,558 0.0052 µg/L
Camden City of (sc2810001) Camden 19,076 0.0052 µg/L
Meansville Riley W/D (sc4420001) Union 7,368 0.0052 µg/L
Ocean Lakes Ltd (sc2660048) Myrtle Beach 10,727 0.0050 µg/L
Daniel Morgan Water District (1120001) Gaffney 5,746 0.0050 µg/L
Goose Creek City of (sc0810004) Goose Creek 43,744 0.0049 µg/L
Starr-Iva W/D (sc0420005) Starr 11,125 0.0049 µg/L
Breezy Hill W/D (sc0220006) Graniteville 21,197 0.0048 µg/L
Woodruff Roebuck W/D (sc4220007) Woodruff 32,038 0.0047 µg/L
Chester Metropolitan District (1220002) Fort Lawn 15,668 0.0047 µg/L
Orangeburg Dpu (sc3810001) Orangeburg 47,463 0.0042 µg/L
Lancaster City of (sc2910001) Lancaster 14,074 0.0040 µg/L
Greenville Water (sc2310001) Greenville 426,057 Not detected
Spartanburg Water System (sc4210001) Spartanburg 166,364 Not detected
Rock Hill City of (sc4610002) Rock Hill 89,850 Not detected
Sjwd Middle Tyger Wtp (sc4220006) Lyman 89,531 Not detected
Lancaster County W&Sd (sc2920001) Lancaster 79,107 Not detected
Greer Cpw (sc2310005) Greer 54,024 Not detected
Sumter City of (sc4310001) Sumter 53,070 Not detected
Darlington County W&Sa (sc1620001) Darlington 52,288 Not detected
Aiken City of (sc0210001) Aiken 51,533 Not detected
Inman Campobello W/D (4220002) Inman 41,007 Not detected
Blue Ridge Water Co Inc (sc2320003) Greer 40,006 Not detected
Seneca City of (sc3710002) Seneca 39,772 Not detected
Electric City Utilities (sc0410012) Anderson 38,204 Not detected
Easley Combined Util (sc3910002) Easley 36,098 Not detected
Powdersville Water District (sc0420002) Easley 34,960 Not detected
York County East Wd (sc4620002) York 30,225 Not detected
Edgefield Co W&Sa (1920001) North Augusta 29,200 Not detected
North Augusta City of (sc0210003) North Augusta 26,125 Not detected
Chesterfield Co Rural Water (sc1320003) Chesterfield 25,691 Not detected
Cassatt Wtr Kershaw-Lee Co Rwa Cassatt 25,485 Not detected
Fort Mill Town of (sc4610003) Fort Mill 25,000 Not detected
Hammond W/D (sc0420007) Belton 21,193 Not detected
South Island Psd (sc0720001) Hilton Head Island 18,299 Not detected
York County West Wd (sc4620003) York 18,273 Not detected
Lcf Water District (sc4220010) Chesnee 18,152 Not detected
Trico Water Company (sc1720001) Dillon 17,963 Not detected
Clemson City of (sc3910004) Clemson 17,896 Not detected
West Anderson W/D (0420006) West Anderson 17,430 Not detected
Sandy Springs Water Co Inc (sc0420003) La France 17,311 Not detected
Bucksport Water Company (sc2620003) Conway 17,123 Not detected
Marco Rural Water Co (sc3320001) Marion 17,120 Not detected
Pioneer Rural Water Dist (sc3720001) Westminster 16,929 Not detected
Walhalla City of (sc3710004) Walhalla 16,010 Not detected
Six Mile W/D (sc3920002) Six Mile 14,845 Not detected