PFAS in South Carolina drinking water
EPA's final UCMR 5 data covers 165 public water systems in South Carolina, serving about 4.6 million people. PFAS turned up in 91 of them (55%). 57 averaged above at least one EPA limit at a sampling point, affecting about 2.2 million people.
Highest PFOA and PFOS averages among systems serving 1,000 or more: Gaffney Bpw (1110001) (16.8 / 14.3 ppt), Grassy Pond Water CO (1120002) (12.7 / 15.6 ppt), Goucher WD (1120004) (11.9 / 14.5 ppt), Blacksburg Town of (1110002) (10.9 / 10.9 ppt) and Draytonville Water Dist (1120003) (10.2 / 11.6 ppt).
Every tested system in South Carolina
Largest first. PFOA and PFOS columns show the average at each system's worst sampling point; EPA's limit for each is 4 ppt. Filter by name:
| Water system | People | PFOA | PFOS | PFAS found | Result |
|---|---|---|---|---|---|
| Greenville Water (2310001) · Greenville | 426,057 | - | - | 0 | None found |
| Columbia City of (sc4010001) · Columbia | 354,068 | 5.8 | 7.6 | 7 | Above limit |
| Charleston Water System (sc1010001) · Charleston | 327,422 | 4.3 | 5.8 | 5 | Above limit |
| Gsw&sa (sc2620004) · Conway | 252,840 | 6.2 | 6.1 | 7 | Above limit |
| Spartanburg Water System (4210001) · Spartanburg | 166,364 | - | - | 0 | None found |
| Bjw&sa (0720003) · Okatie | 164,829 | 5.0 | 4.4 | 5 | Above limit |
| Bcwsa Sangaree W/d (0820002) · Moncks Corner | 95,345 | 5.8 | 6.3 | 5 | Above limit |
| Mt Pleasant Water Works (1010002) · Mount Pleasant | 91,500 | 3.6 | 6.6 | 6 | Above limit |
| Rock Hill City of (sc4610002) · Rock Hill | 89,850 | - | - | 2 | Below limits |
| Sjwd Middle Tyger Wtp (4220006) · Lyman | 89,531 | - | - | 0 | None found |
| Summerville Cpw (sc1810003) · Summerville | 81,750 | 5.7 | 6.7 | 6 | Above limit |
| Florence City of (sc2110001) · Florence | 79,745 | 3.7 | 5.6 | 5 | Above limit |
| Lancaster County W&sd (2920001) · Lancaster | 79,107 | - | - | 2 | Below limits |
| Greer Cpw (sc2310005) · Greer | 54,024 | - | - | 0 | None found |
| Sumter City of (sc4310001) · Sumter | 53,070 | - | - | 0 | None found |
| Darlington County W&sa (1620001) · Darlington | 52,288 | - | - | 0 | None found |
| Greenwood Cpw (2410001) · Greenwood | 52,022 | 4.8 | 7.3 | 6 | Above limit |
| Aiken City of (0210001) · Aiken | 51,533 | - | - | 2 | Below limits |
| Myrtle Beach City of (sc2610001) · Myrtle Beach | 49,375 | 1.3 | 2.5 | 7 | Sample at limit |
| Joint Municipal WSC (3220003) · Swansea | 47,838 | 2.1 | 5.6 | 5 | Above limit |
| Orangeburg Dpu (3810001) · Orangeburg | 47,463 | - | 1.1 | 4 | Sample at limit |
| Laurens County W&s Comm (sc3020001) · Laurens | 44,866 | 5.0 | 8.1 | 9 | Above limit |
| N Myrtle Beach City of (sc2610011) · N Myrtle Beach | 43,883 | 7.3 | 8.6 | 7 | Above limit |
| Goose Creek City of (0810004) · Goose Creek | 43,744 | 5.2 | 6.0 | 6 | Above limit |
| Gcwsd Waccamaw Neck (sc2220010) · Pawleys Island | 41,300 | 5.8 | 6.1 | 7 | Above limit |
| Inman Campobello W/d (4220002) · Inman | 41,007 | - | - | 0 | None found |
| Dcwa Knightsville (1820001) · Summerville | 40,141 | 5.8 | 7.2 | 7 | Above limit |
| Blue Ridge Water CO INC (sc2320003) · Greer | 40,006 | - | - | 0 | None found |
| Seneca City of (3710002) · Seneca | 39,772 | - | - | 0 | None found |
| Electric City Utilities (0410012) · Anderson | 38,204 | - | - | 1 | Below limits |
| Easley Combined Util (sc3910002) · Easley | 36,098 | - | - | 0 | None found |
| Powdersville Water District (sc0420002) · Powdersville | 34,960 | - | - | 1 | Below limits |
| West Columbia City of (3210004) · West Columbia | 34,028 | 5.4 | 7.4 | 6 | Above limit |
| Woodruff Roebuck W/d (4220007) · Woodruff | 32,038 | 1.2 | - | 4 | Sample at limit |
| Fort Jackson (4010501) · Fort Jackson | 31,000 | 6.2 | 6.8 | 7 | Above limit |
| York County East WD (4620002) · York | 30,225 | - | - | 2 | Below limits |
| Edgefield CO W&sa (1920001) · Edgefield | 29,200 | - | - | 0 | None found |
| Conway City of (sc2610008) · Conway | 27,005 | 8.2 | 8.8 | 7 | Above limit |
| Dcws Ashley Phosphate (1820008) · Summerville | 26,536 | 5.6 | 6.5 | 5 | Above limit |
| North Augusta City of (0210003) · North Augusta | 26,125 | - | - | 0 | None found |
| Lugoff Elgin Water Auth (2820001) · Lugoff | 25,783 | 6.5 | 6.9 | 5 | Above limit |
| Chesterfield CO Rural Water (sc1320003) · Chesterfield | 25,691 | - | - | 0 | None found |
| Hilton Head PSD 1 (0720006) · Hilton Head Island | 25,558 | 3.5 | 3.8 | 4 | Sample at limit |
| Cassatt Wtr Kershaw-lee CO Rwa · Cassatt | 25,485 | - | - | 0 | None found |
| Fort Mill Town of (sc4610003) · Fort Mill | 25,000 | - | - | 2 | Below limits |
| Gaffney Bpw (1110001) · Gaffney | 24,290 | 16.8 | 14.3 | 7 | Above limit |
| Lexington Town of (3210001) · Lexington | 24,284 | 3.3 | 5.5 | 5 | Above limit |
| St John's Water (sc1020002) · Johns Island | 22,592 | 4.9 | 7.2 | 5 | Above limit |
| Breezy Hill W/d (0220006) · Graniteville | 21,197 | 2.4 | - | 4 | Sample at limit |
| Hammond W/d (sc0420007) · Belton | 21,193 | - | - | 1 | Below limits |
| Camden City of (2810001) · Camden | 19,076 | 4.8 | 3.2 | 4 | Above limit |
| South Island PSD (sc0720001) · Hilton Head Island | 18,299 | - | - | 0 | None found |
| York County West WD · York | 18,273 | - | - | 2 | Below limits |
| Lcf Water District (sc4220010) · Chesnee | 18,152 | - | - | 0 | None found |
| Trico Water Company (sc1720001) · Dillon | 17,963 | - | - | 0 | None found |
| Clemson City of (sc3910004) · Clemson | 17,896 | - | - | 1 | Below limits |
| Cayce City of (3210003) · West Columbia | 17,460 | 5.3 | 6.0 | 6 | Above limit |
| West Anderson W/d (0420006) · Anderson | 17,430 | - | - | 1 | Below limits |
| Sandy Springs Water CO INC (sc0420003) · Sandy Springs | 17,311 | - | - | 1 | Below limits |
| Bucksport Water Company (sc2620003) · Conway | 17,123 | - | - | 0 | None found |
| Marco Rural Water CO (sc3320001) · Marion | 17,120 | - | - | 0 | None found |
| Pioneer Rural Water Dist (sc3720001) · Westminster | 16,929 | - | - | 0 | None found |
| Walhalla City of (sc3710004) · Walhalla | 16,010 | - | - | 0 | None found |
| Chester Metropolitan District (1220002) · Chester | 15,668 | 1.1 | 2.4 | 4 | Sample at limit |
| Six Mile W/d (sc3920002) · Six Mile | 14,845 | - | - | 0 | None found |
| Lancaster City of (sc2910001) · Lancaster | 14,074 | 1.0 | - | 4 | Sample at limit |
| Laurens Cpw (3010001) · Laurens | 13,902 | - | - | 3 | Below limits |
| Big Creek W/s District (0420009) · Belton | 13,647 | - | - | 1 | Below limits |
| Union City of (4410001) · Union | 13,076 | 4.1 | 3.8 | 6 | Above limit |
| Bcwsa East Cooper (0820009) · Moncks Corner | 12,933 | 5.4 | 6.6 | 7 | Above limit |
| Conway Rural (2620001) · Conway | 12,740 | 7.9 | 5.4 | 7 | Above limit |
| High Hills Rural Water CO INC (4320003) · Dalzell | 12,545 | - | - | 0 | None found |
| Walterboro City of (1510004) · Walterboro | 11,829 | - | - | 0 | None found |
| Newberry CO W&sa (3620002) · Newberry | 11,157 | 2.2 | 6.7 | 5 | Above limit |
| York City of (4610001) · York | 11,137 | - | - | 2 | Below limits |
| Starr-iva W/d (sc0420005) · Starr | 11,125 | 1.2 | 1.0 | 3 | Sample at limit |
| Ocean Lakes Ltd (2660048) · Myrtle Beach | 10,727 | 1.2 | 1.1 | 3 | Sample at limit |
| Tega Cay City of (sc4610008) · Tega Cay | 10,500 | - | - | 2 | Below limits |
| Gilbert-summit WD (3220001) · Gilbert | 10,400 | - | - | 0 | None found |
| Winnsboro Town of (2010001) · Winnsboro | 10,391 | - | 15.4 | 4 | Above limit |
| Pickens Wtp (3910001) · Pickens | 10,263 | - | - | 0 | None found |
| Shaw Afb (sc4310501) · Shaw Afb | 10,000 | 3.1 | 5.2 | 4 | Above limit |
| Newberry City of (3610001) · Silverstreet | 9,947 | 4.1 | 9.2 | 7 | Above limit |
| Grassy Pond Water CO (1120002) · Gaffney | 9,895 | 12.7 | 15.6 | 7 | Above limit |
| Westminster City of (3710003) · Westminster | 9,588 | - | - | 0 | None found |
| Broadway W&s District (0420008) · Anderson | 9,586 | - | - | 1 | Below limits |
| Southside W/d (3920010) · Liberty | 9,568 | - | - | 0 | None found |
| Kiawah Island Utility (sc1010008) · Kiawah Island | 9,550 | 3.2 | 6.3 | 6 | Above limit |
| Isle of Palms W/s Comm (sc1010004) · Isle of Palms | 9,530 | 1.4 | 6.8 | 7 | Above limit |
| Lake City City of (sc2110007) · Lake City | 9,191 | - | - | 0 | None found |
| Bennettsville City of (sc3410001) · Bennettsville | 9,168 | - | - | 0 | None found |
| Gsw&sa-marion City of (3310001) · Conway | 9,104 | - | - | 0 | None found |
| Georgetown City of (2210001) · Georgetown | 9,092 | 5.7 | 8.8 | 6 | Above limit |
| Moncks Corner City of (sc0810001) · Moncks Corner | 8,956 | 5.2 | 6.8 | 7 | Above limit |
| Clinton City of (3010002) · Clinton | 8,938 | 6.7 | 6.3 | 9 | Above limit |
| Beech Island W/d (sc0220004) · Beech Island | 8,935 | - | - | 0 | None found |
| Hartsville City of (sc1610003) · Hartsville | 8,711 | - | - | 0 | None found |
| Srns LLC A-area (0230501) · Aiken | 8,700 | - | - | 0 | None found |
| Dacusville-cedarrock Wt CO (sc3920008) · Pickens | 8,700 | - | - | 0 | None found |
| Mccormick CO W&sa (sc3520002) · Mccormick | 8,500 | - | 7.9 | 5 | Above limit |
| Clover Town of (4610006) · Clover | 8,400 | - | - | 0 | None found |
| Clemson University (sc3910006) · Clemson | 8,320 | - | - | 1 | Below limits |
| Valley Psa (sc0220012) · Gloverville | 7,752 | - | - | 0 | None found |
| Gaston Rural Water Dist (sc3220002) · Gaston | 7,550 | - | - | 0 | None found |
| Meansville Riley W/d (sc4420001) · Union | 7,368 | 4.8 | 4.5 | 5 | Above limit |
| Mullins City of (3310002) · Conway | 7,366 | - | - | 0 | None found |
| Homeland Park W/d (0420001) · Anderson | 7,328 | - | - | 1 | Below limits |
| New Ellenton-cpw (0210007) · New Ellenton | 7,277 | - | - | 0 | None found |
| Bgwc I-20 (3250012) · Columbia | 7,146 | 2.8 | 7.3 | 7 | Above limit |
| Darlington City of (sc1610001) · Darlington | 7,142 | - | - | 0 | None found |
| Wcwsa (sc4510007) · Kingstree | 7,099 | - | - | 0 | None found |
| Dillon City of (sc1710001) · Dillon | 6,998 | - | - | 0 | None found |
| Batesburg Leesville Dpw (3210002) · Batesburg-leesville | 6,814 | 6.8 | 10.6 | 4 | Above limit |
| Belton City of (sc0410004) · Belton | 6,762 | 1.2 | - | 5 | Above limit |
| Williamston Town of (0410010) · Williamston | 6,693 | - | - | 1 | Below limits |
| Bethlehem-roanoke W/d (3920003) · Pickens | 6,334 | - | - | 0 | None found |
| Cheraw Town of (1310001) · Cheraw | 6,325 | - | 3.6 | 4 | Sample at limit |
| Kingstree Town of (4510002) · Kingstree | 6,009 | - | - | 0 | None found |
| Seabrook Island Town of (1010009) · Johns Island | 5,939 | 2.4 | 6.7 | 5 | Above limit |
| Manning Town of (1410002) · Manning | 5,908 | - | - | 0 | None found |
| Edisto Beach Town of (sc1510006) · Edisto Island | 5,848 | - | - | 0 | None found |
| Daniel Morgan Water District (1120001) · Chesnee | 5,746 | 1.0 | 1.2 | 2 | Sample at limit |
| City of Abbeville · Abbeville | 5,650 | - | - | 4 | Above limit |
| Pendleton Town of (sc0410006) · Pendleton | 5,597 | - | - | 1 | Below limits |
| Draytonville Water Dist (1120003) · Gaffney | 5,456 | 10.2 | 11.6 | 7 | Above limit |
| Marlboro Water CO (sc3420001) · Bennettsville | 5,360 | - | - | 0 | None found |
| Goucher WD (1120004) · Pacolet | 5,323 | 11.9 | 14.5 | 7 | Above limit |
| Donalds-due West W&sa (sc0120001) · Donalds | 5,200 | - | - | 4 | Above limit |
| Sws-landrum Wtp (sc4210003) · Spartanburg | 5,143 | - | - | 0 | None found |
| Folly Beach City of (1010005) · Folly Beach | 5,086 | 4.5 | 6.6 | 7 | Above limit |
| Johnsonville City of (sc2110011) · Johnsonville | 5,083 | - | - | 0 | None found |
| Georgetown Rural Comm Wa (2220001) · Georgetown | 4,941 | - | - | 0 | None found |
| Alligator Rural Water (sc1320004) · Mcbee | 4,743 | - | - | 0 | None found |
| Barnwell Town of (sc0610001) · Barnwell | 4,693 | - | - | 0 | None found |
| Saluda CO W&s Authority (4120001) · Ridge Spring | 4,535 | 3.8 | 7.9 | 6 | Above limit |
| Blacksburg Town of (1110002) · Blacksburg | 4,496 | 10.9 | 10.9 | 8 | Above limit |
| Gcwsd Kilsock Water Sys (sc2220002) · Pawleys Island | 4,417 | - | - | 0 | None found |
| Lakewood Campground (2660049) · Myrtle Beach | 4,415 | - | - | 0 | None found |
| Honea Path Town of (0410003) · Honea Path | 4,386 | - | - | 3 | Above limit |
| Loris City of (2610010) · Loris | 4,350 | - | - | 0 | None found |
| Keowee Key Utility System INC (3750023) · Salem | 4,108 | - | - | 0 | None found |
| Amicks Ferry Wtr System (3250077) · Chapin | 3,937 | 1.1 | 3.7 | 5 | Sample at limit |
| Dalzell Water District (sc4320001) · Sumter | 3,912 | - | - | 0 | None found |
| Allendale Town of (sc0310001) · Allendale | 3,882 | - | - | 0 | None found |
| Montmorenci W/d (0220008) · Aiken | 3,837 | - | - | 0 | None found |
| Bishopville Town of (3110001) · Bishopville | 3,810 | - | - | 0 | None found |
| Bamberg Public Works (0510001) · Bamberg | 3,735 | - | - | 0 | None found |
| Jackson Town of (0210002) · Jackson | 3,660 | - | - | 0 | None found |
| Fripp Island PSD (0720002) · Fripp Island | 3,536 | 1.1 | 4.6 | 5 | Above limit |
| Denmark Town of (0510002) · Denmark | 3,500 | - | - | 0 | None found |
| Midcounty Water Dist 2 (2020004) · Winnsboro | 3,500 | - | 10.0 | 4 | Above limit |
| Central Town of (3910005) · Central | 3,495 | 1.1 | 1.1 | 3 | Sample at limit |
| Broad Creek PSD (0720009) · Hilton Head Island | 3,481 | - | - | 0 | None found |
| Andrews Town of (sc2210003) · Andrews | 3,450 | - | - | 0 | None found |
| Saluda Cpw (4110001) · Saluda | 3,390 | 4.7 | 7.9 | 6 | Above limit |
| Liberty City of (sc3910003) · Liberty | 3,349 | - | - | 0 | None found |
| Hemingway Town of (sc4510004) · Hemingway | 3,191 | - | - | 0 | None found |
| Ware Shoals Town of (2410003) · Ware Shoals | 3,174 | 1.4 | 6.4 | 6 | Above limit |
| Metro Subdistrict B (4220003) · Spartanburg | 1,851 | - | - | 0 | None found |
| Lake View Town of (sc1710003) · Conway | 1,293 | - | - | 0 | None found |
| Branchville Town of (3810005) · Branchville | 1,218 | - | - | 0 | None found |
| Lamar Town of (sc1610004) · Lamar | 1,034 | - | - | 0 | None found |
| Dcwa Calomet Valley (1850009) · Summerville | 275 | 3.5 | 5.2 | 7 | Above limit |
| Silver Lake Mhp (sc3260022) · West Columbia | 122 | - | - | 0 | None found |
| West Pelzer Town of (sc0410009) | - | - | 0 | None found |
On a private well in South Carolina?
EPA's program only covers public systems. Private wells are never part of UCMR 5, so the only way to know is to test. Our well testing guide covers which lab tests to order, and the best well water systems covers what to install once you have results.
Cite this page
Well & Tap. "PFAS in South Carolina drinking water: results for 165 systems." Data: U.S. EPA UCMR 5, final release August 2026. https://wellandtap.com/pfas/south-carolina/
Source: EPA UCMR 5 final occurrence data (August 2026); population from EPA SDWIS. Method.