South Carolina tap water, by utility.

170 utilities with a full report, serving 4.6 million people as they report it. Regulated PFAS turned up at 84 of them.

South Carolina utilities by population served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Greenville Water	Greenville	426,057	None found	0
City of Columbia	Columbia	354,068	PFOA, PFOS, HFPO-DA, PFBS	2
Charleston Water System	Charleston	327,422	PFOA, PFOS, PFBS	0
Gsw&Sa	Conway	252,840	PFOA, PFOS, PFBS	0
Spartanburg Water System	Spartanburg	166,364	None found	2
Bjw&Sa	Okatie	164,829	PFOA, PFOS, PFBS	1
Bcwsa Sangaree W/D	Moncks Corner	95,345	PFOA, PFOS, PFBS	0
MT Pleasant Water Works	Mount Pleasant	91,500	PFOA, PFOS, PFBS	0
City of Rock Hill	Rock Hill	89,850	None found	0
Sjwd Middle Tyger WTP	Lyman	89,531	None found	0
Summerville Cpw	Summerville	81,750	PFOA, PFOS, PFBS	0
City of Florence	Florence	79,745	PFOA, PFOS, PFBS	2
Lancaster County W&SD	Lancaster	79,107	None found	1
Greer Cpw	Greer	54,024	None found	0
City of Sumter	Sumter	53,070	None found	0
Darlington County W&SA	Darlington	52,288	None found	0
Greenwood Cpw	Greenwood	52,022	PFOA, PFOS, HFPO-DA, PFBS	0
City of Aiken	Aiken	51,533	PFHxS, PFBS	7
City of Myrtle Beach	Myrtle Beach	49,375	PFOA, PFOS, PFHxS, PFBS	0
Joint Municipal WSC	Lexington	47,838	PFOA, PFOS, HFPO-DA	1
Orangeburg Dpu	Orangeburg	47,463	PFOS	0
Laurens County W&S Comm	Laurens	44,866	PFOA, PFOS, PFHxS, HFPO-DA, PFBS	0
City of N Myrtle Beach	North Myrtle Beach	43,883	PFOA, PFOS, PFBS	0
City of Goose Creek	Goose Creek	43,744	PFOA, PFOS, HFPO-DA, PFBS	0
Gcwsd Waccamaw Neck	Pawleys Island	41,300	PFOA, PFOS, PFBS	1
Inman Campobello W/D	Inman	41,007	None found	0
Dcwa Knightsville	Summerville	40,141	PFOA, PFOS, PFBS	0
Blue Ridge Water Co Inc	Greer	40,006	None found	0
City of Seneca	Seneca	39,772	None found	0
Electric City Utilities	Anderson	38,204	PFBS	1
Easley Combined Util	Easley	36,098	None found	0
Powdersville Water District	Easley	34,960	PFBS	0
City of West Columbia	West Columbia	34,028	PFOA, PFOS, HFPO-DA, PFBS	1
Woodruff Roebuck W/D	Woodruff	32,038	PFOA, PFBS	2
Fort Jackson	Fort Jackson	31,000	PFOA, PFOS, HFPO-DA, PFBS	0
York County East WD	York	30,225	None found	2
Edgefield Co W&SA	North Augusta	29,200	None found	2
City of Conway	Conway	27,005	PFOA, PFOS, PFBS	0
Dcws Ashley Phosphate	North Charleston	26,536	PFOA, PFOS, PFBS	0
City of North Augusta	North Augusta	26,125	None found	0
Lugoff Elgin Water Auth	Lugoff	25,783	PFOA, PFOS	0
Chesterfield Co Rural Water	Chesterfield	25,691	None found	0
Hilton Head PSD 1	Hilton Head Island	25,558	PFOA, PFOS, PFBS	0
Cassatt WTR Kershaw - Lee Co RWA	Cassatt	25,485	None found	0
Town of Fort Mill	Fort Mill	25,000	None found	0
Gaffney Bpw	Gaffney	24,290	PFOA, PFOS, PFHxS, PFBS	0
Town of Lexington	Lexington	24,284	PFOA, PFOS, HFPO-DA	0
St John'S Water	Johns Island (Sta.)	22,592	PFOA, PFOS, PFBS	0
Breezy Hill W/D	Graniteville	21,197	PFOA, PFBS	0
Hammond W/D	Belton	21,193	PFBS	0
City of Camden	Camden	19,076	PFOA, PFOS	0
South Island PSD	Hilton Head Island	18,299	None found	0
York County West WD	York	18,273	None found	1
Lcf Water District	Chesnee	18,152	None found	0
Trico Water Company	Dillon	17,963	None found	0
City of Clemson	Clemson	17,896	PFBS	0
City of Cayce	Cayce	17,460	PFOA, PFOS, HFPO-DA, PFBS	0
West Anderson W/D	West Anderson	17,430	PFBS	0
Sandy Springs Water Co Inc	La France	17,311	PFBS	0
Bucksport Water Company	Conway	17,123	None found	5
Marco Rural Water Co	Marion	17,120	None found	0
Pioneer Rural Water Dist	Westminster	16,929	None found	0
City of Walhalla	Walhalla	16,010	None found	0
Chester Metropolitan District	Fort Lawn	15,668	PFOA, PFOS	0
Six Mile W/D	Six Mile	14,845	None found	0
City of Lancaster	Lancaster	14,074	PFOA	0
Laurens Cpw	Laurens	13,902	PFBS	0
Big Creek W/S District	Belton	13,647	PFBS	0
City of Union	Union	13,076	PFOA, PFOS, PFBS	0
Bcwsa East Cooper	Moncks Corner	12,933	PFOA, PFOS, HFPO-DA, PFBS	0
Conway Rural	Conway	12,740	PFOA, PFOS, PFBS	0
High Hills Rural Water Co Inc	Dalzell	12,545	None found	0
City of Walterboro	Walterboro	11,829	None found	0
Newberry Co W&SA	Newberry	11,157	PFOA, PFOS, HFPO-DA	1
City of York	York	11,137	None found	2
Starr - Iva W/D	Starr	11,125	PFOA, PFOS, PFBS	0
Ocean Lakes Ltd	Myrtle Beach	10,727	PFOA, PFOS	0
City of Tega Cay	Tega Cay	10,500	None found	0
Gilbert - Summit WD	Gilbert	10,400	None found	3
Town of Winnsboro	Winnsboro	10,391	PFOS, PFHxS	0
Pickens WTP	Pickens	10,263	None found	1
Shaw AFB	Shaw AFB	10,000	PFOA, PFOS, PFHxS	0
City of Newberry	Newberry	9,947	PFOA, PFOS, HFPO-DA, PFBS	1
Grassy Pond Water Co Inc	Gaffney	9,895	PFOA, PFOS, PFHxS, PFBS	0
City of Westminster	Westminster	9,588	None found	0
Broadway W&S District	Anderson	9,586	PFBS	0
Southside W/D	Liberty	9,568	None found	0
Kiawah Island Utility	Johns Island (Sta.)	9,550	PFOA, PFOS, PFBS	0
Isle of Palms W/S Comm	Isle of Palms	9,530	PFOA, PFOS, PFBS	0
City of Lake City	Lake City	9,191	None found	0
City of Bennettsville	Bennettsville	9,168	None found	3
City of Gsw&Sa - Marion	Marion	9,104	None found	0
City of Georgetown	Georgetown	9,092	PFOA, PFOS, PFBS	1
City of Moncks Corner	Moncks Corner	8,956	PFOA, PFOS, HFPO-DA, PFBS	0
City of Clinton	Clinton	8,938	PFOA, PFOS, PFHxS, HFPO-DA, PFBS	0
Beech Island W/D	Beech Island	8,935	None found	0
City of Hartsville	Hartsville	8,711	None found	0
Dacusville - Cedar Rock Wt Co	Pickens	8,700	None found	0
McCormick Co W&SA	McCormick	8,500	PFOS, HFPO-DA, PFBS	10
Town of Clover	Clover	8,400	None found	0
Clemson University	Clemson	8,320	PFBS	0
Valley Psa	Gloverville	7,752	None found	1
Gaston Rural Water Dist	Gaston	7,550	None found	0
Meansville Riley W/D	Union	7,368	PFOA, PFOS	1
City of Mullins	Mullins	7,366	None found	0
Homeland Park W/D	Anderson	7,328	PFBS	0
New Ellenton Cpw	New Ellenton	7,277	None found	0
Bgwc I - 20	West Columbia	7,146	PFOA, PFOS, HFPO-DA, PFBS	1
City of Darlington	Darlington	7,142	None found	0
Wcwsa	Kingstree	7,099	None found	2
City of Dillon	Dillon	6,998	None found	0
Batesburg Leesville DPW	Batesburg	6,814	PFOA, PFOS	0
City of Belton	Belton	6,762	PFOA, HFPO-DA, PFBS	1
Town of Williamston	Williamston	6,693	PFBS	0
Town of Salem	Salem	6,444	Not sampled	0
Bethlehem - Roanoke W/D	Pickens	6,334	None found	0
Town of Cheraw	Cheraw	6,325	PFOS	9
Town of Kingstree	Kingstree	6,009	None found	0
Town of Seabrook Island	Seabrook	5,939	PFOA, PFOS, PFBS	0
City of Manning	Manning	5,908	None found	0
Town of Edisto Beach	Edisto Beach	5,848	None found	0
Daniel Morgan Water District	Gaffney	5,746	PFOA, PFOS	2
City of Abbeville	Abbeville	5,650	HFPO-DA, PFBS	4
Town of Pendleton	Pendleton	5,597	PFBS	0
Draytonville Water Dist	Gaffney	5,456	PFOA, PFOS, PFHxS, PFBS	2
Marlboro Water Co	Bennettsville	5,360	None found	0
Goucher WD	Pacolet	5,323	PFOA, PFOS, PFHxS	0
Donalds - Due West W&SA	Donalds	5,200	HFPO-DA, PFBS	1
Sws - Landrum WTP	Landrum	5,143	None found	0
City of Folly Beach	Folly Beach	5,086	PFOA, PFOS, PFBS	0
City of Johnsonville	Johnsonville	5,083	None found	0
Georgetown Rural Comm WA	Georgetown	4,941	None found	0
Alligator Rural Water	McBee	4,743	None found	0
Town of Barnwell	Barnwell	4,693	None found	0
Saluda Co W&S Authority	Saluda	4,535	PFOA, PFOS, HFPO-DA, PFBS	18
Town of Blacksburg	Blacksburg	4,496	PFOA, PFOS, PFHxS, PFBS	3
Gcwsd Kilsock Water Sys	Pawleys Island	4,417	None found	0
Lakewood Campground	Myrtle Beach	4,415	None found	0
Town of Honea Path	Honea Path	4,386	HFPO-DA, PFBS	0
Trolley Run Station Development	Gloverville	4,361	Not sampled	0
City of Loris	Loris	4,350	None found	0
Keowee Key Utility System Inc	Salem	4,108	None found	0
Highway 88 W/D	La France	3,990	Not sampled	0
Amicks Ferry WTR System	Chapin	3,937	PFOA, PFOS, HFPO-DA	0
Dalzell Water District	Dalzell	3,912	None found	0
Town of Allendale	Allendale	3,882	None found	2
Montmorenci W/D	Aiken	3,837	None found	0
Town of Bishopville	Bishopville	3,810	None found	0
Bamberg Public Works	Bamberg	3,735	None found	0
Town of Jackson	Jackson	3,660	None found	0
Wallace Water Company	Wallace	3,552	Not sampled	0
Fripp Island PSD	Fripp Island	3,536	PFOA, PFOS, PFBS	0
Clarendon Co W&S Hwy 260	Manning	3,521	Not sampled	0
Midcounty Water Dist 2	Winnsboro	3,500	PFOS, PFHxS	0
Town of Denmark	Denmark	3,500	None found	1
Town of Central	Central	3,495	PFOA, PFOS, PFBS	0
Broad Creek PSD	Hilton Head Island	3,481	None found	0
City of Pageland	Pageland	3,467	Not sampled	0
Town of Hampton	Hampton	3,467	Not sampled	0
Town of Andrews	Andrews	3,450	None found	0
Saluda Cpw	Saluda	3,390	PFOA, PFOS, HFPO-DA, PFBS	11
City of Liberty	Liberty	3,349	None found	0
Town of Hemingway	Hemingway	3,191	None found	7
Town of Ware Shoals	Ware Shoals	3,174	PFOA, PFOS, HFPO-DA, PFBS	0
Metro Subdistrict B	Spartanburg	1,851	None found	0
Town of Lake View	Lake View (Corporate Name for	1,293	None found	0
Town of Branchville	Branchville	1,218	None found	0
Town of Lamar	Lamar	1,034	None found	0
Dcwa Calomet Valley	Summerville	275	PFOA, PFOS, HFPO-DA, PFBS	0
Silver Lake MHP	West Columbia	122	None found	0
Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. Data: EPA SDWIS 2026 Q2 and UCMR 5.