All water systems in South Carolina
1,406 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Greenville Water (sc2310001) Greenville · Greenville County |
426,057 | 1 | 1 | |
|
Columbia City of (sc4010001) Columbia · Richland County |
354,068 | 1 | 0 | |
|
Charleston Water System (sc1010001) Charleston · Charleston County |
278,771 | 1 | 0 | |
|
Grand Strand W&sa/bull Creek Conway · Horry County |
252,840 | 0 | 0 | |
|
Spartanburg Water System (sc4210001) Spartanburg · Spartanburg County |
166,364 | 0 | 0 | |
|
Bjw&sa (sc0720003) Beaufort County |
164,829 | 1 | 0 | |
|
Bcwsa Sangaree W/d (0820002) Moncks Corner · Berkeley County |
95,345 | 0 | 0 | |
|
MT Pleasant Waterworks (sc1010002) Mount Pleasant · Charleston County |
91,500 | 0 | 0 | |
|
Rock Hill City of (sc4610002) Rock Hill · York County |
89,850 | 0 | 0 | |
|
Sjwd Middle Tyger Wtp (sc4220006) Lyman · Spartanburg County |
89,531 | 0 | 0 | |
|
Summerville Cpw (sc1810003) Summerville · Dorchester County |
81,750 | 0 | 0 | |
|
Florence City of (sc2110001) Florence · Florence County |
79,745 | 0 | 0 | |
|
Lancaster County W&sd (sc2920001) Lancaster · Lancaster County |
79,107 | 0 | 0 | |
|
Joint Muni WSC (sc3220003) Lexington · Lexington County |
54,868 | 0 | 0 | |
|
Greer Cpw Greer · Greenville County |
54,024 | 0 | 0 | |
|
Sumter City of (sc4310001) Sumter · Sumter County |
53,070 | 0 | 0 | |
|
Darlington County W&sa (sc1620001) Darlington · Darlington County |
52,288 | 0 | 0 | |
|
Greenwood Cpw (2410001) Greenwood · Greenwood County |
52,022 | 0 | 0 | |
|
Aiken City of (sc0210001) Aiken · Aiken County |
51,533 | 1 | 0 | |
|
Myrtle Beach City of Myrtle Beach · Horry County |
49,375 | 2 | 0 | |
|
Orangeburg Dpu (sc3810001) Orangeburg · Orangeburg County |
47,463 | 0 | 0 | |
|
Laurens County W&s Comm (sc3020001) Laurens · Laurens County |
44,866 | 0 | 0 | |
|
N Myrtle Beach City of (sc2610011) North Myrtle Beach · Horry County |
43,883 | 1 | 0 | |
|
Goose Creek City of (sc0810004) Goose Creek · Berkeley County |
43,744 | 0 | 0 | |
|
Gcwsd Waccamaw Neck (sc2220010) Pawleys Island · Georgetown County |
41,300 | 0 | 0 | |
|
Inman Campobello W/d (4220002) Inman · Spartanburg County |
41,007 | 0 | 0 | |
|
Dcwa Knightsville (sc1820001) Summerville · Dorchester County |
40,141 | 0 | 0 | |
|
Blue Ridge Water CO INC (sc2320003) Greer · Greenville County |
40,006 | 0 | 0 | |
|
Seneca City of (sc3710002) Seneca · Oconee County |
39,772 | 0 | 0 | |
|
Electric City Utilities (sc0410012) Anderson · Anderson County |
38,204 | 0 | 0 | |
|
Easley Combined Util (sc3910002) Easley · Pickens County |
36,098 | 0 | 0 | |
|
Powdersville Water District (sc0420002) Easley · Anderson County |
34,960 | 1 | 0 | |
|
West Columbia City of (sc3210004) West Columbia · Lexington County |
34,028 | 0 | 0 | |
|
Woodruff Roebuck W/d (sc4220007) Woodruff · Spartanburg County |
32,038 | 0 | 0 | |
|
Fort Jackson (sc4010501) Fort Jackson · Richland County |
31,000 | 3 | 0 | |
|
York County East WD (sc4620002) York · York County |
30,225 | 4 | 0 | |
|
Edgefield CO W&sa (1920001) North Augusta · Edgefield County |
29,200 | 0 | 0 | |
|
Conway City of (sc2610008) Conway · Horry County |
27,005 | 2 | 0 | |
|
Dcws Ashley Phosphate (sc1820008) North Charleston · Dorchester County |
26,536 | 0 | 0 | |
|
North Augusta City of (sc0210003) Aiken County |
26,125 | 1 | 0 | |
|
Lugoff Elgin Water Auth (sc2820001) Lugoff · Kershaw County |
25,783 | 0 | 0 | |
|
Chesterfield CO Rural Water (sc1320003) Chesterfield · Chesterfield County |
25,691 | 0 | 0 | |
|
Hilton Head PSD 1 (0720006) Hilton Head Island · Beaufort County |
25,558 | 0 | 0 | |
|
Cassatt Wtr Kershaw/lee CO Rwa Cassatt · Kershaw County |
25,485 | 0 | 0 | |
|
Fort Mill Town of (sc4610003) Fort Mill · York County |
25,000 | 0 | 0 | |
|
Gaffney Bpw (sc1110001) Gaffney · Cherokee County |
24,290 | 0 | 0 | |
|
Lexington Town of (3210001) Lexington · Lexington County |
24,284 | 0 | 0 | |
|
ST John's Water (sc1020002) Johns Island (sta.) · Charleston County |
22,592 | 0 | 0 | |
|
Breezy Hill W/d (sc0220006) Graniteville · Aiken County |
21,197 | 0 | 0 | |
|
Hammond W/d (sc0420007) Belton · Anderson County |
21,193 | 1 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The South Carolina records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.