Tapcensus

South Carolina

Dorchester County drinking water quality

54 active public water systems serve 165,538 people in Dorchester County. 49 are compliant, 5 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.

Active systems 54 20 community systems
People served 166K by public water systems
Systems with violations 5 9% of active systems, past 3 years
Serious violators 0 0 systems carry a health flag

Community water systems

20 systems, largest first
SystemServesStatusRules violated, 3 yrUnresolved
Summerville Cpw (sc1810003)
Summerville
81,750 0 0
Dcwa Knightsville (sc1820001)
Summerville
40,141 0 0
Dcws Ashley Phosphate (sc1820008)
North Charleston
26,536 0 0
ST George Town of (sc1810001)
St. George
2,300 0 0
Dcws/clay Field Drive (sc1850014)
Summerville
1,648 0 0
Lieber Correctional Institute (1870050)
Ridgeville
1,646 0 0
Dcws Southern Palms (sc1850011)
Ladson
1,494 0 0
Ridgeville Industrial Campus (sc1830031)
Ridgeville
999 0 0
Harleyville Town of (sc1810002)
Harleyville
946 2 2
Dcws Edisto Tribal Council (1850010)
Ridgeville
925 0 0
Homecoming Subdivision (sc1850016)
Summerville
883 0 0
Dcwa Tranquil Acres (sc1820003)
Ladson
858 0 0
Ridgeville Town of (sc1810004)
Ridgeville
821 1 0
Dcws/reevesville
Reevesville
300 0 0
Dcwa Calomet Valley (1850009)
Summerville
275 0 0
Heron's Walk Phase 1 (sc1850017)
Summerville
231 0 0
Dcws Highway 17a (sc1820009)
Summerville
200 0 0
Dcws Caleb Court (sc1850015)
Summerville
156 0 0
Dcws Conoflow (sc1820007)
St. George
150 0 0
Dcws I-95 (sc1870914)
Harleyville
102 0 0
Non-community systems (34: schools, campgrounds, workplaces, restaurants)

These systems serve places people visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Dcws Woodland High School (1870119)
St. George
1,000 0 0
Dorchester CO Career School (sc1870109)
Dorchester
325 0 0
Harleyville Elem School (sc1870101)
Harleyville
275 0 0
Resonac Graphite America INC (sc1830007)
Harleyville
230 1 0
HM Southeast Cement Harleyville 1830001
180 0 0
Crossroads Bbq (sc1872003)
St. George
150 0 0
Harleyville Cement Plant (sc1830005)
Harleyville
105 1 0
Dcws Building (1870903)
Dorchester
100 0 0
Inn at Middleton Place (sc1870400)
Charleston
85 0 0
Middleton Place (sc1870902)
85 1 0
Primo-Food Lion 1542 (sc1880010)
Summerville
50 0 0
Brosnan Forest #1 (sc1870675)
Dorchester
26 0 0
Brosnan Forest #2 (1870676)
Dorchester
26 0 0
Carter Fast Stop #3 (sc1870212)
Ridgeville
26 0 0
Dorchester Shrine Club (sc1870906)
Summerville
26 0 0
Enk 892 (sc1870205)
Harleyville
26 0 0
Francis Beidler Forest (sc1870901)
26 0 0
Gatherings LLC (sc1874001)
Dorchester
26 0 0
Jrs Grocery (sc1870912)
26 0 0
Primo-Food Lion 2247 (sc1880018)
Summerville
26 0 0
Primo-Lowes Foods 270 (sc1880017)
Summerville
26 0 0
Primo-Publix 0824 (sc1880019)
North Charleston
26 0 0
Primo-Walmart 0628 (1880008)
Summerville
26 0 0
Primo-Walmart 1037 (sc1880009)
Summerville
26 0 0
Primo-Walmart 5279 (sc1880016)
Summerville
26 0 0
Primo-Walmart 6174 (1880014)
Summerville
26 0 0
Ronnies Station (1870200)
26 0 0
SC Dps Northbound I95 Weigh Station
Walterboro
26 0 0
Scprt-Givhan's Park (sc1870600)
Givhans
26 0 0
Dollar General-Ridgeville (sc1870939)
Ridgeville
25 0 0
HM Grr Harleyville (sc1830024)
Harleyville
25 0 0
Kings One Stop (1870928)
Dorchester
25 0 0
Lee's Stop N Shop LLC (sc1870938)
St. George
25 0 0
Tanager Woods RV CG (sc1870800)
Dorchester
24 0 0
Inactive systems (53, no longer operating or reporting)

Kept for the record and excluded from the county totals above. Browse inactive systems.

About this data

Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.

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.