Dorchester Water Quality Report
6 cities ranked · Average grade: B+ · South Carolina
Avg Score
82
Cities Ranked
6
Health Violations
4
PFAS Detected
2
82
County avg score
6
Cities ranked
83%
A or B grade
0%
D or F grade
4
Health violations
2
PFAS detected
Grade Distribution
How Dorchester cities scored
A
3
50%
Excellent
B
2
33%
Good
C
1
17%
Fair
D
0
0%
Poor
F
0
0%
Failing
Comparison
County vs South Carolina average
▲ 0.2 pts above state average
City Map
Water quality across Dorchester
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Dorchester
County context
95.3%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Dorchester
Industrial polluters nearby
Facilities reporting the most surface-water releases in Dorchester, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
ROBERT BOSCH LLC NORTH CHARLESTON, SC29418 | — | — |
ARGOS CEMENT HARLEYVILLE PLANT HARLEYVILLE, SC29448 | — | — |
GIANT CEMENT CO HARLEYVILLE, SC29448 | — | — |
KEY WEST BOATS INC. PLANT 1 (RIDGEVILLE) RIDGEVILLE, SC29472 | — | — |
RESONAC GRAPHITE AMERICA INC RIDGEVILLE, SC29472 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 6 cities in Dorchester
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Ladson | A | 90 | 3K | 9 | Health Unresolved | |
| 2 | St. George | A- | 88 | 2K | 10 | Unresolved | |
| 3 | Harleyville | A- | 86.3 | 1K | 10 | Health Unresolved | |
| 4 | Ridgeville | B+ | 83.1 | 4K | 32 | Health Unresolved | |
| 5 | North Charleston | B | 76.2 | 26K | 18 | PFAS Unresolved | |
| 6 | Summerville | C+ | 68.2 | 124K | 95 | Health PFAS Unresolved |