York Water Quality Report
7 cities ranked · Average grade: C+ · South Carolina
Avg Score
66.2
Cities Ranked
7
Health Violations
5
PFAS Detected
4
66.2
County avg score
7
Cities ranked
57%
A or B grade
43%
D or F grade
5
Health violations
4
PFAS detected
Grade Distribution
How York cities scored
A
2
29%
Excellent
B
2
29%
Good
C
0
0%
Fair
D
1
14%
Poor
F
2
29%
Failing
Comparison
County vs South Carolina average
▼ 15.6 pts below state average
City Map
Water quality across York
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in York
Worst cities
County context
2
Superfund sites in York
95.7%
of residents on fluoridated water (CDC, 2020)
431,080
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in York
Industrial polluters nearby
Facilities reporting the most surface-water releases in York, 2023.
Total reported releases to surface water: 431,080 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
NEW-INDY CATAWBA LLC CATAWBA, SC29704 | Methanol | 430,798 |
ATOTECH USA LLC ROCK HILL, SC29730 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 238 |
INCHEM CORP ROCK HILL, SC29730 | Methanol | 35 |
KOPPERS PERFORMANCE CHEMICALS INC ROCK HILL, SC29730 | Copper And Copper Compounds | 10 |
MASONITE CORP FORT MILL FORT MILL, SC29708 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in York
Superfund sites nearby
Federally tracked hazardous-waste sites within York on the EPA National Priorities List.
- LEONARD CHEMICAL CO INC
- ROCK HILL CHEMICAL CO
Source: EPA Superfund National Priorities List
Full Rankings
All 7 cities in York
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Sharon | A- | 89.1 | 573 | 2 | Health Unresolved | |
| 2 | Hickory Grove | A- | 86.7 | 654 | 1 | Unresolved | |
| 3 | Tega Cay | B+ | 84 | 11K | 8 | Unresolved | |
| 4 | Fort Mill | B- | 74.3 | 29K | 92 | Health Unresolved | |
| 5 | Clover | D | 45 | 10K | 470 | Health Unresolved | |
| 6 | York | F | 43.4 | 60K | 442 | Health Unresolved | |
| 7 | Rock Hill | F | 41 | 87K | 866 | Health Unresolved |