Johnston Water Quality Report
11 cities ranked · Average grade: C- · North Carolina
Avg Score
58.7
Cities Ranked
11
Health Violations
11
PFAS Detected
5
58.7
County avg score
11
Cities ranked
27%
A or B grade
45%
D or F grade
11
Health violations
5
PFAS detected
Grade Distribution
How Johnston cities scored
A
0
0%
Excellent
B
3
27%
Good
C
3
27%
Fair
D
3
27%
Poor
F
2
18%
Failing
Comparison
County vs North Carolina average
▼ 9.9 pts below state average
City Map
Water quality across Johnston
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Johnston
Worst cities
County context
95.5%
of residents on fluoridated water (CDC, 2020)
0
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Johnston
Industrial polluters nearby
Facilities reporting the most surface-water releases in Johnston, 2023.
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CATERPILLAR INC CLAYTON NC CLAYTON, NC27527 | — | — |
GRIFOLS THERAPEUTICS LLC CLAYTON, NC27520 | — | — |
NATVAR CLAYTON, NC27520 | — | — |
MAYCRAFT BOATS LLC FOUR OAKS, NC27524 | — | — |
NOVO NORDISK DAPI-US CLAYTON, NC27527 | — | — |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 11 cities in Johnston
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Benson | B+ | 82.3 | 4K | 19 | Health PFAS Unresolved | |
| 2 | Four Oaks | B | 77.2 | 3K | 39 | Health Unresolved | |
| 3 | Wilson Mills | B- | 74 | 92K | 22 | Health PFAS Unresolved | |
| 4 | Smithfield | C+ | 65 | 37K | 70 | Health PFAS Unresolved | |
| 5 | Kenly | C | 62.1 | 2K | 65 | Health Unresolved | |
| 6 | Selma | C- | 56.1 | 7K | 110 | Health PFAS Unresolved | |
| 7 | Pine Level | D+ | 54.3 | 3K | 172 | Health Unresolved | |
| 8 | Clayton | D | 47 | 52K | 295 | Health PFAS Unresolved | |
| 9 | Zebulon | D | 46 | 2K | 531 | Health Unresolved | |
| 10 | Micro | F | 44 | 657 | 276 | Health Unresolved | |
| 11 | Princeton | F | 38.2 | 1K | 61 | Health Lead Unresolved |