Butler Water Quality Report
11 cities ranked · Average grade: C+ · Pennsylvania
Avg Score
65.9
Cities Ranked
11
Health Violations
10
PFAS Detected
5
65.9
County avg score
11
Cities ranked
36%
A or B grade
27%
D or F grade
10
Health violations
5
PFAS detected
Grade Distribution
How Butler cities scored
A
2
18%
Excellent
B
2
18%
Good
C
4
36%
Fair
D
1
9%
Poor
F
2
18%
Failing
Comparison
County vs Pennsylvania average
▲ 7.6 pts above state average
City Map
Water quality across Butler
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Butler
County context
1,968
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Butler
Industrial polluters nearby
Facilities reporting the most surface-water releases in Butler, 2023.
Total reported releases to surface water: 1,968 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
CLEVELAND-CLIFFS STEEL CORP /BUTLER WORKS BUTLER, PA16001 | Manganese compounds | 1,853 |
SONNEBORN LLC PETROLIA, PA16050 | Barium And Barium Compounds | 111 |
BERRY METAL CO HARMONY, PA16037 | Copper | 3 |
VORTEQ VALENCIA LLC VALENCIA, PA16059 | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region) | 1 |
ARMSTRONG CEMENT & SUPPLY CORP CABOT, PA16023 | Mercury compounds | 0 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Full Rankings
All 11 cities in Butler
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Seven Fields | A- | 88.1 | 3K | 31 | Health Unresolved | |
| 2 | Petrolia | A- | 85.8 | 4K | 10 | Unresolved | |
| 3 | Cranberry Twp | B+ | 80.8 | 42K | 67 | Health Unresolved | |
| 4 | Harmony | B | 76 | 7K | 163 | Health Unresolved | |
| 5 | Mars | C+ | 69.3 | 11K | 217 | Health Unresolved | |
| 6 | Cabot | C+ | 68.9 | 950 | 66 | Health Lead Unresolved | |
| 7 | Zelienople | C- | 59.7 | 4K | 160 | Health PFAS Unresolved | |
| 8 | Evans City | C- | 58.4 | 2K | 266 | Health Lead Unresolved | |
| 9 | Chicora | D+ | 53.9 | 1K | 113 | Health Lead Unresolved | |
| 10 | New Castle | F | 42.5 | 162K | 918 | Health Unresolved | |
| 11 | Slippery Rock | F | 41.8 | 16K | 305 | Health Unresolved |