Allegheny Water Quality Report
22 cities ranked · Average grade: B · Pennsylvania
Avg Score
75.9
Cities Ranked
22
Health Violations
19
PFAS Detected
10
75.9
County avg score
22
Cities ranked
68%
A or B grade
9%
D or F grade
19
Health violations
10
PFAS detected
Grade Distribution
How Allegheny cities scored
A
7
32%
Excellent
B
8
36%
Good
C
5
23%
Fair
D
1
5%
Poor
F
1
5%
Failing
Comparison
County vs Pennsylvania average
▲ 17.6 pts above state average
City Map
Water quality across Allegheny
Each dot is a city, colored by grade. Click any city to view its full report.
Highlights
Top & bottom cities in Allegheny
County context
3
Superfund sites in Allegheny
2,934,628
lbs/yr to surface water · top 10 TRI facilities
Industrial pollution
Top industrial polluters in Allegheny
Industrial polluters nearby
Facilities reporting the most surface-water releases in Allegheny, 2023.
Total reported releases to surface water: 2,934,628 lbs
| Facility | Top chemical | To surface water (lbs/yr) |
|---|---|---|
USS-CLAIRTON PLANT CLAIRTON, PA15025 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 2,920,929 |
USS MON VALLEY WORKS - EDGAR THOMSON PLANT BRADDOCK, PA15104 | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 10,185 |
USS MON VALLEY WORKS - IRVIN PLANT WEST MIFFLIN, PA15122 | Zinc compounds | 1,087 |
LIBERTAS COPPER LLC LEETSDALE, PA15056 | Copper And Copper Compounds | 1,022 |
CALGON CARBON CORP NEVILLE ISLAND PLANT PITTSBURGH, PA15225 | Manganese | 750 |
+ 5 more facilities
Source: EPA Toxic Release Inventory (TRI) 2023
Superfund sites
Superfund sites in Allegheny
Superfund sites nearby
Federally tracked hazardous-waste sites within Allegheny on the EPA National Priorities List.
- BRESLUBE PENN INC
- LINDANE DUMP
- OHIO RIVER PARK
Source: EPA Superfund National Priorities List
Full Rankings
All 22 cities in Allegheny
| # | City | Grade | Score | Score | Population | Violations | Issues |
|---|---|---|---|---|---|---|---|
| 1 | Gibsonia | A+ | 95.6 | 10K | 9 | Unresolved | |
| 2 | Allison Park | A | 91.7 | 62K | 28 | Unresolved | |
| 3 | Monroeville | A | 91.7 | 49K | 12 | Health Unresolved | |
| 4 | Oakmont | A | 90 | 40K | 13 | Unresolved | |
| 5 | Brackenridge | A- | 87.4 | 4K | 59 | Health Unresolved | |
| 6 | Mcmurray | A- | 86.8 | 686K | 10 | Health Unresolved | |
| 7 | Springdale | A- | 85.8 | 3K | 118 | Health Unresolved | |
| 8 | Leetsdale | B+ | 83.5 | 8K | 14 | Health Unresolved | |
| 9 | Coraopolis | B+ | 83.2 | 6K | 29 | Health PFAS Unresolved | |
| 10 | Wilkinsburg | B | 78.3 | 125K | 105 | Health Unresolved | |
| 11 | Moon Township | B | 78.3 | 38K | 59 | Health PFAS Unresolved | |
| 12 | Harwick | B | 78.2 | 2K | 26 | Health Unresolved | |
| 13 | Cheswick | B | 76.9 | 5K | 156 | Health Unresolved | |
| 14 | Clinton | B | 76.4 | 11K | 54 | Health Unresolved | |
| 15 | Natrona Heights | B- | 74.2 | 18K | 81 | Health Unresolved | |
| 16 | Duquesne | C+ | 69.6 | 6K | 60 | Health Unresolved | |
| 17 | Sewickley | C+ | 65.8 | 9K | 89 | Health Unresolved | |
| 18 | Braddock | C+ | 65.3 | 2K | 21 | Health Lead Unresolved | |
| 19 | Creighton | C | 60.8 | 2K | 44 | Health Lead Unresolved | |
| 20 | Oakdale | C- | 56.8 | 20K | 74 | Health PFAS Unresolved | |
| 21 | Tarentum | D | 48.8 | 5K | 178 | Health Unresolved | |
| 22 | Pittsburgh | F | 44 | 802K | 873 | Health Unresolved |