Allegheny, PA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Allegheny in Pennsylvania · Population: 1,240,476
TRI sites such as Uss Mon Valley Works - Edgar Thomson Plant; Uss-Clairton Plant; Synthomer Jefferson Hills LLC; SDWIS systems such as PITTSBURGH WATER & SEWER AUTH; WEST VIEW WATER AUTHORITY; WILKINSBURG-PENN JT WATER AUTH; NPL sites such as Breslube-Penn, Inc; Lindane Dump; Ohio River Park anchor Allegheny, PA's EPA extract. Derived burden score 94/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Allegheny include PITTSBURGH WATER & SEWER AUTH; WEST VIEW WATER AUTHORITY; WILKINSBURG-PENN JT WATER AUTH, while Uss Mon Valley Works - Edgar Thomson Plant leads reported TRI pounds among local Form R filers. AQS median AQI 52 / peak 129 in 2024.
Burden score 94/100 (High Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Allegheny -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Allegheny, PA: EPA TRI 2023 reporting year
Same facilities, both years
-11.6%
52 facilities that filed in 2022 and 2023
Whole inventory
-11.5%
9.5 million lb → 8.4 million lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 6 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Allegheny, PA's total reported releases fell from 9.5 million lb in 2022 to 8.4 million lb in 2023, based on EPA TRI filings.
- Allegheny, PA's air releases fell from 1.8 million lb in 2022 to 1.2 million lb in 2023, based on EPA TRI filings.
- Allegheny, PA's water releases fell from 3.7 million lb in 2022 to 2.9 million lb in 2023, based on EPA TRI filings.
- Allegheny, PA's chemicals reported fell from 96 in 2022 to 91 in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 175 (48%) | 182 | 9 | 129 |
| 2023 | 121 (33%) | 227 | 15 | 237 |
| 2022 | 129 (35%) | 225 | 10 | 151 |
| 2021 | 118 (32%) | 240 | 6 | 154 |
| 2020 | 138 (38%) | 218 | 10 | 128 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Pennsylvania, see the EPA's AirNow.gov.
Water Systems (41)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| PITTSBURGH WATER & SEWER AUTH | 520,000 | 2 |
| WEST VIEW WATER AUTHORITY | 200,000 | 2 |
| WILKINSBURG-PENN JT WATER AUTH | 125,000 | 2 |
| HAMPTON SHALER WATER AUTHORITY | 61,949 | 0 |
| MONROEVILLE MUNICIPAL AUTH | 48,500 | 6 |
| OAKMONT WATER AUTHORITY | 39,901 | 0 |
| MOON TWP MUNI AUTH | 38,000 | 2 |
| PLUM BORO MUNI AUTH | 27,500 | 2 |
| WESTERN ALLEGHENY COUNTY MUN A | 19,031 | 3 |
| FOX CHAPEL AUTH | 18,500 | 0 |
| ROBINSON TWP MUNI AUTH | 16,354 | 0 |
| HARRISON TWP WATER AUTH | 13,411 | 0 |
| RICHLAND TWP WATER AUTHORITY | 10,190 | 0 |
| EDGEWORTH BORO MUNI AUTH | 7,781 | 2 |
| SEWICKLEY BORO WATER AUTH | 6,800 | 1 |
| NEVILLE TWP WATER DEPT | 6,750 | 0 |
| CORAOPOLIS WATER & SEWER AUTH | 5,804 | 0 |
| DUQUESNE WATER DEPT | 5,565 | 14 |
| TARENTUM BORO WATER DEPT | 4,927 | 3 |
| FAWN FRAZER JT WATER AUTH | 4,650 | 14 |
| BRACKENRIDGE BORO WATER DEPT | 3,700 | 2 |
| SPRINGDALE BORO WATER DEPT | 3,405 | 0 |
| RESERVE TWP WATER DEPT | 3,204 | 0 |
| HARMAR TWP MUNI AUTH | 3,200 | 0 |
| ASPINWALL BORO WATER DEPT | 3,151 | 6 |
| BLAWNOX BORO WATER DEPT | 2,200 | 68 |
| ALEPPO TWP AUTH | 2,200 | 0 |
| EAST DEER TWP WATER DEPT | 2,000 | 3 |
| CHESWICK BORO WATER DEPT | 1,861 | 0 |
| BRADDOCK BORO WATER AUTH | 1,708 | 7 |
| TOWNSHIP OF SPRINGDALE | 1,600 | 1 |
| OAKDALE BORO WATER DEPT | 1,459 | 0 |
| CARSON TOWERS | 266 | 0 |
| EVERGREEN WILDWOOD MOBILE HOME PARK | 230 | 10 |
| BELLEVUE MOBILE HOME PARK | 190 | 2 |
| RIVERSBEND MOBILE HOME PARK | 180 | 0 |
| EVERGREEN PLEASANT VALLEY TRAILER PARK | 94 | 4 |
| FAIRFIELD MANOR MHP | 92 | 2 |
| COUNTRYSIDE ESTATES MHP | 39 | 0 |
| CRESTVIEW MOBILE HOME PARK | 35 | 0 |
| CRYSTAL SPRINGS MHP | 25 | 0 |
TRI Facilities (50)
Superfund Sites (4)
| Site Name | Status | HRS Score |
|---|---|---|
| Breslube-Penn, Inc | NPL Site | 50.00 |
| Lindane Dump | NPL Site | 51.62 |
| Ohio River Park | NPL Site | 42.24 |
| Resin Disposal | Deleted NPL Site | 37.69 |
Cities in Allegheny (42)
Frequently Asked Questions
What is the environmental risk level in Allegheny, Pennsylvania? ▼
Are there Superfund sites in Allegheny? ▼
How many toxic release facilities are in Allegheny? ▼
What is the air quality in Allegheny? ▼
Is the drinking water safe in Allegheny? ▼
What environmental agencies cover Allegheny? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.