Butler, OH
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 Butler in Ohio · Population: 389,910
TRI sites such as Cleveland-Cliffs Inc.; The Shepherd Color Co; Middletown Coke Co; SDWIS systems such as BUTLER CO. WATER DISTRICT 2 PWS; HAMILTON PUBLIC WATER SYSTEM; MIDDLETOWN CITY PWS; NPL sites such as Armco Inc., Hamilton Plant; Chem-Dyne; Skinner Landfill anchor Butler, OH's EPA extract. Derived burden score 72/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Cleveland-Cliffs Inc.; The Shepherd Color Co; Middletown Coke Co are among the largest Form R filers reporting in Butler; no SDWIS system here carries an active health-based flag. AQS median AQI 53 / peak 122 in 2024.
Burden score 72/100 (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 Butler -- 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 Butler, OH: EPA TRI 2023 reporting year
Same facilities, both years
-20.3%
44 facilities that filed in 2022 and 2023
Whole inventory
-22.0%
2.6 million lb → 2.0 million lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 4 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Butler, OH's total reported releases fell from 2.5 million lb in 2022 to 2.0 million lb in 2023, based on EPA TRI filings.
- Butler, OH's land releases rose from 10 lb in 2022 to 364 lb in 2023, based on EPA TRI filings.
- Butler, OH's water releases fell from 171.7 thousand lb in 2022 to 98.9 thousand lb in 2023, based on EPA TRI filings.
- Butler, OH's off-site transfers fell from 2.1 million lb in 2022 to 1.7 million lb 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 | 154 (42%) | 209 | 3 | 122 |
| 2023 | 107 (29%) | 242 | 12 | 197 |
| 2022 | 146 (40%) | 215 | 4 | 119 |
| 2021 | 128 (35%) | 232 | 5 | 116 |
| 2020 | 279 (76%) | 84 | 3 | 126 |
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 Ohio, see the EPA's AirNow.gov.
Water Systems (14)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| BUTLER CO. WATER DISTRICT 2 PWS | 116,572 | 0 |
| HAMILTON PUBLIC WATER SYSTEM | 62,447 | 0 |
| MIDDLETOWN CITY PWS | 51,229 | 0 |
| FAIRFIELD CITY PWS | 44,907 | 0 |
| SOUTHWEST REGIONAL WATER DISTRICT | 42,856 | 0 |
| OXFORD CITY PWS | 24,000 | 0 |
| MONROE CITY PWS | 15,600 | 0 |
| TRENTON CITY PWS | 13,012 | 0 |
| NEW MIAMI VILLAGE PWS | 3,200 | 0 |
| CATALINA MOBILE HOME PARK | 1,280 | 0 |
| SEVEN MILE VILLAGE PWS | 1,000 | 0 |
| TROY OAKS HOMES | 450 | 0 |
| CROUSE MOBILE HOME PARK & SALES, LLC | 247 | 0 |
| NORTHVIEW UTILITY CORPORATION PWS | 87 | 0 |
TRI Facilities (50)
Superfund Sites (3)
| Site Name | Status | HRS Score |
|---|---|---|
| Armco Inc., Hamilton Plant | Proposed NPL Site | 69.34 |
| Chem-Dyne | NPL Site | 0.00 |
| Skinner Landfill | NPL Site | 30.23 |
Cities in Butler (11)
Frequently Asked Questions
What is the environmental risk level in Butler, Ohio? ▼
Are there Superfund sites in Butler? ▼
How many toxic release facilities are in Butler? ▼
What is the air quality in Butler? ▼
Is the drinking water safe in Butler? ▼
What environmental agencies cover Butler? ▼
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.