Union, 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 Union in Ohio · Population: 65,293
TRI sites such as Scotts Co; Honda of America Manufacturing Inc; Contitech USA LLC; SDWIS systems such as MARYSVILLE CITY PWS; RICHWOOD VILLAGE PWS; MILFORD CENTER VILLAGE PWS anchor Union, OH's EPA extract. Derived burden score 35/100 (Moderate 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 Union include RICHWOOD VILLAGE PWS; MILFORD CENTER VILLAGE PWS, while Scotts Co leads reported TRI pounds among local Form R filers. No AQS county monitors report here.
Burden score 35/100 (Moderate 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 Union -- 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 Union, OH: EPA TRI 2023 reporting year
Same facilities, both years
-14.0%
4 facilities that filed in 2022 and 2023
Whole inventory
-14.0%
1.2 million lb → 1.0 million lb, every facility that filed
- Union, OH's total reported releases fell from 1.2 million lb in 2022 to 1.0 million lb in 2023, based on EPA TRI filings.
- Union, OH's water releases fell from 255 lb in 2022 to 126 lb in 2023, based on EPA TRI filings.
- Union, OH's air releases fell from 1.0 million lb in 2022 to 886.4 thousand lb in 2023, based on EPA TRI filings.
- Union, OH's off-site transfers fell from 131.8 thousand lb in 2022 to 123.0 thousand lb in 2023, based on EPA TRI filings.
Water Systems (4)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| MARYSVILLE CITY PWS | 25,571 | 0 |
| RICHWOOD VILLAGE PWS | 2,200 | 2 |
| MILFORD CENTER VILLAGE PWS | 792 | 1 |
| WEST MANSFIELD VILLAGE PWS | 700 | 0 |
TRI Facilities (4)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Scotts Co | 5.1M lbs |
| 2 | Honda of America Manufacturing Inc | 1.3M lbs |
| 3 | Contitech USA LLC | 252.6K lbs |
| 4 | Shelly Materials Plant 24 (0180000002) | 1 lbs |
Cities in Union (5)
Frequently Asked Questions
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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.