Harrison County contains 61 EPA-regulated facilities, 10 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 5 TRI chemical reporters. EPA has assessed $78.0k in lifetime penalties and TRI reporters disclosed roughly 16.3k lb of on-site releases. That facility count is near the Ohio state average of 71 per county.
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Harrison Hub Fractionation Plant | Scio | 6.5k | Penalties |
| Cadiz Gas Processing Plant | Cadiz | 6.4k | Compliant |
| Markwest Hopedale Fractionator | Jewett | 3.3k | Compliant |
| Utica Condensate Facility | Cadiz | 104 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Village Of Bowerston Wastewater Treatment Plant | Bowerston | $0 | 2022-04-05 |
| Harrisville Wwtp | Harrisville | $0 | 2025-10-21 |
| Clendening Lake Marina & Campground | Freeport | $0 | 2025-10-07 |
| Scio Pws-Scio Pws | Scio | $0 | 2016-07-12 |
| Deersville Village Pws-Deersville Village | Deersville | $0 | |
| Cadiz Wwtp | Cadiz | $0 | 2025-12-09 |
| Freeport Village Pws-Freeport Pws | Freeport | $0 | |
| Hopedale Mining Llc - Preparation Plant | Hopedale | $0 | 2025-03-10 |
| New Athens Wwtp | New Athens | $0 | 2025-06-17 |
| Cadiz Wtp | Cadiz | $0 | 2025-06-24 |