St. Mary County contains 120 EPA-regulated facilities, 21 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 0 TRI chemical reporters. EPA has assessed $154.3k in lifetime penalties and TRI reporters disclosed roughly 95.6k lb of on-site releases. That facility count is well above the Louisiana state average of 68 per county.
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Conrad Shipyard Llc - Deepwater Shipyard | Amelia | 48.0k | Penalties |
| Orion Engineered Carbons-Ivanhoe Carbon Black Plant | Franklin | 47.0k | Compliant |
| Cameron International | Bayou Vista | 501 | Compliant |
| Twin Brothers Marine Llc | Louisa | 10 | Compliant |