Porter County contains 140 EPA-regulated facilities, 7 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 24 TRI chemical reporters. EPA has assessed $7.8M in lifetime penalties and TRI reporters disclosed roughly 8.8M lb of on-site releases. That facility count is well above the Indiana state average of 63 per county.
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Cleveland-Cliffs Burns Harbor Llc | Burns Harbor | 8.6M | Sig. violation |
| Precoat Metals | Portage | 73.8k | Penalties |
| Cathay Pigments Usa Inc | Valparaiso | 38.0k | Compliant |
| Pvs Steel Services Inc | Portage | 32.6k | Sig. violation |
| Nlmk Indiana | Portage | 24.4k | Sig. violation |
| Aoc Trusted Solutions | Valparaiso | 12.4k | Compliant |
| Pratt Paper (In) Llc | Valparaiso | 6.4k | Compliant |
| Pvs Steel Services Inc | Burns Harbor | 3.1k | Penalties |
| Worthington Steel | Porter | 659 | Compliant |
| In Dunes Natl Lakeshore-Bailly Comfort-Treatment Plant | Porter | 357 | Compliant |
| Am Stabilizers Corp | Valparaiso | 39 | Compliant |
| Lake Cable Of Indiana, Llc | Valparaiso | 5 | Compliant |
| Chrome Deposit Corp | Portage | 1 | Compliant |
| Urschel Laboratories Inc | Chesterton | 1 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Cleveland-Cliffs Burns Harbor Llc | Burns Harbor | $3.6M | 2026-03-17 |
| Pvs Steel Services Inc | Portage | $639.0k | 2025-06-24 |
| Nlmk Indiana | Portage | $45.7k | 2025-06-19 |
| O-N Minerals (Portage) Company Llc Dba Carmeuse Lime & Stone | Portage | $500 | 2022-10-06 |
| Frampton Wright Ydc Bldg - Well #7-Treatment Plant #1 | Valparaiso | $0 | 2018-05-15 |
| Westside Properties Llc | $0 | 2009-08-07 | |
| Reworld Solutions, Llc | Portage | $0 | 2026-02-26 |