Lyon County contains 37 EPA-regulated facilities, 3 of which are currently flagged for significant noncompliance. The county also hosts 2 Superfund sites and 17 TRI chemical reporters. EPA has assessed $79.3k in lifetime penalties and TRI reporters disclosed roughly 43.1k lb of on-site releases. That facility count is near the Nevada state average of 37 per county.
| Site | City | Status |
|---|---|---|
| Carson River Mercury Site | Dayton | Cleanup underway |
| Anaconda Copper Mine | Yerington | Cleanup underway |
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Nevada Cement Co | Fernley | 33.1k | Sig. violation |
| Medallic Art Co. Ltd. | Dayton | 8.1k | Compliant |
| Carboline Global Inc | Dayton | 1.5k | Compliant |
| Western Emulsion Plant | Fernley | 199 | Compliant |
| Fernley Facility | Fernley | 58 | Compliant |
| 21st Century Environmental Llc - Clean Earth Tsdf | Fernley | 33 | Compliant |
| Louisiana Pacific Corp | Fernley | 16 | Compliant |
| Paramount-Nevada Asphalt Co Llc | Fernley | 12 | Compliant |
| Sika Corporation- Fernley Plant | Fernley | 10 | Compliant |
| Polyglass | Fernley | 5 | Compliant |
| Feldmeier Equipment | Fernley | 2 | Compliant |
| Henry Company | Fernley | 2 | Compliant |
| Pumpkin Hollow Project | Yerington | 1 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Nevada Cement Co | Fernley | $67.0k | 2025-07-09 |
| Dayton Tap House Llc | $0 | 2013-01-10 | |
| Carson River Estates | Dayton | $0 |