San Mateo County contains 157 EPA-regulated facilities, 6 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 9 TRI chemical reporters. EPA has assessed $11.4M in lifetime penalties and TRI reporters disclosed roughly 13 lb of on-site releases. That facility count is well above the California state average of 108 per county.
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Granite Rock Company Redwood City | Redwood City | 4 | Compliant |
| Pentair Thermal Management Llc | Redwood City | 3 | Compliant |
| Slac National Accelerator Laboratory | Menlo Park | 3 | Compliant |
| Univar Solutions Usa Inc | Redwood City | 2 | Compliant |
| C S Bio Co | Menlo Park | 1 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Browning-Ferris Industries Of Ca Inc | Half Moon Bay | $70.0k | 2024-02-21 |
| United Airlines, Sf Maintenance Center | San Francisco Intnl Airport | $35.0k | 2024-03-15 |
| San Francisco International Airport | San Francisco Intnl Airport | $1.8k | 2025-04-30 |
| Towne Ford | Redwood City | $0 | 2004-09-10 |
| Sims Metal America/Redwood City Division | Redwood City | $0 | 2025-03-11 |
| Cypress Amloc Land Co , Inc | Colma | $0 | 2016-09-21 |