EPA-regulated facilities near Foster City, CA
There are 5,559 EPA-regulated facilities within 5 miles of Foster City, California. The most common kinds are hazardous waste (5,030), air emissions (569), water discharge (109). None is in significant noncompliance, but 4 have a violation on record. Penalties over the last five years total $238k across 2 sites.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 5,030 |
| Treatment, storage or disposal | 1 |
| Large quantity generators | 61 |
| Small quantity generators | 397 |
| Transporters | 16 |
| Chemical (RMP/TRI) | 33 |
| Superfund | 3 |
| Air emissions | 569 |
| Minor sources | 1 |
| Water discharge | 109 |
| Major permits | 3 |
| Minor permits | 79 |
| Drinking water systems | 8 |
| Greenhouse gas reporters | 1 |
| Data centers | 5 |
| Recycling centers | 3 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
Largest penalties
Penalties assessed over the last five years.
- SEAPORT ENVIRONMENTAL- REFINING $232k in penalties
- SAN MATEO WWTF $6k in penalties
Superfund sites
Data centers
- RV VI 777MARINERS LLC
- KEYNOTE SYSTEMS C/O ORCHARD CO
- RNM PROPERTIES
- BAY DIGITAL, INC
- USPS SAN MATEO INFORMATION TECHNOLOGY AND ACCT SVC
County
Nearby towns
Reading these numbers
These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. Distances are from the center of Foster City as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.