EPA-regulated facilities near Castro Valley, CA
There are 3,792 EPA-regulated facilities within 5 miles of Castro Valley, California. The most common kinds are hazardous waste (3,560), air emissions (343), water discharge (57). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 4 have a violation on record. Penalties over the last five years total $3k across 1 site.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 3,560 |
| Large quantity generators | 26 |
| Small quantity generators | 244 |
| Transporters | 30 |
| Chemical (RMP/TRI) | 6 |
| Superfund | 2 |
| Air emissions | 343 |
| Minor sources | 7 |
| Water discharge | 57 |
| Minor permits | 32 |
| Drinking water systems | 1 |
| Scrap yards | 1 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
In significant noncompliance
The EPA's designation for its most serious or persistent violations, as of the latest data.
- CHENG CHOW&CHU AKA HAYWARD CHIROPRACTIC Significant noncompliance
- HAYWARD CHIROPRACTIC COLLEGE Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- AARON RAMIREZ DBA KM106 CONSTRUCTION $3k in penalties
Superfund sites
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 Castro Valley as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.