EPA-regulated facilities near Half Moon Bay, CA

There are 341 EPA-regulated facilities within 5 miles of Half Moon Bay, California. The most common kinds are hazardous waste (285), air emissions (56), water discharge (16). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 1 have a violation on record. Penalties over the last five years total $148k across 2 sites.

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341facilities within 5 miles
1in significant noncompliance
1with a violation on record
$148kin penalties, last 5 years

By category

CategoryFacilities
Hazardous waste285
Large quantity generators2
Small quantity generators17
Transporters3
Chemical (RMP/TRI)1
Air emissions56
Major sources1
Water discharge16
Major permits1
Minor permits13
Drinking water systems2
Greenhouse gas reporters1

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.

Largest penalties

Penalties assessed over the last five years.

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 Half Moon Bay as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.