EPA-regulated facilities in Trinity County, CA

There are 307 EPA-regulated facilities inside Trinity County, California. The most common kinds are hazardous waste (183), air emissions (56), drinking water systems (51). None is in significant noncompliance, but 12 have a violation on record.

Open the map of Trinity County

307facilities in the county

0in significant noncompliance

12with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	183
Large quantity generators	6
Small quantity generators	16
Transporters	2
Chemical (RMP/TRI)	1
Superfund	4
Air emissions	56
Water discharge	16
Minor permits	15
Drinking water systems	51
Data centers	2
Recycling centers	2

A facility enrolled in several programs counts once in the total and once in each of its categories.

Superfund sites

CHEEK SKYLINE LOGGING HIGHWAY 3, DOUGLAS CITY, CA, 96024
US FOREST SVC-DRINKWATER GULCH MINE-CA0000983718 SE 1/4 OD SEC 6, T31N, R12W, HAYFORK, CA, 96041
SIX RIVERS NAT FOREST SIX RIVERS NAT FOREST, EUREKA, CA, 95501
US FOREST SVC-GOLDEN JUBILEE MINE NE 1/4 OF S. 4, T37N, R8W, TRINITY CENTER, CA, 96091

Data centers

LEVEL 3 COMMUNICATIONS - WILDWOOD 700 WILDWOOD ROAD, WILDWOOD, CA, 96076
LEVEL 3 COMMUNICATIONS - MAD RIVER 5391 STATE HWY 36, MAD RIVER, CA, 95526

Bordering counties

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. The Data page explains where each record comes from and how it can mislead.