EPA-regulated facilities in Tuolumne County, CA

There are 915 EPA-regulated facilities inside Tuolumne County, California. The most common kinds are hazardous waste (674), drinking water systems (126), water discharge (71). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 11 have a violation on record.

Open the map of Tuolumne County

915facilities in the county

1in significant noncompliance

11with a violation on record

$0in penalties, last 5 years

By category

Category	Facilities
Hazardous waste	674
Large quantity generators	14
Small quantity generators	62
Transporters	6
Chemical (RMP/TRI)	4
Superfund	6
Air emissions	59
Major sources	2
Minor sources	1
Water discharge	71
Major permits	1
Minor permits	54
Drinking water systems	126
Recycling centers	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.

PINECREST ELEMENTARY SCHOOL CA Significant noncompliance

Superfund sites

TUOLUMNE RANCHERIA DRUG LAB SITE 19660 MI-WUK STREET, TUOLUMNE, CA, 95379
TUOLUMNE RESERVATION DRUG LAB BEHIND 19660 MI-WUK ST, TUOLUMNE, CA, 95379
SOULSBY GROUP 17246 - 17298 SOULSBYMINE ROAD, SOULSBYVILLE, CA, 95372
HERITAGE DRY CLEANERS 13855 MONO WY, SONORA, CA, 95370
STANISLAUS NAT FOREST STANISLAUS NAT FOREST, SONORA, CA, 95370
CHICKEN RANCH RANCHERIA OF ME-WUK INDIANS OF CALIFORNIA 16929 CHICKEN RANCH ROAD, JAMESTOWN, CA, 95327

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.