EPA-regulated facilities in Mendocino County, CA

There are 1,648 EPA-regulated facilities inside Mendocino County, California. The most common kinds are hazardous waste (1,215), water discharge (191), air emissions (157). 3 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 24 have a violation on record. Penalties over the last five years total $11M across 4 sites.

Open the map of Mendocino County

1,648facilities in the county

3in significant noncompliance

24with a violation on record

$11Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	1,215
Large quantity generators	25
Small quantity generators	160
Transporters	19
Chemical (RMP/TRI)	13
Superfund	8
Air emissions	157
Synthetic minor sources	3
Minor sources	2
Water discharge	191
Major permits	2
Minor permits	154
Drinking water systems	127
Greenhouse gas reporters	1
Scrap yards	5
Recycling centers	3

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.

CITY OF UKIAH WASTEWATER TREATMENT PLANT 300 PLANT RD., UKIAH, CA, 95482 Significant noncompliance
ROUND VALLEY AGENCY P. O. BOX 448, COVELO, CA, 95428 Significant noncompliance
ANCHOR BAY WWTF 46890 GETCHELL GULCH RD, ANCHOR BAY, CA, 95445 Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UPS - UKIAH 259 CHERRY ST, UKIAH, CA, 95482 $5.3M in penalties
UPS- FORT BRAGG 18101 OCEAN DRIVE, FORT BRAGG, CA, 95437 $5.3M in penalties
WILLITS WATER QUALITY CONTROL PLANT 300 N LENORE AVE, WILLITS, CA, 95490 $6k in penalties
FORT BRAGG WWTF 101 WEST CYPRESS ST, FORT BRAGG, CA, 95437 $6k in penalties

Superfund sites

REDWOOD EMPIRE CLEANERS 69 W MENDOCINO, WILLITS, CA, 95490
ABEX CORP REMCO HYDRAULICS PLT 934 MAIN STREETNA SOUTH, WILLITS, CA, 95490
LOUSIANA PACIFIC-FORT BRAGG STUDMILL 32600 HOLQUIST LANE, FORT BRAGG, CA, 95437
CALIFORNIA TSUNAMI DEBRIS POSTAL ADDRESS IS UNAVAILABLE FOR THE SITE, FORT BRAGG, CA, 95437
CROWELL PROPERTY DRUMS 3244 ALBION RIDGE ROAD, ALBION, CA, 94510
CITY OF 10,000 BUDDHISTS TALMADGE ROAD, TALMAGE, CA, 95481
COAST WOOD PRESERVING PLANT RD & TAYLOR DR, UKIAH, CA, 95482
POINT ARENA AIR FORCE STATION TOP OF EUREKA HILL RD, PT ARENA, CA, 95468

Towns in Mendocino County

Ukiah

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.