EPA-regulated facilities in Lake County, CA

There are 931 EPA-regulated facilities inside Lake County, California. The most common kinds are hazardous waste (708), drinking water systems (88), air emissions (77). None is in significant noncompliance, but 14 have a violation on record. Penalties over the last five years total $5.3M across 1 site.

Open the map of Lake County

931facilities in the county

0in significant noncompliance

14with a violation on record

$5.3Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	708
Treatment, storage or disposal	1
Large quantity generators	9
Small quantity generators	71
Transporters	17
Chemical (RMP/TRI)	4
Superfund	10
Air emissions	77
Major sources	1
Minor sources	1
Water discharge	67
Minor permits	50
Drinking water systems	88
Greenhouse gas reporters	1
Recycling centers	1

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

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE 966 PARALLEL DR, LAKEPORT, CA, 95453 $5.3M in penalties

Superfund sites

SULPHUR BANK MERCURY MINE SULPHUR BANK ROAD, CLEARLAKE OAKS, CA, 95422
CLEARLAKE MERCURY 15879 32ND STREET, CLEARLAKE, CA, 95422
ABBOTT/TURKEY RUN MINE HIGHWAY 200, WILLIAMS, CA, 95987
USCG LORAN C STA MIDDLETOWN LORAN C STA, MIDDLETOWN, CA, 95461
ANDERSON SPRINGS MERCURY SITE 11240 ANDERSON SPRINGS ROAD, MIDDLETOWN, CA, 94561
RED ELEPHANT MINE 27697 MORGAN VALLEY, MIDDLETOWN, CA, 95461
JOYCE MINE APPROX. 14.5 MILES SE OF MIDDLETOWN, MIDDLETOWN, CA, 95461
BULLION MINE APPROX. 3.4 MILES SOUTH OF MIDDLETOWN, MIDDLETOWN, CA, 95461
MIRABEL MINE APPROX. 7 MILES SE OF MIDDLETOWN, MIDDLETOWN, CA, 95461
PLYMOUTH MINE APPROX. 10 MILES SE OF MIDDLETOWN, MIDDLETOWN, CA, 95461

Towns in Lake County

Clearlake

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.