EPA-regulated facilities near Simi Valley, CA

There are 2,873 EPA-regulated facilities within 5 miles of Simi Valley, California. The most common kinds are hazardous waste (2,718), water discharge (139), air emissions (97). 1 is currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 3 have a violation on record. Penalties over the last five years total $1.2M across 4 sites.

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2,873facilities within 5 miles

1in significant noncompliance

3with a violation on record

$1.2Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	2,718
Treatment, storage or disposal	2
Large quantity generators	28
Small quantity generators	135
Transporters	8
Chemical (RMP/TRI)	18
Superfund	3
Air emissions	97
Major sources	1
Synthetic minor sources	1
Minor sources	2
Water discharge	139
Major permits	1
Minor permits	132
Drinking water systems	1
Greenhouse gas reporters	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.

SIMI VALLEY WATER QUALITY CONTROL PLANT 600 W LOS ANGELES AVE, SIMI VALLEY, CA, 93065 · 4.0 mi Significant noncompliance · $195k in penalties

Largest penalties

Penalties assessed over the last five years.

UPS GROUND FREIGHT INC 91 W EASY ST, SIMI VALLEY, CA, 93065 · 3.2 mi $860k in penalties
EASY STREET INDUSTRIAL PARK EAST EASY ST & NORTH CHAIN DRIVE, SIMI VALLEY, CA, 93065 · 2.7 mi $117k in penalties
WASTE MANAGEMENT - SIMI VALLEY LANDFILL 2801 MADERA RD, SIMI VALLEY, CA, 93065 · 2.9 mi $41k in penalties

Superfund sites

SSFL: SANTA SUSANA FIELD LABORATORY 5800 WOOLSEY CANYON RD, CANOGA PARK, CA, 91304 · 1.9 mi
SIMI VALLEY MERCURY 4100 COCHRAN STREET, SIMI VALLEY, CA, 93063 · 2.1 mi
U.S. DOE ENERGY TECHNOLOGY ENGINEERING CENTER (ETEC) WOOLSEY CANYON ROAD, SIMI VALLEY, CA, 93063 · 4.0 mi

County

Ventura County

Nearby towns

Oak Park 6 mi
Moorpark 7 mi
Agoura Hills 8 mi
Thousand Oaks 9 mi
Calabasas 10 mi
Stevenson Ranch 13 mi
Fillmore 13 mi
Castaic 16 mi

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