EPA-regulated facilities near Altadena, CA

There are 5,646 EPA-regulated facilities within 5 miles of Altadena, California. The most common kinds are hazardous waste (5,532), air emissions (82), water discharge (61). 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 $2k across 1 site.

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5,646facilities within 5 miles

1in significant noncompliance

3with a violation on record

$2kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	5,532
Large quantity generators	55
Small quantity generators	337
Transporters	14
Chemical (RMP/TRI)	17
Superfund	3
Air emissions	82
Major sources	8
Minor sources	6
Water discharge	61
Minor permits	41
Drinking water systems	13
Greenhouse gas reporters	4
Data 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.

PASADENA CITY COLLEGE 1570 E COLORADO BLVD, PASADENA, CA, 91106 · 3.3 mi Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

PASADENA WATER & POWER CITY YARDS FACILITY 311 WEST MOUNTAIN STREET, PASADENA, CA, 91103 · 2.4 mi $2k in penalties

Superfund sites

JET PROPULSION LABORATORY (NASA) 4800 OAK GROVE DR, PASADENA, CA, 91109 · 1.9 mi
MONITOR PLATING & POLISHING 390 SOUTH PASADENA AVENUE, PASADENA, CA, 91105 · 3.8 mi
HUNTINGTON HOSPITAL 100 WEST CALIFORNIA, PASADENA, CA, 91105 · 4.0 mi

Data centers

COGENT COMMUNICATIONS 2947 BRADLEY ST, PASADENA, CA, 91107 · 3.2 mi

County

Los Angeles County

Nearby towns

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