EPA-regulated facilities near Sierra Madre, CA

There are 5,321 EPA-regulated facilities within 5 miles of Sierra Madre, California. The most common kinds are hazardous waste (5,174), water discharge (114), air emissions (83). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 5 have a violation on record. Penalties over the last five years total $15k across 1 site.

Open the map here

5,321facilities within 5 miles

2in significant noncompliance

5with a violation on record

$15kin penalties, last 5 years

By category

Category	Facilities
Hazardous waste	5,174
Large quantity generators	62
Small quantity generators	437
Transporters	23
Chemical (RMP/TRI)	34
Superfund	3
Air emissions	83
Major sources	6
Minor sources	5
Water discharge	114
Minor permits	86
Drinking water systems	12
Greenhouse gas reporters	1
Data centers	1
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.

SANTA ANITA BLUE ROOM 285 WEST HUNTINGTON DR, ARCADIA, CA, 91066 · 2.3 mi Significant noncompliance · $15k in penalties
PASADENA CITY COLLEGE 1570 E COLORADO BLVD, PASADENA, CA, 91106 · 4.2 mi Significant noncompliance

Superfund sites

SIERRA MADRE MAD SCIENTIST 706 WOODLAND DRIVE NORTH, SIERRA MADRE, CA, 91024 · 0.5 mi
TROTTER APARTMENTS 829 W. OLIVE AVENUE, MONROVIA, CA, 91016-3113 · 2.5 mi
SAN GABRIEL VALLEY (AREA 1) PECK RD & REAL, EL MONTE, CA, 91733 · 4.2 mi

Data centers

COGENT COMMUNICATIONS 2947 BRADLEY ST, PASADENA, CA, 91107 · 2.2 mi

County

Los Angeles County

Nearby towns

Arcadia 3 mi
Monrovia 4 mi
Temple City 5 mi
San Marino 5 mi
Pasadena 5 mi
Altadena 5 mi
El Monte 7 mi
Rosemead 7 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 Sierra Madre as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.