EPA-regulated facilities near Maricopa, AZ

There are 90 EPA-regulated facilities within 5 miles of Maricopa, Arizona. The most common kinds are water discharge (35), hazardous waste (26), drinking water systems (21). 2 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 7 have a violation on record.

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90facilities within 5 miles
2in significant noncompliance
7with a violation on record
$0in penalties, last 5 years

By category

CategoryFacilities
Hazardous waste26
Small quantity generators15
Chemical (RMP/TRI)2
Air emissions11
Synthetic minor sources1
Water discharge35
Major permits1
Minor permits28
Drinking water systems21
Greenhouse gas reporters1

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.

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