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EPA-regulated facilities in Pinal County, AZ

There are 1,142 EPA-regulated facilities inside Pinal County, Arizona. The most common kinds are water discharge (460), hazardous waste (420), air emissions (203). 7 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 44 have a violation on record. Penalties over the last five years total $5.3M across 1 site.

Open the map of Pinal County

1,142facilities in the county
7in significant noncompliance
44with a violation on record
$5.3Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste420
Treatment, storage or disposal2
Large quantity generators13
Small quantity generators142
Transporters5
Chemical (RMP/TRI)86
Superfund10
Air emissions203
Major sources21
Synthetic minor sources7
Minor sources5
Water discharge460
Major permits9
Minor permits361
Drinking water systems122
Greenhouse gas reporters15
Scrap yards8
Recycling centers3

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.

Largest penalties

Penalties assessed over the last five years.

Superfund sites

Towns in Pinal County

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.