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EPA-regulated facilities in Humboldt County, NV

There are 218 EPA-regulated facilities inside Humboldt County, Nevada. The most common kinds are water discharge (75), hazardous waste (64), air emissions (53). 4 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 9 have a violation on record. Penalties over the last five years total $16k across 2 sites.

Open the map of Humboldt County

218facilities in the county
4in significant noncompliance
9with a violation on record
$16kin penalties, last 5 years

By category

CategoryFacilities
Hazardous waste64
Large quantity generators7
Small quantity generators21
Chemical (RMP/TRI)14
Superfund9
Air emissions53
Major sources5
Synthetic minor sources3
Minor sources2
Water discharge75
Major permits1
Minor permits68
Drinking water systems35
Greenhouse gas reporters1
Scrap yards1

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

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.