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EPA-regulated facilities in Boulder County, CO

There are 3,537 EPA-regulated facilities inside Boulder County, Colorado. The most common kinds are water discharge (1,987), hazardous waste (934), air emissions (797). 20 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 65 have a violation on record. Penalties over the last five years total $15M across 20 sites.

Open the map of Boulder County

3,537facilities in the county
20in significant noncompliance
65with a violation on record
$15Min penalties, last 5 years

By category

CategoryFacilities
Hazardous waste934
Treatment, storage or disposal1
Large quantity generators20
Small quantity generators342
Chemical (RMP/TRI)74
Superfund15
Air emissions797
Major sources12
Synthetic minor sources50
Minor sources598
Water discharge1,987
Major permits6
Minor permits1,768
Drinking water systems114
Greenhouse gas reporters4
Data centers2
Scrap yards1
Recycling centers8

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

Data centers

Towns in Boulder 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.