EPA-regulated facilities near Longmont, CO

There are 1,084 EPA-regulated facilities within 5 miles of Longmont, Colorado. The most common kinds are water discharge (536), air emissions (383), hazardous waste (253). 6 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 12 have a violation on record. Penalties over the last five years total $5.7M across 7 sites.

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1,084facilities within 5 miles

6in significant noncompliance

12with a violation on record

$5.7Min penalties, last 5 years

By category

Category	Facilities
Hazardous waste	253
Large quantity generators	4
Small quantity generators	94
Chemical (RMP/TRI)	24
Air emissions	383
Major sources	2
Synthetic minor sources	39
Minor sources	315
Water discharge	536
Major permits	1
Minor permits	505
Drinking water systems	2
Data centers	1
Scrap yards	1
Recycling centers	2

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.

LCHWM LLC 1427 SANBORN PL, LONGMONT, CO, 80501 · 1.2 mi Significant noncompliance · $37k in penalties
LONGMONT BATCH PLANT 15 SOUTH FRANCIS STREET, BOULDER COUNTY, CO, 80501 · 1.1 mi Significant noncompliance
IRWIN THOMAS PIT QUAIL RD AND 119 ST, LONGMONT, CO, 00000 · 1.7 mi Significant noncompliance
AVISTA PHARMA SOLUTIONS DBA CAMBREX 2620 TRADE CENTER AVE, LONGMONT, CO, 80503 · 2.5 mi Significant noncompliance
DISTEL PIT 1587 CR 20 1/2, LONGMONT, CO, 80504 · 4.2 mi Significant noncompliance
NIWOT SANITATION DISTRICT WWTF 7395 N 95 ST, LONGMONT, CO, 80504 · 4.5 mi Significant noncompliance

Largest penalties

Penalties assessed over the last five years.

UNITED PARCEL SERVICE - LONGMONT 230 GOLDENROD CT, LONGMONT, CO, 80501 · 1.1 mi $5.3M in penalties
119 SELF STORAGE HWY 119 AND CR 25, LONGMONT, CO, 80504 · 3.7 mi $200k in penalties
MOUNTAIN BROOK PARTNERS 9100 ROGERS ROAD, LONGMONT, CO, 80501 · 2.3 mi $85k in penalties
AGGREGATE INDUSTRIES - WCR, INC. 1587 WELD COUNTY ROAD, LONGMONT, CO, 80504 · 4.1 mi $23k in penalties
CRESTONE PEAK - KUGEL 18H-H267 SENE SEC 18 T2N R67W, FIRESTONE, CO, 80504 · 3.8 mi $13k in penalties

Data centers

AMERICAN HONDA MOTORS CO. - DATA CENTER 2501 CLOVER BASIN DRIVE, LONGMONT, CO, 80503 · 2.6 mi

County

Boulder County

Nearby towns

Frederick 8 mi
Firestone 8 mi
Gunbarrel 8 mi
Erie 9 mi
Berthoud 11 mi
Lafayette 12 mi
Boulder 13 mi
Johnstown 14 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 Longmont as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.