Pollution in Jefferson County, Colorado

Jefferson County contains 485 EPA-regulated facilities, 21 of which are currently flagged for significant noncompliance. The county also hosts 2 Superfund sites and 15 TRI chemical reporters. EPA has assessed $1.4M in lifetime penalties and TRI reporters disclosed roughly 436.8k lb of on-site releases. That facility count is well above the Colorado state average of 99 per county.

Superfund2NPL sites
TRI Facilities15reporters
EPA Facilities485regulated
Sig. Violators21current SNC

Superfund sites

SiteCityStatus
Air Force Plant PjksLittletonConstruction complete
Rocky Flats Plant UsdoeGoldenConstruction complete

Largest releasers

FacilityCityOn-site (lb)Status
Ball Metal Beverage Container CorporationGolden253.4kCompliant
Molson Coors Usa Llc -- Golden BreweryGolden117.3kSig. violation
Rocky Mountain Metal ContainerGolden64.8kCompliant
Terumo BctDenver968Compliant
Advanced Surface Technologies, Inc.Arvada246Penalties
LivanovaArvada99Penalties
Rocky Mountain Bottle Co - 10619 W 50thWheat Ridge19Sig. violation
Sundyne CorpArvada10Compliant
Martin Marietta - Spec AggGolden2Compliant

Significant violators

FacilityCityPenaltiesLast Inspected
Molson Coors Usa Llc -- Golden BreweryGolden$346.2k2025-08-21
Centura Health St Anthony HospitalLakewood$60.9k2024-01-30
Brook Forest InnEvergreen$59.4k2022-09-13
Labcorp LakewoodLakewood$31.3k2025-10-16
Jefferson County School District R-1Denver$25.1k2023-12-31
Rocky Mountain Bottle Co - 10619 W 50thWheat Ridge$24.6k2025-06-17
Stentech Photo Stencil, Llc - 16080 TablGolden$24.1k2024-05-29
Parfet ShopWheat Ridge$23.4k2023-04-21
A-1 Chipseal FacilityGolden$0
Hammer Enterprises - 30616 Bryant DriveEvergreen$02026-01-30
Costco Wholesale #676Arvada$02021-12-14
U.s. Dept Of Energy - NrelGolden$02025-08-21
Reverends Ridge Campground WwtfGolden$02013-07-19
Clear Creek Canyon Park: Gateway To Huntsman Gulch SegmentGolden$02025-11-05
Pinehurst Country ClubDenver$0
Hill Petroleum ArvadaArvada$0
Geneva Glen Camp Inc WwtfIndian Hills$02010-07-23
Mark Vii Equipment IncorporatedArvada$02012-02-02
Conifer Metropolitan DistrictConifer$02014-03-26
Cotter Corp Schwartzwalder MineGolden$02025-06-26
Martin Marietta Mtrls - Plant 41-246098Golden$02025-09-15