Pollution in Adams County, Colorado

Adams County contains 755 EPA-regulated facilities, 28 of which are currently flagged for significant noncompliance. The county also hosts 2 Superfund sites and 53 TRI chemical reporters. EPA has assessed $10.0M in lifetime penalties and TRI reporters disclosed roughly 1.3M lb of on-site releases. That facility count is well above the Colorado state average of 99 per county.

Superfund2NPL sites
TRI Facilities53reporters
EPA Facilities755regulated
Sig. Violators28current SNC

Superfund sites

SiteCityStatus
Broderick Wood ProductsDenverConstruction complete
Rocky Mountain Arsenal UsarmyAdams CountyCleanup underway

Largest releasers

FacilityCityOn-site (lb)Status
Clean Harbors Deer Trail LlcDeer Trail1.1MPenalties
Suncor Commerce City Refinery - East PlantCommerce City137.3kSig. violation
Central Products CompanyBrighton22.2kCompliant
Acpi Wood Products, LlcAurora20.4kCompliant
Colorado Paint CoAurora14.0kCompliant
Master Builders Solutions Construction Systems Us LlcBrighton5.2kCompliant
Sashco, Inc.Denver3.9kCompliant
Univar Solutions Usa IncDenver3.6kCompliant
Phillips 66 - Denver TerminalCommerce City3.5kPenalties
Veolia Es Technical Solutions Llc/ Onyx Env Services CoHenderson2.5kCompliant
E J Painting & Fiberglass IncBrighton2.4kCompliant
Wattenberg Gas Plant/ Anadarko Dj Gas Processing LlcAurora2.1kCompliant
N.a. Galvanizing Co - 4400 E 61st AveCommerce City1.7kCompliant
B&b Blending LlcDenver1.1kCompliant
Holcim-Wcr Inc - Commerce City ReadymixCommerce City514Compliant
Birko Corp - Chemical Blending PlantHenderson483Compliant
Aggregate Industries Wcr Inc - Brighton Ready MixBrighton256Compliant
Advanced Circuits Aurora PlantAurora250Compliant
Owens Corning - Denver Roofing PlantDenver Area4Compliant
Lafarge Gordon AsphaltDenver1Compliant
Martin Marietta - Monaghan AsphaltAurora1Compliant
Quikrete - Denver, Co PlantDenver1Compliant

Significant violators

FacilityCityPenaltiesLast Inspected
Suncor Commerce City Refinery - East PlantCommerce City$2.3M2025-12-11
Apollo SciencesAurora$40.0k2025-02-18
Reconserve Of ColoradoDenver$37.5k2025-05-20
Swarco Colorado Paint LlcAurora$31.1k2025-05-28
Colorado Wilbert Vault Co - 4985 LocustCommerce City$02017-03-02
Denver Expansion ProjectWatkins$0
Heibar ManufacturingDenver$0
Westerly Creek At Stanley MarketplaceAurora$02025-08-28
Parterre Roadway ImprovementsThornton$0
Front Range AirportWatkins$02023-12-03
120th PitHenderson$02013-02-13
Thornton Water Project Segment AThornton$02025-02-13
Galambs Mobile Home And Rv Park-Chlorinator For WellsWatkins$0
Cooper LightingAurora$02026-02-24
SingletreeHenderson$0
168th To 136th Twp (2025)Thornton$0
Thornburg Family Limited Partnership LtdBennett$02025-09-24
Allied Recycled AggregatesCommerce Ctiy$0
Rocky Mountain Arsenal UsarmyCommerce City$02024-12-13
48forty Solutions LlcHenderson$0
Tracking Pads LlcAurora$0
Segment Number 8 TwpThornton$02025-03-13
Segment Number 4 Thornton Water ProjectThornton$0
SingletreeHenderson$0
Reverse Osmosis WtpBrighton$02022-03-23
Murphy Express Aurora (32nd & Airport) (Jennifer Hilburn)Aurora$02024-07-19
Todd Creek Farms Metro Dist #1Unk$02023-06-23
Big Dry Creek WwtpWestminster$02023-11-16