DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Pueblo, Colorado Mobile Drug & Alcohol Testing
EVRAZ Steel Mill · BNSF & Union Pacific Rail Hub · I-25 FMCSA · Manufacturing — DOT-compliant mobile collections at your Pueblo facility.
Pueblo is Colorado's industrial backbone — home to EVRAZ Rocky Mountain's steel mill (one of the largest in the U.S. West, producing steel rail for North American railroads), a major BNSF and Union Pacific rail junction, and one of I-25's heaviest CDL freight zones outside of Denver. The Pueblo Chemical Depot (a former Army chemical weapons storage facility) also operates nearby under federal contractor oversight. OnSite Employer Testing covers all of Pueblo County — dispatching to the EVRAZ steel mill, rail yards, and I-25 distribution centers without requiring employees to leave the property.
OnSite Employer Testing coordinates mobile drug testing collections at your Pueblo-area facility, yard, terminal, or job site. We do not operate a clinic. Review how it works or browse all locations we serve across the region.
Colorado's Steel City — Heavy Industry Demands Heavy Compliance
Pueblo is Colorado's industrial backbone — home to EVRAZ Rocky Mountain's steel mill (one of the largest in the U.S. West, producing steel rail for North American railroads), a major BNSF and Union Pacific rail junction, and one of I-25's heaviest CDL freight zones outside of Denver. The Pueblo Chemical Depot (a former Army chemical weapons storage facility) also operates nearby under federal contractor oversight. OnSite Employer Testing covers all of Pueblo County — dispatching to the EVRAZ steel mill, rail yards, and I-25 distribution centers without requiring employees to leave the property.
FRA 49 CFR Part 219 governs BNSF and Union Pacific employees at the Pueblo rail junction — one of Colorado's most significant Class I interchange points. FMCSA 49 CFR Part 382 applies to I-25 CDL fleets. Federal contractors at the Pueblo Chemical Depot are subject to Army/DoD drug-free workplace requirements. Colorado Amendment 64 does not affect DOT testing.
Program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections.
Industries Served in Pueblo
Steel manufacturing
Steel manufacturing — EVRAZ Rocky Mountain (steel rail, wire rod). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
Railroad
Railroad — BNSF and Union Pacific Pueblo junction. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
CDL freight
CDL freight — I-25 Denver-Pueblo-Trinidad corridor. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
Federal facilities
Federal facilities — Pueblo Chemical Depot contractors. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
Healthcare
Healthcare — Parkview Medical Center, St. Mary-Corwin. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
Agriculture
Agriculture — Arkansas River Valley farming and distribution. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
Construction
Construction — Pueblo metro development. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Pueblo market.
Applicable RegulationsPueblo, CO
Employers in Pueblo commonly coordinate testing under:
- FRA 49 CFR Part 219 — BNSF and Union Pacific engineers, conductors, dispatchers, and MOW employees at the Pueblo rail junction — a major interchange point for both Class I railroads
- FMCSA 49 CFR Part 382 — CDL drivers on I-25 and US-50 serving Pueblo industrial and agricultural freight
- DOT Return-to-Duty & Follow-Up — SAP-supervised employees
Testing Services Available in Pueblo
We coordinate the following collections for Pueblo-area employers:
DOT drug testing collections (FMCSA, FRA, FAA, FTA, PHMSA)
- Pre-employment drug and alcohol testing
- Reasonable suspicion and return-to-duty testing
Breath alcohol testing (BAT certified)
- Oral fluid drug testing
Mobile and on-site collections at your facility, yard, or job site
On-Site Collections in Pueblo
Pre-employment, Random, Reasonable Suspicion, Post-Accident — urine, oral fluid, and EBT
Steel manufacturing panels — EVRAZ Rocky Mountain workforce, mill contractors, and Tier 1 suppliers
Federal contractor testing — Pueblo Chemical Depot cleanup contractor support
Colorado Marijuana Compliance — Amendment 64 does NOT affect DOT-regulated employees
Non-DOT panels for healthcare and manufacturing workforces
Use our instant quote calculator to scope your collection or visit our service areas page for broader coverage context.
Questions from employers in this region
Do you serve the EVRAZ steel mill directly?
Yes. We dispatch to the EVRAZ Rocky Mountain mill facility for pre-employment, random, and post-accident collections. Mill entry coordination is arranged directly with your HR team.
Do you handle FRA testing for both BNSF and Union Pacific crews at Pueblo?
Yes. FRA 49 CFR Part 219 collections — post-accident, reasonable suspicion, and random — are available for both BNSF and UP crews at the Pueblo junction.
Core programs: Mobile & on-site drug testing, DOT drug testing, Non-DOT drug testing, Post-accident testing, Reasonable suspicion testing, Random testing programs, Breath alcohol testing. Planning: how it works, instant quote calculator, all locations. Industries: employer industries we support. Long-form answers: Employer drug testing FAQ. Quick questions: Contact us.
For how we think about regions and feasibility, see service areas.
Nationally coordinated collection support
OnSite Employer Testing is headquartered in Illinois and coordinates mobile and on-site employer testing across selected regions and employer locations—including through partner collectors when your program, timing, and geography allow. Availability depends on location, timing, test type, site access, collector availability, and scheduling needs.
Mobile Testing for Pueblo's Steel, Rail, and I-25 Industrial Corridor
EVRAZ, BNSF/UP, and I-25 carriers in Pueblo — get compliant mobile collections dispatched to your site today.