DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Longmont, Colorado Mobile Drug & Alcohol Testing
Manufacturing · Tech Sector · I-25 FMCSA · Boulder County — DOT-compliant mobile collections at your Longmont facility.
Longmont is Boulder County's largest industrial city — home to a diverse manufacturing base including Seagate Technology (data storage), Aggregate Industries, and numerous food manufacturing operations. The US-287/I-25 corridor generates active CDL fleet activity. Longmont's location between Denver and Fort Collins in the Northern Colorado technology corridor creates consistent pre-employment testing demand for manufacturing and tech-sector employers. OnSite Employer Testing covers Boulder and Weld County, dispatching to Longmont facilities without requiring employees to leave production.
OnSite Employer Testing coordinates mobile drug testing collections at your Longmont-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.
Boulder County's Manufacturing and Technology Anchor
Longmont is Boulder County's largest industrial city — home to a diverse manufacturing base including Seagate Technology (data storage), Aggregate Industries, and numerous food manufacturing operations. The US-287/I-25 corridor generates active CDL fleet activity. Longmont's location between Denver and Fort Collins in the Northern Colorado technology corridor creates consistent pre-employment testing demand for manufacturing and tech-sector employers. OnSite Employer Testing covers Boulder and Weld County, dispatching to Longmont facilities without requiring employees to leave production.
FMCSA 49 CFR Part 382 governs CDL fleets in Boulder County. 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 Longmont
Electronics and data storage manufacturing
Electronics and data storage manufacturing — Seagate Technology. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
Aggregate and construction materials
Aggregate and construction materials. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
Food manufacturing and processing
Food manufacturing and processing. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
CDL freight
CDL freight — US-287/I-25 Boulder County corridor. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
Healthcare
Healthcare — Longmont United Hospital, UCHealth. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
Technology and SaaS companies
Technology and SaaS companies. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
Construction
Construction — Boulder County growth corridor. We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Longmont market.
Applicable RegulationsLongmont, CO
Employers in Longmont commonly coordinate testing under:
- FMCSA 49 CFR Part 382 — CDL drivers on US-287, I-25, and CO-119 serving Longmont manufacturing and distribution
- DOT Return-to-Duty & Follow-Up — SAP-supervised employees
Testing Services Available in Longmont
We coordinate the following collections for Longmont-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 Longmont
Pre-employment, Random, Reasonable Suspicion, Post-Accident — urine, oral fluid, and EBT
Manufacturing sector panels — Seagate, Aggregate Industries, food manufacturing
Colorado Marijuana Compliance — Amendment 64 does NOT affect DOT-regulated employees
Hair follicle and instant-result screening
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 cover Boulder and Broomfield as well as Longmont?
Yes. Our Northern Colorado service area covers all of Boulder County, Broomfield County, and adjacent parts of Weld County. Call (219) 315-0345 to confirm coverage.
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 Longmont and Boulder County Employers
Manufacturing, tech sector, and I-25 carriers in Boulder County — get compliant mobile collections dispatched today.