DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Mandan, ND Mobile Drug & Alcohol Testing
I-94 corridor fleet operators · Refinery and energy infrastructure employers · Construction crews on the Bismarck-Mandan metro corridor · Healthcare and industrial workforce · Same-day dispatch available
Mandan sits on the west bank of the Missouri River directly across from Bismarck, connected by the I-94 bridge and functioning as the industrial and refining counterpart to the capital city. The Mandan Refinery - operated by Tesoro (now Marathon Petroleum) - is the only oil refinery in North Dakota, processing Bakken crude and employing a workforce of process operators, maintenance technicians, and contract maintenance crews who operate in one of the most safety-sensitive industrial environments in the state. I-94 runs directly through Mandan, routing motor carriers, tanker trucks, and heavy haul operators between the Bakken and eastern markets. The Bismarck-Mandan metro's construction activity spills heavily into Morton County, with major contractors and infrastructure projects active throughout. OnSite Employer Testing dispatches mobile collectors to Mandan refinery contractor sites, fleet yards, construction sites, and employer locations throughout Morton County.
OnSite Employer Testing coordinates mobile drug testing collections at your Mandan-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.
Mandan is Bismarck's industrial twin across the Missouri River - home to North Dakota's only oil refinery and a significant construction and freight employer base on I-94 that drives consistent DOT and non-DOT testing demand.
DOT & Non-DOT Testing Services — Mandan
We coordinate the following collections for Mandan-area employers:
- DOT urine drug testing (49 CFR Part 40) - FMCSA motor carriers on I-94 and US-6 Morton County freight corridors
- Non-DOT workplace drug testing - refinery contractor, construction, and industrial employer panels
- PHMSA-compliant drug & alcohol testing (49 CFR Part 199) - Mandan Refinery pipeline-connected operations and PHMSA-covered employer personnel
- Post-accident drug & alcohol testing - dispatched to refinery contractor sites, I-94 corridor incidents, and yards throughout Morton County
- Reasonable suspicion testing - on-site at your Mandan facility on supervisor or safety manager direction
- Random testing program collections - scheduled around refinery contractor shift rotations and freight dispatch windows
- Breath alcohol testing (BAT/SAAT) - FMCSA and PHMSA-compliant for Mandan-area regulated employer programs
- Pre-employment drug testing collections - for refinery contractor, construction, and freight employer new-hire onboarding at your site
Industries Served in Mandan
- Oil refining - Mandan Refinery (Marathon Petroleum) and contract maintenance employer workforce
- Motor carriers and tanker operators on I-94 West corridor between Bismarck and the Bakken
- Construction - Bismarck-Mandan metro infrastructure and commercial development contractors
- Energy infrastructure and pipeline-connected industrial employers in Morton County
- Healthcare and services employers in the Bismarck-Mandan metro corridor
Applicable Regulations - Mandan, ND
DOT-regulated employers in Mandan include FMCSA motor carriers (49 CFR Part 382) on I-94 and refinery-connected tanker operations. Refinery employers and their contractors may have PHMSA pipeline interface obligations (49 CFR Part 199) depending on their role in connected pipeline operations. Refinery operators and contract maintenance employers also face OSHA process safety management obligations (29 CFR 1910.119) and most maintain contractor drug-free workplace requirements exceeding the Act's minimums as a condition of site access. North Dakota's medical marijuana program does not override DOT or PHMSA testing requirements. North Dakota has no recreational cannabis law. Program design remains the employer's responsibility.
On-Site Collections in Mandan
From Mandan Refinery contractor staging to I-94 tanker freight yards to Morton County construction sites, request a quote and we will confirm dispatch timing and collection availability for your Mandan locations.
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
We are a contract maintenance company working at the Mandan Refinery - what testing program does the facility require?
Major refinery operators typically require contractors to maintain a drug-free workplace program meeting or exceeding OSHA PSM contractor safety requirements and the facility's own contractor qualification standards - requirements that generally exceed the Drug-Free Workplace Act minimums. The Mandan Refinery's specific contractor requirements are set by Marathon Petroleum's contractor management program. Consult your site contact or contractor qualification administrator for specific program requirements. We perform on-site collections at your Mandan facility or the refinery contractor staging area for any program your contract requires.
We run tanker trucks between the Mandan Refinery and Bakken crude delivery points - what DOT testing covers our drivers?
CDL tanker drivers operating qualifying CMVs transporting petroleum products are subject to FMCSA 49 CFR Part 382. Drivers with HAZMAT endorsements transporting flammable liquids are subject to enhanced random pool inclusion. We dispatch to your Mandan terminal for pre-employment, random, and post-accident collections.
We are a construction contractor in the Bismarck-Mandan metro with crews on multiple active sites - can you coordinate collections across sites in the same dispatch window?
We can cover multiple sites in the same dispatch when routing allows. At booking, provide all site addresses, donor counts at each location, and preferred time windows. We build a practical route that fits before you hold the schedule.
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 Drug Testing for Mandan's Refinery, Fleet, and Construction Employers
From Mandan Refinery contractor staging to I-94 tanker freight yards to Morton County construction sites, request a quote and we will confirm dispatch timing and collection availability for your Mandan locations.