DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Manhattan, KS Mobile Drug & Alcohol Testing
Fort Riley defense contractors and Army installation employers · I-70 corridor fleet operators · Kansas State University contractor and facilities workforce · Construction crews in the Flint Hills corridor · Same-day dispatch available
Manhattan anchors Riley County on I-70 between Salina and Topeka, serving as the commercial hub for both Fort Riley and Kansas State University. Fort Riley is home to the 1st Infantry Division (the Big Red One) and is one of the largest Army installations in the country by land area, employing thousands of civilian workers and supporting an extensive contractor community covering logistics, construction, IT, maintenance, and base support services. Federal contractors at Fort Riley are subject to Drug-Free Workplace Act requirements and often additional installation access standards. Kansas State University's facilities, construction, and research contractor workforce adds non-DOT employer testing demand independent of the military. I-70 motor carriers use Manhattan as a fuel and break point between Topeka and Salina. OnSite Employer Testing dispatches mobile collectors to Manhattan defense contractor sites, fleet yards, construction projects, and employer locations throughout Riley County.
OnSite Employer Testing coordinates mobile drug testing collections at your Manhattan-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.
Manhattan is the gateway city to Fort Riley - one of the U.S. Army's largest active combat installations - creating a defense contractor employer base in Riley County with persistent federal drug-free workplace requirements.
DOT & Non-DOT Testing Services — Manhattan
We coordinate the following collections for Manhattan-area employers:
- Non-DOT workplace drug testing - Fort Riley defense contractor, base support, and IT employer panels
- DOT urine drug testing (49 CFR Part 40) - FMCSA motor carriers on I-70 and US-24 Riley County freight corridors
- Post-accident drug & alcohol testing - dispatched to contractor facilities, construction sites, and yards throughout Riley County
- Reasonable suspicion testing - on-site at your Manhattan facility on supervisor or safety officer direction
- Random testing program collections - scheduled around defense contractor shift rotations and freight dispatch windows
- Pre-employment drug testing collections - for Fort Riley contractor, KSU facilities, and freight employer new-hire onboarding at your site
- Breath alcohol testing (BAT/SAAT) - FMCSA-compliant for I-70 Riley County regulated carrier fleets
Industries Served in Manhattan
- Defense contractors and Army installation support - Fort Riley 1st Infantry Division contractor and base support employer workforce
- Motor carriers and freight on I-70 between Topeka and Salina
- Kansas State University contractor, facilities, and research employer workforce
- Commercial construction - Fort Riley base expansion and Manhattan commercial development
- Healthcare - Ascension Via Christi Manhattan and affiliated Riley County health employer networks
Applicable Regulations - Manhattan, KS
Federal contractors at Fort Riley are subject to the Drug-Free Workplace Act (41 U.S.C. Section 8102) and 48 CFR Part 223 for qualifying contracts above $100,000. Fort Riley installation access requirements may impose additional testing standards for badge issuance and base access. Motor carriers on I-70 and US-24 follow 49 CFR Part 382 (FMCSA) and 49 CFR Part 40. Kansas State University employees performing federally funded research may have drug-free workplace obligations under federal grant requirements. Kansas has no recreational or medical cannabis law. Program design and installation access compliance remain the employer's responsibility.
On-Site Collections in Manhattan
From Fort Riley contractor facilities to I-70 freight yards to Kansas State University contractor sites, request a quote and we will confirm dispatch timing and collection availability for your Riley County 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 Fort Riley base support contractor - what testing program do we need?
Federal contracts above $100,000 require a written drug-free workplace policy under the Drug-Free Workplace Act. Fort Riley installation access requirements may impose additional conditions for badge issuance. Most base support contractors implement a full program covering pre-employment, random, post-accident, and reasonable suspicion testing. Consult your contracting officer on specific installation requirements. We perform on-site collections at your Riley County facility for any program your contract requires.
We run I-70 freight carriers between Manhattan and Topeka - can you dispatch to our terminal for random collections?
Yes. Provide your terminal address, CDL driver pool size, and preferred window at booking. We confirm routing and collector availability before you finalize the draw.
Kansas has no cannabis law - does that help us manage our Fort Riley contractor employee drug policy?
Yes. Kansas employers face no state-law cannabis accommodation requirements. A positive THC result under your written policy can be acted upon consistently and without state cannabis law complications. For federal contractor employees with security clearance requirements, the federal standard adds an additional layer beyond your company policy. Policy enforcement decisions are the employer's responsibility.
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 Manhattan's Defense, Fleet, and University Contractor Employers
From Fort Riley contractor facilities to I-70 freight yards to Kansas State University contractor sites, request a quote and we will confirm dispatch timing and collection availability for your Riley County locations.