Chicago metro
From O’Hare-adjacent warehouses to suburban manufacturing and downtown professional offices—collections planned around traffic, gates, and shift reality.
Locations
Locations & coverage areas
OnSite Employer Testing is based in Rolling Meadows, Illinois. We support employer-directed mobile and on-site drug and alcohol testing at worksites, warehouses, transportation operations, manufacturing plants, construction job sites, and other employer locations—planned around shift timing, gate access, and realistic drive times. Use this hub with our service areas map to see where collections are practical.
Each hub below is written for HR, safety, DERs, TPAs, and operations leads who run field collections at plants, yards, and fleets—not clinic intake scripts. We tell you what is workable before you authorize tests internally.
For county-level anchors, open service areas. For program rules and common employer questions, see the FAQ or the employer drug testing FAQ.
Operational note
Collections follow how your plant or warehouse actually runs—gates, shift handoffs, and realistic drive windows—before we lock a time. If a draw cannot run cleanly on site, we say so early.
How coverage works
- Employer request. You send site addresses, DOT or non-DOT program context, and how soon people need to be seen.
- Logistics review. We review drive time, gates, shift windows, and test type against what crews can cover that day.
- Confirmation. We lock a window only once the field plan holds—no soft maybes for your supervisors.
- Collection day. Collectors complete the employer collection and custody handoff your TPA or administrator expects.
Illinois metro hubs
Chicago, Joliet / I-80 corridor, and Rockford / northern Illinois—context for warehouses, plants, yards, and blended DOT and non-DOT workforces under Illinois workplace rules.
Joliet & I-80 corridor
Heavy logistics, intermodal yards, and plant employers along I-80 and I-55 need collections that respect shift clocks—not generic clinic hours.
Rockford & northern Illinois
Manufacturing depth, stateline commuters, and regional haul patterns—testing logistics should match how your workforce actually moves.
Regional employer hubs
Midwest distribution and manufacturing belts, Texas Gulf / Houston, Southeast Florida corridors, and West Coast warehousing and port-linked freight—field notes for transportation, plant, and multi-site employers, not branch slogans.
Midwest mobile coordination
Midwest warehousing, I-55 / I-80 / I-94 freight belts, intermodal yards, and plants—employer-directed mobile and on-site DOT and non-DOT collections planned around gates, shifts, and custody discipline.
Texas Gulf & Houston region
Houston-area terminals, Gulf Coast freight, and plant sites—mobile employer collections aligned with yard access, shift clocks, DOT custody, and realistic dispatch timing.
Southeast Florida
Miami–Fort Lauderdale–West Palm logistics and employer sites—on-site and mobile workplace testing planned around traffic, gates, shift changes, and DOT vs non-DOT paperwork.
West Coast & Inland Empire
Inland Empire warehousing, LA / Long Beach port-linked freight, and multi-site West Coast rosters—employer collections planned around traffic, routing, site access, and modality discipline.
Schedule employer collections
Ready to schedule a mobile or on-site workplace collection? Send addresses and program details—we reply with what we can hold to. Urgent windows need clear authorization from your team.