DOT-COMPLIANT · ON-SITE EMPLOYER DRUG TESTING
Mobile Drug & Alcohol Testing in Washington, Pennsylvania
On-site DOT-compliant collections for Southwest Pennsylvania's dense Marcellus and Utica shale PHMSA gathering pipeline network — MarkWest Energy, EQT Corporation, and CNX Gas — plus Consol Energy CDL coal and gas operations, and I-79/I-70 logistics corridor carriers throughout Washington County.
On-site DOT-compliant collections for Southwest Pennsylvania's dense Marcellus and Utica shale PHMSA gathering pipeline network — MarkWest Energy, EQT Corporation, and CNX Gas — plus Consol Energy CDL coal and gas operations, and I-79/I-70 logistics corridor carriers throughout Washington County. Washington anchors oil & gas — marcellus/utica shale (phmsa/fmcsa), gas processing & midstream (phmsa), coal & gas production (fmcsa) employer demand — including MarkWest Energy (Marathon Petroleum) — Marcellus/Utica gas processing PHMSA SW Pennsylvania; EQT Corporation — largest US natural gas producer Marcellus PHMSA SW Pennsylvania; CNX Gas / CONSOL Energy — Marcellus shale E&P PHMSA and coal CDL Washington County; Halliburton / SLB SW Pennsylvania — Marcellus oilfield service CDL equipment fleet FMCSA, and related operators across Pennsylvania. For safety-sensitive CDL drivers, pipeline workers, railroad crews, defense contractors, and aviation employees who cannot leave a shift for a clinic visit, mobile collection keeps operations staffed while meeting federal custody requirements.
OnSite Employer Testing coordinates mobile drug testing collections at your Washington-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.
Why Washington Employers Need Mobile Testing
MarkWest Energy PHMSA gas processing and gathering pipeline operator collections at SW Pennsylvania facilities
EQT Corporation Marcellus shale PHMSA gathering pipeline operator on-site testing throughout Washington and Greene counties
program design and compliance obligations remain your responsibility under applicable law — we coordinate the collections
Industries We Serve in Washington
MarkWest Energy (Marathon Petroleum) — Marcellus/Utica gas processing PHMSA...
MarkWest Energy (Marathon Petroleum) — Marcellus/Utica gas processing PHMSA SW Pennsylvania (PHMSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
EQT Corporation — largest US natural gas producer Marcellus PHMSA SW Pennsy...
EQT Corporation — largest US natural gas producer Marcellus PHMSA SW Pennsylvania (PHMSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
CNX Gas / CONSOL Energy — Marcellus shale E&P PHMSA and coal CDL Washington...
CNX Gas / CONSOL Energy — Marcellus shale E&P PHMSA and coal CDL Washington County (PHMSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
Halliburton / SLB SW Pennsylvania — Marcellus oilfield service CDL equipmen...
Halliburton / SLB SW Pennsylvania — Marcellus oilfield service CDL equipment fleet FMCSA (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
Peoples Natural Gas (Equitrans Midstream) — PHMSA gas gathering SW Pennsylv...
Peoples Natural Gas (Equitrans Midstream) — PHMSA gas gathering SW Pennsylvania (PHMSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
PENNDOT District 12 — I-79/I-70/I-376 SW PA construction CDL contractor fleets
PENNDOT District 12 — I-79/I-70/I-376 SW PA construction CDL contractor fleets (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
I-79/I-70 corridor carriers — LTL/truckload CDL terminal fleets FMCSA Washi...
I-79/I-70 corridor carriers — LTL/truckload CDL terminal fleets FMCSA Washington County (FMCSA-regulated or employer-directed programs where applicable). We coordinate on-site collections for pre-employment, random, post-accident, and reasonable suspicion events at employer facilities throughout the Washington market.
Applicable Regulations
Employers in Washington commonly coordinate testing under:
- 49 CFR Part 40 — DOT collection and laboratory procedures
- 49 CFR Part 199 — PHMSA MarkWest, EQT, CNX, and Peoples Gas gathering and processing pipeline operators
- 49 CFR Part 382 — FMCSA CDL oilfield service, coal, and logistics carrier fleets
- Pennsylvania Drug and Alcohol Abuse Control Act — employer drug-free workplace program framework
Testing Services Available in Washington
We coordinate the following collections for Washington-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 Washington
CNX Gas PHMSA pipeline and Consol Energy coal CDL fleet testing throughout the SW Pennsylvania producing region
Peoples Natural Gas / Equitrans PHMSA gathering and distribution field crew collections
Halliburton and SLB Marcellus oilfield service CDL fleet pre-employment and random testing
I-79/I-70 corridor CDL carrier terminal and distribution yard testing
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
MarkWest operates major gas processing plants in SW Pennsylvania — what PHMSA testing applies?
MarkWest Energy's gas processing facilities and gathering pipeline systems in Southwest Pennsylvania are subject to PHMSA 49 CFR Part 199 anti-drug and alcohol misuse prevention requirements for covered-function pipeline employees. We coordinate PHMSA-compliant on-site collections at MarkWest processing facilities and contractor staging yards throughout Washington, Greene, and Westmoreland counties.
SW Pennsylvania has EQT, CNX, MarkWest, and Peoples all operating PHMSA systems — can you manage all of them?
Yes. We maintain separate PHMSA Part 199 compliant programs for each pipeline operator employer in SW Pennsylvania — EQT, CNX, MarkWest, and Peoples/Equitrans — with distinct chain-of-custody documentation and random pool management for each employer's covered-function workforce.
Consol Energy operates both coal mines and Marcellus gas — do CDL coal haul drivers need FMCSA testing?
CDL operators hauling coal in commercial motor vehicles over 26,001 lbs in interstate commerce are subject to FMCSA Part 382 requirements. Consol's PHMSA-covered Marcellus gas pipeline employees are separately subject to 49 CFR Part 199. We coordinate both FMCSA and PHMSA collections for Consol Energy contractor employers.
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.
Scope collections for your Washington-area operation
Share your facility address, expected donor count, test reason, and DOT or non-DOT status — we confirm what is workable and send a written proposal.