MHD has rebranded. Same commitment to safety. New Look.

Workplace Safety & Compliance Services for the Mining Industry

PERFORMED BY FORMER FIRST RESPONDERS

Trusted in High-Risk Environments

In the mining industry, safety isn’t just policy — it’s survival. From surface operations to underground sites, your crews work in environments where hazards are real and constant. That’s where we come in. At MHD, we deliver OSHA-compliant safety services — on-site, on-schedule, and led by Safety Responders who understand what’s at stake.

Over 2,000 Satisfied Clients Including

mmi
komatsu
independence
graet lakes

Why Mine Operators Choose MHD

Our team is made up of former first responders — firefighters, paramedics, military veterans, and public safety professionals who bring real-world crisis experience to every job site. We don’t just perform services — we live the mission of protection and prevention.

material-symbols_move-location-outline-1

On-Site Services That Minimize Downtime

material-symbols_engineering-outline-1

Fully OSHA-Compliant Processes & Documentation

material-symbols_e911-emergency-outline-1

Professionally Trained Safety Responders

material-symbols_masks-outline

Adapted for Remote & High-Risk Environments

material-symbols_data-loss-prevention-outline-1

Nationwide Coverage with Local Presence

Mining-Specific Safety & Compliance Services


material-symbols_arrow-circle-right

Respirator Fit Testing

We test all respirator types — including N95, Half Face, Full Face, and SCBA — using both qualitative and quantitative OSHA-approved methods.
material-symbols_arrow-circle-right

Hearing Testing

We perform accurate, on-site hearing exams using mobile audiometers — no booth or off-site visits required.
material-symbols_arrow-circle-right

Noise & Air Exposure Assessments

Our Safety Responders evaluate real-time exposure data on your site. All reports are reviewed and certified by a CIH or Acoustical Engineer.
material-symbols_arrow-circle-right

Respirator Medical Evaluations

Required medical clearances, available online from any device — in English and Spanish.
material-symbols_arrow-circle-right

Pulmonary Function Testing (Spirometry)

Our NIOSH-certified Safety Responders conduct this lung function testing on-site, quickly and efficiently.
material-symbols_arrow-circle-right

Safety Data Sheet (SDS) Services

We create and review SDS documents to ensure full compliance with OSHA, GHS, WHMIS, REACH, and other international standards.
material-symbols_arrow-circle-right

Workplace Safety Scan

A fast, non-intrusive assessment that helps you identify potential compliance gaps and safety risks — before they become bigger problems.

What Our Clients Are Saying


“We had MHD on-site for our audio metric tests at Komatsu Milwaukee. Both Eric Hamilton and Glenn Leigh were very professional and worked with us to accommodate our employees schedules and needs. We will be grateful to have them back in the future.”

Richard Peterson

We Understand the Weight of Your Work


Your teams work hard in tough, demanding environments. That’s why our Safety Responders bring not just knowledge — but field-tested experience and a safety-first mentality. We’re calm under pressure, clear in our process, and committed to doing it right.

Tell Us How We Can Help

Get A Quote
Get A Quote