Underground Workers Face
14 Unique Hazard Types Per Shift
The Challenge
Gas detection readings recorded intermittently
MSHA requires continuous atmospheric monitoring for methane, H2S, CO, and oxygen levels. Handheld detectors alarm in real time but the paper log only gets updated every 30 to 60 minutes. The gap between detection and documentation is where citations happen.
Confined space permits lack real-time verification
Tunnel headings, cross passages, and shafts all qualify as confined spaces. Paper permits are signed at the portal but conditions change underground. Nobody re-verifies atmospheric conditions against the permit as crews advance.
Emergency evacuation drills documented after the fact
Monthly evacuation drills require documented assembly times, headcounts, and refuge chamber checks. Paper drill records are written in the office hours after the drill. Actual evacuation times and gaps are estimated from memory.
Rescue team readiness tracking is a binder check
Mine rescue teams need current certifications, equipment inspections, and training records. The binder at the portal holds photocopies of certifications that may have expired. Nobody cross-checks rescue readiness against the actual crew on shift.
The POD Advantage
Voice-logged gas readings
Speak atmospheric readings as you take them — methane PPM, H2S PPM, oxygen percentage, CO levels. POD timestamps and geolocates every reading to the exact station in the tunnel.
Live confined space verification
Confined space permits linked to real-time atmospheric data. POD flags when conditions at the heading no longer match the permit parameters so crews can evacuate or re-evaluate.
Evacuation drill tracking
Start and stop drill timers from your phone. POD captures assembly headcounts, refuge chamber status, and response times automatically. No more estimated drill records.
Rescue team readiness dashboard
Rescue team certifications, equipment inspection dates, and training status tracked against the actual crew roster each shift. POD alerts when rescue readiness drops below requirements.
Underground Safety Intelligence
“We had an H2S spike at the heading and the gas monitor alarmed, but the paper log showed the last reading was 40 minutes old. MSHA cited us for inadequate atmospheric monitoring documentation. POD would have had continuous time-stamped readings on record.”
— Safety Director, Heavy Civil Tunnel Contractor
Industry-Specific KPIs That Update Themselves
POD tracks hundreds of KPIs from a 5-minute voice report. Here are just 2 of them.
Safety Performance
Earned Value Performance
Both cost and schedule under pressure
These update in real time from a 5-minute voice report. No spreadsheets. No data entry.
Frequently Asked Questions
Keep Every Worker Safe Underground
See how POD turns underground safety monitoring into continuous, time-stamped MSHA-ready documentation.