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MAST MINE Coal

Heritage Coal & Natural Resources,LLC · Surface

Controlled by KTRV LLC

MEYERSDALE, Somerset County, PA · Temporarily Idled

MSHA Mine ID: 3610150

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Email me when a new MSHA incident is filed at MAST MINE.

Fatalities: 0
Total incidents: 2
Years on record: 2021–2024
Latest incident: Jul 2024

Compliance record

MSHA citations since 2015

250

citations

significant & substantial

$353,651

proposed penalties

$143,695

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	S&S	Per 1M hrs
2025 Q2	15,652	5	0	319.4
2025 Q1	15,940	3	1	188.2
2024 Q4	27,478	18	1	655.1
2024 Q3	19,239	10	1	519.8
2024 Q2	18,041	25	11	1385.7
2024 Q1	27,217	12	3	440.9
2023 Q4	44,581	0	0	0.0
2023 Q3	27,988	13	0	464.5

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

No fatalities recorded at this mine.

Reportable incidents

2 on file

2024 · 1 incident

July 10, 2024 PA · Coal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)

Heritage Coal & Natural Resources,LLC · Struck by... (Not Elsewhere Classified)

Mechanic cutting zip tie from radiator on D11 dozer. Stabbed self in left forearm approx. one inch deep with small utility knife when knife slipped.

2021 · 1 incident

February 19, 2021 PA · Coal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS

Heritage Coal & Natural Resources,LLC · Absorption of radiations, caustics, toxic and noxious substances

3/4" black PVC caustic line plugged. Employee turned the feed pump power off and disconnected the outlet end of the line and got sprayed with caustic soda(sodium hydroxide solution) mainly on EE's face. Personal Protective Equipment was available at the site for use and there is a sign posted at location stating "Safety equipment must be used".