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Hunter Stone Metal/Non-Metal

Martin Marietta Materials Southwest LLC · Surface

Controlled by Martin Marietta Materials Inc

New Braunfels, Comal County, TX · Active

MSHA Mine ID: 4105230

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Email me when a new MSHA incident is filed at Hunter Stone.

Fatalities: 0
Total incidents: 2
Years on record: 2024–2025
Latest incident: Aug 2025

Compliance record

MSHA citations since 2017

citations

significant & substantial

$2,950

proposed penalties

$2,950

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	Per 1M hrs
2025 Q4	14,639	0	0.0
2025 Q3	2,685	0	0.0
2025 Q1	3,042	0	0.0
2024 Q4	18,343	1	54.5
2024 Q3	14,640	0	0.0
2024 Q2	19,498	0	0.0
2024 Q1	4,274	5	1169.9
2023 Q4	26,896	0	0.0

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

2025 · 1 incident

August 18, 2025 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY

Martin Marietta Materials Southwest LLC · Struck by... (Not Elsewhere Classified)

Employee cutting underneath of catwalk on CAT 777 haul truck with 90 degree air die grinder cut top of left hand. Cut resulted in five stitches.

2024 · 1 incident

May 17, 2024 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)

Martin Marietta Materials Southwest LLC · Struck by... (Not Elsewhere Classified)

EE was removing housing off a pump, EE hit flange on back swing causing hammer to deflect and make contact with left thumb, which fractured it.