UNICOI QUARRY Metal/Non-Metal

Martin Marietta Southeast Agg Operations, LLC · Surface

Controlled by Martin Marietta Materials Inc

Unicoi, Unicoi County, TN · Intermittent

MSHA Mine ID: 4002075

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Compliance record

MSHA citations since 2000

citations

significant & substantial

$4,109

proposed penalties

$4,109

paid to date

Source: MSHA violations data, updated weekly.

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Per 1M hrs
2025 Q4	0
2025 Q2	3,883	0.0
2025 Q1	4,037	0.0
2024 Q4	2,638	0.0
2022 Q1	0
2021 Q4	0
2021 Q3	0
2021 Q2	0

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

No fatalities recorded at this mine.

1 on file

May 11, 2005 TN · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS

Rinker Materials South Central, Inc. · Over-exertion in lifting objects

While lifting a bearing assembly after it had been removed from a shaker screen, strained left arm while lowering it to deck.