Lone Elm Quarry Metal/Non-Metal

Martin Marietta Materials, Inc. · Surface

Controlled by Martin Marietta Materials Inc

Olathe, Johnson County, KS · Intermittent

MSHA Mine ID: 1401474

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Compliance record

MSHA citations since 2002

citations

significant & substantial

$8,530

proposed penalties

$8,530

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 Q4	2,242	0	0	0.0
2025 Q3	2,789	0	0	0.0
2025 Q2	5,200	0	0	0.0
2025 Q1	2,284	0	0	0.0
2024 Q4	4,084	0	0	0.0
2024 Q3	1,651	0	0	0.0
2024 Q1	890	0	0	0.0
2023 Q4	4,301	0	0	0.0

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

No fatalities recorded at this mine.

1 on file

June 10, 2008 KS · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON

N R Hamm Quarry LLC · Over-exertion (Not Elsewhere Classified)

Employee stepped off loader and twisted ankle.