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North Valley Sand Metal/Non-Metal

Martin Marietta Materials, Inc. · Surface

Controlled by Martin Marietta Materials Inc

VALLEY, Douglas County, NE · Active

MSHA Mine ID: 2501271

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Fatalities: 0
Total incidents: 1
Years on record: 2020
Latest incident: Oct 2020

Compliance record

MSHA citations since 2010

citations

significant & substantial

$3,750

proposed penalties

$3,750

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	3,932	0	0.0
2025 Q3	4,138	0	0.0
2025 Q2	3,354	0	0.0
2025 Q1	2,297	1	435.4
2024 Q4	732	0	0.0
2024 Q3	4,599	0	0.0
2024 Q2	665	0	0.0
2024 Q1	3,882	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

1 on file

2020 · 1 incident

October 26, 2020 NE · Metal/Non-Metal barge/boat/dredge/towbarge/towboat/leach operator, riverman, deck hand SLIP OR FALL OF PERSON

Martin Marietta Materials, Inc. · Fall to the walkway or working surface

Employee was shoveling snow off the deck of the work boat, employee slipped and fell on deck. Employee was put on restricted duty on 11/02/2020 by a physician and became reportable.