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Obyan Quarry Metal/Non-Metal

Hawaiian Rock Products · Surface

Controlled by Jerrold Clay Johnson

Garapan, Northern Islands County, MP · Active

MSHA Mine ID: 6900001

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Fatalities: 0
Total incidents: 1
Years on record: 2017
Latest incident: Aug 2017

Quarterly safety rates

Citations per million employee-hours, as reported to MSHA

Quarter	Hours worked	Citations	S&S	Per 1M hrs
2025 Q4	37,212	0	0	0.0
2025 Q3	36,465	0	0	0.0
2025 Q2	35,658	0	0	0.0
2025 Q1	40,915	0	0	0.0
2024 Q4	39,751	0	0	0.0
2024 Q3	38,137	0	0	0.0
2024 Q2	41,983	0	0	0.0
2024 Q1	40,085	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.

Reportable incidents

1 on file

2017 · 1 incident

August 21, 2017 - · Metal/Non-Metal utility man, shift tech, service/dump truck operator SLIP OR FALL OF PERSON

Hawaiian Rock Products · Fall from machine

Hand hold on dump truck for access to cab had grease or oil residue on the surface. When the employee reached for the grab bar their hand slipped off causing them to fall backwards. Employee reached out with their hand to break their fall which resulted in their hand striking the ground.