Obyan Quarry Metal/Non-Metal

Hawaiian Rock Products · Surface

Controlled by Jerrold Clay Johnson

Garapan, Northern Islands County, MP · Active

MSHA Mine ID: 6900001

MSHA record for Obyan Quarry (mine ID 6900001). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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

Quarterly safety rates

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Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

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

Show 32 earlier quarters

Quarter	Hours worked	Citations	S&S	Per 1M hrs
2023 Q4	49,274	0	0	0.0
2023 Q3	39,618	0	0	0.0
2023 Q2	36,631	0	0	0.0
2023 Q1	36,622	0	0	0.0
2022 Q4	35,548	0	0	0.0
2022 Q3	37,778	0	0	0.0
2022 Q2	39,527	0	0	0.0
2022 Q1	43,447	0	0	0.0
2021 Q4	39,575	0	0	0.0
2021 Q3	40,381	0	0	0.0
2021 Q2	37,686	0	0	0.0
2021 Q1	33,449	0	0	0.0
2020 Q4	35,312	0	0	0.0
2020 Q3	38,516	0	0	0.0
2020 Q2	35,580	0	0	0.0
2020 Q1	48,329	0	0	0.0
2019 Q4	41,310	0	0	0.0
2019 Q3	49,288	0	0	0.0
2019 Q2	50,609	0	0	0.0
2019 Q1	47,839	0	0	0.0
2018 Q4	46,183	0	0	0.0
2018 Q3	83,209	0	0	0.0
2018 Q2	45,822	0	0	0.0
2018 Q1	46,803	0	0	0.0
2017 Q4	50,767	0	0	0.0
2017 Q3	44,446	0	0	0.0
2017 Q2	54,571	0	0	0.0
2017 Q1	59,809	0	0	0.0
2016 Q4	66,841	0	0	0.0
2016 Q3	61,597	0	0	0.0
2016 Q2	65,206	0	0	0.0
2016 Q1	42,955	0	0	0.0

No fatalities recorded at this mine.

Reportable incidents

1 on file

2017 · 1 incident

August 21, 2017 MP · 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.

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