R10 Quarry Metal/Non-Metal
Hawaiian Rock Products
· Surface
Controlled by
Jerrold Clay Johnson
Yigo,
Guam County,
GU
·
Abandoned
MSHA Mine ID: 6600013
MSHA record for R10 Quarry (mine ID 6600013). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.
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- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Quarterly safety rates
ⓘ
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 | 1,025 | 0 | 0 | 0.0 |
| 2025 Q3 | 2,875 | 0 | 0 | 0.0 |
| 2025 Q2 | 2,532 | 0 | 0 | 0.0 |
| 2025 Q1 | 2,557 | 0 | 0 | 0.0 |
| 2024 Q4 | 1,012 | 0 | 0 | 0.0 |
| 2024 Q3 | 506 | 0 | 0 | 0.0 |
| 2024 Q2 | 50 | 0 | 0 | 0.0 |
| 2024 Q1 | 425 | 0 | 0 | 0.0 |
Show 27 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 3,604 | 0 | 0 | 0.0 |
| 2023 Q3 | 5,806 | 0 | 0 | 0.0 |
| 2023 Q2 | 7,248 | 0 | 0 | 0.0 |
| 2023 Q1 | 6,011 | 0 | 0 | 0.0 |
| 2022 Q4 | 8,253 | 0 | 0 | 0.0 |
| 2022 Q3 | 10,081 | 0 | 0 | 0.0 |
| 2022 Q2 | 7,280 | 0 | 0 | 0.0 |
| 2022 Q1 | 8,143 | 0 | 0 | 0.0 |
| 2021 Q4 | 7,043 | 0 | 0 | 0.0 |
| 2021 Q3 | 7,533 | 0 | 0 | 0.0 |
| 2021 Q2 | 9,195 | 0 | 0 | 0.0 |
| 2021 Q1 | 8,104 | 0 | 0 | 0.0 |
| 2020 Q4 | 6,495 | 0 | 0 | 0.0 |
| 2020 Q3 | 7,913 | 0 | 0 | 0.0 |
| 2020 Q2 | 7,856 | 0 | 0 | 0.0 |
| 2020 Q1 | 2,555 | 0 | 0 | 0.0 |
| 2019 Q4 | 578 | 0 | 0 | 0.0 |
| 2019 Q3 | 412 | 0 | 0 | 0.0 |
| 2019 Q2 | 1,150 | 0 | 0 | 0.0 |
| 2019 Q1 | 1,193 | 0 | 0 | 0.0 |
| 2018 Q4 | 1,859 | 0 | 0 | 0.0 |
| 2018 Q3 | 8,136 | 0 | 0 | 0.0 |
| 2018 Q2 | 6,785 | 0 | 0 | 0.0 |
| 2018 Q1 | 8,760 | 0 | 0 | 0.0 |
| 2017 Q4 | 9,893 | 0 | 0 | 0.0 |
| 2017 Q3 | 11,483 | 0 | 0 | 0.0 |
| 2017 Q2 | 5,063 | 0 | 0 | 0.0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.
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The full compliance file on R10 Quarry
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.