Mining Incidents

CMS Quarry 1 Metal/Non-Metal

Construction and Material Supply Inc · Surface
Controlled by Joeten Enterprise, Inc.
Saipan, Saipan County, MP  ·  Active
MSHA Mine ID: 6900007

MSHA record for CMS Quarry 1 (mine ID 6900007). 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
Inspection activity
MSHA inspections since 2026
1
inspections on record
2
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 2 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
  1. Construction and Material Supply Inc 2016 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2022 8
2021 8
2020 8
2019 10
2018 11
2017 10
2016 11
Source: MSHA quarterly employment and production, updated weekly.
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
2022 Q2 912 0 0 0.0
2022 Q1 438 0 0 0.0
2021 Q4 328 0 0 0.0
2021 Q3 984 0 0 0.0
2021 Q2 1,130 0 0 0.0
2021 Q1 1,086 0 0 0.0
2020 Q4 1,132 0 0 0.0
2020 Q3 932 0 0 0.0
Show 16 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2020 Q2 1,184 0 0 0.0
2020 Q1 1,588 0 0 0.0
2019 Q4 1,480 0 0 0.0
2019 Q3 1,348 0 0 0.0
2019 Q2 1,440 0 0 0.0
2018 Q4 1,402 0 0 0.0
2018 Q3 1,546 0 0 0.0
2018 Q2 1,564 0 0 0.0
2018 Q1 1,516 0 0 0.0
2017 Q4 1,472 0 0 0.0
2017 Q3 1,666 0 0 0.0
2017 Q2 1,440 0 0 0.0
2017 Q1 1,720 0 0 0.0
2016 Q4 1,440 0 0 0.0
2016 Q3 1,340 0 0 0.0
2016 Q2 910 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.