Mining Incidents

Lamonta Metal/Non-Metal

Controlled by Knife River Corporation
PRINEVILLE, Crook County, OR  ·  Intermittent
MSHA Mine ID: 3503648

Lamonta has $45K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Compliance record
MSHA citations since 2006
103
citations
17
significant & substantial
$44,705
proposed penalties
$44,705
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2006
37
inspections on record
560
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: 560 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Lamonta has $45K in proposed MSHA penalties and $0 outstanding across 1 contested dockets.

Penalty disposition
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.
$45K
proposed penalties
$45K
current assessed
$45K
paid to date
$0
outstanding
103 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2024-05-14.
Source: MSHA assessed-violations and conference/litigation data, 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
2025 Q4 425 0 0 0.0
2025 Q3 3,624 0 0 0.0
2025 Q2 4,951 0 0 0.0
2025 Q1 3,472 0 0 0.0
2024 Q4 2,682 0 0 0.0
2024 Q3 1,544 0 0 0.0
2024 Q2 1,858 2 1 1076.4
2024 Q1 1,780 0 0 0.0
Show 70 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 1,989 4 1 2011.1
2023 Q3 1,615 0 0 0.0
2023 Q2 1,281 4 0 3122.6
2023 Q1 1,269 17 7 13396.4
2022 Q4 1,499 0 0 0.0
2022 Q3 1,555 0 0 0.0
2022 Q2 1,535 3 0 1954.4
2022 Q1 1,449 9 2 6211.2
2021 Q4 1,511 0 0 0.0
2021 Q3 1,609 0 0 0.0
2021 Q2 1,590 3 0 1886.8
2021 Q1 1,521 2 0 1314.9
2020 Q4 1,468 0 0 0.0
2020 Q3 1,524 0 0 0.0
2020 Q2 1,532 0 0 0.0
2020 Q1 1,535 0 0 0.0
2019 Q4 1,579 1 0 633.3
2019 Q3 1,541 0 0 0.0
2019 Q2 1,610 5 0 3105.6
2019 Q1 1,496 0 0 0.0
2018 Q4 1,633 3 0 1837.1
2018 Q3 1,516 0 0 0.0
2018 Q2 1,722 11 3 6387.9
2018 Q1 1,656 8 0 4830.9
2017 Q4 1,509 0 0 0.0
2017 Q3 1,497 0 0 0.0
2017 Q2 1,434 0 0 0.0
2017 Q1 696 1 0 1436.8
2016 Q4 1,314 3 0 2283.1
2016 Q3 1,500 0 0 0.0
2016 Q2 1,777 3 0 1688.2
2016 Q1 2,275 2 0 879.1
2015 Q4 2,746 0 0 0.0
2015 Q3 2,811 0 0 0.0
2015 Q2 2,014 6 0 2979.1
2015 Q1 1,092 0 0 0.0
2014 Q4 1,714 4 1 2333.7
2014 Q3 1,889 3 0 1588.1
2014 Q2 1,216 0 0 0.0
2014 Q1 1,039 0 0 0.0
2013 Q4 1,131 0 0 0.0
2013 Q3 1,464 0 0 0.0
2013 Q2 1,048 1 0 954.2
2013 Q1 577 0 0 0.0
2012 Q4 1,117 0 0 0.0
2012 Q3 1,257 0 0 0.0
2012 Q2 370 0 0 0.0
2012 Q1 277 0 0 0.0
2011 Q4 1,409 0 0 0.0
2011 Q3 1,302 0 0 0.0
2011 Q2 887 0 0 0.0
2011 Q1 274 0 0 0.0
2010 Q4 911 1 0 1097.7
2010 Q3 1,280 0 0 0.0
2010 Q2 728 0 0 0.0
2010 Q1 118 0 0 0.0
2009 Q4 588 0 0 0.0
2009 Q3 736 0 0 0.0
2009 Q2 294 1 0 3401.4
2009 Q1 153 2 1 13071.9
2008 Q4 762 0 0 0.0
2008 Q3 615 0 0 0.0
2008 Q2 866 0 0 0.0
2008 Q1 810 0 0 0.0
2007 Q4 2,411 1 0 414.8
2007 Q3 2,252 0 0 0.0
2007 Q2 1,841 0 0 0.0
2007 Q1 1,621 0 0 0.0
2006 Q4 1,677 3 1 1788.9
2006 Q3 1,377 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.

For insurers, brokers, and safety consultants

The full compliance file on Lamonta

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.