Portable Screen Metal/Non-Metal
Noble Excavating Inc
· Surface
Controlled by
Christopher J Noble
Libby,
Lincoln County,
MT
·
Active
MSHA Mine ID: 2402402
Portable Screen has $4K in proposed MSHA penalties and $0 outstanding across 2 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 2005
34
citations
3
significant & substantial
$3,685
proposed penalties
$3,685
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
31
inspections on record
353
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: 353 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Portable Screen has $4K in proposed MSHA penalties and $0 outstanding across 2 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.$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
34 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2025-03-06.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
See also
the operator's enforcement record
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 | 809 | 0 | 0 | 0.0 |
| 2025 Q3 | 980 | 0 | 0 | 0.0 |
| 2025 Q1 | 1,224 | 1 | 0 | 817.0 |
| 2024 Q4 | 1,040 | 0 | 0 | 0.0 |
| 2024 Q3 | 1,037 | 2 | 0 | 1928.6 |
| 2024 Q2 | 1,370 | 0 | 0 | 0.0 |
| 2024 Q1 | 1,293 | 0 | 0 | 0.0 |
| 2023 Q4 | 1,241 | 0 | 0 | 0.0 |
Show 69 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q3 | 1,849 | 0 | 0 | 0.0 |
| 2023 Q2 | 2,210 | 0 | 0 | 0.0 |
| 2023 Q1 | 1,619 | 0 | 0 | 0.0 |
| 2022 Q4 | 1,246 | 0 | 0 | 0.0 |
| 2022 Q3 | 1,480 | 0 | 0 | 0.0 |
| 2022 Q2 | 1,883 | 1 | 0 | 531.1 |
| 2022 Q1 | 1,491 | 0 | 0 | 0.0 |
| 2021 Q4 | 1,250 | 0 | 0 | 0.0 |
| 2021 Q3 | 2,041 | 0 | 0 | 0.0 |
| 2021 Q2 | 583 | 0 | 0 | 0.0 |
| 2021 Q1 | 0 | 0 | 0 | |
| 2020 Q4 | 0 | 0 | 0 | |
| 2020 Q3 | 0 | 0 | 0 | |
| 2020 Q2 | 153 | 0 | 0 | 0.0 |
| 2020 Q1 | 330 | 1 | 0 | 3030.3 |
| 2019 Q4 | 92 | 0 | 0 | 0.0 |
| 2019 Q3 | 649 | 5 | 0 | 7704.2 |
| 2019 Q2 | 397 | 0 | 0 | 0.0 |
| 2019 Q1 | 0 | 0 | 0 | |
| 2018 Q4 | 0 | 0 | 0 | |
| 2018 Q3 | 323 | 1 | 0 | 3096.0 |
| 2018 Q2 | 248 | 0 | 0 | 0.0 |
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q4 | 0 | 0 | 0 | |
| 2017 Q3 | 451 | 0 | 0 | 0.0 |
| 2017 Q2 | 738 | 2 | 0 | 2710.0 |
| 2017 Q1 | 75 | 0 | 0 | 0.0 |
| 2016 Q4 | 151 | 0 | 0 | 0.0 |
| 2016 Q3 | 1,457 | 3 | 0 | 2059.0 |
| 2016 Q2 | 0 | 0 | 0 | |
| 2016 Q1 | 264 | 0 | 0 | 0.0 |
| 2015 Q4 | 325 | 0 | 0 | 0.0 |
| 2015 Q3 | 100 | 0 | 0 | 0.0 |
| 2015 Q2 | 414 | 0 | 0 | 0.0 |
| 2015 Q1 | 0 | 0 | 0 | |
| 2014 Q4 | 177 | 0 | 0 | 0.0 |
| 2014 Q3 | 0 | 0 | 0 | |
| 2014 Q2 | 0 | 0 | 0 | |
| 2014 Q1 | 285 | 0 | 0 | 0.0 |
| 2013 Q4 | 420 | 0 | 0 | 0.0 |
| 2013 Q3 | 11 | 0 | 0 | 0.0 |
| 2013 Q2 | 547 | 0 | 0 | 0.0 |
| 2013 Q1 | 153 | 0 | 0 | 0.0 |
| 2012 Q4 | 951 | 0 | 0 | 0.0 |
| 2012 Q3 | 199 | 0 | 0 | 0.0 |
| 2012 Q2 | 299 | 0 | 0 | 0.0 |
| 2012 Q1 | 32 | 1 | 0 | 31250.0 |
| 2011 Q4 | 412 | 3 | 1 | 7281.6 |
| 2011 Q3 | 1 | 0 | 0 | 0.0 |
| 2011 Q1 | 2 | 0 | 0 | 0.0 |
| 2010 Q4 | 1 | 4 | 1 | 4000000.0 |
| 2010 Q3 | 170 | 0 | 0 | 0.0 |
| 2009 Q2 | 1 | 0 | 0 | 0.0 |
| 2009 Q1 | 1 | 0 | 0 | 0.0 |
| 2008 Q4 | 1 | 0 | 0 | 0.0 |
| 2008 Q3 | 767 | 0 | 0 | 0.0 |
| 2008 Q2 | 1,925 | 0 | 0 | 0.0 |
| 2008 Q1 | 604 | 0 | 0 | 0.0 |
| 2007 Q4 | 1,005 | 0 | 0 | 0.0 |
| 2007 Q3 | 1,159 | 2 | 0 | 1725.6 |
| 2007 Q2 | 345 | 0 | 0 | 0.0 |
| 2007 Q1 | 3 | 0 | 0 | 0.0 |
| 2006 Q4 | 106 | 0 | 0 | 0.0 |
| 2006 Q3 | 365 | 0 | 0 | 0.0 |
| 2006 Q2 | 187 | 0 | 0 | 0.0 |
| 2006 Q1 | 56 | 6 | 0 | 107142.9 |
| 2005 Q4 | 17 | 1 | 0 | 58823.5 |
| 2005 Q3 | 245 | 0 | 0 | 0.0 |
| 2005 Q2 | 343 | 1 | 1 | 2915.5 |
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 Portable Screen
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.