May 19, 2015
MN · Metal/Non-Metal
crusher attendant/operator, pan feeder operator/worker
SLIP OR FALL OF PERSON
Rocon Paving · Fall from machine
Man fell off conveyor 20 feet.
Portable Plant #1: 36 MSHA citations Metal/Non-Metal
Portable Plant #1 has $7K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Email me when a new MSHA incident is filed at Portable Plant #1.
- Fatalities
- 0
- Total incidents
- 2
- Years on record
- 2015
- Latest incident
- May 2015
Compliance record
MSHA citations since 2015
36
citations
11
significant & substantial
$7,334
proposed penalties
$7,334
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2015
18
inspections on record
171
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: 171 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘ
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.1
Section 107(a) orders
Most recent order: 2023-08-09.
On record since 2023.
Source: MSHA imminent-danger order records, updated weekly.
Portable Plant #1 has $7K in proposed MSHA penalties and $0 outstanding across 0 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.$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
33 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-06-26.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
Violation severity profile
ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.31.4%
significant & substantial
8.6%
high negligence or reckless
31.4%
reasonably likely or greater
62.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 20.0% low, 71.4% moderate, 8.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Health sampling
ⓘ
A sample is a point in time compliance measurement, not an individual exposure history. These figures describe MSHA sampling records and do not establish causation or personal dose.Metal and nonmetal contaminants (personal samples)
ⓘ
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2018-09-25, 7 years ago
ⓘ
Many samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.0%
of limit-tested samples over the exposure limit
2
samples
1
limit-tested
Most sampled contaminants
- Quartz, respirable, >1% Qtz1
- Respirable dust, <.1mg1
Show the individual readings (2)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2018-09-25 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2018-09-25 | Quartz, respirable, >1% Qtz | 0.19 | 0.67 | 0.28 | Crusher Oper/Worker |
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Ownership history
- Roth Construction 1980 to 2015
- Rocon Paving 2015 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
| Year | Employees |
|---|---|
| 2026 | 0 |
| 2025 | 2 |
| 2024 | 2 |
| 2023 | 2 |
| 2022 | 2 |
| 2021 | 2 |
| 2020 | 2 |
| 2019 | 2 |
| 2018 | 2 |
| 2017 | 2 |
| 2016 | 2 |
| 2015 | 2 |
Source: MSHA quarterly employment and production, updated weekly.
Portable Plant #1 sits in Aitkin County, Minnesota, where the Census mining category is 0.7% of county employment.
Local economic context
ⓘ
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.Aitkin County, Minnesota · Population 15,930
0.7%
Mining share of county employment
$59,498
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
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 |
|---|---|---|---|---|
| 2026 Q2 | 0 | 0 | 0 | |
| 2026 Q1 | 0 | 0 | 0 | |
| 2025 Q4 | 753 | 0 | 0 | 0.0 |
| 2025 Q3 | 1,905 | 0 | 0 | 0.0 |
| 2025 Q2 | 682 | 0 | 0 | 0.0 |
| 2025 Q1 | 0 | 0 | 0 | |
| 2024 Q4 | 0 | 0 | 0 | |
| 2024 Q3 | 444 | 0 | 0 | 0.0 |
Show 36 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 674 | 3 | 0 | 4451.0 |
| 2024 Q1 | 253 | 0 | 0 | 0.0 |
| 2023 Q4 | 0 | 0 | 0 | |
| 2023 Q3 | 1,117 | 8 | 4 | 7162.0 |
| 2023 Q2 | 270 | 0 | 0 | 0.0 |
| 2023 Q1 | 0 | 0 | 0 | |
| 2022 Q3 | 636 | 2 | 0 | 3144.7 |
| 2022 Q2 | 422 | 0 | 0 | 0.0 |
| 2022 Q1 | 0 | 0 | 0 | |
| 2021 Q4 | 0 | 0 | 0 | |
| 2021 Q3 | 521 | 2 | 0 | 3838.8 |
| 2021 Q2 | 144 | 0 | 0 | 0.0 |
| 2021 Q1 | 0 | 0 | 0 | |
| 2020 Q4 | 378 | 0 | 0 | 0.0 |
| 2020 Q3 | 459 | 3 | 0 | 6535.9 |
| 2020 Q2 | 798 | 0 | 0 | 0.0 |
| 2020 Q1 | 0 | 0 | 0 | |
| 2019 Q4 | 732 | 0 | 0 | 0.0 |
| 2019 Q3 | 1,334 | 3 | 2 | 2248.9 |
| 2019 Q2 | 2,627 | 0 | 0 | 0.0 |
| 2019 Q1 | 0 | 0 | 0 | |
| 2018 Q4 | 329 | 0 | 0 | 0.0 |
| 2018 Q3 | 535 | 0 | 0 | 0.0 |
| 2018 Q2 | 480 | 0 | 0 | 0.0 |
| 2018 Q1 | 0 | 0 | 0 | |
| 2017 Q4 | 1,048 | 5 | 2 | 4771.0 |
| 2017 Q3 | 1,650 | 3 | 1 | 1818.2 |
| 2017 Q2 | 1,263 | 0 | 0 | 0.0 |
| 2017 Q1 | 0 | 0 | 0 | |
| 2016 Q4 | 171 | 0 | 0 | 0.0 |
| 2016 Q3 | 654 | 1 | 0 | 1529.1 |
| 2016 Q2 | 215 | 2 | 0 | 9302.3 |
| 2016 Q1 | 0 | 0 | 0 | |
| 2015 Q4 | 0 | 0 | 0 | |
| 2015 Q3 | 163 | 0 | 0 | 0.0 |
| 2015 Q2 | 1,863 | 2 | 2 | 1073.5 |
No fatalities recorded at this mine.
Reportable incidents
2 on file2015 · 2 incidents
May 19, 2015
MN · Metal/Non-Metal
laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman
SLIP OR FALL OF PERSON
Rocon Paving · Fall from machine
Man fell off conveyor 20 Feet.