Lake Portable Plant has $2K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
5
Years on record
2019–2026
Latest incident
Jun 2026
Compliance record
MSHA citations since 2018
10
citations
1
significant & substantial
$1,800
proposed penalties
$1,800
paid to date
100% of proposed penalties paid to date, a $0 gap.
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: 220 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Lake Portable Plant has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
10 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-02-17.
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.
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: 2024-12-05
0%
of limit-tested samples over the exposure limit
12
samples
1
limit-tested
Most sampled contaminants
Respirable dust, <.1mg9
Quartz, respirable, >1% Qtz2
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (12)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-12-05
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-12-05
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-12-05
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-12-05
Respirable dust, <.1mg
0
Truck Driver
2024-09-11
Quartz, respirable, >1% Qtz
0.18
Front-end Loader Operator
2024-09-11
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-09-11
Quartz, respirable, >1% Qtz
23.38
Complete Load-Haul-Dump
2023-08-29
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Backhoe Operator
2023-08-29
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-05
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-05
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-09-05
Respirable dust, <.1mg
0
Laborer, Bullgang
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.
Lake Portable Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2023.
Injury rate, 2023
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
Below average. The US metal and nonmetal mining average was 1.78 and the all-US-mining average was 2.10 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.20 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
11
2025
6
2024
9
2023
13
2022
6
2021
8
2020
8
2019
5
2018
3
Source: MSHA quarterly employment and production, updated weekly.
Lake Portable Plant sits in Miller County, Missouri, where the Census mining category is 0.0% 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.
Miller County, Missouri · Population 25,081
0.0%
Mining share of county employment
$55,172
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
5,116
0
0
0.0
2026 Q1
4,446
2
1
449.8
2025 Q3
668
0
0
0.0
2025 Q2
2,306
0
0
0.0
2025 Q1
4,514
0
0
0.0
2024 Q4
905
2
0
2209.9
2024 Q3
1,199
0
0
0.0
2024 Q2
5,816
0
0
0.0
Show 25 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q1
5,566
0
0
0.0
2023 Q4
6,540
0
0
0.0
2023 Q3
6,002
0
0
0.0
2023 Q2
4,562
0
0
0.0
2023 Q1
4,778
1
0
209.3
2022 Q4
3,563
0
0
0.0
2022 Q3
4,664
0
0
0.0
2022 Q2
2,928
0
0
0.0
2022 Q1
1,205
0
0
0.0
2021 Q4
2,860
1
0
349.7
2021 Q3
3,544
0
0
0.0
2021 Q2
3,212
1
0
311.3
2021 Q1
3,246
0
0
0.0
2020 Q4
3,795
0
0
0.0
2020 Q3
5,341
0
0
0.0
2020 Q2
1,850
0
0
0.0
2020 Q1
2,161
0
0
0.0
2019 Q4
1,780
0
0
0.0
2019 Q3
2,798
1
0
357.4
2019 Q2
1,363
0
0
0.0
2019 Q1
5,744
0
0
0.0
2018 Q4
1,811
0
0
0.0
2018 Q3
1,592
1
0
628.1
2018 Q2
152
0
0
0.0
2018 Q1
571
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
5 on file
2026 · 2 incidents
June 3, 2026MO · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was tracking the Trommel plant when something came out of the track and struck the employee in EE's right side causing a laceration. Employee administered first aid but that night was changing bandage & realized something was in the laceration. Went to clinic and removed 1/2" piece of metal, received one stitch.
April 21, 2026MO · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was tracking plant then began changing screens. EE felt something in EE's left eye, flushed it out but it continued to bother EE. Supervisor took EE to Urgent Care where they flushed EE's eye and issued a prescription ointment.
2022 · 1 incident
September 29, 2022MO · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
Employee was removing the holder for the laptop in loader #23.600668 when they cut their left hand on a sharp piece of material. Employee went to the clinic where they received three stitches.
2020 · 1 incident
June 27, 2020MO · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techMACHINERY
Exact date of injury is unknown. Employee was using a welder when sparks penetrated through the long sleeve of EE's right arm. Employee cleaned the arm but pain and swelling increased. Employee went to doctor on 06/27/2020 and was diagnosed with cellulitis.
2019 · 1 incident
March 7, 2019MO · Metal/Non-Metalquality control technician, laboratory technician, laboratory assistantSTRIKING OR BUMPING
Employee injured leg by blunt force trauma causing 8 stitches. While attempting to climb onto a flat bed trailer to tie down equipment, the employee struck right shin on the corner of the trailer causing the injury. EE was released to return to work with no restrictions after the stitches were administered. Follow up with physician in 7 days for stitches removal.