Mining Incidents

Patriot Portable Plant: 20 MSHA citations Metal/Non-Metal

Jerome, Phelps County, MO  ·  Active
MSHA Mine ID: 2301601

Patriot 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
4
Years on record
1999–2023
Latest incident
Jul 2023
Compliance record
MSHA citations since 2000
20
citations
3
significant & substantial
$2,169
proposed penalties
$2,169
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
34
inspections on record
452
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: 452 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Patriot 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
20 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-08-04.
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.
15.0%
significant & substantial
0.0%
high negligence or reckless
15.0%
reasonably likely or greater
65.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 25.0% low, 75.0% moderate, 0.0% 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: 2025-10-08
0%
of limit-tested samples over the exposure limit
16
samples
8
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg8
  • Aluminum oxide fumes2
  • Arsenic fumes2
  • Beryllium fumes2
Show the individual readings (44)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-08-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-08-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-08-26 Nuisance dust, total, <1% Qtz 0.43 10 0.04 Front-end Loader Operator
2021-08-26 Nuisance dust, total, <1% Qtz 0.57 10 0.06 Front-end Loader Operator
2006-01-25 Respirable dust, <.1mg 0 Supervisor, Co. Official
2006-01-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-01-25 Quartz, respirable, >1% Qtz 0.33 2.04 0.16 Front-end Loader Operator
2005-07-07 Arsenic fumes 0 1500 0.00 Welder, etc.
2005-07-07 Beryllium fumes 0 6 0.00 Welder, etc.
2005-07-07 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2005-07-07 Chromium, insoluble 0 3 0.00 Welder, etc.
2005-07-07 Cobalt fumes 0 300 0.00 Welder, etc.
2005-07-07 Copper fumes 6.19 300 0.02 Welder, etc.
2005-07-07 Iron oxide fumes 0.85 20 0.04 Welder, etc.
2005-07-07 Lead fumes 0 450 0.00 Welder, etc.
2005-07-07 Magnesium oxide fumes 0.1 20 0.01 Welder, etc.
2005-07-07 Manganese fumes 0.09 5 0.02 Welder, etc.
2005-07-07 Molybdenum fumes 0 20 0.00 Welder, etc.
2005-07-07 Nickel fumes 0 3 0.00 Welder, etc.
2005-07-07 Titanium dioxide fumes 0.02 20 0.00 Welder, etc.
2005-07-07 Vanadium fumes 0 50 0.00 Welder, etc.
2005-07-07 Zinc oxide fumes 0.03 10 0.00 Welder, etc.
2005-07-07 Aluminum oxide fumes 0 10 0.00 Welder, etc.
2005-07-07 Arsenic fumes 0 500 0.00 Welder, etc.
2005-07-07 Beryllium fumes 0 2 0.00 Welder, etc.
2005-07-07 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2005-07-07 Lead fumes 0 150 0.00 Welder, etc.
2005-07-07 Magnesium oxide fumes 0 10 0.00 Welder, etc.
2005-07-07 Manganese fumes 0 5 0.00 Welder, etc.
2005-07-07 Molybdenum fumes 0 10 0.00 Welder, etc.
2005-07-07 Nickel fumes 0 1 0.00 Welder, etc.
2005-07-07 Titanium dioxide fumes 0 10 0.00 Welder, etc.
2005-07-07 Vanadium fumes 0 50 0.00 Welder, etc.
2005-07-07 Zinc oxide fumes 0 5 0.00 Welder, etc.
2005-07-07 Chromium, insoluble 0 1 0.00 Welder, etc.
2005-07-07 Cobalt fumes 0 100 0.00 Welder, etc.
2005-07-07 Copper fumes 0 100 0.00 Welder, etc.
2005-07-07 Iron oxide fumes 0.05 10 0.01 Welder, etc.
2005-07-07 Nuisance dust, respirable, <1% Qtz 0.21 10 0.02 Truck Driver
2005-07-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-07-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-07-07 Aluminum oxide fumes 0.06 20 0.00 Welder, etc.
2004-08-31 Respirable dust, <.1mg 0 Front-end Loader Operator
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.

Patriot Portable Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2019.

Injury rate, 2019
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 1.94 and the all-US-mining average was 2.32 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.57 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.
Year total case rate days-away fatal
2019 * 0.00 0.00 0.000
2018 * 0.00 0.00 0.000
2005 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
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.
Ownership history
  1. Meramec Rock & Ag-Lime Company 1950 to 1991
  2. Smith Limestone Quarry 1991 to 1998
  3. Capital Quarries Company Inc 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 16
2025 11
2024 10
2023 8
2022 11
2021 8
2020 7
2019 12
2018 10
2017 6
2012 5
2009 0
2008 5
2007 0
2006 17
2005 17
2004 13
2003 12
2002 13
2001 6
2000 8
Source: MSHA quarterly employment and production, updated weekly.

Patriot Portable Plant sits in Phelps County, Missouri, where the Census mining category is 0.4% 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.
Phelps County, Missouri · Population 44,948
0.4%
Mining share of county employment
$55,427
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 8,402 0 0 0.0
2026 Q1 4,730 0 0 0.0
2025 Q4 5,277 0 0 0.0
2025 Q3 3,329 2 0 600.8
2025 Q2 5,415 0 0 0.0
2025 Q1 4,848 1 1 206.3
2024 Q4 4,098 0 0 0.0
2024 Q3 5,386 0 0 0.0
Show 69 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,004 0 0 0.0
2024 Q1 2,826 1 0 353.9
2023 Q4 3,260 0 0 0.0
2023 Q3 5,008 1 0 199.7
2023 Q2 2,592 0 0 0.0
2023 Q1 4,582 0 0 0.0
2022 Q4 4,378 0 0 0.0
2022 Q3 4,742 1 0 210.9
2022 Q2 6,451 0 0 0.0
2022 Q1 4,154 1 0 240.7
2021 Q4 4,474 0 0 0.0
2021 Q3 3,614 0 0 0.0
2021 Q2 3,737 0 0 0.0
2021 Q1 2,839 0 0 0.0
2020 Q4 2,522 0 0 0.0
2020 Q3 3,019 0 0 0.0
2020 Q2 4,148 0 0 0.0
2020 Q1 3,223 0 0 0.0
2019 Q4 4,761 0 0 0.0
2019 Q3 7,064 1 0 141.6
2019 Q2 7,303 0 0 0.0
2019 Q1 5,529 0 0 0.0
2018 Q4 4,930 0 0 0.0
2018 Q3 6,349 0 0 0.0
2018 Q2 5,962 0 0 0.0
2018 Q1 5,753 0 0 0.0
2017 Q4 5,028 0 0 0.0
2017 Q3 3,200 0 0 0.0
2017 Q2 2,716 1 0 368.2
2017 Q1 940 0 0 0.0
2012 Q1 1,081 0 0 0.0
2009 Q3 0 0 0
2009 Q2 0 0 0
2009 Q1 0 0 0
2008 Q4 1,332 0 0 0.0
2008 Q3 2,192 0 0 0.0
2008 Q2 2,479 0 0 0.0
2008 Q1 555 0 0 0.0
2007 Q3 0 0 0
2007 Q2 0 0 0
2007 Q1 0 0 0
2006 Q4 4,039 0 0 0.0
2006 Q3 4,724 1 0 211.7
2006 Q2 5,245 0 0 0.0
2006 Q1 4,525 0 0 0.0
2005 Q4 4,837 0 0 0.0
2005 Q3 6,000 0 0 0.0
2005 Q2 5,450 0 0 0.0
2005 Q1 4,891 0 0 0.0
2004 Q4 3,713 0 0 0.0
2004 Q3 3,807 0 0 0.0
2004 Q2 4,056 0 0 0.0
2004 Q1 3,120 0 0 0.0
2003 Q4 2,967 0 0 0.0
2003 Q3 3,616 2 0 553.1
2003 Q2 3,060 0 0 0.0
2003 Q1 2,834 0 0 0.0
2002 Q4 3,279 0 0 0.0
2002 Q3 4,405 2 0 454.0
2002 Q2 4,235 0 0 0.0
2002 Q1 3,477 0 0 0.0
2001 Q4 3,834 0 0 0.0
2001 Q3 4,322 2 1 462.7
2001 Q2 3,442 0 0 0.0
2001 Q1 3,784 0 0 0.0
2000 Q4 3,793 0 0 0.0
2000 Q3 4,296 0 0 0.0
2000 Q2 4,748 2 0 421.2
2000 Q1 3,824 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2023 · 1 incident

July 13, 2023 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Capital Quarries Company Inc · Struck by... (Not Elsewhere Classified)

Employee was descending off a conveyor while wearing fall protection and self-retracting lanyard. While descending the retractable whipped around striking the employee on the top of the head, causing a laceration to head that required four staples.

2004 · 2 incidents

July 26, 2004 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Capital Quarries Company Inc · Over-exertion (Not Elsewhere Classified)

Ok first was into he skid-steer cleaning up the plant, came into the parts trailer to eat lunch and hurt his back in the process of sitting down.

February 16, 2004 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Capital Quarries Company Inc · Struck by... (Not Elsewhere Classified)

WHILE CUTTING A TREE LIMB WITH A 20" BAR CHAIN SAW, EE ACCIDENTALLY CUT HIS LEFT BIG TOE, WHICH REQUIRED 7 STITCHES.

1999 · 1 incident

June 15, 1999 MO · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Capital Quarries Company Inc · Over-exertion in lifting objects

EE WAS UNLOADING FILES AND LOADED TICKET BOXES FROM BED OF PICKUP TRUCK. FILES AND BOXES WERE BEING CARRIED TO STORAGE ROOM.