Mining Incidents

Katy Portable Plant: 12 MSHA citations Metal/Non-Metal

Jefferson City, Cole County, MO  ·  Intermittent
MSHA Mine ID: 2302175

Katy Portable Plant has $1K 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
3
Years on record
2008–2024
Latest incident
Jun 2024
Compliance record
MSHA citations since 2001
12
citations
2
significant & substantial
$1,329
proposed penalties
$1,329
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
35
inspections on record
362
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: 362 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Katy Portable Plant has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
12 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-03-08.
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.
16.7%
significant & substantial
0.0%
high negligence or reckless
16.7%
reasonably likely or greater
66.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 16.7% low, 83.3% 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: 2024-08-28
0%
of limit-tested samples over the exposure limit
14
samples
3
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg11
  • Nuisance dust, respirable, <1% Qtz2
  • Quartz, respirable, >1% Qtz1
Show the individual readings (14)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-08-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-08-28 Respirable dust, <.1mg 0 Rotary Bucket Ex. Operator
2024-08-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-09-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-09-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-09-15 Respirable dust, <.1mg 0 Crusher Oper/Worker
2008-04-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2008-04-15 Respirable dust, <.1mg 0 Shovel Operator
2008-04-15 Quartz, respirable, >1% Qtz 0.19 1.21 0.16 Front-end Loader Operator
2007-07-25 Nuisance dust, respirable, <1% Qtz 0.13 10 0.01 Front-end Loader Operator
2007-07-25 Nuisance dust, respirable, <1% Qtz 0.2 10 0.02 Front-end Loader Operator
2003-03-20 Respirable dust, <.1mg 0 Complete Load-Haul-Dump
2003-03-20 Respirable dust, <.1mg 0 Truck Driver
2003-03-20 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.

Katy Portable Plant recorded 0.00 reportable injury cases per 100 full-time workers in 2007.

Injury rate, 2007
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 3.30 and the all-US-mining average was 3.77 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 3.76 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.
Ownership history
  1. Capital Quarries Company Inc 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 5
2025 3
2024 8
2023 5
2022 5
2021 4
2020 6
2019 4
2013 3
2012 4
2011 4
2010 2
2009 4
2008 9
2007 14
2006 5
2005 5
2004 8
2003 11
2002 6
2001 5
2000 7
Source: MSHA quarterly employment and production, updated weekly.

Katy Portable Plant sits in Cole County, Missouri, where the Census mining category is 0.1% 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.
Cole County, Missouri · Population 76,924
0.1%
Mining share of county employment
$73,273
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 1,744 0 0 0.0
2025 Q3 651 0 0 0.0
2025 Q2 818 0 0 0.0
2025 Q1 672 0 0 0.0
2024 Q4 2,295 0 0 0.0
2024 Q3 3,181 0 0 0.0
2024 Q2 4,152 0 0 0.0
2024 Q1 2,877 0 0 0.0
Show 65 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 2,553 0 0 0.0
2023 Q3 2,350 0 0 0.0
2023 Q2 1,385 0 0 0.0
2023 Q1 2,179 0 0 0.0
2022 Q4 1,570 0 0 0.0
2022 Q3 784 0 0 0.0
2022 Q2 2,740 0 0 0.0
2022 Q1 1,471 1 0 679.8
2021 Q4 653 0 0 0.0
2021 Q3 1,912 0 0 0.0
2021 Q2 931 0 0 0.0
2021 Q1 1,084 0 0 0.0
2020 Q4 1,994 0 0 0.0
2020 Q3 2,966 0 0 0.0
2020 Q2 2,996 0 0 0.0
2020 Q1 1,977 0 0 0.0
2019 Q4 1,958 0 0 0.0
2019 Q3 1,308 0 0 0.0
2019 Q2 1,491 2 0 1341.4
2013 Q3 530 0 0 0.0
2013 Q2 521 0 0 0.0
2012 Q1 897 0 0 0.0
2011 Q4 1,418 0 0 0.0
2011 Q3 2,276 0 0 0.0
2011 Q2 0 0 0
2010 Q4 4 0 0 0.0
2010 Q1 484 0 0 0.0
2009 Q4 1,722 1 0 580.7
2009 Q1 880 1 0 1136.4
2008 Q4 1,509 0 0 0.0
2008 Q3 767 0 0 0.0
2008 Q2 4,736 0 0 0.0
2008 Q1 4,352 0 0 0.0
2007 Q4 6,041 0 0 0.0
2007 Q3 5,780 3 1 519.0
2007 Q2 5,180 0 0 0.0
2007 Q1 3,974 0 0 0.0
2006 Q4 812 0 0 0.0
2006 Q3 734 0 0 0.0
2006 Q2 748 0 0 0.0
2006 Q1 714 0 0 0.0
2005 Q4 2,132 0 0 0.0
2005 Q3 2,352 0 0 0.0
2005 Q2 970 0 0 0.0
2005 Q1 0 0 0
2004 Q4 0 0 0
2004 Q3 3,100 0 0 0.0
2004 Q2 2,875 0 0 0.0
2004 Q1 2,227 0 0 0.0
2003 Q4 2,592 0 0 0.0
2003 Q3 2,304 0 0 0.0
2003 Q2 4,388 0 0 0.0
2003 Q1 651 1 0 1536.1
2002 Q4 824 0 0 0.0
2002 Q3 953 1 0 1049.3
2002 Q2 1,694 0 0 0.0
2002 Q1 2,491 0 0 0.0
2001 Q4 2,155 0 0 0.0
2001 Q3 2,229 0 0 0.0
2001 Q2 2,352 2 1 850.3
2001 Q1 3,526 0 0 0.0
2000 Q4 2,656 0 0 0.0
2000 Q3 4,592 0 0 0.0
2000 Q2 4,531 0 0 0.0
2000 Q1 2,809 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

3 on file

2024 · 1 incident

June 10, 2024 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Capital Quarries Company Inc · Fall to the walkway or working surface

Employee was hooking up alligator clips to the battery to fuel up the loader when employee's back foot slipped on the rubber mat that was laid down on the ground. The employee while falling down put arm out to catch self and heard a pop in shoulder. This resulted in a fracture in the shoulder socket.

2022 · 1 incident

May 13, 2022 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Capital Quarries Company Inc · Fall onto or against objects

The Employee parked the loader to work on bucket leveler. The employee grabbed the arm to the leveler and it broke off and employee fell back onto a rock.

2008 · 1 incident

October 21, 2008 MO · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor HANDLING OF MATERIALS
Capital Quarries Company Inc · Over-exertion in lifting objects

Employee was lifting a cover weighing approx. 40lbx & his back was strained.