Mining Incidents

Tipton Quarry: 26 MSHA citations Metal/Non-Metal

Tipton, Cooper County, MO  ·  Abandoned
MSHA Mine ID: 2301586

Tipton Quarry has $7K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
4
Years on record
1989–2014
Latest incident
May 2014
Compliance record
MSHA citations since 2000
26
citations
6
significant & substantial
$7,178
proposed penalties
$6,298
paid to date
88% of proposed penalties paid to date, a $880 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
44
inspections on record
409
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: 409 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Tipton Quarry has $7K in proposed MSHA penalties and $0 outstanding across 3 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
$6K
current assessed
$6K
paid to date
$0
outstanding
26 assessments are final orders; 3 contested dockets.
Of $5K in penalties contested before the Commission, $4K was upheld in final decisions.
As of the most recent assessment on 2023-11-15.
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.
23.1%
significant & substantial
0.0%
high negligence or reckless
23.1%
reasonably likely or greater
57.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 34.6% low, 65.4% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
4 citations taken to the federal commission · 15% of citations on record
  • Settled 4 · 100%
100%
S&S designation survived the contest
Counts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 3 decided S&S contests · industry: 79%
19%
Penalty reduction in decided contests
$5K proposed, $4K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2016-01-12.
Contested penalties
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
CENT 2004-237M Settlement Hodgdon 2004 $4K → $4K
CENT 2016-0163 Settlement McCarthy 2016 $238 → $238
CENT 2013-428M Settlement Miller 2013 $100 → $100
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2023-11-16
0%
of limit-tested samples over the exposure limit
7
samples
4
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz5
  • Respirable dust, <.1mg2
Show the individual readings (7)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-11-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-04-01 Quartz, respirable, >1% Qtz 0.43 Front-end Loader Operator
2016-09-27 Quartz, respirable, >1% Qtz 1 1.08 0.93 Crusher Oper/Worker
2016-09-27 Quartz, respirable, >1% Qtz 0.31 0.85 0.36 Truck Driver
2016-09-27 Quartz, respirable, >1% Qtz 0.41 1.89 0.22 Front-end Loader Operator
2010-06-29 Quartz, respirable, >1% Qtz 0.19 1.22 0.16 Front-end Loader Operator
2010-06-29 Respirable dust, <.1mg 0 Mechanic
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
  1. Prestage Quarries Inc 1950 to 1989
  2. Prestage Quarries Inc 1989 to 2012
  3. Mertens Construction Company, Inc. 2012 to 2018
  4. Con-Agg Companies, LLC 2018 to 2026
  5. Martin Marietta Materials, Inc. 2026 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 1
2024 1
2023 1
2022 1
2021 2
2020 2
2019 2
2018 2
2017 3
2016 5
2015 2
2014 4
2013 4
2012 5
2011 5
2010 5
2009 5
2008 5
2007 5
2006 5
2005 5
2004 5
2003 6
2002 5
2001 6
2000 6
Source: MSHA quarterly employment and production, updated weekly.

Tipton Quarry sits in Cooper 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.
Cooper County, Missouri · Population 16,835
0.1%
Mining share of county employment
$67,548
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 Q1 53 0 0 0.0
2025 Q4 573 0 0 0.0
2025 Q3 538 0 0 0.0
2025 Q2 575 0 0 0.0
2025 Q1 1,331 0 0 0.0
2024 Q4 572 0 0 0.0
2024 Q3 636 0 0 0.0
2024 Q2 677 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 573 0 0 0.0
2023 Q4 1,383 1 0 723.1
2023 Q3 592 0 0 0.0
2023 Q2 1,014 0 0 0.0
2023 Q1 509 0 0 0.0
2022 Q4 579 0 0 0.0
2022 Q3 731 1 0 1368.0
2022 Q2 541 0 0 0.0
2022 Q1 554 0 0 0.0
2021 Q4 693 1 0 1443.0
2021 Q3 1,367 0 0 0.0
2021 Q2 1,274 0 0 0.0
2021 Q1 762 0 0 0.0
2020 Q4 774 0 0 0.0
2020 Q3 874 0 0 0.0
2020 Q2 1,068 1 0 936.3
2020 Q1 823 0 0 0.0
2019 Q4 738 0 0 0.0
2019 Q3 716 0 0 0.0
2019 Q2 794 0 0 0.0
2019 Q1 683 0 0 0.0
2018 Q4 326 0 0 0.0
2018 Q3 725 0 0 0.0
2018 Q2 1,488 0 0 0.0
2018 Q1 700 0 0 0.0
2017 Q4 664 0 0 0.0
2017 Q3 631 8 2 12678.3
2017 Q2 716 0 0 0.0
2017 Q1 2,537 0 0 0.0
2016 Q4 4,095 0 0 0.0
2016 Q3 2,883 0 0 0.0
2016 Q2 1,275 0 0 0.0
2016 Q1 1,609 0 0 0.0
2015 Q4 1,596 2 2 1253.1
2015 Q3 756 0 0 0.0
2015 Q2 665 0 0 0.0
2015 Q1 657 0 0 0.0
2014 Q4 606 0 0 0.0
2014 Q3 634 0 0 0.0
2014 Q2 2,578 0 0 0.0
2014 Q1 3,080 0 0 0.0
2013 Q4 2,775 1 0 360.4
2013 Q3 1,936 0 0 0.0
2013 Q2 2,777 0 0 0.0
2013 Q1 929 1 0 1076.4
2012 Q4 1,385 0 0 0.0
2012 Q3 1,698 0 0 0.0
2012 Q2 2,191 0 0 0.0
2012 Q1 1,420 0 0 0.0
2011 Q4 1,875 1 0 533.3
2011 Q3 1,987 0 0 0.0
2011 Q2 2,250 0 0 0.0
2011 Q1 1,142 0 0 0.0
2010 Q4 1,990 1 0 502.5
2010 Q3 2,302 0 0 0.0
2010 Q2 2,230 5 1 2242.2
2010 Q1 1,470 0 0 0.0
2009 Q4 1,689 0 0 0.0
2009 Q3 2,042 0 0 0.0
2009 Q2 1,760 0 0 0.0
2009 Q1 1,457 0 0 0.0
2008 Q4 1,979 1 0 505.3
2008 Q3 2,146 0 0 0.0
2008 Q2 2,318 0 0 0.0
2008 Q1 1,372 0 0 0.0
2007 Q4 1,638 0 0 0.0
2007 Q3 1,791 0 0 0.0
2007 Q2 2,657 0 0 0.0
2007 Q1 1,812 0 0 0.0
2006 Q4 1,809 0 0 0.0
2006 Q3 2,075 0 0 0.0
2006 Q2 2,355 0 0 0.0
2006 Q1 2,146 0 0 0.0
2005 Q4 2,277 0 0 0.0
2005 Q3 2,261 0 0 0.0
2005 Q2 2,567 0 0 0.0
2005 Q1 1,874 0 0 0.0
2004 Q4 2,064 0 0 0.0
2004 Q3 2,266 0 0 0.0
2004 Q2 2,468 0 0 0.0
2004 Q1 2,350 0 0 0.0
2003 Q4 2,010 0 0 0.0
2003 Q3 2,449 0 0 0.0
2003 Q2 2,712 0 0 0.0
2003 Q1 1,578 1 1 633.7
2002 Q4 2,271 0 0 0.0
2002 Q3 2,040 0 0 0.0
2002 Q2 2,004 0 0 0.0
2002 Q1 1,361 0 0 0.0
2001 Q4 2,164 0 0 0.0
2001 Q3 2,702 0 0 0.0
2001 Q2 2,819 0 0 0.0
2001 Q1 1,626 0 0 0.0
2000 Q4 1,735 0 0 0.0
2000 Q3 2,385 1 0 419.3
2000 Q2 2,672 0 0 0.0
2000 Q1 1,983 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2014 · 1 incident

2003 · 1 incident

March 13, 2003 MO · Metal/Non-Metal mine manager, mine foreman, mine owner MACHINERY
Prestage Quarries Inc · Caught in, under or between two or more moving objects

EE WAS DRILLING WITH AN AIR TRACK DRILL, DURING THE PROCESS OF OPERATION HE WAS CHANGING DRILL STEEL AND SOMEHOW HIS RIGHT HAND GOT CAUGHT BETWEEN A SPROCKET & ROLLER CHAIN. EE CANNOT RECALL HOW OR WHY HIS HAND GOT NEAR THE SPROCKET. EE'S RIGHT HAND WAS SO SEVERLY INJURED THAT THE DR.'S HAD NO CHOICE BUT TO AMPUTATE ABOVE THE RIGHT WRIST.

2002 · 1 incident

June 7, 2002 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Prestage Quarries Inc · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS HELPING OPEN THE DOOR TO THE HAMMERMILL. WHEN SECURING THE DOOR HE GOT HIS FINGERS CAUGHT BETWEEN THE CHAIN AND THE DOOR.

1989 · 1 incident

August 23, 1989 MO · Metal/Non-Metal superintendent HANDTOOLS (NONPOWERED)
Prestage Quarries Inc · Fall from machine

I NAME WAS TIGHTENING A CAPSCREW ON A HOIST OF A DUMP TRUCK THE CAP BROKE LOOSE FROM THE HOIST SPRAYING HIM WITH HYD OIL THIS CAUSED HIM TO FALL AND HIT THE FUEL TANK OF THE TRUCK AND THE GROU ND WE FOUND OUT THAT THE TREADS ON THE HOIST GOT STRIPPED AND THATS WHAT CAUSED ACCIDENT