Mining Incidents

CO Crusher: 56 MSHA citations Metal/Non-Metal

Controlled by CRH PLC
Mancos, Montezuma County, CO  ·  Active
MSHA Mine ID: 0503178

CO Crusher has $8K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
10
Years on record
1993–2021
Latest incident
Sep 2021
Compliance record
MSHA citations since 2000
56
citations
12
significant & substantial
$8,151
proposed penalties
$7,788
paid to date
96% of proposed penalties paid to date, a $363 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
55
inspections on record
780
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: 780 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

CO Crusher has $8K in proposed MSHA penalties and $0 outstanding across 5 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.
$8K
proposed penalties
$8K
current assessed
$8K
paid to date
$0
outstanding
55 assessments are final orders; 5 contested dockets.
Of $7K in penalties contested before the Commission, $903 was upheld in final decisions.
As of the most recent assessment on 2025-01-22.
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.
21.8%
significant & substantial
14.5%
high negligence or reckless
21.8%
reasonably likely or greater
45.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.1% low, 76.4% moderate, 14.5% 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.
9 citations taken to the federal commission · 16% of citations on record
  • Settled 4 · 44%
  • Vacated or withdrawn 5 · 56%
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 2 decided S&S contests · industry: 79%
88%
Penalty reduction in decided contests
$7K proposed, $903 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 2018-03-01.
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
WEST 2018-0259 Withdrawal Lesnick 2018 $6K → $0
WEST 2008-235M Settlement Manning 2008 $848 → $685
WEST 2008-236M Vacate Manning 2008 $300 → $100
WEST 2018-0260 Settlement Manning 2018 $236 → $118
WEST 2016-0590 Withdrawal Manning 2016 $100 → $0
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: 2024-09-11
20%
of limit-tested samples over the exposure limit
23
samples
10
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz132 over
  • Respirable dust, <.1mg10
Show the individual readings (23)
Date Contaminant Concentration Limit Conc / limit Occupation
2001-07-24 Quartz, respirable, >1% Qtz 0.36 0.36 1.00 Crusher Oper/Worker
2001-07-24 Quartz, respirable, >1% Qtz 0.42 0.4 1.05 Laborer, Bullgang
2024-09-11 Quartz, respirable, >1% Qtz 0.13 0.67 0.19 Front-end Loader Operator
2024-09-11 Quartz, respirable, >1% Qtz 0.51 0.67 0.76 Front-end Loader Operator
2024-09-11 Quartz, respirable, >1% Qtz 0.34 0.6 0.57 Utility Man
2024-09-11 Quartz, respirable, >1% Qtz 0.32 0.51 0.63 Utility Man
2022-09-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-09-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-09-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-06-26 Quartz, respirable, >1% Qtz 0.15 Front-end Loader Operator
2019-06-26 Quartz, respirable, >1% Qtz 0.42 Crusher Oper/Worker
2019-06-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-06-26 Quartz, respirable, >1% Qtz 0.13 Front-end Loader Operator
2017-12-15 Quartz, respirable, >1% Qtz 0.42 0.47 0.89 Bobcat Operator
2017-12-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2017-12-15 Quartz, respirable, >1% Qtz 0.2 0.77 0.26 Front-end Loader Operator
2011-11-23 Respirable dust, <.1mg 0 Bulldozer Operator
2011-11-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-11-23 Respirable dust, <.1mg 0 Utility Man
2010-05-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-05-06 Quartz, respirable, >1% Qtz 0.19 0.48 0.40 Crusher Oper/Worker
2005-11-02 Quartz, respirable, >1% Qtz 0.3 0.33 0.91 Bulldozer Operator
2005-11-02 Respirable dust, <.1mg 0 Crusher Oper/Worker

Area samples (mill and shop air)

Last sampled: 2017-03-22, 9 years ago
3
samples
Show the individual readings (3)
Date Contaminant Concentration Limit Conc / limit Area sampled
2017-03-22 Respirable dust, <.1mg 0 SF ORE PROCESSSING
2016-05-17 Respirable dust, <.1mg 0 SF ACTIVE MINING
2014-08-05 Respirable dust, <.1mg 0 SF ORE PROCESSING
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.

CO Crusher recorded 9.98 reportable injury cases per 100 full-time workers in 2003.

Injury rate, 2003
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.
9.98
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 3.76 and the all-US-mining average was 4.43 cases per 100 workers.
In Colorado, metal and nonmetal mining averaged 5.53 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. Mountain Gravel & Construction Company 1978 to 1998
  2. Four Corners Materials 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 8
2025 8
2024 8
2023 8
2022 8
2021 8
2020 7
2019 7
2018 8
2017 9
2016 7
2015 8
2014 9
2013 7
2012 6
2011 9
2010 9
2009 8
2008 10
2007 10
2006 8
2005 8
2004 7
2003 10
2002 8
2001 6
2000 5
Source: MSHA quarterly employment and production, updated weekly.

CO Crusher sits in Montezuma County, Colorado, where the Census mining category is 2.5% 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.
Montezuma County, Colorado · Population 26,204
2.5%
Mining share of county employment
$63,005
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 3,716 0 0 0.0
2026 Q1 2,840 0 0 0.0
2025 Q4 4,000 0 0 0.0
2025 Q3 2,526 0 0 0.0
2025 Q2 4,217 0 0 0.0
2025 Q1 3,997 2 0 500.4
2024 Q4 4,767 0 0 0.0
2024 Q3 4,645 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 5,249 0 0 0.0
2024 Q1 4,465 0 0 0.0
2023 Q4 4,324 0 0 0.0
2023 Q3 4,637 0 0 0.0
2023 Q2 4,544 0 0 0.0
2023 Q1 3,288 0 0 0.0
2022 Q4 2,876 0 0 0.0
2022 Q3 3,845 0 0 0.0
2022 Q2 4,164 0 0 0.0
2022 Q1 1,851 0 0 0.0
2021 Q4 2,313 0 0 0.0
2021 Q3 3,789 1 0 263.9
2021 Q2 4,751 1 0 210.5
2021 Q1 1,736 1 1 576.0
2020 Q4 2,248 0 0 0.0
2020 Q3 3,756 0 0 0.0
2020 Q2 3,580 0 0 0.0
2020 Q1 2,312 0 0 0.0
2019 Q4 3,673 0 0 0.0
2019 Q3 3,428 0 0 0.0
2019 Q2 3,287 1 0 304.2
2019 Q1 1,384 0 0 0.0
2018 Q4 1,463 0 0 0.0
2018 Q3 2,767 0 0 0.0
2018 Q2 3,472 0 0 0.0
2018 Q1 2,738 1 0 365.2
2017 Q4 2,472 2 0 809.1
2017 Q3 3,447 0 0 0.0
2017 Q2 2,967 0 0 0.0
2017 Q1 2,975 1 0 336.1
2016 Q4 2,682 0 0 0.0
2016 Q3 2,719 0 0 0.0
2016 Q2 3,254 4 0 1229.3
2016 Q1 1,213 0 0 0.0
2015 Q4 6,150 0 0 0.0
2015 Q3 2,211 0 0 0.0
2015 Q2 3,369 0 0 0.0
2015 Q1 2,687 0 0 0.0
2014 Q4 2,332 2 0 857.6
2014 Q3 3,161 1 0 316.4
2014 Q2 3,256 0 0 0.0
2014 Q1 1,669 0 0 0.0
2013 Q4 720 0 0 0.0
2013 Q3 2,140 0 0 0.0
2013 Q2 3,727 1 0 268.3
2013 Q1 1,670 0 0 0.0
2012 Q4 0 0 0
2012 Q3 2,621 0 0 0.0
2012 Q2 2,662 0 0 0.0
2012 Q1 927 0 0 0.0
2011 Q4 3,668 1 0 272.6
2011 Q3 3,345 0 0 0.0
2011 Q2 2,770 0 0 0.0
2011 Q1 2,744 0 0 0.0
2010 Q4 3,054 0 0 0.0
2010 Q3 2,712 0 0 0.0
2010 Q2 2,090 1 0 478.5
2010 Q1 841 0 0 0.0
2009 Q4 1,001 0 0 0.0
2009 Q3 3,373 0 0 0.0
2009 Q2 3,101 0 0 0.0
2009 Q1 135 0 0 0.0
2008 Q4 3,489 0 0 0.0
2008 Q3 3,803 0 0 0.0
2008 Q2 3,511 0 0 0.0
2008 Q1 2,809 0 0 0.0
2007 Q4 4,340 0 0 0.0
2007 Q3 4,241 12 3 2829.5
2007 Q2 5,156 0 0 0.0
2007 Q1 3,944 0 0 0.0
2006 Q4 3,839 0 0 0.0
2006 Q3 4,523 0 0 0.0
2006 Q2 1,663 0 0 0.0
2006 Q1 1,908 0 0 0.0
2005 Q4 3,955 3 0 758.5
2005 Q3 4,749 0 0 0.0
2005 Q2 4,570 0 0 0.0
2005 Q1 2,739 1 0 365.1
2004 Q4 4,311 0 0 0.0
2004 Q3 2,760 3 2 1087.0
2004 Q2 3,838 0 0 0.0
2004 Q1 3,213 0 0 0.0
2003 Q4 5,069 0 0 0.0
2003 Q3 5,329 1 0 187.7
2003 Q2 3,464 2 1 577.4
2003 Q1 6,186 0 0 0.0
2002 Q4 5,925 0 0 0.0
2002 Q3 3,257 0 0 0.0
2002 Q2 2,899 0 0 0.0
2002 Q1 3,824 0 0 0.0
2001 Q4 3,143 0 0 0.0
2001 Q3 3,640 4 2 1098.9
2001 Q2 2,150 0 0 0.0
2001 Q1 4,375 0 0 0.0
2000 Q4 976 0 0 0.0
2000 Q3 2,472 0 0 0.0
2000 Q2 2,691 0 0 0.0
2000 Q1 2,272 10 3 4401.4
No fatalities recorded at this mine.

Reportable incidents

10 on file

2021 · 1 incident

September 8, 2021 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Four Corners Materials · Caught in, under or between a moving and a stationary object

Employee was preparing a conveyor for transport, when EE's thumb was caught in between the folding legs.

2017 · 1 incident

December 6, 2017 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Four Corners Materials · (Not Elsewhere Classified)

Miner was unloading material alone and was found unresponsive. After being on life support for one week, miner passed away from a brain aneurysm. We didn't feel that the aneurysm was a reportable event/injury but we are submitting the form now out of an abundance of caution.

2014 · 1 incident

November 11, 2014 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Four Corners Materials · Struck by... (Not Elsewhere Classified)

Employee was cutting a belt when the razor blade contacted his right thigh.

2008 · 1 incident

December 10, 2008 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Four Corners Materials · Contact with hot objects or substances

Employee was changing oil in the Jaw Feeder. When he pulled the plug, the oil splashed on to the right hand glove, soaked through the glove causing a 2nd degree burn.

2003 · 1 incident

July 17, 2003 CO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Four Corners Materials · Over-exertion in pulling or pushing objects

EE WAS PULLING ON CONTROL PANEL FOR CRUSHER. AS IT WAS LIFTED WITH A CHAIN -EE HAD TO PULL THE BOTTOM TO STAND IT UP. FELT SHARP PAIN IN RIGHT ARM (ELBOW)

2002 · 1 incident

May 8, 2002 CO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Four Corners Materials · Struck against stationary object

EMPLOYEE WAS WORKING ON THE ELECTRICAL PANEL BOX ON THE CRUSHER SPREAD. THE WIRE CABLE WAS STUCK. HE PULLED THEM TO LOOSEN THE JAM. WHEN IT CAME LOOSE. EMPLOYEE LOST HIS BALANCE AND FELL FO RWARD HITTING HIS CHIN ON THE EDGE OF THE PANEL BOX CUTTING HIS CHIN.

1996 · 1 incident

1995 · 1 incident

June 20, 1995 CO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Mountain Gravel & Construction Company · Struck by... (Not Elsewhere Classified)

EE ALLEGES THAT WHILE USING A HAMMER TO CHANGE LOADER TEETH THAT A SMALL PIECE OF METAL CAME OFF AND EMBEDDED UNDER CHIN.

1994 · 1 incident

May 12, 1994 CO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Mountain Gravel & Construction Company · Over-exertion (Not Elsewhere Classified)

EMPLOYEE ALLEDGES THAT WHILE CLIMBING DOWN OFF OF HIS LOADER THAT AS HE TURNED TO WALK THAT HE INJURED HIS RT ANKLE PLEASE NOT THIS IS A REOCCURANCE OF AN INJURY THAT HAPPENED ON DEC 21 1993 W HILE THE EMPLOYEE WAS PLAYING BASKETBALL

1993 · 1 incident