Mining Incidents

Monahan: 20 MSHA citations Metal/Non-Metal

Controlled by Summit Materials LLC
Columbus, Colorado County, TX  ·  Abandoned
MSHA Mine ID: 4104552

Monahan has $2K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
1
Years on record
2014
Latest incident
Oct 2014
Compliance record
MSHA citations since 2007
20
citations
3
significant & substantial
$2,254
proposed penalties
$2,254
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
29
inspections on record
332
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: 332 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Monahan has $2K in proposed MSHA penalties and $0 outstanding across 1 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; 1 contested dockets.
Of $108 in penalties contested before the Commission, $0 was upheld in final decisions.
As of the most recent assessment on 2018-06-21.
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
15.0%
high negligence or reckless
15.0%
reasonably likely or greater
30.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 5.0% low, 80.0% moderate, 15.0% 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.
1 citations taken to the federal commission · 5% of citations on record
  • Vacated or withdrawn 1 · 100%
100%
Penalty reduction in decided contests
$108 proposed, $0 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 2015-08-27.
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 2015-0590 Withdrawal Lesnick 2016 $108 → $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: 2016-11-02, 9 years ago
0%
of limit-tested samples over the exposure limit
12
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg8
  • Quartz, respirable, >1% Qtz2
  • Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (12)
Date Contaminant Concentration Limit Conc / limit Occupation
2016-11-02 Respirable dust, <.1mg 0 Screen/Scalper Operator
2016-11-02 Respirable dust, <.1mg 0 Utility Man
2016-11-02 Respirable dust, <.1mg 0 Utility Man
2016-11-02 Respirable dust, <.1mg 0 Dredge/Barge Operator
2007-06-06 Unlisted Particulate, respirable, <1% Qtz 0.35 Dredge/Barge Operator
2007-06-06 Respirable dust, <.1mg 0 Utility Man
2007-06-06 Respirable dust, <.1mg 0 Washer Operator
2006-05-04 Respirable dust, <.1mg 0 Dragline Operator
2006-05-04 Quartz, respirable, >1% Qtz 0.17 0.85 0.20 Dredge/Barge Operator
2006-05-04 Quartz, respirable, >1% Qtz 0.14 0.86 0.16 Front-end Loader Operator
2006-05-04 Respirable dust, <.1mg 0 Laborer, Bullgang
2006-05-04 Unlisted Particulate, respirable, <1% Qtz 0.12 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.

Monahan recorded 0.00 reportable injury cases per 100 full-time workers in 2018.

Injury rate, 2018
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
Below average. The US metal and nonmetal mining average was 1.95 and the all-US-mining average was 2.33 cases per 100 workers.
In Texas, metal and nonmetal mining averaged 1.77 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
2018 * 0.00 0.00 0.000
2017 * 0.00 0.00 0.000
2016 * 0.00 0.00 0.000
2015 * 0.00 0.00 0.000
2014 * 4.24 0.00 0.000
2013 * 0.00 0.00 0.000
2012 * 0.00 0.00 0.000
2010 * 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. Barco Industries Inc 2005 to 2010
  2. Alleyton Resource Company LLC 2010 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2018 10
2017 10
2016 12
2015 14
2014 22
2013 20
2012 18
2011 12
2010 11
2009 13
2008 13
2007 14
2006 14
2005 13
Source: MSHA quarterly employment and production, updated weekly.

Monahan sits in Colorado County, Texas, where the Census mining category is 3.2% 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.
Colorado County, Texas · Population 20,736
3.2%
Mining share of county employment
$68,554
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
2018 Q4 2,735 0 0 0.0
2018 Q3 8,033 0 0 0.0
2018 Q2 8,083 3 1 371.1
2018 Q1 6,785 0 0 0.0
2017 Q4 5,409 3 0 554.6
2017 Q3 6,674 0 0 0.0
2017 Q2 6,445 0 0 0.0
2017 Q1 7,422 0 0 0.0
Show 44 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2016 Q4 7,732 1 0 129.3
2016 Q3 8,683 0 0 0.0
2016 Q2 8,819 0 0 0.0
2016 Q1 9,250 1 0 108.1
2015 Q4 9,600 0 0 0.0
2015 Q3 10,110 0 0 0.0
2015 Q2 10,500 0 0 0.0
2015 Q1 9,442 1 0 105.9
2014 Q4 10,080 0 0 0.0
2014 Q3 9,953 0 0 0.0
2014 Q2 13,477 0 0 0.0
2014 Q1 13,626 1 0 73.4
2013 Q4 13,385 0 0 0.0
2013 Q3 10,869 0 0 0.0
2013 Q2 11,355 0 0 0.0
2013 Q1 8,120 1 0 123.2
2012 Q4 11,718 0 0 0.0
2012 Q3 9,903 2 1 202.0
2012 Q2 11,523 0 0 0.0
2012 Q1 8,914 0 0 0.0
2011 Q4 9,461 0 0 0.0
2011 Q3 7,488 1 0 133.5
2011 Q2 799 0 0 0.0
2010 Q4 3,598 0 0 0.0
2010 Q3 3,765 0 0 0.0
2010 Q2 5,533 0 0 0.0
2010 Q1 8,116 0 0 0.0
2009 Q4 8,996 0 0 0.0
2009 Q3 9,121 0 0 0.0
2009 Q2 9,077 0 0 0.0
2009 Q1 7,326 0 0 0.0
2008 Q4 8,148 0 0 0.0
2008 Q3 7,472 0 0 0.0
2008 Q2 8,108 0 0 0.0
2008 Q1 7,083 0 0 0.0
2007 Q4 9,201 0 0 0.0
2007 Q3 8,022 0 0 0.0
2007 Q2 9,058 1 0 110.4
2007 Q1 7,781 2 0 257.0
2006 Q4 9,690 0 0 0.0
2006 Q3 8,849 0 0 0.0
2006 Q2 9,044 0 0 0.0
2006 Q1 8,061 0 0 0.0
2005 Q4 7,771 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2014 · 1 incident

October 31, 2014 TX · Metal/Non-Metal barge/boat/dredge/towbarge/towboat/leach operator, riverman, deck hand HANDLING OF MATERIALS
Alleyton Resource Company LLC · Struck against stationary object

Employee (miner with 9 years experience) was loading an empty on road diesel tank onto a truck to be removed from site. While loading the tank on the tommy gate of the truck, his hand came in contact with sharp area on the containment tank and lacerated his hand. The laceration required 5 stitches to close and employee also received a tetanus shot while at the ER.