Mining Incidents

Mona: 14 MSHA citations Metal/Non-Metal

Kilgore Contracting · Surface
Controlled by Summit Materials LLC
Mona, Salt Lake County, UT  ·  Abandoned
MSHA Mine ID: 4201545

Mona has $94K 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
2
Years on record
1990–2009
Latest incident
Jan 2009
Compliance record
MSHA citations since 2009
14
citations
6
significant & substantial
$93,985
proposed penalties
$79,085
paid to date
84% of proposed penalties paid to date, a $14,900 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2009
5
inspections on record
117
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: 117 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Mona has $94K 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.
$94K
proposed penalties
$79K
current assessed
$79K
paid to date
$0
outstanding
13 assessments are final orders; 1 contested dockets.
Of $85K in penalties contested before the Commission, $70K was upheld in final decisions.
As of the most recent assessment on 2009-04-15.
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.
46.2%
significant & substantial
38.5%
high negligence or reckless
46.2%
reasonably likely or greater
84.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 7.7% low, 53.8% moderate, 30.8% high, 7.7% 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 · 7% of citations on record
  • Settled 1 · 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 1 decided S&S contests · industry: 79%
18%
Penalty reduction in decided contests
$85K proposed, $70K 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 2009-05-11.
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 2009-845M Settlement Manning 2010 $85K → $70K
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.

Mona recorded 9.40 reportable injury cases per 100 full-time workers in 2009.

Injury rate, 2009
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.
9.40
total case rate
9.40
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 2.82 and the all-US-mining average was 3.36 cases per 100 workers.
In Utah, metal and nonmetal mining averaged 2.21 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. Harper Sand & Gravel Inc 1979 to 2012
  2. Kilgore Contracting 2012 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2010 0
2009 14
2008 4
Source: MSHA quarterly employment and production, updated weekly.

Mona sits in Salt Lake County, Utah, 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.
Salt Lake County, Utah · Population 1,184,689
0.4%
Mining share of county employment
$94,658
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
2010 Q2 0 0 0
2010 Q1 0 0 0
2009 Q4 526 0 0 0.0
2009 Q3 4,662 0 0 0.0
2009 Q2 11,807 3 0 254.1
2009 Q1 4,278 11 6 2571.3
2008 Q4 1,195 0 0 0.0
2008 Q3 2,277 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2009 · 1 incident

January 31, 2009 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Harper Sand & Gravel Inc · Struck by flying object

Employee #1 was clearing frozen material from the road runner feed hopper. Still not understand the grizzly on the end of the feeder began lowering. Two employee who were just a few feet away, immediatly warned the grizzly. Both ee stated that #1 ee wouldn't respond or react 10 to 20 second. he was pinned by the grizzly. due to his injuries. the investigation is ongoing.

1990 · 1 incident

August 28, 1990 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Harper Sand & Gravel Inc · Struck by flying object

DUST BLOWING-PARTICLE ENTERED WORKERS EYE