Mining Incidents

TRC Mine: 10 MSHA citations Metal/Non-Metal

Red Cliff Mining Inc. · Underground
Controlled by John L Byars
Emery, Emery County, UT  ·  Abandoned
MSHA Mine ID: 4202340

TRC Mine has $931 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
1
Years on record
2005
Latest incident
Jun 2005
Compliance record
MSHA citations since 2004
10
citations
1
significant & substantial
$931
proposed penalties
$931
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2002
36
inspections on record
601
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: 601 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

TRC Mine has $931 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.
$931
proposed penalties
$931
current assessed
$931
paid to date
$0
outstanding
10 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-11-16.
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.
10.0%
significant & substantial
0.0%
high negligence or reckless
10.0%
reasonably likely or greater
40.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 10.0% low, 90.0% 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: 2020-11-23, 5 years ago
11%
of limit-tested samples over the exposure limit
10
samples
9
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz41 over
  • Diesel particulate (total carbon)4
  • Diesel Particulate Material2
Show the individual readings (18)
Date Contaminant Concentration Limit Conc / limit Occupation
2006-07-18 Quartz, respirable, >1% Qtz 1.45 0.83 1.75 Front-end Loader Operator
2020-11-23 TC @ 160 63 160 0.39 Mucking Mach. Operator
2020-11-23 TC from EC @ 160 0 160 0.00 Mucking Mach. Operator
2020-11-23 EC @ 160 66 160 0.41 Mucking Mach. Operator
2020-11-23 TC @ 160 83 160 0.52 Mucking Mach. Operator
2020-11-23 TC from EC @ 160 0 160 0.00 Mucking Mach. Operator
2020-11-23 EC @ 160 46 160 0.29 Mucking Mach. Operator
2019-03-26 EC @ 160 77 160 0.48 Cleanup Man
2019-03-26 TC @ 160 91 160 0.57 Cleanup Man
2019-03-26 TC from EC @ 160 0 160 0.00 Bobcat Operator
2019-03-26 EC @ 160 71 160 0.44 Bobcat Operator
2019-03-26 TC @ 160 86 160 0.54 Bobcat Operator
2019-03-26 Quartz, respirable, >1% Qtz 0.4 1.03 0.39 Cleanup Man
2019-03-26 Quartz, respirable, >1% Qtz 0.3 Bobcat Operator
2019-03-26 TC from EC @ 160 0 160 0.00 Cleanup Man
2006-10-19 Quartz, respirable, >1% Qtz 0.31 0.68 0.46 Front-end Loader Operator
2006-07-18 Diesel Particulate Material 56.75 308 0.18 Front-end Loader Operator
2006-07-18 Diesel Particulate Material 25.42 308 0.08 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.
Ownership history
  1. Red Cliff Mining Inc. 2002 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 0
2025 0
2024 0
2023 0
2022 1
2021 1
2020 2
2019 2
2011 2
2010 3
2009 2
2008 1
2007 3
2006 3
2005 3
2004 2
2003 2
2002 2
Source: MSHA quarterly employment and production, updated weekly.

TRC Mine sits in Emery County, Utah, where the Census mining category is 7.5% 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.
Emery County, Utah · Population 9,968
7.5%
Mining share of county employment
$69,956
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 0 0 0
2026 Q1 0 0 0
2025 Q4 0 0 0
2025 Q3 0 0 0
2025 Q2 0 0 0
2025 Q1 0 0 0
2024 Q4 0 0 0
2024 Q3 0 0 0
Show 60 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 0 0 0
2024 Q1 0 0 0
2023 Q4 0 0 0
2023 Q3 0 0 0
2023 Q2 0 0 0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 6 0 0 0.0
2022 Q2 16 0 0 0.0
2022 Q1 0 0 0
2021 Q4 0 0 0
2021 Q3 137 0 0 0.0
2021 Q2 0 0 0
2021 Q1 781 0 0 0.0
2020 Q4 700 2 0 2857.1
2020 Q3 0 0 0
2020 Q2 1,306 0 0 0.0
2020 Q1 1,355 0 0 0.0
2019 Q4 1,009 1 0 991.1
2019 Q3 1,227 0 0 0.0
2019 Q2 1,074 0 0 0.0
2019 Q1 558 0 0 0.0
2011 Q3 24 0 0 0.0
2011 Q2 384 0 0 0.0
2011 Q1 384 0 0 0.0
2010 Q4 644 0 0 0.0
2010 Q3 640 1 0 1562.5
2010 Q2 384 0 0 0.0
2010 Q1 744 1 0 1344.1
2009 Q4 744 0 0 0.0
2009 Q3 216 0 0 0.0
2009 Q2 0 0 0
2009 Q1 1,008 0 0 0.0
2008 Q4 1,560 0 0 0.0
2008 Q3 0 0 0
2008 Q2 0 0 0
2008 Q1 0 0 0
2007 Q4 960 0 0 0.0
2007 Q3 600 0 0 0.0
2007 Q2 1,560 0 0 0.0
2007 Q1 1,560 0 0 0.0
2006 Q4 1,560 1 0 641.0
2006 Q3 1,560 3 1 1923.1
2006 Q2 1,560 0 0 0.0
2006 Q1 1,560 0 0 0.0
2005 Q4 1,560 0 0 0.0
2005 Q3 1,560 0 0 0.0
2005 Q2 1,300 0 0 0.0
2005 Q1 1,300 0 0 0.0
2004 Q4 960 0 0 0.0
2004 Q3 910 1 0 1098.9
2004 Q2 850 0 0 0.0
2004 Q1 768 0 0 0.0
2003 Q4 720 0 0 0.0
2003 Q3 960 0 0 0.0
2003 Q2 480 0 0 0.0
2003 Q1 480 0 0 0.0
2002 Q4 600 0 0 0.0
2002 Q3 480 0 0 0.0
2002 Q2 320 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

2005 · 1 incident

June 29, 2005 UT · Metal/Non-Metal stoper miner MACHINERY
Red Cliff Mining Inc. · Struck by... (Not Elsewhere Classified)

EE was drilling a roof bolt in when a piece of metal from the bit hit his eye.