Mining Incidents

Layos Pit 564: 72 MSHA citations Metal/Non-Metal

Green River, Sweetwater County, WY  ·  Abandoned
MSHA Mine ID: 4801671

Layos Pit 564 has $23K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2005
72
citations
22
significant & substantial
$23,001
proposed penalties
$23,001
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
52
inspections on record
422
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: 422 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2011-01-19.
On record since 2011.
Source: MSHA imminent-danger order records, updated weekly.

Layos Pit 564 has $23K 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.
$23K
proposed penalties
$23K
current assessed
$23K
paid to date
$0
outstanding
71 assessments are final orders; 1 contested dockets.
Of $2K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2021-09-02.
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.
31.0%
significant & substantial
29.6%
high negligence or reckless
31.0%
reasonably likely or greater
62.0%
permanently disabling or fatal if injury occurs
Negligence coding: 1.4% none, 9.9% low, 59.2% moderate, 29.6% 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 · 1% 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%
0%
Penalty reduction in decided contests
$2K proposed, $2K 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 2012-02-24.
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 2012-575M Settlement Lesnick 2013 $2K → $2K
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: 2015-10-05, 10 years ago
33%
of limit-tested samples over the exposure limit
8
samples
6
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz62 over
  • Respirable dust, <.1mg2
Show the individual readings (8)
Date Contaminant Concentration Limit Conc / limit Occupation
2015-10-05 Quartz, respirable, >1% Qtz 0.23 0.23 1.00 Crusher Oper/Worker
2015-08-25 Quartz, respirable, >1% Qtz 0.7 0.5 1.40 Crusher Oper/Worker
2015-08-25 Respirable dust, <.1mg 0 Laborer, Bullgang
2011-09-28 Quartz, respirable, >1% Qtz 0.6 0.7 0.86 Front-end Loader Operator
2011-09-28 Quartz, respirable, >1% Qtz 0.16 0.46 0.35 Front-end Loader Operator
2006-07-06 Respirable dust, <.1mg 0 Washer Operator
2006-07-06 Quartz, respirable, >1% Qtz 0.16 0.82 0.20 Front-end Loader Operator
2006-07-06 Quartz, respirable, >1% Qtz 0.51 1.15 0.44 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. Arrowhead Concrete Inc 2005 to 2018
  2. Suncore Construction and Materials Inc. 2018 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2025 2
2024 3
2021 0
2020 5
2019 1
2018 0
2017 3
2016 4
2015 2
2014 3
2013 4
2012 3
2011 3
2010 2
2009 3
2008 4
2007 3
2006 3
2005 5
Source: MSHA quarterly employment and production, updated weekly.

Layos Pit 564 sits in Sweetwater County, Wyoming, where the Census mining category is 13.3% 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.
Sweetwater County, Wyoming · Population 41,786
13.3%
Mining share of county employment
$76,464
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
2025 Q1 417 0 0 0.0
2024 Q4 1,694 0 0 0.0
2024 Q3 253 0 0 0.0
2021 Q4 0 0 0
2021 Q3 0 1 0
2021 Q2 0 0 0
2021 Q1 222 0 0 0.0
2020 Q4 1,120 0 0 0.0
Show 62 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2020 Q3 1,184 0 0 0.0
2020 Q2 1,500 2 0 1333.3
2020 Q1 738 0 0 0.0
2019 Q4 246 0 0 0.0
2019 Q3 198 0 0 0.0
2019 Q2 226 0 0 0.0
2019 Q1 0 0 0
2018 Q4 0 0 0
2018 Q3 0 0 0
2018 Q2 20 0 0 0.0
2018 Q1 0 0 0
2017 Q4 1,271 4 1 3147.1
2017 Q3 1,803 1 0 554.6
2017 Q2 1,191 0 0 0.0
2017 Q1 0 0 0
2016 Q4 1,509 2 0 1325.4
2016 Q3 1,502 0 0 0.0
2016 Q2 2,038 0 0 0.0
2016 Q1 590 0 0 0.0
2015 Q4 1,126 0 0 0.0
2015 Q3 1,256 3 1 2388.5
2015 Q2 160 0 0 0.0
2015 Q1 0 1 0
2014 Q4 1,355 0 0 0.0
2014 Q3 4 0 0 0.0
2014 Q2 1,713 1 0 583.8
2014 Q1 113 0 0 0.0
2013 Q4 1,452 0 0 0.0
2013 Q3 1,645 1 0 607.9
2013 Q2 1,266 0 0 0.0
2013 Q1 270 1 0 3703.7
2012 Q4 1,005 0 0 0.0
2012 Q3 1,329 4 3 3009.8
2012 Q2 991 0 0 0.0
2012 Q1 815 3 2 3681.0
2011 Q4 1,826 0 0 0.0
2011 Q3 1,692 1 0 591.0
2011 Q2 1,097 5 4 4557.9
2011 Q1 763 7 5 9174.3
2010 Q4 1,210 0 0 0.0
2010 Q3 1,333 0 0 0.0
2010 Q2 373 1 0 2681.0
2010 Q1 936 0 0 0.0
2009 Q4 1,158 1 0 863.6
2009 Q3 1,693 0 0 0.0
2009 Q2 1,528 0 0 0.0
2009 Q1 1,419 0 0 0.0
2008 Q4 2,047 8 2 3908.2
2008 Q3 2,304 0 0 0.0
2008 Q2 1,645 0 0 0.0
2008 Q1 1,605 1 1 623.1
2007 Q4 1,734 0 0 0.0
2007 Q3 1,744 0 0 0.0
2007 Q2 1,559 5 0 3207.2
2007 Q1 40 2 0 50000.0
2006 Q4 992 0 0 0.0
2006 Q3 2,404 8 0 3327.8
2006 Q2 869 0 0 0.0
2006 Q1 253 0 0 0.0
2005 Q4 1,390 0 0 0.0
2005 Q3 3,314 1 1 301.8
2005 Q2 1,918 4 2 2085.5

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.