Mining Incidents

Luman Rock Pit #1: 12 MSHA citations Metal/Non-Metal

Luman Rock · Surface
Controlled by Lila Dean Luman
Wister, Le Flore County, OK  ·  Intermittent
MSHA Mine ID: 3401870

Luman Rock Pit #1 has $1K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2003
12
citations
2
significant & substantial
$1,469
proposed penalties
$1,469
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
34
inspections on record
217
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: 217 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Luman Rock Pit #1 has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
11 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2016-08-03.
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.
18.2%
significant & substantial
36.4%
high negligence or reckless
18.2%
reasonably likely or greater
18.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.1% low, 54.5% moderate, 36.4% 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: 2025-03-25
0%
of limit-tested samples over the exposure limit
5
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
  • Quartz, respirable, >1% Qtz1
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-03-25 Respirable dust, <.1mg 0 Bobcat Operator
2022-11-09 Respirable dust, <.1mg 0 Bobcat Operator
2012-10-17 Respirable dust, <.1mg 0 Bobcat Operator
2012-10-17 Respirable dust, <.1mg 0 Stone Polisher/Cutter
2012-10-17 Quartz, respirable, >1% Qtz 0.13 0.71 0.18 Stone Polisher/Cutter
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. Luman Rock 2001 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 1
2024 1
2023 1
2022 1
2021 1
2020 1
2019 1
2018 2
2017 2
2016 2
2015 3
2014 3
2013 2
2012 2
2011 2
2010 2
2009 3
2008 4
2007 5
2006 7
2005 5
2004 4
2003 4
2002 3
2001 3
Source: MSHA quarterly employment and production, updated weekly.

Luman Rock Pit #1 sits in Le Flore County, Oklahoma, where the Census mining category is 3.0% 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.
Le Flore County, Oklahoma · Population 48,728
3.0%
Mining share of county employment
$50,027
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 80 0 0 0.0
2026 Q1 130 0 0 0.0
2025 Q4 40 0 0 0.0
2025 Q3 240 0 0 0.0
2025 Q2 29 0 0 0.0
2025 Q1 25 0 0 0.0
2024 Q4 4 0 0 0.0
2024 Q3 75 0 0 0.0
Show 92 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 98 0 0 0.0
2024 Q1 114 0 0 0.0
2023 Q4 132 0 0 0.0
2023 Q3 34 0 0 0.0
2023 Q2 125 0 0 0.0
2023 Q1 114 0 0 0.0
2022 Q4 130 0 0 0.0
2022 Q3 183 0 0 0.0
2022 Q2 276 0 0 0.0
2022 Q1 66 0 0 0.0
2021 Q4 122 0 0 0.0
2021 Q3 214 0 0 0.0
2021 Q2 2 0 0 0.0
2021 Q1 2 0 0 0.0
2020 Q4 0 0 0
2020 Q3 0 0 0
2020 Q2 47 0 0 0.0
2020 Q1 428 0 0 0.0
2019 Q4 632 0 0 0.0
2019 Q3 160 0 0 0.0
2019 Q2 145 0 0 0.0
2019 Q1 103 0 0 0.0
2018 Q4 58 0 0 0.0
2018 Q3 575 0 0 0.0
2018 Q2 636 0 0 0.0
2018 Q1 610 0 0 0.0
2017 Q4 596 0 0 0.0
2017 Q3 630 0 0 0.0
2017 Q2 774 0 0 0.0
2017 Q1 589 0 0 0.0
2016 Q4 710 0 0 0.0
2016 Q3 654 2 0 3058.1
2016 Q2 165 0 0 0.0
2016 Q1 561 0 0 0.0
2015 Q4 451 0 0 0.0
2015 Q3 488 0 0 0.0
2015 Q2 531 0 0 0.0
2015 Q1 645 0 0 0.0
2014 Q4 903 0 0 0.0
2014 Q3 528 0 0 0.0
2014 Q2 631 0 0 0.0
2014 Q1 506 0 0 0.0
2013 Q4 619 1 0 1615.5
2013 Q3 1,037 0 0 0.0
2013 Q2 543 0 0 0.0
2013 Q1 280 0 0 0.0
2012 Q4 680 1 1 1470.6
2012 Q3 631 0 0 0.0
2012 Q2 665 0 0 0.0
2012 Q1 72 1 0 13888.9
2011 Q4 0 0 0
2011 Q3 421 0 0 0.0
2011 Q2 678 0 0 0.0
2011 Q1 326 0 0 0.0
2010 Q4 341 0 0 0.0
2010 Q3 475 0 0 0.0
2010 Q2 509 1 0 1964.6
2010 Q1 307 0 0 0.0
2009 Q4 144 0 0 0.0
2009 Q3 427 0 0 0.0
2009 Q2 685 0 0 0.0
2009 Q1 812 0 0 0.0
2008 Q4 863 0 0 0.0
2008 Q3 675 0 0 0.0
2008 Q2 952 0 0 0.0
2008 Q1 1,081 0 0 0.0
2007 Q4 1,420 0 0 0.0
2007 Q3 1,605 0 0 0.0
2007 Q2 1,524 0 0 0.0
2007 Q1 2,095 0 0 0.0
2006 Q4 2,535 0 0 0.0
2006 Q3 2,840 0 0 0.0
2006 Q2 1,549 3 1 1936.7
2006 Q1 1,103 0 0 0.0
2005 Q4 1,580 0 0 0.0
2005 Q3 1,394 0 0 0.0
2005 Q2 1,311 0 0 0.0
2005 Q1 1,406 1 0 711.2
2004 Q4 621 0 0 0.0
2004 Q3 969 0 0 0.0
2004 Q2 893 0 0 0.0
2004 Q1 779 0 0 0.0
2003 Q4 587 0 0 0.0
2003 Q3 1,113 0 0 0.0
2003 Q2 787 2 0 2541.3
2003 Q1 213 0 0 0.0
2002 Q4 331 0 0 0.0
2002 Q3 673 0 0 0.0
2002 Q2 467 0 0 0.0
2002 Q1 831 0 0 0.0
2001 Q4 179 0 0 0.0
2001 Q3 1,132 0 0 0.0

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.