Mining Incidents

Crusher: 12 MSHA citations Metal/Non-Metal

Thompson Falls Sand and Gravel · Surface
Controlled by Archie J Knerr
Thompson Falls, Sanders County, MT  ·  Abandoned
MSHA Mine ID: 2402486

Crusher 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 2007
12
citations
3
significant & substantial
$1,494
proposed penalties
$1,494
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
15
inspections on record
134
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: 134 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Crusher 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
12 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2012-08-14.
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.
25.0%
significant & substantial
0.0%
high negligence or reckless
25.0%
reasonably likely or greater
41.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 33.3% low, 66.7% 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: 2018-10-17, 7 years ago
2
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg2
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2018-10-17 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-04-06 Respirable dust, <.1mg 0 Front-end Loader Operator

Area samples (mill and shop air)

Last sampled: 2014-10-15, 11 years ago
1
samples
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Area sampled
2014-10-15 Respirable dust, <.1mg 0 CAB OF FRONT-END LOA
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. Thompson Falls Sand and Gravel 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2019 3
2018 3
2017 2
2016 3
2015 3
2014 3
2013 2
2012 2
2011 2
2010 3
2009 0
2008 2
2007 2
Source: MSHA quarterly employment and production, updated weekly.

Crusher sits in Sanders County, Montana, where the Census mining category is 0.8% 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.
Sanders County, Montana · Population 12,936
0.8%
Mining share of county employment
$54,035
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
2019 Q4 182 0 0 0.0
2019 Q3 261 0 0 0.0
2019 Q2 194 0 0 0.0
2019 Q1 112 0 0 0.0
2018 Q4 115 0 0 0.0
2018 Q3 215 0 0 0.0
2018 Q2 181 0 0 0.0
2018 Q1 25 0 0 0.0
Show 42 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2017 Q4 141 0 0 0.0
2017 Q3 143 0 0 0.0
2017 Q2 219 0 0 0.0
2017 Q1 0 0 0
2016 Q4 91 0 0 0.0
2016 Q3 135 0 0 0.0
2016 Q2 15 0 0 0.0
2016 Q1 54 0 0 0.0
2015 Q4 130 0 0 0.0
2015 Q3 168 0 0 0.0
2015 Q2 133 0 0 0.0
2015 Q1 17 0 0 0.0
2014 Q4 118 0 0 0.0
2014 Q3 168 0 0 0.0
2014 Q2 7 0 0 0.0
2014 Q1 7 0 0 0.0
2013 Q4 73 0 0 0.0
2013 Q3 252 0 0 0.0
2013 Q2 231 0 0 0.0
2013 Q1 12 0 0 0.0
2012 Q4 360 0 0 0.0
2012 Q3 474 2 0 4219.4
2012 Q2 262 0 0 0.0
2012 Q1 0 0 0
2011 Q4 56 0 0 0.0
2011 Q3 56 0 0 0.0
2011 Q2 56 6 0 107142.9
2011 Q1 245 0 0 0.0
2010 Q4 846 0 0 0.0
2010 Q3 314 0 0 0.0
2010 Q2 785 0 0 0.0
2010 Q1 825 0 0 0.0
2009 Q4 0 0 0
2009 Q3 80 0 0 0.0
2009 Q2 0 0 0
2009 Q1 0 0 0
2008 Q4 0 0 0
2008 Q3 691 3 3 4341.5
2008 Q2 1,435 0 0 0.0
2008 Q1 0 0 0
2007 Q4 209 0 0 0.0
2007 Q3 1,042 1 0 959.7

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.