Mining Incidents

Knolls Pit & Plant: 25 MSHA citations Metal/Non-Metal

Knolls Ready Mix · Surface
Controlled by Peter J Knoll
Glendive, Dawson County, MT  ·  Abandoned
MSHA Mine ID: 2400469

Knolls Pit & Plant has $2K 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 2001
25
citations
7
significant & substantial
$1,833
proposed penalties
$1,833
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
19
inspections on record
157
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: 157 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Knolls Pit & Plant has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
25 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2015-10-06.
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.
28.0%
significant & substantial
0.0%
high negligence or reckless
28.0%
reasonably likely or greater
52.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 8.0% low, 92.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
Ownership history
  1. Knolls Ready Mix 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2018 0
2017 0
2016 0
2015 1
2014 2
2013 1
2012 2
2011 2
2010 2
2009 2
2008 2
2007 2
2006 2
2005 2
2004 2
2003 1
2002 1
2001 1
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Knolls Pit & Plant sits in Dawson County, Montana, where the Census mining category is 2.8% 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.
Dawson County, Montana · Population 8,874
2.8%
Mining share of county employment
$70,953
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
2018 Q3 0 0 0
2018 Q1 0 0 0
2017 Q4 0 0 0
2017 Q3 0 0 0
2017 Q2 0 0 0
2017 Q1 0 0 0
2016 Q4 0 0 0
2016 Q3 0 0 0
Show 66 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2016 Q2 0 0 0
2016 Q1 0 0 0
2015 Q4 0 3 2
2015 Q3 1 0 0 0.0
2015 Q2 1 2 2 2000000.0
2015 Q1 1 0 0 0.0
2014 Q4 1 0 0 0.0
2014 Q3 19 0 0 0.0
2014 Q2 39 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 0 0 0
2013 Q3 19 0 0 0.0
2013 Q2 39 0 0 0.0
2013 Q1 0 0 0
2012 Q4 1 0 0 0.0
2012 Q3 45 0 0 0.0
2012 Q2 35 0 0 0.0
2012 Q1 4 0 0 0.0
2011 Q4 14 0 0 0.0
2011 Q3 28 0 0 0.0
2011 Q2 34 0 0 0.0
2011 Q1 1 0 0 0.0
2010 Q4 1 0 0 0.0
2010 Q3 24 0 0 0.0
2010 Q2 23 1 1 43478.3
2010 Q1 1 0 0 0.0
2009 Q4 14 0 0 0.0
2009 Q3 24 1 0 41666.7
2009 Q2 44 0 0 0.0
2009 Q1 11 0 0 0.0
2008 Q4 11 0 0 0.0
2008 Q3 21 0 0 0.0
2008 Q2 28 0 0 0.0
2008 Q1 0 0 0
2007 Q4 23 0 0 0.0
2007 Q3 43 0 0 0.0
2007 Q2 19 0 0 0.0
2007 Q1 24 0 0 0.0
2006 Q4 16 0 0 0.0
2006 Q3 43 0 0 0.0
2006 Q2 23 0 0 0.0
2006 Q1 0 0 0
2005 Q4 19 0 0 0.0
2005 Q3 51 0 0 0.0
2005 Q2 43 8 1 186046.5
2005 Q1 0 0 0
2004 Q4 53 0 0 0.0
2004 Q3 36 0 0 0.0
2004 Q2 37 0 0 0.0
2004 Q1 0 0 0
2003 Q4 0 0 0
2003 Q3 46 0 0 0.0
2003 Q2 45 1 0 22222.2
2003 Q1 0 0 0
2002 Q4 0 0 0
2002 Q3 34 5 0 147058.8
2002 Q2 34 0 0 0.0
2002 Q1 0 0 0
2001 Q4 0 0 0
2001 Q3 47 4 1 85106.4
2001 Q2 37 0 0 0.0
2001 Q1 1 0 0 0.0
2000 Q4 0 0 0
2000 Q3 91 0 0 0.0
2000 Q2 34 0 0 0.0
2000 Q1 36 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.