Mining Incidents

Siddoway Pit: 54 MSHA citations Metal/Non-Metal

Mountain West Products LLC · Surface
Rexburg, Fremont County, ID  ·  Intermittent
MSHA Mine ID: 1001834

Siddoway Pit has $7K 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 2000
54
citations
6
significant & substantial
$6,574
proposed penalties
$6,574
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
44
inspections on record
464
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: 464 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Siddoway Pit has $7K 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
50 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-08-09.
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.
11.1%
significant & substantial
7.4%
high negligence or reckless
11.1%
reasonably likely or greater
51.9%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 9.3% low, 83.3% moderate, 7.4% 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: 2023-08-09, 3 years ago
0%
of limit-tested samples over the exposure limit
2
samples
1
limit-tested
Most sampled contaminants
  • Cristobalite, respirable1
  • Respirable dust, <.1mg1
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-08-09 Respirable dust, <.1mg 0 Screen/Scalper Operator
2012-05-09 Cristobalite, respirable 0.66 0.71 0.93 Front-end Loader Operator

Area samples (mill and shop air)

Last sampled: 2014-04-29, 12 years ago
2
samples
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Area sampled
2014-04-29 Unlisted Particulate, respirable, <1% Qtz 1.03 SF ACTIVE MINING
2014-04-29 Respirable dust, <.1mg 0 SF ACTIVE MINING
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. Mountain West Bark Products Inc 1988 to 1993
  2. Mwca Inc 1993 to 2000
  3. Mountain West Products LLC 2000 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 2
2020 1
2019 1
2018 1
2017 1
2016 1
2015 1
2014 1
2013 1
2012 1
2011 1
2010 1
2009 1
2008 1
2007 2
2006 2
2005 2
2004 1
2003 1
2002 1
2001 1
2000 1
Source: MSHA quarterly employment and production, updated weekly.

Siddoway Pit sits in Fremont County, Idaho, where the Census mining category is 0.0% 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.
Fremont County, Idaho · Population 13,701
0.0%
Mining share of county employment
$72,767
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 344 0 0 0.0
2026 Q1 120 0 0 0.0
2025 Q4 315 0 0 0.0
2025 Q3 160 0 0 0.0
2025 Q2 585 0 0 0.0
2024 Q4 0 0 0
2024 Q3 400 0 0 0.0
2024 Q2 480 0 0 0.0
Show 94 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q1 0 0 0
2023 Q4 320 0 0 0.0
2023 Q3 350 2 0 5714.3
2023 Q2 480 0 0 0.0
2023 Q1 0 0 0
2022 Q4 160 0 0 0.0
2022 Q3 160 1 0 6250.0
2022 Q2 480 0 0 0.0
2022 Q1 160 0 0 0.0
2021 Q4 560 0 0 0.0
2021 Q3 1,680 3 0 1785.7
2021 Q2 800 0 0 0.0
2021 Q1 120 0 0 0.0
2020 Q4 420 0 0 0.0
2020 Q3 420 2 0 4761.9
2020 Q2 420 0 0 0.0
2019 Q4 320 0 0 0.0
2019 Q3 420 0 0 0.0
2019 Q2 400 0 0 0.0
2018 Q4 220 0 0 0.0
2018 Q3 420 0 0 0.0
2018 Q2 220 2 0 9090.9
2018 Q1 80 0 0 0.0
2017 Q4 340 0 0 0.0
2017 Q3 308 0 0 0.0
2017 Q2 400 0 0 0.0
2017 Q1 80 0 0 0.0
2016 Q4 250 0 0 0.0
2016 Q3 360 1 1 2777.8
2016 Q2 400 0 0 0.0
2016 Q1 150 0 0 0.0
2015 Q4 200 0 0 0.0
2015 Q3 320 0 0 0.0
2015 Q2 260 0 0 0.0
2015 Q1 80 0 0 0.0
2014 Q4 320 0 0 0.0
2014 Q3 220 0 0 0.0
2014 Q2 280 2 0 7142.9
2014 Q1 0 0 0
2013 Q4 0 0 0
2013 Q3 160 0 0 0.0
2013 Q2 360 3 1 8333.3
2013 Q1 50 0 0 0.0
2012 Q4 100 0 0 0.0
2012 Q3 356 0 0 0.0
2012 Q2 180 0 0 0.0
2012 Q1 20 0 0 0.0
2011 Q4 200 0 0 0.0
2011 Q3 300 2 0 6666.7
2011 Q2 210 0 0 0.0
2011 Q1 30 0 0 0.0
2010 Q4 250 0 0 0.0
2010 Q3 320 0 0 0.0
2010 Q2 160 0 0 0.0
2010 Q1 0 0 0
2009 Q4 200 3 2 15000.0
2009 Q3 240 0 0 0.0
2009 Q2 250 0 0 0.0
2009 Q1 0 0 0
2008 Q4 200 0 0 0.0
2008 Q3 300 1 0 3333.3
2008 Q2 310 0 0 0.0
2008 Q1 0 0 0
2007 Q4 849 0 0 0.0
2007 Q3 250 0 0 0.0
2007 Q2 325 0 0 0.0
2007 Q1 60 0 0 0.0
2006 Q4 170 3 0 17647.1
2006 Q3 350 0 0 0.0
2006 Q2 220 0 0 0.0
2006 Q1 35 0 0 0.0
2005 Q4 370 0 0 0.0
2005 Q3 470 0 0 0.0
2005 Q2 500 0 0 0.0
2005 Q1 0 0 0
2004 Q4 680 0 0 0.0
2004 Q3 180 0 0 0.0
2004 Q2 64 1 0 15625.0
2004 Q1 0 0 0
2003 Q4 0 0 0
2003 Q3 300 0 0 0.0
2003 Q2 280 2 0 7142.9
2003 Q1 0 0 0
2002 Q4 160 0 0 0.0
2002 Q3 480 0 0 0.0
2002 Q2 320 0 0 0.0
2002 Q1 0 0 0
2001 Q4 40 10 1 250000.0
2001 Q3 85 0 0 0.0
2001 Q2 320 11 0 34375.0
2001 Q1 0 0 0
2000 Q4 2 0 0 0.0
2000 Q2 0 0 0
2000 Q1 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.