Mining Incidents

MOOSE LAKE AGGREGATES LLC: 183 MSHA citations Metal/Non-Metal

Controlled by Ken Smith
Niles, Cass County, MI  ·  Intermittent
MSHA Mine ID: 2003081

MOOSE LAKE AGGREGATES LLC has $215K in proposed MSHA penalties and $0 outstanding across 12 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
4
Years on record
2013–2016
Latest incident
May 2016
Compliance record
MSHA citations since 2000
183
citations
47
significant & substantial
$214,969
proposed penalties
$115,314
paid to date
54% of proposed penalties paid to date, a $99,655 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
64
inspections on record
927
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: 927 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

MOOSE LAKE AGGREGATES LLC has $215K in proposed MSHA penalties and $0 outstanding across 12 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.
$215K
proposed penalties
$115K
current assessed
$115K
paid to date
$0
outstanding
182 assessments are final orders; 12 contested dockets.
Of $195K in penalties contested before the Commission, $89K was upheld in final decisions.
As of the most recent assessment on 2026-03-19.
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.
25.8%
significant & substantial
6.6%
high negligence or reckless
25.8%
reasonably likely or greater
51.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 13.7% low, 79.7% moderate, 6.6% 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.
74 citations taken to the federal commission · 40% of citations on record
  • Settled 67 · 91%
  • Vacated or withdrawn 7 · 9%
57%
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 35 decided S&S contests · industry: 79%
55%
Penalty reduction in decided contests
$212K proposed, $95K 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 2021-06-30.
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
LAKE 2011-615M Settlement Lewis 2014 $160K → $70K
LAKE 2021-0169 Settlement Bulluck 2021 $13K → $6K
LAKE 2018-55M Settlement McCarthy 2019 $8K → $4K
LAKE 2019-0284 Settlement Manning 2020 $3K → $3K
LAKE 2019-0284M Settlement Manning 2020 $3K → $2K
LAKE 2013-705M Settlement Barbour 2014 $2K → $1K
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: 2025-09-24
0%
of limit-tested samples over the exposure limit
21
samples
11
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg8
  • Quartz, respirable, >1% Qtz4
  • Arsenic fumes3
  • Beryllium fumes3
Show the individual readings (57)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-09-24 Nuisance dust, respirable, <1% Qtz 0.16 10 0.02 Front-end Loader Operator
2025-09-24 Respirable dust, <.1mg 0 Laborer, Bullgang
2023-09-07 Respirable dust, <.1mg 0 Backhoe Operator
2023-09-07 Respirable dust, <.1mg 0 Washer Operator
2023-09-07 Respirable dust, <.1mg 0 Dredge/Barge Operator
2014-04-23 Quartz, respirable, >1% Qtz 0.41 2.01 0.20 Front-end Loader Operator
2014-04-23 Respirable dust, <.1mg 0 Washer Operator
2011-11-09 Respirable dust, <.1mg 0 Cleanup Man
2010-04-14 Chromium, insoluble 0 3 0.00 Welder, etc.
2010-04-14 Cobalt fumes 0 300 0.00 Welder, etc.
2010-04-14 Copper fumes 0 300 0.00 Welder, etc.
2010-04-14 Iron oxide fumes 0.21 20 0.01 Welder, etc.
2010-04-14 Lead fumes 0 450 0.00 Welder, etc.
2010-04-14 Magnesium oxide fumes 0 20 0.00 Welder, etc.
2010-04-14 Manganese fumes 0.01 5 0.00 Welder, etc.
2010-04-14 Molybdenum fumes 0 20 0.00 Welder, etc.
2010-04-14 Nickel fumes 0 3 0.00 Welder, etc.
2010-04-14 Vanadium fumes 0 50 0.00 Welder, etc.
2010-04-14 Zinc oxide fumes 0 10 0.00 Welder, etc.
2010-04-14 Arsenic fumes 0 1500 0.00 Welder, etc.
2010-04-14 Beryllium fumes 0 6 0.00 Welder, etc.
2010-04-14 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2010-04-14 Chromium, insoluble 0 3 0.00 Welder, etc.
2010-04-14 Cobalt fumes 0 300 0.00 Welder, etc.
2010-04-14 Copper fumes 0 300 0.00 Welder, etc.
2010-04-14 Iron oxide fumes 0.81 20 0.04 Welder, etc.
2010-04-14 Lead fumes 0 450 0.00 Welder, etc.
2010-04-14 Magnesium oxide fumes 0 20 0.00 Welder, etc.
2010-04-14 Manganese fumes 0.05 5 0.01 Welder, etc.
2010-04-14 Molybdenum fumes 0 20 0.00 Welder, etc.
2010-04-14 Nickel fumes 0 3 0.00 Welder, etc.
2010-04-14 Vanadium fumes 0 50 0.00 Welder, etc.
2010-04-14 Zinc oxide fumes 0 10 0.00 Welder, etc.
2010-04-14 Beryllium fumes 0 2 0.00 Welder, etc.
2010-04-14 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2010-04-14 Chromium, insoluble 0 1 0.00 Welder, etc.
2010-04-14 Cobalt fumes 0 100 0.00 Welder, etc.
2010-04-14 Copper fumes 0 100 0.00 Welder, etc.
2010-04-14 Iron oxide fumes 0.06 10 0.01 Welder, etc.
2010-04-14 Lead fumes 0 150 0.00 Welder, etc.
2010-04-14 Magnesium oxide fumes 0 10 0.00 Welder, etc.
2010-04-14 Manganese fumes 0 5 0.00 Welder, etc.
2010-04-14 Molybdenum fumes 0 10 0.00 Welder, etc.
2010-04-14 Nickel fumes 0 1 0.00 Welder, etc.
2010-04-14 Vanadium fumes 0 50 0.00 Welder, etc.
2010-04-14 Zinc oxide fumes 0 5 0.00 Welder, etc.
2010-04-14 Arsenic fumes 0 500 0.00 Welder, etc.
2010-04-14 Quartz, respirable, >1% Qtz 0.27 0.61 0.44 Washer Operator
2010-04-14 Quartz, respirable, >1% Qtz 0.29 0.69 0.42 Washer Operator
2010-04-14 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-04-14 Respirable dust, <.1mg 0 Dredge/Barge Operator
2010-04-14 Arsenic fumes 0 1500 0.00 Welder, etc.
2010-04-14 Beryllium fumes 0 6 0.00 Welder, etc.
2010-04-14 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2005-07-13 Unlisted Particulate, respirable, <1% Qtz 0.39 Front-end Loader Operator
2005-07-13 Quartz, respirable, >1% Qtz 0.33 1.4 0.24 Crusher Oper/Worker
2005-07-13 Unlisted Particulate, respirable, <1% Qtz 0.27 Utility Man
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. Moose Lake Development Inc 1998 to 1999
  2. Moose Lake Aggregates 1999 to 2001
  3. Moose Lake Aggregates, LLC 2001 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 7
2024 6
2023 6
2022 6
2021 7
2020 8
2019 7
2018 7
2017 7
2016 7
2015 7
2014 6
2013 7
2012 7
2011 7
2010 6
2009 6
2008 6
2007 6
2006 7
2005 6
2004 5
2003 4
2002 4
2001 3
2000 5
Source: MSHA quarterly employment and production, updated weekly.

MOOSE LAKE AGGREGATES LLC sits in Cass County, Michigan, where the Census mining category is 0.1% 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.
Cass County, Michigan · Population 51,606
0.1%
Mining share of county employment
$68,011
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 4,650 0 0 0.0
2026 Q1 2,647 5 0 1888.9
2025 Q4 3,381 0 0 0.0
2025 Q3 5,000 0 0 0.0
2025 Q2 4,637 5 2 1078.3
2025 Q1 2,615 0 0 0.0
2024 Q4 3,521 0 0 0.0
2024 Q3 4,257 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 4,334 0 0 0.0
2024 Q1 3,282 0 0 0.0
2023 Q4 4,292 4 0 932.0
2023 Q3 4,477 0 0 0.0
2023 Q2 4,364 1 0 229.1
2023 Q1 3,465 0 0 0.0
2022 Q4 3,755 0 0 0.0
2022 Q3 4,702 0 0 0.0
2022 Q2 3,778 3 3 794.1
2022 Q1 2,140 0 0 0.0
2021 Q4 3,202 0 0 0.0
2021 Q3 5,118 0 0 0.0
2021 Q2 4,322 6 3 1388.2
2021 Q1 1,951 2 0 1025.1
2020 Q4 5,041 0 0 0.0
2020 Q3 5,285 0 0 0.0
2020 Q2 4,528 0 0 0.0
2020 Q1 3,000 3 0 1000.0
2019 Q4 3,525 2 0 567.4
2019 Q3 4,023 0 0 0.0
2019 Q2 4,544 8 1 1760.6
2019 Q1 3,443 0 0 0.0
2018 Q4 4,534 0 0 0.0
2018 Q3 4,877 5 2 1025.2
2018 Q2 4,835 2 0 413.7
2018 Q1 3,647 0 0 0.0
2017 Q4 4,485 0 0 0.0
2017 Q3 4,734 1 0 211.2
2017 Q2 4,886 11 1 2251.3
2017 Q1 3,635 0 0 0.0
2016 Q4 4,301 0 0 0.0
2016 Q3 4,194 0 0 0.0
2016 Q2 4,348 7 1 1609.9
2016 Q1 3,405 2 0 587.4
2015 Q4 5,175 0 0 0.0
2015 Q3 5,112 0 0 0.0
2015 Q2 5,126 5 0 975.4
2015 Q1 2,845 0 0 0.0
2014 Q4 4,620 0 0 0.0
2014 Q3 5,460 0 0 0.0
2014 Q2 5,104 4 0 783.7
2014 Q1 727 1 0 1375.5
2013 Q4 4,451 2 0 449.3
2013 Q3 5,062 6 1 1185.3
2013 Q2 4,508 0 0 0.0
2013 Q1 1,630 0 0 0.0
2012 Q3 5,040 8 0 1587.3
2012 Q2 5,460 0 0 0.0
2012 Q1 3,360 0 0 0.0
2011 Q4 5,040 10 4 1984.1
2011 Q3 5,040 0 0 0.0
2011 Q2 5,040 0 0 0.0
2011 Q1 2,880 0 0 0.0
2010 Q4 4,320 11 10 2546.3
2010 Q3 4,320 0 0 0.0
2010 Q2 4,320 11 3 2546.3
2010 Q1 1,280 0 0 0.0
2009 Q4 2,600 0 0 0.0
2009 Q3 3,600 8 4 2222.2
2009 Q2 4,320 0 0 0.0
2009 Q1 2,400 0 0 0.0
2008 Q4 2,880 0 0 0.0
2008 Q3 4,320 0 0 0.0
2008 Q2 4,320 0 0 0.0
2008 Q1 2,500 0 0 0.0
2007 Q4 2,880 5 1 1736.1
2007 Q3 2,880 0 0 0.0
2007 Q2 4,500 0 0 0.0
2007 Q1 500 6 1 12000.0
2006 Q4 3,774 0 0 0.0
2006 Q3 5,303 0 0 0.0
2006 Q2 5,152 4 1 776.4
2006 Q1 3,012 0 0 0.0
2005 Q4 3,468 0 0 0.0
2005 Q3 5,115 16 4 3128.1
2005 Q2 4,968 0 0 0.0
2005 Q1 120 0 0 0.0
2004 Q4 3,000 0 0 0.0
2004 Q3 3,600 0 0 0.0
2004 Q2 3,600 0 0 0.0
2004 Q1 1,200 0 0 0.0
2003 Q4 3,000 9 3 3000.0
2003 Q3 3,000 4 1 1333.3
2003 Q2 3,000 0 0 0.0
2003 Q1 640 0 0 0.0
2002 Q4 600 0 0 0.0
2002 Q3 2,640 0 0 0.0
2002 Q2 2,400 0 0 0.0
2002 Q1 960 0 0 0.0
2001 Q4 1,800 3 0 1666.7
2001 Q3 1,800 0 0 0.0
2001 Q2 2,950 0 0 0.0
2001 Q1 531 0 0 0.0
2000 Q4 2,731 0 0 0.0
2000 Q3 4,400 0 0 0.0
2000 Q1 480 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2016 · 2 incidents

May 26, 2016 MI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Moose Lake Aggregates, LLC · Caught in, under or between (Not Elsewhere Classified)

Putting drive belt on pulleys and drive belt caught glove and smashed finger between pulley and belt.

April 13, 2016 MI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT
Moose Lake Aggregates, LLC · Struck against stationary object

EE was fueling and greasing loader. EE stepped on a 1 1/2" rock and tore tendons in foot.

2015 · 1 incident

September 11, 2015 MI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Moose Lake Aggregates, LLC · Struck by... (Not Elsewhere Classified)

Employee was tightening a chain come along when doing repair work on the dredge. The chain on the come along broke and struck his right forearm.

2013 · 1 incident

August 29, 2013 MI · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Moose Lake Aggregates, LLC · Struck by... (Not Elsewhere Classified)

Employee was holding a bar to hold a wheel in place working on the dredge. Wheel rolled out of position and onto his fingers.