Mining Incidents

Duo-King Plant #4: 40 MSHA citations Metal/Non-Metal

R E Glancy Inc · Surface
Controlled by Kevin Ford Manne
Tawas City, Iosco County, MI  ·  Intermittent
MSHA Mine ID: 2002404

Duo-King Plant #4 has $4K 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
4
Years on record
1984–2003
Latest incident
Jun 2003
Compliance record
MSHA citations since 2000
40
citations
7
significant & substantial
$3,503
proposed penalties
$3,503
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
34
inspections on record
475
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: 475 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Duo-King Plant #4 has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
34 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2019-08-06.
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.
17.5%
significant & substantial
2.5%
high negligence or reckless
17.5%
reasonably likely or greater
40.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 17.5% low, 80.0% moderate, 2.5% 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: 2026-07-14
0%
of limit-tested samples over the exposure limit
15
samples
6
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg8
  • Quartz, respirable, >1% Qtz7
Show the individual readings (15)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-07-14 Quartz, respirable, >1% Qtz 0.31 1.25 0.25 Crusher Oper/Worker
2026-07-14 Quartz, respirable, >1% Qtz 0.42 1.15 0.37 Laborer, Bullgang
2026-07-14 Quartz, respirable, >1% Qtz 0.39 1.04 0.38 Front-end Loader Operator
2026-07-14 Quartz, respirable, >1% Qtz 0.2 0.9 0.22 Truck Driver
2023-11-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-08-07 Respirable dust, <.1mg 0 Truck Driver
2019-08-07 Respirable dust, <.1mg 0 Truck Driver
2019-08-07 Respirable dust, <.1mg 0 Truck Driver
2019-08-07 Quartz, respirable, >1% Qtz 0.13 Laborer, Bullgang
2010-11-02 Respirable dust, <.1mg 0 Laborer, Bullgang
2010-11-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-11-02 Quartz, respirable, >1% Qtz 0.21 0.56 0.38 Dry Screen Plant Operator
2010-11-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2007-05-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2007-05-08 Quartz, respirable, >1% Qtz 0.29 2.22 0.13 Dry Screen Plant Operator
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. R E Glancy Inc 1978 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 8
2024 9
2023 8
2022 5
2021 10
2020 8
2019 5
2018 5
2017 4
2016 5
2015 5
2014 6
2013 3
2012 4
2011 4
2010 3
2009 3
2008 5
2007 4
2006 6
2005 7
2004 5
2003 7
2002 7
2001 5
2000 7
Source: MSHA quarterly employment and production, updated weekly.

Duo-King Plant #4 sits in Iosco County, Michigan, where the Census mining category is 0.5% 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.
Iosco County, Michigan · Population 25,333
0.5%
Mining share of county employment
$47,777
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 828 0 0 0.0
2026 Q1 0 0 0
2025 Q4 1,490 0 0 0.0
2025 Q3 4,044 0 0 0.0
2025 Q2 678 0 0 0.0
2025 Q1 1 0 0 0.0
2024 Q4 2,170 0 0 0.0
2024 Q3 2,768 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 500 0 0 0.0
2024 Q1 1 0 0 0.0
2023 Q4 1,110 0 0 0.0
2023 Q3 3,442 0 0 0.0
2023 Q2 1,007 0 0 0.0
2023 Q1 0 0 0
2022 Q4 1,249 0 0 0.0
2022 Q3 2,723 0 0 0.0
2022 Q2 101 0 0 0.0
2022 Q1 0 0 0
2021 Q4 1,650 0 0 0.0
2021 Q3 3,280 0 0 0.0
2021 Q2 2,313 0 0 0.0
2021 Q1 395 0 0 0.0
2020 Q4 2,272 0 0 0.0
2020 Q3 4,412 0 0 0.0
2020 Q2 2,878 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 1,901 0 0 0.0
2019 Q3 3,381 1 0 295.8
2019 Q2 1 0 0 0.0
2019 Q1 0 0 0
2018 Q4 1,178 0 0 0.0
2018 Q3 2,263 0 0 0.0
2018 Q2 1 0 0 0.0
2018 Q1 1 0 0 0.0
2017 Q4 734 0 0 0.0
2017 Q3 1,238 0 0 0.0
2017 Q2 633 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 1,529 0 0 0.0
2016 Q3 1,200 0 0 0.0
2016 Q2 1,084 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 1,126 1 0 888.1
2015 Q3 764 0 0 0.0
2015 Q2 584 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 837 1 0 1194.7
2014 Q3 1,172 0 0 0.0
2014 Q2 971 4 0 4119.5
2014 Q1 1 0 0 0.0
2013 Q4 669 1 0 1494.8
2013 Q3 457 0 0 0.0
2013 Q2 1 0 0 0.0
2013 Q1 1 0 0 0.0
2012 Q4 703 0 0 0.0
2012 Q3 1 0 0 0.0
2012 Q2 483 1 0 2070.4
2012 Q1 91 0 0 0.0
2011 Q4 460 0 0 0.0
2011 Q3 585 0 0 0.0
2011 Q2 675 0 0 0.0
2011 Q1 1 0 0 0.0
2010 Q4 1,092 2 1 1831.5
2010 Q3 222 0 0 0.0
2010 Q2 1 0 0 0.0
2010 Q1 1 0 0 0.0
2009 Q4 458 0 0 0.0
2009 Q3 1,097 2 0 1823.2
2009 Q2 1,110 0 0 0.0
2009 Q1 0 0 0
2008 Q4 1,728 0 0 0.0
2008 Q3 1,913 0 0 0.0
2008 Q2 977 0 0 0.0
2008 Q1 2 0 0 0.0
2007 Q4 1,242 0 0 0.0
2007 Q3 451 0 0 0.0
2007 Q2 1,278 2 0 1564.9
2007 Q1 2 0 0 0.0
2006 Q4 1,762 0 0 0.0
2006 Q3 2,966 0 0 0.0
2006 Q2 3,180 1 0 314.5
2006 Q1 1 0 0 0.0
2005 Q4 3,415 0 0 0.0
2005 Q3 4,683 0 0 0.0
2005 Q2 1,810 0 0 0.0
2005 Q1 0 0 0
2004 Q4 2,251 2 0 888.5
2004 Q3 4,024 0 0 0.0
2004 Q2 3,068 1 0 325.9
2004 Q1 0 0 0
2003 Q4 2,570 0 0 0.0
2003 Q3 4,014 2 0 498.3
2003 Q2 3,176 0 0 0.0
2003 Q1 1 0 0 0.0
2002 Q4 3,000 0 0 0.0
2002 Q3 5,010 0 0 0.0
2002 Q2 3,495 2 0 572.2
2002 Q1 1 0 0 0.0
2001 Q4 1,702 0 0 0.0
2001 Q3 4,025 0 0 0.0
2001 Q2 3,893 8 2 2055.0
2001 Q1 40 1 0 25000.0
2000 Q4 2,537 0 0 0.0
2000 Q3 4,651 0 0 0.0
2000 Q2 4,975 2 0 402.0
2000 Q1 449 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2003 · 1 incident

June 19, 2003 MI · Metal/Non-Metal mine manager, mine foreman, mine owner OTHER
R E Glancy Inc · Bodily reaction, (Not Elsewhere Classified)

EMPLOYEES WERE DOING MAINTENANCE ON SCREEN PLANT AND INJURED EE JUST FELT HIS BACK SNAP. ALL EE DID WAS TURN, WAS NOT LIFTING OR PUSHING ANYTHING.

2002 · 1 incident

May 29, 2002 MI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
R E Glancy Inc · Fall from machine

EE WAS OPERATING A 988B LOADER WHICH CAUGHT ON FIRE IN THE ENGINE AREA. HE CLIMBED DOWN, BUT WENT BACK UP TO TURN LOADER OFF. BY THE TIME HE FINISHED, FLAMES WERE CLOSE TO THE CAB AND HE JUMPE D DOWN INSTEAD OF CLIMBING DOWN THE LADDER.

2000 · 1 incident

July 31, 2000 MI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
R E Glancy Inc · Over-exertion in lifting objects

WORKING WITH OTHER CREW MEMBERS TO CHANGE JAW DIE. LIFTED SOMETHING, FELT SOMETHING IN BACK. GOT WORSE AND MORE PAINFUL AS TIME WENT BY.

1984 · 1 incident

March 30, 1984 MI · Metal/Non-Metal outside foreman, leadman POWERED HAULAGE
R E Glancy Inc · Caught in, under or between (Not Elsewhere Classified)

WRENCH SLIPPED OFF ADJUSTING BOLT ON CONVEYOR CAUSING THE ARM TO BE CAUGHT & BE PULLED PART WAY AROUND THE TAILPULLEY. THE RIGHT ARM WAS FRACTURED IN 2 PLACES & THE MUSCLE WAS TORN.