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Tecumseh Plant: 37 MSHA citations Metal/Non-Metal

Tecumseh, Lenawee County, MI  ·  Active
MSHA Mine ID: 2003312

Tecumseh Plant has $7K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
2
Years on record
2005–2006
Latest incident
Jul 2006
Compliance record
MSHA citations since 2006
37
citations
11
significant & substantial
$7,194
proposed penalties
$6,077
paid to date
84% of proposed penalties paid to date, a $1,117 gap.
Source: MSHA violations data, updated weekly.
See Gerken Materials Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2005
34
inspections on record
486
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: 486 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Tecumseh Plant has $7K in proposed MSHA penalties and $0 outstanding across 3 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
$6K
current assessed
$6K
paid to date
$0
outstanding
37 assessments are final orders; 3 contested dockets.
Of $3K in penalties contested before the Commission, $2K was upheld in final decisions.
As of the most recent assessment on 2025-10-16.
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.
29.7%
significant & substantial
8.1%
high negligence or reckless
29.7%
reasonably likely or greater
35.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 27.0% low, 64.9% moderate, 8.1% 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.
6 citations taken to the federal commission · 16% of citations on record
  • Settled 3 · 50%
  • Stood as issued 2 · 33%
  • Vacated or withdrawn 1 · 17%
75%
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 4 decided S&S contests · industry: 79%
43%
Penalty reduction in decided contests
$3K proposed, $2K 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 2011-05-20.
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 2011-693M Prevail Barbour 2012 $2K → $1K
LAKE 2011-314M Dismissal Zielinski 2011 $434 → $317
LAKE 2007-212M Settlement Barbour 2008 $400 → $300
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: 2024-05-21
0%
of limit-tested samples over the exposure limit
11
samples
2
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg6
  • Unlisted Particulate, respirable, <1% Qtz3
  • Quartz, respirable, >1% Qtz2
Show the individual readings (11)
Date Contaminant Concentration Limit Conc / limit Occupation
2024-05-21 Respirable dust, <.1mg 0 Utility Man
2024-05-21 Respirable dust, <.1mg 0 Utility Man
2020-10-28 Respirable dust, <.1mg 0 Washer Operator
2020-10-28 Unlisted Particulate, respirable, <1% Qtz 0.22 Dredge/Barge Operator
2020-10-28 Respirable dust, <.1mg 0 Front-end Loader Operator
2015-10-07 Unlisted Particulate, respirable, <1% Qtz 0.19 Dragline Operator
2015-10-07 Respirable dust, <.1mg 0 Washer Operator
2015-10-07 Quartz, respirable, >1% Qtz 0.15 0.85 0.18 Truck Driver
2010-11-09 Quartz, respirable, >1% Qtz 0.21 0.79 0.27 Front-end Loader Operator
2010-11-09 Respirable dust, <.1mg 0 Washer Operator
2010-11-09 Unlisted Particulate, respirable, <1% Qtz 0.14 Dragline 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. Sylvester Material Co Inc 2005 to 2006
  2. Stansley Mineral Resources, Inc. 2006 to 2012
  3. GS Materials, LLC 2012 to 2017
  4. Gerken Materials Inc. 2017 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 5
2025 5
2024 5
2023 5
2022 5
2021 5
2020 7
2019 6
2018 5
2017 4
2016 4
2015 5
2014 4
2013 5
2012 4
2011 5
2010 7
2009 8
2008 5
2007 8
2006 9
2005 1
Source: MSHA quarterly employment and production, updated weekly.

Tecumseh Plant sits in Lenawee 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.
Lenawee County, Michigan · Population 98,823
0.1%
Mining share of county employment
$67,013
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 3,110 0 0 0.0
2026 Q1 2,034 0 0 0.0
2025 Q4 2,709 1 0 369.1
2025 Q3 2,954 0 0 0.0
2025 Q2 3,132 0 0 0.0
2025 Q1 2,291 0 0 0.0
2024 Q4 2,656 1 0 376.5
2024 Q3 2,296 0 0 0.0
Show 74 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,539 1 0 393.9
2024 Q1 2,274 1 0 439.8
2023 Q4 2,483 0 0 0.0
2023 Q3 2,955 0 0 0.0
2023 Q2 3,030 1 0 330.0
2023 Q1 1,653 1 0 605.0
2022 Q4 2,198 0 0 0.0
2022 Q3 2,910 0 0 0.0
2022 Q2 3,022 4 2 1323.6
2022 Q1 1,537 1 1 650.6
2021 Q4 2,430 0 0 0.0
2021 Q3 2,981 1 0 335.5
2021 Q2 3,153 0 0 0.0
2021 Q1 2,087 0 0 0.0
2020 Q4 3,818 0 0 0.0
2020 Q3 3,476 0 0 0.0
2020 Q2 4,424 0 0 0.0
2020 Q1 3,396 1 1 294.5
2019 Q4 2,401 0 0 0.0
2019 Q3 4,590 0 0 0.0
2019 Q2 3,283 0 0 0.0
2019 Q1 1,570 0 0 0.0
2018 Q4 3,020 0 0 0.0
2018 Q3 2,679 0 0 0.0
2018 Q2 1,807 0 0 0.0
2018 Q1 1,230 2 1 1626.0
2017 Q4 2,322 0 0 0.0
2017 Q3 2,372 0 0 0.0
2017 Q2 2,030 0 0 0.0
2017 Q1 994 0 0 0.0
2016 Q4 2,089 2 1 957.4
2016 Q3 2,732 0 0 0.0
2016 Q2 2,389 0 0 0.0
2016 Q1 1,296 0 0 0.0
2015 Q4 2,507 0 0 0.0
2015 Q3 3,228 0 0 0.0
2015 Q2 2,137 1 0 467.9
2015 Q1 640 0 0 0.0
2014 Q4 1,471 0 0 0.0
2014 Q3 2,296 0 0 0.0
2014 Q2 1,926 0 0 0.0
2014 Q1 630 0 0 0.0
2013 Q4 2,376 4 1 1683.5
2013 Q3 2,617 0 0 0.0
2013 Q2 3,216 3 0 932.8
2013 Q1 1,508 0 0 0.0
2012 Q4 2,744 0 0 0.0
2012 Q3 2,795 0 0 0.0
2012 Q2 2,333 3 0 1285.9
2012 Q1 611 0 0 0.0
2011 Q4 2,224 0 0 0.0
2011 Q3 3,883 0 0 0.0
2011 Q2 2,403 0 0 0.0
2011 Q1 480 0 0 0.0
2010 Q4 4,075 4 2 981.6
2010 Q3 4,301 3 1 697.5
2010 Q2 2,740 0 0 0.0
2010 Q1 1,176 0 0 0.0
2009 Q4 4,876 0 0 0.0
2009 Q2 3,928 0 0 0.0
2009 Q1 728 0 0 0.0
2008 Q4 4,269 0 0 0.0
2008 Q3 3,477 0 0 0.0
2008 Q2 1,927 0 0 0.0
2008 Q1 1,486 0 0 0.0
2007 Q4 3,478 0 0 0.0
2007 Q3 5,595 0 0 0.0
2007 Q2 5,468 0 0 0.0
2007 Q1 2,369 0 0 0.0
2006 Q4 2,397 1 1 417.2
2006 Q3 3,893 0 0 0.0
2006 Q2 3,174 0 0 0.0
2005 Q4 1,457 0 0 0.0
2005 Q2 0 0 0
No fatalities recorded at this mine.

Reportable incidents

2 on file

2006 · 1 incident

July 11, 2006 MI · Metal/Non-Metal outside foreman, leadman OTHER
Stansley Mineral Resources, Inc. · Caught in, under or between a moving and a stationary object

Steel hatch door was opened to access hydraulic equipment on classifying tank station. Door was propped up against rail in verical position but was not secured. Wind blew door closed on EE's lt hand. No equipment was damaged. Injury to hand was swelling & bruising. He was taken to hospital to have injury inspected. Xrays were neg. Splint was applied to wrist & arm. No impairment.

2005 · 1 incident

November 7, 2005 MI · Metal/Non-Metal electrician, lineman OTHER
Sylvester Material Co Inc · (Not Elsewhere Classified)

Contractor was on site to work on electrical system at new office/scale house. The victim reportedly passed out while working. 911 was called & First Aid/CPR was administered. Victim was taken to hospital by local EMS @ approx. 2:30pm. Victim was not employee of SMC. Mine was not in operation at the time & power was not hooked up. Victim died of Heart Attack.