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Clinton Plant: 88 MSHA citations Metal/Non-Metal

Clinton, Washtenaw County, MI  ·  Active
MSHA Mine ID: 2002886

Clinton Plant has $29K in proposed MSHA penalties and $1 outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
1998–2026
Latest incident
Feb 2026
Compliance record
MSHA citations since 2000
88
citations
24
significant & substantial
$28,691
proposed penalties
$15,943
paid to date
56% of proposed penalties paid to date, a $12,748 gap.
Source: MSHA violations data, updated weekly.
See Gerken Materials Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
48
inspections on record
719
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: 719 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Clinton Plant has $29K in proposed MSHA penalties and $1 outstanding across 4 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.
$29K
proposed penalties
$16K
current assessed
$16K
paid to date
$1
outstanding
85 assessments are final orders; 4 contested dockets.
Of $22K in penalties contested before the Commission, $9K was upheld in final decisions.
As of the most recent assessment on 2026-04-14.
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.
27.3%
significant & substantial
3.4%
high negligence or reckless
28.4%
reasonably likely or greater
52.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 18.2% low, 78.4% moderate, 3.4% 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.
28 citations taken to the federal commission · 32% of citations on record
  • Settled 25 · 89%
  • Stood as issued 2 · 7%
  • Vacated or withdrawn 1 · 4%
91%
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 11 decided S&S contests · industry: 79%
58%
Penalty reduction in decided contests
$22K proposed, $9K 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 2011-01-24.
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 2011-212 Settlement Zielinski 2011 $16K → $6K
LAKE 2011-313M Settlement Zielinski 2012 $4K → $2K
LAKE 2007-40M Settlement Lesnick 2007 $2K → $1K
LAKE 2004-62-M Dismissal Lesnick 2004 $180 → $120
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: 2025-10-29
0%
of limit-tested samples over the exposure limit
17
samples
1
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg15
  • Quartz, respirable, >1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (17)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-29 Respirable dust, <.1mg 0 Laborer, Bullgang
2025-10-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-10-29 Respirable dust, <.1mg 0 Dredge/Barge Operator
2025-10-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-09-27 Respirable dust, <.1mg 0 Washer Operator
2023-09-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-12-03 Respirable dust, <.1mg 0 Truck Driver
2019-12-03 Respirable dust, <.1mg 0 Washer Operator
2019-12-03 Respirable dust, <.1mg 0 Dredge/Barge Operator
2015-06-23 Respirable dust, <.1mg 0 Truck Driver
2015-06-23 Respirable dust, <.1mg 0 Dragline Operator
2015-06-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2010-04-14 Respirable dust, <.1mg 0 Washer Operator
2010-04-14 Quartz, respirable, >1% Qtz 0.16 1.39 0.12 Front-end Loader Operator
2003-11-06 Unlisted Particulate, respirable, <1% Qtz 0.99 Washer Operator
2003-11-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-11-06 Respirable dust, <.1mg 0 Front-end Loader 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.

Clinton Plant recorded 19.32 reportable injury cases per 100 full-time workers in 2019.

Injury rate, 2019
ⓘ This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
19.32
total case rate
19.32
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.94 and the all-US-mining average was 2.32 cases per 100 workers.
In Michigan, metal and nonmetal mining averaged 1.79 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Year total case rate days-away fatal
2019 * 19.32 19.32 0.000
2018 * 0.00 0.00 0.000
2010 * 0.00 0.00 0.000
2007 * 0.00 0.00 0.000
2006 * 0.00 0.00 0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
Ownership history
  1. Sylvester Material Company, Inc. 1992 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 6
2025 7
2024 7
2023 7
2022 7
2021 6
2020 7
2019 8
2018 9
2017 8
2016 9
2015 8
2014 8
2013 8
2012 6
2011 7
2010 11
2009 8
2008 6
2007 10
2006 13
2005 9
2004 6
2003 7
2002 7
2001 6
2000 9
Source: MSHA quarterly employment and production, updated weekly.

Clinton Plant sits in Washtenaw County, Michigan, 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.
Washtenaw County, Michigan · Population 368,394
0.0%
Mining share of county employment
$87,156
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 4,012 1 0 249.3
2026 Q1 2,418 0 0 0.0
2025 Q4 3,969 0 0 0.0
2025 Q3 4,554 0 0 0.0
2025 Q2 4,023 0 0 0.0
2025 Q1 2,899 0 0 0.0
2024 Q4 4,070 0 0 0.0
2024 Q3 4,630 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,920 2 0 510.2
2024 Q1 2,841 1 0 352.0
2023 Q4 3,653 0 0 0.0
2023 Q3 4,230 0 0 0.0
2023 Q2 3,957 0 0 0.0
2023 Q1 2,759 1 0 362.5
2022 Q4 4,456 0 0 0.0
2022 Q3 4,373 0 0 0.0
2022 Q2 3,748 0 0 0.0
2022 Q1 2,065 1 1 484.3
2021 Q4 4,027 0 0 0.0
2021 Q3 3,860 1 1 259.1
2021 Q2 3,964 0 0 0.0
2021 Q1 2,391 0 0 0.0
2020 Q4 4,725 0 0 0.0
2020 Q3 4,912 0 0 0.0
2020 Q2 4,390 1 0 227.8
2020 Q1 3,325 0 0 0.0
2019 Q4 5,919 2 0 337.9
2019 Q3 6,454 0 0 0.0
2019 Q2 5,294 0 0 0.0
2019 Q1 3,032 0 0 0.0
2018 Q4 5,858 0 0 0.0
2018 Q3 6,093 0 0 0.0
2018 Q2 5,676 0 0 0.0
2018 Q1 2,585 0 0 0.0
2017 Q4 5,158 1 0 193.9
2017 Q3 6,357 0 0 0.0
2017 Q2 5,458 0 0 0.0
2017 Q1 1,766 0 0 0.0
2016 Q4 5,211 3 0 575.7
2016 Q3 6,706 0 0 0.0
2016 Q2 5,774 1 0 173.2
2016 Q1 1,864 0 0 0.0
2015 Q4 4,078 0 0 0.0
2015 Q3 5,730 0 0 0.0
2015 Q2 5,664 1 0 176.6
2015 Q1 1,725 0 0 0.0
2014 Q4 3,833 0 0 0.0
2014 Q3 6,405 0 0 0.0
2014 Q2 5,737 0 0 0.0
2014 Q1 1,028 1 0 972.8
2013 Q4 4,057 0 0 0.0
2013 Q3 4,402 3 0 681.5
2013 Q2 3,808 0 0 0.0
2013 Q1 2,272 0 0 0.0
2012 Q4 4,646 0 0 0.0
2012 Q3 3,168 0 0 0.0
2012 Q2 2,820 0 0 0.0
2012 Q1 626 0 0 0.0
2011 Q4 2,956 3 0 1014.9
2011 Q3 4,635 0 0 0.0
2011 Q2 3,216 0 0 0.0
2011 Q1 670 0 0 0.0
2010 Q4 5,128 13 7 2535.1
2010 Q3 8,291 0 0 0.0
2010 Q2 7,218 9 6 1246.9
2010 Q1 2,973 0 0 0.0
2009 Q4 5,467 0 0 0.0
2009 Q3 6,020 3 2 498.3
2009 Q2 4,119 0 0 0.0
2009 Q1 691 0 0 0.0
2008 Q4 4,040 0 0 0.0
2008 Q3 4,055 0 0 0.0
2008 Q2 3,094 0 0 0.0
2008 Q1 2,222 0 0 0.0
2007 Q4 4,315 1 0 231.7
2007 Q3 6,612 0 0 0.0
2007 Q2 5,980 1 0 167.2
2007 Q1 6,376 0 0 0.0
2006 Q4 4,599 0 0 0.0
2006 Q3 5,823 0 0 0.0
2006 Q2 6,630 14 3 2111.6
2006 Q1 3,832 0 0 0.0
2005 Q4 4,370 0 0 0.0
2005 Q3 4,744 0 0 0.0
2005 Q2 5,077 0 0 0.0
2005 Q1 2,675 0 0 0.0
2004 Q4 2,650 5 1 1886.8
2004 Q3 3,800 0 0 0.0
2004 Q2 3,845 0 0 0.0
2004 Q1 2,075 0 0 0.0
2003 Q4 4,005 4 0 998.8
2003 Q3 4,536 0 0 0.0
2003 Q2 4,559 0 0 0.0
2003 Q1 3,986 0 0 0.0
2002 Q4 3,694 1 0 270.7
2002 Q3 5,383 0 0 0.0
2002 Q2 2,839 0 0 0.0
2002 Q1 2,709 0 0 0.0
2001 Q4 3,201 0 0 0.0
2001 Q3 4,202 4 2 951.9
2001 Q2 4,413 0 0 0.0
2001 Q1 2,292 0 0 0.0
2000 Q4 4,063 0 0 0.0
2000 Q3 4,741 10 1 2109.3
2000 Q2 4,839 0 0 0.0
2000 Q1 4,127 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2026 · 1 incident

February 10, 2026 MI · Metal/Non-Metal miner, prospector, nec HANDLING OF MATERIALS
Gerken Materials Inc. · Over-exertion in pulling or pushing objects

Employee was climbing up ladder to a conveyor and felt a shoulder pop. After being checked by medical it was determined that their shoulder dislocated.

2019 · 2 incidents

June 29, 2019 MI · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger MACHINERY
Gerken Materials Inc. · Over-exertion (Not Elsewhere Classified)

Employee was operating the dragline and turned to dump bucket and felt machine tilt towards water and panicked and jumped off on to ground and twisted left knee. Dragline did partially go into water on one side.

June 4, 2019 MI · Metal/Non-Metal barge/boat/dredge/towbarge/towboat/leach operator, riverman, deck hand SLIP OR FALL OF PERSON
Gerken Materials Inc. · Fall to the walkway or working surface

EMPLOYEE WAS CHECKING A PLUGGED SAND PUMP AND STEPPED ON A HATCH COVER THAT WAS NOT SECURED, FALLING DOWN AND SCRAPED FOREARM, SHIN AND TWISTED LOWER BACK. EMPLOYEE CONTINUED TO WORK UNTIL 06/19/2019 WHEN STARTED HAVING PROBLEMS WITH LEFT SHOULDER AND HAD IT CHECKED AND WAS TOLD IT WAS A SPRAIN AND PUT ON RESTRICTIONS OF RIGHT HAND USE ONLY.

1998 · 3 incidents

April 23, 1998 MI · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer STRIKING OR BUMPING
Sylvester Material Company, Inc. · Struck against stationary object

LACERATION TO CORNER OF R. EYE. TURNED IN TO ANGLE IRON

January 9, 1998 MI · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Sylvester Material Company, Inc. · Struck by falling object

A ROLL OF WIRE FELL OFF A STAND LANDING ON HIS FOOT WHILE UNROLLING A SPOOL OF WIRE THE SUPPORTPIPE BOWED ALLOWING THE SPOOL TO FALL ONTO HIS FOOT