IMI Plymouth Sand & Gravel has $20K in proposed MSHA penalties and $153 outstanding across 2 contested dockets, plus health sampling and the full incident record.
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Fatalities
1
Total incidents
12
Years on record
1984–2023
Latest incident
Jul 2023
Compliance record
MSHA citations since 2000
119
citations
37
significant & substantial
$20,048
proposed penalties
$19,557
paid to date
98% of proposed penalties paid to date, a $491 gap.
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: 799 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
IMI Plymouth Sand & Gravel has $20K in proposed MSHA penalties and $153 outstanding across 2 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.
$20K
proposed penalties
$20K
current assessed
$20K
paid to date
$153
outstanding
117 assessments are final orders; 2 contested dockets.
Of $1K in penalties contested before the Commission, $788 was upheld in final decisions.
As of the most recent assessment on 2026-06-11.
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.
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.
3citations taken to the federal commission · 3% of citations on record
Settled
2 · 67%
Still open
1 · 33%
0%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
30%
Penalty reduction in decided contests
$1K proposed, $788 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 2026-08-12.
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.
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: 2026-06-11
0%
of limit-tested samples over the exposure limit
17
samples
9
limit-tested
Most sampled contaminants
Respirable dust, <.1mg8
Quartz, respirable, >1% Qtz7
Nuisance dust, total, <1% Qtz2
Show the individual readings (17)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2026-06-11
Respirable dust, <.1mg
0
Utility Man
2026-06-11
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-07-11
Respirable dust, <.1mg
0
Crusher Oper/Worker
2022-08-25
Respirable dust, <.1mg
0
Utility Man
2022-08-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-06-14
Quartz, respirable, >1% Qtz
0.19
0.96
0.20
Dragline Operator
2016-06-14
Quartz, respirable, >1% Qtz
0.29
0.8
0.36
Washer Operator
2016-06-14
Respirable dust, <.1mg
0
Truck Driver
2015-05-27
Nuisance dust, total, <1% Qtz
0.31
10
0.03
Truck Driver
2015-05-27
Nuisance dust, total, <1% Qtz
0.48
10
0.05
Washer Operator
2013-10-30
Quartz, respirable, >1% Qtz
0.2
0.79
0.25
Truck Driver
2013-10-30
Quartz, respirable, >1% Qtz
0.12
0.9
0.13
Truck Driver
2013-10-30
Quartz, respirable, >1% Qtz
0.13
0.88
0.15
Washer Operator
2013-10-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-05-05
Respirable dust, <.1mg
0
Washer Operator
2009-05-05
Quartz, respirable, >1% Qtz
0.19
0.91
0.21
Truck Driver
2002-05-15
Quartz, respirable, >1% Qtz
0.3
0.53
0.57
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
6
2025
7
2024
8
2023
7
2022
7
2021
8
2020
7
2019
7
2018
7
2017
9
2016
8
2015
9
2014
7
2013
7
2012
8
2011
7
2010
7
2009
7
2008
7
2007
8
2006
7
2005
7
2004
7
2003
7
2002
7
2001
7
2000
8
Source: MSHA quarterly employment and production, updated weekly.
IMI Plymouth Sand & Gravel sits in Marshall County, Indiana, where the Census mining category is 0.3% 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.
Marshall County, Indiana · Population 46,225
0.3%
Mining share of county employment
$68,041
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
3,228
3
0
929.4
2026 Q1
3,074
0
0
0.0
2025 Q4
2,963
0
0
0.0
2025 Q3
3,687
0
0
0.0
2025 Q2
4,976
0
0
0.0
2025 Q1
3,739
1
0
267.5
2024 Q4
3,528
0
0
0.0
2024 Q3
4,872
1
1
205.3
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
4,258
0
0
0.0
2024 Q1
3,100
0
0
0.0
2023 Q4
3,660
0
0
0.0
2023 Q3
4,092
0
0
0.0
2023 Q2
4,265
2
1
468.9
2023 Q1
3,419
0
0
0.0
2022 Q4
3,887
3
1
771.8
2022 Q3
3,975
0
0
0.0
2022 Q2
4,126
0
0
0.0
2022 Q1
3,296
0
0
0.0
2021 Q4
3,760
0
0
0.0
2021 Q3
3,730
0
0
0.0
2021 Q2
3,914
0
0
0.0
2021 Q1
2,642
0
0
0.0
2020 Q4
3,757
0
0
0.0
2020 Q3
4,244
0
0
0.0
2020 Q2
4,634
0
0
0.0
2020 Q1
2,752
0
0
0.0
2019 Q4
3,429
0
0
0.0
2019 Q3
4,348
0
0
0.0
2019 Q2
4,317
0
0
0.0
2019 Q1
2,580
0
0
0.0
2018 Q4
3,810
0
0
0.0
2018 Q3
4,692
0
0
0.0
2018 Q2
4,163
0
0
0.0
2018 Q1
2,947
1
0
339.3
2017 Q4
3,752
0
0
0.0
2017 Q3
5,578
0
0
0.0
2017 Q2
5,633
0
0
0.0
2017 Q1
3,639
0
0
0.0
2016 Q4
4,624
0
0
0.0
2016 Q3
4,573
0
0
0.0
2016 Q2
5,124
2
1
390.3
2016 Q1
3,769
0
0
0.0
2015 Q4
4,269
3
2
702.7
2015 Q3
5,480
0
0
0.0
2015 Q2
5,299
3
1
566.1
2015 Q1
3,043
0
0
0.0
2014 Q4
3,445
0
0
0.0
2014 Q3
3,967
0
0
0.0
2014 Q2
4,064
0
0
0.0
2014 Q1
1,735
0
0
0.0
2013 Q4
3,464
3
1
866.1
2013 Q3
4,050
0
0
0.0
2013 Q2
4,111
0
0
0.0
2013 Q1
1,362
6
1
4405.3
2012 Q4
2,319
0
0
0.0
2012 Q3
4,023
0
0
0.0
2012 Q2
3,912
0
0
0.0
2012 Q1
1,488
0
0
0.0
2011 Q4
2,694
21
6
7795.1
2011 Q3
3,963
0
0
0.0
2011 Q2
4,305
7
1
1626.0
2011 Q1
1,240
0
0
0.0
2010 Q4
3,688
0
0
0.0
2010 Q3
4,392
0
0
0.0
2010 Q2
4,475
0
0
0.0
2010 Q1
1,722
7
3
4065.0
2009 Q4
2,955
0
0
0.0
2009 Q3
3,466
0
0
0.0
2009 Q2
3,891
1
0
257.0
2009 Q1
907
0
0
0.0
2008 Q4
1,936
0
0
0.0
2008 Q3
3,731
0
0
0.0
2008 Q2
4,185
1
0
238.9
2008 Q1
1,443
0
0
0.0
2007 Q4
3,044
5
1
1642.6
2007 Q3
3,696
9
1
2435.1
2007 Q2
4,421
0
0
0.0
2007 Q1
1,813
0
0
0.0
2006 Q4
3,641
0
0
0.0
2006 Q3
3,814
0
0
0.0
2006 Q2
3,150
0
0
0.0
2006 Q1
1,575
0
0
0.0
2005 Q4
2,808
7
1
2492.9
2005 Q3
4,248
0
0
0.0
2005 Q2
4,152
0
0
0.0
2005 Q1
1,662
0
0
0.0
2004 Q4
2,611
3
1
1149.0
2004 Q3
3,583
0
0
0.0
2004 Q2
3,378
5
2
1480.2
2004 Q1
1,516
0
0
0.0
2003 Q4
2,584
0
0
0.0
2003 Q3
2,943
0
0
0.0
2003 Q2
3,751
0
0
0.0
2003 Q1
1,809
0
0
0.0
2002 Q4
2,868
5
3
1743.4
2002 Q3
3,658
0
0
0.0
2002 Q2
3,936
9
3
2286.6
2002 Q1
1,854
0
0
0.0
2001 Q4
3,241
0
0
0.0
2001 Q3
3,737
0
0
0.0
2001 Q2
4,034
0
0
0.0
2001 Q1
2,328
0
0
0.0
2000 Q4
3,204
0
0
0.0
2000 Q3
4,564
0
0
0.0
2000 Q2
4,036
8
5
1982.2
2000 Q1
1,930
0
0
0.0
Fatalities at this mine
1 recorded
November 17, 2014IN · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverFatality · SLIP OR FALL OF PERSON
The EE involved arrived 15 minutes before start time and went directly to his haul truck and started the truck. While in the shop the EE reported to another EE that he had slipped and fallen from his truck after it was started. He said he missed the bottom step and fell against the tire. He slid down the tire, striking his head on the concrete. He died on 11/27/2014.
Reportable incidents
11 on file (excluding fatalities above)
2023 · 1 incident
July 21, 2023IN · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EMPLOYEE WAS WELDING ON CRANE WHEN A PIECE OF WELDING SLAG FLEW INTO HIS LEFT EYE EMPLOYEE WAS WEARING SAFETY GLASSES & WELDING HELMET PIECE STILL GOT UNDER HIS GLASSES TO HIS EYE
April 5, 1994IN · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
EMPLOYEE WAS REMOVING A HANDRAIL ON THE PLANT WHENA PIECE OF METAL WAS TORN LOOSE CAUSING TH EEMPLOYEE'S RIGHT THUMBNAIL TO BE TORN OFF. THREE STITCHES WERE REQUIRED ON HIS THUMB.
1990 · 1 incident
April 3, 1990IN · Metal/Non-Metalgrader operator, roadgrader operatorMACHINERY
EE WAS GRINDING ON A PIECE OF METAL ON THE GRAVEL PLANT. FIND DUST PARTICLES OF METAL GOT UNDER HIS SAFETY GLASSES AND EMBEDDED IN ONE EYE. THE DUST IRRITATED HIS EYE AND THAT EVENING WHILE RU BBING THE EYE. HE SCRATCHED HIS EYEBALL. TWELVE HOURS LATER HE WENT TO THE DUKES MEMORIAL HOSP EMERGENCY RM IN PERU. IND. THEY ADVISED HIM TO SEE A SPCEICALIST WITHIN 12 HOURS IF NOT BETTER.
1988 · 1 incident
April 11, 1988IN · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)
EMPLOYEE HIT HI8 HEAD ON AN ANGLE IRON BRACE WHILE WORKING ON THE PLANT.
1984 · 1 incident
February 8, 1984IN · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
Rock Industries Inc · Caught in, under or between a moving and a stationary object
INJURED EMPLOYEE & ANOTHER EMPLOYEE WERE IN THE PROCESS OF ROTATING A HI-LIFT BUCKET THAT WAS BLOCKED UP AND ATTACHED BY CHAINS TO ANOTHER HI-LIFT BUCKET TO HOLD IT IN PLACE. THE INJURED MOVED BETWEEN THE BLOCKED BUCKET & THE HI-LIFT HOLDING THE BLOCKED BUCKET IN ORDER TO SPEED UP THE PROCESS OF UNHOOKING THE CHAINS TO MOVE THE BLOCKED BUCKET. WHEN HE STARTED TO RELEASE THE CHAINS