Portable Crushing Dept 415 has $21K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
1
Total incidents
15
Years on record
1992–2024
Latest incident
Nov 2024
Compliance record
MSHA citations since 2000
50
citations
13
significant & substantial
$20,959
proposed penalties
$20,959
paid to date
100% of proposed penalties paid to date, a $0 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: 922 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Portable Crushing Dept 415 has $21K in proposed MSHA penalties and $0 outstanding across 1 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.
$21K
proposed penalties
$21K
current assessed
$21K
paid to date
$0
outstanding
49 assessments are final orders; 1 contested dockets.
Of $15K in penalties contested before the Commission, $15K was upheld in final decisions.
As of the most recent assessment on 2025-03-26.
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.
4citations taken to the federal commission · 8% of citations on record
Settled
4 · 100%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
0%
Penalty reduction in decided contests
$15K proposed, $15K 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 2020-07-09.
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: 2023-09-19
0%
of limit-tested samples over the exposure limit
19
samples
13
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz8
Nuisance dust, respirable, <1% Qtz4
Respirable dust, <.1mg4
Nuisance dust, total, <1% Qtz3
Show the individual readings (19)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2023-09-19
Respirable dust, <.1mg
0
Truck Driver
2023-09-19
Respirable dust, <.1mg
0
Truck Driver
2021-06-02
Quartz, respirable, >1% Qtz
0.31
Truck Driver
2021-06-02
Quartz, respirable, >1% Qtz
0.73
1.7
0.43
Cleanup Man
2019-03-27
Nuisance dust, total, <1% Qtz
3.66
10
0.37
Truck Driver
2019-03-27
Quartz, respirable, >1% Qtz
0.37
Crusher Oper/Worker
2014-12-17
Nuisance dust, respirable, <1% Qtz
0.2
10
0.02
Truck Driver
2014-12-17
Nuisance dust, respirable, <1% Qtz
0.21
10
0.02
Cleanup Man
2012-03-28
Quartz, respirable, >1% Qtz
0.13
0.82
0.16
Truck Driver
2012-03-28
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-03-28
Quartz, respirable, >1% Qtz
0.13
1.05
0.12
Crusher Oper/Worker
2012-03-28
Respirable dust, <.1mg
0
Drill Operator, Rotary Air
2009-04-21
Nuisance dust, respirable, <1% Qtz
0.24
10
0.02
Truck Driver
2009-04-21
Quartz, respirable, >1% Qtz
0.71
2.57
0.28
Crusher Oper/Worker
2009-04-21
Nuisance dust, respirable, <1% Qtz
0.17
10
0.02
Truck Driver
2004-10-14
Quartz, respirable, >1% Qtz
0.18
1.53
0.12
Truck Driver
2004-10-14
Nuisance dust, total, <1% Qtz
2.43
10
0.24
Front-end Loader Operator
2004-10-14
Nuisance dust, total, <1% Qtz
3.9
10
0.39
Laborer, Bullgang
2004-10-14
Quartz, respirable, >1% Qtz
0.29
1.43
0.20
Truck Driver
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
9
2025
8
2024
9
2023
7
2022
8
2021
7
2020
8
2019
8
2018
7
2017
8
2016
7
2015
8
2014
8
2013
6
2012
5
2011
15
2010
19
2009
14
2008
23
2007
9
2006
9
2005
8
2004
6
2003
6
2002
6
2001
8
2000
14
Source: MSHA quarterly employment and production, updated weekly.
Portable Crushing Dept 415 sits in Clinton County, Iowa, where the Census mining category is 0.2% 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.
Clinton County, Iowa · Population 46,383
0.2%
Mining share of county employment
$65,177
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
6,182
0
0
0.0
2026 Q1
6,212
0
0
0.0
2025 Q4
5,307
0
0
0.0
2025 Q3
6,445
0
0
0.0
2025 Q2
5,406
0
0
0.0
2025 Q1
1,285
2
0
1556.4
2024 Q4
4,665
0
0
0.0
2024 Q3
5,148
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
4,476
2
0
446.8
2024 Q1
1,849
0
0
0.0
2023 Q4
3,830
0
0
0.0
2023 Q3
5,018
1
0
199.3
2023 Q2
5,052
0
0
0.0
2023 Q1
1,409
0
0
0.0
2022 Q4
3,278
0
0
0.0
2022 Q3
5,260
0
0
0.0
2022 Q2
5,342
0
0
0.0
2022 Q1
2,494
1
0
401.0
2021 Q4
4,960
0
0
0.0
2021 Q3
4,487
0
0
0.0
2021 Q2
4,851
2
0
412.3
2021 Q1
753
0
0
0.0
2020 Q4
4,030
0
0
0.0
2020 Q3
4,495
0
0
0.0
2020 Q2
5,133
3
1
584.5
2020 Q1
1,656
5
2
3019.3
2019 Q4
4,437
0
0
0.0
2019 Q3
5,070
0
0
0.0
2019 Q2
3,742
0
0
0.0
2019 Q1
4,641
0
0
0.0
2018 Q4
4,568
0
0
0.0
2018 Q3
5,592
0
0
0.0
2018 Q2
4,481
0
0
0.0
2018 Q1
1,240
1
0
806.5
2017 Q4
3,131
0
0
0.0
2017 Q3
6,388
0
0
0.0
2017 Q2
5,654
3
1
530.6
2017 Q1
2,238
0
0
0.0
2016 Q4
5,565
0
0
0.0
2016 Q3
6,303
3
3
476.0
2016 Q2
3,687
0
0
0.0
2016 Q1
108
0
0
0.0
2015 Q4
3,286
0
0
0.0
2015 Q3
1,982
0
0
0.0
2015 Q2
3,981
0
0
0.0
2015 Q1
719
0
0
0.0
2014 Q4
4,804
1
0
208.2
2014 Q3
5,115
0
0
0.0
2014 Q2
4,315
0
0
0.0
2014 Q1
82
0
0
0.0
2013 Q4
5,129
4
0
779.9
2013 Q3
4,198
0
0
0.0
2013 Q2
4,703
0
0
0.0
2013 Q1
2,036
0
0
0.0
2012 Q4
4,640
0
0
0.0
2012 Q3
3,840
0
0
0.0
2012 Q2
3,649
0
0
0.0
2012 Q1
1,950
4
3
2051.3
2011 Q4
5,580
1
0
179.2
2011 Q3
6,193
0
0
0.0
2011 Q2
5,980
2
0
334.4
2011 Q1
976
0
0
0.0
2010 Q4
5,063
0
0
0.0
2010 Q3
5,950
2
0
336.1
2010 Q2
5,708
0
0
0.0
2010 Q1
918
0
0
0.0
2009 Q4
4,690
0
0
0.0
2009 Q3
4,718
0
0
0.0
2009 Q2
5,202
0
0
0.0
2009 Q1
542
0
0
0.0
2008 Q4
4,949
0
0
0.0
2008 Q3
6,894
0
0
0.0
2008 Q2
3,409
0
0
0.0
2008 Q1
1,512
0
0
0.0
2007 Q4
4,672
1
0
214.0
2007 Q3
5,172
0
0
0.0
2007 Q2
5,778
0
0
0.0
2007 Q1
2,611
1
0
383.0
2006 Q4
4,894
0
0
0.0
2006 Q3
5,027
0
0
0.0
2006 Q2
5,425
0
0
0.0
2006 Q1
4,192
0
0
0.0
2005 Q4
5,089
6
2
1179.0
2005 Q3
5,813
0
0
0.0
2005 Q2
4,691
0
0
0.0
2005 Q1
1,490
0
0
0.0
2004 Q4
3,382
1
0
295.7
2004 Q3
3,599
0
0
0.0
2004 Q2
3,773
0
0
0.0
2004 Q1
1,227
0
0
0.0
2003 Q4
3,971
0
0
0.0
2003 Q3
4,021
0
0
0.0
2003 Q2
3,376
0
0
0.0
2003 Q1
1,319
0
0
0.0
2002 Q4
3,533
0
0
0.0
2002 Q3
3,631
0
0
0.0
2002 Q2
3,733
0
0
0.0
2002 Q1
1,561
0
0
0.0
2001 Q4
3,952
0
0
0.0
2001 Q3
3,725
0
0
0.0
2001 Q2
4,164
0
0
0.0
2001 Q1
2,740
0
0
0.0
2000 Q4
4,450
1
1
224.7
2000 Q3
4,869
0
0
0.0
2000 Q2
4,644
0
0
0.0
2000 Q1
2,879
2
0
694.7
Fatalities at this mine
1 recorded
January 8, 2020IA · Metal/Non-Metalquality control technician, laboratory technician, laboratory assistantFatality · SLIP OR FALL OF PERSON
While operating hand valve on dewatering equipment, employee slipped on muddy ground and struck knee against the pipe flange causing two small (approximately 1") lacerations. Employee went to ER and they closed the wound with medical adhesive, gave EE a prescription antibiotic and returned EE to full duty immediately.
Employee was unhooking a trailer from a pickup. The ball was stuck in the cast, the employee stepped on the bumper to release it and it rolled slightly and caught his left foot between the hitch and bumper. Employee was taken to the doctor and has a contusion of the left foot.
June 10, 2010IA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
Wendling Quarries Inc · Caught in, under or between a moving and a stationary object
Three Employees were loading metal panels on to a trailer. Each employee was holding a corner. When the panel was put down, it smashed one of the employee's middle left finger, causing a laceration to the nail bed.
Wendling Quarries Inc · Caught in, under or between a moving and a stationary object
Injury was operating a bull dozer and he was hooking a lime bin to the dozer so the bin could be moved. After the bin was hooked up and ready to move he noticed a rock underneath a wheel on the bin and attempted to remove it. As he did this the dozer pulled forward. The wheel went over his arm, shoulder, back, and center of his body.
Employee had stockpile truck with concrete stone. Went to scale to weigh and forgot to dump his load at stockpile. EE started down road to the pit. He was not going very fast but weight of truck and decline made it difficult to stop. He came to curve and truck tipped over. He was wearing seatbelt. He climbed out and was taken to hospital for x-rays and stitches.
2004 · 1 incident
October 12, 2004IA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorSLIP OR FALL OF PERSON
PLANT HAD SHUT DOWN AND EE WAS CLEANING ROCKS OFF CONVEYOR BELT. HE HAD 3 POINTS OF CONTACT ON CONVEYOR AS HE WAS CLIMBING DOWN. HIS FOOT SLIPPED ON A TIRE AND HIS FINGER CAUGHT ON A SHARP CORNER AND SLICED HIS LEFT RING FINGER, REQUIRING 9 STITCHES.
EMPLOYE EINJURED HIS LEFT HAND AN DWRSIT WHEN IT WAS CAUGHT IN THE DRIVE SPROCKE TOF A BIN CONVEYOR. THE EMPLOYEE HAD BEEN INSTRUCTED TO NOT SERVICE THE BIN CONVEYOR JUST PRIOR TO THE INCIDE NT.
1992 · 1 incident
May 1, 1992IA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDTOOLS (NONPOWERED)