Portable Crushing Plant #201 has $11K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
19
Years on record
1986–2025
Latest incident
Jul 2025
Compliance record
MSHA citations since 2000
91
citations
16
significant & substantial
$10,609
proposed penalties
$10,547
paid to date
99% of proposed penalties paid to date, a $62 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: 586 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 Plant #201 has $11K 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.
$11K
proposed penalties
$11K
current assessed
$11K
paid to date
$0
outstanding
90 assessments are final orders; 1 contested dockets.
Of $524 in penalties contested before the Commission, $462 was upheld in final decisions.
As of the most recent assessment on 2025-10-06.
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.
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.
2citations taken to the federal commission · 2% of citations on record
Settled
2 · 100%
50%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
12%
Penalty reduction in decided contests
$524 proposed, $462 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 2014-06-08.
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: 2026-05-13
4%
of limit-tested samples over the exposure limit
37
samples
27
limit-tested
Most sampled contaminants
Nuisance dust, total, <1% Qtz51 over
Quartz, respirable, >1% Qtz19
Respirable dust, <.1mg7
Nuisance dust, respirable, <1% Qtz6
Show the individual readings (37)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2019-04-16
Nuisance dust, total, <1% Qtz
16.16
10
1.62
Crusher Oper/Worker
2026-05-13
Nuisance dust, respirable, <1% Qtz
0.63
10
0.06
Crusher Oper/Worker
2026-05-13
Quartz, respirable, >1% Qtz
0.13
Front-end Loader Operator
2025-03-18
Respirable dust, <.1mg
0
Backhoe Operator
2025-03-18
Respirable dust, <.1mg
0
Truck Driver
2023-02-28
Respirable dust, <.1mg
0
Bulldozer Operator
2021-10-19
Nuisance dust, total, <1% Qtz
6.16
10
0.62
Crusher Oper/Worker
2021-10-19
Nuisance dust, respirable, <1% Qtz
0.34
10
0.03
Rotary Bucket Ex. Operator
2019-05-20
Nuisance dust, total, <1% Qtz
6.56
10
0.66
Crusher Oper/Worker
2019-04-16
Nuisance dust, total, <1% Qtz
5.01
10
0.50
Front-end Loader Operator
2019-04-16
Quartz, respirable, >1% Qtz
0.87
1.42
0.61
Truck Driver
2019-04-16
Quartz, respirable, >1% Qtz
0.13
Front-end Loader Operator
2019-04-16
Nuisance dust, total, <1% Qtz
0.82
10
0.08
Front-end Loader Operator
2018-03-27
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2018-03-27
Respirable dust, <.1mg
0
Truck Driver
2018-03-27
Quartz, respirable, >1% Qtz
0.18
Bobcat Operator
2015-03-31
Quartz, respirable, >1% Qtz
0.84
1.97
0.43
Front-end Loader Operator
2015-03-31
Quartz, respirable, >1% Qtz
1.01
1.46
0.69
Truck Driver
2015-03-31
Quartz, respirable, >1% Qtz
0.79
2.02
0.39
Front-end Loader Operator
2015-03-31
Quartz, respirable, >1% Qtz
0.61
1.55
0.39
Truck Driver
2014-03-19
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Truck Driver
2014-03-19
Nuisance dust, respirable, <1% Qtz
0.33
10
0.03
Crusher Oper/Worker
2014-03-19
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-03-19
Nuisance dust, respirable, <1% Qtz
0.17
10
0.02
Truck Driver
2013-04-03
Quartz, respirable, >1% Qtz
0.62
1.15
0.54
Crusher Oper/Worker
2013-04-03
Quartz, respirable, >1% Qtz
0.56
1.37
0.41
Truck Driver
2012-06-26
Quartz, respirable, >1% Qtz
0.15
1.01
0.15
Bulldozer Operator
2012-06-20
Quartz, respirable, >1% Qtz
0.76
1.62
0.47
Bulldozer Operator
2012-02-15
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
Front-end Loader Operator
2012-02-15
Quartz, respirable, >1% Qtz
0.18
1.05
0.17
Truck Driver
2010-03-17
Quartz, respirable, >1% Qtz
0.48
1.88
0.26
Front-end Loader Operator
2010-03-17
Quartz, respirable, >1% Qtz
0.2
0.98
0.20
Cleanup Man
2010-03-17
Quartz, respirable, >1% Qtz
0.23
1.6
0.14
Crusher Oper/Worker
2003-12-10
Quartz, respirable, >1% Qtz
0.18
1.68
0.11
Laborer, Bullgang
2003-12-10
Quartz, respirable, >1% Qtz
0.31
2.3
0.13
Crusher Oper/Worker
2003-12-10
Quartz, respirable, >1% Qtz
0.32
2.17
0.15
Laborer, Bullgang
2003-12-10
Respirable dust, <.1mg
0
Laborer, Bullgang
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.
Portable Crushing Plant #201 recorded 0.00 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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below 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 Iowa, metal and nonmetal mining averaged 2.19 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 *
0.00
0.00
0.000
2018 *
0.00
0.00
0.000
2017 *
8.54
8.54
0.000
2016 *
6.11
6.11
0.000
2015 *
0.00
0.00
0.000
2014 *
8.51
0.00
0.000
2013 *
0.00
0.00
0.000
2012 *
6.67
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
10
2025
9
2024
9
2023
9
2022
10
2021
10
2020
10
2019
11
2018
11
2017
11
2016
11
2015
11
2014
11
2013
11
2012
11
2011
11
2010
11
2009
11
2008
13
2007
13
2006
13
2005
13
2004
12
2003
12
2002
12
2001
12
2000
12
Source: MSHA quarterly employment and production, updated weekly.
Portable Crushing Plant #201 sits in Black Hawk County, Iowa, 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.
Black Hawk County, Iowa · Population 130,693
0.1%
Mining share of county employment
$64,581
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
7,633
0
0
0.0
2026 Q1
1,252
0
0
0.0
2025 Q4
2,399
4
1
1667.4
2025 Q3
5,469
0
0
0.0
2025 Q2
4,784
0
0
0.0
2025 Q1
3,029
1
0
330.1
2024 Q4
5,756
0
0
0.0
2024 Q3
5,072
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
5,544
0
0
0.0
2024 Q1
406
1
0
2463.1
2023 Q4
2,760
0
0
0.0
2023 Q3
5,877
0
0
0.0
2023 Q2
5,866
0
0
0.0
2023 Q1
2,819
0
0
0.0
2022 Q4
4,956
0
0
0.0
2022 Q3
5,791
0
0
0.0
2022 Q2
5,423
0
0
0.0
2022 Q1
2,624
0
0
0.0
2021 Q4
4,718
2
0
423.9
2021 Q3
5,979
1
0
167.3
2021 Q2
5,190
0
0
0.0
2021 Q1
802
0
0
0.0
2020 Q4
4,462
0
0
0.0
2020 Q3
5,651
0
0
0.0
2020 Q2
3,750
0
0
0.0
2020 Q1
2,122
0
0
0.0
2019 Q4
4,405
4
2
908.1
2019 Q3
5,141
0
0
0.0
2019 Q2
7,998
7
1
875.2
2019 Q1
2,978
0
0
0.0
2018 Q4
6,225
0
0
0.0
2018 Q3
7,582
0
0
0.0
2018 Q2
8,347
0
0
0.0
2018 Q1
2,982
2
0
670.7
2017 Q4
6,099
1
0
164.0
2017 Q3
6,421
0
0
0.0
2017 Q2
7,417
9
1
1213.4
2017 Q1
3,491
0
0
0.0
2016 Q4
8,198
0
0
0.0
2016 Q3
9,483
0
0
0.0
2016 Q2
9,443
0
0
0.0
2016 Q1
5,626
2
0
355.5
2015 Q4
7,056
0
0
0.0
2015 Q3
9,443
0
0
0.0
2015 Q2
8,555
0
0
0.0
2015 Q1
3,817
1
0
262.0
2014 Q4
6,571
0
0
0.0
2014 Q3
7,704
0
0
0.0
2014 Q2
7,637
0
0
0.0
2014 Q1
1,578
5
1
3168.6
2013 Q4
5,907
0
0
0.0
2013 Q3
10,356
1
0
96.6
2013 Q2
9,694
3
1
309.5
2013 Q1
3,805
0
0
0.0
2012 Q4
7,150
0
0
0.0
2012 Q3
8,503
0
0
0.0
2012 Q2
10,197
4
1
392.3
2012 Q1
4,150
2
1
481.9
2011 Q4
4,918
0
0
0.0
2011 Q3
7,271
0
0
0.0
2011 Q2
5,980
0
0
0.0
2011 Q1
2,548
0
0
0.0
2010 Q4
5,410
0
0
0.0
2010 Q3
6,507
0
0
0.0
2010 Q2
6,375
0
0
0.0
2010 Q1
1,800
1
0
555.6
2009 Q4
4,945
0
0
0.0
2009 Q3
7,327
0
0
0.0
2009 Q2
6,075
2
1
329.2
2009 Q1
1,449
0
0
0.0
2008 Q4
6,146
0
0
0.0
2008 Q3
7,443
0
0
0.0
2008 Q2
7,411
0
0
0.0
2008 Q1
3,983
4
1
1004.3
2007 Q4
6,850
0
0
0.0
2007 Q3
6,688
2
0
299.0
2007 Q2
6,284
0
0
0.0
2007 Q1
2,408
0
0
0.0
2006 Q4
6,631
0
0
0.0
2006 Q3
6,772
0
0
0.0
2006 Q2
7,011
0
0
0.0
2006 Q1
4,826
0
0
0.0
2005 Q4
5,979
2
0
334.5
2005 Q3
7,270
0
0
0.0
2005 Q2
8,494
2
0
235.5
2005 Q1
3,683
0
0
0.0
2004 Q4
5,841
0
0
0.0
2004 Q3
6,651
0
0
0.0
2004 Q2
7,044
0
0
0.0
2004 Q1
6,351
0
0
0.0
2003 Q4
4,608
3
0
651.0
2003 Q3
6,216
0
0
0.0
2003 Q2
7,093
1
0
141.0
2003 Q1
4,554
0
0
0.0
2002 Q4
6,222
0
0
0.0
2002 Q3
7,987
0
0
0.0
2002 Q2
7,573
0
0
0.0
2002 Q1
5,484
0
0
0.0
2001 Q4
5,594
0
0
0.0
2001 Q3
6,805
0
0
0.0
2001 Q2
7,156
3
0
419.2
2001 Q1
5,243
0
0
0.0
2000 Q4
7,128
0
0
0.0
2000 Q3
6,942
0
0
0.0
2000 Q2
9,334
0
0
0.0
2000 Q1
7,152
8
2
1118.6
No fatalities recorded at this mine.
Reportable incidents
19 on file
2025 · 1 incident
July 18, 2025IA · Metal/Non-Metalball/rod/pebble/hand/limestone/dry mill operator, roller operatorSLIP OR FALL OF PERSON
During loading of dollies onto the trailer, common practice to step over tongue of dolly to undo chains. While stepping over, EE tripped and landed on the trailer deck injuring a finger. Initial prognosis is broken finger.
BMC Aggregates LC · Caught in, under or between a moving and a stationary object
Employee was removing ladder from aggregate screening plant, got their finger pinched in hinge point on ladder. Laceration to index finger on right hand requiring stitches, no broken bones.
Replacing bearing on tail pulley of primary crusher. Driving bearing into place when piece of metal broke off and struck employee just above upper lip causing laceration which required two sutures.
Employee was helping replace a conveyor belt when the vise grips attached to the conveyor belt EE was pulling on came off of the belt causing EE to fall to the ground on some rocks.
2016 · 1 incident
December 20, 2016IA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
BMC Aggregates LC · Caught in, under or between a moving and a stationary object
Employee was trying to get the snow out of the dump truck box and pushing on the tailgate by hand. Did not get hand out of the way and smashed employee's right thumb in the tailgate.
2014 · 1 incident
September 15, 2014IA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
Climbing down a ladder on primary crusher, fuel hose slipped down and the nozzel hit his left third finger. Did not seek medical attention, thought that it was brusied. On 1-22-08, smashed end of left third finger between shovel handle and wheelbarrow. Went to the doctor on 1-23-08 and has a tuft facture.
EMPLOYEE REMOVI3G BREAKER BOX FROM ELECTRICITY WAS NOT SHUT OFF.RACHET SHORTED OUT CAUSING ELECTRIC ELECTRIC EXPLOSION.ELECTRIC EXPLOSION CAUSED FLASH BACK BURN.