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: 566 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
A-Plant has $11K in proposed MSHA penalties and $133 outstanding across 0 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
$10K
paid to date
$133
outstanding
53 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-03-04.
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.
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: 2024-05-01
0%
of limit-tested samples over the exposure limit
19
samples
12
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz8
Respirable dust, <.1mg6
Nuisance dust, respirable, <1% Qtz4
Nuisance dust, total, <1% Qtz1
Show the individual readings (19)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-05-01
Quartz, respirable, >1% Qtz
0.51
1.59
0.32
Cleanup Man
2024-05-01
Respirable dust, <.1mg
0
Truck Driver
2023-03-22
Nuisance dust, respirable, <1% Qtz
0.22
10
0.02
Utility Man
2023-03-22
Nuisance dust, respirable, <1% Qtz
0.22
10
0.02
Cleanup Man
2022-11-02
Nuisance dust, total, <1% Qtz
0.64
10
0.06
Truck Driver
2022-11-02
Respirable dust, <.1mg
0
Truck Driver
2022-11-02
Nuisance dust, respirable, <1% Qtz
0.65
10
0.07
Crusher Oper/Worker
2020-04-01
Respirable dust, <.1mg
0
Truck Driver
2020-04-01
Quartz, respirable, >1% Qtz
0.15
Cleanup Man
2017-06-14
Nuisance dust, respirable, <1% Qtz
0.22
10
0.02
Cleanup Man
2017-06-14
Respirable dust, <.1mg
0
Front-end Loader Operator
2013-04-02
Quartz, respirable, >1% Qtz
0.67
2.11
0.32
Crusher Oper/Worker
2013-04-02
Respirable dust, <.1mg
0
Truck Driver
2013-04-02
Respirable dust, <.1mg
0
Front-end Loader Operator
2013-04-02
Quartz, respirable, >1% Qtz
0.79
1.61
0.49
Crusher Oper/Worker
2010-03-24
Quartz, respirable, >1% Qtz
0.73
1.58
0.46
Truck Driver
2010-03-24
Quartz, respirable, >1% Qtz
1.21
2.31
0.52
Cleanup Man
2010-03-24
Quartz, respirable, >1% Qtz
0.47
1.69
0.28
Truck Driver
2010-03-24
Quartz, respirable, >1% Qtz
0.42
2.67
0.16
Utility Man
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.
A-Plant recorded 9.62 reportable injury cases per 100 full-time workers in 2022.
Injury rate, 2022
ⓘ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.
9.62
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.78 and the all-US-mining average was 2.12 cases per 100 workers.
In Iowa, metal and nonmetal mining averaged 2.80 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
2022 *
9.62
0.00
0.000
2016 *
8.52
0.00
0.000
2015 *
0.00
0.00
0.000
2013 *
9.65
0.00
0.000
2012 *
9.52
9.52
0.000
2011 *
6.38
0.00
0.000
2010 *
5.41
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
0
2025
7
2024
10
2023
9
2022
8
2021
7
2020
8
2019
8
2018
8
2017
8
2016
13
2015
14
2014
15
2013
13
2012
12
2011
18
2010
24
2009
11
2008
14
Source: MSHA quarterly employment and production, updated weekly.
A-Plant sits in Tama County, Iowa, 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.
Tama County, Iowa · Population 16,982
0.0%
Mining share of county employment
$67,955
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
0
0
0
2026 Q1
0
1
0
2025 Q4
1,970
0
0
0.0
2025 Q3
4,568
0
0
0.0
2025 Q2
4,628
0
0
0.0
2025 Q1
3,883
0
0
0.0
2024 Q4
4,639
1
0
215.6
2024 Q3
5,451
0
0
0.0
Show 65 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
4,433
1
0
225.6
2024 Q1
3,922
0
0
0.0
2023 Q4
5,568
2
0
359.2
2023 Q3
3,707
0
0
0.0
2023 Q2
4,618
0
0
0.0
2023 Q1
3,755
5
0
1331.6
2022 Q4
4,694
3
1
639.1
2022 Q3
5,888
0
0
0.0
2022 Q2
5,484
2
0
364.7
2022 Q1
4,731
0
0
0.0
2021 Q4
4,937
0
0
0.0
2021 Q3
4,908
0
0
0.0
2021 Q2
5,514
0
0
0.0
2021 Q1
3,219
0
0
0.0
2020 Q4
3,765
0
0
0.0
2020 Q3
4,931
0
0
0.0
2020 Q2
2,626
0
0
0.0
2020 Q1
2,601
2
0
768.9
2019 Q4
3,563
5
0
1403.3
2019 Q3
5,024
0
0
0.0
2019 Q2
4,759
1
0
210.1
2019 Q1
2,615
0
0
0.0
2018 Q4
3,918
0
0
0.0
2018 Q3
5,548
0
0
0.0
2018 Q2
4,632
1
0
215.9
2018 Q1
3,744
0
0
0.0
2017 Q4
2,939
0
0
0.0
2017 Q3
4,078
0
0
0.0
2017 Q2
2,668
1
0
374.8
2017 Q1
3,076
2
0
650.2
2016 Q4
3,918
0
0
0.0
2016 Q3
6,883
0
0
0.0
2016 Q2
7,066
0
0
0.0
2016 Q1
5,599
3
0
535.8
2015 Q4
7,210
0
0
0.0
2015 Q3
7,695
0
0
0.0
2015 Q2
7,208
0
0
0.0
2015 Q1
3,751
0
0
0.0
2014 Q4
5,018
0
0
0.0
2014 Q3
6,005
0
0
0.0
2014 Q2
2,763
1
0
361.9
2014 Q1
3,864
0
0
0.0
2013 Q4
4,938
0
0
0.0
2013 Q3
6,528
0
0
0.0
2013 Q2
6,240
0
0
0.0
2013 Q1
3,023
1
0
330.8
2012 Q4
5,517
0
0
0.0
2012 Q3
5,535
0
0
0.0
2012 Q2
6,804
0
0
0.0
2012 Q1
3,155
0
0
0.0
2011 Q4
8,378
3
1
358.1
2011 Q3
9,422
0
0
0.0
2011 Q2
10,569
0
0
0.0
2011 Q1
2,987
3
1
1004.4
2010 Q4
9,895
0
0
0.0
2010 Q3
9,985
0
0
0.0
2010 Q2
10,250
0
0
0.0
2010 Q1
6,819
2
0
293.3
2009 Q4
3,616
2
1
553.1
2009 Q3
5,201
0
0
0.0
2009 Q2
5,414
3
0
554.1
2009 Q1
1,719
0
0
0.0
2008 Q4
4,693
0
0
0.0
2008 Q3
7,340
1
0
136.2
2008 Q2
6,592
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
7 on file
2022 · 1 incident
November 2, 2022IA · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDLING OF MATERIALS
EE was assisting on the ground moving a stacker conveyor. The stacker was being moved with a front end loader. The stacker was moved into position and movement had stopped. EE unhooked chain from front end loader. Stacker started to move, edge of mud flap frame came into contact with right leg of EE causing a laceration which needed stitches.
2017 · 1 incident
July 10, 2017IA · Metal/Non-Metalquality control technician, laboratory technician, laboratory assistantOTHER
Hallett Materials · Absorption of radiations, caustics, toxic and noxious substances
Employee was stung in both hands by wasps when walking down a set of stairs. Employee's hand went past the open end of a handrail and the wasps had a small nest in the end of the handrail. Insect(Nonvenomous) wasp sting.
2016 · 1 incident
August 8, 2016IA · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
Employee was removing flashing from cross conveyor. He unbolted the holder and put up on screen deck. Caught middle finger between holder and screen box laceration had 8 stitches to close and a prescription for antibiotics.
On May 23rd, 2012 employee radioed his superintendent that he was having chest pains & trouble breathing. He asked to be taken to the emergency room, which he was. There he was given oral nitroglycerin and morphine. The super stayed until girlfriend arrived. This point on were told by EE this was personal med problem and not WC. On 6/15/12 his attorney told us was work related.
As box was reaching max angle ee felt truck began to lean to drivers side. Immediately began dropping the box. Truck laid over on its driver side door when the box was down to about half way. Hit knee on the door. Went to ER to be checked & returned to work w/o restriction. EE return to DR on 5/31/11 with knee pain. Crutches & immobilizer restriction.