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: 358 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Plant 11 has $5K in proposed MSHA penalties and $0 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.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
43 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2026-06-23.
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: 2025-04-29
0%
of limit-tested samples over the exposure limit
16
samples
7
limit-tested
Most sampled contaminants
Respirable dust, <.1mg8
Nuisance dust, respirable, <1% Qtz4
Quartz, respirable, >1% Qtz3
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (16)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-04-29
Respirable dust, <.1mg
0
Oiler, Greaser
2020-11-03
Nuisance dust, respirable, <1% Qtz
0.3
10
0.03
Cleanup Man
2020-11-03
Unlisted Particulate, respirable, <1% Qtz
0.2
Front-end Loader Operator
2020-11-03
Nuisance dust, respirable, <1% Qtz
0.16
10
0.02
Crusher Oper/Worker
2018-05-09
Respirable dust, <.1mg
0
Utility Man
2018-05-09
Nuisance dust, respirable, <1% Qtz
0.2
10
0.02
Crusher Oper/Worker
2018-05-09
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-12-02
Respirable dust, <.1mg
0
Oiler, Greaser
2009-12-02
Quartz, respirable, >1% Qtz
0.34
2.06
0.17
Crusher Oper/Worker
2002-09-18
Respirable dust, <.1mg
0
Oiler, Greaser
2002-09-18
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-09-18
Respirable dust, <.1mg
0
Crusher Oper/Worker
2002-09-18
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-06-12
Quartz, respirable, >1% Qtz
0.37
2.17
0.17
Crusher Oper/Worker
2001-06-12
Nuisance dust, respirable, <1% Qtz
0.29
10
0.03
Front-end Loader Operator
2001-06-12
Quartz, respirable, >1% Qtz
0.73
3.15
0.23
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
4
2025
3
2024
6
2023
9
2022
21
2021
6
2020
4
2019
5
2018
3
2017
3
2016
4
2015
4
2014
4
2013
3
2012
4
2011
4
2010
3
2009
3
2008
3
2007
4
2006
4
2005
4
2004
3
2003
3
2002
3
2001
3
2000
4
Source: MSHA quarterly employment and production, updated weekly.
Plant 11 sits in Worth County, Iowa, where the Census mining category is 0.4% 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.
Worth County, Iowa · Population 7,380
0.4%
Mining share of county employment
$76,875
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
2,035
2
0
982.8
2026 Q1
54
0
0
0.0
2025 Q4
1,251
0
0
0.0
2025 Q3
2,486
0
0
0.0
2025 Q2
2,789
1
0
358.6
2025 Q1
0
0
0
2024 Q4
2,749
0
0
0.0
2024 Q3
5,071
0
0
0.0
Show 96 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
4,731
2
0
422.7
2024 Q1
1
0
0
0.0
2023 Q4
4,008
0
0
0.0
2023 Q3
5,046
0
0
0.0
2023 Q2
3,619
0
0
0.0
2023 Q1
34
0
0
0.0
2022 Q4
2,023
0
0
0.0
2022 Q3
3,682
1
0
271.6
2022 Q2
2,602
0
0
0.0
2022 Q1
1
0
0
0.0
2021 Q4
1,291
0
0
0.0
2021 Q3
2,982
1
0
335.3
2021 Q2
1,450
0
0
0.0
2021 Q1
6
0
0
0.0
2020 Q4
562
1
0
1779.4
2020 Q3
4,705
2
0
425.1
2020 Q2
2,671
0
0
0.0
2020 Q1
1
0
0
0.0
2019 Q4
1,873
0
0
0.0
2019 Q3
3,766
0
0
0.0
2019 Q2
1,401
0
0
0.0
2019 Q1
1
0
0
0.0
2018 Q4
1,395
0
0
0.0
2018 Q3
1,785
0
0
0.0
2018 Q2
1,528
2
0
1308.9
2018 Q1
1
0
0
0.0
2017 Q4
1,109
0
0
0.0
2017 Q3
1,391
0
0
0.0
2017 Q2
1,330
2
0
1503.8
2017 Q1
1
0
0
0.0
2016 Q4
1,204
0
0
0.0
2016 Q3
1,305
5
1
3831.4
2016 Q2
1,053
0
0
0.0
2016 Q1
1
0
0
0.0
2015 Q4
1,188
0
0
0.0
2015 Q3
2,185
0
0
0.0
2015 Q2
1,651
0
0
0.0
2015 Q1
6
0
0
0.0
2014 Q4
1,181
0
0
0.0
2014 Q3
2,266
0
0
0.0
2014 Q2
280
0
0
0.0
2014 Q1
1
0
0
0.0
2013 Q4
910
1
0
1098.9
2013 Q3
1,348
0
0
0.0
2013 Q2
952
0
0
0.0
2013 Q1
2
0
0
0.0
2012 Q4
2,073
0
0
0.0
2012 Q3
2,263
0
0
0.0
2012 Q2
1,624
1
0
615.8
2012 Q1
1
0
0
0.0
2011 Q4
2,099
0
0
0.0
2011 Q3
1,903
0
0
0.0
2011 Q2
989
1
0
1011.1
2011 Q1
0
0
0
2010 Q4
1,395
0
0
0.0
2010 Q3
3,216
0
0
0.0
2010 Q2
1,521
0
0
0.0
2010 Q1
0
0
0
2009 Q4
54
3
1
55555.6
2009 Q3
1,872
1
0
534.2
2009 Q2
1,399
0
0
0.0
2009 Q1
0
0
0
2008 Q4
1,493
0
0
0.0
2008 Q3
2,777
0
0
0.0
2008 Q2
1,812
0
0
0.0
2008 Q1
412
0
0
0.0
2007 Q4
2,396
1
0
417.4
2007 Q3
3,254
0
0
0.0
2007 Q2
1,594
0
0
0.0
2007 Q1
0
0
0
2006 Q4
1,498
11
5
7343.1
2006 Q3
3,178
3
2
944.0
2006 Q2
3,248
0
0
0.0
2006 Q1
1
0
0
0.0
2005 Q4
1,398
0
0
0.0
2005 Q3
3,500
0
0
0.0
2005 Q2
2,982
0
0
0.0
2005 Q1
0
0
0
2004 Q4
1,371
0
0
0.0
2004 Q3
1,525
0
0
0.0
2004 Q2
2,036
0
0
0.0
2004 Q1
50
0
0
0.0
2003 Q4
2,028
0
0
0.0
2003 Q3
2,010
0
0
0.0
2003 Q2
276
0
0
0.0
2003 Q1
0
0
0
2002 Q4
1,162
0
0
0.0
2002 Q3
1,424
2
0
1404.5
2002 Q2
2,600
0
0
0.0
2002 Q1
0
0
0
2001 Q4
980
0
0
0.0
2001 Q3
3,638
0
0
0.0
2001 Q2
1,932
1
0
517.6
2001 Q1
0
0
0
2000 Q4
1,168
0
0
0.0
2000 Q3
1,859
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
8 on file
2018 · 1 incident
October 19, 2018IA · Metal/Non-Metalgreaser, grease man, oiler, lube man, dragline oilerSLIP OR FALL OF PERSON
EE was climbing a ladder to access a screen platform and exasperated a preexisting back injury. EE was treated at a chiropractor and did not lose time.
2008 · 1 incident
July 3, 2008IA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorMACHINERY
EE's left little finger was fractured when a 10" rock rolled down on his finger while he was clearing a rock jam in the crusher jaw. X-rays on the date of occurrence did not reveal the fracture.
Worker was cleaning out a feeder bin using a pry bar when a 4" rock rolled dowm and hit the top of his left hand causing a contusion and possible slight fracture.
April 12, 2006IA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorPOWERED HAULAGE
EMPLOYEE WAS TIGHTENING A SHANK BELT ON A 988G FRONT END LOADER BUCKET USING A 3/4" DRIVE RACH-ET AND SOCKET. THE RACHET BROKE CAUSING EMPLOYEETO FALL DOWN. EMPLOYEE LANDED ON HIS RIGHT HIP & HAS NECK PAIN.