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: 304 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 #20 has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
23 assessments are final orders; 1 contested dockets.
Of $600 in penalties contested before the Commission, $600 was upheld in final decisions.
As of the most recent assessment on 2025-07-17.
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.
6citations taken to the federal commission · 25% of citations on record
Settled
6 · 100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
0%
Penalty reduction in decided contests
$600 proposed, $600 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2012-05-08.
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: 2021-07-07, 5 years ago
4
samples
0
limit-tested
Most sampled contaminants
Respirable dust, <.1mg4
Show the individual readings (4)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2021-07-07
Respirable dust, <.1mg
0
Front-end Loader Operator
2017-10-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-09-18
Respirable dust, <.1mg
0
Washer Operator
2009-10-14
Respirable dust, <.1mg
0
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
1
2025
1
2024
1
2023
1
2022
1
2021
1
2020
2
2019
2
2018
1
2017
1
2016
1
2015
1
2014
1
2013
2
2012
1
2011
2
2010
1
2009
2
2008
1
2007
2
2006
1
2005
1
2004
3
2003
2
2002
1
2001
2
2000
2
Source: MSHA quarterly employment and production, updated weekly.
Plant #20 sits in Dubuque 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.
Dubuque County, Iowa · Population 98,948
0.0%
Mining share of county employment
$75,919
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
1,070
0
0
0.0
2026 Q1
32
0
0
0.0
2025 Q4
508
0
0
0.0
2025 Q3
805
1
0
1242.2
2025 Q2
903
0
0
0.0
2025 Q1
420
0
0
0.0
2024 Q4
307
0
0
0.0
2024 Q3
1,011
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
1,047
0
0
0.0
2024 Q1
100
0
0
0.0
2023 Q4
190
0
0
0.0
2023 Q3
806
0
0
0.0
2023 Q2
892
2
0
2242.2
2023 Q1
48
0
0
0.0
2022 Q4
635
0
0
0.0
2022 Q3
1,157
0
0
0.0
2022 Q2
974
0
0
0.0
2022 Q1
514
1
0
1945.5
2021 Q4
656
0
0
0.0
2021 Q3
956
0
0
0.0
2021 Q2
769
0
0
0.0
2021 Q1
135
0
0
0.0
2020 Q4
560
0
0
0.0
2020 Q3
1,319
0
0
0.0
2020 Q2
1,673
0
0
0.0
2020 Q1
1
0
0
0.0
2019 Q4
978
0
0
0.0
2019 Q3
1,148
0
0
0.0
2019 Q2
1,693
1
0
590.7
2019 Q1
56
0
0
0.0
2018 Q4
651
0
0
0.0
2018 Q3
970
0
0
0.0
2018 Q2
1,276
0
0
0.0
2018 Q1
1
0
0
0.0
2017 Q4
472
3
0
6355.9
2017 Q3
905
0
0
0.0
2017 Q2
1,060
0
0
0.0
2017 Q1
1
0
0
0.0
2016 Q4
498
0
0
0.0
2016 Q3
512
0
0
0.0
2016 Q2
908
0
0
0.0
2016 Q1
1
0
0
0.0
2015 Q4
752
0
0
0.0
2015 Q3
536
0
0
0.0
2015 Q2
519
0
0
0.0
2015 Q1
650
1
0
1538.5
2014 Q4
235
0
0
0.0
2014 Q3
1,186
0
0
0.0
2014 Q2
908
0
0
0.0
2014 Q1
1
0
0
0.0
2013 Q4
1,198
0
0
0.0
2013 Q3
1,613
0
0
0.0
2013 Q2
799
2
0
2503.1
2013 Q1
1
0
0
0.0
2012 Q4
1
0
0
0.0
2012 Q3
870
0
0
0.0
2012 Q2
730
0
0
0.0
2012 Q1
185
0
0
0.0
2011 Q4
1,872
1
0
534.2
2011 Q3
2,028
0
0
0.0
2011 Q2
983
6
0
6103.8
2011 Q1
26
0
0
0.0
2010 Q4
728
0
0
0.0
2010 Q3
859
0
0
0.0
2010 Q2
663
0
0
0.0
2010 Q1
152
0
0
0.0
2009 Q4
662
0
0
0.0
2009 Q3
981
4
0
4077.5
2009 Q2
2,016
0
0
0.0
2009 Q1
1,130
0
0
0.0
2008 Q4
846
0
0
0.0
2008 Q3
1,223
0
0
0.0
2008 Q2
1,005
0
0
0.0
2008 Q1
10
0
0
0.0
2007 Q4
1,081
0
0
0.0
2007 Q3
1,294
0
0
0.0
2007 Q2
1,079
0
0
0.0
2007 Q1
330
0
0
0.0
2006 Q4
1,154
0
0
0.0
2006 Q3
1,137
0
0
0.0
2006 Q2
859
0
0
0.0
2006 Q1
386
0
0
0.0
2005 Q4
874
0
0
0.0
2005 Q3
814
0
0
0.0
2005 Q2
632
0
0
0.0
2005 Q1
519
0
0
0.0
2004 Q4
1,879
0
0
0.0
2004 Q3
3,071
0
0
0.0
2004 Q2
2,109
0
0
0.0
2004 Q1
110
0
0
0.0
2003 Q4
1,474
0
0
0.0
2003 Q3
1,145
0
0
0.0
2003 Q2
2,747
0
0
0.0
2003 Q1
124
0
0
0.0
2002 Q4
840
0
0
0.0
2002 Q3
1,153
0
0
0.0
2002 Q2
761
0
0
0.0
2002 Q1
105
0
0
0.0
2001 Q4
1,513
0
0
0.0
2001 Q3
964
0
0
0.0
2001 Q2
1,246
1
0
802.6
2001 Q1
485
0
0
0.0
2000 Q4
0
0
0
2000 Q3
1,250
0
0
0.0
2000 Q2
767
0
0
0.0
2000 Q1
1
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
14 on file
2017 · 1 incident
October 24, 2017IA · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
THERE WAS A HOLE IN THE HOSE AT THE SLURRY PUMP THAT NEEDED REPAIR. THE DAMAGED SECTION WAS CUT OFF. THERE WERE THREE PROTRUDING WIRES STICKING OUT FROM THE END ABOUT 1/4". THE RUBBER PIPE IS REINFORCED WITH THE WIRE. THE HOSE BEGAN TO SLIP FROM THE EMBANKMENT, THE MINER TRIED TO GRAB IT WHICH RESULTED IN A PUNCTURE IN HIS PALM BY THE WIRE.
WHILE CHIPPING FLUX FROM A WELD A PIECE OF FLUX POPPED UP & INTO HIS EYE. INJURED INDICATES THAT AFTER SEVERAL ATTEMPTS TO WASH IT OUT HE WAS UNSUCCESSFUL. HE SOUGHT MEDICAL TREATMENT THE NEXT MORNING.
August 6, 1993IA · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
OPENING DOOR ON UNIVERSAL CRUSHER & SMASHED HIS RING FINGER ON LEFT HAND-TAKEN TO OUTPATIENTS AT FINLEY HOSPITAL-ONE STITCHES WAS REQUIRED & WAS BUNDAGED.
1992 · 3 incidents
September 30, 1992IA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorMACHINERY
SPRAINED ANKLE WHEN HE JUMPED OFF THE BACKHOE WHEN A ROCK FELL DOWN ON THE MACHINE AND HIT THE RADIATOR-PEOPLE WERE WORKING ON TOP OF THE HIGHWALL AND DID NOT SEE HIM BELOW.
1991 · 1 incident
January 7, 1991IA · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS