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: 237 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 #2 has $2K 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
14 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-11-03.
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.
Area samples (mill and shop air)
Last sampled: 2016-10-20, 9 years ago
2
samples
Show the individual readings (2)
Date
Contaminant
Concentration
Limit
Conc / limit
Area sampled
2016-10-20
Respirable dust, <.1mg
0
SF DREDGE/BARGE
2014-06-25
Respirable dust, <.1mg
0
SF ORE TRANSFER
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
2025
2
2024
2
2023
2
2022
3
2021
2
2020
3
2019
2
2018
2
2017
3
2016
3
2015
3
2014
3
2013
4
2012
4
2011
4
2010
5
2009
3
2008
3
2007
4
2006
4
2005
4
2004
4
2003
4
2002
4
2001
3
2000
4
Source: MSHA quarterly employment and production, updated weekly.
Portable #2 sits in Keith County, Nebraska, where the Census mining category is 2.1% 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.
Keith County, Nebraska · Population 8,239
2.1%
Mining share of county employment
$58,132
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
2025 Q1
33
0
0
0.0
2024 Q4
431
0
0
0.0
2024 Q3
991
0
0
0.0
2024 Q2
1,534
0
0
0.0
2024 Q1
1,181
0
0
0.0
2023 Q4
1,177
1
0
849.6
2023 Q3
1,267
0
0
0.0
2023 Q2
1,587
0
0
0.0
Show 91 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q1
638
0
0
0.0
2022 Q4
1,222
1
1
818.3
2022 Q3
1,584
0
0
0.0
2022 Q2
1,648
0
0
0.0
2022 Q1
165
0
0
0.0
2021 Q4
923
2
1
2166.8
2021 Q3
363
0
0
0.0
2021 Q2
0
0
0
2021 Q1
0
0
0
2020 Q4
10
0
0
0.0
2020 Q3
743
0
0
0.0
2020 Q2
1,142
1
0
875.7
2020 Q1
31
0
0
0.0
2019 Q4
10
0
0
0.0
2019 Q3
701
3
0
4279.6
2019 Q2
1,069
0
0
0.0
2019 Q1
10
0
0
0.0
2018 Q4
240
0
0
0.0
2018 Q3
411
0
0
0.0
2018 Q2
445
0
0
0.0
2018 Q1
12
0
0
0.0
2017 Q4
1,047
0
0
0.0
2017 Q3
1,150
0
0
0.0
2017 Q2
1,509
0
0
0.0
2017 Q1
1,003
0
0
0.0
2016 Q4
1,659
0
0
0.0
2016 Q3
1,168
0
0
0.0
2016 Q2
2,311
0
0
0.0
2016 Q1
293
0
0
0.0
2015 Q4
1,283
0
0
0.0
2015 Q3
1,371
0
0
0.0
2015 Q2
1,059
0
0
0.0
2015 Q1
606
0
0
0.0
2014 Q4
1,073
0
0
0.0
2014 Q3
1,606
0
0
0.0
2014 Q2
1,941
1
0
515.2
2014 Q1
180
0
0
0.0
2013 Q4
1,093
0
0
0.0
2013 Q3
1,584
0
0
0.0
2013 Q2
2,265
0
0
0.0
2013 Q1
314
0
0
0.0
2012 Q4
1,447
0
0
0.0
2012 Q3
2,134
0
0
0.0
2012 Q2
2,682
0
0
0.0
2012 Q1
585
0
0
0.0
2011 Q4
1,421
0
0
0.0
2011 Q3
2,110
0
0
0.0
2011 Q2
2,397
0
0
0.0
2011 Q1
773
0
0
0.0
2010 Q4
1,688
1
0
592.4
2010 Q3
1,743
0
0
0.0
2010 Q2
1,831
0
0
0.0
2010 Q1
478
0
0
0.0
2009 Q4
1,133
0
0
0.0
2009 Q3
1,581
0
0
0.0
2009 Q2
1,373
0
0
0.0
2009 Q1
330
0
0
0.0
2008 Q4
1,278
0
0
0.0
2008 Q3
1,968
0
0
0.0
2008 Q2
1,697
0
0
0.0
2008 Q1
619
1
1
1615.5
2007 Q4
1,753
0
0
0.0
2007 Q3
2,140
0
0
0.0
2007 Q2
1,648
0
0
0.0
2007 Q1
691
0
0
0.0
2006 Q4
1,666
1
0
600.2
2006 Q3
1,799
0
0
0.0
2006 Q2
1,832
2
0
1091.7
2006 Q1
1,309
0
0
0.0
2005 Q4
1,719
0
0
0.0
2005 Q3
1,789
0
0
0.0
2005 Q2
2,261
0
0
0.0
2005 Q1
1,153
0
0
0.0
2004 Q4
2,098
0
0
0.0
2004 Q3
2,415
0
0
0.0
2004 Q2
2,120
0
0
0.0
2004 Q1
978
0
0
0.0
2003 Q4
1,965
0
0
0.0
2003 Q3
2,368
0
0
0.0
2003 Q2
2,061
0
0
0.0
2003 Q1
1,057
0
0
0.0
2002 Q4
2,888
0
0
0.0
2002 Q3
2,783
0
0
0.0
2002 Q2
2,069
0
0
0.0
2002 Q1
477
0
0
0.0
2001 Q4
1,537
0
0
0.0
2001 Q3
1,987
0
0
0.0
2001 Q2
1,874
0
0
0.0
2001 Q1
384
0
0
0.0
2000 Q4
1,214
0
0
0.0
2000 Q2
2,756
0
0
0.0
Fatalities at this mine
1 recorded
August 18, 1983NE · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanFatality · SLIP OR FALL OF PERSON