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: 220 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Koch's South has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
12 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-10-16.
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: 2016-04-20, 10 years ago
0%
of limit-tested samples over the exposure limit
2
samples
1
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz1
Respirable dust, <.1mg1
Show the individual readings (2)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2016-04-20
Quartz, respirable, >1% Qtz
0.13
0.38
0.34
Front-end Loader Operator
2016-04-20
Respirable dust, <.1mg
0
Dredge/Barge Operator
Area samples (mill and shop air)
Last sampled: 2015-06-29, 11 years ago
1
samples
Show the individual readings (1)
Date
Contaminant
Concentration
Limit
Conc / limit
Area sampled
2015-06-29
Respirable dust, <.1mg
0
SF ORE PROCESSING
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
3
2022
3
2021
3
2020
3
2019
3
2018
3
2017
3
2016
3
2015
4
2014
3
2013
2
2012
5
2011
3
2010
3
2009
3
2008
3
2007
3
2006
2
2005
3
2004
3
2003
3
2002
2
2001
3
2000
2
Source: MSHA quarterly employment and production, updated weekly.
Koch's South sits in Dawson County, Nebraska, 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.
Dawson County, Nebraska · Population 24,020
0.1%
Mining share of county employment
$65,383
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
24
0
0
0.0
2024 Q4
1,218
0
0
0.0
2024 Q3
1,974
0
0
0.0
2024 Q2
1,569
0
0
0.0
2024 Q1
753
0
0
0.0
2023 Q4
1,647
1
0
607.2
2023 Q3
1,665
0
0
0.0
2023 Q2
1,931
0
0
0.0
Show 92 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q1
423
0
0
0.0
2022 Q4
889
0
0
0.0
2022 Q3
1,820
0
0
0.0
2022 Q2
1,275
0
0
0.0
2022 Q1
97
0
0
0.0
2021 Q4
1,501
0
0
0.0
2021 Q3
2,229
0
0
0.0
2021 Q2
1,772
0
0
0.0
2021 Q1
590
0
0
0.0
2020 Q4
1,312
1
0
762.2
2020 Q3
1,479
0
0
0.0
2020 Q2
1,187
0
0
0.0
2020 Q1
10
0
0
0.0
2019 Q4
972
0
0
0.0
2019 Q3
1,652
0
0
0.0
2019 Q2
1,310
0
0
0.0
2019 Q1
30
0
0
0.0
2018 Q4
1,137
1
0
879.5
2018 Q3
1,380
0
0
0.0
2018 Q2
1,172
0
0
0.0
2018 Q1
12
0
0
0.0
2017 Q4
1,269
1
1
788.0
2017 Q3
1,541
0
0
0.0
2017 Q2
1,482
2
0
1349.5
2017 Q1
374
0
0
0.0
2016 Q4
980
0
0
0.0
2016 Q3
1,684
0
0
0.0
2016 Q2
1,195
0
0
0.0
2016 Q1
503
0
0
0.0
2015 Q4
1,287
0
0
0.0
2015 Q3
1,701
0
0
0.0
2015 Q2
1,308
1
0
764.5
2015 Q1
336
0
0
0.0
2014 Q4
681
0
0
0.0
2014 Q3
1,053
0
0
0.0
2014 Q2
656
0
0
0.0
2014 Q1
108
0
0
0.0
2013 Q4
606
0
0
0.0
2013 Q3
1,302
0
0
0.0
2013 Q2
537
0
0
0.0
2013 Q1
0
0
0
2012 Q4
996
0
0
0.0
2012 Q3
2,810
0
0
0.0
2012 Q2
3,144
0
0
0.0
2012 Q1
387
0
0
0.0
2011 Q4
1,204
0
0
0.0
2011 Q3
1,004
0
0
0.0
2011 Q2
1,160
0
0
0.0
2011 Q1
262
0
0
0.0
2010 Q4
793
1
0
1261.0
2010 Q3
1,164
1
0
859.1
2010 Q2
6
0
0
0.0
2010 Q1
153
0
0
0.0
2009 Q4
852
0
0
0.0
2009 Q3
1,931
0
0
0.0
2009 Q2
1,333
1
0
750.2
2009 Q1
52
0
0
0.0
2008 Q4
1,266
0
0
0.0
2008 Q3
2,326
0
0
0.0
2008 Q2
1,397
2
0
1431.6
2008 Q1
83
0
0
0.0
2007 Q4
1,184
0
0
0.0
2007 Q3
1,334
0
0
0.0
2007 Q2
1,379
0
0
0.0
2007 Q1
336
0
0
0.0
2006 Q4
1,183
0
0
0.0
2006 Q3
1,158
0
0
0.0
2006 Q2
993
0
0
0.0
2006 Q1
95
0
0
0.0
2005 Q4
1,086
0
0
0.0
2005 Q3
1,443
0
0
0.0
2005 Q2
924
0
0
0.0
2005 Q1
55
0
0
0.0
2004 Q4
1,221
0
0
0.0
2004 Q3
1,515
0
0
0.0
2004 Q2
1,337
0
0
0.0
2004 Q1
146
0
0
0.0
2003 Q4
669
0
0
0.0
2003 Q3
1,311
0
0
0.0
2003 Q2
920
0
0
0.0
2003 Q1
314
0
0
0.0
2002 Q4
990
0
0
0.0
2002 Q3
1,384
0
0
0.0
2002 Q2
1,279
0
0
0.0
2002 Q1
102
0
0
0.0
2001 Q4
1,211
0
0
0.0
2001 Q3
774
0
0
0.0
2001 Q2
1,585
0
0
0.0
2000 Q4
796
0
0
0.0
2000 Q3
1,204
0
0
0.0
2000 Q2
774
0
0
0.0
2000 Q1
240
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2008 · 1 incident
July 18, 2008NE · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Paulsen Inc · Fall from headframe, derrick or tower
EE was working from the catwalk attached to the sand separating unit on the aggregate gravity screening tower when the unit became out of balance and shifted knocking him over the guardrail causing him to fall approx 15 feet to the gravel pile below. He landed on his back causing bruises and a lacerated spleen.