NLC #1 has $4K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
1
Years on record
2017
Latest incident
Jun 2017
Compliance record
MSHA citations since 2000
34
citations
6
significant & substantial
$3,886
proposed penalties
$3,886
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
33
inspections on record
281
inspection hours
n/a
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: 281 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
NLC #1 has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
34 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2020-06-11.
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: 2025-06-25
0%
of limit-tested samples over the exposure limit
9
samples
4
limit-tested
Most sampled contaminants
Respirable dust, <.1mg5
Quartz, respirable, >1% Qtz3
Nuisance dust, respirable, <1% Qtz1
Show the individual readings (9)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2025-06-25
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
Dry Screen Plant Operator
2018-06-12
Respirable dust, <.1mg
0
Front-end Loader Operator
2011-09-08
Quartz, respirable, >1% Qtz
0.14
0.59
0.24
Crusher Oper/Worker
2011-09-08
Respirable dust, <.1mg
0
Front-end Loader Operator
2007-04-25
Quartz, respirable, >1% Qtz
0.27
0.49
0.55
Bulldozer Operator
2007-04-25
Quartz, respirable, >1% Qtz
0.37
1.22
0.30
Crusher Oper/Worker
2007-04-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2003-05-15
Respirable dust, <.1mg
0
Crusher Oper/Worker
2003-05-15
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
2
2025
3
2024
1
2023
0
2022
0
2021
1
2020
6
2019
0
2018
8
2017
6
2016
7
2015
5
2014
5
2013
7
2012
7
2011
5
2010
6
2009
1
2008
3
2007
5
2006
2
2005
6
2004
6
2003
4
2002
3
2001
2
2000
4
Source: MSHA quarterly employment and production, updated weekly.
NLC #1 sits in Dakota County, Minnesota, 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.
Dakota County, Minnesota · Population 442,204
0.0%
Mining share of county employment
$105,212
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
75
0
0
0.0
2025 Q4
223
0
0
0.0
2025 Q3
816
0
0
0.0
2025 Q2
76
0
0
0.0
2024 Q2
1
0
0
0.0
2024 Q1
1
0
0
0.0
2023 Q4
1
0
0
0.0
2023 Q3
0
0
0
Show 89 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q2
0
0
0
2023 Q1
0
0
0
2022 Q4
0
0
0
2022 Q3
0
0
0
2022 Q2
0
0
0
2022 Q1
0
0
0
2021 Q4
0
0
0
2021 Q3
0
0
0
2021 Q2
303
0
0
0.0
2021 Q1
0
0
0
2020 Q4
636
0
0
0.0
2020 Q3
674
0
0
0.0
2020 Q2
477
4
1
8385.7
2019 Q1
0
0
0
2018 Q4
3,022
0
0
0.0
2018 Q3
3,394
0
0
0.0
2018 Q2
1,599
3
1
1876.2
2017 Q4
555
0
0
0.0
2017 Q3
3,033
0
0
0.0
2017 Q2
356
2
0
5618.0
2017 Q1
1
0
0
0.0
2016 Q4
1,755
0
0
0.0
2016 Q3
3,011
3
0
996.3
2016 Q2
2,163
0
0
0.0
2016 Q1
1
0
0
0.0
2015 Q4
1,165
0
0
0.0
2015 Q3
2,636
1
0
379.4
2015 Q2
1,020
0
0
0.0
2015 Q1
1
0
0
0.0
2014 Q4
1,422
0
0
0.0
2014 Q3
2,496
2
0
801.3
2014 Q2
1,693
0
0
0.0
2014 Q1
1
0
0
0.0
2013 Q4
1,974
0
0
0.0
2013 Q3
1,719
0
0
0.0
2013 Q2
643
0
0
0.0
2013 Q1
40
0
0
0.0
2012 Q4
794
0
0
0.0
2012 Q3
2,575
0
0
0.0
2012 Q2
2,183
0
0
0.0
2012 Q1
143
0
0
0.0
2011 Q4
1,164
2
2
1718.2
2011 Q3
769
2
1
2600.8
2011 Q2
481
0
0
0.0
2011 Q1
1
0
0
0.0
2010 Q4
990
0
0
0.0
2010 Q3
960
0
0
0.0
2010 Q2
904
4
0
4424.8
2010 Q1
1
0
0
0.0
2009 Q4
1
0
0
0.0
2009 Q3
1
0
0
0.0
2009 Q2
1
0
0
0.0
2009 Q1
1
0
0
0.0
2008 Q4
1
0
0
0.0
2008 Q3
158
0
0
0.0
2008 Q2
780
1
0
1282.1
2008 Q1
1
0
0
0.0
2007 Q4
504
0
0
0.0
2007 Q3
1,448
0
0
0.0
2007 Q2
1,351
1
0
740.2
2007 Q1
0
0
0
2006 Q4
1
0
0
0.0
2006 Q3
0
0
0
2006 Q2
650
0
0
0.0
2006 Q1
1
0
0
0.0
2005 Q4
1,533
0
0
0.0
2005 Q3
3,310
0
0
0.0
2005 Q2
1,988
0
0
0.0
2005 Q1
466
0
0
0.0
2004 Q4
1,502
2
1
1331.6
2004 Q3
4,958
0
0
0.0
2004 Q2
3,338
0
0
0.0
2004 Q1
1
0
0
0.0
2003 Q4
3,130
2
0
639.0
2003 Q3
3,086
0
0
0.0
2003 Q2
1,330
2
0
1503.8
2003 Q1
0
0
0
2002 Q4
1,929
0
0
0.0
2002 Q3
2,237
0
0
0.0
2002 Q2
1,578
0
0
0.0
2002 Q1
0
0
0
2001 Q4
1,831
0
0
0.0
2001 Q3
1,868
0
0
0.0
2001 Q2
0
0
0
2001 Q1
11
0
0
0.0
2000 Q4
924
0
0
0.0
2000 Q3
1,448
2
0
1381.2
2000 Q2
1,481
0
0
0.0
2000 Q1
368
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2017 · 1 incident
June 20, 2017MN · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
Employee was fabricating a girder, when one of the I-beams tipped over onto said employee's ankle. Result of the accident employee's ankle was fractured and corrected by surgery that day.