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: 435 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
E9351 has $12K 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.
$12K
proposed penalties
$12K
current assessed
$12K
paid to date
$0
outstanding
96 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-14.
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: 2025-10-14
33%
of limit-tested samples over the exposure limit
14
samples
6
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz72 over
Respirable dust, <.1mg6
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (14)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2023-09-20
Quartz, respirable, >1% Qtz
0.79
0.79
1.00
Crusher Oper/Worker
2004-10-21
Quartz, respirable, >1% Qtz
11.54
0.82
14.07
Crusher Oper/Worker
2025-10-14
Respirable dust, <.1mg
0
Crusher Oper/Worker
2023-11-07
Quartz, respirable, >1% Qtz
0.13
0.74
0.18
Crusher Oper/Worker
2023-09-20
Quartz, respirable, >1% Qtz
0.3
0.83
0.36
Front-end Loader Operator
2020-05-20
Respirable dust, <.1mg
0
Front-end Loader Operator
2020-05-20
Quartz, respirable, >1% Qtz
0.26
Crusher Oper/Worker
2006-09-21
Respirable dust, <.1mg
0
Crusher Oper/Worker
2006-09-21
Unlisted Particulate, respirable, <1% Qtz
0.25
Front-end Loader Operator
2004-11-23
Quartz, respirable, >1% Qtz
0.8
0.82
0.98
Crusher Oper/Worker
2004-10-21
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-10-23
Quartz, respirable, >1% Qtz
0.48
0.51
0.94
Crusher Oper/Worker
2001-10-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2001-10-23
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
7
2025
7
2024
6
2023
8
2022
6
2021
7
2020
7
2019
6
2013
0
2012
3
2011
4
2010
2
2009
1
2008
1
2007
2
2006
2
2005
6
2004
3
2003
3
2002
2
2001
4
Source: MSHA quarterly employment and production, updated weekly.
E9351 sits in Carver County, Minnesota, 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.
Carver County, Minnesota · Population 108,622
0.1%
Mining share of county employment
$123,144
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
1,659
0
0
0.0
2025 Q4
1,433
1
0
697.8
2025 Q3
1,324
0
0
0.0
2025 Q2
2,029
0
0
0.0
2024 Q4
1,326
0
0
0.0
2024 Q3
2,320
0
0
0.0
2024 Q2
2,238
0
0
0.0
2024 Q1
63
0
0
0.0
Show 64 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q4
2,328
3
1
1288.7
2023 Q3
2,502
2
0
799.4
2023 Q2
2,135
0
0
0.0
2022 Q4
1,393
0
0
0.0
2022 Q3
2,057
0
0
0.0
2022 Q2
1,850
3
1
1621.6
2021 Q4
2,490
0
0
0.0
2021 Q3
2,659
0
0
0.0
2021 Q2
1,923
1
0
520.0
2020 Q4
2,121
0
0
0.0
2020 Q3
2,387
0
0
0.0
2020 Q2
1,908
3
1
1572.3
2019 Q4
1,719
0
0
0.0
2019 Q3
2,017
0
0
0.0
2019 Q2
1,755
1
0
569.8
2013 Q4
0
0
0
2013 Q3
0
0
0
2013 Q2
11
0
0
0.0
2013 Q1
0
0
0
2012 Q4
100
0
0
0.0
2012 Q3
312
0
0
0.0
2012 Q2
820
0
0
0.0
2012 Q1
46
0
0
0.0
2011 Q4
39
0
0
0.0
2011 Q3
2,001
7
2
3498.3
2011 Q2
8
0
0
0.0
2011 Q1
0
1
0
2010 Q4
295
0
0
0.0
2010 Q3
782
0
0
0.0
2010 Q2
578
0
0
0.0
2010 Q1
0
0
0
2009 Q4
3
0
0
0.0
2009 Q3
16
0
0
0.0
2009 Q2
30
0
0
0.0
2009 Q1
0
0
0
2008 Q4
723
3
0
4149.4
2008 Q3
44
0
0
0.0
2008 Q2
0
0
0
2008 Q1
0
0
0
2007 Q4
113
0
0
0.0
2007 Q3
220
0
0
0.0
2007 Q2
195
0
0
0.0
2007 Q1
0
1
0
2006 Q4
353
16
6
45325.8
2006 Q3
1,074
11
3
10242.1
2006 Q2
730
0
0
0.0
2006 Q1
0
0
0
2005 Q4
1,083
0
0
0.0
2005 Q3
3,172
0
0
0.0
2005 Q2
895
0
0
0.0
2005 Q1
0
0
0
2004 Q4
1,923
19
4
9880.4
2004 Q3
3,376
0
0
0.0
2004 Q2
2,614
0
0
0.0
2004 Q1
0
0
0
2003 Q4
1,804
9
2
4988.9
2003 Q3
3,035
1
0
329.5
2003 Q2
1,130
0
0
0.0
2003 Q1
0
0
0
2002 Q4
1,239
0
0
0.0
2002 Q3
3,147
0
0
0.0
2002 Q2
0
0
0
2002 Q1
0
0
0
2001 Q4
2,652
11
3
4147.8
No fatalities recorded at this mine.
Reportable incidents
2 on file
2024 · 1 incident
May 23, 2024MN · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDTOOLS (NONPOWERED)