Mining Incidents

North Pit: 5 MSHA citations Metal/Non-Metal

Mike's Sand & Gravel · Surface
Controlled by Michael L. Eisbrenner
Hackensack, Cass County, MN  ·  Intermittent
MSHA Mine ID: 2103594

North Pit has $643 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2013
5
citations
1
significant & substantial
$643
proposed penalties
$643
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
22
inspections on record
113
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: 113 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

North Pit has $643 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.
$643
proposed penalties
$643
current assessed
$643
paid to date
$0
outstanding
5 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2014-10-08.
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.
20.0%
significant & substantial
0.0%
high negligence or reckless
20.0%
reasonably likely or greater
40.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 60.0% low, 40.0% moderate, 0.0% high, 0.0% reckless.
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: 2010-06-22, 16 years ago
0%
of limit-tested samples over the exposure limit
1
samples
1
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz1
Show the individual readings (1)
Date Contaminant Concentration Limit Conc / limit Occupation
2010-06-22 Quartz, respirable, >1% Qtz 0.19 0.56 0.34 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.
Ownership history
  1. Mike's Sand & Gravel 2007 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 1
2025 1
2024 2
2023 2
2022 2
2021 2
2020 2
2019 2
2018 2
2017 2
2016 2
2015 2
2014 2
2013 2
2012 2
2011 2
2010 2
2009 2
2008 2
2007 2
Source: MSHA quarterly employment and production, updated weekly.

North Pit sits in Cass County, Minnesota, where the Census mining category is 0.4% 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.
Cass County, Minnesota · Population 30,688
0.4%
Mining share of county employment
$64,937
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 10 0 0 0.0
2026 Q1 10 0 0 0.0
2025 Q4 10 0 0 0.0
2025 Q3 10 0 0 0.0
2025 Q2 10 0 0 0.0
2025 Q1 10 0 0 0.0
2024 Q4 100 0 0 0.0
2024 Q3 162 0 0 0.0
Show 68 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 10 0 0 0.0
2024 Q1 10 0 0 0.0
2023 Q4 78 0 0 0.0
2023 Q3 244 0 0 0.0
2023 Q2 50 0 0 0.0
2023 Q1 10 0 0 0.0
2022 Q4 100 0 0 0.0
2022 Q3 244 0 0 0.0
2022 Q2 82 0 0 0.0
2022 Q1 10 0 0 0.0
2021 Q4 100 0 0 0.0
2021 Q3 244 0 0 0.0
2021 Q2 82 0 0 0.0
2021 Q1 10 0 0 0.0
2020 Q4 10 0 0 0.0
2020 Q3 244 0 0 0.0
2020 Q2 82 0 0 0.0
2020 Q1 10 0 0 0.0
2019 Q4 154 0 0 0.0
2019 Q3 244 0 0 0.0
2019 Q2 82 0 0 0.0
2019 Q1 10 0 0 0.0
2018 Q4 10 0 0 0.0
2018 Q3 354 0 0 0.0
2018 Q2 64 0 0 0.0
2018 Q1 10 0 0 0.0
2017 Q4 100 0 0 0.0
2017 Q3 244 0 0 0.0
2017 Q2 20 0 0 0.0
2017 Q1 10 0 0 0.0
2016 Q4 10 0 0 0.0
2016 Q3 278 0 0 0.0
2016 Q2 82 0 0 0.0
2016 Q1 10 0 0 0.0
2015 Q4 100 0 0 0.0
2015 Q3 354 0 0 0.0
2015 Q2 82 0 0 0.0
2015 Q1 10 0 0 0.0
2014 Q4 100 2 0 20000.0
2014 Q3 82 0 0 0.0
2014 Q2 82 0 0 0.0
2014 Q1 10 0 0 0.0
2013 Q4 29 1 0 34482.8
2013 Q3 265 2 1 7547.2
2013 Q2 80 0 0 0.0
2013 Q1 10 0 0 0.0
2012 Q4 80 0 0 0.0
2012 Q3 269 0 0 0.0
2012 Q2 114 0 0 0.0
2012 Q1 10 0 0 0.0
2011 Q4 80 0 0 0.0
2011 Q3 290 0 0 0.0
2011 Q2 73 0 0 0.0
2011 Q1 10 0 0 0.0
2010 Q4 80 0 0 0.0
2010 Q3 254 0 0 0.0
2010 Q2 120 0 0 0.0
2010 Q1 10 0 0 0.0
2009 Q4 66 0 0 0.0
2009 Q3 230 0 0 0.0
2009 Q2 128 0 0 0.0
2009 Q1 1 0 0 0.0
2008 Q4 129 0 0 0.0
2008 Q3 406 0 0 0.0
2008 Q2 66 0 0 0.0
2008 Q1 0 0 0
2007 Q4 137 0 0 0.0
2007 Q3 31 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.