Mining Incidents

Portable Crusher #1: 69 MSHA citations Metal/Non-Metal

Kruckow Rock & Ready Mix · Surface
Controlled by Gary A Kruckow
Houston, Houston County, MN  ·  Abandoned
MSHA Mine ID: 2102694

Portable Crusher #1 has $14K 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 2001
69
citations
18
significant & substantial
$13,650
proposed penalties
$13,650
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2001
52
inspections on record
473
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: 473 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2011-10-24.
On record since 2011.
Source: MSHA imminent-danger order records, updated weekly.

Portable Crusher #1 has $14K 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.
$14K
proposed penalties
$14K
current assessed
$14K
paid to date
$0
outstanding
67 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-09-17.
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.
26.9%
significant & substantial
3.0%
high negligence or reckless
26.9%
reasonably likely or greater
62.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 13.4% low, 83.6% moderate, 3.0% 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: 2011-08-11, 15 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
2011-08-11 Quartz, respirable, >1% Qtz 0.23 1.94 0.12 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. Kruckow Construction Company 1979 to 2004
  2. Kruckow Rock & Ready Mix 2004 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 0
2025 2
2024 2
2023 1
2022 2
2021 3
2020 3
2019 3
2018 3
2017 3
2016 3
2015 3
2014 3
2013 3
2012 3
2011 3
2010 3
2009 3
2008 2
2007 4
2006 3
2005 3
2004 5
2003 4
2002 4
2001 5
2000 5
Source: MSHA quarterly employment and production, updated weekly.

Portable Crusher #1 sits in Houston 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.
Houston County, Minnesota · Population 18,768
0.1%
Mining share of county employment
$77,087
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 0 0 0
2026 Q1 0 0 0
2025 Q4 80 0 0 0.0
2025 Q3 252 1 0 3968.3
2025 Q2 98 0 0 0.0
2025 Q1 0 0 0
2024 Q4 58 0 0 0.0
2024 Q3 64 0 0 0.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 104 1 0 9615.4
2024 Q1 4 0 0 0.0
2023 Q4 1 0 0 0.0
2023 Q3 1 0 0 0.0
2023 Q2 1 0 0 0.0
2023 Q1 1 0 0 0.0
2022 Q4 119 0 0 0.0
2022 Q3 110 0 0 0.0
2022 Q2 1 0 0 0.0
2022 Q1 1 0 0 0.0
2021 Q4 79 0 0 0.0
2021 Q3 123 1 0 8130.1
2021 Q2 4 0 0 0.0
2021 Q1 5 0 0 0.0
2020 Q4 254 0 0 0.0
2020 Q3 704 1 1 1420.5
2020 Q2 240 0 0 0.0
2020 Q1 1 0 0 0.0
2019 Q4 322 0 0 0.0
2019 Q3 542 1 1 1845.0
2019 Q2 258 4 1 15503.9
2019 Q1 1 0 0 0.0
2018 Q4 74 0 0 0.0
2018 Q3 222 0 0 0.0
2018 Q2 282 4 1 14184.4
2018 Q1 1 0 0 0.0
2017 Q4 345 0 0 0.0
2017 Q3 777 0 0 0.0
2017 Q2 224 0 0 0.0
2017 Q1 1 0 0 0.0
2016 Q4 398 0 0 0.0
2016 Q3 164 1 0 6097.6
2016 Q2 583 0 0 0.0
2016 Q1 1 0 0 0.0
2015 Q4 355 0 0 0.0
2015 Q3 435 0 0 0.0
2015 Q2 381 0 0 0.0
2015 Q1 1 0 0 0.0
2014 Q4 243 0 0 0.0
2014 Q3 691 3 0 4341.5
2014 Q2 200 1 0 5000.0
2014 Q1 1 0 0 0.0
2013 Q4 133 0 0 0.0
2013 Q3 751 0 0 0.0
2013 Q2 98 0 0 0.0
2013 Q1 2 0 0 0.0
2012 Q4 325 0 0 0.0
2012 Q3 824 0 0 0.0
2012 Q2 945 0 0 0.0
2012 Q1 2 0 0 0.0
2011 Q4 1,015 5 2 4926.1
2011 Q3 790 6 2 7594.9
2011 Q2 486 0 0 0.0
2011 Q1 2 0 0 0.0
2010 Q4 491 0 0 0.0
2010 Q3 710 7 5 9859.2
2010 Q2 404 0 0 0.0
2010 Q1 23 0 0 0.0
2009 Q3 893 0 0 0.0
2009 Q2 884 2 0 2262.4
2009 Q1 11 0 0 0.0
2008 Q4 20 0 0 0.0
2008 Q3 16 0 0 0.0
2008 Q2 44 5 1 113636.4
2008 Q1 14 0 0 0.0
2007 Q4 584 0 0 0.0
2007 Q3 264 1 0 3787.9
2007 Q2 656 0 0 0.0
2007 Q1 88 0 0 0.0
2006 Q4 1,558 0 0 0.0
2006 Q3 552 1 0 1811.6
2006 Q2 0 0 0
2006 Q1 969 4 3 4128.0
2005 Q4 332 0 0 0.0
2005 Q3 119 0 0 0.0
2005 Q2 226 0 0 0.0
2005 Q1 106 0 0 0.0
2004 Q4 2,157 0 0 0.0
2004 Q3 2,178 0 0 0.0
2004 Q2 2,399 0 0 0.0
2004 Q1 1,107 0 0 0.0
2003 Q4 1,879 0 0 0.0
2003 Q3 2,182 2 1 916.6
2003 Q2 3,325 0 0 0.0
2003 Q1 758 0 0 0.0
2002 Q4 2,270 0 0 0.0
2002 Q3 1,966 0 0 0.0
2002 Q2 2,032 4 0 1968.5
2002 Q1 468 0 0 0.0
2001 Q4 2,998 0 0 0.0
2001 Q3 3,125 0 0 0.0
2001 Q2 3,309 14 0 4230.9
2001 Q1 1,583 0 0 0.0
2000 Q4 2,040 0 0 0.0
2000 Q3 3,164 0 0 0.0
2000 Q2 3,007 0 0 0.0
2000 Q1 1,730 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.