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PLANT #31: 20 MSHA citations Metal/Non-Metal

Wabasha, MN, Wabasha County, MN  ·  Intermittent
MSHA Mine ID: 4703213

PLANT #31 has $2K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
7
Years on record
2003–2026
Latest incident
May 2026
Compliance record
MSHA citations since 2000
20
citations
3
significant & substantial
$2,050
proposed penalties
$2,050
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See MILESTONE MATERIALS DIV/MATHY CONSTRUCTION CO's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
31
inspections on record
390
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: 390 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

PLANT #31 has $2K in proposed MSHA penalties and $0 outstanding across 1 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
20 assessments are final orders; 1 contested dockets.
Of $300 in penalties contested before the Commission, $200 was upheld in final decisions.
As of the most recent assessment on 2025-03-19.
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.
15.0%
significant & substantial
0.0%
high negligence or reckless
15.0%
reasonably likely or greater
35.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 50.0% low, 50.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
ⓘ Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
3 citations taken to the federal commission · 15% of citations on record
  • Settled 2 · 67%
  • Vacated or withdrawn 1 · 33%
33%
Penalty reduction in decided contests
$300 proposed, $200 after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2011-07-20.
Contested penalties
ⓘ A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
Docket Decision Judge Year Proposed / upheld
LAKE 2010-844M Settlement Manning 2012 $300 → $200
Source: FMSHRC civil penalty dockets and decisions (public record), 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: 2026-07-22
0%
of limit-tested samples over the exposure limit
10
samples
3
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg7
  • Quartz, respirable, >1% Qtz3
Show the individual readings (10)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-07-22 Respirable dust, <.1mg 0 Mechanic
2026-07-22 Respirable dust, <.1mg 0 Utility Man
2023-08-02 Respirable dust, <.1mg 0 Cleanup Man
2023-08-02 Respirable dust, <.1mg 0 Front-end Loader Operator
2023-08-02 Quartz, respirable, >1% Qtz 0.22 0.24 0.92 Front-end Loader Operator
2016-10-13 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-03-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-03-12 Respirable dust, <.1mg 0 Utility Man
2004-05-26 Quartz, respirable, >1% Qtz 0.21 0.49 0.43 Crusher Oper/Worker
2004-05-26 Quartz, respirable, >1% Qtz 0.13 0.84 0.15 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. Milestone Materials Div/Mathy Construction Co 1999 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 5
2025 5
2024 4
2023 3
2022 3
2021 4
2020 4
2019 5
2018 3
2017 4
2016 3
2015 3
2014 2
2013 2
2012 3
2011 3
2010 2
2009 3
2008 4
2007 3
2006 2
2005 2
2004 2
2003 2
2002 3
2001 3
2000 2
Source: MSHA quarterly employment and production, updated weekly.

PLANT #31 sits in Wabasha County, Minnesota, where the Census mining category is 0.2% 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.
Wabasha County, Minnesota · Population 21,519
0.2%
Mining share of county employment
$80,133
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 5,666 0 0 0.0
2026 Q1 1,282 0 0 0.0
2025 Q4 3,289 0 0 0.0
2025 Q3 4,671 0 0 0.0
2025 Q2 5,332 0 0 0.0
2025 Q1 2,739 1 0 365.1
2024 Q4 2,834 0 0 0.0
2024 Q3 4,472 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,982 0 0 0.0
2024 Q1 990 0 0 0.0
2023 Q4 2,396 0 0 0.0
2023 Q3 3,085 1 1 324.1
2023 Q2 3,448 0 0 0.0
2023 Q1 664 0 0 0.0
2022 Q4 2,556 0 0 0.0
2022 Q3 3,662 0 0 0.0
2022 Q2 3,215 0 0 0.0
2022 Q1 828 0 0 0.0
2021 Q4 3,285 0 0 0.0
2021 Q3 3,535 3 1 848.7
2021 Q2 4,049 0 0 0.0
2021 Q1 323 0 0 0.0
2020 Q4 2,537 0 0 0.0
2020 Q3 4,113 0 0 0.0
2020 Q2 4,183 0 0 0.0
2020 Q1 1,709 0 0 0.0
2019 Q4 4,113 0 0 0.0
2019 Q3 4,217 0 0 0.0
2019 Q2 5,420 1 0 184.5
2019 Q1 1,052 0 0 0.0
2018 Q4 2,092 0 0 0.0
2018 Q3 3,221 0 0 0.0
2018 Q2 3,471 0 0 0.0
2018 Q1 1,016 0 0 0.0
2017 Q4 3,353 0 0 0.0
2017 Q3 3,703 0 0 0.0
2017 Q2 3,545 0 0 0.0
2017 Q1 414 0 0 0.0
2016 Q4 902 0 0 0.0
2016 Q3 2,033 0 0 0.0
2016 Q2 2,080 0 0 0.0
2016 Q1 2,038 0 0 0.0
2015 Q4 1,839 0 0 0.0
2015 Q3 2,952 0 0 0.0
2015 Q2 2,461 0 0 0.0
2015 Q1 757 0 0 0.0
2014 Q4 550 0 0 0.0
2014 Q3 2,443 2 0 818.7
2014 Q2 1,522 0 0 0.0
2014 Q1 1 0 0 0.0
2013 Q4 463 0 0 0.0
2013 Q3 2,518 0 0 0.0
2013 Q2 2,274 0 0 0.0
2013 Q1 1,359 0 0 0.0
2012 Q4 1,162 0 0 0.0
2012 Q3 2,472 2 0 809.1
2012 Q2 2,942 0 0 0.0
2012 Q1 967 0 0 0.0
2011 Q4 468 0 0 0.0
2011 Q3 3,059 0 0 0.0
2011 Q2 2,496 0 0 0.0
2011 Q1 1,126 0 0 0.0
2010 Q4 240 0 0 0.0
2010 Q3 1,880 0 0 0.0
2010 Q2 1,040 0 0 0.0
2010 Q1 549 0 0 0.0
2009 Q4 1,709 2 0 1170.3
2009 Q3 2,894 0 0 0.0
2009 Q2 2,480 1 0 403.2
2009 Q1 798 0 0 0.0
2008 Q4 700 0 0 0.0
2008 Q3 4,061 0 0 0.0
2008 Q2 4,112 0 0 0.0
2008 Q1 1,321 0 0 0.0
2007 Q4 1,180 0 0 0.0
2007 Q3 3,417 0 0 0.0
2007 Q2 2,225 0 0 0.0
2007 Q1 853 0 0 0.0
2006 Q4 1,255 0 0 0.0
2006 Q3 1,376 3 0 2180.2
2006 Q2 810 0 0 0.0
2006 Q1 951 0 0 0.0
2005 Q4 1,150 0 0 0.0
2005 Q3 1,862 0 0 0.0
2005 Q2 2,451 0 0 0.0
2005 Q1 1,258 0 0 0.0
2004 Q4 983 0 0 0.0
2004 Q3 1,779 0 0 0.0
2004 Q2 2,392 2 1 836.1
2004 Q1 998 0 0 0.0
2003 Q4 1,610 0 0 0.0
2003 Q3 831 0 0 0.0
2003 Q2 2,695 0 0 0.0
2003 Q1 186 0 0 0.0
2002 Q4 635 0 0 0.0
2002 Q3 5,846 0 0 0.0
2002 Q2 1,451 0 0 0.0
2002 Q1 57 0 0 0.0
2001 Q4 1,684 0 0 0.0
2001 Q3 5,769 0 0 0.0
2001 Q2 1,109 0 0 0.0
2001 Q1 2,040 0 0 0.0
2000 Q4 1,167 0 0 0.0
2000 Q3 949 0 0 0.0
2000 Q2 697 1 0 1434.7
2000 Q1 543 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

7 on file

2026 · 1 incident

2023 · 1 incident

May 3, 2023 MN · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Milestone Materials Div/Mathy Construction Co · Caught in, under or between a moving and a stationary object

Operator had EE's hand pinched between a head pully and a bracket, resulting in a cut that required stitches to close the wound.

2022 · 1 incident

2021 · 1 incident

2017 · 2 incidents

November 16, 2017 MN · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Milestone Materials Div/Mathy Construction Co · Struck by... (Not Elsewhere Classified)

While removing discharge chute from conveyor, a piece of angle iron struck operator in the mouth resulting in a laceration that required 10 stitches to close and a temporary cap on a tooth that was cracked.

2003 · 1 incident