Mining Incidents

#162 CEC ROADRUNNER: 8 MSHA citations Metal/Non-Metal

Shakopee, Scott County, MN  ·  Intermittent
MSHA Mine ID: 2103410

#162 CEC ROADRUNNER has $1K 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 2009
8
citations
2
significant & substantial
$1,058
proposed penalties
$1,058
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2004
23
inspections on record
145
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: 145 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

#162 CEC ROADRUNNER has $1K 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.
$1K
proposed penalties
$1K
current assessed
$1K
paid to date
$0
outstanding
8 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2024-11-19.
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.
25.0%
significant & substantial
0.0%
high negligence or reckless
25.0%
reasonably likely or greater
50.0%
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.
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: 2023-10-18
5
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg5
Show the individual readings (5)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-10-18 Respirable dust, <.1mg 0 Screen/Scalper Operator
2020-06-02 Respirable dust, <.1mg 0 Screen/Scalper Operator
2016-11-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-12-06 Respirable dust, <.1mg 0 Crusher Oper/Worker
2004-09-28 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.
Ownership history
  1. Wm. Mueller & Sons, Inc. 2004 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 2
2025 2
2024 2
2023 2
2022 2
2021 3
2020 3
2019 3
2018 4
2017 4
2016 5
2015 3
2014 2
2013 2
2012 1
2011 2
2010 1
2009 1
2008 2
2007 2
2006 2
2005 2
2004 1
Source: MSHA quarterly employment and production, updated weekly.

#162 CEC ROADRUNNER sits in Scott County, Minnesota, where the Census mining category is 0.3% 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.
Scott County, Minnesota · Population 152,957
0.3%
Mining share of county employment
$120,247
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 768 0 0 0.0
2026 Q1 0 0 0
2025 Q4 392 0 0 0.0
2025 Q3 1,241 0 0 0.0
2025 Q2 634 0 0 0.0
2025 Q1 0 0 0
2024 Q4 290 2 0 6896.6
2024 Q3 242 0 0 0.0
Show 81 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 210 0 0 0.0
2024 Q1 0 0 0
2023 Q4 286 0 0 0.0
2023 Q3 315 0 0 0.0
2023 Q2 240 0 0 0.0
2023 Q1 0 0 0
2022 Q4 0 0 0
2022 Q3 1 0 0 0.0
2022 Q2 85 0 0 0.0
2022 Q1 91 0 0 0.0
2021 Q4 360 0 0 0.0
2021 Q3 303 0 0 0.0
2021 Q2 153 0 0 0.0
2021 Q1 113 0 0 0.0
2020 Q4 247 0 0 0.0
2020 Q3 88 0 0 0.0
2020 Q2 148 0 0 0.0
2020 Q1 0 0 0
2019 Q4 880 0 0 0.0
2019 Q3 623 0 0 0.0
2019 Q2 354 1 0 2824.9
2019 Q1 254 0 0 0.0
2018 Q4 461 0 0 0.0
2018 Q3 436 0 0 0.0
2018 Q2 361 0 0 0.0
2018 Q1 740 0 0 0.0
2017 Q4 282 0 0 0.0
2017 Q3 563 0 0 0.0
2017 Q2 788 0 0 0.0
2017 Q1 5 0 0 0.0
2016 Q4 37 0 0 0.0
2016 Q3 136 0 0 0.0
2016 Q2 85 0 0 0.0
2016 Q1 239 0 0 0.0
2015 Q4 227 0 0 0.0
2015 Q3 315 0 0 0.0
2015 Q2 578 0 0 0.0
2015 Q1 267 0 0 0.0
2014 Q4 368 0 0 0.0
2014 Q3 475 0 0 0.0
2014 Q2 539 0 0 0.0
2014 Q1 14 0 0 0.0
2013 Q4 244 0 0 0.0
2013 Q3 284 0 0 0.0
2013 Q2 197 0 0 0.0
2013 Q1 0 0 0
2012 Q4 144 0 0 0.0
2012 Q3 172 0 0 0.0
2012 Q2 721 0 0 0.0
2012 Q1 134 0 0 0.0
2011 Q4 554 1 0 1805.1
2011 Q3 437 0 0 0.0
2011 Q2 223 0 0 0.0
2011 Q1 0 0 0
2010 Q4 199 1 1 5025.1
2010 Q3 240 0 0 0.0
2010 Q2 151 0 0 0.0
2010 Q1 0 0 0
2009 Q4 333 0 0 0.0
2009 Q3 119 0 0 0.0
2009 Q2 209 3 1 14354.1
2009 Q1 187 0 0 0.0
2008 Q4 274 0 0 0.0
2008 Q3 205 0 0 0.0
2008 Q2 158 0 0 0.0
2008 Q1 378 0 0 0.0
2007 Q4 303 0 0 0.0
2007 Q3 285 0 0 0.0
2007 Q2 253 0 0 0.0
2007 Q1 293 0 0 0.0
2006 Q4 158 0 0 0.0
2006 Q3 288 0 0 0.0
2006 Q2 462 0 0 0.0
2006 Q1 516 0 0 0.0
2005 Q4 8 0 0 0.0
2005 Q3 155 0 0 0.0
2005 Q2 420 0 0 0.0
2005 Q1 295 0 0 0.0
2004 Q4 549 0 0 0.0
2004 Q3 120 0 0 0.0
2004 Q2 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.