Mining Incidents

Portable Plant: 33 MSHA citations Metal/Non-Metal

Murphy-Bents Joint Venture · Surface
Worthington, Nobles County, MN  ·  Abandoned
MSHA Mine ID: 2103184

Portable Plant has $4K 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
33
citations
6
significant & substantial
$3,728
proposed penalties
$3,728
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
27
inspections on record
209
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: 209 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Portable Plant has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
33 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2011-11-28.
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.
18.2%
significant & substantial
3.0%
high negligence or reckless
18.2%
reasonably likely or greater
81.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 12.1% low, 84.8% 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: 2009-04-28, 17 years ago
0%
of limit-tested samples over the exposure limit
2
samples
1
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2009-04-28 Quartz, respirable, >1% Qtz 0.13 1.36 0.10 Front-end Loader Operator
2004-05-19 Unlisted Particulate, respirable, <1% Qtz 0.14 Crusher Oper/Worker
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. Murphy-Bents Joint Venture 1998 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2012 0
2011 2
2010 2
2009 3
2008 3
2007 3
2006 2
2005 2
2004 3
2003 2
2002 2
2001 2
2000 2
Source: MSHA quarterly employment and production, updated weekly.

Portable Plant sits in Nobles County, Minnesota, where the Census mining category is 0.0% 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.
Nobles County, Minnesota · Population 22,067
0.0%
Mining share of county employment
$65,509
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
2012 Q1 0 0 0
2011 Q3 42 3 0 71428.6
2011 Q2 9 0 0 0.0
2011 Q1 5 0 0 0.0
2010 Q4 3 0 0 0.0
2010 Q3 170 0 0 0.0
2010 Q2 10 0 0 0.0
2010 Q1 9 0 0 0.0
Show 39 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2009 Q4 611 4 2 6546.6
2009 Q3 1,005 0 0 0.0
2009 Q2 782 1 0 1278.8
2009 Q1 5 0 0 0.0
2008 Q4 646 0 0 0.0
2008 Q3 1,071 0 0 0.0
2008 Q2 796 1 0 1256.3
2008 Q1 1 0 0 0.0
2007 Q4 508 0 0 0.0
2007 Q3 1,316 0 0 0.0
2007 Q2 1,389 1 0 719.9
2007 Q1 2 0 0 0.0
2006 Q4 458 0 0 0.0
2006 Q3 1,122 0 0 0.0
2006 Q2 726 0 0 0.0
2006 Q1 1 0 0 0.0
2005 Q4 501 1 0 1996.0
2005 Q3 1,077 0 0 0.0
2005 Q2 794 3 2 3778.3
2005 Q1 0 0 0
2004 Q4 666 0 0 0.0
2004 Q3 328 0 0 0.0
2004 Q2 981 3 0 3058.1
2004 Q1 1 0 0 0.0
2003 Q4 429 0 0 0.0
2003 Q3 819 5 2 6105.0
2003 Q2 606 0 0 0.0
2003 Q1 0 0 0
2002 Q4 461 0 0 0.0
2002 Q3 1,039 0 0 0.0
2002 Q2 561 4 0 7130.1
2002 Q1 0 0 0
2001 Q4 614 0 0 0.0
2001 Q3 984 6 0 6097.6
2001 Q2 517 0 0 0.0
2001 Q1 0 0 0
2000 Q4 379 0 0 0.0
2000 Q3 786 0 0 0.0
2000 Q2 714 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.