Mining Incidents

Portable #1: 12 MSHA citations Metal/Non-Metal

Cherokee County · Surface
Controlled by Cherokee County-IA
Cherokee, Cherokee County, IA  ·  Abandoned
MSHA Mine ID: 1302183

Portable #1 has $1K in proposed MSHA penalties and $17 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Portable #1.

Fatalities
0
Total incidents
1
Years on record
1994
Latest incident
Oct 1994
Compliance record
MSHA citations since 2001
12
citations
1
significant & substantial
$1,105
proposed penalties
$1,088
paid to date
99% of proposed penalties paid to date, a $17 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
27
inspections on record
182
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: 182 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 #1 has $1K in proposed MSHA penalties and $17 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
$17
outstanding
12 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2017-10-04.
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.
8.3%
significant & substantial
0.0%
high negligence or reckless
8.3%
reasonably likely or greater
41.7%
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: 2004-08-17, 22 years ago
0%
of limit-tested samples over the exposure limit
2
samples
1
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz1
  • Respirable dust, <.1mg1
Show the individual readings (2)
Date Contaminant Concentration Limit Conc / limit Occupation
2004-08-17 Respirable dust, <.1mg 0 Crusher Oper/Worker
2004-08-17 Quartz, respirable, >1% Qtz 0.17 0.45 0.38 Bulldozer 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. Kenneth L Mauer Construction Company 1991 to 1994
  2. Cherokee County 1994 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2019 1
2018 5
2017 2
2016 2
2015 5
2014 5
2013 2
2012 3
2011 2
2010 2
2009 3
2008 3
2007 3
2006 3
2005 3
2004 8
2003 5
2002 4
2001 6
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Portable #1 sits in Cherokee County, Iowa, 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.
Cherokee County, Iowa · Population 11,587
0.0%
Mining share of county employment
$64,478
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
2019 Q2 2 0 0 0.0
2019 Q1 2 0 0 0.0
2018 Q4 69 0 0 0.0
2018 Q3 2 0 0 0.0
2018 Q2 145 0 0 0.0
2018 Q1 42 0 0 0.0
2017 Q4 26 1 0 38461.5
2017 Q3 154 0 0 0.0
Show 67 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2017 Q1 1 0 0 0.0
2016 Q4 81 0 0 0.0
2016 Q3 652 1 0 1533.7
2016 Q2 352 0 0 0.0
2016 Q1 32 0 0 0.0
2015 Q4 496 0 0 0.0
2015 Q3 30 0 0 0.0
2015 Q2 625 2 0 3200.0
2015 Q1 223 0 0 0.0
2014 Q4 411 0 0 0.0
2014 Q3 384 0 0 0.0
2014 Q2 26 0 0 0.0
2014 Q1 62 0 0 0.0
2013 Q4 398 0 0 0.0
2013 Q3 58 0 0 0.0
2013 Q2 6 0 0 0.0
2013 Q1 10 0 0 0.0
2012 Q4 622 0 0 0.0
2012 Q3 180 0 0 0.0
2012 Q2 10 0 0 0.0
2012 Q1 128 1 1 7812.5
2011 Q4 516 0 0 0.0
2011 Q3 470 0 0 0.0
2011 Q2 7 0 0 0.0
2011 Q1 5 0 0 0.0
2010 Q4 484 0 0 0.0
2010 Q3 6 0 0 0.0
2010 Q2 186 0 0 0.0
2010 Q1 8 0 0 0.0
2009 Q4 376 2 0 5319.1
2009 Q3 685 1 0 1459.9
2009 Q2 305 0 0 0.0
2009 Q1 8 0 0 0.0
2008 Q3 284 0 0 0.0
2008 Q2 577 0 0 0.0
2008 Q1 6 0 0 0.0
2007 Q4 466 0 0 0.0
2007 Q3 788 0 0 0.0
2007 Q2 84 0 0 0.0
2007 Q1 166 0 0 0.0
2006 Q4 832 0 0 0.0
2006 Q3 430 0 0 0.0
2006 Q2 4 0 0 0.0
2005 Q4 622 0 0 0.0
2005 Q3 972 0 0 0.0
2005 Q2 72 0 0 0.0
2005 Q1 1,292 0 0 0.0
2004 Q4 263 1 0 3802.3
2004 Q3 263 1 0 3802.3
2004 Q2 320 0 0 0.0
2004 Q1 194 0 0 0.0
2003 Q4 280 0 0 0.0
2003 Q3 97 0 0 0.0
2003 Q2 431 0 0 0.0
2003 Q1 140 0 0 0.0
2002 Q4 1,247 0 0 0.0
2002 Q3 220 0 0 0.0
2002 Q2 80 0 0 0.0
2002 Q1 130 0 0 0.0
2001 Q4 544 0 0 0.0
2001 Q3 1,808 1 0 553.1
2001 Q2 280 0 0 0.0
2001 Q1 148 0 0 0.0
2000 Q4 120 0 0 0.0
2000 Q3 120 0 0 0.0
2000 Q2 240 0 0 0.0
2000 Q1 170 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

1 on file

1994 · 1 incident

October 19, 1994 IA · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger OTHER
Cherokee County · (Not Elsewhere Classified)

THERE WERE NO CONTRIBUTING CONDITIONS TO THE BEST OF MY KNOWLEDGE.