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: 102 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 $116 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
$116
outstanding
10 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2017-03-21.
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.
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: 2010-07-28, 16 years ago
0%
of limit-tested samples over the exposure limit
2
samples
2
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz2
Show the individual readings (2)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2010-07-28
Quartz, respirable, >1% Qtz
0.13
0.99
0.13
Backhoe Operator
2010-07-28
Quartz, respirable, >1% Qtz
0.47
2.81
0.17
Laborer, Bullgang
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2019
0
2018
0
2017
0
2016
3
2012
0
2011
3
2010
3
2009
3
2008
7
2007
0
2006
6
Source: MSHA quarterly employment and production, updated weekly.
Portable #1 sits in Sanders County, Montana, where the Census mining category is 0.8% 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.
Sanders County, Montana · Population 12,936
0.8%
Mining share of county employment
$54,035
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 Q1
0
0
0
2018 Q3
0
0
0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
0
0
0
2017 Q3
0
0
0
2017 Q2
0
0
0
2017 Q1
0
2
0
Show 25 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2016 Q4
160
0
0
0.0
2016 Q3
0
0
0
2016 Q2
264
0
0
0.0
2012 Q2
0
1
0
2012 Q1
0
0
0
2011 Q4
538
0
0
0.0
2011 Q3
1,438
0
0
0.0
2011 Q2
955
2
1
2094.2
2011 Q1
0
0
0
2010 Q4
524
0
0
0.0
2010 Q3
1,596
0
0
0.0
2010 Q2
1,456
0
0
0.0
2010 Q1
72
0
0
0.0
2009 Q4
1,722
0
0
0.0
2009 Q3
1,180
0
0
0.0
2009 Q2
124
0
0
0.0
2009 Q1
9
0
0
0.0
2008 Q4
1,100
0
0
0.0
2008 Q3
3,730
5
0
1340.5
2008 Q2
2,364
0
0
0.0
2007 Q3
0
0
0
2007 Q2
0
0
0
2007 Q1
1
0
0
0.0
2006 Q4
0
0
0
2006 Q3
3,141
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2006 · 1 incident
July 17, 2006MT · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS