Nenana, Yukon-Koyukuk County,
AK
·
Temporarily Idled
MSHA Mine ID: 5001716
Brice Inc. Portable #B has $418 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
1
Years on record
2010
Latest incident
Jul 2010
Compliance record
MSHA citations since 2005
4
citations
1
significant & substantial
$418
proposed penalties
$418
paid to date
100% of proposed penalties paid to date, a $0 gap.
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: 103 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Brice Inc. Portable #B has $418 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.
$418
proposed penalties
$418
current assessed
$418
paid to date
$0
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2023-05-11.
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: 2005-06-15, 21 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
2005-06-15
Quartz, respirable, >1% Qtz
0.38
1.28
0.30
Front-end Loader Operator
2005-06-15
Quartz, respirable, >1% Qtz
0.19
1.73
0.11
Truck Driver
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
2026
0
2025
0
2024
4
2023
4
2022
5
2011
0
2010
4
2009
3
2008
0
2007
14
2006
12
2005
5
2004
1
2003
1
2002
2
Source: MSHA quarterly employment and production, updated weekly.
Brice Inc. Portable #B sits in Yukon-Koyukuk Census Area, Alaska, where the Census mining category is 3.0% 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.
Yukon-Koyukuk Census Area, Alaska · Population 5,271
3.0%
Mining share of county employment
$52,642
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
0
0
0
2026 Q1
0
0
0
2025 Q4
0
0
0
2025 Q3
0
0
0
2025 Q2
0
0
0
2025 Q1
0
0
0
2024 Q4
0
0
0
2024 Q3
1,299
0
0
0.0
Show 40 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
1,379
0
0
0.0
2024 Q1
0
0
0
2023 Q4
0
0
0
2023 Q3
1,521
0
0
0.0
2023 Q2
4,539
2
0
440.6
2023 Q1
0
0
0
2022 Q4
1,207
0
0
0.0
2011 Q2
0
0
0
2011 Q1
0
0
0
2010 Q4
0
0
0
2010 Q3
3,127
0
0
0.0
2009 Q3
4
0
0
0.0
2009 Q2
671
0
0
0.0
2009 Q1
0
0
0
2008 Q4
0
0
0
2008 Q3
0
0
0
2008 Q2
0
0
0
2008 Q1
0
0
0
2007 Q4
0
0
0
2007 Q3
2,572
0
0
0.0
2007 Q2
4,761
0
0
0.0
2007 Q1
0
0
0
2006 Q4
2,303
0
0
0.0
2006 Q3
5,686
0
0
0.0
2006 Q2
0
0
0
2006 Q1
0
0
0
2005 Q4
270
0
0
0.0
2005 Q3
1,662
0
0
0.0
2005 Q2
1,381
2
1
1448.2
2005 Q1
0
0
0
2004 Q4
0
0
0
2004 Q3
340
0
0
0.0
2004 Q2
0
0
0
2004 Q1
0
0
0
2003 Q4
0
0
0
2003 Q3
472
0
0
0.0
2003 Q2
0
0
0
2003 Q1
0
0
0
2002 Q4
0
0
0
2002 Q3
176
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2010 · 1 incident
July 19, 2010AK · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
It was a rainy day and the ground was muddy which led to the steps on the ladder being slippery. Employee banged his leg on the attached ladder while descending.