PORTABLE AC CRUSHER has $45K in proposed MSHA penalties and $0 outstanding across 4 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
7
Years on record
1990–1999
Latest incident
Mar 1999
Compliance record
MSHA citations since 2002
125
citations
30
significant & substantial
$44,600
proposed penalties
$40,029
paid to date
90% of proposed penalties paid to date, a $4,571 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: 826 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘA Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
1
Section 107(a) orders
Most recent order: 2012-10-16.
On record since 2012.
Source: MSHA imminent-danger order records, updated weekly.
PORTABLE AC CRUSHER has $45K in proposed MSHA penalties and $0 outstanding across 4 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.
$45K
proposed penalties
$40K
current assessed
$40K
paid to date
$0
outstanding
123 assessments are final orders; 4 contested dockets.
Of $14K in penalties contested before the Commission, $9K was upheld in final decisions.
As of the most recent assessment on 2025-11-18.
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.
When citations were contested
ⓘContesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
12citations taken to the federal commission · 10% of citations on record
Settled
9 · 75%
Stood as issued
3 · 25%
60%
S&S designation survived the contest
ⓘCounts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 5 decided S&S contests · industry: 79%
33%
Penalty reduction in decided contests
$14K proposed, $9K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2011-05-03.
Contested penalties
ⓘA reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
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: 2023-10-11
13%
of limit-tested samples over the exposure limit
16
samples
8
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz81 over
Respirable dust, <.1mg7
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (16)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2012-10-17
Quartz, respirable, >1% Qtz
2.1
1.18
1.78
Crusher Oper/Worker
2023-10-11
Quartz, respirable, >1% Qtz
0.22
0.76
0.29
Utility Man
2023-10-11
Quartz, respirable, >1% Qtz
0.61
1.06
0.58
Crusher Oper/Worker
2021-08-17
Respirable dust, <.1mg
0
Front-end Loader Operator
2015-06-10
Respirable dust, <.1mg
0
Laborer, Bullgang
2015-06-10
Respirable dust, <.1mg
0
Crusher Oper/Worker
2014-09-18
Quartz, respirable, >1% Qtz
0.14
0.6
0.23
Truck Driver
2014-09-18
Respirable dust, <.1mg
0
Crusher Oper/Worker
2014-09-18
Unlisted Particulate, respirable, <1% Qtz
0.22
Laborer, Bullgang
2013-06-04
Quartz, respirable, >1% Qtz
0.34
1.6
0.21
Crusher Oper/Worker
2012-10-17
Respirable dust, <.1mg
0
Crusher Oper/Worker
2009-10-07
Quartz, respirable, >1% Qtz
0.74
1.83
0.40
Crusher Oper/Worker
2009-10-07
Respirable dust, <.1mg
0
Crusher Oper/Worker
2005-12-07
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-12-07
Quartz, respirable, >1% Qtz
0.13
0.7
0.19
Laborer, Bullgang
2005-12-07
Quartz, respirable, >1% Qtz
0.25
0.61
0.41
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
6
2025
6
2024
6
2023
5
2022
5
2021
5
2020
5
2019
5
2018
5
2017
6
2016
5
2015
5
2014
4
2013
4
2012
4
2011
6
2010
6
2009
6
2008
8
2007
5
2006
6
2005
4
2004
5
2003
3
2002
3
2001
3
2000
4
Source: MSHA quarterly employment and production, updated weekly.
PORTABLE AC CRUSHER sits in Hancock County, Maine, 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.
Hancock County, Maine · Population 56,084
0.0%
Mining share of county employment
$69,630
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
USING BAR TO ADJST CONE BAR STRUCK CONVEYOR BELTABOVE & JAMMED L INDEX FINGER BETWEEN BAR & STEEL UPRIGHT. BAR WAS TOO LONG, HURRYING A LITTLE AT THE END OF THE DAY. BRUISED L INDEX FINGER, DR SAID THE TIP WAS BROKEN
1995 · 1 incident
August 29, 1995ME · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
WAS USING A JACK HAMMER ON THE GROUND UNDER THE CRUSHER IN HAMPDEN. UNHOOKED THE AIR HOSE FROM THE JACK HAMMER WITHOUT RELEASING THE AIR IN THE LINE OF THE HOSE. HOSE WENT HAYWIRE STRIKING UPP ER PART OF LEFT LEG. INJURING THIGH AND HIP.