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: 105 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 Crusher has $416 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.
$416
proposed penalties
$416
current assessed
$416
paid to date
$0
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2017-10-24.
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: 2016-10-19, 9 years ago
0%
of limit-tested samples over the exposure limit
3
samples
2
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz2
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (3)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2016-10-19
Unlisted Particulate, respirable, <1% Qtz
0.16
Front-end Loader Operator
2016-10-19
Quartz, respirable, >1% Qtz
0.13
0.46
0.28
Laborer, Bullgang
2015-12-03
Quartz, respirable, >1% Qtz
0.2
0.48
0.42
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
2025
1
2024
1
2023
1
2022
1
2021
2
2020
1
2019
2
2018
1
2017
3
2016
3
2015
2
2014
2
2013
3
2012
2
2011
3
2010
3
2009
3
2008
5
2007
3
Source: MSHA quarterly employment and production, updated weekly.
Portable Crusher sits in Androscoggin 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.
Androscoggin County, Maine · Population 112,323
0.0%
Mining share of county employment
$67,298
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
2025 Q3
1
0
0
0.0
2025 Q2
1
0
0
0.0
2025 Q1
1
0
0
0.0
2024 Q4
1
0
0
0.0
2024 Q3
3
0
0
0.0
2024 Q2
1
0
0
0.0
2024 Q1
2
0
0
0.0
2023 Q4
1
0
0
0.0
Show 63 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2023 Q3
1
0
0
0.0
2023 Q2
3
0
0
0.0
2023 Q1
1
0
0
0.0
2022 Q4
3
0
0
0.0
2022 Q3
1
0
0
0.0
2022 Q2
2
0
0
0.0
2022 Q1
3
0
0
0.0
2021 Q4
105
0
0
0.0
2021 Q3
74
0
0
0.0
2021 Q2
3
0
0
0.0
2021 Q1
2
0
0
0.0
2020 Q4
1
0
0
0.0
2020 Q3
1
0
0
0.0
2020 Q2
1
0
0
0.0
2020 Q1
1
0
0
0.0
2019 Q4
1
0
0
0.0
2019 Q3
135
0
0
0.0
2019 Q2
1
0
0
0.0
2019 Q1
1
0
0
0.0
2018 Q4
1
0
0
0.0
2018 Q3
14
0
0
0.0
2018 Q2
1
0
0
0.0
2018 Q1
1
0
0
0.0
2017 Q4
198
0
0
0.0
2017 Q3
952
0
0
0.0
2017 Q2
422
0
0
0.0
2017 Q1
37
0
0
0.0
2016 Q4
374
0
0
0.0
2016 Q3
153
0
0
0.0
2016 Q2
261
0
0
0.0
2016 Q1
92
0
0
0.0
2015 Q4
803
1
0
1245.3
2015 Q3
1
0
0
0.0
2015 Q2
173
0
0
0.0
2014 Q4
1
0
0
0.0
2014 Q3
1
0
0
0.0
2014 Q2
98
0
0
0.0
2014 Q1
1
0
0
0.0
2013 Q4
1
0
0
0.0
2013 Q3
69
0
0
0.0
2013 Q2
240
0
0
0.0
2013 Q1
526
0
0
0.0
2012 Q4
103
0
0
0.0
2012 Q3
335
0
0
0.0
2012 Q2
439
0
0
0.0
2012 Q1
1
0
0
0.0
2011 Q4
1,188
0
0
0.0
2011 Q3
1
0
0
0.0
2011 Q2
214
0
0
0.0
2011 Q1
1
0
0
0.0
2010 Q4
1
0
0
0.0
2010 Q3
254
0
0
0.0
2010 Q2
1,004
0
0
0.0
2010 Q1
371
0
0
0.0
2009 Q4
1,310
2
1
1526.7
2009 Q3
508
0
0
0.0
2009 Q2
1
0
0
0.0
2009 Q1
1
0
0
0.0
2008 Q4
1,025
0
0
0.0
2008 Q3
425
0
0
0.0
2007 Q4
1
0
0
0.0
2007 Q2
366
0
0
0.0
2007 Q1
490
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2013 · 1 incident
April 30, 2013ME · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
Employee was replacing a section of wear screen on a screen deck, he was on his knees and lifted the screen (approx 20lbs). When he extended his arms moving away from his body, he felt something pull in his back. He did not have any pain or discomfort until the following morning.