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: 354 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 $5K in proposed MSHA penalties and $0 outstanding across 2 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.
$5K
proposed penalties
$5K
current assessed
$5K
paid to date
$0
outstanding
42 assessments are final orders; 2 contested dockets.
Of $945 in penalties contested before the Commission, $840 was upheld in final decisions.
As of the most recent assessment on 2024-08-14.
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.
3citations taken to the federal commission · 7% of citations on record
Settled
3 · 100%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
11%
Penalty reduction in decided contests
$945 proposed, $840 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2014-06-03.
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: 2020-03-19, 6 years ago
50%
of limit-tested samples over the exposure limit
5
samples
2
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz21 over
Respirable dust, <.1mg2
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (5)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2007-11-07
Quartz, respirable, >1% Qtz
0.42
0.42
1.00
Crusher Oper/Worker
2020-03-19
Respirable dust, <.1mg
0
Backhoe Operator
2005-11-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-11-01
Quartz, respirable, >1% Qtz
0.27
0.96
0.28
Crusher Oper/Worker
2001-10-04
Unlisted Particulate, respirable, <1% Qtz
0.19
Front-end Loader 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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
0
2025
2
2024
2
2023
3
2022
2
2021
5
2020
5
2019
4
2018
5
2017
5
2016
5
2015
3
2014
3
2013
3
2012
3
2011
3
2010
3
2009
3
2008
4
2007
4
2006
6
2005
3
2004
2
2003
3
2002
5
2001
3
Source: MSHA quarterly employment and production, updated weekly.
Portable Crusher sits in Belknap County, New Hampshire, where the Census mining category is 0.1% 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.
Belknap County, New Hampshire · Population 64,300
0.1%
Mining share of county employment
$87,983
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
250
0
0
0.0
2025 Q2
0
0
0
2025 Q1
0
0
0
2024 Q4
112
0
0
0.0
2024 Q3
0
2
0
Show 91 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
0
0
0
2024 Q1
444
0
0
0.0
2023 Q4
0
0
0
2023 Q3
79
0
0
0.0
2023 Q2
26
0
0
0.0
2023 Q1
26
0
0
0.0
2022 Q4
1
0
0
0.0
2022 Q3
1,524
0
0
0.0
2022 Q2
0
0
0
2022 Q1
1
0
0
0.0
2021 Q4
1,481
0
0
0.0
2021 Q3
293
0
0
0.0
2021 Q2
1,276
0
0
0.0
2021 Q1
214
0
0
0.0
2020 Q4
784
0
0
0.0
2020 Q3
128
0
0
0.0
2020 Q2
300
0
0
0.0
2020 Q1
480
2
1
4166.7
2019 Q4
1,138
0
0
0.0
2019 Q3
822
0
0
0.0
2019 Q2
860
0
0
0.0
2019 Q1
718
0
0
0.0
2018 Q4
1,526
0
0
0.0
2018 Q3
1,572
0
0
0.0
2018 Q2
1,224
0
0
0.0
2018 Q1
618
0
0
0.0
2017 Q4
1,479
0
0
0.0
2017 Q3
1,595
1
0
627.0
2017 Q2
829
0
0
0.0
2017 Q1
133
0
0
0.0
2016 Q4
261
0
0
0.0
2016 Q3
1,013
0
0
0.0
2016 Q2
691
0
0
0.0
2016 Q1
163
0
0
0.0
2015 Q4
481
1
1
2079.0
2015 Q3
288
0
0
0.0
2015 Q1
0
0
0
2014 Q4
522
1
0
1915.7
2014 Q3
561
0
0
0.0
2014 Q2
695
1
0
1438.8
2014 Q1
0
0
0
2013 Q4
482
0
0
0.0
2013 Q3
540
0
0
0.0
2013 Q2
512
2
1
3906.2
2013 Q1
0
0
0
2012 Q4
302
0
0
0.0
2012 Q3
834
0
0
0.0
2012 Q2
480
0
0
0.0
2012 Q1
0
1
0
2011 Q4
673
0
0
0.0
2011 Q3
537
1
0
1862.2
2011 Q2
377
0
0
0.0
2011 Q1
0
0
0
2010 Q4
1,652
0
0
0.0
2010 Q3
1,519
0
0
0.0
2010 Q2
1,342
0
0
0.0
2010 Q1
0
0
0
2009 Q4
544
3
1
5514.7
2009 Q3
1,158
0
0
0.0
2009 Q2
760
0
0
0.0
2009 Q1
240
0
0
0.0
2008 Q4
262
3
0
11450.4
2008 Q3
1,401
0
0
0.0
2008 Q2
1,140
0
0
0.0
2008 Q1
300
1
0
3333.3
2007 Q4
903
6
0
6644.5
2007 Q2
562
0
0
0.0
2007 Q1
554
0
0
0.0
2006 Q4
1,776
5
0
2815.3
2006 Q3
1,287
0
0
0.0
2006 Q2
1,530
0
0
0.0
2006 Q1
1,006
0
0
0.0
2005 Q4
1,201
2
0
1665.3
2005 Q3
1,169
0
0
0.0
2005 Q2
491
1
0
2036.7
2005 Q1
0
0
0
2004 Q4
244
0
0
0.0
2004 Q3
1,788
0
0
0.0
2004 Q2
843
0
0
0.0
2004 Q1
420
0
0
0.0
2003 Q4
1,118
5
1
4472.3
2003 Q3
1,480
0
0
0.0
2003 Q2
1,748
0
0
0.0
2003 Q1
580
0
0
0.0
2002 Q4
903
0
0
0.0
2002 Q3
1,191
0
0
0.0
2002 Q2
1,783
0
0
0.0
2002 Q1
725
0
0
0.0
2001 Q4
1,095
1
0
913.2
2001 Q3
1,092
0
0
0.0
2001 Q2
1,633
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2015 · 1 incident
April 23, 2015NH · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
Miner was preparing to go home. After parking the loader he placed his belongings outside the door. When he went to close the door he must've lost his grip. Not much room on platform outside door on that model. He fell off, about a 6 foot drop.