Mining Incidents

McClosky Jaw: 39 MSHA citations Metal/Non-Metal

Powell Stone and Gravel · Surface
LUNENBURG, Worcester County, MA  ·  Temporarily Idled
MSHA Mine ID: 1901139

McClosky Jaw has $4K 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
0
Years on record
Latest incident
Compliance record
MSHA citations since 2005
39
citations
6
significant & substantial
$4,424
proposed penalties
$4,424
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
25
inspections on record
317
inspection hours
n/a
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: 317 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

McClosky Jaw has $4K 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.
$4K
proposed penalties
$4K
current assessed
$4K
paid to date
$0
outstanding
39 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2022-04-21.
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.
15.4%
significant & substantial
10.3%
high negligence or reckless
15.4%
reasonably likely or greater
53.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 10.3% low, 79.5% moderate, 10.3% high, 0.0% reckless.
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: 2017-03-08, 9 years ago
4
samples
0
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg4
Show the individual readings (4)
Date Contaminant Concentration Limit Conc / limit Occupation
2017-03-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2017-03-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-08-16 Respirable dust, <.1mg 0 Backhoe Operator
2005-06-29 Respirable dust, <.1mg 0 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.
Ownership history
  1. Powell Stone and Gravel 2004 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2024 0
2023 2
2022 2
2021 2
2020 3
2019 2
2018 3
2017 2
2016 3
2015 3
2014 2
2013 2
2012 2
2011 3
2010 3
2009 2
2008 2
2007 3
2006 3
2005 2
2004 2
Source: MSHA quarterly employment and production, updated weekly.

McClosky Jaw sits in Worcester County, Massachusetts, 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.
Worcester County, Massachusetts · Population 861,664
0.0%
Mining share of county employment
$93,561
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
2024 Q3 0 0 0
2023 Q1 32 0 0 0.0
2022 Q4 193 0 0 0.0
2022 Q3 94 0 0 0.0
2022 Q2 288 1 0 3472.2
2022 Q1 473 0 0 0.0
2021 Q4 314 0 0 0.0
2021 Q3 109 0 0 0.0
Show 67 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2021 Q2 269 0 0 0.0
2021 Q1 392 1 0 2551.0
2020 Q4 413 0 0 0.0
2020 Q3 311 0 0 0.0
2020 Q2 480 0 0 0.0
2020 Q1 606 0 0 0.0
2019 Q4 187 0 0 0.0
2019 Q3 259 0 0 0.0
2019 Q2 209 0 0 0.0
2019 Q1 451 0 0 0.0
2018 Q4 534 3 0 5618.0
2018 Q3 636 0 0 0.0
2018 Q2 322 2 0 6211.2
2018 Q1 541 0 0 0.0
2017 Q4 359 0 0 0.0
2017 Q3 161 0 0 0.0
2017 Q2 344 0 0 0.0
2017 Q1 527 8 2 15180.3
2016 Q4 797 0 0 0.0
2016 Q3 628 0 0 0.0
2016 Q2 350 0 0 0.0
2016 Q1 608 3 0 4934.2
2015 Q4 685 0 0 0.0
2015 Q3 237 0 0 0.0
2015 Q2 404 4 1 9901.0
2015 Q1 134 0 0 0.0
2014 Q4 77 0 0 0.0
2014 Q3 95 0 0 0.0
2014 Q2 280 0 0 0.0
2014 Q1 252 0 0 0.0
2013 Q4 360 0 0 0.0
2013 Q3 83 0 0 0.0
2013 Q2 206 2 2 9708.7
2013 Q1 2 0 0 0.0
2012 Q4 63 0 0 0.0
2012 Q3 134 0 0 0.0
2012 Q2 265 0 0 0.0
2012 Q1 195 5 1 25641.0
2011 Q4 313 0 0 0.0
2011 Q3 285 1 0 3508.8
2011 Q2 698 0 0 0.0
2011 Q1 261 0 0 0.0
2010 Q4 261 0 0 0.0
2010 Q3 326 0 0 0.0
2010 Q2 240 0 0 0.0
2010 Q1 151 0 0 0.0
2009 Q4 335 0 0 0.0
2009 Q3 186 3 0 16129.0
2009 Q2 55 0 0 0.0
2009 Q1 39 0 0 0.0
2008 Q4 421 0 0 0.0
2008 Q3 148 0 0 0.0
2008 Q2 268 3 0 11194.0
2008 Q1 128 0 0 0.0
2007 Q4 603 0 0 0.0
2007 Q3 857 1 0 1166.9
2007 Q2 594 0 0 0.0
2007 Q1 395 0 0 0.0
2006 Q4 260 0 0 0.0
2006 Q3 606 0 0 0.0
2006 Q2 557 0 0 0.0
2006 Q1 421 0 0 0.0
2005 Q4 181 0 0 0.0
2005 Q3 310 0 0 0.0
2005 Q2 78 2 0 25641.0
2005 Q1 117 0 0 0.0
2004 Q4 117 0 0 0.0

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.