Commonwealth Quarry has $66 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
Jun 2010
Compliance record
MSHA citations since 2001
1
citations
0
significant & substantial
$66
proposed penalties
$66
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: 228 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Commonwealth Quarry has $66 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.
$66
proposed penalties
$66
current assessed
$66
paid to date
$0
outstanding
1 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2001-01-11.
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.
MSHA sampling at Commonwealth Quarry shows 100% of 10 respirable coal dust samples met the 1.5 mg/m3 standard.
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.
Respirable coal dust
ⓘRespirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
Last sampled: 2017-01-31, 9 years ago
100%
within 1.5 mg/m3
10
samples
0.88
dust max (mg/m3)
0
over MSHA ECV
ⓘThe excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.
10 samples taken by MSHA inspectors, 0 by the operator.
Noise
ⓘThe share counts noise samples whose measured dose exceeded the 90 dBA permissible exposure limit. It describes the sampled workplace, not what reached the miner's ear: hearing conservation programs and the hearing protection worn during the shift are recorded separately and are not reflected here.
Health sampling trend
ⓘ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.
Respirable coal dust by year
ⓘRespirable coal dust and silica figures cover coal facilities. Dust compliance is measured against the current 1.5 mg/m3 standard; samples predating the 2014 standard are included, so compliance rates are a coarse historical signal.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
ⓘCoal production is reported quarterly and lags the current period; the most recent quarters may be incomplete.
Year
Employees
Coal produced (tons)
2019
0
2018
0
2017
0
2016
0
2015
0
2014
1
1,302
2013
4
133
2012
4
2011
5
396
2001
0
Source: MSHA quarterly employment and production, updated weekly.
Commonwealth Quarry sits in Schuylkill County, Pennsylvania, where the Census mining category is 1.1% 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.
Schuylkill County, Pennsylvania · Population 143,259
1.1%
Mining share of county employment
$66,901
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
2019 Q3
0
0
0
2019 Q2
0
0
0
2019 Q1
0
0
0
2018 Q4
0
0
0
2018 Q3
0
0
0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
0
0
0
Show 29 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2017 Q3
0
0
0
2017 Q2
0
0
0
2017 Q1
0
0
0
2016 Q4
0
0
0
2016 Q3
0
0
0
2016 Q2
0
0
0
2016 Q1
0
0
0
2015 Q4
0
0
0
2015 Q3
0
0
0
2015 Q2
0
0
0
2015 Q1
0
0
0
2014 Q4
0
0
0
2014 Q3
0
0
0
2014 Q2
0
0
0
2014 Q1
2,304
0
0
0.0
2013 Q4
2,256
0
0
0.0
2013 Q3
2,304
0
0
0.0
2013 Q2
2,304
0
0
0.0
2013 Q1
2,268
0
0
0.0
2012 Q4
2,268
0
0
0.0
2012 Q3
2,301
0
0
0.0
2012 Q2
2,340
0
0
0.0
2012 Q1
1,755
0
0
0.0
2011 Q4
2,301
0
0
0.0
2011 Q3
2,304
0
0
0.0
2011 Q2
3,801
0
0
0.0
2001 Q3
0
0
0
2001 Q2
0
0
0
2001 Q1
0
1
0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2010 · 1 incident
June 28, 2010PA · Coallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Shot crew had completed pumping emulsion blasting agent into glast holes. The truck operator was cleaning out pumping system by pressurizing system when the product delivery hose burst. When employee moved to avoid emulsion spray he triped and fell to ground, tried to catch himself and jammed his little finger dislocating it and tearing the tendon