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.
Mather has $208 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.
$208
proposed penalties
$208
current assessed
$208
paid to date
$0
outstanding
3 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2004-06-22.
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 Mather shows 89% of 9 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: 2004-06-21, 22 years ago
89%
within 1.5 mg/m3
9
samples
1.80
dust max (mg/m3)
9 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)
2005
0
2004
0
2003
1
10,290
2002
1
15,379
2001
1
5,549
2000
0
Source: MSHA quarterly employment and production, updated weekly.
Mather sits in Greene County, Pennsylvania, where the Census mining category is 5.2% 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.
Greene County, Pennsylvania · Population 35,265
5.2%
Mining share of county employment
$66,870
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
2005 Q1
0
0
0
2004 Q4
0
0
0
2004 Q3
160
0
0
0.0
2004 Q2
0
3
2
2004 Q1
0
0
0
2003 Q4
0
0
0
2003 Q3
60
0
0
0.0
2003 Q1
208
0
0
0.0
Show 9 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2002 Q4
0
0
0
2002 Q3
91
0
0
0.0
2002 Q2
200
1
1
5000.0
2002 Q1
180
0
0
0.0
2001 Q4
1,750
0
0
0.0
2001 Q3
0
0
0
2001 Q2
0
0
0
2001 Q1
0
0
0
2000 Q4
0
0
0
No fatalities recorded at this mine.
Reportable incidents
1 on file
2004 · 1 incident
August 10, 2004PA · Coalcrane operator, mobile equipment operator (meo), dragline operator, dropball operator, riggerSLIP OR FALL OF PERSON
The rock truck was apparently low on air pressure causing the drive train to "lock". The injured party checked the condition and was on the ground when the attended truck's front, left wheel turned into employee.
Related mines
Other mines operated by Mather Recovery Systems LLC