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: 142 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ambrosia Tipple has $240 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.
$240
proposed penalties
$240
current assessed
$240
paid to date
$0
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2004-04-01.
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 Ambrosia Tipple shows 100% of 6 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: 2005-01-11, 21 years ago
100%
within 1.5 mg/m3
6
samples
0.15
dust max (mg/m3)
6 samples taken by MSHA inspectors, 0 by the operator.
Most-sampled occupations
HIGHLIFT OPERATOR/FRONT END LOADER6
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
Year
Employees
2005
1
2004
1
2003
1
2002
1
2001
1
2000
1
Source: MSHA quarterly employment and production, updated weekly.
Ambrosia Tipple sits in Lawrence County, Pennsylvania, where the Census mining category is 0.2% 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.
Lawrence County, Pennsylvania · Population 85,423
0.2%
Mining share of county employment
$60,779
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 Q4
246
0
0
0.0
2005 Q2
15
0
0
0.0
2005 Q1
726
0
0
0.0
2004 Q4
86
0
0
0.0
2004 Q1
559
3
0
5366.7
2003 Q4
524
0
0
0.0
2003 Q1
464
0
0
0.0
2002 Q4
215
0
0
0.0
Show 11 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2002 Q3
0
0
0
2002 Q2
1
0
0
0.0
2002 Q1
585
0
0
0.0
2001 Q4
230
0
0
0.0
2001 Q3
23
0
0
0.0
2001 Q2
25
0
0
0.0
2001 Q1
657
0
0
0.0
2000 Q4
381
0
0
0.0
2000 Q3
0
0
0
2000 Q2
151
0
0
0.0
2000 Q1
704
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
1 on file
1990 · 1 incident
August 21, 1990PA · Coalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorOCCUPATIONAL SKIN DISEASES