1 break inby the feeder at spad #370, we had a roof fall that caught 2 shuttle cars about 4' on one of thjem and 6' on the other one. It looks as if their was a vertical crack that caused the fall.
Clas #4: 42 MSHA citations Coal
Clas #4 has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
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Email me when a new MSHA incident is filed at Clas #4.
- Fatalities
- 0
- Total incidents
- 8
- Years on record
- 2007–2008
- Latest incident
- Sep 2008
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Clas #4 has $5K in proposed MSHA penalties and $0 outstanding across 0 contested dockets.
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Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.MSHA sampling at Clas #4 shows 93% of 89 respirable coal dust samples met the 1.5 mg/m3 standard.
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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
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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: 2008-08-27, 17 years ago
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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.- CONTINUOUS MINER OPERATOR36
- SHUTTLE CAR OPERATOR (STANDARD SIDE)9
- ROOF BOLTER (TWIN HEAD) (RETURN SIDE)7
Silica (quartz)
Last sampled: 2008-06-03, 18 years ago- CONTINUOUS MINER OPERATOR3
Noise
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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.
Last sampled: 2008-01-22, 18 years ago
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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.- ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)3
- SHUTTLE CAR OPERATOR (STANDARD SIDE)3
- CONTINUOUS MINER OPERATOR2
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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 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.| Year | within 1.5 mg/m3 | samples |
|---|---|---|
| 2008 | 96% | 53 |
| 2007 | 89% | 36 |
| Year | silica avg (%) | samples |
|---|---|---|
| 2008 | 4.2 | 1 |
| 2007 | 5.0 | 3 |
| Year | over PEL | samples |
|---|---|---|
| 2008 | 25% | 8 |
| 2007 | 0% | 5 |
Clas #4 recorded 0.00 reportable injury cases per 100 full-time workers in 2008.
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This rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.- Clas Coal Company, Inc. 2007 to present
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Coal production is reported quarterly and lags the current period; the most recent quarters may be incomplete.| Year | Employees | Coal produced (tons) |
|---|---|---|
| 2008 | 26 | 155,127 |
| 2007 | 35 | 94,265 |
Clas #4 sits in Knott County, Kentucky, where the Census mining category is 2.8% of county employment.
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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.ⓘ
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.| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2008 Q4 | 0 | 0 | 0 | |
| 2008 Q3 | 19,575 | 11 | 3 | 561.9 |
| 2008 Q2 | 22,586 | 10 | 1 | 442.8 |
| 2008 Q1 | 21,995 | 12 | 0 | 545.6 |
| 2007 Q4 | 19,129 | 2 | 0 | 104.6 |
| 2007 Q3 | 14,855 | 6 | 0 | 403.9 |
Reportable incidents
8 on file2008 · 6 incidents
While traveling airways, found a roof fall about 4' thick, 25' wide and 40' long, 1 break inby spad #277. Looks like there was a hill seam there and water has cut it loose.
While traveling air ways discovered a roof fall 1 break to the right of spad #268. It was measured about 20' wide, 70' long and 7' thick. Check test holes around it and checked OK. Timbered and dangered off. Looks as if 2 hill seams caused fall. Will keep a closer look at top to try to keep this from happening.
While traveling the airways I found a roof fall 1 break inby spad 303. It had fallen about 4' thick 12' wide and 70' long. I check test holes around it found no other cracks came outside reported the fall and went back timered and dangered fell off hill seems and water look like cause fall.
While checking a place that I had dangered off earlier in the week, I found that it had fallen. About 90' long 20' wide adn 5' thick. There was hill seams and water coming out of the top.
While traveling the return on the way to section found a roof fall in an abandoned area of the mine. Did not affect ventilation and no one injured. The fall was about 4' thick, 20' wide & about 45' long.
2007 · 2 incidents
Roof fall was found in 1st left return panel, 900' outby section. Fall did not effect ventilation at the mine. Fall was discovered by superintendant.
While attempting to put a cover back on the roof bolter, he dropped the cover and it hit on top of his foot behind the steel toe.