Coalburg Extension
Coal
Mammoth,
Kanawha County,
WV
·
Abandoned
MSHA Mine ID: 4609235
Coalburg Extension has $21K in proposed MSHA penalties and $4K 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
- 2008
- Latest incident
- May 2008
Compliance record
MSHA citations since 2007
29
significant & substantial
$20,650
proposed penalties
80% of proposed penalties paid to date, a $4,216 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2007
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: 463 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Coalburg Extension has $21K in proposed MSHA penalties and $4K 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.
64 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2008-12-29.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
MSHA sampling at Coalburg Extension shows respirable coal dust averaging 0.62 mg/m3 (92% compliant) across 37 samples.
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.
Most recent sample: 2009-01-29.
Silica (quartz)
Most recent sample: 2008-11-10.
Noise
Most recent sample: 2008-12-06.
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
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 |
| 2009 Q4 |
2,070 |
0 |
0 |
0.0 |
| 2009 Q3 |
2,070 |
0 |
0 |
0.0 |
| 2009 Q2 |
2,160 |
0 |
0 |
0.0 |
| 2009 Q1 |
2,070 |
0 |
0 |
0.0 |
| 2008 Q4 |
8,305 |
22 |
7 |
2649.0 |
| 2008 Q3 |
23,157 |
10 |
5 |
431.8 |
| 2008 Q2 |
17,453 |
18 |
4 |
1031.3 |
No fatalities recorded at this mine.
Reportable incidents
1 on file
2008 · 1 incident
Mammoth Coal Company · Accident type, without injuries
An unplanned roof fall occurred in the coalburg extension mine in the #3 entry. #3 brk at spad #242. No injuries were reported. The fall measured 50' long x 19' wide x 6' high. The area was developed on 5/2/08.
For insurers, brokers, and safety consultants
The full compliance file on Coalburg Extension
A dated report covering the 26-year penalty trail, line-item violation pattern, contest and
docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF
with the underlying data as CSV.