Mining Incidents

No 1 Cave Branch: 4 MSHA citations Coal

Controlled by Hugh Holbrook
Brinkley, Knott County, KY  ·  Abandoned
MSHA Mine ID: 1518151

No 1 Cave Branch has $255 in proposed MSHA penalties and $255 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
2000
Latest incident
Feb 2000
Compliance record
MSHA citations since 2000
4
citations
2
significant & substantial
$255
proposed penalties
$0
paid to date
0% of proposed penalties paid to date, a $255 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
19
inspections on record
127
inspection hours
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: 127 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

No 1 Cave Branch has $255 in proposed MSHA penalties and $255 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.
$255
proposed penalties
$255
current assessed
$0
paid to date
$255
outstanding
4 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2000-02-29.
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.
50.0%
significant & substantial
0.0%
high negligence or reckless
50.0%
reasonably likely or greater
0.0%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 25.0% low, 75.0% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.

MSHA sampling at No 1 Cave Branch shows 82% of 17 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: 2000-05-19, 26 years ago
82%
within 1.5 mg/m3
17
samples
1.97
dust max (mg/m3)
0 samples taken by MSHA inspectors, 17 by the operator.
Most-sampled occupations
  • BULLDOZER OPERATOR13
  • HIGHLIFT OPERATOR/FRONT END LOADER2
  • REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE2

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.

Last sampled: 2000-03-16, 26 years ago
0%
over PEL
5
samples
Most-sampled occupations
  • BULLDOZER OPERATOR2
  • REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE2
  • HIGHLIFT OPERATOR/FRONT END LOADER1
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
Ownership history
  1. Holbrook Mining Company Inc 1999 to present
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)
2002 0 130
2001 3 5,573
2000 6 12,294
Source: MSHA quarterly employment and production, updated weekly.

No 1 Cave Branch sits in Knott County, Kentucky, where the Census mining category is 2.8% 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.
Knott County, Kentucky · Population 14,046
2.8%
Mining share of county employment
$37,736
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
2002 Q4 0 0 0
2002 Q3 0 0 0
2002 Q2 0 0 0
2002 Q1 40 0 0 0.0
2001 Q4 200 0 0 0.0
2001 Q3 765 0 0 0.0
2001 Q2 1,577 0 0 0.0
2001 Q1 0 0 0
Show 4 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2000 Q4 0 0 0
2000 Q3 0 0 0
2000 Q2 635 0 0 0.0
2000 Q1 5,845 4 2 684.3
No fatalities recorded at this mine.

Reportable incidents

1 on file

2000 · 1 incident