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: 374 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Marietta Dock has $650 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.
$650
proposed penalties
$650
current assessed
$650
paid to date
$0
outstanding
6 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2009-11-05.
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 Marietta Dock shows 100% of 19 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: 2010-09-28, 16 years ago
100%
within 1.5 mg/m3
19
samples
0.35
dust max (mg/m3)
19 samples taken by MSHA inspectors, 0 by the operator.
Most-sampled occupations
HIGHLIFT OPERATOR/FRONT END LOADER12
CRANE OPER/DRAGLINE OPERATOR3
LABORER/BLACKSMITH2
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)
2011
0
2010
5
2009
6
2008
6
2007
6
2006
6
2005
6
2004
6
2003
6
2002
6
1996
0
1995
6
75,366
1994
2
12,629
1993
0
1992
0
1991
0
1990
7
64,388
1989
7
65,379
1988
12
153,308
1987
14
206,279
1986
11
180,437
1985
12
186,267
1984
18
259,314
1983
18
253,567
Source: MSHA quarterly employment and production, updated weekly; years before 2000 come from MSHA's archived Part 50 employment files.
Marietta Dock sits in Washington County, Ohio, where the Census mining category is 1.3% 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.
Washington County, Ohio · Population 59,318
1.3%
Mining share of county employment
$61,355
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; earlier incidents are counted but not rate-adjusted, though reported hours reach back to 1983. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
COAL TRUCK WAS 1ULLING THE HOLL OUT OF THE PIT WHEN THE DRIVER ALLOWED THE TRUCK RPMS TO DROP TO LOW BEFORE SHIFTING GEARS & COULD NOT CONTINUE WHEN HE SHIFTED TO ANOTHER GEAR THE FRONT END CA ME OFF THE GROU3D THE EXACT SEQUENCE IS NOT KNOWN BUT THE BRAKES DID NOT HOLD AND THE TRUCK ROLLED BACKWARDS HITTING BERM & UPSETTING