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: 186 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Durham Mine has $670 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.
$670
proposed penalties
$670
current assessed
$670
paid to date
$0
outstanding
10 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2012-08-31.
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.
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.
Metal and nonmetal contaminants (personal samples)
ⓘMany samples are screening measurements of substances with no applicable exposure limit; they are counted as samples but excluded from every over-limit figure. Over-limit shares use only limit-tested samples.
Last sampled: 2001-06-13, 25 years ago
0%
of limit-tested samples over the exposure limit
1
samples
1
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz1
Show the individual readings (1)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2001-06-13
Quartz, respirable, >1% Qtz
0.21
0.58
0.36
Bulldozer Operator
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly. Metal/nonmetal contaminant figures come from MSHA's Personal Health Samples and Area Samples files (public record), updated weekly.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2013
1
2012
2
2011
2
2010
0
2009
0
2008
0
2007
1
2006
3
2005
3
2004
4
2002
0
2001
4
2000
4
Source: MSHA quarterly employment and production, updated weekly.
Durham Mine sits in Durham County, North Carolina, where the Census mining category is 0.1% 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.
Durham County, North Carolina · Population 329,405
0.1%
Mining share of county employment
$79,501
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
2013 Q1
2
0
0
0.0
2012 Q4
3
0
0
0.0
2012 Q3
3
2
0
666666.7
2012 Q2
2
0
0
0.0
2012 Q1
3
0
0
0.0
2011 Q3
3
0
0
0.0
2011 Q2
3
0
0
0.0
2011 Q1
3
0
0
0.0
Show 38 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2010 Q4
1
0
0
0.0
2010 Q3
0
0
0
2010 Q2
0
0
0
2010 Q1
0
0
0
2009 Q4
0
0
0
2009 Q3
0
0
0
2009 Q2
0
0
0
2009 Q1
0
0
0
2008 Q4
0
0
0
2008 Q3
0
0
0
2008 Q2
1
0
0
0.0
2008 Q1
0
0
0
2007 Q4
0
0
0
2007 Q3
0
0
0
2007 Q2
236
0
0
0.0
2007 Q1
1,081
0
0
0.0
2006 Q4
1,307
4
0
3060.4
2006 Q3
1,273
0
0
0.0
2006 Q2
1,257
0
0
0.0
2006 Q1
1,120
0
0
0.0
2005 Q4
1,525
0
0
0.0
2005 Q3
1,357
0
0
0.0
2005 Q2
1,276
0
0
0.0
2005 Q1
1,493
0
0
0.0
2004 Q4
1,697
3
0
1767.8
2004 Q3
1,880
0
0
0.0
2004 Q2
2,125
0
0
0.0
2004 Q1
1,583
0
0
0.0
2002 Q2
0
0
0
2002 Q1
0
0
0
2001 Q4
452
0
0
0.0
2001 Q3
2,137
0
0
0.0
2001 Q2
1,382
0
0
0.0
2001 Q1
1,850
0
0
0.0
2000 Q4
2,063
1
0
484.7
2000 Q3
2,333
1
0
428.6
2000 Q2
2,385
0
0
0.0
2000 Q1
1,860
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
4 on file
2001 · 3 incidents
February 8, 2001NC · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)