Grass Creek Mine: 18 MSHA citations Coal
Grass Creek Mine has $2K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.
Watch this mine
Email me when a new MSHA incident is filed at Grass Creek Mine.
- Fatalities
- 0
- Total incidents
- 0
- Years on record
- —
- Latest incident
- —
Compliance record
MSHA citations since 2005
18
citations
4
significant & substantial
$1,812
proposed penalties
$1,812
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
22
inspections on record
463
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: 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.
Grass Creek Mine has $2K 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.$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
17 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2014-10-15.
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.22.2%
significant & substantial
0.0%
high negligence or reckless
22.2%
reasonably likely or greater
22.2%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 22.2% low, 77.8% moderate, 0.0% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
MSHA sampling at Grass Creek Mine shows 100% of 32 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: 2014-10-15, 11 years ago
ⓘ
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.100%
within 1.5 mg/m3
32
samples
0.63
dust max (mg/m3)
0
over MSHA ECV
ⓘ
The excessive concentration value (ECV) is MSHA's own per-sample enforcement threshold, which builds in measurement uncertainty; a sample over its ECV can trigger a citation. The count covers only samples MSHA assigned an ECV.32 samples taken by MSHA inspectors, 0 by the operator.
Most-sampled occupations
- HIGHLIFT OPERATOR/FRONT END LOADER11
- BACKHOE OPERATOR4
- ROAD GRADER OPERATOR3
Silica (quartz)
Last sampled: 2005-04-11, 21 years ago10.4
silica avg (%)
1
samples
10.4
silica max (%)
Most-sampled occupations
- ROAD GRADER OPERATOR1
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: 2014-10-15, 11 years ago
ⓘ
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.0%
over PEL
20
samples
Most-sampled occupations
- HIGHLIFT OPERATOR/FRONT END LOADER6
- REFUSE TRUCK DRIVER/BACKFILL TRUCK DRIVE4
- ASSIST MINE FOREMAN/ASSIST MINE MANAGER1
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
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.| Year | within 1.5 mg/m3 | samples |
|---|---|---|
| 2014 | 100% | 4 |
| 2013 | 100% | 4 |
| 2012 | 100% | 7 |
| 2011 | 100% | 3 |
| 2010 | 100% | 2 |
| 2009 | 100% | 5 |
| 2008 | 100% | 1 |
| 2007 | 100% | 1 |
| 2005 | 100% | 5 |
Noise by year
| Year | over PEL | samples |
|---|---|---|
| 2014 | 0% | 4 |
| 2013 | 0% | 3 |
| 2012 | 0% | 5 |
| 2011 | 0% | 1 |
| 2009 | 0% | 5 |
| 2008 | 0% | 1 |
| 2005 | 0% | 1 |
Source: MSHA respirable dust, quartz, and noise sampling records, updated weekly.
Ownership history
- Dusky Diamond Coal Company 1975 to 1979
- Northwestern Resources Company 1979 to 1988
- Kummerfeld Inc 1988 to 1994
- Kanyon Kontractors Inc 1994 to 1996
- Rbm Mining Inc 1996 to 2004
- Grass Creek Coal Company 2004 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) |
|---|---|---|
| 2015 | 1 | |
| 2014 | 3 | 12,900 |
| 2013 | 3 | 26,587 |
| 2012 | 3 | 24,040 |
| 2011 | 4 | 28,738 |
| 2010 | 4 | 25,913 |
| 2009 | 4 | 12,711 |
| 2008 | 2 | 168 |
| 2007 | 2 | 443 |
| 2006 | 2 | 1,086 |
| 2005 | 4 | 6,206 |
| 2004 | 0 |
Source: MSHA quarterly employment and production, updated weekly.
Grass Creek Mine sits in Hot Springs County, Wyoming, where the Census mining category is 7.4% 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.Hot Springs County, Wyoming · Population 4,618
7.4%
Mining share of county employment
$64,375
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 |
|---|---|---|---|---|
| 2015 Q3 | 0 | 0 | 0 | |
| 2015 Q2 | 0 | 0 | 0 | |
| 2015 Q1 | 498 | 0 | 0 | 0.0 |
| 2014 Q4 | 1,421 | 1 | 0 | 703.7 |
| 2014 Q3 | 969 | 0 | 0 | 0.0 |
| 2014 Q2 | 1,581 | 1 | 1 | 632.5 |
| 2014 Q1 | 1,683 | 0 | 0 | 0.0 |
| 2013 Q4 | 1,583 | 3 | 1 | 1895.1 |
Show 36 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2013 Q3 | 1,625 | 0 | 0 | 0.0 |
| 2013 Q2 | 1,618 | 1 | 1 | 618.0 |
| 2013 Q1 | 1,587 | 0 | 0 | 0.0 |
| 2012 Q4 | 1,948 | 2 | 0 | 1026.7 |
| 2012 Q3 | 1,054 | 2 | 0 | 1897.5 |
| 2012 Q2 | 1,061 | 0 | 0 | 0.0 |
| 2012 Q1 | 1,791 | 1 | 0 | 558.3 |
| 2011 Q4 | 2,057 | 0 | 0 | 0.0 |
| 2011 Q3 | 1,849 | 0 | 0 | 0.0 |
| 2011 Q2 | 1,571 | 0 | 0 | 0.0 |
| 2011 Q1 | 1,867 | 0 | 0 | 0.0 |
| 2010 Q4 | 2,074 | 0 | 0 | 0.0 |
| 2010 Q3 | 1,213 | 0 | 0 | 0.0 |
| 2010 Q2 | 2,080 | 1 | 1 | 480.8 |
| 2010 Q1 | 2,595 | 0 | 0 | 0.0 |
| 2009 Q4 | 2,348 | 1 | 0 | 425.9 |
| 2009 Q3 | 1,989 | 2 | 0 | 1005.5 |
| 2009 Q2 | 10 | 0 | 0 | 0.0 |
| 2009 Q1 | 560 | 0 | 0 | 0.0 |
| 2008 Q4 | 122 | 0 | 0 | 0.0 |
| 2008 Q3 | 612 | 0 | 0 | 0.0 |
| 2008 Q2 | 2 | 0 | 0 | 0.0 |
| 2008 Q1 | 48 | 0 | 0 | 0.0 |
| 2007 Q4 | 131 | 0 | 0 | 0.0 |
| 2007 Q3 | 398 | 0 | 0 | 0.0 |
| 2007 Q2 | 0 | 1 | 0 | |
| 2007 Q1 | 743 | 0 | 0 | 0.0 |
| 2006 Q4 | 780 | 0 | 0 | 0.0 |
| 2006 Q3 | 0 | 0 | 0 | |
| 2006 Q2 | 560 | 0 | 0 | 0.0 |
| 2006 Q1 | 1,578 | 0 | 0 | 0.0 |
| 2005 Q4 | 1,450 | 0 | 0 | 0.0 |
| 2005 Q3 | 1,543 | 0 | 0 | 0.0 |
| 2005 Q2 | 1,863 | 1 | 0 | 536.8 |
| 2005 Q1 | 1,675 | 0 | 0 | 0.0 |
| 2004 Q4 | 0 | 0 | 0 |
No reportable incidents on file.
MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.