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.
124 citations across 1,654 inspection hours.
Source: MSHA inspections data, updated weekly.
Imminent-danger orders
ⓘA Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.
2
Section 107(a) orders
Most recent order: 2011-08-02.
On record since 2011.
Source: MSHA imminent-danger order records, updated weekly.
Calder Mine has $298K in proposed MSHA penalties and $0 outstanding across 35 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.
$298K
proposed penalties
$61K
current assessed
$61K
paid to date
$0
outstanding
119 assessments are final orders; 35 contested dockets.
Of $300K in penalties contested before the Commission, $56K was upheld in final decisions.
As of the most recent assessment on 2015-06-29.
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.
Source: MSHA violations gravity and negligence coding, updated weekly.
When citations were contested
ⓘContesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.
81citations taken to the federal commission · 65% of citations on record
Settled
70 · 86%
Stood as issued
6 · 7%
Vacated or withdrawn
5 · 6%
94%
S&S designation survived the contest
ⓘCounts a Significant & Substantial citation as surviving when a settlement or judge's decision kept the designation, or the contest was dismissed or defaulted so the citation stands as issued. Vacated and withdrawn citations, and settlements that removed the designation, count against.
of 34 decided S&S contests · industry: 79%
81%
Penalty reduction in decided contests
$300K proposed, $56K after decisions · industry: 39%
Source: MSHA Contested Violations file (public record), updated weekly. A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record. Latest contest filed 2015-04-26.
Contested penalties
ⓘA reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.
Largest penalties this mine contested before the Federal Mine Safety and Health Review Commission, with the outcome on record.
MSHA sampling at Calder Mine shows 95% of 21 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: 2013-03-09, 13 years ago
95%
within 1.5 mg/m3
21
samples
2.31
dust max (mg/m3)
11 samples taken by MSHA inspectors, 10 by the operator.
Most-sampled occupations
CONTINUOUS MINER OPERATOR10
BULLDOZER OPERATOR3
UTILITY MAN3
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.
Calder Mine recorded 9.18 reportable injury cases per 100 full-time workers in 2012.
Injury rate, 2012
ⓘThis rate is reportable injury cases per 100 full-time-equivalent workers per year, computed as 200,000 times cases divided by MSHA operator-reported employee-hours. Cases are injuries MSHA graded degree 01 through 07; accident-only events that hurt no one are excluded, and so are contractor injuries, whose hours do not attach to a single mine. Rates begin in 2000, when quarterly employment reporting starts, and are withheld below 20,000 hours in a year.
9.18
total case rate
9.18
days-away rate
0.000
fatality rate
Above average. The US coal mining average was 3.74 and the all-US-mining average was 2.96 cases per 100 workers.
In Oklahoma, coal mining averaged 4.79 cases per 100 workers that year.
Under 100,000 employee-hours were reported that year, so a single case moves the rate by two or more. Read the figure as approximate.
Source: injury cases from MSHA accident and injury records; employee-hours from MSHA quarterly employment reports. Rate is cases per 100 full-time-equivalent workers, operator employees only.
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)
2019
0
2018
0
2017
0
2016
0
2015
1
2014
3
2013
6
1,566
2012
11
2011
4
2010
0
Source: MSHA quarterly employment and production, updated weekly.
Calder Mine sits in Le Flore County, Oklahoma, where the Census mining category is 3.0% 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.
Le Flore County, Oklahoma · Population 48,728
3.0%
Mining share of county employment
$50,027
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
2019 Q3
0
0
0
2019 Q2
0
0
0
2019 Q1
0
0
0
2018 Q4
0
0
0
2018 Q3
0
0
0
2018 Q2
0
0
0
2018 Q1
0
0
0
2017 Q4
0
0
0
Show 28 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2017 Q3
0
0
0
2017 Q2
0
0
0
2017 Q1
0
0
0
2016 Q4
0
0
0
2016 Q3
0
0
0
2016 Q2
0
0
0
2016 Q1
0
0
0
2015 Q4
0
0
0
2015 Q3
240
0
0
0.0
2015 Q2
0
1
0
2015 Q1
664
0
0
0.0
2014 Q4
773
0
0
0.0
2014 Q3
747
0
0
0.0
2014 Q2
874
0
0
0.0
2014 Q1
756
2
0
2645.5
2013 Q4
280
1
0
3571.4
2013 Q3
1,424
1
1
702.2
2013 Q2
2,810
12
1
4270.5
2013 Q1
7,068
15
5
2122.2
2012 Q4
6,640
3
2
451.8
2012 Q3
6,021
4
0
664.3
2012 Q2
4,500
2
0
444.4
2012 Q1
4,635
4
1
863.0
2011 Q4
6,068
1
0
164.8
2011 Q3
8
8
4
1000000.0
2011 Q2
0
13
7
2011 Q1
0
0
0
2010 Q4
0
1
1
No fatalities recorded at this mine.
Reportable incidents
2 on file
2012 · 1 incident
April 10, 2012OK · Coallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
EE was in the process of cutting a 4' x 20" piece of 3/8" steel plate, when the piece being "cut off" broke away from the larger sheet. The metal sheet's corner struck the ground first, causing the sheet to bounce and deflect sideways and struck ee left foot, just behind the steel toe of his left boot. Plate was being held by Caterpillar Skid Steer.
2011 · 1 incident
July 2, 2011OK · Coallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
Employee was climbing an embankment to weld on a conveyor belt tail piece, when he slipped off the embankment and tried to catch himself on the side of the truck, spraining his right wrist. He was transported to St. Edwards ER, x-rays were taken, there were no broken or dislocated bones. He returned to work on the next schedule day of work 7/5/11 to his normal duties.