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: 492 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Casper Pit has $7K in proposed MSHA penalties and $0 outstanding across 1 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
32 assessments are final orders; 1 contested dockets.
Of $5K in penalties contested before the Commission, $5K was upheld in final decisions.
As of the most recent assessment on 2022-07-13.
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.
2citations taken to the federal commission · 6% of citations on record
Settled
2 · 100%
100%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
0%
Penalty reduction in decided contests
$5K proposed, $5K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2020-06-18.
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.
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: 2014-10-23, 11 years ago
13%
of limit-tested samples over the exposure limit
16
samples
8
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz81 over
Respirable dust, <.1mg7
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (16)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2006-08-02
Quartz, respirable, >1% Qtz
0.95
0.52
1.83
Laborer, Bullgang
2014-10-23
Respirable dust, <.1mg
0
Front-end Loader Operator
2010-08-11
Quartz, respirable, >1% Qtz
0.41
0.6
0.68
Bobcat Operator
2010-08-11
Respirable dust, <.1mg
0
Crusher Oper/Worker
2010-08-11
Quartz, respirable, >1% Qtz
0.29
1.36
0.21
Front-end Loader Operator
2007-08-15
Respirable dust, <.1mg
0
Front-end Loader Operator
2007-08-15
Quartz, respirable, >1% Qtz
0.44
0.68
0.65
Laborer, Bullgang
2006-09-27
Quartz, respirable, >1% Qtz
0.29
0.64
0.45
Laborer, Bullgang
2006-08-02
Respirable dust, <.1mg
0
Supervisor, Co. Official
2006-08-02
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-04-13
Quartz, respirable, >1% Qtz
0.33
0.6
0.55
Cleanup Man
2005-04-13
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-04-13
Quartz, respirable, >1% Qtz
0.15
0.51
0.29
Crusher Oper/Worker
2004-09-15
Respirable dust, <.1mg
0
Supervisor, Co. Official
2004-09-15
Quartz, respirable, >1% Qtz
0.15
0.57
0.26
Bobcat Operator
2002-05-21
Unlisted Particulate, respirable, <1% Qtz
0.2
Laborer, Bullgang
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
2026
0
2025
3
2024
4
2023
2
2022
1
2021
1
2020
1
2019
1
2018
6
2017
17
2016
9
2015
9
2014
4
2013
1
2012
2
2011
4
2010
5
2009
3
2008
3
2007
3
2006
4
2005
6
2004
5
2003
12
2002
9
2001
14
2000
15
Source: MSHA quarterly employment and production, updated weekly.
Casper Pit sits in Natrona County, Wyoming, where the Census mining category is 6.5% 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.
Natrona County, Wyoming · Population 79,735
6.5%
Mining share of county employment
$71,247
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
2026 Q2
0
0
0
2026 Q1
0
0
0
2025 Q4
0
0
0
2025 Q3
1,910
0
0
0.0
2025 Q2
329
0
0
0.0
2025 Q1
144
0
0
0.0
2024 Q4
1,740
0
0
0.0
2024 Q3
1,402
0
0
0.0
Show 93 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
1,324
0
0
0.0
2024 Q1
351
0
0
0.0
2023 Q4
2,179
0
0
0.0
2023 Q3
1,386
0
0
0.0
2023 Q2
983
0
0
0.0
2023 Q1
252
0
0
0.0
2022 Q4
372
0
0
0.0
2022 Q3
1,009
1
0
991.1
2022 Q2
1,102
0
0
0.0
2022 Q1
245
0
0
0.0
2021 Q4
131
0
0
0.0
2021 Q3
986
0
0
0.0
2021 Q2
771
1
0
1297.0
2021 Q1
23
0
0
0.0
2020 Q4
25
0
0
0.0
2020 Q3
729
0
0
0.0
2020 Q2
1,146
0
0
0.0
2020 Q1
170
2
2
11764.7
2019 Q4
240
0
0
0.0
2019 Q3
1,442
0
0
0.0
2019 Q2
49
0
0
0.0
2019 Q1
192
0
0
0.0
2018 Q4
728
0
0
0.0
2018 Q3
787
0
0
0.0
2018 Q2
1,054
0
0
0.0
2018 Q1
255
0
0
0.0
2017 Q4
721
0
0
0.0
2017 Q3
1,121
0
0
0.0
2017 Q2
1,424
0
0
0.0
2017 Q1
200
0
0
0.0
2016 Q4
1,332
0
0
0.0
2016 Q3
1,701
0
0
0.0
2016 Q2
726
1
0
1377.4
2016 Q1
805
0
0
0.0
2015 Q4
914
0
0
0.0
2015 Q3
1,568
0
0
0.0
2015 Q2
1,378
0
0
0.0
2015 Q1
394
0
0
0.0
2014 Q4
749
2
1
2670.2
2014 Q3
471
1
0
2123.1
2014 Q2
835
0
0
0.0
2014 Q1
291
0
0
0.0
2013 Q4
289
0
0
0.0
2013 Q3
417
0
0
0.0
2013 Q2
404
0
0
0.0
2013 Q1
538
0
0
0.0
2012 Q4
464
0
0
0.0
2012 Q3
462
0
0
0.0
2012 Q2
752
0
0
0.0
2012 Q1
136
2
0
14705.9
2011 Q4
2,097
0
0
0.0
2011 Q3
3,318
0
0
0.0
2011 Q2
1,513
0
0
0.0
2011 Q1
1,106
0
0
0.0
2010 Q4
2,046
1
0
488.8
2010 Q3
2,651
1
0
377.2
2010 Q2
1,628
0
0
0.0
2010 Q1
197
0
0
0.0
2009 Q4
462
0
0
0.0
2009 Q3
1,576
0
0
0.0
2009 Q2
1,501
0
0
0.0
2009 Q1
424
0
0
0.0
2008 Q4
881
1
0
1135.1
2008 Q3
1,585
0
0
0.0
2008 Q2
1,188
0
0
0.0
2008 Q1
265
0
0
0.0
2007 Q4
1,638
0
0
0.0
2007 Q3
2,145
0
0
0.0
2007 Q2
1,614
0
0
0.0
2007 Q1
717
0
0
0.0
2006 Q4
1,085
0
0
0.0
2006 Q3
1,462
1
0
684.0
2006 Q2
1,469
0
0
0.0
2006 Q1
1,437
0
0
0.0
2005 Q4
2,089
0
0
0.0
2005 Q3
1,963
0
0
0.0
2005 Q2
1,840
2
0
1087.0
2005 Q1
1,913
14
0
7318.3
2004 Q4
1,394
0
0
0.0
2004 Q3
2,691
0
0
0.0
2004 Q2
2,155
0
0
0.0
2004 Q1
1,247
0
0
0.0
2003 Q4
1,385
2
0
1444.0
2003 Q3
2,413
0
0
0.0
2003 Q2
2,603
0
0
0.0
2003 Q1
1,344
0
0
0.0
2002 Q4
1,772
0
0
0.0
2002 Q1
2,575
0
0
0.0
2001 Q4
3,607
0
0
0.0
2001 Q3
4,667
0
0
0.0
2001 Q2
4,969
0
0
0.0
2001 Q1
3,937
0
0
0.0
2000 Q4
3,332
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
17 on file
2004 · 2 incidents
June 22, 2004WY · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanPOWERED HAULAGE
WHILE EMPLOYEE WAS OPERATING A CAT SKID STEER LOADER CLEANING OUT UNDER A SCREEN DECK, THE LOADER LUNGED FORWARD AND IN AN ATTEMPT TO KEEP FROM GOING FORWARD, HE PULLED A GROIN MUSCLE. HE WAS INJURED BECAUSE HE FAILED TO WEAR A REQUIRED SEAT BELT WHILE OPERATING THE LOADER.
May 7, 2004WY · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
EE WAS ASSISTING IN TEARING DOWN 5 BIN FEEDER AND WAS REMOVING A JACK PAD. INJ EE & FELLOW EE LIFTED THE PAD SET IT ON A SHORT WALL. THE PAD TILTED AND ROTATED CATCHING EE'S RIGHT RING FINGER AND CUTTING IT AT THE 1ST KNUCKLE NEEDED 5 STITCHES
2001 · 1 incident
December 5, 2001WY · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSLIP OR FALL OF PERSON
WORKER LABORER/OPERATOR SLIPPED ON A FROST COVERED SURFACE, AS HE STARTED TO FALLHE CAUGH HIMSELF BY PUTTING OUT HIS LEFT HAND, THIS CAUSED HIM TO BRUISE HIS WRIST.
1997 · 1 incident
March 28, 1997WY · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
Jtl Group Inc · Fall to lower level, (Not Elsewhere Classified)
EE WAS CLIMBING ONTO A HORIZONTAL SHAFT IMPACTOR AT THE GRAY AND FELL ABOUT 3 1/2-4' BREAKING A PIECE OF HOME OUT OF THE ELBOW OF HIS RIGHT ARM.
1996 · 2 incidents
September 24, 1996WY · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
Jtl Group Inc · Contact with hot objects or substances
THIS LABORER WAS ASSISTING ON WORK BEING DONE TO A ROLL CRUSHER WHILE THE ROLLS WERE BEING WELDED ON, A PIECE OF HOT SLAG FROM THE WELDING OPERATION DROPPED OFF AND STRUCK HIM ON THE RIGHT ARM NEAR THE ELBOW BURNING THE FOREARM.
August 10, 1996WY · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
Jtl Group Inc · Over-exertion in pulling or pushing objects
CRUSHER OPERATOR WAS REPAIRING A CONVEYO HE WAS LYING ON HIS BACK IN A TIGHT AREA, WHERE THERE WAS ONLLY ROOM FOR ON EPERSON. HE USED HIS KNEE TO PUSH UP A SHOOT IN ORDER OT INSERT A PLATE AN D BOLT. WHILE PUSHING UP OEPRATOR HEARD A POP IN HIS BACK.
1995 · 2 incidents
October 5, 1995WY · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
JTL GROUP EMPLOYEE EE RECEIVED WIRE-FEED ELECTRIC WELDER FLASH BURNS TO HIS EYES WHILE WORKING NEAR THE MACHINE WELDING SHIELDS WERE IN PLACE & WERE BEING USED EMPLOYEE INADVERDENTLY LOOK AT A RC AFTER LEAVING SHIELD & WELDING HELMET
July 27, 1995WY · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanSTRIKING OR BUMPING
EMPLOYEE WAS CLEANING TIPPLE HAD FINISHED AND WAS MOVING TOWARD THE WALKWAY, WHEN HIS RIGHT THIGH STRUCK A SHARP PIECE OF STEEL, LACERATING THE THIGH.
1994 · 3 incidents
November 14, 1994WY · Metal/Non-Metaloutside foreman, leadmanOTHER
Jtl Group Inc · Over-exertion in pulling or pushing objects
EE WAS PULLING ON FLOATING FUEL TANK DURING WINDY CONDITIONS PULLED ELBOW.
April 18, 1994WY · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)
Jtl Group Inc · Struck by... (Not Elsewhere Classified)
EMPLOYEE WAS TRIMMING A CONVEYOR BELT WITH UTILITY KNIFE, KNIFE SLIPPED & CUT FINGER [LEFT INDEX] FROM FIRST JOINT THROUGH FINGERNAIL. FINGER WAS STITCHED IN EMERGENCY ROOM.
Jtl Group Inc · Caught in, under or between (Not Elsewhere Classified)
PLEASE SEE ATTACHED.LOADER WAS LIFTING AND PUSH THE TAIL. EE COULD NOT SEE OVER THE CHUTE ON THE TAIL SECTION SO HE STEPPED UP INTO THE LOADER BUCKET TO CHECK ALIGMENT. FRAME OF THE TAIL SECTI ON CAME DOWN ON HIS LEFT FOO AND PINCHED THE FOOT BETWEEN THE FRAME AND THE BOTTOM OF THE LOADER BUCKET. LEFT FOOT RECIVED A CRUSHING INJURY RESULTING AMPUTION OF THE BIG TOE AND TORN MUSCLE
1992 · 2 incidents
August 11, 1992WY · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS