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: 785 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Evans No 1 Pit has $21K in proposed MSHA penalties and $209 outstanding across 2 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.
$21K
proposed penalties
$13K
current assessed
$13K
paid to date
$209
outstanding
52 assessments are final orders; 2 contested dockets.
Of $11K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2026-06-29.
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.
10citations taken to the federal commission · 19% of citations on record
Settled
9 · 90%
Vacated or withdrawn
1 · 10%
25%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 4 decided S&S contests · industry: 79%
70%
Penalty reduction in decided contests
$11K proposed, $3K 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2022-08-23.
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: 2026-06-30
42%
of limit-tested samples over the exposure limit
27
samples
12
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz125 over
Respirable dust, <.1mg15
Show the individual readings (27)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2007-08-01
Quartz, respirable, >1% Qtz
0.6
0.36
1.67
Cleanup Man
2006-01-10
Quartz, respirable, >1% Qtz
0.32
0.25
1.28
Supervisor, Co. Official
2006-01-10
Quartz, respirable, >1% Qtz
1.32
0.36
3.67
Bobcat Operator
2005-07-26
Quartz, respirable, >1% Qtz
0.71
0.42
1.69
Laborer, Bullgang
2005-06-16
Quartz, respirable, >1% Qtz
1.07
0.43
2.49
Laborer, Bullgang
2026-06-30
Quartz, respirable, >1% Qtz
0.19
0.42
0.45
Front-end Loader Operator
2026-06-30
Respirable dust, <.1mg
0
Cleanup Man
2026-06-30
Quartz, respirable, >1% Qtz
0.15
0.51
0.29
Crusher Oper/Worker
2024-03-13
Respirable dust, <.1mg
0
Front-end Loader Operator
2024-03-13
Respirable dust, <.1mg
0
Backhoe Operator
2024-03-13
Respirable dust, <.1mg
0
Cleanup Man
2023-06-29
Respirable dust, <.1mg
0
Crusher Oper/Worker
2023-06-29
Quartz, respirable, >1% Qtz
0.18
0.46
0.39
Cleanup Man
2023-06-29
Respirable dust, <.1mg
0
Front-end Loader Operator
2023-06-29
Quartz, respirable, >1% Qtz
0.18
0.64
0.28
Truck Driver
2023-06-29
Respirable dust, <.1mg
0
Truck Driver
2021-03-10
Quartz, respirable, >1% Qtz
0.3
0.77
0.39
Crusher Oper/Worker
2021-03-10
Quartz, respirable, >1% Qtz
0.14
0.34
0.41
Cleanup Man
2021-03-10
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-08-25
Respirable dust, <.1mg
0
Front-end Loader Operator
2014-08-25
Respirable dust, <.1mg
0
Crusher Oper/Worker
2014-08-25
Respirable dust, <.1mg
0
Truck Driver
2010-10-20
Respirable dust, <.1mg
0
Bobcat Operator
2010-10-20
Respirable dust, <.1mg
0
Bobcat Operator
2008-07-24
Respirable dust, <.1mg
0
Cleanup Man
2006-01-10
Respirable dust, <.1mg
0
Truck Driver
2002-04-23
Quartz, respirable, >1% Qtz
0.57
0.91
0.63
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.
Evans No 1 Pit recorded 0.00 reportable injury cases per 100 full-time workers in 2025.
Injury rate, 2025
ⓘ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.
0.00
total case rate
0.00
days-away rate
0.000
fatality rate
Below average. The US metal and nonmetal mining average was 1.65 and the all-US-mining average was 1.97 cases per 100 workers.
In Wyoming, metal and nonmetal mining averaged 1.96 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.
Year
total case rate
days-away
fatal
2025 *
0.00
0.00
0.000
2024 *
8.68
0.00
0.000
2023 *
9.89
0.00
0.000
2019 *
0.00
0.00
0.000
2012 *
0.00
0.00
0.000
2011 *
9.96
0.00
0.000
2010 *
0.00
0.00
0.000
2009 *
9.69
0.00
0.000
* Fewer than 100,000 employee-hours that year; the rate is less stable.
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
Year
Employees
2026
6
2025
9
2024
10
2023
10
2022
12
2021
13
2020
13
2019
11
2018
12
2017
12
2016
11
2015
12
2014
8
2013
10
2012
13
2011
13
2010
12
2009
15
2008
12
2007
13
2006
13
2005
13
2004
13
2003
11
2002
11
2001
11
2000
10
Source: MSHA quarterly employment and production, updated weekly.
Evans No 1 Pit sits in Teton County, Wyoming, where the Census mining category is 0.3% 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.
Teton County, Wyoming · Population 23,358
0.3%
Mining share of county employment
$112,681
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
Employee was performing maintenance work on an electrical motor that drives the screen deck. After losing balance when the nut/bolt started to loosen, they caught himself from falling with their left arm.
2024 · 1 incident
June 19, 2024WY · Metal/Non-Metalbulldozer operator, universal operator, heavy equipment operator, operating engineerHANDTOOLS (NONPOWERED)
Employee was working with hand wrench and impact driver to loosen bolt. Lost grip on wrench open end whipped around caught EE on the side of forearm. Onsite medical treatment was provided, however, on 7/10/24 the employee notified us that EE thought the laceration was infected. We took EE to the Dr. and it was, so they gave EE some antibiotics.
2023 · 1 incident
August 15, 2023WY · Metal/Non-Metaldry screening plant operator, screen house operatorHANDTOOLS (NONPOWERED)
We were using a propane torch to thaw frozen material underneath the cone crusher. The torch was left under the crusher with a small flame overnight and it ignited the conveyor belt causing a fire burning the belt and tires on the chassis.
2015 · 1 incident
December 13, 2015WY · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
During a maintenance shut down, employee was stepping onto a belt in order to access the dust mitigation system. As he stepped onto the working surface he did not notice that it was slippery. He slipped and fell to a sitting position and contacted a 12" vertical metal "skirt board" with his back and left side. Upon Dr. exam and x-ray, was found to have one fractured rib.
Sunny winter weather, using hand-held grinding wheel to take surface rust off of 2" steel tubing, wheel caught on edge and kicked back onto left hand causing a cut requiring six stitches. Able to go back to work with no restrictions.
2009 · 1 incident
April 16, 2009WY · Metal/Non-Metalgreaser, grease man, oiler, lube man, dragline oilerHANDLING OF MATERIALS
Maintenance worker replacing a guard on screen deck and got hand between guard and spring mount, guard shifted, pinched hand causing small cut on outside of left palm area. 5 stitches, no lost time.
2008 · 2 incidents
September 10, 2008WY · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDTOOLS (NONPOWERED)
Installing hoses for dust suppression system, cutting hose with utility knife, blade slipped sutting forearm of crew member. Eight stitches, no lost time , no restrictions.
Employee was on his knees shoveling out under a screen deck. As he stood up, he felt pain in left leg and hip. Went to doctor the next day - Saturday - it was determined to be a strained groin muscle. Was released with no restrictions.
1997 · 1 incident
November 5, 1997WY · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
A 30 HP MOTOR WAS BEING LIFTED BY JACK ON THE FREE FLATING END SO NEW BELTS COULD BE INSTALLED. THE JACK HAD JUST REACHED THE HEIGHT NEEDED AND AS IT WAS ABOUT TO BE BLOCKED IT SLIPPED OFF PIN CHING 3 FINGERS ON THE LEFT HAND OF THE MECHANIC
WALKED IN UNDER CONVEYOR & HIT HEAD ON BOLT NEEDED STITCHES.
1989 · 1 incident
August 9, 1989WY · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorSLIP OR FALL OF PERSON
HOOKING A CHAIN ON CRUSHER. HE SLIPPED & AS HE CAUGHT HIMSELF WHICH CAUSDED HIM TO STRAIN HIS BACK. DUE TO BACK STRAIN HE WAS UNABLE TO WORK. HOOKED CHAIN TO TOP OF CONE AS HE WAS MOVING SLIPP ED.
Related mines
Other mines operated by Evans Construction Company