Mining Incidents

West Valley Metal/Non-Metal

Kilgore Contracting · Surface
Controlled by Summit Materials LLC
West Valley, Salt Lake County, UT  ·  Intermittent
MSHA Mine ID: 4201980

West Valley has $148K in proposed MSHA penalties and $0 outstanding across 4 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
8
Years on record
1989–2024
Latest incident
Dec 2024
Compliance record
MSHA citations since 2000
113
citations
38
significant & substantial
$148,230
proposed penalties
$120,430
paid to date
81% of proposed penalties paid to date, a $27,800 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
67
inspections on record
962
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: 962 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

West Valley has $148K in proposed MSHA penalties and $0 outstanding across 4 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.
$148K
proposed penalties
$120K
current assessed
$120K
paid to date
$0
outstanding
111 assessments are final orders; 4 contested dockets.
As of the most recent assessment on 2026-02-02.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 4,544 3 1 660.2
2025 Q3 1,579 0 0 0.0
2025 Q2 3,296 8 5 2427.2
2025 Q1 3,652 0 0 0.0
2024 Q4 6,024 3 1 498.0
2024 Q3 6,683 1 0 149.6
2024 Q2 6,586 1 0 151.8
2024 Q1 3,134 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 5,536 1 1 180.6
2023 Q3 4,984 0 0 0.0
2023 Q2 3,951 0 0 0.0
2023 Q1 4,241 0 0 0.0
2022 Q4 4,736 0 0 0.0
2022 Q3 6,084 1 0 164.4
2022 Q2 6,194 0 0 0.0
2022 Q1 3,486 1 1 286.9
2021 Q4 3,339 0 0 0.0
2021 Q3 4,689 0 0 0.0
2021 Q2 3,834 0 0 0.0
2021 Q1 6,210 0 0 0.0
2020 Q4 4,026 0 0 0.0
2020 Q3 5,042 0 0 0.0
2020 Q2 5,184 0 0 0.0
2020 Q1 5,124 0 0 0.0
2019 Q4 4,107 0 0 0.0
2019 Q3 637 0 0 0.0
2019 Q2 3,908 2 2 511.8
2019 Q1 1,515 0 0 0.0
2018 Q4 3,837 1 1 260.6
2018 Q3 4,522 0 0 0.0
2018 Q2 4,239 1 0 235.9
2018 Q1 5,507 0 0 0.0
2017 Q4 5,350 1 0 186.9
2017 Q3 4,044 1 0 247.3
2017 Q2 3,375 0 0 0.0
2017 Q1 4,047 0 0 0.0
2016 Q4 4,333 0 0 0.0
2016 Q3 4,126 0 0 0.0
2016 Q2 4,967 0 0 0.0
2016 Q1 4,494 4 2 890.1
2015 Q4 4,310 0 0 0.0
2015 Q3 4,811 0 0 0.0
2015 Q2 4,753 1 0 210.4
2015 Q1 3,984 0 0 0.0
2014 Q4 4,661 0 0 0.0
2014 Q3 5,381 0 0 0.0
2014 Q2 4,551 1 0 219.7
2014 Q1 1,607 0 0 0.0
2013 Q4 1,724 0 0 0.0
2013 Q3 3,616 0 0 0.0
2013 Q2 3,886 0 0 0.0
2013 Q1 1,308 0 0 0.0
2012 Q4 3,779 0 0 0.0
2012 Q3 5,166 0 0 0.0
2012 Q2 5,185 1 1 192.9
2012 Q1 2,196 1 0 455.4
2011 Q4 3,192 0 0 0.0
2011 Q3 5,471 0 0 0.0
2011 Q2 4,641 0 0 0.0
2011 Q1 5,326 0 0 0.0
2010 Q4 4,772 0 0 0.0
2010 Q3 5,386 4 1 742.7
2010 Q2 6,156 0 0 0.0
2010 Q1 3,821 2 0 523.4
2009 Q4 6,447 0 0 0.0
2009 Q3 12,520 3 0 239.6
2009 Q2 9,229 0 0 0.0
2009 Q1 4,030 0 0 0.0
2008 Q4 13,859 7 1 505.1
2008 Q3 18,955 5 4 263.8
2008 Q2 16,565 0 0 0.0
2008 Q1 9,995 3 2 300.2
2007 Q4 17,038 0 0 0.0
2007 Q3 22,511 0 0 0.0
2007 Q2 23,327 0 0 0.0
2007 Q1 13,314 1 1 75.1
2006 Q4 20,099 0 0 0.0
2006 Q3 18,351 0 0 0.0
2006 Q2 19,255 5 1 259.7
2006 Q1 16,837 0 0 0.0
2005 Q4 20,054 5 1 249.3
2005 Q3 19,893 0 0 0.0
2005 Q2 18,196 0 0 0.0
2005 Q1 16,243 5 1 307.8
2004 Q4 21,383 4 0 187.1
2004 Q3 22,355 6 3 268.4
2004 Q2 22,643 0 0 0.0
2004 Q1 11,697 4 0 342.0
2003 Q4 16,137 0 0 0.0
2003 Q3 18,795 0 0 0.0
2003 Q2 16,908 7 3 414.0
2003 Q1 12,257 0 0 0.0
2002 Q4 12,387 2 2 161.5
2002 Q3 11,057 7 3 633.1
2002 Q2 12,531 4 0 319.2
2002 Q1 6,109 0 0 0.0
2001 Q4 7,753 0 0 0.0
2001 Q3 13,987 3 0 214.5
2001 Q2 13,184 0 0 0.0
2001 Q1 10,055 0 0 0.0
2000 Q4 10,593 0 0 0.0
2000 Q3 14,552 2 0 137.4
2000 Q2 14,314 0 0 0.0
2000 Q1 12,903 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

8 on file

2024 · 2 incidents

December 5, 2024 UT · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Kilgore Contracting · Struck by... (Not Elsewhere Classified)

EE was standing on ladder to check progress of the Maintenance work being completed when a co-worker pulled out the screen unaware of EE's hand placement on the ladder. The screen caught EE's finger pulling back EE's left pointer finger nail

July 8, 2024 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Kilgore Contracting · Caught in, under or between a moving and a stationary object

EE was installing a troughing Roller on Cone feed 1 belt and when EE was pushing new roller set into position troughing roller flipped up pinching EE's hand between the frame and the roller causing a laceration to EE's thumb

2023 · 2 incidents

September 12, 2023 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Kilgore Contracting · Fall from ladders

EE rolled left ankle when descending down the control room ladder.

August 10, 2023 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman OTHER
Kilgore Contracting · Struck by flying object

Employee was cleaning the magnet when the wind blew and dust and Metal shavings got behind EE's safety glasses and into EE's eyes

2012 · 1 incident

January 30, 2012 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer MACHINERY
Kilgore Contracting · Struck against a moving object

An employee operating a Komatsu dozer was pushing an ripping material on a downward grade, somehow the dozer slid sideways and continued to slide 35 feet off a 27 ft high embankment. The equipment rolled one revolution and landed back on its tracks. 911 was called, and then the employee was life flighted from the scene to the University of Utah Hospital.

2008 · 1 incident

August 2, 2008 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Harper Sand & Gravel Inc · Struck by flying object

The employee was retrieving a piece of metal (flipper tooth) from a jaw crusher by cutting the tooth with a torch. When most of the tooth was cut, the jae closed a little bit and shot the tooth into the face of the employee.

1991 · 1 incident

April 26, 1991 UT · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Harper Sand & Gravel Inc · Fall from machine

CREW WAS REMOVING SCREENS FROM PLANT, EE LOST FOOTING AND FELL APPROX. 10' ONTO SAND PILE.

1989 · 1 incident

October 9, 1989 UT · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Harper Sand & Gravel Inc · Over-exertion in lifting objects

EE WAS LIFTING HEAVY METAL OXYGEN CYLINDERS IN A STORAGE TRAILER. EE FAILED TO USE HIS LEGS PROPERLY AND STRAINED HIS LOWER BACK.

For insurers, brokers, and safety consultants

The full compliance file on West Valley

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.