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Bluffdale Pit: 131 MSHA citations Metal/Non-Metal

Kilgore Contracting · Surface
Controlled by Summit Materials LLC
Bluffdale, Utah County, UT  ·  Active
MSHA Mine ID: 4202179

Bluffdale Pit has $61K in proposed MSHA penalties and $1K outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
4
Years on record
2019–2025
Latest incident
Aug 2025
Compliance record
MSHA citations since 2001
131
citations
29
significant & substantial
$60,824
proposed penalties
$47,309
paid to date
78% of proposed penalties paid to date, a $13,515 gap.
Source: MSHA violations data, updated weekly.
See Kilgore Contracting's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
71
inspections on record
786
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: 786 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
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.
1
Section 107(a) orders
Most recent order: 2024-08-21.
On record since 2024.
Source: MSHA imminent-danger order records, updated weekly.

Bluffdale Pit has $61K in proposed MSHA penalties and $1K outstanding across 3 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.
$61K
proposed penalties
$49K
current assessed
$47K
paid to date
$1K
outstanding
129 assessments are final orders; 3 contested dockets.
Of $31K in penalties contested before the Commission, $19K was upheld in final decisions.
As of the most recent assessment on 2025-11-17.
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.
22.3%
significant & substantial
6.2%
high negligence or reckless
22.3%
reasonably likely or greater
82.3%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 3.8% low, 90.0% moderate, 6.2% high, 0.0% reckless.
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.
13 citations taken to the federal commission · 10% of citations on record
  • Settled 12 · 92%
  • Vacated or withdrawn 1 · 8%
80%
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 5 decided S&S contests · industry: 79%
41%
Penalty reduction in decided contests
$31K proposed, $18K 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 2024-10-20.
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.
Docket Decision Judge Year Proposed / upheld
WEST 2025-0006 Settlement Bulluck 2025 $22K → $13K
WEST 2024-0240 Settlement Simonton 2025 $9K → $5K
WEST 2025-0152 Settlement Simonton 2026 $500 → $500
Source: FMSHRC civil penalty dockets and decisions (public record), updated weekly.
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: 2026-07-09
25%
of limit-tested samples over the exposure limit
22
samples
8
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz82 over
  • Respirable dust, <.1mg14
Show the individual readings (22)
Date Contaminant Concentration Limit Conc / limit Occupation
2023-11-29 Quartz, respirable, >1% Qtz 0.31 0.27 1.15 Laborer, Bullgang
2023-10-10 Quartz, respirable, >1% Qtz 0.56 0.45 1.24 Laborer, Bullgang
2026-07-09 Respirable dust, <.1mg 0 Bobcat Operator
2026-07-09 Respirable dust, <.1mg 0 Front-end Loader Operator
2026-07-09 Quartz, respirable, >1% Qtz 0.12 0.4 0.30 Crusher Oper/Worker
2023-11-29 Quartz, respirable, >1% Qtz 0.22 0.87 0.25 Cager Attendant
2023-11-29 Quartz, respirable, >1% Qtz 0.2 0.48 0.42 Front-end Loader Operator
2023-10-10 Quartz, respirable, >1% Qtz 0.13 0.32 0.41 Supervisor, Co. Official
2022-09-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-09-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-07-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-07-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-07-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-07-30 Respirable dust, <.1mg 0 Crusher Oper/Worker
2014-08-27 Respirable dust, <.1mg 0 Crusher Oper/Worker
2014-08-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-08-27 Respirable dust, <.1mg 0 Bobcat Operator
2012-09-25 Quartz, respirable, >1% Qtz 0.27 1.26 0.21 Crusher Oper/Worker
2012-09-25 Quartz, respirable, >1% Qtz 0.21 1.27 0.17 Front-end Loader Operator
2012-09-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-12-08 Respirable dust, <.1mg 0 Crusher Oper/Worker
2005-12-08 Respirable dust, <.1mg 0 Front-end Loader Operator
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.

Bluffdale Pit recorded 6.31 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.
6.31
total case rate
0.00
days-away rate
0.000
fatality rate
Above 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 Utah, metal and nonmetal mining averaged 1.89 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 * 6.31 0.00 0.000
2024 * 0.00 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.
Ownership history
  1. Asphalt Materials 1997 to 2023
  2. Kilgore Contracting 2023 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 22
2025 11
2024 14
2023 5
2022 5
2021 5
2020 5
2019 5
2018 4
2017 5
2016 4
2015 4
2014 3
2013 4
2012 3
2011 3
2010 3
2009 3
2008 3
2007 3
2006 3
2005 3
2004 4
2003 4
2002 4
2001 5
2000 4
Source: MSHA quarterly employment and production, updated weekly.

Bluffdale Pit sits in Utah County, Utah, where the Census mining category is 0.2% 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.
Utah County, Utah · Population 683,622
0.2%
Mining share of county employment
$96,877
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 15,058 0 0 0.0
2026 Q1 9,420 0 0 0.0
2025 Q4 8,969 4 0 446.0
2025 Q3 9,264 0 0 0.0
2025 Q2 5,052 3 0 593.8
2025 Q1 8,434 0 0 0.0
2024 Q4 9,900 8 3 808.1
2024 Q3 10,604 5 2 471.5
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 10,165 8 2 787.0
2024 Q1 5,669 0 0 0.0
2023 Q4 9,931 8 6 805.6
2023 Q3 5,889 0 0 0.0
2023 Q2 1,366 2 0 1464.1
2023 Q1 1,163 0 0 0.0
2022 Q4 2,297 5 2 2176.8
2022 Q3 2,987 5 1 1673.9
2022 Q2 3,371 0 0 0.0
2022 Q1 2,858 1 0 349.9
2021 Q4 2,429 0 0 0.0
2021 Q3 2,632 2 0 759.9
2021 Q2 3,022 0 0 0.0
2021 Q1 2,320 0 0 0.0
2020 Q4 2,376 5 0 2104.4
2020 Q3 2,759 0 0 0.0
2020 Q2 2,266 2 0 882.6
2020 Q1 1,814 0 0 0.0
2019 Q4 2,500 2 0 800.0
2019 Q3 3,320 2 0 602.4
2019 Q2 2,905 0 0 0.0
2019 Q1 2,015 1 0 496.3
2018 Q4 1,897 0 0 0.0
2018 Q3 2,400 2 0 833.3
2018 Q2 2,187 0 0 0.0
2018 Q1 2,154 3 0 1392.8
2017 Q4 2,143 0 0 0.0
2017 Q3 2,813 0 0 0.0
2017 Q2 2,367 1 0 422.5
2017 Q1 2,217 2 0 902.1
2016 Q4 2,066 0 0 0.0
2016 Q3 2,878 2 1 694.9
2016 Q2 1,997 0 0 0.0
2016 Q1 2,185 1 0 457.7
2015 Q4 1,816 0 0 0.0
2015 Q3 2,652 0 0 0.0
2015 Q2 1,913 5 1 2613.7
2015 Q1 1,804 0 0 0.0
2014 Q4 1,637 1 0 610.9
2014 Q3 2,167 1 0 461.5
2014 Q2 1,833 0 0 0.0
2014 Q1 1,924 2 1 1039.5
2013 Q4 1,655 0 0 0.0
2013 Q3 3,210 0 0 0.0
2013 Q2 2,560 2 1 781.2
2013 Q1 1,379 0 0 0.0
2012 Q4 1,897 2 1 1054.3
2012 Q3 1,934 0 0 0.0
2012 Q2 2,052 0 0 0.0
2012 Q1 1,442 0 0 0.0
2011 Q4 1,957 1 0 511.0
2011 Q3 1,839 0 0 0.0
2011 Q2 1,457 0 0 0.0
2011 Q1 254 0 0 0.0
2010 Q4 1,590 0 0 0.0
2010 Q3 1,487 0 0 0.0
2010 Q2 1,514 5 1 3302.5
2010 Q1 1,409 3 1 2129.2
2009 Q4 1,734 0 0 0.0
2009 Q3 1,883 0 0 0.0
2009 Q2 1,513 0 0 0.0
2009 Q1 1,339 0 0 0.0
2008 Q4 2,063 5 0 2423.7
2008 Q3 2,139 0 0 0.0
2008 Q2 2,222 0 0 0.0
2008 Q1 1,675 3 0 1791.0
2007 Q4 2,058 0 0 0.0
2007 Q3 2,685 0 0 0.0
2007 Q2 2,071 0 0 0.0
2007 Q1 1,548 0 0 0.0
2006 Q4 2,103 0 0 0.0
2006 Q3 2,210 0 0 0.0
2006 Q2 1,986 0 0 0.0
2006 Q1 1,754 0 0 0.0
2005 Q4 1,764 1 0 566.9
2005 Q3 2,181 2 0 917.0
2005 Q2 1,361 0 0 0.0
2005 Q1 775 0 0 0.0
2004 Q4 2,010 0 0 0.0
2004 Q3 2,389 7 2 2930.1
2004 Q2 2,246 0 0 0.0
2004 Q1 2,382 1 0 419.8
2003 Q4 2,527 0 0 0.0
2003 Q3 2,752 3 0 1090.1
2003 Q2 2,248 0 0 0.0
2003 Q1 2,230 3 1 1345.3
2002 Q4 1,719 0 0 0.0
2002 Q3 2,113 0 0 0.0
2002 Q2 1,967 2 0 1016.8
2002 Q1 1,441 0 0 0.0
2001 Q4 2,094 2 1 955.1
2001 Q3 2,025 0 0 0.0
2001 Q2 2,174 0 0 0.0
2001 Q1 1,212 0 0 0.0
2000 Q4 1,648 0 0 0.0
2000 Q3 1,823 0 0 0.0
2000 Q2 2,311 0 0 0.0
2000 Q1 1,492 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

4 on file

2025 · 1 incident

August 7, 2025 UT · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Kilgore Contracting · Struck by flying object

EE was adjusting screen rail using a wrench. wrench slipped and hit them in the mouth. EE was referred to dentist for extraction and grafting.

2024 · 1 incident

April 23, 2024 UT · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Kilgore Contracting · Struck by... (Not Elsewhere Classified)

EE, working for Sync Aggregate, was using a grinder and it kicked back and cut EE's left forearm. Taken to hospital by co-worker. Received stitches

2023 · 1 incident

June 1, 2023 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 thumb was caught between two flanges when assembling.

2019 · 1 incident

April 9, 2019 UT · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Asphalt Materials · Fall from machine

Started loader to warm it up. Went to get off loader, lost balance and was unable to grab the handrails. Fell and struck hand.