Mining Incidents

Bolingbrook Underground: 155 MSHA citations Metal/Non-Metal

Controlled by Vulcan Materials Company
Naperville, Will County, IL  ·  Active
MSHA Mine ID: 1103149

Bolingbrook Underground has $29K in proposed MSHA penalties and $46 outstanding across 10 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
7
Years on record
2007–2019
Latest incident
Oct 2019
Compliance record
MSHA citations since 2006
155
citations
33
significant & substantial
$29,425
proposed penalties
$24,444
paid to date
83% of proposed penalties paid to date, a $4,981 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2005
97
inspections on record
2,914
inspection hours
5.3
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.
155 citations across 2,914 inspection hours.
Source: MSHA inspections data, updated weekly.

Bolingbrook Underground has $29K in proposed MSHA penalties and $46 outstanding across 10 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.
$29K
proposed penalties
$24K
current assessed
$24K
paid to date
$46
outstanding
155 assessments are final orders; 10 contested dockets.
Of $15K in penalties contested before the Commission, $8K was upheld in final decisions.
As of the most recent assessment on 2024-06-04.
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.
21.3%
significant & substantial
2.6%
high negligence or reckless
21.9%
reasonably likely or greater
26.5%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 51.0% low, 46.5% moderate, 2.6% 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.
38 citations taken to the federal commission · 25% of citations on record
  • Settled 31 · 82%
  • Stood as issued 1 · 3%
  • Vacated or withdrawn 6 · 16%
67%
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 21 decided S&S contests · industry: 79%
46%
Penalty reduction in decided contests
$15K proposed, $8K 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 2017-06-11.
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
LAKE 2017-0296 Settlement Moran 2018 $4K → $1K
LAKE 2016-0005 Settlement Miller 2016 $3K → $3K
LAKE 2014-123M Settlement Barbour 2014 $2K → $460
LAKE 2016-0327 Settlement Gill 2016 $2K → $2K
LAKE 2010-872M Settlement Zielinski 2011 $540 → $100
LAKE 2011-143M Default Lesnick 2011 $540 → $540
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: 2025-09-16
6%
of limit-tested samples over the exposure limit
71
samples
62
limit-tested
Most sampled contaminants
  • Diesel particulate (total carbon)394 over
  • Nuisance dust, respirable, <1% Qtz11
  • Respirable dust, <.1mg8
  • TC as EC @ 3507
Show the individual readings (100)
Date Contaminant Concentration Limit Conc / limit Occupation
2016-10-05 TC @ 160 206 160 1.29 Blaster, Powder Gang
2016-10-05 TC from EC @ 160 196 160 1.23 Blaster, Powder Gang
2011-05-17 TC @ 160 180 160 1.13 Crusher Oper/Worker
2009-06-03 TC @ 160 266 160 1.66 Roof Bolter, Rock
2009-06-03 TC @ 160 184 160 1.15 Blaster, Powder Gang
2025-09-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2019-05-22 Nuisance dust, respirable, <1% Qtz 0.25 10 0.03 Utility Man
2019-05-22 Quartz, respirable, >1% Qtz 0.13 Utility Man
2019-05-22 Nuisance dust, total, <1% Qtz 0.38 10 0.04 Utility Man
2019-03-13 TC @ 160 55 160 0.34 Blaster, Powder Gang
2019-03-13 EC @ 160 31 160 0.19 Blaster, Powder Gang
2019-03-13 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2019-03-13 TC @ 160 58 160 0.36 Blaster, Powder Gang
2019-03-13 EC @ 160 31 160 0.19 Blaster, Powder Gang
2019-03-13 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2018-06-06 EC @ 160 0 160 0.00 Front-end Loader Operator
2018-06-06 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2018-06-06 TC @ 160 70 160 0.44 Drill Helper
2018-06-06 EC @ 160 41 160 0.26 Drill Helper
2018-06-06 TC from EC @ 160 0 160 0.00 Drill Helper
2018-06-06 TC @ 160 0 160 0.00 Front-end Loader Operator
2018-06-06 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2018-06-06 EC @ 160 38 160 0.24 Blaster, Powder Gang
2018-06-06 TC @ 160 72 160 0.45 Blaster, Powder Gang
2016-10-05 EC @ 160 144 160 0.90 Blaster, Powder Gang
2016-10-05 TC @ 160 38 160 0.24 Truck Driver
2016-10-05 EC @ 160 31 160 0.19 Truck Driver
2016-10-05 TC from EC @ 160 0 160 0.00 Truck Driver
2016-10-05 TC @ 160 126 160 0.79 Roof Bolter, Rock
2016-10-05 EC @ 160 98 160 0.61 Roof Bolter, Rock
2016-10-05 TC from EC @ 160 0 160 0.00 Roof Bolter, Rock
2016-10-05 TC @ 160 28 160 0.18 Front-end Loader Operator
2016-10-05 EC @ 160 23 160 0.14 Front-end Loader Operator
2016-10-05 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2016-10-05 TC @ 160 2 160 0.01 Scaling (mechanical)
2016-10-05 EC @ 160 2 160 0.01 Scaling (mechanical)
2016-10-05 TC from EC @ 160 0 160 0.00 Scaling (mechanical)
2016-10-05 Quartz, respirable, >1% Qtz 0.35 2.26 0.15 Truck Driver
2016-10-05 Nuisance dust, respirable, <1% Qtz 0.7 10 0.07 Crusher Oper/Worker
2016-10-04 Respirable dust, <.1mg 0 Utility Man
2016-10-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-10-04 Nuisance dust, respirable, <1% Qtz 0.12 10 0.01 Cleanup Man
2015-11-18 TC @ 160 81 160 0.51 Blaster, Powder Gang
2015-11-18 EC @ 160 51 160 0.32 Blaster, Powder Gang
2015-11-18 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2015-11-18 TC @ 160 3 160 0.02 Roof Bolter, Rock
2015-11-18 EC @ 160 0 160 0.00 Roof Bolter, Rock
2015-11-18 TC from EC @ 160 0 160 0.00 Roof Bolter, Rock
2015-09-10 TC @ 160 33 160 0.21 Front-end Loader Operator
2015-09-10 EC @ 160 27 160 0.17 Front-end Loader Operator
2015-09-10 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2015-09-10 TC @ 160 36 160 0.23 Scaling (mechanical)
2015-09-10 EC @ 160 33 160 0.21 Scaling (mechanical)
2015-09-10 TC from EC @ 160 0 160 0.00 Scaling (mechanical)
2015-09-10 TC @ 160 116 160 0.73 Roof Bolter, Rock
2015-09-10 EC @ 160 95 160 0.59 Roof Bolter, Rock
2015-09-10 TC from EC @ 160 0 160 0.00 Roof Bolter, Rock
2014-06-04 TC @ 160 115 160 0.72 Blaster, Powder Gang
2014-06-04 EC @ 160 83 160 0.52 Blaster, Powder Gang
2014-06-04 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2014-06-04 TC @ 160 12 160 0.08 Front-end Loader Operator
2014-06-04 EC @ 160 7 160 0.04 Front-end Loader Operator
2014-06-04 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2014-06-04 TC @ 160 0 160 0.00 Truck Driver
2014-06-04 EC @ 160 0 160 0.00 Truck Driver
2014-06-04 TC from EC @ 160 0 160 0.00 Truck Driver
2013-08-07 TC @ 160 28 160 0.18 Roof Bolter, Mounted
2013-08-07 EC @ 160 28 160 0.18 Roof Bolter, Mounted
2013-08-07 TC from EC @ 160 0 160 0.00 Roof Bolter, Mounted
2012-07-18 EC @ 160 7 160 0.04 Scaling (mechanical)
2012-07-18 TC from EC @ 160 0 160 0.00 Scaling (mechanical)
2012-07-18 TC @ 160 12 160 0.08 Scaling (mechanical)
2012-07-18 TC from EC @ 160 0 160 0.00 Truck Driver
2012-07-18 EC @ 160 14 160 0.09 Truck Driver
2012-07-18 TC @ 160 21 160 0.13 Truck Driver
2012-07-18 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2012-07-18 EC @ 160 8 160 0.05 Front-end Loader Operator
2012-07-18 TC @ 160 10 160 0.06 Front-end Loader Operator
2012-07-18 TC from EC @ 160 0 160 0.00 Roof Bolter, Rock
2012-07-18 EC @ 160 34 160 0.21 Roof Bolter, Rock
2012-07-18 TC @ 160 56 160 0.35 Roof Bolter, Rock
2011-11-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-11-30 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-11-30 Nuisance dust, respirable, <1% Qtz 0.16 10 0.02 Laborer, Bullgang
2011-11-30 Nuisance dust, respirable, <1% Qtz 0.14 10 0.01 Laborer, Bullgang
2011-05-18 Nuisance dust, respirable, <1% Qtz 0.66 10 0.07 Building Repair/Maint.
2011-05-18 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-05-18 Nuisance dust, respirable, <1% Qtz 0.21 10 0.02 Laborer, Bullgang
2011-05-17 EC @ 160 23 160 0.14 Blaster, Powder Gang
2011-05-17 TC from EC @ 160 0 160 0.00 Blaster, Powder Gang
2011-05-17 TC @ 160 3 160 0.02 Front-end Loader Operator
2011-05-17 TC from EC @ 160 0 160 0.00 Front-end Loader Operator
2011-05-17 EC @ 160 3 160 0.02 Front-end Loader Operator
2011-05-17 EC @ 160 96 160 0.60 Crusher Oper/Worker
2011-05-17 TC from EC @ 160 0 160 0.00 Crusher Oper/Worker
2011-05-17 TC @ 160 53 160 0.33 Drill Operator, Jumbo Perc.
2011-05-17 EC @ 160 21 160 0.13 Drill Operator, Jumbo Perc.
2011-05-17 TC from EC @ 160 0 160 0.00 Drill Operator, Jumbo Perc.
2011-05-17 TC @ 160 43 160 0.27 Blaster, Powder Gang
Showing 100 of 156 laboratory readings: every over-limit reading, then the most recent. MSHA reads one air sample several times, so readings outnumber the samples counted above. The full set is in MSHA's Personal Health Samples file.

Area samples (mill and shop air)

Last sampled: 2016-10-05, 9 years ago
2
samples
Show the individual readings (6)
Date Contaminant Concentration Limit Conc / limit Area sampled
2016-10-05 TC from EC @ 160 0 UG TRAVEL/HAULAGE A
2016-10-05 EC @ 160 186 UG TRAVEL/HAULAGE A
2016-10-05 TC @ 160 252 UG TRAVEL/HAULAGE A
2009-06-03 TC from EC @ 160 0 BASE OF VENTILATION
2009-06-03 EC @ 160 165 BASE OF VENTILATION
2009-06-03 TC @ 160 212 BASE OF VENTILATION
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.

Bolingbrook Underground recorded 0.00 reportable injury cases per 100 full-time workers in 2020.

Injury rate, 2020
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 1.77 and the all-US-mining average was 2.08 cases per 100 workers.
In Illinois, metal and nonmetal mining averaged 1.87 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
2020 * 0.00 0.00 0.000
2019 * 4.47 0.00 0.000
2018 * 0.00 0.00 0.000
2017 * 0.00 0.00 0.000
2016 * 0.00 0.00 0.000
2015 * 0.00 0.00 0.000
2014 * 0.00 0.00 0.000
2013 * 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. Vulcan Construction Materials, LLC 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 6
2025 5
2024 5
2023 4
2022 4
2021 4
2020 21
2019 22
2018 18
2017 22
2016 26
2015 27
2014 26
2013 20
2012 24
2011 22
2010 25
2009 24
2008 30
2007 29
2006 28
2005 10
Source: MSHA quarterly employment and production, updated weekly.

Bolingbrook Underground sits in Will County, Illinois, where the Census mining category is 0.1% 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.
Will County, Illinois · Population 698,450
0.1%
Mining share of county employment
$107,799
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 1,604 0 0 0.0
2026 Q1 1,927 0 0 0.0
2025 Q4 2,418 0 0 0.0
2025 Q3 2,086 0 0 0.0
2025 Q2 2,015 0 0 0.0
2025 Q1 1,927 0 0 0.0
2024 Q4 2,095 0 0 0.0
2024 Q3 1,800 0 0 0.0
Show 75 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,241 1 0 446.2
2024 Q1 403 0 0 0.0
2023 Q4 68 4 0 58823.5
2023 Q3 67 0 0 0.0
2023 Q2 46 0 0 0.0
2023 Q1 95 3 0 31578.9
2022 Q4 19 0 0 0.0
2022 Q3 313 0 0 0.0
2022 Q2 595 2 0 3361.3
2022 Q1 154 1 0 6493.5
2021 Q4 388 0 0 0.0
2021 Q3 111 0 0 0.0
2021 Q2 392 0 0 0.0
2021 Q1 147 0 0 0.0
2020 Q4 3,450 0 0 0.0
2020 Q3 4,557 0 0 0.0
2020 Q2 12,382 1 0 80.8
2020 Q1 8,502 0 0 0.0
2019 Q4 9,915 1 0 100.9
2019 Q3 9,237 1 0 108.3
2019 Q2 13,680 5 4 365.5
2019 Q1 11,907 3 1 252.0
2018 Q4 8,973 0 0 0.0
2018 Q3 11,731 0 0 0.0
2018 Q2 12,567 4 0 318.3
2018 Q1 8,081 3 0 371.2
2017 Q4 12,622 0 0 0.0
2017 Q3 11,114 0 0 0.0
2017 Q2 11,758 1 0 85.0
2017 Q1 9,657 10 1 1035.5
2016 Q4 8,445 2 0 236.8
2016 Q3 16,372 0 0 0.0
2016 Q2 16,200 3 2 185.2
2016 Q1 12,403 0 0 0.0
2015 Q4 12,198 0 0 0.0
2015 Q3 17,465 4 3 229.0
2015 Q2 15,551 23 12 1479.0
2015 Q1 9,447 1 0 105.9
2014 Q4 9,880 4 0 404.9
2014 Q3 17,552 1 0 57.0
2014 Q2 11,293 4 1 354.2
2014 Q1 6,393 1 0 156.4
2013 Q4 17,038 0 0 0.0
2013 Q3 15,750 8 2 507.9
2013 Q2 11,452 1 0 87.3
2013 Q1 5,352 0 0 0.0
2012 Q4 11,611 9 1 775.1
2012 Q3 16,249 1 0 61.5
2012 Q2 14,821 0 0 0.0
2012 Q1 6,473 0 0 0.0
2011 Q4 12,656 4 1 316.1
2011 Q3 17,307 0 0 0.0
2011 Q2 14,724 1 0 67.9
2011 Q1 5,783 0 0 0.0
2010 Q4 14,139 5 0 353.6
2010 Q3 14,754 2 0 135.6
2010 Q2 14,151 1 0 70.7
2010 Q1 6,968 0 0 0.0
2009 Q4 12,572 1 0 79.5
2009 Q3 17,668 0 0 0.0
2009 Q2 17,721 1 0 56.4
2009 Q1 11,658 0 0 0.0
2008 Q4 14,868 0 0 0.0
2008 Q3 19,291 1 0 51.8
2008 Q2 19,628 0 0 0.0
2008 Q1 17,338 0 0 0.0
2007 Q4 16,252 0 0 0.0
2007 Q3 21,067 1 0 47.5
2007 Q2 20,360 2 0 98.2
2007 Q1 17,442 4 1 229.3
2006 Q4 16,709 2 0 119.7
2006 Q3 17,159 0 0 0.0
2006 Q2 16,464 2 0 121.5
2006 Q1 11,425 5 0 437.6
2005 Q4 5,046 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

7 on file

2019 · 1 incident

October 12, 2019 IL · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Vulcan Construction Materials, LLC · Struck against a moving object

Employee was scaling in a scaler when the cab lift cylinder bolt sheered off causing the cab to drop suddenly jarring employee in the cab. It fell approximately 13 inches where it hit a cab bumper block. The employee claimed to have a sore back and neck. The supervisor took the employee to the clinic and was diagnosed with a strained lower back and neck with restrictions.

2013 · 1 incident

November 27, 2013 IL · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

NON-WORK RELATED INCIDENT. 2 employees decided to come to work a half hour early to swap a personal television in the employee parking lot before work started. The injured EE attempted to pick up the TV and set it back down in the fellow EE's personal vehicle, the TV landed on his right middle finger causing a laceration. The EE received 7 stitches and released without restriction.

2010 · 3 incidents

October 6, 2010 IL · Metal/Non-Metal bull gang foreman, labor foreman, leadman, section foreman, shift boss STEPPING OR KNEELING ON OBJECT
Vulcan Construction Materials, LLC · Struck against stationary object

The employee was attempting to remove a shanked drill steel from the face by standing on the tool box in the back of his pickup. When the employee stepped down from the tool box he stepped onto a wheel chock fracturing his ankle.

September 9, 2010 IL · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

Working area had a small hump in floor. Employee was in the process tying in the explosive round when he picked up the detonation cord from the rear of the explosives vehicle. He turned to his right to walk back to the face. A small hump in the floor caused employee to roll his right ankle causing the fracture to his right tibula and fibula.

June 23, 2010 IL · Metal/Non-Metal blaster, shooter, shotfirer, explosive worker, powder gang/monkey MACHINERY
Vulcan Construction Materials, LLC · Struck by flying object

Employee removed a pump motor from the housing to determine the reason for no pressure. When pump was plugged in the impeller broke and a section struck him. The injury required 5 stitches in his lip.

2008 · 1 incident

November 19, 2008 IL · Metal/Non-Metal roof bolter, rock bolter, pinner, mobile roof support operator (mrs) HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Struck by... (Not Elsewhere Classified)

The mine had recently changed resin suppliers and new boxes are fully glued. The miner used a razor knife to open the end of the resin box. The miner steadied the box with his left hand while cutting toward it with the knife in his right hand. The blade exited the cardboard and cut the left hand. The miner was taken to a medical facility and received stitches.

2007 · 1 incident

July 23, 2007 IL · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

Employee was assisting a vendor in lowering an equipment part out of the back of a truck at the surface maintenance shop when he heard a tearing sound. When he looked down at his arm he saw that the bicep muscle was out of place. Diagnosed as a ruptured biceps tendon and placed on restricted duty 07/24/07.