Mining Incidents

Mouth of Wilson Plant: 147 MSHA citations Metal/Non-Metal

Controlled by CRH PLC
Mouth of Wilson, Grayson County, VA  ·  Active
MSHA Mine ID: 4406371

Mouth of Wilson Plant has $33K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
8
Years on record
2004–2023
Latest incident
Oct 2023
Compliance record
MSHA citations since 2000
147
citations
42
significant & substantial
$33,005
proposed penalties
$33,005
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
79
inspections on record
1,609
inspection hours
9.1
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.
147 citations across 1,609 inspection hours.
Source: MSHA inspections data, updated weekly.

Mouth of Wilson Plant has $33K 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.
$33K
proposed penalties
$33K
current assessed
$33K
paid to date
$0
outstanding
147 assessments are final orders; 1 contested dockets.
Of $242 in penalties contested before the Commission, $242 was upheld in final decisions.
As of the most recent assessment on 2024-07-24.
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.
28.6%
significant & substantial
4.8%
high negligence or reckless
28.6%
reasonably likely or greater
70.7%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 7.5% low, 87.8% moderate, 4.8% 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.
2 citations taken to the federal commission · 1% of citations on record
  • Settled 2 · 100%
0%
Penalty reduction in decided contests
$242 proposed, $242 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 2019-12-02.
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
VA 2020-0013 Settlement Rae 2020 $242 → $242
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: 2025-10-27
0%
of limit-tested samples over the exposure limit
48
samples
21
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz22
  • Respirable dust, <.1mg19
  • Unlisted Particulate, respirable, <1% Qtz5
  • Unlisted Particulate, total, <1% Qtz2
Show the individual readings (48)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-10-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-10-27 Respirable dust, <.1mg 0 Bulldozer Operator
2025-10-27 Respirable dust, <.1mg 0 Backhoe Operator
2025-10-27 Respirable dust, <.1mg 0 Backhoe Operator
2025-03-05 Respirable dust, <.1mg 0 Truck Driver
2025-03-05 Respirable dust, <.1mg 0 Backhoe Operator
2025-03-05 Respirable dust, <.1mg 0 Backhoe Operator
2025-03-05 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-07-31 Quartz, respirable, >1% Qtz 0.25 1.01 0.25 Laborer, Bullgang
2024-07-31 Quartz, respirable, >1% Qtz 3.95 Laborer, Bullgang
2024-07-31 Respirable dust, <.1mg 0 Truck Driver
2023-08-21 Respirable dust, <.1mg 0 Backhoe Operator
2023-08-21 Respirable dust, <.1mg 0 Truck Driver
2023-08-21 Quartz, respirable, >1% Qtz 0.24 0.76 0.32 Laborer, Bullgang
2023-08-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-09-22 Respirable dust, <.1mg 0 Truck Driver
2022-09-22 Unlisted Particulate, respirable, <1% Qtz 0.17 Truck Driver
2017-06-08 Unlisted Particulate, respirable, <1% Qtz 0.17 Crusher Oper/Worker
2017-06-08 Quartz, respirable, >1% Qtz 0.15 0.61 0.25 Front-end Loader Operator
2017-06-08 Quartz, respirable, >1% Qtz 0.41 1.9 0.22 Backhoe Operator
2017-03-15 Unlisted Particulate, respirable, <1% Qtz 0.15 Backhoe Operator
2017-03-15 Respirable dust, <.1mg 0 Crusher Oper/Worker
2017-03-15 Unlisted Particulate, respirable, <1% Qtz 0.13 Front-end Loader Operator
2017-03-15 Respirable dust, <.1mg 0 Truck Driver
2016-04-21 Quartz, respirable, >1% Qtz 0.24 1.54 0.16 Building Repair/Maint.
2016-04-21 Quartz, respirable, >1% Qtz 0.2 1.6 0.13 Front-end Loader Operator
2013-07-31 Respirable dust, <.1mg 0 Front-end Loader Operator
2013-07-31 Quartz, respirable, >1% Qtz 0.17 1.44 0.12 Utility Man
2013-07-31 Respirable dust, <.1mg 0 Crusher Oper/Worker
2011-09-13 Respirable dust, <.1mg 0 Truck Driver
2011-09-13 Quartz, respirable, >1% Qtz 0.37 0.66 0.56 Crusher Oper/Worker
2011-09-13 Quartz, respirable, >1% Qtz 0.13 0.62 0.21 Washer Operator
2011-09-13 Quartz, respirable, >1% Qtz 0.17 0.62 0.27 Crusher Oper/Worker
2006-05-23 Unlisted Particulate, total, <1% Qtz 5 Crusher Oper/Worker
2006-05-23 Unlisted Particulate, total, <1% Qtz 8.1 Utility Man
2005-07-26 Quartz, respirable, >1% Qtz 0.47 1.43 0.33 Laborer, Bullgang
2005-07-26 Quartz, respirable, >1% Qtz 0.45 1.17 0.38 Crusher Oper/Worker
2005-07-26 Quartz, respirable, >1% Qtz 0.4 1.12 0.36 Crusher Oper/Worker
2005-07-26 Quartz, respirable, >1% Qtz 0.48 1.51 0.32 Laborer, Bullgang
2004-08-17 Quartz, respirable, >1% Qtz 0.18 0.52 0.35 Dry Screen Plant Operator
2004-08-17 Respirable dust, <.1mg 0 Front-end Loader Operator
2004-08-17 Unlisted Particulate, respirable, <1% Qtz 0.25 Truck Driver
2004-08-17 Quartz, respirable, >1% Qtz 0.13 0.72 0.18 Crusher Oper/Worker
2004-08-17 Quartz, respirable, >1% Qtz 0.34 1.37 0.25 Shovel Operator
2001-10-17 Quartz, respirable, >1% Qtz 0.29 2.45 0.12 Crusher Oper/Worker
2001-06-06 Quartz, respirable, >1% Qtz 1.33 3.22 0.41 Crusher Oper/Worker
2001-06-06 Quartz, respirable, >1% Qtz 0.62 2.1 0.30 Screen/Scalper Operator
2001-06-06 Quartz, respirable, >1% Qtz 0.35 0.71 0.49 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.

Mouth of Wilson Plant recorded 19.42 reportable injury cases per 100 full-time workers in 2023.

Injury rate, 2023
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.
19.42
total case rate
0.00
days-away rate
0.000
fatality rate
Above average. The US metal and nonmetal mining average was 1.78 and the all-US-mining average was 2.10 cases per 100 workers.
In Virginia, metal and nonmetal mining averaged 1.34 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
2023 * 19.42 0.00 0.000
2022 * 0.00 0.00 0.000
2021 * 0.00 0.00 0.000
2008 * 0.00 0.00 0.000
2007 * 0.00 0.00 0.000
2006 * 0.00 0.00 0.000
2005 * 0.00 0.00 0.000
2004 * 13.98 13.98 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. Lyalls Stone Company 1987 to 1996
  2. Lyalls Stone Company Inc 1996 to 1998
  3. Lyall Stone Inc 1999 to 2006
  4. Mountain Materials Inc 2006 to 2020
  5. Appalachian Aggregates, LLC 2021 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 5
2025 9
2024 7
2023 10
2022 15
2021 19
2020 15
2019 9
2018 6
2017 6
2016 8
2015 8
2014 7
2013 6
2012 5
2011 5
2010 6
2009 5
2008 12
2007 13
2006 13
2005 13
2004 17
2003 13
2002 10
2001 11
2000 14
Source: MSHA quarterly employment and production, updated weekly.

Mouth of Wilson Plant sits in Grayson County, Virginia, 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.
Grayson County, Virginia · Population 15,323
0.1%
Mining share of county employment
$42,864
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 3,038 0 0 0.0
2026 Q1 1,909 0 0 0.0
2025 Q4 4,444 0 0 0.0
2025 Q3 5,334 0 0 0.0
2025 Q2 5,158 0 0 0.0
2025 Q1 4,884 0 0 0.0
2024 Q4 4,734 0 0 0.0
2024 Q3 4,975 1 0 201.0
Show 97 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 3,736 0 0 0.0
2024 Q1 2,207 0 0 0.0
2023 Q4 3,254 0 0 0.0
2023 Q3 5,841 0 0 0.0
2023 Q2 5,891 0 0 0.0
2023 Q1 5,614 0 0 0.0
2022 Q4 6,657 1 0 150.2
2022 Q3 6,761 0 0 0.0
2022 Q2 6,158 0 0 0.0
2022 Q1 5,334 0 0 0.0
2021 Q4 6,259 0 0 0.0
2021 Q3 6,905 2 2 289.6
2021 Q2 6,672 0 0 0.0
2021 Q1 5,211 2 0 383.8
2020 Q3 5,450 0 0 0.0
2020 Q2 5,581 4 2 716.7
2020 Q1 5,121 0 0 0.0
2019 Q4 4,312 4 2 927.6
2019 Q3 6,044 0 0 0.0
2019 Q2 3,826 1 0 261.4
2019 Q1 2,863 0 0 0.0
2018 Q4 6,468 4 0 618.4
2018 Q3 3,314 0 0 0.0
2018 Q2 3,961 2 1 504.9
2018 Q1 3,528 0 0 0.0
2017 Q4 2,584 0 0 0.0
2017 Q3 3,034 0 0 0.0
2017 Q2 2,498 2 0 800.6
2017 Q1 4,212 0 0 0.0
2016 Q4 5,055 0 0 0.0
2016 Q3 5,082 0 0 0.0
2016 Q2 3,899 5 2 1282.4
2016 Q1 3,626 2 0 551.6
2015 Q4 3,054 0 0 0.0
2015 Q3 1,849 1 1 540.8
2015 Q2 4,112 0 0 0.0
2015 Q1 3,023 0 0 0.0
2014 Q4 3,852 1 0 259.6
2014 Q3 4,407 0 0 0.0
2014 Q2 4,054 3 3 740.0
2014 Q1 2,586 0 0 0.0
2013 Q4 2,382 1 0 419.8
2013 Q3 3,610 6 2 1662.0
2013 Q2 2,894 0 0 0.0
2013 Q1 2,535 0 0 0.0
2012 Q4 2,440 0 0 0.0
2012 Q3 2,620 0 0 0.0
2012 Q2 3,008 1 0 332.4
2012 Q1 2,581 5 1 1937.2
2011 Q4 2,545 0 0 0.0
2011 Q3 2,662 6 2 2253.9
2011 Q2 2,577 0 0 0.0
2011 Q1 2,797 5 3 1787.6
2010 Q4 2,611 0 0 0.0
2010 Q3 2,836 1 1 352.6
2010 Q2 4,110 0 0 0.0
2010 Q1 1,996 2 0 1002.0
2009 Q4 3,409 0 0 0.0
2009 Q3 3,264 0 0 0.0
2009 Q2 2,899 4 2 1379.8
2009 Q1 1,965 2 0 1017.8
2008 Q4 5,396 0 0 0.0
2008 Q3 6,753 0 0 0.0
2008 Q2 6,894 0 0 0.0
2008 Q1 6,364 1 0 157.1
2007 Q4 6,154 0 0 0.0
2007 Q3 6,014 3 0 498.8
2007 Q2 5,922 0 0 0.0
2007 Q1 6,263 2 0 319.3
2006 Q4 6,377 0 0 0.0
2006 Q3 7,319 0 0 0.0
2006 Q2 6,997 5 1 714.6
2006 Q1 6,559 5 1 762.3
2005 Q4 6,506 0 0 0.0
2005 Q3 7,977 7 1 877.5
2005 Q2 9,650 0 0 0.0
2005 Q1 9,522 12 2 1260.2
2004 Q4 8,656 0 0 0.0
2004 Q3 8,556 5 1 584.4
2004 Q2 7,137 0 0 0.0
2004 Q1 4,270 0 0 0.0
2003 Q4 5,746 0 0 0.0
2003 Q3 7,838 1 0 127.6
2003 Q2 8,206 0 0 0.0
2003 Q1 5,813 3 0 516.1
2002 Q4 4,542 0 0 0.0
2002 Q3 6,705 4 1 596.6
2002 Q2 5,367 0 0 0.0
2002 Q1 4,514 0 0 0.0
2001 Q4 6,046 3 1 496.2
2001 Q3 6,176 0 0 0.0
2001 Q2 6,709 5 4 745.3
2001 Q1 6,884 0 0 0.0
2000 Q4 4,960 0 0 0.0
2000 Q3 6,845 5 1 730.5
2000 Q2 7,644 0 0 0.0
2000 Q1 7,725 7 3 906.1
No fatalities recorded at this mine.

Reportable incidents

8 on file

2023 · 2 incidents

October 5, 2023 VA · Metal/Non-Metal rotary bucket excavator operator SLIP OR FALL OF PERSON
Appalachian Aggregates, LLC · Fall from machine

IP was working on a project to clear trees that were fallen with an excavator and the IP was cutting off limbs to allow the excavator to safely move them to the burn pile. IP was cutting a limb approximately five feet off the ground when the tree rolled back towards IP and the limb IP had just cut hit IP in the chest, knocking IP to the ground.

July 25, 2023 VA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer POWERED HAULAGE
Appalachian Aggregates, LLC · Struck against a moving object

EE was operating a CAT 773 haul truck when EE hit the left side of head on the inside of the operator's cab after hitting a pothole/bump in the road. After seeking medical attention, EE was given medications in the ER but did not receive a written prescription and was released to full duty.

2020 · 1 incident

January 14, 2020 VA · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Mountain Materials Inc · Caught in, under or between a moving and a stationary object

This was a truck driver driving a tandem dump truck. EE had a rock stuck in the tail gate and decided to open the tail gate with hands to get the stuck rock out. Then EE didn't move hand fast enough and the tail gate slammed closed on EE's finger.

2016 · 1 incident

August 3, 2016 VA · Metal/Non-Metal prep plant foreman, supervisor, mill plant supervisor, kiln supervisor MACHINERY
Mountain Materials Inc · Struck by flying object

Employee was walking past a cone crusher when a 10"-12" rock bounced out of crusher striking the employee's hand against the handrail.

2015 · 1 incident

November 11, 2015 VA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mountain Materials Inc · Caught in, under or between a moving and a stationary object

Employee was removing a return roller when his finger was mashed between return roller and conveyor frame.

2007 · 1 incident

November 13, 2007 VA · Metal/Non-Metal mechanic helper OTHER
Mountain Materials Inc · (Not Elsewhere Classified)

Employess of Barnette Contractors was a passenger in vehicle leaving jobsite; driver stopped to check on some equipment, leaving passenger in vehicle. When driver returned, contractor was out of vehicle. Driver found him lying in a ditch near vehicle. Autopsy has revealed a massive heart attack.

2004 · 2 incidents

September 9, 2004 VA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Lyall Stone Inc · Caught in, under or between a moving and a stationary object

The employee was helping put the track back together on the D-10. The chain holding the come-a-long in place snapped allowing the track to roll backwards pinning his foot between the track and the leveling bar.

August 13, 2004 VA · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Lyall Stone Inc · Fall onto or against objects

The ee was exiting the cab of the d-10 dozer. When his foot slipped off the step on the dozer arm blade. This cawed him to straddle the dozer arm blade, causing injury to his groin area.