Mining Incidents

Valley Stone: 126 MSHA citations Metal/Non-Metal

Controlled by CRH PLC
Olive Hill, Carter County, KY  ·  Active
MSHA Mine ID: 1500001

Valley Stone has $76K in proposed MSHA penalties and $1 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
1983–2024
Latest incident
Aug 2024
Compliance record
MSHA citations since 2000
126
citations
37
significant & substantial
$76,277
proposed penalties
$72,020
paid to date
94% of proposed penalties paid to date, a $4,257 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
54
inspections on record
1,274
inspection hours
9.9
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.
126 citations across 1,274 inspection hours.
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: 2014-03-19.
On record since 2014.
Source: MSHA imminent-danger order records, updated weekly.

Valley Stone has $76K in proposed MSHA penalties and $1 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.
$76K
proposed penalties
$72K
current assessed
$72K
paid to date
$1
outstanding
123 assessments are final orders; 2 contested dockets.
Of $21K in penalties contested before the Commission, $17K was upheld in final decisions.
As of the most recent assessment on 2026-05-20.
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.
30.1%
significant & substantial
11.4%
high negligence or reckless
30.1%
reasonably likely or greater
43.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 13.0% low, 75.6% moderate, 10.6% high, 0.8% reckless.
Source: MSHA violations gravity and negligence coding, updated weekly.
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
KENT20010151M Settlement Bulluck 2001 $18K → $14K
KENT20010063M Settlement Cetti 2001 $3K → $3K
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: 2026-05-20
0%
of limit-tested samples over the exposure limit
27
samples
8
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg15
  • Quartz, respirable, >1% Qtz7
  • Nuisance dust, respirable, <1% Qtz4
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (27)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-05-20 Respirable dust, <.1mg 0 Truck Driver
2026-05-20 Respirable dust, <.1mg 0 Bobcat Operator
2026-05-20 Quartz, respirable, >1% Qtz 0.14 Crusher Oper/Worker
2026-05-20 Unlisted Particulate, respirable, <1% Qtz 1.04 Front-end Loader Operator
2024-02-07 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Front-end Loader Operator
2024-02-07 Respirable dust, <.1mg 0 Truck Driver
2024-02-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-02-07 Respirable dust, <.1mg 0 Bulldozer Operator
2022-03-08 Nuisance dust, respirable, <1% Qtz 0.28 10 0.03 Front-end Loader Operator
2022-03-08 Respirable dust, <.1mg 0 Truck Driver
2022-03-08 Respirable dust, <.1mg 0 Truck Driver
2022-03-08 Quartz, respirable, >1% Qtz 0.14 Rotary Bucket Ex. Operator
2022-03-08 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-09-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2018-09-06 Quartz, respirable, >1% Qtz 0.58 Oiler, Greaser
2018-09-06 Respirable dust, <.1mg 0 Truck Driver
2016-03-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2016-03-01 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Bobcat Operator
2016-03-01 Nuisance dust, respirable, <1% Qtz 0.14 10 0.01 Front-end Loader Operator
2016-03-01 Quartz, respirable, >1% Qtz 0.41 1.72 0.24 Crusher Oper/Worker
2016-03-01 Respirable dust, <.1mg 0 Truck Driver
2014-10-23 Quartz, respirable, >1% Qtz 0.65 2.17 0.30 Crusher Oper/Worker
2014-10-23 Respirable dust, <.1mg 0 Truck Driver
2014-10-23 Quartz, respirable, >1% Qtz 0.52 1.81 0.29 Laborer, Bullgang
2011-03-30 Quartz, respirable, >1% Qtz 0.97 2.85 0.34 Laborer, Bullgang
2011-03-30 Respirable dust, <.1mg 0 Truck Driver
2011-03-30 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.

Valley Stone 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 Kentucky, metal and nonmetal mining averaged 2.17 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 * 5.13 0.00 0.000
2023 * 3.96 0.00 0.000
2022 * 4.77 0.00 0.000
2021 * 0.00 0.00 0.000
2020 * 4.50 0.00 0.000
2019 * 0.00 0.00 0.000
2018 * 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. Acme Stone Company 1950 to 1991
  2. Standard Lafarge 1991 to 1994
  3. Ruth Brothers Inc 1994 to 2001
  4. Valley Stone Llc 2001 to 2009
  5. Mountain Materials Inc 2009 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 17
2025 20
2024 22
2023 26
2022 25
2021 26
2020 25
2019 27
2018 24
2017 26
2016 21
2015 20
2014 21
2013 21
2012 27
2011 17
2010 15
2002 0
2001 1
2000 10
Source: MSHA quarterly employment and production, updated weekly.

Valley Stone sits in Carter County, Kentucky, where the Census mining category is 0.4% 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.
Carter County, Kentucky · Population 26,515
0.4%
Mining share of county employment
$50,389
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 8,359 5 1 598.2
2026 Q1 5,855 1 0 170.8
2025 Q4 7,615 0 0 0.0
2025 Q3 9,408 1 0 106.3
2025 Q2 9,130 0 0 0.0
2025 Q1 7,849 1 0 127.4
2024 Q4 9,030 0 0 0.0
2024 Q3 10,042 0 0 0.0
Show 62 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 10,648 1 1 93.9
2024 Q1 9,241 2 1 216.4
2023 Q4 11,093 0 0 0.0
2023 Q3 12,753 1 0 78.4
2023 Q2 13,614 5 1 367.3
2023 Q1 13,081 1 0 76.4
2022 Q4 9,912 0 0 0.0
2022 Q3 12,855 0 0 0.0
2022 Q2 11,312 7 2 618.8
2022 Q1 7,877 0 0 0.0
2021 Q4 10,310 2 0 194.0
2021 Q3 11,803 2 0 169.4
2021 Q2 12,406 1 0 80.6
2021 Q1 10,820 0 0 0.0
2020 Q4 10,405 2 0 192.2
2020 Q3 10,950 0 0 0.0
2020 Q2 10,805 2 1 185.1
2020 Q1 12,248 0 0 0.0
2019 Q4 13,638 3 1 220.0
2019 Q3 14,550 0 0 0.0
2019 Q2 17,211 0 0 0.0
2019 Q1 13,061 0 0 0.0
2018 Q4 11,523 1 0 86.8
2018 Q3 12,185 2 1 164.1
2018 Q2 12,667 0 0 0.0
2018 Q1 10,069 1 1 99.3
2017 Q4 9,963 0 0 0.0
2017 Q3 12,135 0 0 0.0
2017 Q2 11,572 1 1 86.4
2017 Q1 10,238 0 0 0.0
2016 Q4 11,868 4 0 337.0
2016 Q3 11,766 0 0 0.0
2016 Q2 12,895 5 0 387.7
2016 Q1 11,865 5 1 421.4
2015 Q4 12,120 0 0 0.0
2015 Q3 13,351 0 0 0.0
2015 Q2 12,506 2 1 159.9
2015 Q1 10,502 0 0 0.0
2014 Q4 10,778 2 0 185.6
2014 Q3 11,686 1 0 85.6
2014 Q2 11,070 0 0 0.0
2014 Q1 8,050 2 1 248.4
2013 Q4 7,270 1 0 137.6
2013 Q3 10,900 3 0 275.2
2013 Q2 11,390 0 0 0.0
2013 Q1 11,612 2 0 172.2
2012 Q4 8,123 0 0 0.0
2012 Q3 9,704 1 1 103.1
2012 Q2 12,362 0 0 0.0
2012 Q1 11,547 0 0 0.0
2011 Q3 8,452 0 0 0.0
2011 Q2 4,956 0 0 0.0
2011 Q1 2,640 2 1 757.6
2010 Q4 1,966 2 0 1017.3
2002 Q2 0 0 0
2002 Q1 0 0 0
2001 Q2 0 0 0
2001 Q1 711 0 0 0.0
2000 Q4 2,716 0 0 0.0
2000 Q3 7,493 2 0 266.9
2000 Q2 8,104 3 2 370.2
2000 Q1 9,106 26 15 2855.3
No fatalities recorded at this mine.

Reportable incidents

6 on file

2024 · 1 incident

August 12, 2024 KY · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Mountain Materials Inc · Struck by falling object

employee was installing universal joint on 773 B Cat haul truck, Universal joint slipped out of spline off driveline. Striking employee on right side of head. Employee went to Grayson Urgent treatment center, Four staples were attached to close wound, employee returned to work with no restrictions.

2023 · 1 incident

August 29, 2023 KY · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Mountain Materials Inc · Struck by falling object

Miner was manually removing bucket from skid steer and as the bucket released it fell striking miner in right shin. Miner was transported to medical facility and received 8 stitches.

2022 · 1 incident

June 2, 2022 KY · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS
Mountain Materials Inc · Over-exertion in pulling or pushing objects

Employee stated employee had experienced shoulder pain while working on screen deck.

2020 · 1 incident

January 21, 2020 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mountain Materials Inc · Over-exertion in pulling or pushing objects

The date of the incident was 12/2/2019 and was reported by employee on 12/3/2019. EE said right shoulder was hurting, but wasn't sure they did it on the job. An accident report was filled out. After a visit to family Dr. and MRI, an orthopedic Dr. said the injury might be a new injury. EE reported this result to company on 01/21/2020 at 1:56 pm.

2013 · 1 incident

April 16, 2013 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mountain Materials Inc · Over-exertion (Not Elsewhere Classified)

The employee was helping turn blow bars in Impact Crusher, he was standing inside Impact waiting on co-worker to lower bars to him with boom truck when he felt his right calf muscle pull in his leg. He said it didn't bother him at the time and called me around 6:30 pm at home and said it was getting sore. He went to doctor that night and got pain meds. He never missed any work.

1983 · 1 incident

May 10, 1983 KY · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Acme Stone Company · Fall to the walkway or working surface

ANKLE GAVE AWAY (TURNED) AND FELL RT COLLARBONE BROKEN