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DUFF QUARRY #1: 119 MSHA citations Metal/Non-Metal

Duff Quarry Inc · Surface
Huntsville, Logan County, OH  ·  Active
MSHA Mine ID: 3300060

DUFF QUARRY #1 has $25K in proposed MSHA penalties and $0 outstanding across 3 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
6
Years on record
1990–2025
Latest incident
May 2025
Compliance record
MSHA citations since 2002
119
citations
24
significant & substantial
$25,377
proposed penalties
$23,038
paid to date
91% of proposed penalties paid to date, a $2,339 gap.
Source: MSHA violations data, updated weekly.
See Duff Quarry Inc's full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
72
inspections on record
1,210
inspection hours
9.8
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.
119 citations across 1,210 inspection hours.
Source: MSHA inspections data, updated weekly.

DUFF QUARRY #1 has $25K in proposed MSHA penalties and $0 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.
$25K
proposed penalties
$23K
current assessed
$23K
paid to date
$0
outstanding
118 assessments are final orders; 3 contested dockets.
Of $9K in penalties contested before the Commission, $7K was upheld in final decisions.
As of the most recent assessment on 2025-07-29.
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.
20.3%
significant & substantial
5.1%
high negligence or reckless
20.3%
reasonably likely or greater
35.6%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 19.5% low, 75.4% moderate, 5.1% 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.
8 citations taken to the federal commission · 7% of citations on record
  • Settled 8 · 100%
100%
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 4 decided S&S contests · industry: 79%
26%
Penalty reduction in decided contests
$9K proposed, $7K 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 2021-04-11.
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 2009-535M Settlement Lesnick 2010 $5K → $4K
LAKE 2021-0104 Settlement 2021 $2K → $888
LAKE 2021-0103 Settlement 2021 $2K → $2K
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: 2025-07-29
0%
of limit-tested samples over the exposure limit
35
samples
18
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg15
  • Quartz, respirable, >1% Qtz6
  • Arsenic fumes5
  • Beryllium fumes5
Show the individual readings (95)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-07-29 Quartz, respirable, >1% Qtz 0.15 Truck Driver
2025-07-29 Respirable dust, <.1mg 0 Crusher Oper/Worker
2024-11-20 Nuisance dust, respirable, <1% Qtz 0.33 10 0.03 Truck Driver
2024-11-20 Nuisance dust, respirable, <1% Qtz 0.67 10 0.07 Crusher Oper/Worker
2024-11-20 Quartz, respirable, >1% Qtz 0.34 Truck Driver
2024-11-20 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-06-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-06-23 Respirable dust, <.1mg 0 Crusher Oper/Worker
2021-06-23 Respirable dust, <.1mg 0 Truck Driver
2021-06-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2020-02-20 Nickel fumes 0 3 0.00 Welder, etc.
2020-02-20 Zinc oxide fumes 0 10 0.00 Welder, etc.
2020-02-20 Manganese fumes 0.08 5 0.02 Welder, etc.
2020-02-20 Molybdenum fumes 0 20 0.00 Welder, etc.
2020-02-20 Vanadium fumes 0 50 0.00 Welder, etc.
2020-02-20 Arsenic fumes 0 1500 0.00 Welder, etc.
2020-02-20 Beryllium fumes 0 6 0.00 Welder, etc.
2020-02-20 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2020-02-20 Chromium, insoluble 0 3 0.00 Welder, etc.
2020-02-20 Cobalt fumes 0 300 0.00 Welder, etc.
2020-02-20 Copper fumes 0 300 0.00 Welder, etc.
2020-02-20 Iron oxide fumes 0.72 20 0.04 Welder, etc.
2020-02-20 Lead fumes 0 450 0.00 Welder, etc.
2020-02-20 Magnesium oxide fumes 0 20 0.00 Welder, etc.
2015-05-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2015-05-27 Respirable dust, <.1mg 0 Mechanic
2015-05-27 Quartz, respirable, >1% Qtz 0.14 1.13 0.12 Laborer, Bullgang
2014-08-06 Respirable dust, <.1mg 0 Complete Load-Haul-Dump
2014-08-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-08-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-04-06 Nuisance dust, respirable, <1% Qtz 0.16 10 0.02 Crusher Oper/Worker
2011-04-06 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-09-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-09-15 Quartz, respirable, >1% Qtz 0.26 2.1 0.12 Dry Screen Plant Operator
2009-09-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-09-15 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-05-05 Lead fumes 8.63 450 0.02 Welder, etc.
2009-05-05 Magnesium oxide fumes 0.25 20 0.01 Welder, etc.
2009-05-05 Manganese fumes 0.4 5 0.08 Welder, etc.
2009-05-05 Molybdenum fumes 0 20 0.00 Welder, etc.
2009-05-05 Nickel fumes 0 3 0.00 Welder, etc.
2009-05-05 Vanadium fumes 0 50 0.00 Welder, etc.
2009-05-05 Zinc oxide fumes 0.04 10 0.00 Welder, etc.
2009-05-05 Arsenic fumes 0 1500 0.00 Welder, etc.
2009-05-05 Beryllium fumes 0 6 0.00 Welder, etc.
2009-05-05 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2009-05-05 Chromium, insoluble 0.17 3 0.06 Welder, etc.
2009-05-05 Cobalt fumes 0 300 0.00 Welder, etc.
2009-05-05 Copper fumes 0 300 0.00 Welder, etc.
2009-05-05 Iron oxide fumes 1.62 20 0.08 Welder, etc.
2009-05-05 Lead fumes 0 450 0.00 Welder, etc.
2009-05-05 Magnesium oxide fumes 0.24 20 0.01 Welder, etc.
2009-05-05 Manganese fumes 0.37 5 0.07 Welder, etc.
2009-05-05 Molybdenum fumes 0 20 0.00 Welder, etc.
2009-05-05 Nickel fumes 0 3 0.00 Welder, etc.
2009-05-05 Vanadium fumes 0 50 0.00 Welder, etc.
2009-05-05 Zinc oxide fumes 0 10 0.00 Welder, etc.
2009-05-05 Arsenic fumes 0 1500 0.00 Welder, etc.
2009-05-05 Beryllium fumes 0 6 0.00 Welder, etc.
2009-05-05 Cadmium oxide fumes 13.73 100 0.14 Welder, etc.
2009-05-05 Chromium, insoluble 0.01 3 0.00 Welder, etc.
2009-05-05 Cobalt fumes 0 300 0.00 Welder, etc.
2009-05-05 Copper fumes 8.24 300 0.03 Welder, etc.
2009-05-05 Iron oxide fumes 0.75 20 0.04 Welder, etc.
2009-05-05 Lead fumes 134.51 450 0.30 Welder, etc.
2009-05-05 Magnesium oxide fumes 0.24 20 0.01 Welder, etc.
2009-05-05 Manganese fumes 0.16 5 0.03 Welder, etc.
2009-05-05 Molybdenum fumes 0 20 0.00 Welder, etc.
2009-05-05 Nickel fumes 0 3 0.00 Welder, etc.
2009-05-05 Vanadium fumes 0 50 0.00 Welder, etc.
2009-05-05 Zinc oxide fumes 0.08 10 0.01 Welder, etc.
2009-05-05 Arsenic fumes 0 1500 0.00 Welder, etc.
2009-05-05 Beryllium fumes 0 6 0.00 Welder, etc.
2009-05-05 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2009-05-05 Chromium, insoluble 0.15 3 0.05 Welder, etc.
2009-05-05 Cobalt fumes 0 300 0.00 Welder, etc.
2009-05-05 Copper fumes 0 300 0.00 Welder, etc.
2009-05-05 Iron oxide fumes 1.6 20 0.08 Welder, etc.
2009-05-05 Lead fumes 9.8 450 0.02 Welder, etc.
2009-05-05 Magnesium oxide fumes 0.23 20 0.01 Welder, etc.
2009-05-05 Manganese fumes 0.33 5 0.07 Welder, etc.
2009-05-05 Molybdenum fumes 0 20 0.00 Welder, etc.
2009-05-05 Nickel fumes 0 3 0.00 Welder, etc.
2009-05-05 Vanadium fumes 0 50 0.00 Welder, etc.
2009-05-05 Zinc oxide fumes 0.04 10 0.00 Welder, etc.
2009-05-05 Arsenic fumes 0 1500 0.00 Welder, etc.
2009-05-05 Beryllium fumes 0 6 0.00 Welder, etc.
2009-05-05 Cadmium oxide fumes 0 100 0.00 Welder, etc.
2009-05-05 Chromium, insoluble 0.18 3 0.06 Welder, etc.
2009-05-05 Cobalt fumes 0 300 0.00 Welder, etc.
2009-05-05 Copper fumes 0 300 0.00 Welder, etc.
2009-05-05 Iron oxide fumes 1.63 20 0.08 Welder, etc.
2004-08-11 Nuisance dust, respirable, <1% Qtz 0.22 10 0.02 Crusher Oper/Worker
2004-08-11 Quartz, respirable, >1% Qtz 0.13 1.34 0.10 Truck Driver
2004-08-11 Quartz, respirable, >1% Qtz 0.25 1.88 0.13 Truck Driver
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.

DUFF QUARRY #1 recorded 7.02 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.
7.02
total case rate
7.02
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 Ohio, metal and nonmetal mining averaged 1.56 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 * 7.02 7.02 0.000
2024 * 0.00 0.00 0.000
2023 * 0.00 0.00 0.000
2022 * 0.00 0.00 0.000
2021 * 3.99 3.99 0.000
2020 * 0.00 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. Duff Quarry Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 29
2025 29
2024 28
2023 30
2022 27
2021 22
2020 22
2019 23
2018 21
2017 22
2016 20
2015 19
2014 17
2013 16
2012 16
2011 16
2010 15
2009 16
2008 17
2007 17
2006 17
2005 15
2004 12
2003 12
2002 12
2001 15
2000 15
Source: MSHA quarterly employment and production, updated weekly.

DUFF QUARRY #1 sits in Logan County, Ohio, 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.
Logan County, Ohio · Population 46,140
0.1%
Mining share of county employment
$69,183
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 15,868 0 0 0.0
2026 Q1 14,429 0 0 0.0
2025 Q4 14,597 0 0 0.0
2025 Q3 16,275 4 0 245.8
2025 Q2 11,760 0 0 0.0
2025 Q1 14,318 0 0 0.0
2024 Q4 17,017 1 0 58.8
2024 Q3 14,962 1 0 66.8
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 16,645 0 0 0.0
2024 Q1 12,704 0 0 0.0
2023 Q4 15,666 0 0 0.0
2023 Q3 15,192 0 0 0.0
2023 Q2 19,130 2 0 104.5
2023 Q1 14,268 0 0 0.0
2022 Q4 17,895 1 0 55.9
2022 Q3 13,374 0 0 0.0
2022 Q2 15,957 3 0 188.0
2022 Q1 10,461 0 0 0.0
2021 Q4 12,776 2 0 156.5
2021 Q3 14,702 0 0 0.0
2021 Q2 11,569 1 0 86.4
2021 Q1 11,025 5 2 453.5
2020 Q4 13,282 0 0 0.0
2020 Q3 14,122 0 0 0.0
2020 Q2 11,818 2 0 169.2
2020 Q1 12,403 4 1 322.5
2019 Q4 12,949 0 0 0.0
2019 Q3 14,530 5 0 344.1
2019 Q2 11,735 0 0 0.0
2019 Q1 11,995 5 0 416.8
2018 Q4 11,398 0 0 0.0
2018 Q3 13,112 0 0 0.0
2018 Q2 10,848 1 1 92.2
2018 Q1 11,680 2 2 171.2
2017 Q4 10,526 0 0 0.0
2017 Q3 13,591 10 1 735.8
2017 Q2 12,383 0 0 0.0
2017 Q1 12,369 0 0 0.0
2016 Q4 11,066 0 0 0.0
2016 Q3 12,671 0 0 0.0
2016 Q2 10,589 9 3 849.9
2016 Q1 11,202 0 0 0.0
2015 Q4 12,132 0 0 0.0
2015 Q3 10,463 0 0 0.0
2015 Q2 11,730 1 0 85.3
2015 Q1 9,052 0 0 0.0
2014 Q4 10,757 1 1 93.0
2014 Q3 9,186 1 0 108.9
2014 Q2 10,134 0 0 0.0
2014 Q1 7,664 4 1 521.9
2013 Q4 9,891 0 0 0.0
2013 Q3 8,472 0 0 0.0
2013 Q2 9,425 7 3 742.7
2013 Q1 7,301 0 0 0.0
2012 Q4 9,162 2 0 218.3
2012 Q3 8,105 1 0 123.4
2012 Q2 9,683 0 0 0.0
2012 Q1 8,294 3 1 361.7
2011 Q4 10,334 0 0 0.0
2011 Q3 8,571 0 0 0.0
2011 Q2 9,880 5 3 506.1
2011 Q1 7,791 0 0 0.0
2010 Q4 9,123 0 0 0.0
2010 Q3 9,515 0 0 0.0
2010 Q2 8,105 2 0 246.8
2010 Q1 7,937 0 0 0.0
2009 Q4 9,920 1 0 100.8
2009 Q3 10,617 0 0 0.0
2009 Q2 8,766 7 2 798.5
2009 Q1 9,718 0 0 0.0
2008 Q4 8,917 4 0 448.6
2008 Q3 10,714 0 0 0.0
2008 Q2 9,451 3 0 317.4
2008 Q1 9,933 2 0 201.3
2007 Q4 8,910 0 0 0.0
2007 Q3 11,186 1 0 89.4
2007 Q2 9,264 1 0 107.9
2007 Q1 9,834 0 0 0.0
2006 Q4 9,183 0 0 0.0
2006 Q3 10,734 6 2 559.0
2006 Q2 9,002 0 0 0.0
2006 Q1 10,414 2 0 192.0
2005 Q4 8,675 0 0 0.0
2005 Q3 9,922 2 0 201.6
2005 Q2 8,505 0 0 0.0
2005 Q1 7,216 0 0 0.0
2004 Q4 7,348 0 0 0.0
2004 Q3 7,546 1 1 132.5
2004 Q2 7,280 0 0 0.0
2004 Q1 6,453 1 0 155.0
2003 Q4 7,206 0 0 0.0
2003 Q3 8,131 1 0 123.0
2003 Q2 7,252 0 0 0.0
2003 Q1 6,069 0 0 0.0
2002 Q4 7,947 0 0 0.0
2002 Q3 7,594 0 0 0.0
2002 Q2 7,024 1 0 142.4
2002 Q1 4,944 1 0 202.3
2001 Q4 8,698 0 0 0.0
2001 Q3 8,518 0 0 0.0
2001 Q2 8,941 0 0 0.0
2001 Q1 8,839 0 0 0.0
2000 Q4 9,326 0 0 0.0
2000 Q3 9,115 0 0 0.0
2000 Q2 8,683 0 0 0.0
2000 Q1 8,310 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

6 on file

2025 · 2 incidents

May 22, 2025 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech OTHER
Duff Quarry Inc · Unclassified, insufficient data

While working on a F-150 fuel tank fill nozzle, the mechanic felt a pop, instant pain in upper back, ribs and chest and the left side went numb.

January 3, 2025 OH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Duff Quarry Inc · Struck by falling object

Miner was standing on a conveyor catwalk and leaned a piece of 1/4" thick, 3" angle approximately 46" long against the handrail. The piece of angle fell on its side on the walkway with the corner of the angle landing on the miner's foot just behind the steel toe section of the boot.

2021 · 1 incident

January 20, 2021 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Duff Quarry Inc · Struck by falling object

MINER WAS WORKING ON A PIPE, PARTIAL PART OF A DIRT WALL FELL AND HIT THE MINER'S LEG.

2017 · 1 incident

May 10, 2017 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Duff Quarry Inc · Fall to the walkway or working surface

Worker attempted to loosen a bolt with a wrench, hand slipped off causing employee to fall from their feet.

2016 · 1 incident

May 31, 2016 OH · Metal/Non-Metal POWERED HAULAGE
Duff Quarry Inc · Accident type, without injuries

While stockpiling a 769D haul rig, sunk on the edge of a stockpile and slid down the face of the stockpile a few feet. The Miner was retrieved using a man lift, and the haul rig was lowered the rest of the way down the stockpile using two 992 loaders. The miner did not have any injuries and was checked out by EMT's as a precautionary measure. The haul rig sustained no damage.

1990 · 1 incident

February 15, 1990 OH · Metal/Non-Metal FIRE
Duff Quarry Inc · Accident type, without injuries

FIRE DESTROY OFFICE & MAINTENANCE SHOP & SCALE OFFICE