Mining Incidents

Walls Materials Plant 2: 65 MSHA citations Metal/Non-Metal

Walls Materials · Surface
Fort Jefferson, Darke County, OH  ·  Intermittent
MSHA Mine ID: 3301384

Walls Materials Plant 2 has $7K in proposed MSHA penalties and $0 outstanding across 5 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
21
Years on record
1986–2024
Latest incident
Apr 2024
Compliance record
MSHA citations since 2000
65
citations
19
significant & substantial
$7,187
proposed penalties
$7,099
paid to date
99% of proposed penalties paid to date, a $88 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
55
inspections on record
832
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: 832 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Walls Materials Plant 2 has $7K in proposed MSHA penalties and $0 outstanding across 5 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.
$7K
proposed penalties
$7K
current assessed
$7K
paid to date
$0
outstanding
64 assessments are final orders; 5 contested dockets.
Of $877 in penalties contested before the Commission, $481 was upheld in final decisions.
As of the most recent assessment on 2022-03-07.
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.
29.7%
significant & substantial
3.1%
high negligence or reckless
29.7%
reasonably likely or greater
39.1%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 32.8% low, 64.1% moderate, 3.1% 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.
6 citations taken to the federal commission · 9% of citations on record
  • Settled 3 · 50%
  • Vacated or withdrawn 3 · 50%
50%
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 2 decided S&S contests · industry: 79%
58%
Penalty reduction in decided contests
$615 proposed, $260 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 2011-09-16.
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 2011-1046M Settlement Paez 2012 $300 → $200
LAKE20010025M Settlement Barbour 2001 $262 → $221
LAKE 2009-708M Withdrawal Lesnick 2010 $108 → $0
LAKE 2004-139M Settlement Weisberger 2005 $107 → $60
LAKE 2011-973M Withdrawal Lesnick 2011 $100 → $0
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: 2026-06-23
0%
of limit-tested samples over the exposure limit
22
samples
4
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg17
  • Nuisance dust, respirable, <1% Qtz3
  • Quartz, respirable, >1% Qtz1
  • Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (22)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-06-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2026-06-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-09-21 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-09-21 Respirable dust, <.1mg 0 Utility Man
2021-09-21 Respirable dust, <.1mg 0 Utility Man
2014-10-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-10-29 Nuisance dust, respirable, <1% Qtz 0.13 10 0.01 Utility Man
2012-02-23 Respirable dust, <.1mg 0 Front-end Loader Operator
2011-07-12 Nuisance dust, respirable, <1% Qtz 1.48 10 0.15 Crusher Oper/Worker
2011-07-12 Quartz, respirable, >1% Qtz 0.33 0.55 0.60 Front-end Loader Operator
2011-07-12 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-10-22 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-10-22 Respirable dust, <.1mg 0 Crusher Oper/Worker
2003-10-22 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-10-22 Respirable dust, <.1mg 0 Utility Man
2002-07-31 Respirable dust, <.1mg 0 Utility Man
2002-07-31 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-07-31 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-07-31 Unlisted Particulate, respirable, <1% Qtz 0.31 Crusher Oper/Worker
2002-04-24 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-04-24 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-04-24 Nuisance dust, respirable, <1% Qtz 0.48 10 0.05 Crusher Oper/Worker
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.

Walls Materials Plant 2 recorded 0.00 reportable injury cases per 100 full-time workers in 2003.

Injury rate, 2003
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 3.76 and the all-US-mining average was 4.43 cases per 100 workers.
In Ohio, metal and nonmetal mining averaged 4.36 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
2003 * 0.00 0.00 0.000
2001 * 13.29 13.29 0.000
2000 * 32.34 24.25 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. American Aggregates Corp 1950 to 1987
  2. American Aggregates Corp 1987 to 1989
  3. American Aggregates Corp 1989 to 1990
  4. American Aggregates Corp 1990 to 1997
  5. Walls Materials 1997 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 4
2025 3
2024 4
2023 6
2022 5
2021 6
2020 5
2019 5
2018 6
2017 5
2016 5
2015 4
2014 4
2013 3
2012 3
2011 3
2010 4
2009 6
2008 7
2007 8
2006 8
2005 8
2004 9
2003 8
2002 8
2001 13
2000 10
Source: MSHA quarterly employment and production, updated weekly.

Walls Materials Plant 2 sits in Darke County, Ohio, 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.
Darke County, Ohio · Population 51,655
0.2%
Mining share of county employment
$64,654
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 1,906 0 0 0.0
2026 Q1 2,275 0 0 0.0
2025 Q4 1,758 0 0 0.0
2025 Q3 0 0 0
2025 Q2 2,377 0 0 0.0
2025 Q1 1,307 0 0 0.0
2024 Q4 1,681 0 0 0.0
2024 Q3 920 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,291 0 0 0.0
2024 Q1 925 0 0 0.0
2023 Q4 1,805 0 0 0.0
2023 Q3 2,216 0 0 0.0
2023 Q2 1,352 0 0 0.0
2023 Q1 1,207 0 0 0.0
2022 Q4 1,744 0 0 0.0
2022 Q3 1,966 0 0 0.0
2022 Q2 1,753 0 0 0.0
2022 Q1 1,805 1 0 554.0
2021 Q4 1,823 0 0 0.0
2021 Q3 2,639 1 0 378.9
2021 Q2 2,510 0 0 0.0
2021 Q1 1,544 0 0 0.0
2020 Q4 1,615 0 0 0.0
2020 Q3 3,233 1 0 309.3
2020 Q2 2,437 0 0 0.0
2020 Q1 530 0 0 0.0
2019 Q4 1,027 0 0 0.0
2019 Q3 2,206 1 0 453.3
2019 Q2 2,556 0 0 0.0
2019 Q1 1,302 0 0 0.0
2018 Q4 2,060 0 0 0.0
2018 Q3 2,134 0 0 0.0
2018 Q2 2,768 3 2 1083.8
2018 Q1 1,722 0 0 0.0
2017 Q4 982 0 0 0.0
2017 Q3 1,283 1 0 779.4
2017 Q2 3,338 0 0 0.0
2017 Q1 2,263 0 0 0.0
2016 Q4 1,882 0 0 0.0
2016 Q3 1,393 2 2 1435.8
2016 Q2 1,916 0 0 0.0
2016 Q1 850 1 0 1176.5
2015 Q4 1,832 0 0 0.0
2015 Q3 1,463 0 0 0.0
2015 Q2 2,782 0 0 0.0
2015 Q1 2,329 0 0 0.0
2014 Q4 1,725 7 4 4058.0
2014 Q3 2,105 0 0 0.0
2014 Q2 2,969 0 0 0.0
2014 Q1 914 0 0 0.0
2013 Q4 669 0 0 0.0
2013 Q3 1,062 0 0 0.0
2013 Q2 1,207 0 0 0.0
2013 Q1 1,533 0 0 0.0
2012 Q4 505 0 0 0.0
2012 Q3 722 0 0 0.0
2012 Q2 2,155 0 0 0.0
2012 Q1 1,606 2 0 1245.3
2011 Q4 681 0 0 0.0
2011 Q3 1,822 2 0 1097.7
2011 Q2 1,872 0 0 0.0
2011 Q1 1,982 2 1 1009.1
2010 Q4 1,419 0 0 0.0
2010 Q3 1,895 4 1 2110.8
2010 Q2 1,714 0 0 0.0
2010 Q1 1,843 1 0 542.6
2009 Q4 2,525 0 0 0.0
2009 Q3 2,967 0 0 0.0
2009 Q2 4,192 0 0 0.0
2009 Q1 3,743 0 0 0.0
2008 Q4 3,922 0 0 0.0
2008 Q3 3,922 0 0 0.0
2008 Q2 3,988 1 0 250.8
2008 Q1 3,762 1 0 265.8
2007 Q4 4,615 0 0 0.0
2007 Q3 5,030 2 0 397.6
2007 Q2 3,262 0 0 0.0
2007 Q1 3,717 0 0 0.0
2006 Q4 5,159 0 0 0.0
2006 Q3 3,611 0 0 0.0
2006 Q2 3,994 1 0 250.4
2006 Q1 3,605 0 0 0.0
2005 Q4 3,346 1 0 298.9
2005 Q3 3,901 0 0 0.0
2005 Q2 4,238 1 0 236.0
2005 Q1 4,740 0 0 0.0
2004 Q4 4,785 3 0 627.0
2004 Q3 4,335 0 0 0.0
2004 Q2 4,620 2 1 432.9
2004 Q1 3,960 0 0 0.0
2003 Q4 6,019 5 0 830.7
2003 Q3 4,634 0 0 0.0
2003 Q2 5,639 0 0 0.0
2003 Q1 4,429 1 0 225.8
2002 Q4 4,297 0 0 0.0
2002 Q3 4,773 2 0 419.0
2002 Q2 5,448 1 0 183.6
2002 Q1 4,898 0 0 0.0
2001 Q4 7,814 0 0 0.0
2001 Q3 7,762 0 0 0.0
2001 Q2 9,184 6 3 653.3
2001 Q1 5,347 0 0 0.0
2000 Q4 6,782 0 0 0.0
2000 Q3 7,888 3 2 380.3
2000 Q2 5,167 0 0 0.0
2000 Q1 4,904 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

21 on file

2024 · 1 incident

April 29, 2024 OH · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Walls Materials · Struck by... (Not Elsewhere Classified)

Removing zip ties from cable bundle and cut gloved hand with razor knife requiring stitches. Employee returned to work the same day with no work restrictions or modifications.

2015 · 1 incident

May 18, 2015 OH · Metal/Non-Metal utility man, shift tech, service/dump truck operator SLIP OR FALL OF PERSON
Walls Materials · Fall from ladders

Miner was performing maintenance on primary takeout belt gear box. Lost balance while on ladder and fell +/- 3 feet spraining ankle.

2008 · 1 incident

May 5, 2008 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Walls Materials · Struck by falling object

Miner was unplugging rocks jammed in jaw crusher when two large rocks shifted pinching little finger on left hand

2004 · 1 incident

March 30, 2004 OH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDTOOLS (NONPOWERED)
Walls Materials · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS CUTTING A CONVEYOR BELT WITH A UTILITY KNIFE WHEN THE KNIFE SLIPPED AND CUT HIS HAND.

2001 · 2 incidents

April 17, 2001 OH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Walls Materials · Fall from machine

EE WAS CLIMBING DOWN A STEP LADDE,R HIS FOOT SLIPPED AND FELL APPROXIMATELY THREE FEET TO GROUND.

March 6, 2001 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Walls Materials · Over-exertion in lifting objects

EE WAS PICKING UP A BELT ROLLER TO LOAD ON WELDING TRAILER. WHEN HE PULLED A MUSCLE IN HIS BACK.

2000 · 4 incidents

September 23, 2000 OH · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Walls Materials · Struck by flying object

EMPLOYEE'S WERE REMOVING TABLE SHOE'S FROM SPOKANE CRUSHER WITH A SLEDGE HAMMER WHEN A SLIVER OF STEEL FLEW OFF AND EMBEDDED IN EMPLOYEE'S FOREARM.

August 22, 2000 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Walls Materials · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS STANDING BEHIND A PACKED PICK-UP WHEN ANTOHER EMPLOYEE PULLED UP BEHIND HIM IN PIT TRUCK TO PARK, THE PIT TRUCK ROLLED FORWARD PINCHING HIS KNEE BETWEEN THE TWO BUMPERS.

July 29, 2000 OH · Metal/Non-Metal miner, nec SLIP OR FALL OF PERSON
Walls Materials · Fall from machine

EE WAS WORKING ON ROCK BOX, ABOVE DRY SCREEN, CUTTING OUT LOWER SHELF. BOX FLIPPED, THROWING EE.

June 27, 2000 OH · Metal/Non-Metal mine manager, mine foreman, mine owner HANDLING OF MATERIALS
Walls Materials · Over-exertion in lifting objects

PULLING SAMPLES OUT OF CONVEYOR 60-70 LIFTED UP AND HAD SHARP PAINS IN LOWER BACK.

1999 · 1 incident

March 11, 1999 OH · Metal/Non-Metal outside foreman, leadman MACHINERY
Walls Materials · Struck by... (Not Elsewhere Classified)

GRINDING ON A STEEL PLATE WITH HAND GRINDER, WHEN GRINDER GOT CAUGHT. CAUSING IT TO FLIP BACK ACROSS THE TOP OF LEFT HAND.

1998 · 4 incidents

October 27, 1998 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Walls Materials · Over-exertion (Not Elsewhere Classified)

LOADING BARRELS OF OIL IN THE LOADER BUCKET TO TAKE DOWN TO QUARRY. PULLED LOWER BACK

October 12, 1998 OH · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Walls Materials · Struck against stationary object

LOOSENING A NUT ON BEARING BLOCK. WHEN WRENCH SLIPPED OFF AND HE HIT HIS THUMB ON A LADDER.

May 27, 1998 OH · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Walls Materials · Fall from machine

EE WAS CHECKING OIL IN FRONTEND LOADER WHEN HIS FOOT SLIPPED OFF REAR LADDER

February 23, 1998 OH · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
Walls Materials · Fall onto or against objects

EMPLYEE WAS CARRYING SOME TOOLS UP SIDEOFRAMP AND SLIPPED AND FELL BACK AGAINST THE FRAME OF JAWCRUSHER.

1997 · 2 incidents

July 17, 1997 OH · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Walls Materials · Struck by... (Not Elsewhere Classified)

ASSISTED CHANGING SCREENS IN WASHING PLANT. SCREEN BECAME LODGED OR STUCK-ATTEMPTED TOBREAK SCREEN LOOSE BY LIFTING SCREEN ON THE UNBOUND EDGE. SCREEN CAME LOOSE & WEIGHT OF SCREEN COMBINED WI TH THE SHARP WIRE EDGES LACERATED FINGER.

May 28, 1997 OH · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Walls Materials · Struck by... (Not Elsewhere Classified)

CLEANING CONVEYOR ROLLER WHEN SCRAPER GOT CAUGHTIN BELT & THEN HANDLE HIT HIM IN THE MOUTH & CUT HIS LIP & KNOCKED OUT ONE TOOTH & CHIPPED THE OTHER FRONT TOOTH.

1993 · 1 incident

September 14, 1993 OH · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
American Aggregates Corp · Struck by falling object

WEATHER CONDITIONS WERE DRY AND CLEAR WORK ASSIGNMENT WAS TO REMOVE SIDE PLATES FROM ROCK BOX. CHAIN ATTACHED TO HYDRAULIC HOISTING DEVICE, FAILED, CAUSING PLATE TO FALL ACROSS SCREEN, STRIK ING FOOT OF EMPLOYEE. PLANT WAS LOCKED OUT.

1989 · 1 incident

July 17, 1989 OH · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
American Aggregates Corp · Struck against stationary object

CLEANING AREA WITH WATER HOSE HOSE NOT REMOVING MATERIAL IN CORNER REACHED IN WITH HAND TO REMOVE MATERIAL CUT FINGER ON PC OF BROKEN GLASS

1988 · 1 incident

September 14, 1988 OH · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
American Aggregates Corp · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS IN THE SURGE TUNNEL SHOVELING SILT FROM A WALKWAY WHEN HE SLIPPED. TO KEEP FROM FALLING HE GRABBED AN ANGLE AND TWISTED HIS BACK.

1986 · 1 incident

May 1, 1986 OH · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
American Aggregates Corp · Fall to the walkway or working surface

I NAME WAS REPL5CING LIGHT BULBS IN T HE PLANT TUNNEL PRIOR TO CLEANING IT WHEN HE SLIPPED ON THE WET AND MUDDY FLOOR TWISTING HIS LEFT KNEE