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: 768 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Troy Gravel has $2K in proposed MSHA penalties and $0 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.
$2K
proposed penalties
$2K
current assessed
$2K
paid to date
$0
outstanding
21 assessments are final orders; 2 contested dockets.
Of $324 in penalties contested before the Commission, $208 was upheld in final decisions.
As of the most recent assessment on 2019-03-19.
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.
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.
2citations taken to the federal commission · 10% of citations on record
Settled
2 · 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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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 2 decided S&S contests · industry: 79%
36%
Penalty reduction in decided contests
$324 proposed, $208 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 A dismissed or defaulted contest leaves the citation standing as issued; a vacated or withdrawn citation is removed from the violation record.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 2011-01-21.
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.
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: 2023-11-15
0%
of limit-tested samples over the exposure limit
16
samples
3
limit-tested
Most sampled contaminants
Respirable dust, <.1mg12
Quartz, respirable, >1% Qtz2
Nuisance dust, respirable, <1% Qtz1
Unlisted Particulate, respirable, <1% Qtz1
Show the individual readings (16)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2023-11-15
Respirable dust, <.1mg
0
Utility Man
2023-11-15
Respirable dust, <.1mg
0
Crusher Oper/Worker
2021-07-27
Nuisance dust, respirable, <1% Qtz
1.15
10
0.12
Dredge/Barge Operator
2021-07-27
Respirable dust, <.1mg
0
Front-end Loader Operator
2021-07-27
Respirable dust, <.1mg
0
Crusher Oper/Worker
2017-07-26
Respirable dust, <.1mg
0
Dredge/Barge Operator
2017-07-26
Respirable dust, <.1mg
0
Cleanup Man
2017-07-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2010-05-12
Respirable dust, <.1mg
0
Crusher Oper/Worker
2010-05-12
Respirable dust, <.1mg
0
Front-end Loader Operator
2004-05-20
Respirable dust, <.1mg
0
Crusher Oper/Worker
2004-05-20
Unlisted Particulate, respirable, <1% Qtz
0.2
Laborer, Bullgang
2004-05-20
Respirable dust, <.1mg
0
Dredge/Barge Operator
2003-05-14
Quartz, respirable, >1% Qtz
1.5
2.52
0.60
Utility Man
2003-05-14
Quartz, respirable, >1% Qtz
0.39
1.43
0.27
Utility Man
2003-05-14
Respirable dust, <.1mg
0
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.
Troy Gravel recorded 0.00 reportable injury cases per 100 full-time workers in 2002.
Injury rate, 2002
ⓘ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 4.17 and the all-US-mining average was 5.05 cases per 100 workers.
In Ohio, metal and nonmetal mining averaged 3.93 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
2002 *
0.00
0.00
0.000
2001 *
18.02
9.01
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
5
2025
5
2024
5
2023
5
2022
5
2021
5
2020
4
2019
5
2018
5
2017
5
2016
5
2015
5
2014
6
2013
6
2012
6
2011
5
2010
5
2009
5
2008
3
2007
6
2006
7
2005
7
2004
7
2003
7
2002
10
2001
10
2000
8
Source: MSHA quarterly employment and production, updated weekly.
Troy Gravel sits in Miami 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.
Miami County, Ohio · Population 109,549
0.2%
Mining share of county employment
$74,175
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
2,647
0
0
0.0
2026 Q1
2,327
0
0
0.0
2025 Q4
2,264
0
0
0.0
2025 Q3
2,364
0
0
0.0
2025 Q2
2,716
0
0
0.0
2025 Q1
2,260
0
0
0.0
2024 Q4
2,757
0
0
0.0
2024 Q3
2,555
0
0
0.0
Show 98 earlier quartersHide earlier quarters
Quarter
Hours worked
Citations
S&S
Per 1M hrs
2024 Q2
2,334
0
0
0.0
2024 Q1
2,376
0
0
0.0
2023 Q4
2,750
0
0
0.0
2023 Q3
2,761
0
0
0.0
2023 Q2
2,666
0
0
0.0
2023 Q1
1,927
0
0
0.0
2022 Q4
3,223
0
0
0.0
2022 Q3
3,472
0
0
0.0
2022 Q2
3,641
0
0
0.0
2022 Q1
2,124
0
0
0.0
2021 Q4
2,823
0
0
0.0
2021 Q3
2,614
0
0
0.0
2021 Q2
2,839
0
0
0.0
2021 Q1
1,384
0
0
0.0
2020 Q4
1,441
0
0
0.0
2020 Q3
1,892
0
0
0.0
2020 Q2
1,735
0
0
0.0
2020 Q1
1,250
0
0
0.0
2019 Q4
1,625
0
0
0.0
2019 Q3
3,106
0
0
0.0
2019 Q2
2,771
0
0
0.0
2019 Q1
1,080
1
0
925.9
2018 Q4
2,322
0
0
0.0
2018 Q3
2,845
1
0
351.5
2018 Q2
2,778
0
0
0.0
2018 Q1
2,538
0
0
0.0
2017 Q4
2,967
0
0
0.0
2017 Q3
2,970
1
1
336.7
2017 Q2
3,022
0
0
0.0
2017 Q1
2,286
0
0
0.0
2016 Q4
3,130
0
0
0.0
2016 Q3
3,572
0
0
0.0
2016 Q2
3,152
2
0
634.5
2016 Q1
2,493
0
0
0.0
2015 Q4
4,496
2
0
444.8
2015 Q3
3,476
0
0
0.0
2015 Q2
3,616
1
0
276.5
2015 Q1
1,948
0
0
0.0
2014 Q4
2,820
0
0
0.0
2014 Q3
3,290
0
0
0.0
2014 Q2
3,156
0
0
0.0
2014 Q1
2,267
1
0
441.1
2013 Q4
3,264
0
0
0.0
2013 Q3
3,827
0
0
0.0
2013 Q2
3,600
2
0
555.6
2013 Q1
2,510
0
0
0.0
2012 Q4
3,302
0
0
0.0
2012 Q3
3,505
0
0
0.0
2012 Q2
3,412
0
0
0.0
2012 Q1
2,069
0
0
0.0
2011 Q4
2,607
0
0
0.0
2011 Q3
3,123
0
0
0.0
2011 Q2
2,859
0
0
0.0
2011 Q1
1,962
0
0
0.0
2010 Q4
2,640
2
1
757.6
2010 Q3
3,455
0
0
0.0
2010 Q2
2,760
2
1
724.6
2010 Q1
1,626
0
0
0.0
2009 Q4
2,317
0
0
0.0
2009 Q3
3,015
0
0
0.0
2009 Q2
2,946
0
0
0.0
2009 Q1
1,343
0
0
0.0
2008 Q4
900
0
0
0.0
2008 Q3
1,244
0
0
0.0
2008 Q2
1,469
0
0
0.0
2008 Q1
1,424
0
0
0.0
2007 Q4
2,026
0
0
0.0
2007 Q3
3,749
0
0
0.0
2007 Q2
4,125
0
0
0.0
2007 Q1
2,269
0
0
0.0
2006 Q4
4,400
0
0
0.0
2006 Q3
4,975
0
0
0.0
2006 Q2
5,215
0
0
0.0
2006 Q1
4,099
0
0
0.0
2005 Q4
4,705
0
0
0.0
2005 Q3
4,971
0
0
0.0
2005 Q2
5,142
0
0
0.0
2005 Q1
3,685
0
0
0.0
2004 Q4
4,958
0
0
0.0
2004 Q3
4,777
0
0
0.0
2004 Q2
5,003
0
0
0.0
2004 Q1
4,043
0
0
0.0
2003 Q4
4,083
0
0
0.0
2003 Q3
4,473
0
0
0.0
2003 Q2
4,201
0
0
0.0
2003 Q1
2,685
0
0
0.0
2002 Q4
4,498
0
0
0.0
2002 Q3
6,066
0
0
0.0
2002 Q2
6,736
0
0
0.0
2002 Q1
3,911
0
0
0.0
2001 Q4
5,629
0
0
0.0
2001 Q3
6,293
0
0
0.0
2001 Q2
6,297
0
0
0.0
2001 Q1
3,977
0
0
0.0
2000 Q4
5,110
0
0
0.0
2000 Q3
5,202
3
0
576.7
2000 Q2
4,553
0
0
0.0
2000 Q1
2,738
0
0
0.0
No fatalities recorded at this mine.
Reportable incidents
25 on file
2018 · 1 incident
April 30, 2018OH · Metal/Non-Metalbarge/boat/dredge/towbarge/towboat/leach operator, riverman, deck handHANDTOOLS (NONPOWERED)
EE WAS HELPING OTHER CHANGE MOTOR ON P-1 WAS PULLING ON V BELTS ON MOTOR CHIVE WHEN MY LEFT ARM STARTED HURTING ALSO HAD A TINGLING SENSATION IN SAME ARM.
July 19, 1999OH · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorSLIP OR FALL OF PERSON
NINE EE WAS HELPING THREE OTHER EES LIFTING 4"X6" TUBES BEAM 8'LX1/4 THICK FOR FABRICION HOPPER GRIZZLY ALSO LIFTING UP NEW MOTOR MOUNT INSTALL ON TXT 6 GREAR REDUCE CONVEYOR.
October 2, 1998OH · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDLING OF MATERIALS
EE WAS HELPING THE WELDER INSTALL A TWO PART GUARD ON THE CONE CRUSHER. HE WAS HOLDING IT IN PLACE BY ONE PART, WHEN THE OTHER PART SLIPPED AND CRUSHED HIS LEFT THUMB BETWEEN THE TWO PART.
June 6, 1998OH · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorPOWERED HAULAGE
HAD A BIG FLAT ROCK STUCK IN THE FEEDER. I TOOK A BAR AND GOT IT OUT. IT WAS TOO BIG TO LAY DOWN ON BELT, SO I STOOD IT UP ON ITS EDGE AND HAD COWORKER START THE BELT SO IT COULD RIDE IT OUT O F THE HOPPER. IT WAS EGG-SHAPED. I HAD TO HOLD THE ROCK ON ITS EDGE. WHEN THE BELT STARTED, THE ROCK ROLLED BACK AND STOOD ON ITS END AND JAMMED MY RIGHT HAND UP INTO ANGLE IRON "X" BRACE.
January 5, 1998OH · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverSLIP OR FALL OF PERSON
STEEL TRUCK DRIVER WAS OFF LOADING 8X10 STEEL PLATE FROM FLAT BED TRUCK. 4X4'S WERE PERMANENTLY MOUNTED TO THE FLOOR AS A MEANS TO LAY PLATE. DRIVER TRIPPED ON 4X4 AND FELL APPROX 41/2 FT TO GROUND
EMPLOYEE WAS WORKING WITH CREW OF 3 MEN TRYING TO CHAIN AND LIFT DREDGE SLEEVE, IN ORDER TO REALL BACK TO DREDGE PIPE. HOIST BOOM CABLE BROKE AT FRAME HIT EMPLOYEE ON SHOULDER, KNOCKING HIM TO DESK. CONTUSIONS TO SHOULDER.
September 30, 1997OH · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorSLIP OR FALL OF PERSON
EMPLOYEE WAS CHANGING HEADLIGHT ON LOADER. FOOT SLIPPED OFF STEP. HE FELL TOG ROUND, LANDING STIFF LEGGED, THEN FELL BACKWARDS HITTING HIS HEAD AND BACK.
July 14, 1997OH · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
EMPLOYEE WAS INSIDE CONE CRUSHER TO UNPLUG THE ROCK INSIDE THE CRUSHER. WHEN HE TRIED TO GE TOUT HIS CHEST GOT STUCK IN BETWEEN THE FEED PLATE AND MAIN FRAME BOWL.
1996 · 2 incidents
June 17, 1996OH · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
CHANGING SCREEN CLOTH AND WAS LIFTING A CLOTH ONTO THE SCREEN AND BACK STARTED HURTING. EMP HAS A BACK PROBLEM FROM A PREVIOUS INJURY AT ANOTHERPLANT. THIS IS AN AGGRAVATION OF A PREVIOUS INJU RY.
February 12, 1996OH · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanMACHINERY
CUTTING A BOLT ON A SHAKER SCREEN, HOT SLAG OFF OF BOLT WENT UP THE SLEEVE OF COVERALLS, BURNINGLEFT ARM. HE PUT A BAND AID ON IT, 2 DAYS LATER,THE BURN GOT INFECTED, HE WENT TO THE MEDICAL CE NTER, THEY GAVE HIM ANTIBODES, A PRESCRIPTION AND HE RETURNED AT REGULAR JOB.
1995 · 1 incident
March 9, 1995OH · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDTOOLS (NONPOWERED)
WAS PUTTING A CHUTE BACK ON THAT WAS REMOVED FOR REPAIR. USING A COME-A-LONG TO LIFT INTO PLACE. EMPLOYEE WAS GUIDING THE CHUTE TO ALIGN HOLES. A PRY BAR WAS USED TO MOVE. THE CHUTE SHIFTED AN D CAUGHT RING FINGER OF LEFT HAND. CRUSHED AND CUT THE FINGER FROM FIRST JOINT TO THE TIP.
1994 · 1 incident
November 8, 1994OH · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorDISORDERS (REPEATED TRAUMA)
COMPLAINED OF ARM ADN HAND HURTING TOOK TO HEALTH CENTER, POSSIBLE CT SYNDROME FROM REPEATED MOTION OF PICKING MUD OFF BELT. EE SIAD IT HAD BEEN BOETHERING HIM FOR A LONG WHIHLE BUT NOW IT IS GETTING WORSE.
1993 · 1 incident
April 29, 1993OH · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
THREE EMPLS WERE LIFTING A WEAR PLATE UP ON THE CRUSHER BOWL.ONE EMPL TOLD THEM TO LET IT GO & EVERYONE DID,IT WEADGED & INJURED EMPL REACHEDINTO TRY TO FREE & AT THE SAME TIME ANOTHER EMPL PUSHED ON THE LINER & IT SLIPPED DOWN & CAUGHT INJURED EMPLS FINGER BEFORE HE COULD MOVE HIS HAND.
1992 · 1 incident
November 20, 1992OH · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDLING OF MATERIALS
08-28-91 7:30 AM INJURED AND ANOTHER EMPLOYEE WERE MOVING SWING GEAR COVER TO THE SIDE WHEN IT SLIPPED FROM HIS RIGHT HAND AND PINCHED HIS MIDDLE FINGER LEFT HAND GEAR COVER AND FLOOR.COVER WE IGHTS 75 TO 100 LBS.
Ernst Aggregates · Caught in, under or between a moving and a stationary object
LOADING A DC ELECTRIC PANEL APPROX. 2 FT X 2 FT X 6 FT INTO A PICK-UP TRUCK BY HAND THE PANEL SLID AND CRUSHED THE TIP OF LITTLE FINGER ON RIGHT HAND BETWEEN THE TOOL BOX ON THE TRUCK AND THE DC ELECTRIC PANEL, RESULTING IN A SPLINTERED BONE AND 12 STITCHES.
1988 · 3 incidents
December 15, 1988OH · Metal/Non-Metalassayer, geologist, metallurgist, engineer, engineer managementSLIP OR FALL OF PERSON
THE EMPLOYEE WAS CLIMBING UP THE SIDE OF THE CRUSHER. HE LEANED AGAINST A LOOSE BAR AND LOST HIS BALANCE, AND JUMPED 7 FEET TO THE GROUND. THE GROUND WAS FROZEN, AND THE EMPLOYEE LANDED ON THE HEELS OF HIS FEET, BRUISING THEM.
Ernst Aggregates · Caught in, under or between a moving and a stationary object
THE EMPLOYEE WAS UNTHREADING LOCK BOLTS OUT OF THE 4800 CRUSHER. THE BOLT CAME LOOSE CAUSING THE PRY BAR TO OVE QUICKLY, PINCHING HIS FINGER BETWEEN THE CRUSHER AND PRY BAR.
November 2, 1988OH · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDLING OF MATERIALS
EMPLOYEE WAS UNTHREADING A SECTION OF TWO INCH PIPE EMPLOYEE UNDERESTIMATED WEIGHT OF PIPE USING ONE HAND TO HOLD IT PIPE FELL FROM LEFT HAND STRIKING THUMB ON RT.HAND EMPLOYEE BROKE THUMB ON RT.HAND
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