Hillsboro Quarry and Mill has $27K in proposed MSHA penalties and $611 outstanding across 4 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
12
Years on record
1983–2011
Latest incident
Oct 2011
Compliance record
MSHA citations since 2000
136
citations
38
significant & substantial
$26,596
proposed penalties
$23,996
paid to date
90% of proposed penalties paid to date, a $2,600 gap.
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.
136 citations across 1,202 inspection hours.
Source: MSHA inspections data, updated weekly.
Hillsboro Quarry and Mill has $27K in proposed MSHA penalties and $611 outstanding across 4 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.
$27K
proposed penalties
$25K
current assessed
$24K
paid to date
$611
outstanding
135 assessments are final orders; 4 contested dockets.
Of $5K in penalties contested before the Commission, $3K was upheld in final decisions.
As of the most recent assessment on 2026-04-21.
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.
11citations taken to the federal commission · 8% of citations on record
Settled
11 · 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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
44%
Penalty reduction in decided contests
$5K proposed, $3K 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 2018-05-06.
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: 2025-02-26
2%
of limit-tested samples over the exposure limit
60
samples
42
limit-tested
Most sampled contaminants
Quartz, respirable, >1% Qtz41 over
Nuisance dust, respirable, <1% Qtz15
Respirable dust, <.1mg15
Aluminum oxide fumes2
Show the individual readings (60)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2009-05-18
Quartz, respirable, >1% Qtz
4.01
3.29
1.22
Crusher Oper/Worker
2025-02-26
Respirable dust, <.1mg
0
Front-end Loader Operator
2023-09-13
Respirable dust, <.1mg
0
Front-end Loader Operator
2023-09-13
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Mechanic
2023-09-13
Quartz, respirable, >1% Qtz
0.31
Cleanup Man
2019-05-30
Respirable dust, <.1mg
0
Front-end Loader Operator
2019-05-30
Respirable dust, <.1mg
0
Crusher Oper/Worker
2019-05-30
Respirable dust, <.1mg
0
Truck Driver
2019-05-30
Unlisted Particulate, respirable, <1% Qtz
0.54
Truck Driver
2014-10-29
Nuisance dust, respirable, <1% Qtz
0.68
10
0.07
Cleanup Man
2014-10-29
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-03-06
Unlisted Particulate, respirable, <1% Qtz
0.47
Crusher Oper/Worker
2011-08-04
Respirable dust, <.1mg
0
Crusher Oper/Worker
2011-08-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2009-07-07
Nuisance dust, respirable, <1% Qtz
0.32
10
0.03
Crusher Oper/Worker
2009-05-18
Nuisance dust, respirable, <1% Qtz
0.61
10
0.06
Utility Man
2009-05-18
Nuisance dust, respirable, <1% Qtz
0.46
10
0.05
Utility Man
2009-05-18
Nuisance dust, respirable, <1% Qtz
1.5
10
0.15
Drill Operator, Rotary
2006-12-12
Quartz, respirable, >1% Qtz
0.49
3.07
0.16
Drill Operator, Jumbo Perc.
2005-06-22
Nuisance dust, respirable, <1% Qtz
0.43
10
0.04
Truck Driver
2005-06-22
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Truck Driver
2005-06-22
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-06-22
Respirable dust, <.1mg
0
Front-end Loader Operator
2005-06-22
Nuisance dust, respirable, <1% Qtz
1.54
10
0.15
Crusher Oper/Worker
2004-02-04
Nuisance dust, respirable, <1% Qtz
3.45
10
0.35
Crusher Oper/Worker
2004-02-04
Nuisance dust, respirable, <1% Qtz
0.37
10
0.04
Laborer, Bullgang
2004-02-04
Respirable dust, <.1mg
0
Truck Driver
2004-02-04
Respirable dust, <.1mg
0
Front-end Loader Operator
2004-02-04
Nuisance dust, respirable, <1% Qtz
0.14
10
0.01
Truck Driver
2003-09-18
Nuisance dust, respirable, <1% Qtz
0.13
10
0.01
Truck Driver
2003-09-18
Respirable dust, <.1mg
0
Bulldozer Operator
2002-05-16
Respirable dust, <.1mg
0
Truck Driver
2002-05-16
Nuisance dust, respirable, <1% Qtz
0.71
10
0.07
Front-end Loader Operator
2002-05-16
Quartz, respirable, >1% Qtz
0.85
2.17
0.39
Crusher Oper/Worker
2002-05-16
Respirable dust, <.1mg
0
Front-end Loader Operator
2002-05-16
Nuisance dust, respirable, <1% Qtz
0.45
10
0.05
Crusher Oper/Worker
2000-11-27
Beryllium fumes
0
2
0.00
Welder, etc.
2000-11-27
Arsenic fumes
0
500
0.00
Welder, etc.
2000-11-27
Zinc oxide fumes
0
5
0.00
Welder, etc.
2000-11-27
Vanadium fumes
0
50
0.00
Welder, etc.
2000-11-27
Titanium dioxide fumes
0
10
0.00
Welder, etc.
2000-11-27
Nickel fumes
0.01
1
0.01
Welder, etc.
2000-11-27
Molybdenum fumes
0
10
0.00
Welder, etc.
2000-11-27
Manganese fumes
0.1
5
0.02
Welder, etc.
2000-11-27
Aluminum oxide fumes
0
10
0.00
Welder, etc.
2000-11-27
Lead fumes
0
150
0.00
Welder, etc.
2000-11-27
Cobalt fumes
0
100
0.00
Welder, etc.
2000-11-27
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2000-08-15
Lead fumes
0
150
0.00
Welder, etc.
2000-08-15
Cadmium oxide fumes
0
100
0.00
Welder, etc.
2000-08-15
Beryllium fumes
0
2
0.00
Welder, etc.
2000-08-15
Arsenic fumes
0
500
0.00
Welder, etc.
2000-08-15
Zinc oxide fumes
0
5
0.00
Welder, etc.
2000-08-15
Vanadium fumes
0
50
0.00
Welder, etc.
2000-08-15
Titanium dioxide fumes
0.51
20
0.03
Welder, etc.
2000-08-15
Nickel fumes
1.45
3
0.48
Welder, etc.
2000-08-15
Aluminum oxide fumes
0.09
20
0.00
Welder, etc.
2000-08-15
Molybdenum fumes
0
10
0.00
Welder, etc.
2000-08-15
Magnesium oxide fumes
0.35
20
0.02
Welder, etc.
2000-08-15
Cobalt fumes
0
100
0.00
Welder, etc.
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.
Hillsboro Quarry and Mill 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
No reportable injury cases in any year shown. Employee-hours were reported in each of those years, so these are true zeros rather than missing data. Citations, listed in the compliance record above, are inspector-found violations and are counted separately from worker injuries.
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 Tennessee, metal and nonmetal mining averaged 1.25 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 *
0.00
0.00
0.000
2023 *
0.00
0.00
0.000
2022 *
0.00
0.00
0.000
2021 *
0.00
0.00
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.
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year
Employees
2026
14
2025
11
2024
13
2023
12
2022
10
2021
11
2020
9
2019
11
2018
9
2017
10
2016
8
2015
8
2014
11
2013
8
2012
7
2011
8
2010
15
2009
12
2008
13
2007
23
2006
9
2005
9
2004
10
2003
8
2002
9
2001
10
2000
9
Source: MSHA quarterly employment and production, updated weekly.
Hillsboro Quarry and Mill sits in Coffee County, Tennessee, 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.
Coffee County, Tennessee · Population 58,940
0.1%
Mining share of county employment
$60,656
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
Employee stated his hip began to go numb and his leg also. He told the track hoe operator that he needed to park the truck and seek medical attention. Employee was taken to a walk-in clinic by another employee. The employee was driving haul truck at the time the employee told track hoe operator.
2008 · 1 incident
June 18, 2008TN · Metal/Non-Metalclerk, timekeeper, office worker, director of salesHANDLING OF MATERIALS
An employee with 18 months experience was hauling shot rock to crusher. He came around right handed curve got off left shoulder, over corrected causing truck to turn over. Employee's left elbow cut and scratched. Employee was transported to hospital where he received 7 stitches to left arm. X-rays revealed bruised left shoulder and arm.
August 12, 2005TN · Metal/Non-Metalhaul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driverHANDLING OF MATERIALS
At approximately 3:30PM on Friday, August 12th, 2005 an employee with twenty years mining experience cut the first finger on his right hand. Employee was attempting to change a parking light in CAT 769 haul truck. While doing so the new bulb burst in employee's fingers causing the cut. Employee received five stitches.
2004 · 1 incident
May 13, 2004TN · Metal/Non-Metallaborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitmanHANDTOOLS (NONPOWERED)
WELDER WAS COMPLETING BUILDING HAMMERS IN IMPACK CRUSHER AND STARTED TO COME OUT AND QUIT HE CAME OUT OF THE IMPAC INTO THE RIB FEEDER FLOOR AND STARTED TO CLIMB UP TO THE WALK WAY WHEN HE SLI PPED AND FELL BACK AGAINST THE OTHER SIDE OF THEFEEDER HOPPER SITTING DOWN AND HURTING HIS TAILBONE.
ANOTHER EMPLOYEE AND INJURED WERE MOVING TORCH CARRIER TOOK BOBCAT TO MOVE IT,INJURED HAD BOTH HANDS ON CARRIER IT JERKED.WHEN IT DID JERKED HIS NECK.
1990 · 1 incident
April 25, 1990TN · Metal/Non-Metalwarehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operatorHANDTOOLS (NONPOWERED)
Rogers Group Inc · Over-exertion in wielding or throwing objects
CLEANING OUT LIME BIN WITH SLEDGE HAMMER AND REP 4-3-90 BACK HURTING AND WENT TO DR
1986 · 1 incident
August 5, 1986TN · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDLING OF MATERIALS
EMPLOYEE WAS TRYING TO TIGHTEN A CASTLE HEAD NUT WITH A BAR THE BAR SLIPPED AND THE EMPLOYEES FINGERS HIT FINGER GEAR ON PORTABLE CRUSHER RESULTED IN SMALL LACERATION OVER DORSAL SURFACE OF THIRD DIGIT OF THE LEFT HAND BETWEEN THE FIRST AND SECOND JOINTS SMALL LACERATION OF FOURTH DIGIT SUTURED THIRD DIGIT