Chattanooga Quarry has $33K in proposed MSHA penalties and $121 outstanding across 4 contested dockets, plus health sampling and the full incident record.
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Fatalities
0
Total incidents
16
Years on record
2000–2026
Latest incident
Apr 2026
Compliance record
MSHA citations since 2000
112
citations
30
significant & substantial
$33,462
proposed penalties
$29,841
paid to date
89% of proposed penalties paid to date, a $3,621 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.
112 citations across 1,634 inspection hours.
Source: MSHA inspections data, updated weekly.
Chattanooga Quarry has $33K in proposed MSHA penalties and $121 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.
$33K
proposed penalties
$30K
current assessed
$30K
paid to date
$121
outstanding
107 assessments are final orders; 4 contested dockets.
Of $18K in penalties contested before the Commission, $14K was upheld in final decisions.
As of the most recent assessment on 2024-01-04.
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.
4citations taken to the federal commission · 4% of citations on record
Settled
2 · 50%
Stood as issued
1 · 25%
Vacated or withdrawn
1 · 25%
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 Vacated and withdrawn citations, and settlements that removed the designation, count against.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%
20%
Penalty reduction in decided contests
$18K proposed, $14K 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 2014-06-19.
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: 2024-03-27
0%
of limit-tested samples over the exposure limit
27
samples
12
limit-tested
Most sampled contaminants
Respirable dust, <.1mg12
Quartz, respirable, >1% Qtz11
Nuisance dust, respirable, <1% Qtz2
Unlisted Particulate, respirable, <1% Qtz2
Show the individual readings (27)
Date
Contaminant
Concentration
Limit
Conc / limit
Occupation
2024-03-27
Quartz, respirable, >1% Qtz
0.16
Backhoe Operator
2024-03-27
Respirable dust, <.1mg
0
Truck Driver
2024-03-27
Respirable dust, <.1mg
0
Crusher Oper/Worker
2021-02-09
Respirable dust, <.1mg
0
Rotary Bucket Ex. Operator
2021-02-09
Unlisted Particulate, respirable, <1% Qtz
0.19
Dry Screen Plant Operator
2021-02-09
Unlisted Particulate, respirable, <1% Qtz
0.83
Crusher Oper/Worker
2021-02-09
Respirable dust, <.1mg
0
Truck Driver
2016-11-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2016-11-01
Respirable dust, <.1mg
0
Truck Driver
2016-11-01
Respirable dust, <.1mg
0
Front-end Loader Operator
2012-06-27
Respirable dust, <.1mg
0.06
Drill Operator, Rotary
2011-01-06
Respirable dust, <.1mg
0
Utility Man
2011-01-06
Respirable dust, <.1mg
0
Front-end Loader Operator
2006-12-14
Quartz, respirable, >1% Qtz
0.15
0.94
0.16
Utility Man
2006-03-30
Quartz, respirable, >1% Qtz
0.38
1.72
0.22
Utility Man
2006-03-30
Quartz, respirable, >1% Qtz
0.16
0.59
0.27
Crusher Oper/Worker
2004-12-22
Respirable dust, <.1mg
0
Crusher Oper/Worker
2004-12-22
Respirable dust, <.1mg
0
Utility Man
2004-12-22
Quartz, respirable, >1% Qtz
0.26
0.73
0.36
Dry Screen Plant Operator
2004-05-06
Quartz, respirable, >1% Qtz
0.29
2.02
0.14
Dry Screen Plant Operator
2004-05-06
Quartz, respirable, >1% Qtz
0.18
1.26
0.14
Building Repair/Maint.
2004-05-06
Quartz, respirable, >1% Qtz
0.25
0.86
0.29
Crusher Oper/Worker
2003-01-15
Quartz, respirable, >1% Qtz
0.12
1.48
0.08
Crusher Oper/Worker
2003-01-15
Quartz, respirable, >1% Qtz
0.57
1.29
0.44
Truck Driver
2002-05-02
Nuisance dust, respirable, <1% Qtz
0.25
10
0.03
Dry Screen Plant Operator
2002-05-02
Nuisance dust, respirable, <1% Qtz
0.19
10
0.02
Crusher Oper/Worker
2002-05-02
Quartz, respirable, >1% Qtz
0.12
1.04
0.12
Cleanup Man
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.
Chattanooga Quarry 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
15
2025
14
2024
13
2023
13
2022
14
2021
15
2020
16
2019
15
2018
14
2017
13
2016
12
2015
12
2014
12
2013
14
2012
14
2011
13
2010
16
2009
17
2008
17
2007
17
2006
20
2005
19
2004
17
2003
15
2002
18
2001
15
2000
5
Source: MSHA quarterly employment and production, updated weekly.
Chattanooga Quarry sits in Hamilton 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.
Hamilton County, Tennessee · Population 370,913
0.1%
Mining share of county employment
$72,568
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 felt a pop in left knee when mounting water truck. Employee has had a previous knee injury. Not determined until May 6th that this was a new injury and not a reoccurrence.
The employee was helping the mechanic to replace the idler on the Komatsu PC220 trackhoe. They were using a hammer to hit a chisel into a slot to help the shaft slide into place. The chisel unexpectedly popped out of the slot and came back and hit the employee in EE's open mouth, injuring two of EE's teeth.
Operator was hauling a load of spoil material to the dump area, drove into a hole and right leg contacted the bottom edge of dash resulting in a small laceration just below the knee about 1/2 inch long requiring one stitch. Employee was treated and given a return to work release.
2013 · 1 incident
June 17, 2013TN · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techHANDTOOLS (NONPOWERED)
While exiting WA500 loader, employee slipped off and fell to ground below. Landed on left foot and left hand. Employee was standing on top step of ladder and had lunch box in left hand holding handrail. When employee closed the door he reached to grab hand rail with right hand and missed, lost his balance and fell to the ground.
Employee was entering the Chattanooga scale house when her foot slipped off of step and she lost her balance and fell on stairs, breaking her fall with her left arm. Employee's toe caught the end of the step causing her to trip. She has fractured her left arm.
2006 · 1 incident
February 8, 2006TN · Metal/Non-Metalquality control technician, laboratory technician, laboratory assistantHANDTOOLS (NONPOWERED)
Employee was using a sledgehammer to dislodge material built up in PEP Screen chute, left index finger was struck between hammer handle and chute shattering the bone in the tip of his finger.
2005 · 3 incidents
August 4, 2005TN · Metal/Non-Metalmaintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service techSLIP OR FALL OF PERSON
Employee was performing the daily servicing tasks (fueling & greasing) on the Kamatsu PC 750 excavator located in the bottom of the pit. While exiting the machine employee lost his footing and fell approximately 3 feet to the ground.
April 6, 2005TN · Metal/Non-Metalblaster, shooter, shotfirer, explosive worker, powder gang/monkeySLIP OR FALL OF PERSON
EE WAS USING A ROD TO PRY A ROCK FROM BEHIND WHEEL ON SCREEN CHUTE, THE BAR SLIPPED AND HIS HAND HIT A PIECE OF ANGLE IRON SUPPORT ON THE CHUTE. LITTLE FINGER OF RIGHT HAND WAS LACERATEC CAUSING HIM TO RECIEVE TWO STITCHES.
EMPLOYEE WAS DRIVING 769 OUT OF PIT. TRUCK BEGAN TO SMOKE AND THEN ENGINE STALLED. TRUCK ROLLED DOWN HILL, STEERED INTO HIGHWALL AND IT ROLLED OVER. EMPLOYEE WAS NOT INJURED. TRUCK CAUGHT ON F IRE, TRUCK TOTALED.
AT THE ENDING OF THE DAY WHILE GATHERING TOOLS, EE WAS STANDING ON A CONCRETE FOUNDATION AT THE SECONDARY CRUSHER WHICH WAS APPROX 14" HIGHER THAN THE GROUND ELEVATION AND LOST HIS BALANCE STE PPING BACKWARDS ONTO UNEVEN GROUND LANDING HEEL FIRST.
2000 · 1 incident
August 23, 2000TN · Metal/Non-Metalfront-end loader, scraper-loader operator, pan operator, payloader, scraper rig operatorHANDTOOLS (NONPOWERED)
EE WAS PULLING ON PRYBAR TO TIGHTEN V-BELTS ON CRUSHER. BAR SLIPPED STRIKING EE IN NOSE. EE REPORTED HE WAS ALRIGHT AND CONTINUED TO WORK. DID NOT MISS ANY WORK. EE CONTACTED PLANT MANAGER AT HOME 8-27 TO REPORT HE HAD BEEN HURTING AND WENT TO DOCTOR. DOCTOR SAID HIS NOSE WAS BROKEN.
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