Mining Incidents

Houston Quarry: 72 MSHA citations Metal/Non-Metal

Houston, Texas County, MO  ·  Active
MSHA Mine ID: 2301461

Houston Quarry has $10K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

Watch this mine

Email me when a new MSHA incident is filed at Houston Quarry.

Fatalities
0
Total incidents
10
Years on record
1991–2021
Latest incident
Sep 2021
Compliance record
MSHA citations since 2000
72
citations
15
significant & substantial
$9,527
proposed penalties
$9,527
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
62
inspections on record
830
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: 830 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Houston Quarry has $10K in proposed MSHA penalties and $0 outstanding across 0 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.
$10K
proposed penalties
$10K
current assessed
$10K
paid to date
$0
outstanding
72 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-02.
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.
20.8%
significant & substantial
5.6%
high negligence or reckless
20.8%
reasonably likely or greater
52.8%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 11.1% low, 83.3% moderate, 5.6% high, 0.0% reckless.
Source: MSHA violations gravity and negligence coding, 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: 2025-05-29
0%
of limit-tested samples over the exposure limit
43
samples
17
limit-tested
Most sampled contaminants
  • Respirable dust, <.1mg26
  • Quartz, respirable, >1% Qtz13
  • Nuisance dust, respirable, <1% Qtz4
Show the individual readings (43)
Date Contaminant Concentration Limit Conc / limit Occupation
2025-05-29 Respirable dust, <.1mg 0 Truck Driver
2025-05-29 Respirable dust, <.1mg 0 Cleanup Man
2025-05-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2024-09-25 Respirable dust, <.1mg 0 Truck Driver
2024-09-25 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-03-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-03-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2021-05-25 Respirable dust, <.1mg 0 Truck Driver
2021-05-25 Respirable dust, <.1mg 0 Truck Driver
2016-05-04 Quartz, respirable, >1% Qtz 0.23 1.48 0.16 Front-end Loader Operator
2016-05-04 Respirable dust, <.1mg 0 Truck Driver
2013-11-19 Respirable dust, <.1mg 0 Truck Driver
2013-11-19 Quartz, respirable, >1% Qtz 0.18 0.89 0.20 Crusher Oper/Worker
2013-11-19 Nuisance dust, respirable, <1% Qtz 0.3 10 0.03 Front-end Loader Operator
2010-03-24 Quartz, respirable, >1% Qtz 0.18 1.65 0.11 Truck Driver
2010-03-24 Respirable dust, <.1mg 0 Crusher Oper/Worker
2010-03-24 Quartz, respirable, >1% Qtz 0.14 1.05 0.13 Front-end Loader Operator
2008-07-23 Nuisance dust, respirable, <1% Qtz 0.17 10 0.02 Truck Driver
2008-07-23 Quartz, respirable, >1% Qtz 0.14 1.15 0.12 Drill Operator, Rotary Air
2008-07-23 Respirable dust, <.1mg 0 Laborer, Bullgang
2007-02-21 Quartz, respirable, >1% Qtz 0.18 1.35 0.13 Truck Driver
2007-02-21 Quartz, respirable, >1% Qtz 0.24 0.61 0.39 Crusher Oper/Worker
2006-03-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2006-03-01 Respirable dust, <.1mg 0 Crusher Oper/Worker
2006-03-01 Quartz, respirable, >1% Qtz 0.22 2.12 0.10 Truck Driver
2006-03-01 Nuisance dust, respirable, <1% Qtz 0.33 10 0.03 Truck Driver
2006-03-01 Nuisance dust, respirable, <1% Qtz 0.12 10 0.01 Front-end Loader Operator
2005-07-07 Respirable dust, <.1mg 0 Truck Driver
2005-07-07 Respirable dust, <.1mg 0 Mechanic
2005-07-07 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-07-07 Respirable dust, <.1mg 0 Crusher Oper/Worker
2005-07-07 Quartz, respirable, >1% Qtz 0.16 0.91 0.18 Truck Driver
2004-07-01 Respirable dust, <.1mg 0 Mechanic
2004-07-01 Respirable dust, <.1mg 0 Front-end Loader Operator
2003-07-16 Quartz, respirable, >1% Qtz 0.37 0.49 0.76 Truck Driver
2003-07-16 Quartz, respirable, >1% Qtz 0.28 0.78 0.36 Crusher Oper/Worker
2003-07-16 Quartz, respirable, >1% Qtz 0.48 0.92 0.52 Truck Driver
2003-07-16 Quartz, respirable, >1% Qtz 0.49 0.54 0.91 Front-end Loader Operator
2003-07-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-06-04 Respirable dust, <.1mg 0 Crusher Oper/Worker
2002-06-04 Respirable dust, <.1mg 0 Front-end Loader Operator
2002-06-04 Respirable dust, <.1mg 0 Drill Operator, Rotary Air
2002-06-04 Respirable dust, <.1mg 0 Utility 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.

Houston Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 2019.

Injury rate, 2019
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 1.94 and the all-US-mining average was 2.32 cases per 100 workers.
In Missouri, metal and nonmetal mining averaged 2.57 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
2019 * 0.00 0.00 0.000
2018 * 7.70 7.70 0.000
2017 * 6.90 6.90 0.000
2016 * 0.00 0.00 0.000
2015 * 0.00 0.00 0.000
2014 * 0.00 0.00 0.000
2013 * 0.00 0.00 0.000
2012 * 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. Doss & Harper Stone Company Inc 1950 to 2019
  2. Indian Creek Materials 2019 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 5
2025 6
2024 7
2023 8
2022 7
2021 8
2020 9
2019 12
2018 13
2017 13
2016 12
2015 14
2014 13
2013 12
2012 13
2011 10
2010 12
2009 12
2008 12
2007 10
2006 11
2005 12
2004 12
2003 12
2002 11
2001 11
2000 11
Source: MSHA quarterly employment and production, updated weekly.

Houston Quarry sits in Texas County, Missouri, where the Census mining category is 1.4% 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.
Texas County, Missouri · Population 24,956
1.4%
Mining share of county employment
$48,055
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 3,806 0 0 0.0
2026 Q1 2,698 0 0 0.0
2025 Q4 2,850 1 0 350.9
2025 Q3 3,340 0 0 0.0
2025 Q2 3,614 2 0 553.4
2025 Q1 3,669 1 0 272.6
2024 Q4 2,916 0 0 0.0
2024 Q3 2,526 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 2,393 1 0 417.9
2024 Q1 3,193 0 0 0.0
2023 Q4 3,260 0 0 0.0
2023 Q3 3,628 0 0 0.0
2023 Q2 3,955 1 0 252.8
2023 Q1 3,651 1 0 273.9
2022 Q4 3,245 0 0 0.0
2022 Q3 3,726 3 0 805.2
2022 Q2 4,095 0 0 0.0
2022 Q1 4,170 2 1 479.6
2021 Q4 3,915 0 0 0.0
2021 Q3 3,842 0 0 0.0
2021 Q2 3,301 1 0 302.9
2021 Q1 2,702 1 0 370.1
2020 Q4 2,250 0 0 0.0
2020 Q3 2,124 0 0 0.0
2020 Q2 5,369 0 0 0.0
2020 Q1 4,027 0 0 0.0
2019 Q4 3,272 0 0 0.0
2019 Q3 5,301 0 0 0.0
2019 Q2 7,006 0 0 0.0
2019 Q1 6,701 0 0 0.0
2018 Q4 5,440 3 0 551.5
2018 Q3 6,258 0 0 0.0
2018 Q2 6,788 4 2 589.3
2018 Q1 7,474 0 0 0.0
2017 Q4 7,406 0 0 0.0
2017 Q3 7,475 1 0 133.8
2017 Q2 7,234 5 2 691.2
2017 Q1 6,850 0 0 0.0
2016 Q4 6,246 0 0 0.0
2016 Q3 6,158 0 0 0.0
2016 Q2 5,375 1 0 186.0
2016 Q1 6,237 0 0 0.0
2015 Q4 7,346 0 0 0.0
2015 Q3 6,989 0 0 0.0
2015 Q2 7,216 0 0 0.0
2015 Q1 6,365 0 0 0.0
2014 Q4 5,864 2 0 341.1
2014 Q3 5,254 0 0 0.0
2014 Q2 6,277 0 0 0.0
2014 Q1 5,221 0 0 0.0
2013 Q4 5,484 2 0 364.7
2013 Q3 4,861 0 0 0.0
2013 Q2 5,051 1 1 198.0
2013 Q1 5,535 0 0 0.0
2012 Q4 4,834 0 0 0.0
2012 Q3 5,533 0 0 0.0
2012 Q2 6,729 0 0 0.0
2012 Q1 6,122 0 0 0.0
2011 Q4 0 0 0
2011 Q3 8,211 0 0 0.0
2011 Q2 6,686 0 0 0.0
2011 Q1 4,998 1 0 200.1
2010 Q4 5,765 0 0 0.0
2010 Q3 5,838 0 0 0.0
2010 Q2 6,308 0 0 0.0
2010 Q1 4,816 4 2 830.6
2009 Q4 6,151 0 0 0.0
2009 Q3 6,629 0 0 0.0
2009 Q2 7,103 3 0 422.4
2009 Q1 5,727 0 0 0.0
2008 Q4 6,408 1 0 156.1
2008 Q3 8,076 0 0 0.0
2008 Q2 7,219 0 0 0.0
2008 Q1 5,368 2 0 372.6
2007 Q4 5,140 0 0 0.0
2007 Q3 6,017 0 0 0.0
2007 Q2 6,729 1 0 148.6
2007 Q1 5,364 1 0 186.4
2006 Q4 6,045 0 0 0.0
2006 Q3 5,724 1 0 174.7
2006 Q2 5,884 0 0 0.0
2006 Q1 5,748 5 3 869.9
2005 Q4 5,363 0 0 0.0
2005 Q3 6,439 0 0 0.0
2005 Q2 6,777 0 0 0.0
2005 Q1 5,899 1 0 169.5
2004 Q4 6,903 0 0 0.0
2004 Q3 6,865 6 2 874.0
2004 Q2 7,221 0 0 0.0
2004 Q1 6,130 0 0 0.0
2003 Q4 7,876 1 0 127.0
2003 Q3 7,635 3 1 392.9
2003 Q2 6,392 0 0 0.0
2003 Q1 5,299 2 0 377.4
2002 Q4 5,997 0 0 0.0
2002 Q3 6,510 0 0 0.0
2002 Q2 6,198 1 0 161.3
2002 Q1 4,719 0 0 0.0
2001 Q4 4,127 0 0 0.0
2001 Q3 4,846 0 0 0.0
2001 Q2 5,546 0 0 0.0
2001 Q1 4,578 0 0 0.0
2000 Q4 3,747 0 0 0.0
2000 Q3 5,275 0 0 0.0
2000 Q2 6,033 1 0 165.8
2000 Q1 6,049 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

10 on file

2021 · 1 incident

September 10, 2021 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Indian Creek Materials · Caught in, under or between a moving and a stationary object

Employee was picking up a boulder to widen the path for a haul truck to access the crusher hopper. After picking up the boulder, employee hit finger on the haul truck and busted finger open.

2020 · 1 incident

March 4, 2020 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator STEPPING OR KNEELING ON OBJECT
Indian Creek Materials · Struck against stationary object

Employee was stepping off the ladder of the loader and rolled ankle on a rock.

2018 · 1 incident

April 10, 2018 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
Doss & Harper Stone Company Inc · Struck by flying object

Moving large rock with loader & log chain. Chain broke hitting man in knee

2017 · 1 incident

March 28, 2017 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Doss & Harper Stone Company Inc · Caught in, under or between running or meshing objects

Employee was replacing adhesive belt lagging on conveyor head. Pulley caught arm and pulled employee. Injury was right side of face and right arm.

2010 · 1 incident

November 15, 2010 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Doss & Harper Stone Company Inc · Struck by falling object

EE was tightening bolt, the bolt broke and the EE dropped the wrench on his hand.

2002 · 1 incident

June 21, 2002 MO · Metal/Non-Metal truck driver MACHINERY
Doss & Harper Stone Company Inc · Struck by falling object

WAS HIT IN FACE WITH FLY ROCK UNDER RIGHT EYE SMALL CUT ON FACE COMPLAINED OF EYE DISCOMFORT WENT TO DOCTOR.

1995 · 1 incident

March 27, 1995 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Doss & Harper Stone Company Inc · Fall onto or against objects

WRENCH SLIPPED OFF BOLT ON PLANT CAUSING EMPLOYEE TO FALL BACK ON BRACE POLE ON PLANT BUILDING. EMPLOYEE STATED THIS IS A REOCCURRANCE OF ACCIDENT A YEAR AGO. REPORTED TO ME ON 3-27-95 WASN'T REPORTABLE UNTIL 5-5-95.

1994 · 1 incident

March 3, 1994 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Doss & Harper Stone Company Inc · Over-exertion (Not Elsewhere Classified)

LOADER OPERATOR STEPPED OFF LAST STEP OF LOADER ON TO GROUND LEVEL AND TWISTED KNEE. OPERATOR REPORTED ACCIDENT TO SUPERVISOR BUT FELT HE DIDN'T NEED MEDICAL ATTENTION BUT SIX WEEKS LATER DECI DED HE NEEDED TO BE SEEN BY A DOCTOR. SAW DOCTOR 3-29-94.

1993 · 1 incident

September 13, 1993 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Doss & Harper Stone Company Inc · Over-exertion (Not Elsewhere Classified)

INJURED HAD UNLOADED 50# ANFO BAGS FROM AUSTIN TRUCK INTO TRAILER. FINISHED WAS GETTING OUT OF TRAILER ONTO TRUCK, SLIPPED ON WET TRAILER, STARTED TO FALL, CAUGHT HIMSELF BY HIS RIGHT HAND ON SIDE OF TRAILER.

1991 · 1 incident

August 14, 1991 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Doss & Harper Stone Company Inc · Caught in, under or between two or more moving objects

ACCIDENT HAPPENED WHEN LOADER OPERATOR TRIED MOVE FEED CONVEYOR BY HAND AFTER ORDER HAD BEEN GIVEN TO CRUSHER OPERATOR TO ENERGISE PLANT & MOVE CONVEYOR WITH MOTOR DRIVE NOT KNOWING LOADER OPE RATOR WAS IN AREA OF BELT. CAUSING TWO FINGERS ON LEFT HAND TO BE CUT IN DRIVE BELT.