Mining Incidents

Auxvasse South Quarry Metal/Non-Metal

Auxvasse, Callaway County, MO  ·  Active
MSHA Mine ID: 2302009

Auxvasse South Quarry has $76K in proposed MSHA penalties and $1K outstanding across 13 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
48
Years on record
1990–2022
Latest incident
Jun 2022
Compliance record
MSHA citations since 2001
213
citations
47
significant & substantial
$76,442
proposed penalties
$45,562
paid to date
60% of proposed penalties paid to date, a $30,880 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
93
inspections on record
1,435
inspection hours
14.8
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.
213 citations across 1,435 inspection hours.
Source: MSHA inspections data, updated weekly.

Auxvasse South Quarry has $76K in proposed MSHA penalties and $1K outstanding across 13 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.
$76K
proposed penalties
$47K
current assessed
$46K
paid to date
$1K
outstanding
208 assessments are final orders; 13 contested dockets.
As of the most recent assessment on 2026-05-12.
Source: MSHA assessed-violations and conference/litigation data, updated weekly.
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
2025 Q4 9,734 0 0 0.0
2025 Q3 8,894 0 0 0.0
2025 Q2 9,770 2 0 204.7
2025 Q1 8,667 1 0 115.4
2024 Q4 10,297 0 0 0.0
2024 Q3 10,159 0 0 0.0
2024 Q2 9,961 2 0 200.8
2024 Q1 9,942 1 0 100.6
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 9,860 0 0 0.0
2023 Q3 10,839 0 0 0.0
2023 Q2 9,719 0 0 0.0
2023 Q1 10,154 0 0 0.0
2022 Q4 11,264 3 0 266.3
2022 Q3 11,577 0 0 0.0
2022 Q2 10,706 0 0 0.0
2022 Q1 8,228 4 1 486.1
2021 Q4 9,243 0 0 0.0
2021 Q3 10,029 0 0 0.0
2021 Q2 6,459 1 0 154.8
2021 Q1 5,929 3 0 506.0
2020 Q4 9,846 0 0 0.0
2020 Q3 9,982 2 0 200.4
2020 Q2 9,366 0 0 0.0
2020 Q1 10,740 4 1 372.4
2019 Q4 8,313 0 0 0.0
2019 Q3 12,631 0 0 0.0
2019 Q2 10,945 7 3 639.6
2019 Q1 8,909 4 1 449.0
2018 Q4 11,336 0 0 0.0
2018 Q3 14,233 0 0 0.0
2018 Q2 14,465 2 0 138.3
2018 Q1 8,779 0 0 0.0
2017 Q4 15,052 1 0 66.4
2017 Q3 16,466 6 4 364.4
2017 Q2 18,952 0 0 0.0
2017 Q1 19,378 4 2 206.4
2016 Q4 18,100 0 0 0.0
2016 Q3 17,836 1 0 56.1
2016 Q2 16,293 0 0 0.0
2016 Q1 15,202 4 0 263.1
2015 Q4 15,658 0 0 0.0
2015 Q3 15,606 0 0 0.0
2015 Q2 17,487 6 0 343.1
2015 Q1 14,052 0 0 0.0
2014 Q4 14,051 3 0 213.5
2014 Q3 15,194 3 0 197.4
2014 Q2 16,016 0 0 0.0
2014 Q1 15,938 3 1 188.2
2013 Q4 11,685 0 0 0.0
2013 Q3 12,783 0 0 0.0
2013 Q2 15,983 0 0 0.0
2013 Q1 16,685 2 1 119.9
2012 Q4 13,696 0 0 0.0
2012 Q3 12,006 0 0 0.0
2012 Q2 11,878 7 2 589.3
2012 Q1 12,873 0 0 0.0
2011 Q4 10,869 0 0 0.0
2011 Q3 11,043 0 0 0.0
2011 Q2 12,829 0 0 0.0
2011 Q1 13,857 3 1 216.5
2010 Q4 12,304 0 0 0.0
2010 Q3 14,915 0 0 0.0
2010 Q2 15,583 10 3 641.7
2010 Q1 15,128 0 0 0.0
2009 Q4 17,465 6 1 343.5
2009 Q3 14,905 3 3 201.3
2009 Q2 12,772 14 3 1096.1
2009 Q1 13,411 13 5 969.4
2008 Q4 15,448 0 0 0.0
2008 Q3 11,630 0 0 0.0
2008 Q2 12,577 5 0 397.6
2008 Q1 13,088 0 0 0.0
2007 Q4 14,581 7 0 480.1
2007 Q3 11,447 1 0 87.4
2007 Q2 11,823 0 0 0.0
2007 Q1 11,663 6 3 514.4
2006 Q4 7,481 0 0 0.0
2006 Q3 10,681 6 2 561.7
2006 Q2 11,007 10 0 908.5
2006 Q1 12,713 7 0 550.6
2005 Q4 13,717 0 0 0.0
2005 Q3 15,013 0 0 0.0
2005 Q2 17,570 6 2 341.5
2005 Q1 16,779 0 0 0.0
2004 Q4 16,379 7 0 427.4
2004 Q3 14,499 0 0 0.0
2004 Q2 14,114 4 2 283.4
2004 Q1 11,870 4 0 337.0
2003 Q4 10,686 0 0 0.0
2003 Q3 19,351 8 2 413.4
2003 Q2 21,000 0 0 0.0
2003 Q1 13,831 2 0 144.6
2002 Q4 10,471 0 0 0.0
2002 Q3 17,718 2 2 112.9
2002 Q2 14,609 7 1 479.2
2002 Q1 8,090 0 0 0.0
2001 Q4 10,684 0 0 0.0
2001 Q3 8,798 0 0 0.0
2001 Q2 9,988 1 1 100.1
2001 Q1 7,904 0 0 0.0
2000 Q4 7,385 0 0 0.0
2000 Q3 10,824 0 0 0.0
2000 Q2 10,215 0 0 0.0
2000 Q1 10,572 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

48 on file

2022 · 1 incident

June 24, 2022 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Con-Agg Companies, LLC · Struck by falling object

While changing a wear liner on the T-400 crusher, EE was struck in the arm by a wear plate that took an unexpected fall during removal.

2021 · 1 incident

November 19, 2021 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Con-Agg Companies, LLC · Over-exertion in lifting objects

While scooping a bucket of stemming rock EE's knee bent a little sideways and gave out and made a loud pop. EE sprained EE's right knee.

2017 · 2 incidents

September 21, 2017 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mertens Construction Company, Inc · Caught in, under or between a moving and a stationary object

Employee moving steel, pinched middle ring finger. Bruised finger and resulted in blood build up behind nail. Middle ring finger subungual hematoma was drained (blood drained from under finger nail), three day work restriction.

June 21, 2017 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Mertens Construction Company, Inc · Caught in, under or between a moving and a stationary object

Prepping plant for production. Released a discharge gate and caught hand in gate. Cut/Abrasion to hand resulting in 3 stitches.

2016 · 2 incidents

November 1, 2016 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Mertens Construction Company, Inc · Struck by flying object

Helping grind and something (dust or irritant) got behind safety equipment and irritated eye. Classified as Right eye irritation/abrasion.

October 27, 2016 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

Employee removing drain plug from machine, leveraged self for additional force and bruised right chest rib. Diagnoses was Right Chest Contusion.

2014 · 2 incidents

February 19, 2014 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mertens Construction Company, Inc · Struck against stationary object

Brushed hand on excavator track and cut right 4th finger on chert or track pad. 4 sutures

2011 · 4 incidents

December 23, 2011 MO · Metal/Non-Metal ledgeman/hand, quarry man HANDTOOLS (NONPOWERED)
Mertens Construction Company, Inc · Fall to the walkway or working surface

Repairing conveyor belt, cranking on ratchet hoist, hoist failed, EE lost balance and fell backwards landing on tailbone and right hand.

May 6, 2011 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Mertens Construction Company, Inc · Caught in, under or between a moving and a stationary object

Exiting dump truck, wind gust blew door and struck hand.

March 31, 2011 MO · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Mertens Construction Company, Inc · Caught in, under or between (Not Elsewhere Classified)

EE pinched his hand in the door resulting in a laceration.

2010 · 1 incident

August 10, 2010 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Mertens Construction Company, Inc · Bodily reaction, (Not Elsewhere Classified)

Employee aggravated pre-existing knee injury (hockey injury). When applying pressure to raise up, knee popped.

2009 · 3 incidents

November 3, 2009 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Mertens Construction Company, Inc · Caught in, under or between a moving and a stationary object

Moving steel plate, plate slipped and pinched end of finger, resulting in rupture of skin approx. 1/4".

2008 · 2 incidents

October 23, 2008 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Mertens Construction Company, Inc · Over-exertion (Not Elsewhere Classified)

Reparing primary crusher, strained back while lifting part/componet.

January 30, 2008 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Mertens Construction Company, Inc · Caught in, under or between running or meshing objects

Employee working on conveyor belt, hand pinched in v-belt drive.

2006 · 2 incidents

November 29, 2006 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

Picking up shims to a water pump during repair, shim cut left ring finger.

2005 · 2 incidents

August 3, 2005 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mertens Construction Company, Inc · Over-exertion in lifting objects

EMPLOYEE ATTEMPTED TO LIFT STEEL DOOR TO INSTALL ON CRUSHER AND STRAINED BACK. NOTIFIED OF ACCIDENT / STRAIN ON 8/11/05.

June 14, 2005 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

Employee was cutting flashing with box cutter. It slipped and cut right hand.

2004 · 2 incidents

November 9, 2004 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS ASSISTING WITH THE CUTTING OF TIMBERS, ONE TIMBER SHIFTED & MOVED WHILE RELOCATING ANOTHER TIMBER, EE'S ARM WAS STRUCK & BROKE.

October 19, 2004 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

Employee using a grinder, slipped and cut left leg (thigh).

2003 · 1 incident

March 26, 2003 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

EE WAS USING A PIPE TO EXTEND A WRENCH, WRENCH EXTENSION BROKE, PIPE STRUCK TOE.

2002 · 2 incidents

2001 · 3 incidents

1999 · 2 incidents

April 2, 1999 MO · Metal/Non-Metal ledgeman/hand, quarry man POWERED HAULAGE
Mertens Construction Company, Inc · Struck against a moving object

EMPLOYEE WAS DRIVING A STOCKPILE TRUCK AND ATTEMPTED TO CLIMB A GRADE IN TOO HIGH GEAR. THE TRUCK DIED & HE LOST HIS BRAKES.

1998 · 3 incidents

October 1, 1998 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator POWERED HAULAGE
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

EE WAS TRIPPING TAILGATE ON DRUMP TRUCK AND LEVER CAME DOWN AND BUSTED HIS UPPER LIP OPERA.

June 3, 1998 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator OTHER
Mertens Construction Company, Inc · Bodily reaction, (Not Elsewhere Classified)

EE WAS STANDING LOOKING INTO THE DUMP BED AT THESTOCKPILE TRUCK WITH ARMS OUTSTRETCHED, HE FELT SOMETHING GIVE IN HIS RIGHT SHOULDER

January 9, 1998 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Mertens Construction Company, Inc · Over-exertion (Not Elsewhere Classified)

EE WAS HELPING CLEAN THE SCREENS ON CRUSHER AS HE STEPPED AWAY FROM THE WORK AREA HE TWISTED HIS LEFT KNEE.

1997 · 2 incidents

December 12, 1997 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mertens Construction Company, Inc · Absorption of radiations, caustics, toxic and noxious substances

EMPLOYEE WAS HELPING TO CHANGE THE FLASHING ON THE DOUBLE IMPELLER WHEN HE NOTICED HE HAD BROKEN OUT IN A RASH. SUPERVISOR TOLD HIM TO GO HOME-HE WEN THOME TOOK A SHOWER & WENT ON TO THE HOSPI TAL FOR TREATMENT.THE GENERAL CAUSE OF THE RASH WAS UNDETERMINED UPON TREATMENT FROM THE EMERGENCY ROOM.

November 21, 1997 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Mertens Construction Company, Inc · Struck against stationary object

EMPLOYEE WAS REMOVING COVER FROM SPOUT ON A BARRWELL FOR MAINTENANCE. HIS FINGER SLIPED ACROSS THE ALUMINUM COVER AND CUT IT.

1996 · 1 incident

November 7, 1996 MO · Metal/Non-Metal mine manager, mine foreman, mine owner HANDTOOLS (NONPOWERED)
Mertens Construction Company, Inc · Struck by... (Not Elsewhere Classified)

EE WAS USING AN EXPLOSIVES STAINLESS STEEL KNIFE TO OPEN A CASE OF EXPLOSIVES. THE KNIFE SLIPPED AND CAUSED A SMALL PUNCTURE WOUND ON HIS LEFT LEG.

1995 · 2 incidents

June 26, 1995 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Mertens Construction Company, Inc · Struck against a moving object

THHE CARELESSNESS OF ONE EMPLOYEE, HE BACKED HIS EUCLID INTO THE EMPLOYEE INJURED, (AGAINST THE DRIVERS DOOR) THE CARELESS EMPLOYEE WAS TERMINATED.

January 5, 1995 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Mertens Construction Company, Inc · Flash burns (welding)

EMPLOYEE WAS HOLDING STEEL THAT WAS BEING WELDED& GOT BURNS FROM FLASH OF WELDER.

1994 · 2 incidents

December 13, 1994 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Mertens Construction Company, Inc · Struck against stationary object

EMPLOYEE WAS SWINGING A HAMMER - THE EMPLOYEE LIFTED THE HAMMER OVERHEAD WITHOUT CHECKING CLEARANCE & STRUCK HIS HAND ON A CROSSMEMBER.

May 17, 1994 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mertens Construction Company, Inc · Over-exertion in lifting objects

EMPLOYEE PICKED UP A SMALL ROCK (APPROX. SIZE OF A FOOTBALL) AND THREW INTO FEED HOPPER.

1993 · 3 incidents

December 18, 1993 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Mertens Construction Company, Inc · Fall onto or against objects

EE WAS LOOSING A NUT ON THE CRUSHER HIS FOOT SLIPPED AND HE BUMPED HIS TAILBONE ON PART OF THE CRUSHER FRAME.

November 16, 1993 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mertens Construction Company, Inc · Contact with hot objects or substances

EE WAS REMOVING HOSES FROM WATER PUMP HOT STEAM SHOT OUT AND BURNED EE.

July 12, 1993 MO · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Mertens Construction Company, Inc · Over-exertion in lifting objects

EE WAS MANUALLY PICKING UP SCRAP IRON PIECES. HE PICKED UP A 4 FT PIECE OF I BEAM THAT WAS TOO HEAVY AND STRAINED HIS LOWER BACK.

1992 · 2 incidents

June 1, 1992 MO · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Mertens Construction Company, Inc · Over-exertion (Not Elsewhere Classified)

EE WENT TO GET INTO HAUL TRUCK, SLIPPED AND TWISTED HIS LEFT KNEE.

1990 · 1 incident

October 29, 1990 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Mertens Construction Company, Inc · Struck by falling object

EMPLOYEE DROPPED A PRY BAR AND WHEN HE WENT TO RETRIEVE IT HIS FINGER GOT SMASHED BETWEEN THE BAR AND THE FRAME.

For insurers, brokers, and safety consultants

The full compliance file on Auxvasse South Quarry

A dated report covering the 26-year penalty trail, line-item violation pattern, contest and docket posture, rate-normalized peer benchmark, and full fatality history. Delivered as a PDF with the underlying data as CSV.