Mining Incidents

Knippa Quarry Metal/Non-Metal

Controlled by Vulcan Materials Company
Knippa, Uvalde County, TX  ·  Active
MSHA Mine ID: 4100075

Knippa Quarry has $15K in proposed MSHA penalties and $0 outstanding across 1 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
28
Years on record
1984–2021
Latest incident
Mar 2021
Compliance record
MSHA citations since 2000
84
citations
8
significant & substantial
$14,601
proposed penalties
$14,514
paid to date
99% of proposed penalties paid to date, a $87 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
67
inspections on record
948
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: 948 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.

Knippa Quarry has $15K in proposed MSHA penalties and $0 outstanding across 1 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.
$15K
proposed penalties
$15K
current assessed
$15K
paid to date
$0
outstanding
84 assessments are final orders; 1 contested dockets.
As of the most recent assessment on 2025-03-25.
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 14,956 0 0 0.0
2025 Q3 17,143 0 0 0.0
2025 Q2 18,238 0 0 0.0
2025 Q1 18,937 1 0 52.8
2024 Q4 18,715 0 0 0.0
2024 Q3 20,426 1 0 49.0
2024 Q2 19,612 0 0 0.0
2024 Q1 18,717 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 18,078 0 0 0.0
2023 Q3 19,435 1 0 51.5
2023 Q2 19,911 0 0 0.0
2023 Q1 18,932 0 0 0.0
2022 Q4 18,606 1 0 53.7
2022 Q3 22,949 0 0 0.0
2022 Q2 21,573 1 0 46.4
2022 Q1 20,070 0 0 0.0
2021 Q4 19,936 1 1 50.2
2021 Q3 21,282 1 0 47.0
2021 Q2 20,618 0 0 0.0
2021 Q1 17,270 1 0 57.9
2020 Q4 16,139 0 0 0.0
2020 Q3 16,185 0 0 0.0
2020 Q2 19,835 0 0 0.0
2020 Q1 19,556 0 0 0.0
2019 Q4 18,401 1 0 54.3
2019 Q3 18,537 0 0 0.0
2019 Q2 16,788 3 1 178.7
2019 Q1 17,035 3 1 176.1
2018 Q4 17,056 0 0 0.0
2018 Q3 17,439 0 0 0.0
2018 Q2 15,946 1 1 62.7
2018 Q1 14,684 0 0 0.0
2017 Q4 13,430 1 0 74.5
2017 Q3 14,697 0 0 0.0
2017 Q2 14,010 2 0 142.8
2017 Q1 13,305 1 0 75.2
2016 Q4 13,798 0 0 0.0
2016 Q3 14,276 0 0 0.0
2016 Q2 14,868 2 0 134.5
2016 Q1 13,660 0 0 0.0
2015 Q4 11,901 1 0 84.0
2015 Q3 13,127 0 0 0.0
2015 Q2 11,745 1 0 85.1
2015 Q1 11,271 2 0 177.4
2014 Q4 10,561 0 0 0.0
2014 Q3 12,496 3 0 240.1
2014 Q2 12,383 0 0 0.0
2014 Q1 12,857 0 0 0.0
2013 Q4 12,058 0 0 0.0
2013 Q3 13,695 3 1 219.1
2013 Q2 13,883 0 0 0.0
2013 Q1 13,817 3 0 217.1
2012 Q4 13,674 0 0 0.0
2012 Q3 14,335 0 0 0.0
2012 Q2 14,957 3 1 200.6
2012 Q1 15,856 0 0 0.0
2011 Q4 13,567 1 0 73.7
2011 Q3 16,172 0 0 0.0
2011 Q2 15,248 1 0 65.6
2011 Q1 14,783 2 0 135.3
2010 Q4 13,911 0 0 0.0
2010 Q3 15,066 0 0 0.0
2010 Q2 15,391 2 0 129.9
2010 Q1 14,991 5 0 333.5
2009 Q4 14,317 0 0 0.0
2009 Q3 14,318 0 0 0.0
2009 Q2 16,072 0 0 0.0
2009 Q1 16,722 5 1 299.0
2008 Q4 15,675 0 0 0.0
2008 Q3 17,161 0 0 0.0
2008 Q2 17,533 0 0 0.0
2008 Q1 17,954 6 0 334.2
2007 Q4 17,630 4 0 226.9
2007 Q3 18,976 0 0 0.0
2007 Q2 18,891 0 0 0.0
2007 Q1 19,464 0 0 0.0
2006 Q4 17,085 0 0 0.0
2006 Q3 20,163 1 0 49.6
2006 Q2 20,786 0 0 0.0
2006 Q1 21,226 3 0 141.3
2005 Q4 21,184 0 0 0.0
2005 Q3 24,615 0 0 0.0
2005 Q2 22,072 0 0 0.0
2005 Q1 20,332 0 0 0.0
2004 Q4 19,680 0 0 0.0
2004 Q3 21,469 1 0 46.6
2004 Q2 20,618 0 0 0.0
2004 Q1 19,188 1 0 52.1
2003 Q4 19,570 0 0 0.0
2003 Q3 19,038 0 0 0.0
2003 Q2 19,975 1 0 50.1
2003 Q1 22,176 0 0 0.0
2002 Q4 19,864 0 0 0.0
2002 Q3 23,453 4 0 170.6
2002 Q2 20,997 0 0 0.0
2002 Q1 18,088 0 0 0.0
2001 Q4 17,891 1 0 55.9
2001 Q3 15,558 0 0 0.0
2001 Q2 15,186 0 0 0.0
2001 Q1 14,523 0 0 0.0
2000 Q4 12,349 8 1 647.8
2000 Q3 13,553 0 0 0.0
2000 Q2 13,841 0 0 0.0
2000 Q1 10,682 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

28 on file

2021 · 1 incident

March 17, 2021 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Struck by flying object

On 3/17/2021 EE was loosening the toggle plate tension rod's 85mm nut, rod broke. The spring violently released hitting wrench and cheater pipe, which struck EE in the palm of left hand and under chin. EE was treated for a contusion & released. On 4/16/2021 EE sought medical treatment for same injury and was placed on restrictions making this a reportable incident on 4/16/2021.

2020 · 1 incident

July 9, 2020 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

EE was replacing VSI hammers by removing the lifting chain from several worn VSI anvils. The anvils were placed in the recycle basket. One anvil had the chain under the anvil. EE was bending over the edge of the basket and reaching in when EE lifted and turned the anvil. It was at that moment that they felt a sharp pain in lower back.

2016 · 2 incidents

October 15, 2016 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

EE was lifting a new rock shelf insert, weighing approx 80 lbs, from baskets. EE raised it approximately 4-5 inches above the basket when the insert began to slip from EE's grip. EE's left index finger was caught between the top of the basket and the bottom of the insert.

October 8, 2016 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

When moving a stand, employee's finger was pinched between the stand and a vertical support at the shop. Laceration to R middle finger, pad side, near tip required 7 stitches.

2012 · 2 incidents

October 16, 2012 TX · Metal/Non-Metal pumper HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

While shoveling spillage from under the tunnel conveyor on to the conveyor, the employee felt pain in the left side of his neck. He went to the doctor on 10-17-12, was diagnosed with a neck strain and placed on light duty. He was returned to full duty by same doctor on 10-19-12.

April 20, 2012 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

Employee was fueling excavator. The fuel nozzle was slipping out of the fuel tank so the employee reached up to grab it. While reaching for the nozzle the employee felt a sharp pain in his back. Employee decided to seek medical treatment on 6-12-2012. Diagnosis: Lumbar Strain. Light Duty.

2011 · 2 incidents

May 21, 2011 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

EE and two other employees were rotating the VSI crusher lid closed. EE had his left hand in the notch on the lid for pushing leverage. He was not able to move his hand and his left hand got caught between the notch and crusher motor resulting in a fracture to the top of his left hand.

May 7, 2011 TX · Metal/Non-Metal rock driller HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in pulling or pushing objects

EE was dropping hammers off at our C-conationer located at Vulcan Pit in Knippa, TX. Pulled on a drill hammer to get it out of pickup and felt a pop in his back. He finished unloading the hammers and returned home. Rested that day and woke up the next day with back hurting. Tried to work on the 9th. Could only make 1/2 day before he went to doctor. No witness.

2010 · 2 incidents

October 26, 2010 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

On 10/26/10 employee slipped as he was mounting a crane & strained his back & wrist. The employee was given restrictions by the doctor & was able to meet the restrictions performing his regular job duties. The employee's doctor notes were evaluated on 1/10/11 & it was determined to place the employee on limited activity to further help heal employee's injuries.

October 11, 2010 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in pulling or pushing objects

Employee was installing screens and felt sharp pain in stomach. The employee was given restrictions by the doctor and was able to meet the restrictions performing his regular job duties. Employee returned to doctor on 1/10/11 with continued restrictions and it was decided to accommodate employee and restrict regular job duties to further help heal employee's strain.

2009 · 1 incident

2006 · 2 incidents

November 15, 2006 TX · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Caught in, under or between a moving and a stationary object

Employee was pushing a fork in on the forklift by hand. When the fork slipped free - the employee's fingers were smashed between the fork and the fork stop.

February 6, 2006 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Vulcan Construction Materials, LLC · Struck by flying object

Injured was cutting old plate off the top of primary crusher jaw dies when wet material behind plate cut area popped and shot debris out. One piece found its way under his new-style cutting glasses (not goggles) and created a superficial cornea injury to his left eye.

2005 · 3 incidents

May 27, 2005 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in pulling or pushing objects

Injured was shoveling spillage under Tower #3 and got into some muddy material. He felt a pain in his right hand when he extracted the shovel.

May 25, 2005 TX · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

(Late report by EE. Treated with ibuprofin until 06/13/2005--when he sought medical treatment. Saw doctor on June 17th.) Slipped off haul truck while descending, causing a shoulder strain--i.e., missed a step and tried to catch himself with his arms. EE HAD SURGERY TO REPAIR TORN ROTATOR CUFF ON 9/13/05.

April 4, 2005 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
Vulcan Construction Materials, LLC · Fall onto or against objects

Employee was standing on the vibratory feeder helping with maintenance on the jaw crusher. He turned to step back from a metal plate that was about to be hoisted. His feet slipped out from under him. As he fell his right arm hit the edge of a step down in the feeder (18" high) which dislocated his right shoulder.

2004 · 2 incidents

July 8, 2004 TX · Metal/Non-Metal crane operator, mobile equipment operator (meo), dragline operator, dropball operator, rigger HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion in lifting objects

Employee was shoveling spilt material off of the platform around the vsi crusher. (Employee was placed under certain physical restrictions, but they did not affect his regular job duties.)

July 1, 2004 TX · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Vulcan Construction Materials, LLC · Over-exertion (Not Elsewhere Classified)

Ee was shoveling spilled material when he sprained his right shoulder. He returned to work the next day & performed his normal duties. He continued performing his normal duties up till 9-13-04. He had surgery performed on his shoulder on 9-14-04. He had surgery performed on his shoulder on 9-14-04 which has resulted in time lost from his job.

2003 · 2 incidents

1998 · 1 incident

September 8, 1998 TX · Metal/Non-Metal OTHER
Vulcan Construction Materials, LLC · (Not Elsewhere Classified)

A CUSTOMER TRUCK DRIVER (FOB DRIVER) HAD A HEARTATTACK WHILE STANDING IN FRONT OF HIS TRUCK. HE WAS NOT PERFORMING ANY WORK. NEITHER WAS HE ACTING UNDER THE DIRECTION OF PLANT EMPLOYEES MSHA SAN ANTONIO TX WAS NOTIFIED IMMEDIATELY HE LATERDIED AT AN AREA HOSPITAL. HE WORKED FOR "FRANK SMITH TRUCKING CO." IN MARBLE FALLS TEXAS

1997 · 1 incident

February 7, 1997 TX · Metal/Non-Metal coal/ore shovel operator, shoveler, power shoveler HANDTOOLS (NONPOWERED)
Vulcan Construction Materials, LLC · Struck against stationary object

EMP WAS TIGHTENING BOLTS ON THE TRACK IDLERS OF AN EXCAVATOR WHEN THE WRENCH SLIPPED OFF THE BOLT. THE EMPS RIGHT HAND STRUCK THE EXCAVATORS TRACKS. ON 2-20-97 THE EMP REPORTED INCIDENT AND WA S SENT TO DR. RIGHT THUMB HAS HAIRLINE FRACTURE.

1996 · 1 incident

April 22, 1996 TX · Metal/Non-Metal welder (shop) MACHINERY
Vulcan Construction Materials, LLC · Contact with hot objects or substances

EE WAS LAYING ON HIS SIDE CUTTING A QUARRY TRUCK BED LINER. A PIECE OF SLAG GOT INTO HIS EYE.

1988 · 1 incident

January 22, 1988 TX · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Vulcan Construction Materials, LLC · Caught in, under or between (Not Elsewhere Classified)

EMP. WAS PULLING THE LOCK LEVER ON THE FIFTH WHEEL OF A TRACTOR TRAILER RIG WHEN THE LEVER SWUNG BACK CATCHING HIS FINER.

1986 · 1 incident

June 28, 1986 TX · Metal/Non-Metal welder (shop) MACHINERY
White'S Mines Inc · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS WE5DING (INSIDE) A CRUSHER (IN CONFINED AREA) AND PULLED MUSCLE IN BACK OF NECK.

1985 · 1 incident

August 7, 1985 TX · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
White'S Mines Inc · Struck by... (Not Elsewhere Classified)

EMP WAS SETTING THE TIMING ON A SHOVEL TO ALIGN THE TIMING MARK HE HIT THE STARTER SWITCH MOTOR VIBRATION CAUSED A CLUTCH WRENCH TO FALL INTO THE CLUTCH ASEMBLY BRINGING THE WRENCH AROUND ON TOP OF HIS RT FOOT

1984 · 2 incidents

May 22, 1984 TX · Metal/Non-Metal backhoe operator, trackhoe operator HANDLING OF MATERIALS
White'S Mines Inc · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS CLEANING DRILL, WHILE DOING THIS BAR CAME LOOSE ON DRILL BOOM AND SUDDENLY DROPPED MASHING THUMB AND INDEX FINGER ON RIGHT HAND

April 24, 1984 TX · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
White'S Mines Inc · Struck against a moving object

EMPLOYEE WAS CLEANING THE QUARRY FLOOR WITH A FRONT END LOADER WHEN HE RAN INTO A LARGE TOE ON THE QUARRY FLOOR. THIS ACTION CAUSED THE LOADER TO BOUNCE VIOLENTLY JARRING AND TWISTING THE OPER ATOR IN HIS SEAT

For insurers, brokers, and safety consultants

The full compliance file on Knippa 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.