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Matthews Quarry: 117 MSHA citations Metal/Non-Metal

Matthews, Mecklenburg County, NC  ·  Active
MSHA Mine ID: 3102084

Matthews Quarry has $22K in proposed MSHA penalties and $0 outstanding across 0 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
17
Years on record
1994–2024
Latest incident
Oct 2024
Compliance record
MSHA citations since 2000
117
citations
14
significant & substantial
$21,933
proposed penalties
$21,933
paid to date
100% of proposed penalties paid to date, a $0 gap.
Source: MSHA violations data, updated weekly.
See Martin Marietta Materials, Inc.'s full MSHA compliance history →
Inspection activity
MSHA inspections since 2000
77
inspections on record
1,462
inspection hours
8.0
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.
117 citations across 1,462 inspection hours.
Source: MSHA inspections data, updated weekly.

Matthews Quarry has $22K 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.
$22K
proposed penalties
$22K
current assessed
$22K
paid to date
$0
outstanding
117 assessments are final orders; 0 contested dockets.
As of the most recent assessment on 2025-10-28.
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.
12.0%
significant & substantial
7.7%
high negligence or reckless
12.0%
reasonably likely or greater
50.4%
permanently disabling or fatal if injury occurs
Negligence coding: 0.0% none, 14.5% low, 77.8% moderate, 7.7% 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: 2026-06-10
0%
of limit-tested samples over the exposure limit
38
samples
17
limit-tested
Most sampled contaminants
  • Quartz, respirable, >1% Qtz18
  • Respirable dust, <.1mg17
  • Unlisted Particulate, respirable, <1% Qtz3
Show the individual readings (38)
Date Contaminant Concentration Limit Conc / limit Occupation
2026-06-10 Quartz, respirable, >1% Qtz 0.39 0.61 0.64 Oiler, Greaser
2026-06-10 Quartz, respirable, >1% Qtz 0.56 0.88 0.64 Oiler, Greaser
2026-06-10 Respirable dust, <.1mg 0 Truck Driver
2026-06-10 Respirable dust, <.1mg 0 Front-end Loader Operator
2025-09-16 Quartz, respirable, >1% Qtz 0.13 0.56 0.23 Crusher Oper/Worker
2025-09-16 Quartz, respirable, >1% Qtz 0.58 0.67 0.87 Laborer, Bullgang
2025-09-16 Unlisted Particulate, respirable, <1% Qtz 0.92 Crusher Oper/Worker
2025-09-16 Quartz, respirable, >1% Qtz 0.35 0.55 0.64 Laborer, Bullgang
2025-09-16 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-11-29 Respirable dust, <.1mg 0 Crusher Oper/Worker
2022-11-29 Respirable dust, <.1mg 0 Truck Driver
2022-11-29 Respirable dust, <.1mg 0 Front-end Loader Operator
2022-11-29 Quartz, respirable, >1% Qtz 0.21 Cleanup Man
2021-02-17 Quartz, respirable, >1% Qtz 0.16 0.57 0.28 Washer Operator
2021-02-17 Respirable dust, <.1mg 0 Washer Operator
2021-02-17 Respirable dust, <.1mg 0 Washer Operator
2014-06-26 Quartz, respirable, >1% Qtz 0.26 1.13 0.23 Truck Driver
2014-06-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2014-06-26 Respirable dust, <.1mg 0 Crusher Oper/Worker
2014-06-26 Respirable dust, <.1mg 0 Front-end Loader Operator
2009-06-17 Unlisted Particulate, respirable, <1% Qtz 0.16 Crusher Oper/Worker
2009-06-17 Quartz, respirable, >1% Qtz 0.39 0.81 0.48 Drill Operator, Rotary Air
2009-06-17 Quartz, respirable, >1% Qtz 0.24 0.85 0.28 Cleanup Man
2009-06-17 Quartz, respirable, >1% Qtz 0.27 0.95 0.28 Cleanup Man
2007-08-30 Respirable dust, <.1mg 0 Truck Driver
2007-08-30 Unlisted Particulate, respirable, <1% Qtz 0.15 Lab Technician
2005-04-27 Quartz, respirable, >1% Qtz 0.57 0.76 0.75 Utility Man
2005-04-27 Quartz, respirable, >1% Qtz 0.26 1.02 0.25 Truck Driver
2005-04-27 Respirable dust, <.1mg 0 Front-end Loader Operator
2005-04-27 Quartz, respirable, >1% Qtz 0.27 0.68 0.40 Crusher Oper/Worker
2002-06-26 Quartz, respirable, >1% Qtz 0.12 0.67 0.18 Utility Man
2002-06-26 Quartz, respirable, >1% Qtz 1.07 1.52 0.70 Truck Driver
2002-06-26 Respirable dust, <.1mg 0 Mechanic
2002-06-26 Quartz, respirable, >1% Qtz 0.17 1.2 0.14 Truck Driver
2002-01-30 Respirable dust, <.1mg 0 Drill Operator, Rotary Air
2002-01-30 Respirable dust, <.1mg 0 Truck Driver
2002-01-30 Quartz, respirable, >1% Qtz 0.54 1.78 0.30 Utility Man
2002-01-30 Respirable dust, <.1mg 0 Front-end Loader Operator
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.

Matthews 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
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 North Carolina, metal and nonmetal mining averaged 1.14 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 * 5.97 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.
Ownership history
  1. Martin Marietta Aggregates 1992 to 2005
  2. Martin Marietta Materials, Inc. 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2026 16
2025 15
2024 16
2023 14
2022 14
2021 21
2020 20
2019 17
2018 14
2017 14
2016 13
2015 13
2014 14
2013 14
2012 13
2011 14
2010 11
2009 13
2008 17
2007 17
2006 16
2005 16
2004 17
2003 17
2002 16
2001 12
2000 8
Source: MSHA quarterly employment and production, updated weekly.

Matthews Quarry sits in Mecklenburg County, North Carolina, where the Census mining category is 0.0% 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.
Mecklenburg County, North Carolina · Population 1,130,906
0.0%
Mining share of county employment
$83,765
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 8,127 0 0 0.0
2026 Q1 7,985 0 0 0.0
2025 Q4 7,229 1 0 138.3
2025 Q3 6,832 0 0 0.0
2025 Q2 8,228 0 0 0.0
2025 Q1 8,188 0 0 0.0
2024 Q4 8,200 1 0 122.0
2024 Q3 8,862 0 0 0.0
Show 98 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2024 Q2 9,244 0 0 0.0
2024 Q1 9,734 2 0 205.5
2023 Q4 9,385 0 0 0.0
2023 Q3 9,303 0 0 0.0
2023 Q2 8,389 2 0 238.4
2023 Q1 7,817 0 0 0.0
2022 Q4 8,347 11 3 1317.8
2022 Q3 9,231 0 0 0.0
2022 Q2 7,472 8 1 1070.7
2022 Q1 8,436 2 0 237.1
2021 Q4 10,816 0 0 0.0
2021 Q3 12,059 0 0 0.0
2021 Q2 11,839 0 0 0.0
2021 Q1 10,038 0 0 0.0
2020 Q4 10,697 0 0 0.0
2020 Q3 10,660 2 0 187.6
2020 Q2 11,080 0 0 0.0
2020 Q1 10,297 0 0 0.0
2019 Q4 10,445 0 0 0.0
2019 Q3 9,037 0 0 0.0
2019 Q2 8,805 0 0 0.0
2019 Q1 7,523 0 0 0.0
2018 Q4 8,184 0 0 0.0
2018 Q3 8,600 0 0 0.0
2018 Q2 8,423 0 0 0.0
2018 Q1 7,985 0 0 0.0
2017 Q4 7,640 0 0 0.0
2017 Q3 7,704 0 0 0.0
2017 Q2 8,601 0 0 0.0
2017 Q1 7,200 0 0 0.0
2016 Q4 7,667 2 0 260.9
2016 Q3 8,924 3 0 336.2
2016 Q2 8,967 0 0 0.0
2016 Q1 7,341 3 1 408.7
2015 Q4 7,601 0 0 0.0
2015 Q3 8,180 2 0 244.5
2015 Q2 7,913 0 0 0.0
2015 Q1 6,167 1 0 162.2
2014 Q4 7,035 0 0 0.0
2014 Q3 8,541 0 0 0.0
2014 Q2 7,191 1 1 139.1
2014 Q1 5,619 0 0 0.0
2013 Q4 5,388 0 0 0.0
2013 Q3 4,876 0 0 0.0
2013 Q2 5,052 1 0 197.9
2013 Q1 4,312 0 0 0.0
2012 Q4 4,516 4 0 885.7
2012 Q3 5,099 0 0 0.0
2012 Q2 4,901 1 0 204.0
2012 Q1 3,599 2 1 555.7
2011 Q4 4,437 0 0 0.0
2011 Q3 4,908 0 0 0.0
2011 Q2 4,152 1 0 240.8
2011 Q1 2,899 0 0 0.0
2010 Q4 5,291 1 0 189.0
2010 Q3 5,694 1 0 175.6
2010 Q2 5,759 0 0 0.0
2010 Q1 4,485 3 0 668.9
2009 Q4 6,588 0 0 0.0
2009 Q3 6,897 0 0 0.0
2009 Q2 7,219 2 0 277.0
2009 Q1 7,328 4 1 545.9
2008 Q4 5,956 0 0 0.0
2008 Q3 7,417 0 0 0.0
2008 Q2 8,844 4 2 452.3
2008 Q1 7,372 0 0 0.0
2007 Q4 9,062 0 0 0.0
2007 Q3 9,749 2 0 205.1
2007 Q2 9,736 0 0 0.0
2007 Q1 9,868 3 0 304.0
2006 Q4 8,020 0 0 0.0
2006 Q3 11,030 1 0 90.7
2006 Q2 10,577 5 2 472.7
2006 Q1 10,959 0 0 0.0
2005 Q4 11,423 0 0 0.0
2005 Q3 13,148 3 0 228.2
2005 Q2 11,909 3 0 251.9
2005 Q1 9,961 0 0 0.0
2004 Q4 10,581 1 0 94.5
2004 Q3 10,317 0 0 0.0
2004 Q2 10,131 0 0 0.0
2004 Q1 9,977 0 0 0.0
2003 Q4 10,345 3 0 290.0
2003 Q3 10,368 0 0 0.0
2003 Q2 8,247 0 0 0.0
2003 Q1 6,436 0 0 0.0
2002 Q4 7,365 1 0 135.8
2002 Q3 10,362 0 0 0.0
2002 Q2 11,392 2 0 175.6
2002 Q1 9,668 1 0 103.4
2001 Q4 9,145 0 0 0.0
2001 Q3 8,130 0 0 0.0
2001 Q2 5,943 0 0 0.0
2001 Q1 5,165 0 0 0.0
2000 Q4 4,734 0 0 0.0
2000 Q3 4,726 0 0 0.0
2000 Q2 4,636 0 0 0.0
2000 Q1 4,480 0 0 0.0
No fatalities recorded at this mine.

Reportable incidents

17 on file

2024 · 1 incident

2022 · 1 incident

May 17, 2022 NC · Metal/Non-Metal utility man, shift tech, service/dump truck operator HANDLING OF MATERIALS
Martin Marietta Materials, Inc. · Caught in, under or between a moving and a stationary object

While changing small motor, the motor smashed the employees finger.

2011 · 1 incident

January 12, 2011 NC · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON
Martin Marietta Materials, Inc. · Fall to the walkway or working surface

On an icy day the loader operator started his loader and climbed down. The operator slipped and fell on ice. The manager helped him up the operator was okay. In August the employee reported pain associated with the fall, after being diagnosed with a degenerative issue claiming the fall aggravated his condition. September 15, 2011 employee had surgery to repair his condition.

2004 · 1 incident

January 28, 2004 NC · Metal/Non-Metal drill helper SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall to the walkway or working surface

EE WAS WALKING BETWEEN THE SAND PUMP AND SAND SCREW AND TRIPPED ON AN ELECTRICAL CONDUIT, WHEN THIS HAPPENED THE EE EXTENDED HIS LEFT ARM AND LANDED ON THE GROUND. HAD A SMALL FRACTURE TO LEFT ELBOW.

2003 · 3 incidents

June 26, 2003 NC · Metal/Non-Metal truck driver POWERED HAULAGE
Martin Marietta Aggregates · Struck against a moving object

EE WAS TRAMMING THE R-50 HAUL TRUCK DOWN THE S. RAMP LOADED WHEN HIS BRAKES FAILED. HE DROVE TO THE NEXT BENCH THEN INTO THE BERM. THE TRUCK HITIT AT A PERPENDICULAR ANGLE CAUSING THE TRUCK TO JUMP THE BERM & STRIKE ANOTHER WHICH STOPPED THE TRUCK. THE OPERATOR WAS WEARING HIS SEAT BELT THUS KEEPING HIM IN THE TRUCK. X-RAYS SHOWED TWO FRACTURED RIBS. HE WAS RELEASED FOR LIGHT DUTY.

April 29, 2003 NC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Caught in, under or between a moving and a stationary object

ON 4/29/03 LEADPERSON WAS WORKING ON STATION #2 TOWER UNSTOPPING A CHUTE. HE WAS USING A STEEL BAR TO DISLODGE THE ROCK. THE BAR SLIPPED CAUSING HIS LEFT PINKY FINGER TO BE SMASHED BETWEEN THE BAR AND A STEEL STRUCTURE. CO-WORKER WAS THE FIRST TO LOOK AT THE FINGER. HE TOOK HIM TO THE FIRST AID CABINET AND CLEANED IT UP AND PUT AN ICE PACK ON IT. HE THEN BROUGHT HIM TO ME IN THE SE

February 6, 2003 NC · Metal/Non-Metal truck driver HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS HOLDING A BOLT FOR ANOTHER EMPLOYEE TO STRIKE AND FREE IT FROM THE JAW CRUSHER. THE SECOND EE MISSED HITTING INJURED'S RIGHT INDEX FINGER.

2000 · 1 incident

1999 · 2 incidents

November 8, 1999 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver SLIP OR FALL OF PERSON
Martin Marietta Aggregates · Fall from machine

WHILE CLIMBING UP THE LADDER TO ENTER THE CAB OF A EUCLID HAULAGE TRUCK EMPLOYEE SLIPPED ON THE SECOND STEP AND FELL TO THE GROUND BELOW LANDING ON HIS TAILBONE.

August 9, 1999 NC · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDLING OF MATERIALS
Martin Marietta Aggregates · Over-exertion in lifting objects

EE FELT HIS RT SHOULDER COME OUT OF PLACE WHEN HE PICKED UP A BELT BLOCK WEIGHING APPROX 20-25 LBS

1997 · 2 incidents

March 3, 1997 NC · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Martin Marietta Aggregates · Caught in, under or between a moving and a stationary object

MECHANIC WAS SERVICING THE DRILL AND HIS FEET WERE CAUGHT BENEATH THE TRACK AS THE DRILL OPERATOR BEGAN TO BACK UP.

1996 · 3 incidents

November 13, 1996 NC · Metal/Non-Metal beltman, conveyor man, conveyor belt worker, mobile bridge carrierman, feeder operator, conveyor rider HANDLING OF MATERIALS
Martin Marietta Aggregates · Struck against stationary object

EE WAS CARRYING A PIECE OF METAL AND WALKING UNDER A CONVEYOR FRAME. EE DUCKED HIS HEAD TO GO UNDER FRAME AND RAISED HIS HEAD TO SOON AND BUMPED HIS HEAD ON THE FRAME.

May 6, 1996 NC · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator MACHINERY
Martin Marietta Aggregates · Struck by flying object

EMPLOYEE WAS ASSISTING THE FOREMAN TO GET THE PLANT STARTED WHEN DUST FLEW INTO HIS EYES OFF THE PLANT.

February 21, 1996 NC · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDTOOLS (NONPOWERED)
Martin Marietta Aggregates · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS USING A SLEDGE HAMMER. HAMMER BOUNCED OFF OF A ROCK AND STRUCK EMPLOYEE ABOVE THE LEFT EYE.

1994 · 2 incidents

February 28, 1994 NC · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Martin Marietta Aggregates · Over-exertion in pulling or pushing objects

EMPLOYEE WAS PULLING PUMP HOSE TO REPLACE PUMP TO AN UPRIGHT POSITION RESULTING IN A LOWER BACK MUSCLE STRAIN DUE TO OVEREXERTION