Mining Incidents

Roberts Quarry Metal/Non-Metal

ARKHOLA · Surface
Controlled by CRH PLC
Tahlequah, Cherokee County, OK  ·  Active
MSHA Mine ID: 3401130

Roberts Quarry has $28K in proposed MSHA penalties and $280 outstanding across 2 contested dockets, plus health sampling and the full incident record.

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Fatalities
0
Total incidents
16
Years on record
1984–2012
Latest incident
Jul 2012
Compliance record
MSHA citations since 2000
130
citations
31
significant & substantial
$28,219
proposed penalties
$27,722
paid to date
98% of proposed penalties paid to date, a $497 gap.
Source: MSHA violations data, updated weekly.
Inspection activity
MSHA inspections since 2000
76
inspections on record
1,016
inspection hours
12.8
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.
130 citations across 1,016 inspection hours.
Source: MSHA inspections data, updated weekly.

Roberts Quarry has $28K in proposed MSHA penalties and $280 outstanding across 2 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.
$28K
proposed penalties
$28K
current assessed
$28K
paid to date
$280
outstanding
117 assessments are final orders; 2 contested dockets.
As of the most recent assessment on 2026-01-09.
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 7,161 0 0 0.0
2025 Q3 7,256 0 0 0.0
2025 Q2 7,798 1 0 128.2
2025 Q1 7,682 1 0 130.2
2024 Q4 8,895 0 0 0.0
2024 Q3 10,126 0 0 0.0
2024 Q2 8,623 0 0 0.0
2024 Q1 8,539 0 0 0.0
Show 96 earlier quarters
Quarter Hours worked Citations S&S Per 1M hrs
2023 Q4 7,265 0 0 0.0
2023 Q3 7,753 0 0 0.0
2023 Q2 8,052 1 0 124.2
2023 Q1 6,723 0 0 0.0
2022 Q4 7,331 2 0 272.8
2022 Q3 7,826 0 0 0.0
2022 Q2 7,415 1 0 134.9
2022 Q1 6,244 1 0 160.2
2021 Q4 6,860 0 0 0.0
2021 Q3 7,561 0 0 0.0
2021 Q2 7,776 2 0 257.2
2021 Q1 5,977 0 0 0.0
2020 Q4 5,752 0 0 0.0
2020 Q3 7,322 0 0 0.0
2020 Q2 7,440 0 0 0.0
2020 Q1 7,850 0 0 0.0
2019 Q4 7,732 0 0 0.0
2019 Q3 7,814 0 0 0.0
2019 Q2 7,111 1 0 140.6
2019 Q1 7,251 1 0 137.9
2018 Q4 7,849 0 0 0.0
2018 Q3 8,388 0 0 0.0
2018 Q2 9,567 0 0 0.0
2018 Q1 8,893 0 0 0.0
2017 Q4 7,165 0 0 0.0
2017 Q3 7,553 2 2 264.8
2017 Q2 7,341 0 0 0.0
2017 Q1 8,201 2 0 243.9
2016 Q4 8,341 0 0 0.0
2016 Q3 8,503 0 0 0.0
2016 Q2 6,748 4 2 592.8
2016 Q1 6,626 0 0 0.0
2015 Q4 6,471 5 1 772.7
2015 Q3 8,024 0 0 0.0
2015 Q2 7,316 5 2 683.4
2015 Q1 5,437 1 0 183.9
2014 Q4 4,914 0 0 0.0
2014 Q3 5,358 0 0 0.0
2014 Q2 5,362 0 0 0.0
2014 Q1 4,465 0 0 0.0
2013 Q4 4,648 2 0 430.3
2013 Q3 5,009 0 0 0.0
2013 Q2 5,270 5 0 948.8
2013 Q1 4,711 0 0 0.0
2012 Q4 4,929 2 0 405.8
2012 Q3 5,522 0 0 0.0
2012 Q2 6,123 0 0 0.0
2012 Q1 4,508 0 0 0.0
2011 Q4 4,550 0 0 0.0
2011 Q3 6,530 0 0 0.0
2011 Q2 6,255 0 0 0.0
2011 Q1 4,780 0 0 0.0
2010 Q4 7,035 1 0 142.1
2010 Q3 5,709 0 0 0.0
2010 Q2 6,345 2 1 315.2
2010 Q1 6,018 0 0 0.0
2009 Q4 4,874 2 0 410.3
2009 Q3 5,096 2 0 392.5
2009 Q2 5,462 0 0 0.0
2009 Q1 5,275 0 0 0.0
2008 Q4 4,002 0 0 0.0
2008 Q3 6,433 0 0 0.0
2008 Q2 7,001 0 0 0.0
2008 Q1 5,575 0 0 0.0
2007 Q4 5,951 0 0 0.0
2007 Q3 3,889 0 0 0.0
2007 Q2 8,064 1 0 124.0
2007 Q1 8,674 0 0 0.0
2006 Q4 10,557 2 0 189.4
2006 Q3 10,669 0 0 0.0
2006 Q2 10,905 0 0 0.0
2006 Q1 11,055 8 1 723.7
2005 Q4 11,214 0 0 0.0
2005 Q3 11,942 4 0 335.0
2005 Q2 11,196 0 0 0.0
2005 Q1 10,359 0 0 0.0
2004 Q4 11,329 0 0 0.0
2004 Q3 11,329 0 0 0.0
2004 Q2 12,262 0 0 0.0
2004 Q1 11,702 4 3 341.8
2003 Q4 12,374 0 0 0.0
2003 Q3 12,416 0 0 0.0
2003 Q2 12,672 1 0 78.9
2003 Q1 11,303 0 0 0.0
2002 Q4 10,911 2 2 183.3
2002 Q3 12,029 8 5 665.1
2002 Q2 11,135 0 0 0.0
2002 Q1 11,601 10 3 862.0
2001 Q4 11,500 0 0 0.0
2001 Q3 14,090 2 1 141.9
2001 Q2 12,229 0 0 0.0
2001 Q1 8,772 9 2 1026.0
2000 Q4 11,194 0 0 0.0
2000 Q3 10,169 0 0 0.0
2000 Q2 8,861 12 1 1354.2
2000 Q1 8,314 2 1 240.6
No fatalities recorded at this mine.

Reportable incidents

16 on file

2012 · 1 incident

July 18, 2012 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON
ARKHOLA · Over-exertion (Not Elsewhere Classified)

Had just repaired the drill and was watching it drill to make sure repairs worked when a hose blew apart. Took off running to get away and blew out left knee.

2001 · 2 incidents

April 30, 2001 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
ARKHOLA · Caught in, under or between (Not Elsewhere Classified)

EE WAS HELPING DIG OUT ROCKS FROM THE STANDARD CRUSHER & GOT HIS FINGER BETWEEN A ROCK & THE LIP OF THE CRUSHER CAUSING A LACERATION.

January 17, 2001 OK · Metal/Non-Metal driller, highwall operator, highwall drill operator HANDLING OF MATERIALS
ARKHOLA · Over-exertion (Not Elsewhere Classified)

EE WAS HELPING TO CLEAN THE SHOP AND PICKED UP ONE END OF AN OLD CUTTING EDGE FROM A LOADER. HE STRAINED HIS RIGHT ELBOW AS HE WAS DRAGGING IT ACROSS THE FLOOR.

2000 · 1 incident

January 5, 2000 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
ARKHOLA · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS HELPING THE WELDER SLIDE A PIECE OF STEEL IN PLACE AND FELT A POP IN HIS GROIN AREA. HE WAS NOT LIFTING IMPROPERLY OR STRAINING.

1999 · 1 incident

September 15, 1999 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
ARKHOLA · Struck by... (Not Elsewhere Classified)

EE WAS GRINDING A SCRATCH AWL TO SHARPEN THE POINT AND AS HE WAS SHARPENING THE TOOL, IT WAS CAUGHT BY THE GRINDING WHEEL AND THIS PULLED HIS HAND INTO THE WHEEL. HIS RIGHT INDEX FINGER CAME I NTO CONTACT WITH THE WHEEL AND CAUSED THE LACERATION.

1996 · 2 incidents

July 1, 1996 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver POWERED HAULAGE
ARKHOLA · Over-exertion (Not Elsewhere Classified)

EMPLOYEE SAID PIT LOADER OPERATOR LOADED HIS HAUL UNIT TOO HARD AND CAUSED HIM TO HAVE A SORE NECK.

June 29, 1996 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
ARKHOLA · Struck by flying object

EE WAS PREPARING TO INSTALL A COUNTERWEIGHT BACKON THE SHAFT OF A VIBRATOR SCREEN. AS HE & ANOTHER EE WERE LIFTING THE COUNTERWEIGHT, THE CHISELTHAT WAS USED TO HOLD THE WEIGHT APART CAME OUT & STRUCK EE IN HIS EYE.

1995 · 1 incident

May 1, 1995 OK · Metal/Non-Metal welder (shop) SLIP OR FALL OF PERSON
ARKHOLA · Fall from ladders

EMPLOYEE WAS CUTTING ON A PIPE UNDER THE STANDARD CRUSHER STANDING ON A LADDER. OIL SPRAYED OUT OF THE PIPE AND CAUSED THE EMPLOYEE TO FALL OFF THE LADDER. HE FELL INTO MUD AND SPRAINED HIS KNEE.

1994 · 1 incident

August 1, 1994 OK · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDLING OF MATERIALS
ARKHOLA · Over-exertion (Not Elsewhere Classified)

EMPLOYEE WAS HELPING CARRY ONE END OF A PROPANE BOTTLE, SLIPPED, DROPPED THE BOTTLE AND WHEN HE DID, HE STRAINED HIS BACK.

1991 · 1 incident

November 4, 1991 OK · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer SLIP OR FALL OF PERSON
ARKHOLA · Fall onto or against objects

EMPLOYEE WAS TRYING TO OPEN THE GATE ON THE ANFO BIN USING A PRYBAR. HIS FEED SLIPPED AND HE FELL INTO THE BAR STRAINING HIS NECK AND SHOULER.

1990 · 2 incidents

August 7, 1990 OK · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
ARKHOLA · Fall to the walkway or working surface

TIGHTENING FAN BELT ON LOADER THE BAR SLIPPED OUT AND HE FELL ON GROUND LANDING ON R SIDE

May 10, 1990 OK · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
ARKHOLA · Caught in, under or between a moving and a stationary object

EMPLOYEE WAS LOWERING A WEAR PLATE INTO IMPACT CRUSHER & IT SLIPPED & SMASHED HIS RT MIDDLE FINGER

1988 · 1 incident

April 15, 1988 OK · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver HANDLING OF MATERIALS
ARKHOLA · Struck by falling object

EMPL WAS WORKING ON TRUCK REPLACING U-JOINTS & U-JOINT FELL ON END OF LEFT THUMB RESULTING IN SMALL FRACTURE AT END OF THUMB. EMPL TRUCK BROKE DOWN AT MINE, HE IS NOT EMPLOYEE AT THE MINE SI TE.

1986 · 1 incident

October 22, 1986 OK · Metal/Non-Metal welder (shop) MACHINERY
ARKHOLA · Struck by... (Not Elsewhere Classified)

THERE WAS AN IN7ERNATIONAL 400 LOADER TOOTH LODGED IN THE 5 1/2 FT CRUSHER EMPLOYEE WAS CUTTING OUT WITH A TORCH AND IT POPPED LOOSE AND STRUCK HIM IN THE HEAD PRESSURE PUSHED HARD HAT DOWN O N CUTTING GOGGL9S AND CAUSED A LACERATION IN THE RT CHEEK

1985 · 1 incident

May 10, 1985 OK · Metal/Non-Metal driller, highwall operator, highwall drill operator HANDLING OF MATERIALS
ARKHOLA · Struck against stationary object

EMPLOYEE WAS CLEANING UP ON TOP OF PLANT. EMPLOYEE WAS BENT OVER ASKING UP ROCKS STOOD UP AND TUNED AROUND AT THE SAME TIME WHEN HE DID HE HIT HIS RIGHT EYE ON A SUPPORT BEAM.

1984 · 1 incident

March 2, 1984 OK · Metal/Non-Metal driller, highwall helper, highwall drill helper POWERED HAULAGE
ARKHOLA · Fall from machine

EMPLOYEE WAS OPERATING AN LOADER PREPARING A PLACE TO DRILL. AS HE WAS HE HEASINGTOWARD THE HIGHWALL THE ENGINE STALLED AND HE PANICKED THINKING THE LOADER WAS GOING OVER HE JUMPED OFF THE LOA LOADER AND WHEN HE HIT THE GROUND INJUICED HIS LEFT HEEL. THE LOADER STOPED AFTER HE JUMPED.

For insurers, brokers, and safety consultants

The full compliance file on Roberts 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.