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.
Roberts Quarry: 130 MSHA citations Metal/Non-Metal
Roberts Quarry has $33K in proposed MSHA penalties and $582 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
ⓘ
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.ⓘ
A Section 107(a) order removes miners from an area when an inspector finds an imminent danger. Each order is lifted once the condition is corrected, so this counts orders issued, not orders now in effect.Roberts Quarry has $33K in proposed MSHA penalties and $582 outstanding across 2 contested dockets.
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
Shares are computed over citations that carry the MSHA gravity and negligence coding; a small share of records are uncoded.ⓘ
Contesting a citation before the Federal Mine Safety and Health Review Commission is a lawful right. These figures state the public outcomes of that process, from MSHA's Contested Violations file.- Settled 1 · 100%
ⓘ
A reduction or dismissal at the Commission is a lawful outcome of contesting a proposed penalty. Figures are the proposed amount and the amount upheld in the docket's decision.| Docket | Decision | Judge | Year | Proposed / upheld |
|---|---|---|---|---|
| CENT20030153M | Settlement | Weisberger | 2003 | $1K → $802 |
| CENT 2011-392M | Settlement | Lesnick | 2011 | $117 → $100 |
ⓘ
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: 2024-07-16
ⓘ
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.- Respirable dust, <.1mg13
- Quartz, respirable, >1% Qtz11
- Nuisance dust, total, <1% Qtz7
- Aluminum oxide fumes1
Show the individual readings (48)
| Date | Contaminant | Concentration | Limit | Conc / limit | Occupation |
|---|---|---|---|---|---|
| 2024-07-16 | Respirable dust, <.1mg | 0 | Laborer, Bullgang | ||
| 2024-07-16 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2024-07-16 | Respirable dust, <.1mg | 0 | Rotary Bucket Ex. Operator | ||
| 2023-06-13 | Nuisance dust, total, <1% Qtz | 1.81 | 10 | 0.18 | Utility Man |
| 2023-06-13 | Nuisance dust, total, <1% Qtz | 0.76 | 10 | 0.08 | Truck Driver |
| 2023-06-13 | Nuisance dust, total, <1% Qtz | 0.48 | 10 | 0.05 | Front-end Loader Operator |
| 2020-09-09 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2020-09-09 | Respirable dust, <.1mg | 0 | Utility Man | ||
| 2020-09-09 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2018-01-24 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2018-01-24 | Respirable dust, <.1mg | 0 | Truck Driver | ||
| 2018-01-24 | Respirable dust, <.1mg | 0 | Laborer, Bullgang | ||
| 2018-01-24 | Quartz, respirable, >1% Qtz | 0.32 | 1.43 | 0.22 | Crusher Oper/Worker |
| 2014-05-07 | Quartz, respirable, >1% Qtz | 0.93 | 3.27 | 0.28 | Truck Driver |
| 2014-05-07 | Quartz, respirable, >1% Qtz | 0.24 | 1.31 | 0.18 | Truck Driver |
| 2014-05-07 | Quartz, respirable, >1% Qtz | 0.65 | 0.93 | 0.70 | Front-end Loader Operator |
| 2011-09-15 | Quartz, respirable, >1% Qtz | 0.6 | 3.1 | 0.19 | Truck Driver |
| 2011-09-15 | Quartz, respirable, >1% Qtz | 0.84 | 1.26 | 0.67 | Crusher Oper/Worker |
| 2011-09-15 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2009-10-28 | Quartz, respirable, >1% Qtz | 0.19 | 0.97 | 0.20 | Utility Man |
| 2009-10-28 | Respirable dust, <.1mg | 0 | Front-end Loader Operator | ||
| 2009-10-28 | Respirable dust, <.1mg | 0 | Crusher Oper/Worker | ||
| 2007-04-04 | Quartz, respirable, >1% Qtz | 0.3 | 1.54 | 0.19 | Laborer, Bullgang |
| 2005-03-23 | Respirable dust, <.1mg | 0 | Bulldozer Operator | ||
| 2005-03-23 | Quartz, respirable, >1% Qtz | 0.6 | 2.76 | 0.22 | Crusher Oper/Worker |
| 2005-03-23 | Quartz, respirable, >1% Qtz | 0.45 | 1.21 | 0.37 | Laborer, Bullgang |
| 2005-03-23 | Quartz, respirable, >1% Qtz | 0.42 | 1.4 | 0.30 | Complete Load-Haul-Dump |
| 2005-03-23 | Nuisance dust, respirable, <1% Qtz | 0.16 | 10 | 0.02 | Front-end Loader Operator |
| 2002-07-11 | Aluminum oxide fumes | 0.03 | 20 | 0.00 | Welder, etc. |
| 2002-07-11 | Nuisance dust, total, <1% Qtz | 4.63 | 10 | 0.46 | Utility Man |
| 2002-07-11 | Nuisance dust, total, <1% Qtz | 5.43 | 10 | 0.54 | Utility Man |
| 2002-07-11 | Nuisance dust, total, <1% Qtz | 2.07 | 10 | 0.21 | Front-end Loader Operator |
| 2002-07-11 | Nuisance dust, total, <1% Qtz | 8.15 | 10 | 0.82 | Crusher Oper/Worker |
| 2002-07-11 | Zinc oxide fumes | 0 | 10 | 0.00 | Welder, etc. |
| 2002-07-11 | Vanadium fumes | 0 | 50 | 0.00 | Welder, etc. |
| 2002-07-11 | Titanium dioxide fumes | 0.04 | 20 | 0.00 | Welder, etc. |
| 2002-07-11 | Nickel fumes | 0 | 3 | 0.00 | Welder, etc. |
| 2002-07-11 | Molybdenum fumes | 0 | 20 | 0.00 | Welder, etc. |
| 2002-07-11 | Manganese fumes | 0.16 | 5 | 0.03 | Welder, etc. |
| 2002-07-11 | Magnesium oxide fumes | 0.05 | 20 | 0.00 | Welder, etc. |
| 2002-07-11 | Lead fumes | 0 | 450 | 0.00 | Welder, etc. |
| 2002-07-11 | Iron oxide fumes | 1.13 | 20 | 0.06 | Welder, etc. |
| 2002-07-11 | Copper fumes | 0 | 300 | 0.00 | Welder, etc. |
| 2002-07-11 | Cobalt fumes | 0 | 300 | 0.00 | Welder, etc. |
| 2002-07-11 | Chromium, insoluble | 0 | 3 | 0.00 | Welder, etc. |
| 2002-07-11 | Cadmium oxide fumes | 0 | 100 | 0.00 | Welder, etc. |
| 2002-07-11 | Beryllium fumes | 0 | 6 | 0.00 | Welder, etc. |
| 2002-07-11 | Arsenic fumes | 0 | 1500 | 0.00 | Welder, etc. |
Area samples (mill and shop air)
Last sampled: 2002-07-11, 24 years agoShow the individual readings (1)
| Date | Contaminant | Concentration | Limit | Conc / limit | Area sampled |
|---|---|---|---|---|---|
| 2002-07-11 | Nuisance dust, total, <1% Qtz | 9.34 | SF ROAD |
Roberts Quarry recorded 0.00 reportable injury cases per 100 full-time workers in 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.| 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 * | 0.00 | 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 |
- ARKHOLA 1978 to present
| Year | Employees |
|---|---|
| 2026 | 13 |
| 2025 | 13 |
| 2024 | 15 |
| 2023 | 13 |
| 2022 | 12 |
| 2021 | 12 |
| 2020 | 11 |
| 2019 | 12 |
| 2018 | 13 |
| 2017 | 13 |
| 2016 | 12 |
| 2015 | 11 |
| 2014 | 9 |
| 2013 | 10 |
| 2012 | 10 |
| 2011 | 12 |
| 2010 | 21 |
| 2009 | 13 |
| 2008 | 15 |
| 2007 | 14 |
| 2006 | 18 |
| 2005 | 18 |
| 2004 | 20 |
| 2003 | 21 |
| 2002 | 20 |
| 2001 | 21 |
| 2000 | 18 |
Roberts Quarry sits in Cherokee County, Oklahoma, where the Census mining category is 1.6% of county employment.
ⓘ
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.ⓘ
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.| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2026 Q2 | 8,036 | 1 | 0 | 124.4 |
| 2026 Q1 | 8,084 | 3 | 0 | 371.1 |
| 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 |
Show 98 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2024 Q2 | 8,623 | 0 | 0 | 0.0 |
| 2024 Q1 | 8,539 | 0 | 0 | 0.0 |
| 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 | 0 | 0 | 0.0 |
| 2022 Q1 | 6,244 | 0 | 0 | 0.0 |
| 2021 Q4 | 6,860 | 0 | 0 | 0.0 |
| 2021 Q3 | 7,561 | 0 | 0 | 0.0 |
| 2021 Q2 | 7,776 | 0 | 0 | 0.0 |
| 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 | 1 | 1 | 132.4 |
| 2017 Q2 | 7,341 | 0 | 0 | 0.0 |
| 2017 Q1 | 8,201 | 1 | 0 | 121.9 |
| 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 | 4 | 1 | 618.1 |
| 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 | 3 | 0 | 569.3 |
| 2013 Q1 | 4,711 | 0 | 0 | 0.0 |
| 2012 Q4 | 4,929 | 1 | 0 | 202.9 |
| 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 | 1 | 1 | 157.6 |
| 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 | 1 | 0 | 94.7 |
| 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 |
Reportable incidents
16 on file2012 · 1 incident
2001 · 2 incidents
EE WAS HELPING DIG OUT ROCKS FROM THE STANDARD CRUSHER & GOT HIS FINGER BETWEEN A ROCK & THE LIP OF THE CRUSHER CAUSING A LACERATION.
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
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
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
EMPLOYEE SAID PIT LOADER OPERATOR LOADED HIS HAUL UNIT TOO HARD AND CAUSED HIM TO HAVE A SORE NECK.
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
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
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
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
TIGHTENING FAN BELT ON LOADER THE BAR SLIPPED OUT AND HE FELL ON GROUND LANDING ON R SIDE
EMPLOYEE WAS LOWERING A WEAR PLATE INTO IMPACT CRUSHER & IT SLIPPED & SMASHED HIS RT MIDDLE FINGER
1988 · 1 incident
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
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
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
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.