Wash plant operator was operating a front-end loader during the overnight shift as normal. EE exited the loader and entered the hopper filled with sand the EE had just dumped. EE was fatally injured when they were engulfed in the sand, as it vibrated to the bottom of the hopper. EE may have entered the hopper to try to retrieve two pieces of metal inadvertently dumped into hopper.
Roberta Mine Metal/Non-Metal
Roberta Mine has $90K in proposed MSHA penalties and $0 outstanding across 13 contested dockets, plus health sampling and the full incident record.
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- Fatalities
- 1
- Total incidents
- 49
- Years on record
- 1988–2024
- Latest incident
- Nov 2024
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This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.Roberta Mine has $90K in proposed MSHA penalties and $0 outstanding across 13 contested dockets.
ⓘ
Differences between proposed and paid penalties reflect both settlements and conference reductions and amounts still owed. Outstanding is the balance currently owed.ⓘ
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 |
|---|---|---|---|---|
| 2025 Q4 | 29,913 | 3 | 1 | 100.3 |
| 2025 Q3 | 27,186 | 0 | 0 | 0.0 |
| 2025 Q2 | 27,240 | 0 | 0 | 0.0 |
| 2025 Q1 | 24,252 | 0 | 0 | 0.0 |
| 2024 Q4 | 25,273 | 0 | 0 | 0.0 |
| 2024 Q3 | 27,353 | 0 | 0 | 0.0 |
| 2024 Q2 | 28,610 | 0 | 0 | 0.0 |
| 2024 Q1 | 24,733 | 0 | 0 | 0.0 |
Show 95 earlier quarters Hide earlier quarters
| Quarter | Hours worked | Citations | S&S | Per 1M hrs |
|---|---|---|---|---|
| 2023 Q4 | 22,738 | 0 | 0 | 0.0 |
| 2023 Q3 | 25,362 | 3 | 0 | 118.3 |
| 2023 Q2 | 26,262 | 0 | 0 | 0.0 |
| 2023 Q1 | 23,963 | 0 | 0 | 0.0 |
| 2022 Q4 | 25,316 | 0 | 0 | 0.0 |
| 2022 Q3 | 25,570 | 3 | 0 | 117.3 |
| 2022 Q2 | 23,893 | 0 | 0 | 0.0 |
| 2022 Q1 | 25,494 | 0 | 0 | 0.0 |
| 2021 Q4 | 25,464 | 0 | 0 | 0.0 |
| 2021 Q3 | 23,871 | 0 | 0 | 0.0 |
| 2021 Q2 | 26,650 | 1 | 0 | 37.5 |
| 2021 Q1 | 27,983 | 1 | 0 | 35.7 |
| 2020 Q4 | 27,890 | 0 | 0 | 0.0 |
| 2020 Q3 | 27,572 | 2 | 0 | 72.5 |
| 2020 Q2 | 25,121 | 0 | 0 | 0.0 |
| 2020 Q1 | 23,752 | 0 | 0 | 0.0 |
| 2019 Q4 | 21,756 | 0 | 0 | 0.0 |
| 2019 Q3 | 22,275 | 0 | 0 | 0.0 |
| 2019 Q2 | 26,022 | 1 | 1 | 38.4 |
| 2019 Q1 | 27,199 | 0 | 0 | 0.0 |
| 2018 Q4 | 23,948 | 0 | 0 | 0.0 |
| 2018 Q3 | 21,668 | 0 | 0 | 0.0 |
| 2018 Q2 | 26,921 | 0 | 0 | 0.0 |
| 2018 Q1 | 25,611 | 1 | 0 | 39.0 |
| 2017 Q4 | 21,654 | 0 | 0 | 0.0 |
| 2017 Q3 | 22,916 | 0 | 0 | 0.0 |
| 2017 Q2 | 23,746 | 0 | 0 | 0.0 |
| 2017 Q1 | 22,153 | 9 | 1 | 406.3 |
| 2016 Q4 | 20,418 | 2 | 0 | 98.0 |
| 2016 Q3 | 22,838 | 0 | 0 | 0.0 |
| 2016 Q2 | 22,992 | 2 | 0 | 87.0 |
| 2016 Q1 | 20,892 | 0 | 0 | 0.0 |
| 2015 Q4 | 21,437 | 1 | 0 | 46.6 |
| 2015 Q3 | 23,476 | 0 | 0 | 0.0 |
| 2015 Q2 | 20,296 | 2 | 0 | 98.5 |
| 2015 Q1 | 19,855 | 0 | 0 | 0.0 |
| 2014 Q4 | 22,314 | 2 | 0 | 89.6 |
| 2014 Q3 | 20,897 | 0 | 0 | 0.0 |
| 2014 Q2 | 18,923 | 0 | 0 | 0.0 |
| 2014 Q1 | 16,778 | 0 | 0 | 0.0 |
| 2013 Q4 | 17,179 | 0 | 0 | 0.0 |
| 2013 Q3 | 18,123 | 0 | 0 | 0.0 |
| 2013 Q2 | 18,547 | 0 | 0 | 0.0 |
| 2013 Q1 | 15,374 | 4 | 1 | 260.2 |
| 2012 Q4 | 15,951 | 0 | 0 | 0.0 |
| 2012 Q3 | 16,109 | 0 | 0 | 0.0 |
| 2012 Q2 | 16,510 | 0 | 0 | 0.0 |
| 2012 Q1 | 14,833 | 0 | 0 | 0.0 |
| 2011 Q4 | 13,968 | 0 | 0 | 0.0 |
| 2011 Q2 | 16,592 | 0 | 0 | 0.0 |
| 2011 Q1 | 14,145 | 0 | 0 | 0.0 |
| 2010 Q4 | 14,300 | 2 | 0 | 139.9 |
| 2010 Q3 | 14,331 | 3 | 0 | 209.3 |
| 2010 Q2 | 15,123 | 0 | 0 | 0.0 |
| 2010 Q1 | 14,140 | 3 | 0 | 212.2 |
| 2009 Q4 | 14,189 | 0 | 0 | 0.0 |
| 2009 Q3 | 16,867 | 0 | 0 | 0.0 |
| 2009 Q2 | 17,571 | 1 | 1 | 56.9 |
| 2009 Q1 | 13,364 | 0 | 0 | 0.0 |
| 2008 Q4 | 15,326 | 0 | 0 | 0.0 |
| 2008 Q3 | 20,172 | 0 | 0 | 0.0 |
| 2008 Q2 | 20,917 | 0 | 0 | 0.0 |
| 2008 Q1 | 23,299 | 4 | 0 | 171.7 |
| 2007 Q4 | 33,471 | 0 | 0 | 0.0 |
| 2007 Q3 | 29,067 | 0 | 0 | 0.0 |
| 2007 Q2 | 29,677 | 15 | 6 | 505.4 |
| 2007 Q1 | 28,663 | 13 | 4 | 453.5 |
| 2006 Q4 | 35,113 | 0 | 0 | 0.0 |
| 2006 Q3 | 34,454 | 0 | 0 | 0.0 |
| 2006 Q2 | 30,674 | 16 | 3 | 521.6 |
| 2006 Q1 | 30,255 | 0 | 0 | 0.0 |
| 2005 Q4 | 28,635 | 0 | 0 | 0.0 |
| 2005 Q3 | 29,653 | 7 | 4 | 236.1 |
| 2005 Q2 | 26,949 | 16 | 4 | 593.7 |
| 2005 Q1 | 27,288 | 0 | 0 | 0.0 |
| 2004 Q4 | 25,980 | 11 | 4 | 423.4 |
| 2004 Q3 | 26,046 | 0 | 0 | 0.0 |
| 2004 Q2 | 25,970 | 7 | 2 | 269.5 |
| 2004 Q1 | 23,929 | 0 | 0 | 0.0 |
| 2003 Q4 | 19,608 | 0 | 0 | 0.0 |
| 2003 Q3 | 20,640 | 4 | 2 | 193.8 |
| 2003 Q2 | 25,392 | 0 | 0 | 0.0 |
| 2003 Q1 | 24,164 | 0 | 0 | 0.0 |
| 2002 Q4 | 24,188 | 3 | 0 | 124.0 |
| 2002 Q3 | 18,552 | 0 | 0 | 0.0 |
| 2002 Q2 | 25,316 | 2 | 0 | 79.0 |
| 2002 Q1 | 20,431 | 0 | 0 | 0.0 |
| 2001 Q4 | 26,347 | 5 | 1 | 189.8 |
| 2001 Q3 | 26,684 | 0 | 0 | 0.0 |
| 2001 Q2 | 26,375 | 1 | 0 | 37.9 |
| 2001 Q1 | 26,261 | 6 | 1 | 228.5 |
| 2000 Q4 | 24,568 | 0 | 0 | 0.0 |
| 2000 Q3 | 27,191 | 0 | 0 | 0.0 |
| 2000 Q2 | 27,289 | 1 | 1 | 36.6 |
| 2000 Q1 | 24,463 | 5 | 2 | 204.4 |
Fatalities at this mine
1 recordedReportable incidents
48 on file (excluding fatalities above)2024 · 1 incident
The miners were trying to switch out a 10" x 50' poly pipe that had ruptured with a Caterpillar excavator. EE had put the chain choker on the pipe so it could be removed from the ditch and was trying to exit the ditch at the steepest end and in doing so lost footing and fell down twisting left knee.
2021 · 1 incident
The operator went out to the manual water cannon to reposition it and slipped. EE was trying to stop the fall and grabbed a beam to hold self up and in doing so twisted around fracturing the humerus near the shoulder. We have installed a no slip surface in this area and ordered a remote controlled nozzle.
2020 · 1 incident
Miner was changing the bag on the rotary airlock at the base of the dust collector. EE was trying to clear a bridge and removed the guard and put EE's hand in the airlock to clear the bridge without ensuring that EE locked out the disconnect. While doing so, the airlock actuated and EE's hand became caught between the blade and the side wall.
2019 · 1 incident
The miner was walking beside a pick-up truck and slipped in mud and when EE grabbed the side of the bed on the truck EE's hand was cut.
2011 · 2 incidents
Miner was attempting to remove a bolt from an actuator when the bolt broke. His momentum from the force applied made him step backwards to balance himself. When he stepped back his knee twisted causing the injury.
A 10" water pipe chained to an excavator bucket whipped while workers were trying to clear a clog. The miner was walking back to the head of the pipe and was struck in the leg. The miner suffered a proximal tibular fracture where the tibia connects to the fibula.
2008 · 2 incidents
Miner was feeding wire over a beam to wire in new lights at the dry plant. He felt no effects until the next day. He has pain in in his shoulder when he rotates his arm and has occasional numbness in his fingers.
Haulage road was not properly constructed and the seat on the pan was not properly set to the right amount of pressure resulting in the miner receiving a back strain from the strong bouncing of the equipment.
2007 · 4 incidents
Miner was going down onto the beach and slipped on the steps and twisted his ankle.
Miner was trying to get onto the railcar to apply the brake and slammed his knee into the car.
Miner allowed a sand line to become clogged. In the course of unblocking it the water close to the pump became heated and when the blockage broke loose the hot water shot out on him.
Miner was grinding on steel and a tiny piece of the metal bounced behind his safety glasses and hit his eye.
2006 · 7 incidents
Miner stood up from working on loader and hit head on the boom.
Platform on the wheel loader gave way while he was standing on it. The loader was being repaired and a supporting piece had been removed. He tried to balance himself on the platform and fell hard on his feet when the platform slipped. He suffered a jarring injury to his left knee. The mechanic has knee problem history prior to coming to the company.
Employee was standing beside Pump face trying to pry the seal while the backhoe lifted with a chain. The lifting ring broke causing the chain and ring to hit the miner in the right wrist and forearm causing a 1 inch laceration approx 1/4" deep and blunt force trauma resulting in contusions and a slight abruption to the forearm.
Miner struck finger on 2 x 8 board.
Miner was using torch and pushed a bucket back with his leg. When he started the torch, his pants leg ignited from gasoline. A miner left an unmarked, unapproved container of gasoline in the area and the miner doing the cutting failed to do a work area inspection before he began his work.
Miner hurt knee last year and did not seek medical attention. He is now seeking help because the knee is giving him trouble.
Miner was futting a piece of pipe with a torch and the pipe broke loose burining his arm. Over the weekend the burn wound became infected resulting in fever and general malaise.
2005 · 3 incidents
EE was exiting the loader and slipped coming down the ladder. He fell forward and used his hands to push off the loader and avoid hitting his head, but landed hard on the ground in the process.
Employee was pulling up roots in the pit and the chaulk ledge he was standing on broke away and he twisted his knee.
Employee was cutting a conveyor belt with a utility knife and it slipped, cutting his thigh.
2001 · 2 incidents
EE WAS RUNNING BULLDOZER ON AN OPEN PIT MINE ROAD, MOVING FROM ONE SIDE OF THE JOB SITE TO ANOTHER ON THE ROAD. THE DOZER BLADE WAS TOO LOW. THEDOZER DROVE INTO A LITTLE MUD HOLE. HIS BLADE CA UGHT ON THE ROAD.
CUT LEFT KNEE USING A CHAINSAW.
2000 · 1 incident
EE CUT HIS LEG USING A CHAINSAW
1999 · 1 incident
EE WAS TRYING TO CLEAR A BLOCKED SANDLINE THROUGH 4" CLEANOUT. THE LINE STARTED CLEARING OUT AND EE DID NOT MOVE OUT OF THE WAY.
1998 · 1 incident
EMPLOYEE WAS REPLACING BLADES(CUTTING) ON A BUSH HOG MOVER. THE MOVER SHIFTED AS THE CUTTING BLADES WERE BEING TIGHTENED AND BROKE EMPLOYEES LEG.
1997 · 2 incidents
EE WAS STACKING 100 LB BAGS AND STRAINED HIS LOWER BACK.
EE WAS MOWING THE GRASS & A SMALL BRUSH BETWEEN PINE TREES-
1996 · 13 incidents
EE WAS PICKING UP THE TONGUE OF A FARM PLANTER (SEED) AND HURT HIS LOWER BACK.
OPERATING/DRIVING A FARM TRACTOR.
WALKING FROM SHOP TO WAREHOUSE CARRYING A BOX WHEN A PICKUP TRUCK STRUCK HIM ON THE TAIL END OF A BUMPER.
EE WAS TRYING TO DUMB LADDER INTO LOADER.
STACKING SAND BAGS ON PALLET.
EE WAS HELPING TO MOVE A DREDGE AND GOT A STEEL SPLINTER IN HIS MIDDLE FINGER ON HIS LEFT HAND. EE THOUGHT HE HAD REMOVED ALL FO THE METAL BUT HAD NOT. EE REPORTED INCIDENT TO ME 6-25-96.
CUUT LEFT HAND ON METAL SOCKING SAND.
CRAWLING INSIDE DRYER DRUM. HE GOT A PIECE OF METAL IN HIS RIGHT EYE.
GRABBED A POLE MOVING THE DREDGE IN ALLON HOLE AND A SPLINTER OFF THE POLE STUCK IN RIGHT THUMB FINGER.
PARTICVLE OF SAND WAS BLOWN INTO EMPLOYEES RIGHT EYE.
STEPPED OFF TRUCK AND TWISTED RIGHT KNEE.
WIND BLEW SAND IN EYE.
SAND PARTICLE WAS BLOWN INTO EMPLOYEES EYE BY WIND.
1995 · 1 incident
TRUCK TRANSMISSION FELL ON HIS THUMB. [RIGHT]
1993 · 1 incident
EMPLOYEE WALKING STEPPED IN LOOSE SAND TWISTED KNEE INJURY TO LEFT KNEE.
1990 · 1 incident
EMPLOYEE TRYING TO SLOW WELDER RPM AND ACCIDENTLY PUT HIS RIGHT HAND INTO WELDER'S FAN BLADE.
1989 · 1 incident
ULLING WEEDS FROM AROUND SCALE HOUSE BY USING A SHOVEL BENDING OVER CONTRIBITING TO BACK INJURY.
1988 · 2 incidents
I.NAME WAS CHECK LATCHAS ON DOORS ON PNEUMATIC TANK & SLIPPED OF THE TANK
I NAME WAS HOLDING A BAR FOR A FELLOW EMP WHO WAS HITTING END OF BAR WITH A SLEDGE HAMMER. HEIS HAND SLIPED ON BAR WHICH MAD EMP WITH HAMMER MISS END OF THE BAR AND HIT HIS FINGERS
The full compliance file on Roberta Mine
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.