Martin Marietta Materials,Inc.Mining Incidents in 2010

On 6/18/10 at approx 5:15am, normal operating The #5 coal mill experienced a minor explosion. Upon inspection, a pair of plant pliers were found damaged in the reject chute wheel barrow, Pliers entered the mill unknowingly causing an apparent ignition of coal without warning. No damage and no injuries. Never stopped nor caught fire. The event was reported to MSHA @5:27am.

A loud noise originated from the area of the coal fan for #5 kiln. Upon inspection, it was determined that 13 out of 42 housing bolts had failed on the fan housing. There were no injuries and no fire as a result of this event. MSHA was notified at 6:52 a.m.

The investigation into the accident is on-going, but as of now, it appears as the three employees were installing ground vault indicator lights when an ach flash occurred, injuring them. The employees were transported to the hospital.

While the employee was climbing the ladder on his haul truck, the employee said that his hand slipped and he started falling, landed briefly on his feet, and then fell to the ground on his back, rolling over onto his left shoulder.

Employee was walking down a ladder and stepped off the step and twisted ankle.

After starting the air compressor to use air wrench employee tossed the hose over the compressor to the other side of the truck. The employee felt a pop and pain in his right shoulder joint. After further testing a determination was made to do a rotator cuff repair operation. On November 1, 2010 surgery was performed and a tear was confirmed and repaired.

EE had gone up into the cab of the Cat 988H loader he operates approx. 15 min prior to shift. The EE caught his heel on the steps while descending from the cab & fell striking the right temporal area of his head on a 1"" diameter steel rod at the rear of the machine. The rod is used to secure wheel chocks during normal operation. He received multiple injuries to his skull.

Storeroom Supervisor was walking back into the NW corner door of the storeroom at approx 1:20 PM when he lost his balance and fell onto the pavement in front of the storeroom. He went down onto his right side causing an injury to his right hip and upper right leg femur requiring surgery to repair on June 25, 2010. Off work presently until recovery is complete.

Two employees were relocating a plastic water line in the field. One employee was on the ground directing the other employee in the loader. When the loader moved, the plastic pipe shifted striking the employee on the ground in the chest. He was taken to the local Hospital for observations.

EE was on the quarry site for demolition of Liebherr R984 front shovel. EE pulled cylinder pin out of the boom and the cylinder fell on his foot.

While attempting to exit Rock Drill in high wind conditions, door was suddenly pulled open causing employee to lose balance and land on ground off balance. Suffered strain and pain to lower back and left side.

EE was pulling up a wash down hose from the ground level, when he felt his lower back tightened and sudden sharp pain.

The investigation into the accident is on-going, but as of now, it appears as the three employees were installing ground vault indicator lights when an ach flash occurred, injuring them. The employees were transported to the hospital.

While working on top of the water truck employee tripped and fell into the handrail. Injury was later diagnosed as torn rotator cuff. As of Nov. 1, 2010 employee is unable to perfrom job duties. Surgery is scheduled for Nov. 27, 2010.

An Employee was repairing a hydraulic pump. Once it was repaired, the employee picked up the hydraulic pump to put it in place. Two days later the employee reported his upper back was hurting from lifting the pump.

The driller was in the process of removing the DTH hammer from the drill steel. He applied a locking wrench to the hammer, and he stepped out of the cab to connect the drill steel to the rotation head. As the two parts connected, the wrench turned and struck the driller's foot, fracturing bone in his foot.

H.R. Manager was walking away from the office to get her car and slipped and fell on the paved visitor parking area west of the office. When her feet went out beneath her she reached back with her left arm to catch her fall and had an injury to her left wrist. The injury required med. intervention that day and restricted duty thereafter during recovery period.

Labor EE was walking from the foreman's office to the storeroom at approx. 7:10 AM. While walking east of Maintenance shop he caught his left foot on a pallet & fell onto his left side causing an injury. Reported later that morning as 1st Aid only. However, by 11/4/2010, additional pain required medical attention for a Left Ankle injury that has him on restricted duty

Employee was changing out worn brake shoes on a company owned railcar. While using a new brake shoe to tap worn brake shoe out, felt a pop in his left shoulder and experienced pain. Immediately reported to supervisor but did not want to go to the clinic. Went to clinic on 11/08/2010 because of continued pain in left shoulder.

Employee was flipping gates to switch from 57 to 467 in Station 6. Went to flip gate over and it didn't shut all the way. Employee pulled it back to shut it the rest of the way and didn't let go of it in time resulting in his middle finger on left hand being smashed.

EE cut his left wrist with a utility knife while attempting to cut a patch for a conveyor belt. EE was pushing the knife away from his body but contacted his left wrist when the knife slipped. Resulting laceration severed 3 tendons that required minor surgery to repair.

While pulling drill steel from a rack on the drill he alleges he slipped and it caused his back to start hurting. He did not fall down.

PM Repairman was standing on the ground recording his work in front of the #4 Kiln dust pump. While reaching in to touch the electronic recording button on the drive guard, he began to step to his right to go to the next job, and twisted his right knee. This caused a mild strain that required medical attention & several restricted days to heal. RTW full duty 10/4/10.

EE was pulling the PC-100 air compressor about 2.5' by the tongue so that the fuel hose from the lube truck would reach the fuel tank on the compressor. The wheel rolled over a small hump which caused the compressor to roll forward quickly and pinched the EE's finger between the tongue and the door of the truck. Resulted in stitches to his right index finger.

Employee was removing a piece of steel beam from the back of a truck and the beam shifted and landed on top of employees left hand. His index, middle and ring fingers were pinched between the beam and the truck causing a fracture and laceration to the middle finger.

Electricians were replacing the #6 thermocouple on the Mag plant calciner. At 10:30am ee was pulling to remove the old unit from the housing when it let go suddenly causing him to slip and fall from his step ladder. He initially retuned to work and during a recheck was place on restricted duty on 8/13/10 to assist with healing.

While taking bolt out of a 775 injector, the teeth on his 3/8 drive ratchet broke and he hit his elbow on an engine bracket. It felt like he hit his crazy bone and didn't think anything about it. It felt fine at that time. While working Saturday he noticed that it was starting to swell. He iced it and mentioned it Monday Morning when he arrived at work.

EE was fixing an electrical control wire for the manlift on the BTI powder truck. EE dropped an electrical connector to the ground & crouched down to retrieve it. When he stood up his knee popped. Initial diagnosis was torn cartilage. MRI later revealed a torn miniscus. EE continued to work until 06/28/10 when he had surgery. EE returned to light duty on 06/29/10.

Employee stepped down out of the back of a truck and turned his ankle.

Emp failed to report incident in a timely manner. Initial request for medical attention 05/24/2010. Investigation, employee claims he was lifting pins on 05/06 and 05/07, had pain in shoulder. On 05/13 slipped, increased pain.

While cleaning around #2 conveyor Injury moved the corner post to the guard. He was shaking the post to remove loose material when he felt pain in his knee. He continued working until 12pm when he said the pain had gotten worse, he reported incident to supervisor. *Employee worked restricted duty for three days before returning to regular duty.

Employee slipped on step and twisted Left ankle

Electrician was walking away from the 5/6 Kiln Bldg. outside the West ground area to join his co worker waiting 25' away in the shop truck. When he stepped down with his left foot in front of the #5 side pocket box, he twisted his ankle requiring medical attention and restricted duty days to complete healing.

EE took spacers weighing approx 15lbs each for Jaw out of storage basket. He came across motor base platform going to install plates. He stepped down from one platform to another, his right foot slipped on wet platform. Foot slipped forward away from body and other foot wasn't planted. He landed on the platform hitting he step with the middle lumbar region of his back.

Removing plow bolts form a loader bucket cutting edge for replacement. Other ee operated the impact wrench to remove nut and the bolt backed out and started to spin so victim place his hand on the bolt to hold it in place. Bolt spun and sharp edge of bolt cut through the glove and into left index finger causing laceration requiring 6 stitches to close. Medical only

While shoveling out a corner on Friday, the EE nicked his knuckle on a rock. EE did have gloves on and it did not cut the gloves. EE did not realize he cut his finger until he removed his gloves. When the EE arrived to work on 12/21/10, his finger was swollen and had a fair amount of pain. EE was set up with a doctor appointment and he was administered an antibiotic shot.

An employee was inside a screen deck changing screens. Material was frozen to the side of the screen, so another employee was heating the outside of the screen with a propane torch. Debris poped off the the screen and a hot piece landed on the right side of his face, just under his safety glasses. He wiped it off with his gloved hand and a piece of metal got in his right eye.

EE was attempting to remove short cable from shrive that had become wedged on the roof bolter. EE was applying pressure to a short bar when it slipped and caused the EE's hand to strike the feed rail causing a laceration to his 5th pinky finger. Laceration req. 5 stitches.

EE was trying to pry a large boulder loose with the loader in the pit. The bucket slipped on the boulder and jarred the loader. The right control arm would not lock in place and started moving back and forth while the EE tried to guide the loader. EE suffered a strain injury which was treated conservatively, but after further complaints medical treatment was prescribed on 3/25/11.

Miner was turning off pump on dredge, turned to walk back to cab and stepped in man hole falling partly in (one leg), hitting his left side.

Employee pinched his right ring finger between a return roller and the frame of a conveyor causing a laceration requiring 3 stitches.

Employee was cutting a piece of rubber with a utility knife and the knife slipped causing a laceration to his leg that required stitches.

Employee was dismounting a 777 Haul Truck. When he reached ground level, he turned to walk away from the truck and felt a burning pain in his right knee. *Continued pain and went to clinic on 8/27/10. Given anti-inflammatory and physical therapy order for evaluation. Treatment clarifed with clinic on 9/7/10.*

Employee was in a hurry and was performing repetitive function of his job. Employee received a laceration to the top of his head.

Employee was washing down the walkway around the #1 screen when the feed chute stopped up causing some rock to spill out. A small one hit him on the arm, then as he turned to move out of the way a bigger rock hit the back of his hard hat penetrating it and causing a small laceration on the back of his head that required three stitches.

Employee was helping to remove a bolt from the 4265 gyratory crusher when his right middle finger got caught between the large bolt and the crusher frame. The employee was taken for medical treatment and received stitches to close up the cut. He was released to full duty.

EE was taking the Fletcher drill down the ramp to the Lime Creek level when he lost control on the slope. EE complained of neck and shoulder pain. EE was taken to the emergency room and examined. EE received 1 stitch in his left index finger.

Employee was stepping off a piece of equipment, when he missed a step and fell back on his heel.

Employee was skinning a cable and cute his left thumb on the back side.

Employee was washing out under station #2 when a rock approx. 7"" diameter bounced off scalp screen falling approx 20' striking employee on top left side of hard hat. The force drove hard hat down on EE's head causing bump and laceration to left side of head. Upon being examined at ER the Dr. administered 5 staples to laceration on employee's scalp.

While replacing steering hose on D8R.He was down under floor plates reaching in a bad spot to change a hose, must have over reached pulling muscle. It didn't feel bad at the time so didn't tell supervisor for two days. On Friday arm felt bad and fingers a little numb, went to chriopractor.

Technician installing a wiring harness on a 248 skid loader. The cab was raised supported by the cab safety lock and the hoist. Working conditions were normal, no slippery materials that would have caused the slip. While backing out of the belly left foot slipped he fell causing a cut on his head required seven stitches.

Employee was hand scaling and a rock fell striking his right hand causing a laceration on the bottom part of thumb and fore finger

EE suffered a non-displaced fracture of tip of his left ring finger. EE was installing a new throat bracket on a 50"" hammer mill. EE was wearing 2 pairs of gloves but had his finger in a pinch point as the bracket was being installed.

An Employee was starting mobile equipment on the ready line. After starting the first 992G loader he suffered a heart attack.

A Fed-X driver delivered a package while walking to his truck he slipped on the ice falling backwards hitting his head on the asphalt. Lost consciousness for about 1 min before regaining consciousness. Was transported to the hsp by ambulance and was treated for a concussion and cut to the back of the head. He received 6 stitches and was released

Inspector was attempting to climb the ladder to mount the TR 70 Terex haul truck when he injured his knee. He had his left knee on the ladder and pushed himself up with the right when he heard a ""pop"" and felt pain in his right knee. He finished out the inspection and went to the Dr the next day and was diagnosed with a pulled muscle and put on light duty for a week.