Columbia River Carbonates (Woodland Mill Metal/Non-Metal

Miner was kneeling down on concrete floor performing clean-up activities and injured knee.

Miner was putting in a seal on a bucket elevator by hammering it in place with a brass punch when they missed the punch and hit their hand with the hammer.

Miner was using a scraper to remove rock from a walkway and slipped on the loose material and did the splits. Miner felt a pop in lower back area followed by discomfort.

A miner was struck in the side of their foot by a piece of wood while standing in a area where wood splitting activities were happening.

Miner was carrying a magnet when it suddenly pulled them into a beam column trapping their right thumb between the column and the magnet.

Miner twisted while stacking 50lb bags of powder and felt a pop like sensation in EE's upper right side causing discomfort.

Miner was moving a tool cart back to the shop from a work area when EE slipped on ice. EE was able to use the tool cart for support to avoid a fall, but EE's feet slipped out from under EE in opposite directions causing injury to the groin.

A temporary employee was resting an arm on a gravity roller conveyor when the employee moved it into contact with an energized incline conveyor head pulley, trapping the arm between the gap of the two conveyors causing abrasion injuries.

Miner experienced back pain after getting off a forklift.

Miner experienced back pain during shoveling activities.

Miner was in close contact with another employee who tested positive for COVID-19 and has now tested positive.

The miner was in close contact with another employee who tested positive for COVID-19 and has now tested positive themselves.

A miner was in close contact with another employee who tested positive for COVID-19 and has now tested positive.

A miner was in close contact with another employee who tested positive for COVID-19 and has now also tested positive.

A miner was in close contact with another employee who tested positive for COVID-19 and has now tested positive.

A miner was in close contact with another employee who tested positive for COVID-19 and has now tested positive themselves.

Miner had finished cleaning buildup below the tail pulley of an incline conveyor and as miner was standing up, struck head on the steel braces for the structure knocking off hard hat resulting in a head laceration.

Miner was operating a Vermeer Dingo to clean around the grizzly. The equipment EE was operating shifted unexpectedly, pinning EE's left pinky finger between the controls of the Dingo and the structure support beam, resulting in a laceration requiring stitches.

Miner was disassembling area guarding and moving the metal pieces to a staging area when one of the pieces started to fall. Miner thought was out of the way, but EE's hand became pinned between the metal and a concrete ecology block causing injury. Miner was wearing gloves.

Employee was trying to turn guard on grinder while grinder was still powered and moving. Employee's finger got caught and pulled into wheel, sliced into the top of left index finger.

Miner was changing screens on 1205 from a bent position and felt a pop in EE's lower back when EE was staging bottom screen frame for removal.

Miner was bagging grit material using a roller conveyor to transport the bag from the fill station to the seal station. The corner of the bag caught in the roller and stopped moving suddenly causing the Miner to twist and hurt EE's lower back.

Miner was removing a guard off a rotor above miner's head. When the last bolt was removed, the guard assembly fell down striking miner in the face resulting in two lacerations above the left eye.

Miner stumbled getting out of a chair in the control room. A coworker reached out to steady EE and they both fell to the floor. The miner who stumbled ended up with a broken leg.

Miner was unplugging a sump line that was charged with compressed air. The line was disconnected at one end and when the plug released, the line kicked backed and hit the miner in EE's hip/pelvis area.

Miner was bagging grit material and used left hand to guide a stuck bag up the belt resulting in hand getting pinched between the bag and feed roller. Miner did not report the incident to a supervisor until 5 weeks later.

Miner had punched out for the day and was leaving the mine site when EE struck the top of EE's head on the buildings outside awning.

Miner was welding in an area where other work activities were taking place. Miner was measuring the transition and wind blew particles under miner's safety glasses from grinding activities into miner's right eye.

Miner was stripping a CAT5 communication wire to expose the inside wires and the blade of the utility knife EE was using cut into EE's right thigh causing a deep laceration requiring stitches.

Miner was descending stairs on the outside of the Roller Mill Building when miner heard a loud popping sound and felt intense pain in right knee.

Miner was moving railcars remotely from the ground when the gravel under feet shifted causing ee to loose footing and fall, injuring back.

Miner was removing metal grating segments, which weigh in range of 25 to 50 lbs, from the process ditch when miner had a sudden sharp pain in miner's lower back.

Miner was moving/lifting tote bins of soil samples weighing approx 30 lbs each when they felt lower back pain that did not diminish with time.

Miner was using a shovel to move material at the Hammer Mill Chute two to three feet so it could be accessed with a Dingo Compact Utility Loader. Miner hurt upper back during shoveling process.

As the miner was descending a rock car they misplaced a foot while stepping from the rock car to the ground and stumbled causing miner to strain back. Miner had previously washed out a railcar and was wearing generic steel toe rubber boots. Standard PPE for moving rock cars is lace up steel toe boots with ankle support.

Miner noticed pain and locking issues with EE's ring and middle finger on both hands a few weeks ago. Symptoms were increased when tying super-sack strings and operating the grit bagging station. Miner reported incident to EE's supervisor on 04/26/16.

Miner was in chute of Hammer Mill grinding welds. Area is small/dusty as debris is dislodged from vibrations. Miner was wearing face shield and safety glasses. Miner had eye irritation after job. Flushing eyes did not relieve discomfort. Miner was sent to the doctor who removed small metallic body from right eye & two small metal shavings from eyelid margin of both eyes.

Miner moving rail car into position. Railcar travelled past drain approx. one foot. Miner attempted to back car with a manual rail car mover tool (mule), a pry bar designed for this task. While pulling down on the mule, the car moved forward causing mule handle to move upward pinching miner's thumb between bar handle and car support beam.

Miner was attempting to move a file cabinet in the Electrical Shop by himself. While moving backwards, he tripped, file cabinet came towards him and he caught it which strained/contused his left shoulder.

Miner was washing screens. He bent over to pick up a bolt on the ground and his back spasmed and tightened. On 02/10/2015 he was sent to the physician for evaluation and treatment. Most likely related to disk problem experienced at home in July of 2014. On this incident, Dr. returned him to work on light duty until 02/18/2015.

Miner was inside and cleaning storage tank 316 with tank mixer locked out. As worker passed by mixer blade, his little finger brushed against mixer blade. Blade was sharp and cut finger requiring four sutures.

Miner was grinding a bevel into a rubber boot material. The grinder blade jumped off the belt and nicked/cut his right thumb. Grinder was equipped with guard and miner was wearing leather gloves at time of occurrence. Miner was taken to physician and received treatment, including stitches.

Miner was carrying 2 each 50# bags of product (in separate trips) into office trailer. On Friday 1/21/11, miner' s final day at the company(retired thereafter), miner complained of knee inflammation & sought physician evaluation. Knee strain/sprain diagnosed. Miner told HR director that he had ongoing arthritis in this knee & that the carrying of bags likely inflamed it.

iner was walking across plant site during heavy snpw/ice weather, slipped on ice covered pavement and fell to the ground striking right shoulder.

Employee was going up extension ladder leaned against a tank. The ladder slid when he reached about the 4th rung. The cleat of the ladder hit the employee in the right shin. He received 7 stitches and returned to work.

Miner was driving bearing shaft out of gearbox with hammer and brass punch. Shard of punch broke off and was driven into right hand between thumb and index finger. Miner transported to physician and shard surgically removed. Miner missed next scheduled work day and returned to regular duties on 12/15/08.

EE was loading palletts into bagging pallet dispenser and pinched middle finger between pallet and pallet dispenser frame, bruised and swollen, treating Dr prescribed 3 days of light hand use.

Miner was removing and re-stacking 50# bags on a pallet and strained lower back. She did not report this to anyone, however, until December 8, 2008 at which time she was transported to physiciaan for evaluation and treatment. Miner was placed on restricted duty pending release from treating physician.

Miner attempted to expedite the unloading of a screw conveyor unit from a truck. He attempted a single arm lift of a part and strained his shoulder. Treating physicain placed him on restricted duty and released him for full duty on July 23, 2008.

Miner was using a hand grinder on a steel framework. He was wearing safety glasses but a piece of metal lodged in his eye. He was transported to an optometric physician who removed the fragment(s) and he was released the same day to return to work with no restrictions. Miner re-instructed on requirement to wear face shield or goggles when grinding.

Miner recalls falling against a metal pole in the warehouse. She did not think she was injured and forgot the incident. Later in the week she felt a sharp pain in her back when doing certain activities. On 11/13/07 she reported this to management for the first time. She was sent to the DR, who diagnosed contusion of posterior rib, light duty restrictions.

Miner lifting container for laboratory mill and strained neck/shoulder. Next day sent to physician who diagnosised as "sprain of cervical spine/strain of thoracic left" sent back to work with no restirctions. Treated as first aid until second visit on 9/10/07, where further treatment and medication prescribed and injury deemed reportable.

Millwright was straightening a piece of metal in a vice. Struck metal with hammer & small shard of metal from hammer flew off & entered arm. Transported to Kaiser where a physician removed shart & sealed wound with2 stitches.

Miner was labeling 7 gallon product buckets by manually taking them off pallet. He backed up and turned his foot on a pallet behind him while carrying a bucket thereby spraining his knee. Miner reported this to company on 3/29/07 when his knee still hurt.

Miner was getting off tractor (Kubata - small tractor) and turned ankle on ground. He was diagnosed with a sprained ankle at the ER after x-ray. Miner placed on light duty.

Miner left company employ on 1/10/06. Filed work comp. claim for hearing loss - prolonged exposure to industrial noise. Miner was employed at company for 13 years.

Miner was exiting forklift when his foot caught on brake pedal causing him to trip and fall to ground. He fell against concrete footing and cracked one rib - broke second rib.

EMPLOYEE WAS WORKING ON LINES FOR INSTALLED PRESSURE WASHER. HE LOCKED OUT THE UNIT AND DISASSEMBLED LINE. HE REMOVED PRESSURE WASHER MINIFOLD - COMPUTER-ACTIVATED VALVE OPENED AND RELEASED STORED PRESSURE FROM LINE. PRESSURIZED WATER STREAM STRUCK EMPLOYEE IN LEFT EYE (ABRASION/IRRITATION OF EYE). HE WAS NOT WEARING SAFETY GLASSES.

Miner was walking down wheelchair access ramp at front office when he slipped on frosty surface, fell backwards and struck his head on ramp causing concussion and neck strain. Miner was first employee to office on frosty morning. Ramp had been resurfaced.

MINER WAS CLIMBING DOWN OFF PARKED RAILCAR AFTER SETTING THE BRAKE. WHEN HE STEPPED ONTO THE GROUND HE WRENCHED HIS BACK. THIS INCIDENT OCCURRED DURING DAYLIGHT HOURS UNDER DRY CONDITIONS WITH NO SLIPPERY SURFACES OR CONDITIONS INVOLVED.

EE WAS CLEANING SUMP DITCH IN PLANT AND LEANED STEEL GRATING ON ITS EDGE, EE LOOKED TO THE SIDE WITH HAND RESTING AT EDGE OF DITCH WHEN GRATING FELL AND STRUCK HAND, EE TRASPORTED TO LOCAL DR, NO BROKEN BONES BYT SWELLING AND BLUISH RESULTING IN LIGHT DUTY

Miner was inspecting area/equipment near settling lagoon. while walking he slipped on slippery ground and fell, spraining right ankle.

CLEANING OUT A FLOW METER, EMPLOYEE REACHED UP TO PULL DOWN LEVER TO FLUSH THE LINE. THE LEVER WAS STUCK OR HARD TO OPERATE.

Employee was carrying heavy coiled welding leads down stairs while cable slipped, he tried to catch with extended arm.

MINER WAS LIFTING METAL FLOOR GRATE WHEN AN ADJACENT GRATE SLIPPED AND PINCHED THE MIDDLE FINGERTIP OF HIS RIGHT HAND. MINER WAS WEARING LEATHER GLOVES BUT PORTION OF SKIN ON FINGERTIP SLICED OFF (NAIL INTACT).

MINER, ON A LADDER CLEARING BLOCKED FLOW METER LINE WITH A PRESSURE WASHER, SLIPPED AND FELL, STRIKING HIS BACK ON A MOTOR OIL SIGHT GLASS.

MINER WAS EXITING CAT EXCAVATOR WHEN HE SLIPPED AND TWISTED HIS BACK, LANDING ON HIS FEET BUT ABRUPTLY. WET SLURRY ON CAT AND MINER'S FEET PROBABLY CONTRIBUTED TO ACCIDENT.

CARPAL TUNNEL ATTRIBUTED TO COMPUTER WORK AT IMPROPER COMPUTER STATION IN SHOP. STATION NOW ADJUSTED. WORKER COMPLAINED OF NUMBNESS IN WRISTS, HANDS, FOREARM.

MINER WAS MOVING A LARGE HOSE REEL AND PINCHED HIS HAND BETWEEN REEL AND A STORAGE RACK. RIGHT INDEX FINGER WAS CUT REQUIRING 3 STITCHES. RELEASED FOR FULL WORK DUTIES.

MINER WAS HELPING INSTALL ACCESS LADDER/ PLATFORM AND INED UP BOLT HOLES WITH SPUD WRENCH. WRENCH SLIPPED OUT OF BOLT HOLE AND STRUCK MINER IN FACE. LACERATION OF SKIN ON NOSE AND LIP CHIPPED TOOTH. CONTUSION ON FACE/ SCALP NECK.

MINER IS A MILLWRIGHT IN THE MAINTENANCE DEPT. HE COMPLAINED OF NUMBNESS IN HANDS. PHYSICIAN 0N1/7/02 DIAGNOSED BILATERAL CARPAL TUNNEL SYNDROME ASSOCIATED WITH WORK ACTIVITIES OVER THE YEARS

MINER WAS WELDING ON STAINLESS TANK DURING 3-4 HOUR PERIOD. WEARING PROPER HOOD/LENS. SUFFERED FLASH IN EYES, DISCOVERED THAT NIGHT/MORNING. TREATED BY EMERGENCY ROOM, MEDICATED CAUSE APPEARS TO BE POSSIBLE REFLECTION ENTERING SIDEL BOTTOM OF WELDING MAST/HOOD OVER PROLONGED TIME.

WORKER WAS REMOVING CAP FROM DRUM OOF ACETIC ACID & PUMPING CONTENTS TO NEW DRUM WITH CAP ALSO OFF INHALED FUMES THROAT, NOSE, LUNGS BURNING SENSATION REMOVED TO FRESH AIR SAW DR NEXT DAY EXAM & SENT BACK TO WORK. WORKER TO RET IF NECESSARY

CONTRACT LABORER (EMPLOYERS OVERLOAD) SENT TO PRESSURE WASH GUTTERS (4 HR SCHEDULED JOB). WORKER CAUGHT TIP OF RIGHT THUMB IN STREAM OF PRESSURE WASHER, CUTTING THUMB AND ENGORGING WITH WATER. TRANSPORTED BY CRC PERSONNEL TO ER. THUMB DRAINED, STITCHED AND ANTIBIOTICS ADMINISTERED.

WORKER COMPLAINED OF ELBOW PAIN/NUMBNESS SAW DR ON DAY OFF (12/16) DIAGNOSED AS EPICANDYLITIS TENNIS ELBOW-& WORK RELATED. PLACED ON MODIFIED WORK RESTRICTIONS BY DR UNTIL 12/3/99

WORKER SLIPPED ON FLOOR AND SPRAINED KNEE. FLOOR SURFACE WAS COVERED WITH SLURRY FROM TANK THAT OVER FLOWED. WORKER DID NOT SEEK MEDICAL ATTENTION UNTIL 12/2/99 AND CONTINUED WORKING. DR. PLAC ED WORKER ON LIMITED DUTY (MODIFIED WORK 12/2 - 12/20)

WHILE BACKING UP TRACTOR HE DID NOT WATCH THE FRONNT OF THE MOWER AND A BRANCH HIT HIM IN THE MOUTH. UPPER & LOWER LIPS SPLIT, BROKEN TOOTH.

THE EE HAD HIS BACK TO ANOTHER EE WHO WAS GRINDING. SOME GRINDINGS FLEW INTO THE AIR AND INTO HIS BACKSIDE OF HIS GLASSES AND INTO THE EYE.

WHILE DRAINING GEARBOX LUBE WIND BLEW TARP, INTOCONFINED SPACE RESCUE TRIPOD STANDING BESIDE EE THE TRIPOD FELL & HIT THE EE IN THE BACK

NO INFORMAITON REPORTS OR NOTIFICATIONS ARE AVAILABLE OTHER THAN THE EE'S STATEMENT ON FORM DOL CLAIM #X00365. SUPPORTING DOCUMENTATION IS ATTACHED EE CLAIMS TO HAVE INJ SHOULDER WHEN OPE NING VALVE TO FLUSH LINE

EE HAD BEEN CARRYING A PIECE OF STEEL. THE NEXT DAY EE COMPLAINED OF BACK DISCOMFORT.

EE WAS CUTITNG OFF A LOOSE STRAP ON THE BOTTOM OF A SUPERBAG HE WAS ABOUT TO FILL WITH PRODUCT. HE PULLED THE KNIFE TOWARDS HIM IT SLIPPED AND SLICED HIS LEFT INDEX FINGER.

EE WAS TRYING TO LOOSEN BOTS THAT HOLD WIRE MESH ON METAL FRAME. THE WRENCH HE USED SLIPPED OFF CENTER TENSION ASSEMBLY AND EE HIT HIS RIGHT ELBOW ON METAL FRAME.

WHILE CLOSING THE DOOR TO THE GENERATOR SET (MG SET POND 4), EE SLIPPED WHILE DOOR HANDLE FOLDED ON HIS FINGERS. HIS 4TH FINGER OF RT HAND WAS TRAPPED AND FRACTURED DUE TO THE FALL. THE NAIL R IPPED PARTIALLY OUT OF NAIL SOCKET. EE WAS WEARING GLOVES.

WHILE SWITCHING CHEMICAL CONTAINERS, GOT CHEMICAL ON OVERALLS WHICH SOAKED THROUGH & IRRIATED SKINB. CHEMICAL NOME: ARMAK 1225 - MSDS ATTACHED.

WORKER WAS HELPING A FORKLIF DRIVER TO REMOVE A PUMP FROM A TRUCK VAN. PUMP FELL SIDEWAYS CRUSHING TIP OF FINGER AGAINST VAN WALL.

WORKER WAS HELPING MILLWRIGHT WORK ON EXCAVATOR BY HOLDING COVER PLATE WHILE BOLTS REMOVED. WHILE HOLDING PLATE, REACHING UP AND UNDER, HE PULLED SHOULDER MUSCLES.

MILLWRIGHT REPAIRING PUMP; BELIEVES THAT CHEMICAL RESIDUE ON HANDS GOT IN EYE WHEN HE RUBBED EYEWITH GLOVED HAND, WAS WEARING SAFETY GLASSES. NEXT MORNING LEFT EYE IRRITATION, SENT TO PHYSICIA N & TREATED FOR IRRITATION. RELEASED BACK TO WORK SAME DAY.

WORKER WAS PULLING BAGS OFF CONVEYOR BELT, FROM SIDE INSTEAD OF FROM END AS ISNTRUCTED, ADN STACKIN ON PALLET. HAND WAS CAUGHT IN PINCH POINT AT TRNING ROLLER CAUSING ABRASION WOUND AT LEFT W RIST AND HAND.

NEW MINER UNDERGOING TRAINING ON OPERATION OF GAS POWERED NEED CUTTER. MINER WALKED INTO PATH OF CUTTER LINE CAUSING CUTS ACROSS HANDS AND MIDSECTION, WHILE OBSERVING TRAINER START THE UNIT.

WAREHOUSE WORKER WAS ATTEMPTING TO REPLACE SMALL METAL HOPPER ON WHEEL ASSEMBLY WITH CO-WORKER. ATTEMPTED TO BEND OVER IN CROUCHED POSITION TO LIFT HOPPER. STRAINED LOWER BACK ( AGGRAVATED PRI OR INJURY FROM MOTORCYCLE ACCIDENT WHICH WAS UNKNOWN TO OPERATOR). TREATED WITH MEDICATION AND PLACED ON LIGHT/ RESTRICTED DUTY. RELEASED 1-31-96 BY TREATING PHYSICIAN.

MINER WAS INSTALLING METAL GUARD WITH COWORKER. AS THEY WERE SETTING IT IN PLACE, GUARD SLIPPED AND FELL ON RIGHT HAND OF MINER CUTTING HIS RIGHT RING FINGER. MINER WAS WEARING LEATHER GLOVEWS AT TIME OF INCIDENT PREVENTING FURTHER INJURY.

WORKER SAW DR ON 10-31-95. WORKER TOLD DR THAT INJURY RESULTED FROM FORK LIFT COLLISION IN FEB 1995. NO INJURY HAD BEEN REPORTED BY WORKER OR OBSERVED BY OPERATOR AT THAT TIME. DR DIAGNOSED AS CERVICAL STRAIN, RELEASED SAME DAY FOR REGULAR WORK WITH NO TIME LOSS SUATHORIZED INJURY NOT REPORTED TO OPERATOR UNTIL 10-31-95.

WORKER DROPPED PIECE OF PIPE ONTO METAL PLATFORM AT APPROX. EYE LEVEL. PIPE STRUCK CERAMIC GRINDING MEDIA WHICH FLEW AND STRUCK LEFT EYE. TREATED AND RELEASED BY PHYSICIAN. REPORTED TO SUPERVI SOR ON 2-8-95.

WORKER WAS REMOVING SWING GATE (DOOR) ON EXCAVATOR TO INSPECT HYDRAULIC LINES. HEAVY METAL GATE SWUNG SHUT AND CAUGHT FINGER BETWEEN GATE AND EXCAVATOR. THIS FRACTURED RING FINGER ON LEFT HAND .

WORKER WAS WALKING ACROSS CONCRETE OUTSIDE COURTYARD BETWEEN PROCESS BUILDING & COMPRESSOR ROOM WHEN HE SLIPPED & FELL ON MIXTURE OF WATER & CALCIUM CARBONATE WHICH HAD ACCUMMULATED ON SURFACE AS A RESULT OF RECENT RAINFALL. FELL ONTO RIGHTKNEE WHICH WAS BRUSIED.

EE WAS ATTEMPTING TO CLOSE A VALVE AND REAHCED OVER AN OBJECT IN THE WAY. THIS AWKWARD POSITION CAUSED A STRAIN IN HIS SHOULDER. EE CHOSE NOT TO SEE DR. AND WAS ORDERED TO SEE ONE ON 11-23 WHN E HE COMPLAINED OF PAIN.

WORKER CARRIED COOLER FULL OF LAB SAMPLE WHICH WAS HEAVEY ON 7-1-94 C FRIDAY SOKE UP 7-2-94 SAT IN PAIN ON 7-5-94 SHE WENT TODR AND REPORTED TO SUPERVISOR FOR FIRST TIME. ACCIDENT BECAME REPOR TABLE ON 7-5-94. U

WORKER WAS WALKING ACROSS FLOOR AND TRIPPED OVER PALLET AND PARTS WHICH WERE ON FLOOR NEXT TO SAND GRINDER BEING REPAIRED. STRUCK KNEE RESULTING IN CONTUSION TO RIGHT KNEE. AREA SHOULD HAVE BE EN MARKED OFF WITH CAUTION TAPE. WORKER SHOULD HAVE WATCHED WHERE HE WAS WALKING.

WORKER WAS HOSING OFF MAIN FLOOR IN PROCESS BUILDING AND STEPPED INTO 3"-4" GAP IN GLOOR GRATING. STRAINED FOOT. SENT TO DR. AND INSTRUCTED TO STAY OFF FOOT FOR REMAINDER OF DAY.

WORKER WAS USING CHEATER BAR ON END OF LARGE RACHET TO OPEN RAILCAR NOTCH WHEN IT RECOILED & STRUCK ATGAINST HIS CHEST REPORTED TO SUPERVISOR BUT DIDNT FEEL ANY DAMAGE ON 02-23-94 TOLD SUPERVI SOR HE FELT PAIN & WAS SENT TO DR WHO PRESCRIBEDTYLENOL #3 WORKER EXCEEDED DOSAGE THAT NIGHT & MISSED WORK ON 02-24-94 ACCIDENT BECAME REPORTABLE ON THIS DATE

WORKERS TURNED QUICKLY AND STRUCK ELBOW AGAINST CHICAGO FITTING PIPE ON 11-17-93. HE DID NOT REPORT INCIDENT THINKING IT WAS NOT SERIOUS. ONE MONTH LATER HE STILL FELT PAIN WHEN LIFTING AND RE PORTED TO ME ON 12-15-93. AT THIS TIME ACCIDENT BECAME REPORTABLE TO MSHA. SENT TO DR DIAGNOSED AS TENDONITIS CAUSED BY TRAUMA. WORKER REINSTRUCTED ON ACC. REPORTING POLICY TIMELY.

EMPLOYEE ALLEGES THAT FOR A PERIOD OF APPROX. 4 WEEKS HIS BACK WAS SORE AND FATIGUED FROM PERFORMING JOB DUTIES OF LIFTING AND SHOVELING. FIRST REPROTED TO SUPERVISOR ON 10-25-93 AT WHICH TIME THIS INCIDENT BECOMES REPORTABLE. LUMBAR STRAIN DIAGNOSED BY TREATING PHYSICIAN.

EMPLOYEE WAS TRANSFERING SLURRY PRODUCT FROM TANK IN PLANT TO TANK IN STORAGE YARD. HE FAILED TO OPEN VALVE IN STORAGE TANK PUMP HOUSE (RECEIVEING END). BACK PRESSURE ON PUMP/VALVE CAUSED FILT ER POT GASKET TO RUPTURE SPRAYING HOT SLURRY ON EMPLOYEE AT WAIST..

WORKER WAS CLEANING UP AFTER SHIFT AND BLOWING DUST OFF CLOTHE; WITH COMPRESSED AIR. IN STRAIGHTENING HE STRAINED LOWER BACK. EMPLOYEE WAS REINSTRUCTED AS TO PROHIBITION OF USING COMPRESSED A IR, DANGER SIGHS POSTED AT SITE, DECISION MADE TO INSTALL APPROVED BLOW-OFF STATION, PLANS PROCNIED.