Mining Incidents

Treasure Canyon Mill #2 Metal/Non-Metal

Controlled by Brenda Moosman
Preston, Franklin County, ID  ·  Active
MSHA Mine ID: 1001357

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Email me when a new MSHA incident is filed at Treasure Canyon Mill #2.

Fatalities
0
Total incidents
21
Years on record
2001–2025
Latest incident
Dec 2025
Compliance record
MSHA citations since 2000
95
citations
16
significant & substantial
$18,673
proposed penalties
$17,279
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 7,326 6 2 819.0
2025 Q3 8,068 0 0 0.0
2025 Q2 8,313 4 0 481.2
2025 Q1 8,761 0 0 0.0
2024 Q4 7,543 4 0 530.3
2024 Q3 6,203 4 0 644.8
2024 Q2 7,194 0 0 0.0
2024 Q1 8,076 9 0 1114.4
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

21 on file

2025 · 1 incident

December 6, 2025 ID · Metal/Non-Metal ball/rod/pebble/hand/limestone/dry mill operator, roller operator HANDLING OF MATERIALS
Treasure Canyon Calcium Co Inc · Over-exertion in lifting objects

No unsafe conditions were present. Employee was doing basic clean up and back became painful after shoveling.

2024 · 1 incident

September 18, 2024 ID · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver STEPPING OR KNEELING ON OBJECT
Treasure Canyon Calcium Co Inc · Over-exertion (Not Elsewhere Classified)

Employee was stepping out of a semi on to the ground felt a sharp pain in their knee

2021 · 1 incident

October 28, 2021 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co Inc · Struck by... (Not Elsewhere Classified)

Two employees were cutting open a tote from each side so they could empty the product out of it. They were cutting towards each other without realizing it. As the one pulled the knife out of the tote it nicked the top of the other's left hand. IE received 3 stitches. IE was able to return to work immediately and has no work restrictions from the Dr.

2019 · 1 incident

December 26, 2019 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Treasure Canyon Calcium Co Inc · Struck against stationary object

Employee was cleaning a glass cup that chipped at the top of the glass. EE received a cut on the thumb that required three stitches.

2018 · 3 incidents

December 12, 2018 ID · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Treasure Canyon Calcium Co Inc · Bodily reaction, (Not Elsewhere Classified)

Employee was taking a break when EE went to stand up and put pressure on EE's leg had a bad pain in EE's knee that also hurt when EE tried to straighten EE's knee. EE had no other accidents or problems prior to getting out of EE's chair. Was told not to put weight on EE's leg until received a MRI to see what was the problem. Today was told EE has a torn meniscus.

January 30, 2018 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Treasure Canyon Calcium Co Inc · Struck by falling object

While changing the drill bit on a magnetic drill press, the spindle of the drill press dropped suddenly pushing the drill bit through the pad of the miner's ring finger on right hand puncturing it. Three stitches from a doctor in the local clinic were used to close the wound.

January 29, 2018 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co Inc · Struck by flying object

While splitting firewood using a wedge and sledge hammer, a piece of the wedge broke off and struck the miner in the leg. Later, it was found that a piece of the wedge had penetrated the skin of the miner's leg. The metal piece was removed by a doctor in the doctor's clinic.

2014 · 2 incidents

November 11, 2014 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator MACHINERY
Treasure Canyon Calcium Co Inc · Struck by... (Not Elsewhere Classified)

Miner was unrolling tarp on a bulk commodity trailer to load it. The tarp rolling mechanism slipped from his hand causing the tarp to roll backward causing the mechanism to strike the miner in the head throwing his head backward causing his tooth to chip and causing a cut on his head.

September 11, 2014 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co Inc · Fall to the walkway or working surface

While using an end wrench to loosen a bolt, the bolt gave way suddenly causing the miner to lose his balance which caused him to fall down landing on his knee. His knee was cut and bruised. On 9-15-14 the miner learned that the cuts had become infected. He is taking antibiotics to treat infection.

2013 · 1 incident

August 2, 2013 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co Inc · Caught in, under or between a moving and a stationary object

Mill supervisor was adjusting position of electric motor using a pry bar to lift the motor to remove shims from under the motor mounting feet. He used his finger to remove one of the shims. The motor slipped and his left hand index finger tip was caught underneath the motor mount foot. The finger nail was broken, the finger tip was cut and he received two stitches.

2010 · 3 incidents

November 13, 2010 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co Inc · Over-exertion in pulling or pushing objects

Miner was pulling on the rope that raises the loading spout used to load trucks from over head bins when he felt a "rip" or a "burn" in his right side of his abdomen. He was diag. as having a hernia. EE is still working but may have to have surgery.

October 24, 2010 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDLING OF MATERIALS
Treasure Canyon Calcium Co Inc · Caught in, under or between running or meshing objects

EE went to check the pipe from a baghouse dust collector pipe to check if material was falling through the pipe. EE placed his hand inside the pipe and slipped while reaching for a flashlight causing his hand to go up into the pipe contacting the rotary airlock device.

September 28, 2010 ID · Metal/Non-Metal haul/off road/coal/ore/pit/quarry/rock/rubber tire truck driver, transportation truck driver OTHER
Treasure Canyon Calcium Co Inc · Bodily reaction, (Not Elsewhere Classified)

While walking to his locker to put his hard hat away after his shift the miner heard a popping sound and his left foot began to hurt. Miner is still able to perform his duties we are reporting this injury in case his condition worsens.

2009 · 2 incidents

November 27, 2009 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator IGNITION OR EXPLOSION OF GAS OR DUST
Treasure Canyon Calcium Co Inc · Contact with hot objects or substances

While lighting a used oil furnace to heat the shop, a flash of fire occurred which caused 1st degree burns to the face (no damage to eyes or lungs) and 2nd degree burns to the right hand. Victim was taken to the emergency room, treated, and released to go home.

February 11, 2009 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Treasure Canyon Calcium Co Inc · Fall to the walkway or working surface

The injured miner was walkin goutside on snow, following behind another miner who was also walking. The injured miner apparently slipped on some snow covered ice, which caused him to fall, twisting his left leg and landing on his right elbow.

2008 · 1 incident

January 19, 2008 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON
Treasure Canyon Calcium Co Inc · Fall to the walkway or working surface

The miner was walking on snow-covered ground. He slipped on ice covered in snow and fell on his right hip. He reported the accident when he decided to go to the doctor on 1-29-08. The doctor said that the injury was a bruise & strained ligament. Three months later the miner still had pain in the hip. He visited another doctor who diagnosed a hernia.

2007 · 1 incident

February 21, 2007 ID · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator HANDTOOLS (NONPOWERED)
Treasure Canyon Calcium Co Inc · Over-exertion (Not Elsewhere Classified)

While prying on a bearing on the rock dryer fan with a pry bar, the bearing broke loose. Trying to regain his balance, his left knee was twisted causing pain. The pain persisted for 2 wks., at which time he reported to his employer.

2004 · 2 incidents

September 13, 2004 ID · Metal/Non-Metal ledgeman/hand, quarry man HANDLING OF MATERIALS
Treasure Canyon Calcium Co Inc · Over-exertion (Not Elsewhere Classified)

While lifting a five gallon bucket filled with sand, the victim turned to walk. As he attempted to pivot his body on his left foot and ground, his knee pivoted instead causing the knee cap to dislocate and causing pain.

January 2, 2004 ID · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Treasure Canyon Calcium Co Inc · Fall from machine

THE INJURED WAS REMOVING SNOW FROM THE MILL YARD. HE EXITED THE FRONT END LOADER TO OPEN A GATE.UPON STEPPING OFF THE LOADER HE SLIPPED ON SOME ICE ON THE GROUND AND FELL ON HIS BACK. HE MISSED NO DAYS OF WORK. A FEW WEEKS AFTER THE INCIDENT HE HAD HIS BACK X-RAYED. NO INJURIES WERE FOUND. THE DAMAGE IS THEREFORE DETERMINED TO BE MINIMAL.

2002 · 1 incident

2001 · 1 incident

February 13, 2001 ID · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech MACHINERY
Treasure Canyon Calcium Co Inc · Struck by... (Not Elsewhere Classified)

WHILE USING A FLOOR MOUNTED GRINDING WHEEL, THE EE'S SAFETY GLASSES SLIPPED DOWN HIS NOSE, EXPOSING HIS EYES TO METAL FILINGS. A METAL FILING STRUCK HIS LEFT EYE.