Mining Incidents

Pit #1 43rd AveMetal/Nonmetal

Controlled by Summit Materials LLC
Maricopa, Maricopa County, AZ · Active
MSHA Mine ID: 0202867
Fatalities
1
Total incidents
7
Years on record
2000–2026
Latest incident
Apr 2026

Fatalities at this mine

1 recorded
Contact with hot objects or substances

THE INJURED EMPLOYEE WAS REMOVING EXCESS AMTERIAL AT THE STOCK PILE AREA WITH A FRONT END LOADER. HE STRUCK A NATURAL GAS LINE CAUSING IT TO ERUPT INTO FLAMES CAUSING SERIOUS INJURIES. THE P IPELINE WAS UNEXPECTEDLY AT A VERY SHALLOW DEPTH, AND THE VICTIM INADVERTENTLY DUG BELOW THE SURFACE LEVEL. THE ACCIDENT DID NOT INVOLVE ANY COMPLIANCE ISSUES, MINER SKILLS, ATTITUDE, OR TRAI

Reportable incidents

6 on file (excluding fatalities above)

2026 · 2 incidents

Struck by... (Not Elsewhere Classified)

EE was changing screens at the washplant and was cutting a piece of rubber using a utility knife. During the cutting motion the knife slipped past the rubber and stabbed the EEs thumb.

Over-exertion (Not Elsewhere Classified)

While cleaning in the wash plant tunnel, employee slipped on aggregate material on the floor and hurt EE's knee. EE requested to be evaluated at the occupational clinic where they prescribed restrictions along with medication for the knee injury.

2025 · 1 incident

Struck against a moving object

EE was using water truck to wet down area when loader operator who was back dragging roads backed into the water truck EE's chest struck the steering wheel. EE has some strained muscles in chest.

2021 · 1 incident

Fall to the walkway or working surface

The miner lost consciousness for an unknown health related reason and fell injuring EE's back.

2014 · 1 incident

Fall from ladders

Fall from the 3rd rung on a 6 foot ladder. Ladder was placed on an uneven surface and had an improper hinge repair.

2013 · 1 incident

Fall to lower level, (Not Elsewhere Classified)

Just got done replacing a screen and went to step down onto the catwalk (approx 1ft step down) and fell onto the catwalk. Diagnosis is contusion of right elbow, and back strain. He was released for regular duty for 6/5/2013, had checkup 6/6/2013 and was put on light duty.