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Pit #1 43rd Ave Metal/Non-Metal

Arizona Materials · Surface

Controlled by Summit Materials LLC

Maricopa, Maricopa County, AZ · Active

MSHA Mine ID: 0202867

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Email me when a new MSHA incident is filed at Pit #1 43rd Ave.

Fatalities: 1
Total incidents: 7
Years on record: 2000–2026
Latest incident: Apr 2026

Compliance record

MSHA citations since 2000

310

citations

significant & substantial

$175,050

proposed penalties

$95,840

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	16,627	0	0	0.0
2025 Q3	494	11	3	22267.2
2025 Q2	379	0	0	0.0
2024 Q4	11,235	4	2	356.0
2024 Q3	11,274	0	0	0.0
2024 Q2	15	0	0	0.0
2024 Q1	36	0	0	0.0
2023 Q3	9,976	0	0	0.0

Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded

July 21, 2000 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator Fatality · EXPLODING VESSELS UNDER PRESSURE

Rockland Materials · 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

April 13, 2026 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)

Arizona Materials · 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.

March 31, 2026 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON

Arizona Materials · 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

January 14, 2025 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE

Arizona Materials · 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

December 17, 2021 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON

Arizona Materials LLC · 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

February 19, 2014 AZ · Metal/Non-Metal building repair man, maintenance SLIP OR FALL OF PERSON

Arizona Materials LLC · 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

June 4, 2013 AZ · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech SLIP OR FALL OF PERSON

Arizona Materials LLC · 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.