Mining Incidents

Chino Pit Metal/Non-Metal

Controlled by Arthur C Mc Mains
Mesa, Yavapai County, AZ  ·  Active
MSHA Mine ID: 0202913

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Fatalities
0
Total incidents
5
Years on record
2006–2022
Latest incident
Aug 2022
Compliance record
MSHA citations since 2000
149
citations
43
significant & substantial
$31,559
proposed penalties
$23,709
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 4,897 0 0 0.0
2025 Q3 5,026 0 0 0.0
2025 Q2 4,652 0 0 0.0
2025 Q1 4,764 0 0 0.0
2024 Q4 4,520 0 0 0.0
2024 Q3 4,628 0 0 0.0
2024 Q2 4,924 0 0 0.0
2024 Q1 4,142 1 0 241.4
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

5 on file

2022 · 1 incident

August 16, 2022 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer HANDLING OF MATERIALS
Arrowhead Mining & Materials LLC · Struck by... (Not Elsewhere Classified)

Changing cutting edge bolt on 966K loader, fully gloved when bolt head spun and cut through glove therefore causing a laceration to the left thumb pad. Required nine stitches.

2015 · 1 incident

July 8, 2015 AZ · Metal/Non-Metal mine manager, mine foreman, mine owner HANDTOOLS (NONPOWERED)
Arrowhead Mining & Materials LLC · Over-exertion in wielding or throwing objects

The aggravation of a pre existing injury to upper right arm. This was noticed when swinging a hammer.

2009 · 1 incident

February 6, 2009 AZ · Metal/Non-Metal bulldozer operator, universal operator, heavy equipment operator, operating engineer OTHER
Arrowhead Materials · Unclassified, insufficient data

Employee complained of slight pain or discomfort in Left Wrist, did not know of any work contributing factors at that time. Employee was treated at Prescott Valley Primary and Urgent care with no confirmed diagnosis.

2008 · 1 incident

August 20, 2008 AZ · Metal/Non-Metal clerk, timekeeper, office worker, director of sales HANDLING OF MATERIALS
Arrowhead Materials · Absorption of radiations, caustics, toxic and noxious substances

While removing trash bags from an elevated shelf in the office restroom, employee also pulled down a container of AjAx powdered cleaner with bleach. The container upended and emptied a portion of its contents onto her head, face, and in her eyes.

2006 · 1 incident

October 5, 2006 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman MACHINERY
Arrowhead Mining & Materials LLC · Caught in, under or between a moving and a stationary object

While backing up, he got his thumb caught between ROPS and guard on conveyor belt. Plant was not in operation.