Mining Incidents

50c Portable: 4 reportable incidents Metal/Non-Metal

Sunward Materials · Surface
Controlled by Cemex S A
Maricopa County, AZ  ·  Abandoned
MSHA Mine ID: 0202540

MSHA record for 50c Portable (mine ID 0202540). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
4
Years on record
1991
Latest incident
Jul 1991
Ownership history
  1. Sunward Materials 1990 to present
Source: MSHA controller and operator history, updated weekly.

50c Portable sits in Maricopa County, Arizona, where the Census mining category is 0.2% of county employment.

Local economic context
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.
Maricopa County, Arizona · Population 4,491,987
0.2%
Mining share of county employment
$85,518
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
No fatalities recorded at this mine.

Reportable incidents

4 on file

1991 · 4 incidents

July 30, 1991 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman POWERED HAULAGE
Sunward Materials · Struck by... (Not Elsewhere Classified)

FALLING ROCK STRUCK EE ON LEFT SHOULDER ROCK CAME FROM THE JAW SCREW.

July 12, 1991 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDTOOLS (NONPOWERED)
Sunward Materials · Struck by... (Not Elsewhere Classified)

EMPLOYEE WAS SHOVELING AROUND TAIL PULLEY, HIT ROCK WITH R. KNEE.

April 24, 1991 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman HANDLING OF MATERIALS
Sunward Materials · Over-exertion (Not Elsewhere Classified)

EE WAS DIGGING OUT THE TAILPULLEY WHEN HE FELT A SHARP PAIN IN HIS BACK.

March 28, 1991 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Sunward Materials · Over-exertion in pulling or pushing objects

EMPLOYEE WAS PUSHING A WHEEL BORROW WHEN HE SLIPPED ON MUD AND PULLED LEFT SIDE BACK MUSCLE.