Mining Incidents

PANTANO: 1 reportable incident Metal/Non-Metal

CalPortland Company · Surface
Controlled by Taiheiyo Cement Corp
Tucson, Pima County, AZ  ·  Abandoned
MSHA Mine ID: 0201608

MSHA record for PANTANO (mine ID 0201608). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
1
Years on record
1992
Latest incident
Feb 1992
Inspection activity
MSHA inspections since 2000
1
inspections on record
2
inspection hours
n/a
citations per 100 inspection hours
This rate is recorded citations divided by MSHA inspection hours, per 100 hours. It reflects inspection effort, not mine size or production.
Rate withheld: 2 inspection hours is too few for a stable rate. A minimum of 1,000 inspection hours is required.
Source: MSHA inspections data, updated weekly.
Ownership history
  1. Arizona Portland Cement Company 1950 to 1984
  2. Arizona Portland Cement Company 1984 to 1990
  3. CalPortland Company 1990 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2001 0
2000 0
Source: MSHA quarterly employment and production, updated weekly.

PANTANO sits in Pima County, Arizona, where the Census mining category is 0.6% 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.
Pima County, Arizona · Population 1,049,947
0.6%
Mining share of county employment
$67,929
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.
Quarterly safety rates
Citations per million reported employee-hours. Rates begin in 2000, when MSHA's quarterly employment data starts; earlier incidents are counted but cannot be rate-adjusted. Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2001 Q2 0 0 0
2001 Q1 0 0 0
2000 Q4 0 0 0
2000 Q3 0 0 0
2000 Q2 0 0 0
No fatalities recorded at this mine.

Reportable incidents

1 on file

1992 · 1 incident

February 26, 1992 AZ · Metal/Non-Metal welder (shop) HANDLING OF MATERIALS
CalPortland Company · Struck by... (Not Elsewhere Classified)

EE WAS GETTING OFF A WORK ELEVATOR CARRYING A PIECE OF STEEL PLATE. ANOTHER EE ALSO CARRYING A PIECE OF PLATE, BUMPED INTO HIS ELBOW WITH THE PLATE. DID NOT SEEM TO WARRANT MEDICAL ATTENTION A T THE TIME. ON 3-9-92 EE STILL FELT PAIN SO WENTTO DR. NO TIME LOST.