Mining Incidents

Cataract Quarry Metal/Non-Metal

Genstar Cement Company · Facility
Calaveras County, CA  ·  Abandoned
MSHA Mine ID: 0400432

MSHA record for Cataract Quarry (mine ID 0400432). Fatalities, non-fatal incidents grouped by year, current operator and controller, and mine context.

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Fatalities
0
Total incidents
0
Years on record
Latest incident
Ownership history
  1. Flintkote Cement Company 1950 to 1980
  2. Genstar Cement Company 1980 to present
Source: MSHA controller and operator history, updated weekly.

Cataract Quarry sits in Calaveras County, California, where the Census mining category is 0.3% 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.
Calaveras County, California · Population 45,995
0.3%
Mining share of county employment
$79,877
Median household income
Source: US Census Bureau, American Community Survey 2023 5-year estimates.

No reportable incidents on file.

MSHA has no recorded reportable accidents for this mine in the current dataset. New reports appear here within a week of being filed.