Mining Incidents

Alchemist Mine Group Metal/Non-Metal

Alchemist Mining Group · Underground
Allegheny, Sierra County, CA  ·  Abandoned
MSHA Mine ID: 0405670

MSHA record for Alchemist Mine Group (mine ID 0405670). 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
Inspection activity
MSHA inspections since 2006
1
inspections on record
22
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: 22 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. Alchemist Mining Group 2005 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2006 4
Source: MSHA quarterly employment and production, updated weekly.

Alchemist Mine Group sits in Sierra County, California, where the Census mining category is 0.0% 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.
Sierra County, California · Population 2,731
0.0%
Mining share of county employment
$60,000
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
2006 Q3 427 0 0 0.0
2006 Q2 640 0 0 0.0
2006 Q1 84 0 0 0.0

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.