Mining Incidents

Clay City Mine Metal/Non-Metal

Mutual Materials Co · Surface
Controlled by Mutual Materials Company
Eatonville, Pierce County, WA  ·  Abandoned
MSHA Mine ID: 4501372

MSHA record for Clay City Mine (mine ID 4501372). 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. Mutual Materials Co 2003 to present
Source: MSHA controller and operator history, updated weekly.
Workforce and production
Year Employees
2003 3
Source: MSHA quarterly employment and production, updated weekly.

Clay City Mine sits in Pierce County, Washington, where the Census mining category is 0.1% 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.
Pierce County, Washington · Population 924,106
0.1%
Mining share of county employment
$96,632
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
2003 Q3 101 0 0 0.0
2003 Q2 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.