Mining Incidents

Riverton Acid Plant Metal/Non-Metal

Western Nuclear Inc · Facility
Controlled by Phelps Dodge Corp
Fremont County, WY  ·  Abandoned
MSHA Mine ID: 4801040

MSHA record for Riverton Acid Plant (mine ID 4801040). 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. Western Nuclear Inc 1950 to present
Source: MSHA controller and operator history, updated weekly.

Riverton Acid Plant sits in Fremont County, Wyoming, where the Census mining category is 3.1% 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.
Fremont County, Wyoming · Population 39,472
3.1%
Mining share of county employment
$64,646
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.