GAY MINE SITE
FORT HALL, ID
Superfund Site Profile
Southeast Idaho is home to a large deposit of phosphate called the Meade Peak Phosphatic Shales formation. In the past, and presently, the phosphate ore from this formation has been mined and processed into phosphate fertilizer and elemental phosphorus. The mining process has created releases of high levels of metals contamination, notably selenium, which have resulted in livestock deaths, surface and groundwater contamination, and other environmental effects.
JR Simplot Company and FMC Corporation mined phosphate ore at the Gay Mine on the Fort Hall Indian Reservation from 1946 to 1993. Mining activities resulted in the creation of waste rock dumps, ore ...
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