High Risk ⚠ Superfund / Contamination Site  ·  Idaho

Bunker Hill Mining Superfund ID

CRITICAL INFRASTRUCTURE RISK PROFILE  ·  IDAHO

8 / 10
Risk Score
Facility Type
⚠ Superfund / Contamination Site
Primary Risk Radius
5
mile zone
Secondary Risk Radius
25
mile zone

// Risk Intelligence

Risk Score8 / 10   High
Facility Type⚠ Superfund / Contamination Site
Operator / BranchBunker Hill / EPA
Host CountyShoshone County ID
Nearest CityPepperell MA
Primary Risk Radius5 miles
Secondary Risk Radius25 miles

// Strategic Significance

The Bunker Hill Mining and Metallurgical Complex in the Silver Valley of Idaho is the second largest Superfund site in the US covering 1,500 square miles. Lead zinc and silver mining operations deposited lead throughout the Coeur dAlene River basin. Blood lead levels in Kellogg area children were among the highest ever recorded in the US in the 1970s. The site is also called the Silver Valley Superfund.

// Civilian Impact Assessment

Shoshone County and the broader Silver Valley communities face ongoing lead exposure from contaminated soil and the Coeur dAlene River and Lake. Kellogg area children historically had blood lead levels causing neurological damage.

// Evacuation & Shelter Guidance

Shoshone County residents should follow EPA guidance on soil contact restrictions and Coeur dAlene Lake use advisories. Children should be tested for blood lead levels.

// Counties Within Risk Zone