Superfund Site:

SULPHUR BANK MERCURY MINE
CLEARLAKE OAKS, CA

Superfund Site Profile

Site Contacts

Community Involvement Coordinator
Alejandro Diaz
(415) 972-3242

Remedial Project Manager
Lily Tavassoli
(415) 972-3146

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Site Location

Street Address:
SULPHUR BANK ROAD, CLEARLAKE OAKS, CA 95422

Background

The 150-acre Sulphur Bank Mercury Mine site is an abandoned open pit mercury mine located on the shoreline of Clear Lake in Lake County, California. Former mining activities at the site contaminated soils, sediments and surface water with mercury and arsenic. The mine introduced mercury to bottom sediments in Clear Lake, and mercury has bio-concentrated in the food web of Clear Lake. The levels of mercury in fish from the lake led the State to issue an advisory to limit consumption of fish.

The Sulphur Bank Mercury Mine was mined intermittently for sulphur and mercury between 1865 and 1957. Approximately 150 acres of mine ...
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