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This project will control erosion and sediment transport at a 4.3-acre abandoned mercury mining site to reduce mercury loads to local streams, the San Francisco Bay, and the South Bay Salt Ponds. In the 1990s, Santa Clara County, under the direction of California Department of Toxic Substance Control, assessed former mercury mining sites at Almaden Quicksilver County Park, and remediated certain sites. Although the Senador mine site was one of the remediated sites, the area continues to add to the mercury load in Guadalupe watershed, which drains to the South Bay Salt Ponds. The County will undertake a variety of erosion control strategies, including regrading and planting, to minimize mercury-laden sediment from entering the watershed as required to implement the Guadalupe River Watershed Mercury TMDL.
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This project is funded by the U.S. Environmental Protection Agency's San Francisco Bay Water Quality Improvement Fund. |
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