Significant environmental risks to groundwater supplies exist with mining practices. Even though mining practices have improved over the years, negative impacts on groundwater supply can derive from sources such as sedimentation during exploration from poorly constructed roads, contamination through mine construction, and waste rock and tailings disposal. As mining technologies improve there will be more handling of rock and ore material, which indicates potentially more waste will be generated. BESST has found success in providing guidance and recommendations on maximizing production and reducing further contamination for various mines.


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50 Tiburon St, Suite 7
San Rafael, CA 94901

Office: (415) 453-2501
Leslie Emmens
Main Office
(415) 453-2501 ext. 101
Noah Heller, MS, PG
(415) 302-7354
Miles Koehler
Inside Sales and Technical Info
(510) 414-9984
James Tsumura
Outside Sales
(626) 512-3715

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