Decisions need to be made soon regarding the Pumpback Well System (PWS) Evaluation Project now underway at the Anaconda Mine cleanup site in Yerington, Nevada. The EPA-approved a one-year shutdown of the PWS in March 2009. The site uses three evaporation ponds: a 3.5-million-gallon clay-lined pond; a 5-million-gallon HDPE-lined pond; and a 10-million-gallon HDPE-lined pond.

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