The pair of giant water diversion tunnels proposed in the Delta could violate the federal Clean Water Act and increase harm to endangered fish species, according to the U.S. Environmental Protection Agency, which released its formal comment on the project Thursday.
In a 43-page letter sent Tuesday to the National Marine Fisheries Service and released publicly on the EPA’s website Thursday, the EPA said its research found that by diverting freshwater from three new intakes proposed on the Sacramento River – farther upstream from existing intakes – the project is likely to increase concentrations of salinity, mercury, bromide, chloride and selenium.
http://www.sacbee.com/2014/08/28/6662668/epa-says-californias-delta-water.html
Letter:
http://www.epa.gov/region9/nepa/letters/ca/bay-delta-conservation-plan-deis.pdf