ABC Report: Toxic water from old mine entering Sydney's drinking catchment, research warns

http://www.abc.net.au/news/2017-08-21/toxic-water-entering-sydneys-drinking-catchment-warning/8824650

KEY REPORT FINDINGS

• "Median concentrations of nickel (430 ug/L), manganese (12667 ug/L) and zinc (1400 ug/L) are at extremely high levels

• 89% of aquatic insects sampled in the vicinity of discharge have been wiped out (Ephemeropetera, Plecoptera and Trichoptera species)

• Overall pollution has increased despite the mine's closure in 2013

• Other contaminants include high levels of acidity, salinity, iron and sulfates."