For the past 15 months, I have been helping residents living near the massive Cadia gold and copper mine in NSW to verify their concerns about pollution from the mine. The findings of alarming levels of heavy metals in their water tanks, as well as in blood and hair samples, prompted the NSW Environmental Protection Agency to investigate. Yesterday it ordered the mine to stop releasing an “unacceptable level” of dust that carries these metals through the air.
The EPA is advising that the water from tanks in the area is safe to drink. This advice is based on the results of NSW Health tests of residents’ kitchen tap water in March 2023. The EPA is also helping to organise water testing for locals, many of whom rely on rainwater tanks for their drinking water.
I remain unconvinced the water is always safe to drink. Metals accumulate in the bottom layers of tanks, so when water levels fall, people could be drinking water with a higher metal content.