Tweed's water could turn toxic
WATER authorities fear a scenario where the Tweed's water supply could turn toxic.
Blue green algae has already turned Clarrie Hall Dam toxic and an outbreak at the Bray Park Weir is expected to continue to escalate.
According to Tweed Shire Council water unit manager Anthony Burnham, a warning will probably be issued early next week advising people to refrain from water activities and keep livestock away from the weir pool.
“As of yesterday (Wednesday), we have now got low levels of blue green algae in the Bray Park weir pool,” he said.
“There will be increased monitoring at the weir pool and we will see how quickly the algal bloom progresses. As it reaches higher level, alerts for people using the waterway for fishing, swimming and livestock uses will be issued.
“We have had much worse algae outbreaks in the weir pool in previous years and it is early days right now.”
Council was already preparing to release water from Clarrie Hall Dam into the Tweed River - where the shire's drinking water is sourced.
Mr Burnham said the worst case scenario was that water in the Bray Park weir catchment pool would also turn toxic.
“At this stage there are no real concerns. If the algal bloom does get toxic, further measures would be taken.”
“If things did become toxic we might have to introduce water restrictions so we can slow the rate at the treatment plant so the water can have more time with our processes.”
Meanwhile, Mr Burnham is hoping for rain, which would flush the system out and end the hot, dry conditions in which blue green algae flourishes.