Bacterial growth in lakes
AVOID CONTACT WITH WATER: CITY
A POTENTIALLY harmful bacteria has been found in Lake Hurlingham and Neil McDougall Lake.
Water testing identified two species of cyanobacteria, a blue-green algae that may have appeared due to the recent rains and high nutrient levels in water.
The City of South Perth environmental management team has warned direct contact with the water should be avoided as there could be harmful effects for humans or animals.
Mayor Sue Doherty said the City was monitoring the lakes fortnightly by taking samples and holding visual assessment for algal scum. The assessments will continue until two consecutive allclear results were achieved.
“Storm water runoff contributes to high nutrient load in both Lake Hurlingham and Neil McDougall Lake,” Mrs Doherty said.
“Everyone can work toward reducing excess nutrients and pollution from entering water bodies by using fertilisers in moderation and following the instructions carefully or seeking alternatives, picking up animal droppings from lawns and parks and placing them in bins provided, placing unwanted garden waste in a green waste bin, washing cars, boats or caravans on lawns as opposed to on the street or in the driveway and use phosphorus-free detergents.”
The City has been revegetating Lake Hurlingham’s low embankment areas with nutrient-stripping plant species.
It is also developing a consolidated stormwater management plan that aims to address water quality in the catchment area.
It is expected to be completed in April.