Lake Bonney testing mixed messages

SA Health has today issued a warning against swimming and diving at Barmera's Lake Bonney, despite testing results from just two days ago showing safe limits across the lake.

On Thursday BBC's Facebook page stated that test results showed the lake was safe, however today SA Health says the most recent samples taken from the lake showed elevated levels of "potentially harmful" blue green algae.

On Wednesday, BBC Mayor Ella Winnall called on the SA government to conduct daily testing of Lake Bonney, currently blocked off from the high river to protect infrastructure under threat, and make them available to the community.

The Murray Pioneer understands the next tests are being done tomorrow with results due on Monday.

Direct contact with the water in Lake Bonney may cause local irritation to the skin, eyes, ears, nose and mouth and accidentally swallowing algae-affected water can lead to illness, SA Health said.

Anyone who has been swimming at Lake Bonney should closely monitor for symptoms – especially in children and pets – including nausea, diarrhoea, vomiting and abdominal cramps.

Pets are particularly vulnerable and should be kept out of the water. Algae may also stick to their fur, giving them a higher exposure.

Fish caught in the lake should be cleaned and gutted thoroughly before being eaten.

SA Health principal water quality adviser Dr David Cunliffe said the lake had been tested regularly since blooms were found last week.

"If you’re up in the Riverland, please don’t swim or dive in Lake Bonney, don’t drink the lake water and keep your pets and kids well clear," he said.

"And if you are exposed, keep an eye on your health. If you start showing symptoms, make sure you get medical help.

"We’re continuing to monitor the lake and test for algae levels, and will work with relevant agencies so that hopefully people can get back in the water soon."

SA Health say people can continue to enjoy boating, fishing, canoeing and rowing on the lake.