Bacteria warning for Moore River in Guilderton

People are advised to temporarily avoid swimming and all other direct water contact activities in the Moore River at Guilderton. Picture: Anita McInnes

THE Shire of Gingin and the Department of Health are warning people about elevated bacteria levels at Moore River in Guilderton following recent sampling results.

Exposure to these levels of bacteria may have the potential to increase the risk of people experiencing gastrointestinal, respiratory, skin, ear, eye and throat illnesses and infections if people swim in or accidently ingest the water.

Anyone who has entered these waters and experiencing symptoms including nausea, vomiting, diarrhoea, abdominal, chest pain etc, should seek medical attention and notify the Department of Health’s environmental health directorate on 9222 2000 (during office hours) or email:

Shire of Gingin chief executive officer Aaron Cook said Department of Health warning signs had been temporarily displayed around the Moore River caravan park and river mouth area.

He said the signs would remain in place until the all-clear had been advised. I

In the meantime, people are advised to avoid swimming and all other direct water contact activities.

The Shire of Gingin will continue to monitor microbial water quality and liaise with the Department of Health regarding the situation.

Moore River is part of a broader agricultural catchment area and downstream river flow can bring nutrients, organic matter, sediments, and animal faeces and waste.

Further information regarding water quality and tips for healthy swimming is available on the Department of Health website at