Test results received by Council on 13 February 2018 showed the toxins in water were within the safe levels, however the amount of algae remains extremely high and it has the potential to release further toxins at any time.

As a result, Council is taking a precautionary approach by keeping the red alert in place and continuing to monitor the bloom and water toxicity.

Warning signs have been positioned around the waterways and will remain in place until the algae subsides and the toxin levels are safe. The community is reminded that they should avoid all contact with the water and follow the warning signs.

Blue-green algae may cause severe stomach upsets, nausea and skin irritation in both people and animals. If contact with eyes or skin occurs, the area should be washed with clean water as soon as possible.

NSW Healthadvises people who believe they may have been affected by the algae to seek medical treatment.

Blue-green algae occur naturally and can reproduce quickly in favourable conditions where there is still or slow-flowing water, abundant sunlight and sufficient levels of nutrients.

Unfortunately, high temperatures and low rainfall have resulted in several cases of blue-green algae across the Hunter and greater Sydney.

While the conditions at Raymond Terrace are acute, Council has contained the blue-green algae at these two sites. All proactive courses of action have been carefully considered, but unfortunately, none are feasible as all will potentially worsen, prolong or spread the situation to other localities.

Port Stephens Council will continue to monitor the bloom and will further advise the public as the situation changes.

Information updates about blue-green algae blooms and red level warning areas can be obtained from the Regional Algal Coordinating Committee free-call Algal Information Hotline on 1800 999 457 or visit – www.water.nsw.gov.au