Blue-green algal red alert lifted for Lake Pamamaroo outlet

The Lake Pamamaroo outlet is now on amber alert for blue-green algae. This advice should not be confused with the red alert issued for the storage of Lake Pamamaroo, which remains in place.

While on an amber alert, the water at the outlet is generally considered to be suitable for water sports, but water users are advised to exercise caution. It is also advised not to drink untreated or boiled water from the dam due to the risk of stomach upsets.

Boiling the water does not remove algal toxins. The water should still be considered unsuitable for potable use and alternative supplies or prior treatment of raw water for domestic purposes should be considered.

As algal numbers can change dramatically with changes in conditions, water users should avoid water which is discoloured or gives off an earthy or musky odour.

Water users should use discretion at all times before entering a water body and be aware that the algal situation can change quickly. WaterNSW will continue routine water quality monitoring and advise of any change as new results are received.

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.

Blue-green algae usually appear as green paint-like scums on the water, near the edges, or as greenish clumps throughout the water. It makes the water appear dirty, green or discoloured and generally has a strong odour.

Updates and information about blue-green algae blooms and Red Alert warning areas can be obtained by calling 1300 662 077 or visiting – http://www.waternsw.com.au/water-quality/algae