Lake Burley Griffin Water Quality Update

Media type
Date of Publication
21 March 2019
Revised Date
21 March 2019


The National Capital Authority (NCA) wishes to advise that Weston Park East, Lake Burley Griffin is closed to primary contact due to Extreme levels of blue green algae.

Primary contact recreation includes activities which involve full immersion such as swimming, bathing, novice secondary contact recreation, or activities which pose a greater risk of swallowing water or having the face wet by spray (e.g windsurfing). These activities are not permitted at sites closed to primary contact.

The most recent water quality samples report that all other recreational areas are open to both primary and secondary contact.

The ACT Guidelines for Recreational Water Quality explain that Extreme blue green algae levels, can cause a range of health issues. Secondary contact recreation such as rowing, fishing, boating and canoeing will still be permitted, noting ACT Health's advice below:

• there is an increased risk of adverse health events from water exposure for secondary contact recreation;

• symptoms of exposure may include skin/mucosa irritation, flu-like symptoms, and gastrointestinal illness;

• people should not engage in secondary contact recreation unless:

o they are experienced;

o they are informed of the algal risks and what to do if contact occurs;

o they do not engage in primary-contact during the recreation; and

o showering facilities, with suitable water, are available for washing after the activity.

• event organisers should ensure that participants are aware of the blue green algae alert level, associated exposure risks and provide adequate showering facilities after events.

Weston Park East will remain closed to primary contact until blue green algae levels have reduced to safe levels. Only experienced Lake users can participate in secondary contact recreation activities, such as sailing, canoeing and rowing.

Persons engaged in secondary contact recreation in this area should be careful to limit any water exposure and should shower immediately after contact with the water.

Lake user groups and relevant event organisers have been notified. All Lake users should look for warning signs indicating the current alert level at our beaches or refer to the Swim Guide. Pet owners should not allow their animals to swim in or drink Lake water in areas where there are algal scums.

The NCA will continue to monitor lake water quality as per standard protocols with samples collected weekly. The NCA will provide further information over the coming weeks in response to changing conditions. Under the ACT Guidelines for Recreational Water Quality, two consecutive clear results must be received before lowering or removing alerts.

For explanations of alert levels and water monitoring protocols visit

For up to date Lake Burley Griffin water quality information, restrictions, alerts and health warnings visit

For more information on the ACT Guidelines for Recreational Water Quality visit


MEDIA CONTACT: Sophie Rogers | National Capital Authority | ( (02) 6271 2884 | ( 0427 831 908