Grevillea Beach (East Basin)

Water Quality Questions? Visit the LBG Water Quality Information Page

WATER QUALITY INFORMATION

This area is CLOSED TO PRIMARY CONTACT RECREATION due to extreme levels of blue green algae.

Swimming, diving, bathing, novice Secondary Contact Recreation, and windsurfing are currently not permitted.

While this area remains Open to Secondary Contact recreation (sailing, canoeing, rowing etc), persons should be careful to limit any water exposure and should shower after contact with the water.

There is an increased risk of adverse health events from water exposure. Symptoms of exposure may include skin/mucosa irritation, flu-like symptoms, and gastrointestinal illness.

People should not engage in Secondary Contact recreation unless:
*they are experienced;
*they are informed of the algal risks and what to do if contact occurs;
*they do not engage in primary-contact during the recreation; and
* they have access to showing facilities to use immediately after exiting the water.
Event organisers should ensure that participants are aware of the blue-green algae alert level, associated exposure risks and provide adequate showering facilities for after events.
Water users should look for algae warnings signs indicating the current alert level at major water entry points.

Current water temperature: 21.5 degrees

SITE INFORMATION
Grevillea Beach, East Basin on the northern shore of Lake Burley Griffin, is a long open beach popular with water craft recreation activities. There is a dragonboat course and this is the location of the Capital Lakes Rowing Club.

Grevillea Beach offers a boat ramp and ample parking and is close to the Jerrabomberra Wetlands and the Molonglo River. Exposed to strong winds, East Basin is popular with windsurfing.

Grevillea Beach is 15 minutes from the city centre of Canberra.

*STANDING BACTERIA ALERT*
Swimming should be avoided for several days after heavy rainfall as bacterial levels are strongly affected by such events.

WATER QUALITY

Passed water quality tests 60-95% of the time
Historical Status
This status is based on the latest sample, taken on February 11th, 2019. National Capital Authority updates the status of this beach as soon as test results become available. These results were posted to Swim Guide on at

For water quality icon legend, click:

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MONITORING FREQUENCY

SOURCE INFORMATION

During the recreational season (mid October to mid April) Enterococci and blue green algae (cyanobacteria) are monitored to advise on the suitability of the water quality for recreational purposes (Primary Contact Recreation: swimming, bathing, novice secondary, and Secondary Contact Recreation: sailing, rowing, kayaks etc).

Sites are monitored weekly during the Recreational Season. The Recreational Season runs from 2nd Monday in October to 2nd Monday in April. Samples are collected Mondays (or Tuesdays if Monday is a public holiday).

Beaches are given a red (pass) if they exceed either of the following protective criteria:
Enterococci: 200 cfu/100mL

Cyanobacteria: 20,000 Indicative Microcystis aeruginosa algae cells/ml (Medium alert)

Additional warnings are issued when cyanobacteria level reach high (≥50,000 cells/ml) or extreme ( ≥125,000 cells/ml) levels.

The NCA updates the Lake Burley Griffin Water Quality website (www.nca.gov.au) each week with water quality data. Further user advice and information about lake closures and health alerts can also be found at
https://www.nca.gov.au/publication/lake-burley-griffin-water-quality-management-plan-2011/lake-water-quality-updates

Follow the NCA on Twitter: @nca_media and Facebook: @NCA.gov for current water quality information.

Water Quality Advisory signs are at all recreational areas.

WATER QUALITY GRAPH