Murrumbidgee River blue-green algae alert downgraded

$<p>RIVER HEALTH: WaterNSW has downgraded a precautionary red alert warning for high levels of algae in the Murrumbidgee River from downstream of Tantangara Reservoir to the ACT border. PHOTO: Nathan Thompson</p>\\n$

RIVER HEALTH: WaterNSW has downgraded a precautionary red alert warning for high levels of algae in the Murrumbidgee River from downstream of Tantangara Reservoir to the ACT border. PHOTO: Nathan Thompson

WaterNSW has downgraded a precautionary red alert warning for high levels of algae in the Murrumbidgee River.

Monaro Post

March 31, 2026 • 07:38

Updated, March 31, 2026 • 07:38

PHOTO

WaterNSW has downgraded a precautionary red alert warning for high levels of algae in the Murrumbidgee River from downstream of Tantangara Reservoir to the ACT border.

The downgraded alert is based on sampling data, satellite imagery and visual observations and follows a public alert issued on 12 and 19 March. The alert level is now at amber alert.

WaterNSW is advising the public to continue to exercise caution in the area, especially where the bloom is evident.

The advice applies only to untreated water within this part of the river and will remain in place until monitoring confirms that the risk is sufficiently diminished.