Lake Toolondo

Updated as of 2:59 PM 13 January 2021

Blue-green algae detected at Lake Toolondo is above levels considered safe for recreational use.

Toolondo Reservoir is an off-stream reservoir that is supplied from a very small catchment of its own via Mt Talbot Creek. Toolondo Reservoir also stores a large quantity of inaccessible water known as ‘dead water’. Its purpose, post construction of the Wimmera Mallee Pipeline, is for water supply via Taylors Lake. Toolondo Reservoir is reliant on transfers from Rocklands Reservoir and provides high recreational value.

General Information

​The lake is renowned as a trout fishing venue and is also popular with swimmers and water skiers.
There is a private caravan park at this lake.
Toilet facilities are available.
Dogs are not permitted at this lake.

Recreational Activities

​Swimming, water skiing and jet skis are permitted.
Shooting of ducks during duck season is permitted.
Camping is not permitted.

Current Operating Status

Current Level 155.870 m AHD
Current Volume 6,010 ML
Percent Full 12%
Current Inflows -220 ML/week
24 hour Rainfall 0 mmCummulative Inflows Graph
Current Releases 0 ML/day
Current Airspace 40,210 ML


  • Levels have fallen since last report.
  • Inflows to the reservoir have decreased since last report.
  • The reservoir is not currently spilling.


Full Supply Level 164.93 m AHD
Full Supply Volume 98,300 ML
Maximum Operating Level (MOL) 161.01 m AHD
Maximum Operating Volume 50,530 ML
Spillway Volume No spillway m AHD
Outlet Capacity 360 ML/day
Catchment Area 99 km2
Surface Area When Full 14 km2
Major Tributary Mt Talbot Creek
Maximum Depth 11 m
Year Constructed 1953
AHD = Australian Height Datum, expressed in metres above mean sea level
ML = Megalitres