Lake Toolondo

Updated as of 6:00 PM 14 November 2018

From 5 January 2017, past reservoir data for Toolondo Reservoir (since 2010) will be updated to reflect the most current bathymetric survey of the lake bed. This detailed survey indicated a greater depth in some parts of the lake than captured by prior reservoir capacity surveys. As a result, a greater volume will now be reported for Lake Toolondo, which recognises the volume in those deeper parts of the lake.

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 157.810 m AHD
Current Volume 19,720 ML
Percent Full 39%
Current Inflows -170 ML/week
24 hour Rainfall 0 mmCummulative Inflows Graph
Current Releases 0 ML/day
Current Airspace 26,500 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 98,260 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