Keep track of reservoir levels and water use information here.
The Western Water region has two main water storages, Rosslynne Reservoir and Merrimu Reservoir, both of which are managed by Southern Rural Water. These reservoirs supply the Melton and Bacchus Marsh (Merrimu) and Macedon Ranges and Sunbury (Rosslynne) districts.
Western Water manages a number of smaller reservoirs in and around the Macedon Ranges. The region is also connected to the Melbourne water supply which can be used when local supplies are low.
Local reservoir levels
This graph displays combined water levels in local reservoirs. For individual reservoirs please click on the tabs below.
Average residential water use (litres per person per day)
Garden Hut Reservoir & Lancefield Service Basin (Lancefield)
Campase Reservoir, Graham Brock Reservoir and Reservoir C (Woodend)
Kerrie Reservoir and Glenfern Basin (Romsey)
Pykes Creek Reservoir
Surcharging and pre-release policy
Western Water’s surcharge and pre-release infrastructure associated with its water storage dams and reservoirs is very limited, and as such Western Water is not in a position to undertake any surcharge or pre-release prior to flood events.
Western Water’s storages are equipped with spillways which allow flood waters to spill from the storage if it is at full capacity. Western Water will monitor storages during and post flood events and will respond as required.
Annual Water Outlooks
Annual Water Outlooks are issued annually based on information available in November. They include an update on the status of our water supply systems and forecast the expected performance for the year ahead.
Western Water monitors actual performance of its water supplies during the year due to the variable nature of rainfall in the region.
Lancefield - Annual Water Outlook135KB
Merrimu - Annual Water Outlook69KB
Romsey - Annual Water Outlook72KB
Rosslynne - Annual Water Outlook74KB
Woodend - Annual Water Outlook88KB