​We've looked at options to reduce the odour which sometimes comes from the Merricks Creek and Estuary, due to the breakdown of seagrass accumulating in the creek. We're supported by the Department of Environment, Land, Water & Planning (DELWP), Southern Rural Water, Mornington Peninsula Shire and members of the local community.

Melbourne Water will continue to closely monitor and manage the estuary to reduce seagrass levels with significant support from local EstuaryWatch volunteers who are regularly monitoring water quality in the estuary.

​What’s happening and when

Outcomes of studies and at the February meeting of the Working Group, it was decided that DELWP undertake works to reinstate lateral groynes in the rock wall to make its characteristics more like the previous wooden wall, by summer 2016. This is likely to encourage the estuary to remain closed and prevent seagrass from entering the estuary. 

Why this project was important

The persistent odour experienced at the estuary is due to hydrogen sulphide or “rotten egg” gas caused by the breakdown of a large amount of seagrass which has accumulated in the estuary. These works will stop further seagrass located on the beach from entering and collecting in the estuary.

Last updated:
14 February 2018