Pollution Merri Creek

evidence of revegetation visible on right-hand bank of river.

in recent decades has been done remedy creek s condition. patches of remnant native flora still remain along creek, , through weed control , ecological burning quality has been improved. native vegetation has been replanted merri creek management committee , volunteer group friends of merri creek. in recent years, melbourne water has been involved in willow control program improve water flows , allow revegetation of sites indigenous plant species. @ times of low flow, water sustained in creek through treated outfall cragieburn sewage treatment plant, [1]. water quality thought have been insufficient allow repopulation platypus. thought because toxicants in sediments in creek have reduced macroinvertebrate productivity point there insufficient food feed population of platypus. toxicants heavy metals , greases originated in industrial areas in catchment. first sighting in decades occurred between thornbury , coburg in sept 2010.