Melbourne creek turns bright blue after construction chemicals wash into waterway

Chemicals have turned the waters of Banyule Creek in the Melbourne suburb of Rosanna bright blue. Photograph: Michelle Giovas/Friends of Banyule

A creek in Melbourne’s north-east has turned a lurid blue after chemicals used in construction of a major road project washed into the waterway.

The Environment Protection Authority began investigating after a community member reported blue discoloration in the waters of Banyule Creek, south of Lower Plenty Road in Rosanna, on Wednesday, a spokesperson for the EPA said.