Yarra Valley Water has this morning issued a water warning for 88 Melbourne suburbs, following “a potential water quality issue” linked to electrical damage caused by storms overnight.

“These power outages have resulted in some water entering our drinking water supply system and customer taps that had not been treated to the usual standard,” Yarra Valley Water said on its website.

“As a precautionary measure, we’re advising residents in those suburbs to boil their water before they drink – residents should bring water to a rolling boil before drinking, washing and preparing food, preparing baby formula, brushing teeth and making ice until further notice.”

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A recent update on the company’s Facebook page reads: “The water comes from closed catchments and has been mixed with disinfected water so the likelihood of any illness being caused is low. But we believe it is better to be safe than sorry.”

“If you have already drunk the water, there is a low risk of potential gastro type of illness. People should contact their GP if this occurs.”

The potentially affected suburbs are:

Attwood
Bayswater
Bayswater North
Blackburn
Blackburn North
Blackburn South
Boronia
Box Hill North
Broadmeadows
Bulleen
Bundoora
Burwood
Burwood East
Campbellfield
Chirnside Park
Coburg North
Coldstream
Coolaroo
Craigieburn
Croydon
Croydon Hills
Croydon North
Croydon South
Dallas
Doncaster
Doncaster East
Donvale
Doreen
Eltham
Epping
Fawkner
Forest Hill
Glen Waverley
Greensborough
Greenvale
Heathmont
Kalorama
Kangaroo Ground
Kilsyth
Kilsyth South
Kingsbury
Lalor
Lilydale
Lower Plenty
Meadow Heights
Melbourne Airport
Mernda
Mill Park
Mitcham
Monbulk
Mont Albert North
Montmorency
Montrose
Mooroolbark
Mount Dandenong
Mount Evelyn
Mount Waverley
North Warrandyte
Nunawading
Olinda
Park Orchards
Plenty
Research
Reservoir
Ringwood
Ringwood East
Ringwood North
Roxburgh Park
Silvan
Somerton
South Morang
Templestowe
Templestowe Lower
The Basin
Thomastown
Vermont
Vermont South
Viewbank
Wantirna
Warrandyte
Warrandyte South
Warranwood
Westmeadows
Wollert
Wonga Park
Yallambie
Yarrambat

Find more drinking-water advice here.