WATER supply addresses at Mount Cotton will be interrupted later this month when Seqwater undertakes overnight inspections of a 50-year-old pipeline.
Macleay, Lamb and Karragarra islands will also experience water supply disruptions when pipeline upgrades are undertaken overnight on June 1, following pipeline bursts earlier this month.
Seqwater chief executive Neil Brennan said residents were being warned early to help them prepare for the planned water outages.
"We understand having temporary water supply interruptions is not easy and appreciate the understanding and patience of locals as this vital work is carried out," he said.
Woodlands Drive, between Taylor and Mount Cotton roads at Mount Cotton, will be impacted on Tuesday, May 28 from 9pm to 5am the next day.
Planned water supply outages will then affect Mount Cotton Road, between Woodlands Drive and Double Jump Road, Karingal, Mount View and Krause roads on Wednesday, May 29 from 9pm to 5am the next day.
Water interruptions to Mount Cotton State School, part of Sanctuary Drive and Darwalla Golden Egg Productions will be experienced on Thursday, May 30 from 9pm to 5am the next day.
A Seqwater spokesperson said inspections of the old pipeline, which ran between Alexandra Hills Reserviour and Heinemann Road Reservoir at Mount Cotton, would enable pipe replacement works to be prioritised.
Two sections of the pipeline had already been replaced in May, the spokesperson said.
The spokesperson said residents at Karragarra, Lamb and Macleay islands would be affected by overnight water supply interruptions from 8pm on Saturday, June 1 to about 8am the next day.
"The project follows pipeline bursts on Karragarra Island which resulted in unplanned water supply disruptions on those three islands," the spokesperson said.
"The upgrade work will reduce the risk of water supply disruptions in the future.
"To complete this essential work, Seqwater must temporarily turn off some pipelines.
"Residents on the three islands will have low or no water supply for up to 12 hours from 8pm on Saturday, June 1.
Seqwater was also dropping notices into letterboxes of affected properties, the spokesperson said.
Sign up for our newsletter to stay up to date.