"Last year it blew two manhole covers off," he said. "Just before the election they replaced a lot of manhole covers in Te Araroa Drive, but it leaked from the manhole cover again a month ago, and of course sewage then pours out down the road and into the stormwater."
The area does not have a bulk water supply and residents have their own rainwater tanks and septic tanks.
Te Araroa Drive is a steep, bushy area and the sewer runs down through the Lucas Creek Scenic Reserve and under the creek to a pumping station in Greenhithe.
Upper Harbour Local Board member Margaret Miles, also a Paremoremo resident, said she had been lobbying to get the sewer fixed since she was a North Shore city councillor before the Auckland Super City was created in 2010.
"It's been ongoing for years," she said.
Ms Possenniskie said the latest overflow was caused by an electrical fault at the prison's sewerage plant which triggered both pumps into action at full speed.
"This caused a flow of sewage beyond the capacity of the sewerage pipes and resulted in the overflow via the manhole," she said.
"The pumping system was reset shortly on the day of the spill, so the flow of sewage reduced to a capacity the pipes were able to cope with."
