A fault causing water to pour from a Mosgiel sewage drain into the street is expected to be fixed in the next month, a Dunedin city councillor says.
However, persistent flooding of a nearby industrial area in Gow St will require co-operation between the city council and Otago Regional Council.
The two issues were raised at yesterday's Dunedin City Council meeting by deputy mayor Syd Brown, of Mosgiel.
Cr Brown said there was "real concern" heavy rain had caused wastewater pipes to reverse in Tyne St, Mosgiel, during the last three floods.
Council staff were aware of the problem and were planning repairs, which were expected to take place in the next month, he said.
Across town, the solution to a problem that regularly saw Gow St businesses flooded during major storms was more complicated, with council staff to discuss stormwater capacity issues with the ORC, he said.
Mosgiel Taieri Community Board chairman Barry Barbour said the Tyne St fault appeared to stem from pumps that became overloaded in floods, resulting in stormwater flooding through wastewater pipes.
Heavily diluted wastewater had been seen bubbling out of a vent in Tyne St, but there was no noticeable odour or smell, Mr Barbour said.
"If you didn't know any better you would think it was just stormwater," he said.
The water had not threatened homes, but the fault had occurred in three of the past four years, he said.
Flooding of Gow St premises had been going on "forever", and occurred when creeks in the area rose, he said.
As a result, many of the buildings in the area were without insurance, although the most recent flooding in May was a matter of "centimetres, rather than even inches".
