The Queenstown Lakes District Council says it is ''highly unlikely'' Kelvin Heights or Frankton residents became sick after sewage spilled into Lake Wakatipu 10 days ago.
A precautionary boil water notice was lifted on Monday at 3pm after three tests conducted 18 hours apart showed drinking water from the Kelvin Heights reservoir was uncontaminated, council communications manager Meaghan Miller said.
''Council has received one call from the public complaining that the water had made them sick.
"On investigation, it was identified that the address was not within the Kelvin Heights reservoir supply area and was not subject to a boil water notice.
"While we are naturally sympathetic that anyone is experiencing an illness, it is highly unlikely to have been caused by the water supply,'' she said.
Ms Miller was responding to concerns brought to the Otago Daily Times by a person who said many Kelvin Heights residents had become sick and the council had done a poor job of the notifying the public.
She said that after the spill, the Frankton and Kelvin Heights residents' associations were phoned, warnings were posted hourly on all local radio stations, a media advisory was posted, newspapers were regularly updated and social media sites were used.
