An overnight storm in Wellington caused wastewater pipes to block, flooding five homes in the suburb of Island Bay with faeces and sanitary products on June 5, 2026 [1, 2, 3]. The storm dumped 25.7mm of rain in two hours and produced over 5,000 lightning strikes, according to New Zealand Metservice [1, 3].

Resident Richard Peters described the scene after the flooding receded as "literally pieces of poo on the ground, tampons and brown water," calling the situation "disgusting" [1, 2, 3].

Wellington Water crews have deployed a suction truck to clear the blockage and are working to remove faeces and sanitary waste from affected homes while disinfecting the properties [1, 2, 3].

The storm worsened ongoing wastewater issues caused by the malfunctioning Moa Point treatment plant, which has leaked millions of litres of raw sewage since February 2026 [1, 3]. Minor fixes have been made, but the plant is not expected to return to full operation until November [1, 3].

Officials have advised residents to avoid Tarakena Bay and refrain from swimming, surfing, or kayaking along the southern coast until further notice due to contamination risks [1, 3].

The five affected properties remain the focus of cleanup efforts as Wellington Water addresses the blockage caused by the storm and waits for full restoration of the wastewater treatment plant later this year [1, 2, 3].