Sewage Overflow Alerts

This table shows recent wastewater overflows and related health warnings. Our Can I Swim? page includes these warnings as well as the water quality of the popular swimming and fishing locations in the district.

 Please note that MPI also issue toxic shellfish warnings, you can view them here.

Waterway affected   Discharge location Date of discharge  Waste type  Warning Comments 
Urenui River  Stormwater outlets onto the mudflats Unknown Likely septic tank discharge

No shellfish gathering and avoid the mudflats

Warning ceases: Ongoing

 Testing has found elevated levels of bacteria in the stormwater discharging onto the mudflats.
Fitzroy and East End Beach  N/A N/A  N/A 

No Shellfish Gathering

Warning ceases: 7/12/2019

Warning due to routine maintenance on one bio-basin at the Wastewater Treatment Plant. There is potential for screened and disinfected wastewater to bypass the biological stage of the process.
Bell Block Beach  Treatment Plant Outfall 1.2km off Waiwhakiho River Mouth  Historical  

No Shellfish Gathering

Warning ceases: Ongoing

Residual levels can accumulate in shellfish under normal wastewater treatment plant operation. Ongoing monitoring of shellfish in progress to confirm if signage can be removed.
Lake Rotomanu  Treatment Plant Outfall 1.2km off Waiwhakiho River Mouth  Historical  

No Shellfish Gathering 

Warning ceases: Ongoing

Residual levels can accumulate in shellfish under normal wastewater treatment plant operation. Ongoing monitoring of shellfish in progress to confirm if signage can be removed.
Waiwhakaiho River Mouth  Treatment Plant Outfall 1.2km off Waiwhakiho River Mouth 
Historical  

No Shellfish Gathering 

Warning ceases: Ongoing

Residual levels can accumulate in shellfish under normal wastewater treatment plant operation. Ongoing monitoring of shellfish in progress to confirm if signage can be removed.