Caring for the environment, Climate change, Have your say, sustainability, Water  |  17 Apr 2025

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We’re seeking community feedback on the draft plan to improve how stormwater is managed in Banks Peninsula settlements.

Consultation on the draft Te Pātaka o Rākaihautū Banks Peninsula Stormwater Management Plan is open until Tuesday 17 June 2025.

The plan lays out the ways the Council will meet the requirements of the Comprehensive Stormwater Network Discharge Consent (CSNDC), which was granted by Environment Canterbury in 2019.

Head of Three Waters Gavin Hutchison says this plan considers the unique features of Banks Peninsula.  

“Urban runoff can carry sediment and other pollutants into waterways. This plan proposes practical steps we can take to reduce these impacts, support biodiversity, and work alongside mana whenua to protect cultural values connected to water,” says Mr Hutchison.  

Banks Peninsula’s catchments are ecologically significant and include more than 100 small streams flowing into Whakaraupō / Lyttelton Harbour and Akaroa Harbour. While most of the peninsula is rural or conservation land, urban activities in settlements still have an effect on water quality and stream health.

The draft plan includes three options for physical works such as stream restoration, installing stormwater treatment devices, and improving erosion control at development sites.  

Option 1: Maximise enhancement 
Invests in stream planting, sediment removal, and habitat restoration – with fewer treatment devices.

Option 2: Treat the worst streams 
A mix of stream enhancement and treatment devices, aiming to treat the worst-affected streams.

Option 3: Maximise treatment 
Focuses solely on installing 22 treatment devices, with no stream restoration.

"Effective stormwater management is crucial for maintaining the ecological health of our waterways."  

"We encourage residents and stakeholders to review the draft plan and provide feedback so our approach considers the needs and values of our community."

Have your say on the draft Te Pātaka o Rākaihautū Banks Peninsula Stormwater Management Plan.