Chairperson

Deputy Chairperson

Members

Annabelle Hasselman - Community Representative

Mike Patchett - Community Representative

Helen Rutter - Community Representative

Shona Sluys - Community Representative

Brynlea Stocks - Community Representative

Emma Norrish - Christchurch City Council Elected Representative

Councillor Phil Clearwater - Councillor Environment Canterbury

Councillor Sophie McInnes - Selwyn District Council

Tyla Harrison-Hunt - Te Taumutu Rūnanga

Oscar Bloom - Youth Representative

Zone Facilitator

Shelley Washington

Tel: 027 294 5219

Environment Canterbury

Principal Advisor

Diane Shelander

Senior Policy Analyst

Tel: 941 8304

Christchurch City Council

Committee Advisor

Liz Ryley

Tel: 941 8153

Christchurch City Council

Committee Resolved CWZC/2022/00011

That the apologies for absence received from Arapata Reuben, and for early departure from Councillor Phil Clearwater, be accepted.

Annabelle Hasselman/Brynlea Stocks                                                                                                              Carried

9.   Erosion and Sediment Control

Ashley Rule representing the Redcliffs Residents Association (RRA) presented to the Committee about erosion and sediment issues in an area of Emily Heights subdivision development in Redcliffs. This results in sediment run-off from exposed clay cliffs into Moncks Bay, from a development happening on the hill at the end of his street. He played a video that showed some of the sediment runoff flowing down the street and then into the estuary. Concerns by residents relate to flooding, contamination, silt and slurry that washes out to the estuary, and harm to penguins nesting, to dolphins with calves and to fish, from this contamination.

Mr Rule advised that the RRA had been informed that this could not be mitigated through the City Council’s Ihutai-Estuary and Coastal Draft Stormwater Management Plan that the RRA had submitted to during consultation in early 2022.

It was suggested that the RRA contact the Community Board in relation to the matter. In response to an enquiry, Mr Rule advised the Association wants the water filtered before it enters the estuary. It was noted that the Council has been trialling erosion and sediment control techniques on steep cut slopes and that there are other techniques (including concrete) that do work on steep slopes and building sites.

In support of the presentation, Mike Patchett thanked Mr Rule and reconfirmed that issues included the control and reduction of stormwater runoff at the development site, and that resource consent had been issued on this very steep land on loess soil.

Committee Resolved CWZC/2022/00012

That the Christchurch West Melton Water Management Zone Committee:

1.         Receive the presentation from the Redcliffs Residents Association, related to erosion and sediment control and sediment contaminated stormwater management problems observed at the Emily Heights subdivision development in Redcliffs, and probable adverse effects on the Avon Heathcote Estuary/Ihutai.

2.         Request a progress report and briefing from Environment Canterbury and the Christchurch City Council on erosion and sediment control, and sediment contaminated stormwater management, in particular related to Emily Heights subdivision development and dealing with future lot development phases.

3.         Request a meeting with relevant key senior staff of the Christchurch City Council and Environment Canterbury relating to these issues, prior to the next Zone Committee meeting.

Mike Patchett/Oscar Bloom                                                                                                                                  Carried

10. Pūharakekenui Styx Living Laboratory Trust

Pūharakekenui Styx Living Laboratory Trust (the Trust) representatives, Jackie Howard (Community Co‑ordinator - Pūharakekenui Freshwater Improvement Fund Project) and Anita Spencer (Programme Manager) presented to the meeting regarding the Trust’s background, current projects, and strategic plans for the future. The Trust covers 7,000 hectares in this area. Discussion was held about funding and areas the Zone Committee may be able to support the Trust (see Minutes Attachment for power point presentation).

Committee Resolved CWZC/2022/00013

That the Christchurch West Melton Water Management Zone Committee:

1.              Receives the presentation from the Pūharakekenui Styx Living Laboratory Trust.

2.              Provides a general letter of support for the Trust’s work, to the Trust that it can use when seeking funding.

Annabelle Hasselman/Shona Sluys                                                                                                                   Carried

Attachments

a       Presentation - Pūharakekenui Styx Living Laboratory Trust ⇨  

Committee Resolved CWZC/2022/00014

That the minutes of the Christchurch West Melton Water Management Zone Committee meeting held on Thursday, 28 April 2022 be confirmed.

Emma Norrish/Shona Sluys                                                                                                                                  Carried

11. Ground and Surface Water Quality Implications for the Christchurch West Melton Zone

Zone Committee member Dr Helen Rutter, and Senior Groundwater Scientist for ECan, Andrew Raj, presented to the Committee on Ground and Surface Water in the Christchurch West Melton zone (see Minutes Attachment for power point presentation).

The presentation included information on:

•       Conceptualisation of the system

•       Understanding of some of the main issues with regards to:

•        Groundwater quantity and allocation

•        Surface water flows and variability

•        Groundwater quality

•        Surface water quality

•        Groundwater as a hazard

Committee Resolved CWZC/2022/00015

That the Christchurch West Melton Water Management Zone Committee:

1.              Receive the presentation about ground and surface water quality implications for the Christchurch West Melton zone, from Zone Committee member Dr Helen Rutter, and Senior Groundwater Scientist for ECan, Andrew Raj.

Annabelle Hasselman/Oscar Bloom                                                                                                                  Carried

Attachments

a       Presentation Ground and Surface Water ⇨  

12. Correspondence - Urban Waterway Contaminants

The Committee noted the correspondence about the urban waterway contaminants, i.e. letter from the Chair, Annabelle Hasselman, to the Mayor CCC and Chair ECan about urban waterway contaminants, and the subsequent letter by the Mayor CCC and Chair ECan to the Associate Minister for the Environment.

Committee Resolved CWZC/2022/00016

That the Christchurch West Melton Water Management Zone Committee:

1.              Receive the correspondence related to urban waterway contaminants.

Annabelle Hasselman/Oscar Bloom                                                                                                                  Carried

13. Facilitator's Update - June 2022

The Committee noted the Facilitator’s update report including updates about:

·         Appointment of new Zone Committee members

·         Committee CWMS Triannual Report to Councils

·         Recent events including the National Volunteer Week Celebration

·         Communications and Engagement Plan activities

·         Stormwater Superhero Awareness Campaign

Committee Resolved CWZC/2022/00017

That the Christchurch West Melton Water Management Zone Committee:

1.         Receive the Zone Facilitator’s report to June 2022.

Annabelle Hasselman/Brynlea Stocks                                                                                                              Carried