Christchurch West Melton Water Management

Zone Committee

Open Minutes



Date:                                    Thursday 24 February 2022

Time:                                   6.04pm

Venue:                                 West Melton Community Centre,

1163 West Coast Road, West Melton and via audio/video link





Deputy Chairperson


Kevin Brown - Community Representative

Annabelle Hasselman - Community Representative

Mike Patchett - Community Representative

Brynlea Stocks - Community Representative

Councillor Phil Clearwater - Councillor Environment Canterbury

Councillor Sophie McInnes - Selwyn District Council

Arapata Reuben – Te Ngāi Tūāhuriri Rūnanga

Les Wanhalla - Te Taumutu Rūnanga






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

To view copies of Agendas and Minutes, visit:


Christchurch West Melton Water Management Zone Committee

24 February 2022





Arapata Reuben opened the meeting with a Karakia/Timatanga.


A minute’s silence was observed for Peter Ramsden, Te Rūnanga o Koukourarata, who passed away recently. Peter was passionate about the environment, and was involved in the beginning of the Canterbury Water Management Strategy.


The agenda was dealt with in the following order.

1.   Apologies

Committee Resolved CWZC/2022/00001

That the apologies received from Helen Rutter, Emma Norrish and Oscar Bloom be accepted.

Les Wanhalla/Mike Patchett                                                                                                                                 Carried


2.   Declarations of Interest

Annabelle Hasselman declared an interest in Item 11 - Ōpāwaho Heathcote River Network.

Mike Patchett declared an interest in Item 11 - Water and Wildlife Habitat Trust Ōtūkaikino River.

Councillor Clearwater provided a list of his interests.

3.   Confirmation of Previous Minutes

Committee Resolved CWZC/2022/00002

That the minutes of the Christchurch West Melton Water Management Zone Committee meeting held on Thursday, 25 November 2021 be confirmed.

Mike Patchett/Phil Clearwater                                                                                                                             Carried


4.   Matters Arising from the Minutes

         It was noted that the funding allocation of $15,000 referred to at the previous meeting for on-the-ground projects aimed at improving waterway management or biodiversity, relates to Item 11 on today’s agenda.

5.   Deputations by Appointment

There were no deputations by appointment.

6.   Identification of Urgent Items


7.   Identification of General Public Contributions



Item 8 was dealt with prior to the conclusion of the meeting.



9.   Erosion and Sediment Control Responsibilities Update


Committee Comments


A presentation was given by Jess Newlands, Environment Canterbury (ECan) Senior Resource Management Officer and Clive Appleton, Christchurch City Council (CCC) Healthy Waterways Programme Lead – “Christchurch City Council Comprehensive Stormwater Network Discharge Consent” (CSNDC).


See Minutes Attachment for detail of the presentation.


Jess provided detail on the background of the CSNDC, its purpose and location, how stormwater is defined, and a summary about what has changed. Clive referred to matters of erosion and sediment control, that all development sites must have an Erosion and Sediment Control Plan and about the checking and monitoring of these Plans by Council inspectors. He suggested dedicated staff were needed to assist with monitoring and inspections particularly following heavy rainfall events.


Discussion was held about the inclusion of heavy metal traps and greywater tanks; also about education of inspectors and what rules are contained in the District Plan in relation to erosion and sediment control. Clive undertook to investigate these matters.



Committee Resolved CWZC/2022/00003

That the Christchurch West Melton Water Management Zone Committee supports:

1.              Building capacity of industry for erosion and sediment control.

2.              Education courses being enhanced and continued.

3.              The provision of an adequate number of dedicated erosion and sediment control officers.

Mike Patchett/Annabelle Hasselman                                                                                                                Carried



a       Erosion and Sediment Control Presentation  


10. Ihutai-Estuary and Coastal Catchment Stormwater Management Plan


Committee Comments


Paul Dickson, CCC Drainage Engineer, Stormwater & Waterways, presented  about the Ihutai-Estuary and Coastal Catchment Stormwater Management Plan.  See Minutes Attachment for detail of the presentation. He talked about:


1.1          What shapes the Ihutai-Estuary and Coastal Catchment Stormwater Management Plan (SMP).

1.2          Likely matters of interest in the SMP:

·     Contaminants;

·     Flooding.

1.3          Mitigations that the Council has and can put in place.

1.4          Constraints on mitigation actions.


Paul noted the following during his presentation:


·         Stormwater Management Plans (SMPs) are a compliance activity under conditions of the CSNDC CRC214226.   A strategic plan for surface water is proposed to be developed separately, to develop more aspirational goals for surface water, particularly stormwater quality improvement.

·         Key points about contaminant sources and flooding were covered.

·         Likely matters of interest relate to flooding was summarised in each of three areas; Parklands, City Centre/Linwood, and hill catchments.  In general the flooding risks are low.

·         Water quality issues are most significant in the Bromley industrial and central city areas, due to roof types, higher vehicle movements and industrial activities.  These areas would be prioritised for treatment.  The SMP will propose a stormwater treatment wetland on Linwood Paddocks to treat the Bromley industrial area.  Further budget in the LTP may be approved by Council to treat Linwood Canal subject to a report to Council on the performance of the Richardson Terrace Storm Filter and expected benefits and costs of Stormwater treatment city-wide.


Discussion followed the presentation about additional target for nutrients.



Committee Resolved CWZC/2022/00004

That the Christchurch West Melton Water Management Zone Committee:

1.         Receive the information in the Ihutai-Estuary and Coastal Catchment Stormwater Management Plan Report.

Kevin Brown/Sophie McInnes                                                                                                                              Carried



a       Ihutai Estuary & Coastal SMP  


11. Canterbury Water Management Strategy Plan Action Plan Budget



Port Hills Park Trust

A presentation (see Minutes Attachment A) was given by Alan McDonald, Port Hills Park Trust. Alan acknowledged the support of the Zone Committee for the previous Immediate Steps funding provided. He talked about the Trust, its membership and vision. He outlined the Albert Stream project the Trust was seeking funding for, with its goal to increase habitat from the valley floor to Summit Road.


Ōpāwaho Heathcote River Network

Rachel Barker gave a presentation (see Minutes Attachment B) about the Ōpāwaho Heathcote River Network’s Cashmere Stream Freshwater Springs project, a project to be undertaken in two stages with the aim of protecting the river’s freshwater springs.



Water & Wildlife Habitat Trust – Ōtūkaikino River

Mike Patchett presented to the Committee about a Riparian Restoration project on the Ōtūkaikino River, Clearwater Reach. (See Minutes Attachment C). Mike talked about the project and the degraded catchment due to willows. A map of the River and tributaries provided a summary of the instream ecological health. Mike reported on a partnership with the Department of Corrections for planting work, and a database and imagery for ongoing tools.


Following the presentations discussion was held about the funding allocation available and a decision made on the recommendation to Environment Canterbury.



Committee Resolved CWZC/2022/00005

That the Christchurch West Melton Water Management Zone Committee:

1.         Receive information on funding requests from the Port Hills Park Trust Board, Ōpāwaho Heathcote River Network and the Water and Wildlife Habitat Trust Ōtūkaikino River.

2.         Recommend to Environment Canterbury the allocation of the available Canterbury Water Management Strategy Action Plan budget:

a.              Port Hills Park Trust                                                               $5,000

b.              Ōpāwaho Heathcote River Network                                $6,000

c.              Water and Wildlife Habitat Trust Ōtūkaikino River   $4,000 in this financial year

   plus $6,000 top priority for the next financial year


Kevin Brown/Les Wanhalla                                                                                                                                   Carried

Abstained: Arapata Reuben




a       Mt Vernon Zone presentation

b      Ōpāwaho Heathcote River Network Springs Presentation

c      Water & Wildlife Habitat Trust Ōtūkaikino River  


12. Canterbury Water Management Strategy Action Plan Progress Updates



Members provided the following Action Plan programme comments.


Mike Patchett reported on engaging community groups, such as:

·         Styx Living Laboratory new resource centre, and possibly a brief from them regarding road reserves and about what support the Zone Committee could provide.

·         Community Waterways Partnership hub.

·         Avon River Group co-governance model.

·         Healthy Waterways Report Card developed.


Annabelle Hasselman advised a priority had been understanding from the earlier presentation by Jess Newlands and Clive Appleton on Erosion and Sediment Control that clarified responsibilities.


Kevin Brown – advocated to the City Council and Environment Canterbury to update and monitor the state of modelling of groundwaters – the report to them was minutes and they see this as a priority.


Brynlea Stocks advised about applications for a Stormwater Superhero Awards, applications are due in April/May with an event to be held around October/November.



Committee Resolved CWZC/2022/00006

That the Christchurch West Melton Water Management Zone Committee:

1.         Receive the information in the Action Plan Progress Update Report.

Kevin Brown/Annabelle Hasselman                                                                                                                  Carried


8.   2022 Committee Meetings, Working Groups and Election of Chair and Deputy Chair


Kevin Brown informed the Committee of his resignation from the Zone Committee, and this was his final  meeting.

Nominations were called for the positions of Chair and Deputy Chair for the Christchurch West Melton Water Management Zone Committee.



Les Wanhalla nominated Annabelle Hasselman to the position of Chair, seconded by Arapata Reuben.


There being no other nominations, Annabelle Hasselman was elected Chair.


Deputy Chair

Annabelle Hasselman nominated Mike Patchett to the position of Deputy Chair, seconded by Cr Clearwater


There being no other nominations, Mike Patchett was elected Deputy Chair.


Kevin was acknowledged and thanked for his commitment, knowledge and expertise, his assistance with the Stormwater Superhero events, and for advocating regarding the nitrates/colorectal cancer issue. He also led the Committee on number of successful field trips.




Arapata Reuben closed the meeting with a Karakia/Whakamutunga.


Meeting concluded at 8.33pm.