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TANK Resources

You can find the latest information from the TANK project on this page. The TANK group will be releasing a summary of the material covered in each meeting as Think TANK Bulletins. Any presentations provided at the meetings, as well as notes by the TANK members, can also be found on this page. You are encouraged  to read them and get familiar with what the TANK group is talking about.  Other documents and discussion points will be added as the project progresses.

Project Documents
ThinkTANK Newsletters
Other relevant reports

TANK Project Documents

These documents explain the TANK membership, how the TANK group operate and the processes and timeframes it is operating under.  They include their first interim report which describes their initial interim agreements.

The TANK Plan
TANK Group - Terms of Reference
TANK Interim Report
TANK Master Plan
TANK Values and Attributes (draft June2016)
TANK – Draft Implementation Plan

TANK Values - Te Ao Maori (2017)

Our latest newsletter

February 2018 - THIS IS TANK

Think TANK enewsletter

Thjink Tank 22 newsletter - June 2018

Think Tank 21 newsletter - May 2018

Think TANK 20 newsletter - April 2018

Think TANK 19 newsletter - March 2018

Think TANK 18 newsletter - February 2018

Think Tank 17 newsletter - January 2018

Think TANK 15 newsletter - November 2017

Think TANK 14 newsletter - October 2017

Think TANK 13 newsletter - September 2017

Think TANK 12 newsletter - August 2017

Think TANK 11 newsletter - July 2017

Think TANK 10 newsletter - June 2017

Think TANK 9 newsletter - April 2017

Think TANK VIII newsletter - March 2017

Think TANK VII newsletter - February 2017

Think TANK VI newsletter - December 2016

Think TANK V newsletter 15 November 2016

Think TANK IV newsletter 20 September 2016

Think TANK III newsletter 30 August 2016

Think TANK II newsletter 22 July 2016

Think TANK I newsletter 7 July 2016


Mtg 39 - 19 April
Receive information about the Draft Drinking Water Source Protection
Receive the Tutaekuri Values report
Draft Plan - Identify areas of consensus and understand the solutions and alternatives being sought

Meeting Notes

Mtg 38 – 22 March
Agree lowland stream depletion management
• Stream flow enhancement
• Riparian land/wetland management
• Allocation limit and re-allocation of water
Agree on high flow allocation management framework and policy direction
Receive initial economic modelling results
Reduce the number of management scenarios for economic modelling
Receive update from Mana Whenua working group

Meeting Notes

Mtg 37 – 22 February
Agree to stormwater and urban water management framework
Understand Tutaekuri Values
Agree stream depletion management
• Steam flow Augmentation
• Ngaruroro storage scheme
• Riparian land/wetland management
Provide feedback on plan drafting

Meeting Notes
HDC Presentation
NCC Presentation

Mtg 36 – 30 January
TANK Programme 2018 Update
Agree to proposed mapping of Zone 1 to incorporate in draft rule
Agree to application of proposed calculator in draft rule for stream depleting groundwater
Agree drafting instructions for water allocation and priority

Meeting Notes

Mtg 35 – 22 November
Agree drafting instructions and recommendations for wetland management
Agree climate change policy
Agree recommendations for managing staged reductions
Understand economic modelling approach
Agree TANK monitoring plan and policy recommendations

Meeting Notes

Mtg 34 – 18 October
Agree on allocation and flow management scenarios for further assessment for Ngaruroro and Tutaekuri Rivers
Discuss restriction regimes and agree next steps

Meeting Notes

Mtg 33 – 10 October

Agree on objectives for contaminant loads to the estuaries
Agree on desired attribute states
Discuss nutrient management approach(s) and agree next steps

Meeting Notes

Mtg 32 – 7 September
Topics Covered:
Decide on the sediment management framework from the Farmer Reference Group and next steps
Decide on recommendations about farming systems from the Economic Assessment Working Group
Dedicated time for TANK Group members to discuss topics of their choice

Meeting Notes

Meeting 31 – 17/8/2017
Main topics covered:
Desired flow management targets for lowland streams
Flow augmentation (to manage groundwater depletion effects on the specified flows).
The management of surface water takes (lowland streams)
The management of Ngaruroro flows (the effect of ground water takes)
Managing groundwater levels
Farmer Reference Group report back

Meeting 31 Meeting Notes
Meeting 31 Slides

Meeting 30 - 27/7/2017
Main Topics covered:
Clive River flow and channel management options
Water Augmentation Working Group
Stormwater management
Further groundwater modelling results

Meeting 30 Meeting notes
Meeting 30 slides

Meeting 29 – 14/6/2017
Main Topics covered:
Summary of Groundwater Science
Water age in drinking water supply wells in Heretaunga aquifer
SOURCE model and Stormwater takes
Te Tua out-of-stream storage specs and modelling

Meeting 29 Meeting notes
Meeting 29 slides

Meeting 28 – 27/4/2017
Main Topics covered:
Recap of benefit to river from restricting stream depleting groundwater takes
Raupare flow augmentation scheme
Groundwater modelling results
On-farm economic assessment methodology

Meeting 28 Meeting notes
Meeting 28 slides

Meeting 27 - 22/3/17
Main Topics covered;
Ahuriri State and Trends plus management options
Surface and groundwater modelling – stream depletion modelling results, effectiveness of pumping bans, mitigation options

Meeting 27 Meeting notes
Meeting 27 slides

Meeting 26 - 9/2/17

Main Topics covered;
Iwi Engagement
Rivers, drains and modified watercourses
Flow regime management scenarios for modelling
Groundwater takes, stream depletion and spatial management

Meeting 26 Meeting notes
Meeting 26 slides

Meeting 25 - 13/12/16

Main Topics covered
State of Karamu River
Values and attributes
Managing the main stressors (macrophyte growth, oxygen levels and temperature)
Managing the drainage and flood control in the Karamu catchment
Introduction to the Heretaunga Plains model

Meeting 25 Meeting notes
Meeting 25 slides

Meeting 24 - 4/11/16

Main Topics covered
Groundwater quality – state and trends
Options for managing sediment loss

Meeting 24 Meeting notes
Meeting 24 slides

Meeting 23 - 20/9/16

Main Topics covered
Results of SEDNET sediment loss modelling
Waitangi Estuary – state and trends
Manawhenua values to attributes research report

Meeting 23 - 20 September 2016 Meeting Notes
Report on Questions arising from Meeting 23
Slides from meeting 23

Meeting 22 - 9/8/16

Main Topics covered
Ngaruroro and Tutaekuri values and attributes
Water quality state and choices for priority management action

Meeting 22 – 9 August 2016 Meeting Notes
Presentation – science presentation about Ngaruroro and Tutaekuri water quality

Other Meetings With Key People

The TANK Group pastoral farmer representatives, with the support of the Council and Beef and Lamb NZ, are working with farmers to involve them in the TANK project.  A number of public meetings were held across the TANK catchments in 2016 and early 2017.  A farmer reference group has now been established to help provide information and feedback to the TANK group.  A particular focus for the group will be on how to meet a target for reducing the amount of sediment (and associated phosphorous) lost as a result of land use activities and soil erosion.  More information about the group is available from Mary-Anne Baker ( Peter Kay (  and Ivan Knauf (

The meeting presentations and meeting notes are provided below.  Pastoral farmers are particularly encouraged to take an interest in this work.

Public Meetings

Meeting 1 – September 2016
The presentation is available here.

Meeting 2 – March 2017
The presentation is available here.

Farmer Reference Group Meetings

Meeting 1 – May 2017
Meeting notes

Meeting 2 – June 2017
Meeting notes (to come)

Reports and Information

A number of documents have provided background material, state of the environment data and other information to support some of the presentations and decision making being considered by the TANK group.


Flows and Allocations


Wetlands and Estuaries


Related Documents

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