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Freshwater quantity

Reports to assist the development of Gisborne's Freshwater Plan

Review of groundwater monitoring in the Poverty Bay Flats aquifer system - January 2017

M Moreau, C Tschritter, PA White (GNS) P Murphy (Gisborne District Council)
Review of the long term groundwater monitoring network for the Poverty Bay aquifer system in response to the 2014 National Policy Statement for Freshwater Management which requires integrated freshwater management of surface water, groundwater and coastal water.
Review of groundwater monitoring in the Poverty Bay Flats aquifer system [PDF, 8.8 MB]

Development of a groundwater monitoring network in the East Coast Holocene alluvial - November 2016

M Moreau, C Tschritter, PA White (GNS) P Murphy (Gisborne District Council)
Review and update of information available for the Holocene East Coast alluvial areas, excluding Poverty Bay Flats. The report identifies data gaps and recommends further data collection and groundwater monitoring to inform Gisborne District Councils sustainable management of these areas.
Development of a groundwater monitoring network in the East Coast Holocene alluvial [PDF, 7.7 MB]

Gisborne district water resources under climate change - June 2012

Daniel Collins (NIWA)
Review the existing knowledge of freshwater changes under climate change and to extend this knowledge to include changes in average seasonal river flow and annual low flows.
Gisborne district water resources under climate change (945kb)

Water demand forecasting - Gisborne water supply - December 2011

Water Utilities (Gisborne District Council)
A "basic" demand forecasting, looking at how much water is likely to be used in the future.
Water demand forecasting Gisborne water supply (1.7mb)

Strategic water study into the supply and demand options for the 4 main catchments within Gisborne district - October 2013

Aqualinc Research Limited
The purpose of this study is to make a strategic assessment of the current and future state of the water resources for the 4 main catchments within the Gisborne district. The study assesses the present and potential future (for next 50 years) requirements for water in these catchments, the availability of surface and groundwater resources to meet this demand, and identifies appropriate mechanisms and options to address water management in the catchments where water shortfalls have been identified.
Please note this document is subject to copyright
Strategic water study into supply and demand options for the four main catchments within Gisborne district (5mb)

Gisborne district alluvial area boundaries and rainfall recharge estimates - 2011

Paul Murphy (Gisborne District Council), Constanze Tschritter (GNS Science)
This study seeks to estimate recharge rates from rainfall for the major aquifers across the Gisborne district.
Gisborne district alluvial area boundaries and rainfall recharge estimates (4mb)

Groundwater in the Poverty Bay Flats - July 2012

P.A White, M Moreau-Fournier, C Tschitter,  (GNS), P Murphy (Gisborne District Council)
This report outlines information about aquifers in the Poverty Bay Flats.
Groundwater in the Poverty Bay flats (3mb)

Review of groundwater information for the Poverty Bay Flats - April 2010

Paul Murphy (Gisborne District Council)
Review of information regarding the Poverty Bay aquifers.
Uses of existing GDC groundwater information (196kb)

Gisborne groundwater workshop notes - 7 May 2010

Gisborne groundwater workshop notes (232kb)

Review of "Groundwater in the Poverty Bay Flats" -  October 2012

Aqualinc Research Limited
This report was prepared for Horticulture New Zealand and is a review of the report prepared by GNS on "Groundwater in the Poverty Bay Flats"
Please note this document is subject to copyright Review of groundwater in the Poverty Bay Flats (4mb)

Review of flow records and estimates for the mean annual 7 day low flow for the Waipaoa and Te Arai Rivers - April 2010

N Norton, M Flanagan, K Walter, W McGrath (NIWA)
Review of flow records for the Waipaoa and Te Arai rivers.
Annual low flows for Waipaoa and Te Arai rivers (644kb)

Surface water allocation of the Waipaoa and Te Arai Rivers - January 2012

Paul Murphy (Gisborne District Council)
Provides analysis, background, limitations and interim minimum low flow requirements on the Waipaoa and Te Arai rivers.
Surface water allocation of the Waipaoa and Te Arai Rivers (1.3mb)

Instream habitat and flow regime requirements for the Waipaoa and Te Arai Rivers - June 2010

DJ Booker, N Norton (NIWA), Paul Murphy (Gisborne District Council)
An assessment of river flow regime requirements for in-stream ecological values for the Waipaoa and Te Arai rivers.
Instream habitat values for Waipaoa and Te Arai Rivers (1.56mb)

Guidelines for irrigation water requirements in the Poverty Bay Flats - May 2012

Aqualinc Research Limited
A guideline to how much irrigation water is required for a specific level of reliability to keep crops well watered. This is for the range of crops that can potentially be irrigated on the Poverty Bay Flats.
Guidelines for irrigation water requirements in the Poverty Bay Flats

An assessment of the economic value of irrigation on the Poverty Bay Flats - February 2012

The AgriBusiness Group
A summary of the assessment of the economic value of freshwater for various irrigation uses on the Poverty Bay flats using irrigation water from groundwater and surface water taken from the Waipaoa and Te Arai Rivers.
An assessment of the economic value of irrigation on the Poverty Bay Flats (95kb)

Poverty Bay Flats Irrigation Investigations - March 1986

Water and Soil Division Napier District (Ministry of Works and Development)
This report summarises the investigations and preliminary results in the identification of communal irrigation opportunities for the Poverty Bay Flats.
Poverty Bay Flats irrigation investigations (1.2mb)

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