Purpose

HWPL is proposing to establish a community irrigation scheme with hydro power generation. The proposal involves the abstraction of water from the Hurunui River, via either an intake near the confluence of the Mandamus River or an intake 1-2 kilometres upstream from the Dampier Stream confluence and the irrigation of approximately 42,000 hectares of land in the Hurunui and Upper Waipara catchments, as shown on the attached plan.  Two storage structures are proposed to impound water, a dam on the South Branch of the Hurunui River and a weir structure on the mainstem of the Hurunui River, just downstream of the outlet from Lake Sumner. The proposed hydro power generation will be either on the scheme distribution canal, or located at the proposed dam on the South Branch of the Hurunui River, or both.

The applications listed relate only to the take, use, divert, damming, and discharge of water and are therefore the first stage of the consent process for the HWPL scheme. Resource consents related to the construction of the irrigation and hydro power generation scheme, dam, weir, and associated infrastructure will be applied for as part of stage two of the consent process for the HWPL scheme. All consents are being applied for a duration of 35 years.

View map (pdf 122 kB)

Application documents

Resource Consent Application & Assessment of Environmental Effects (incl Appendix A - Additional Consents Required) 3.12MB

Appendix B - Distribution & Demand for Irrigators in Hurunui District (includes Supporting Map) 2.15MB

Appendix C - Hurunui Community Water Development Project Stage 1A District Scoping Study 1.48MB

Appendix D - Assessment of Environmental Effects: Hydrology and Irrigation Demand for the Hurunui Water Project 290kB

Appendix D - Supporting Figures:

Appendix A - Figure A1: Proposed Irrigation Area and Offtake 1.44MB
Appendix A - Figure A2: Lake Sumner and South Branch Storage Reservoir 3.98MB
Appendix A - Figure A3: Soil Map of the Command Area 3.11MB
Appendix A - Figure A4: Soil Water Holding Capacity 1.79MB
Appendix A - Figure A5: Isohyetal Map of the Hurunui Catchment with Sub-catchments 4.67MB

Appendix B - Historical Hydrological Data 4.88MB
includes
Figure B1: Map with Sub-catchments and Flow Recorders
Figure B2: Typical Inflow- Outflow Hydrograph for Lake Sumner
Figure B3: Historical Lake Levels in Lake Sumner
Figure B4: Histogram of Historical Lake Levels in Lake Sumner
Figure B5: Level duration curve for historical levels in Lake Sumner
Figure B6: Historical stage/discharge data for Lake Sumner

Appendices C-N 3.21MB
includes
Appendix C - Water Abstractions
Appendix D - Water Level Recorder Sites
Appendix E - Summary statistics for the regressions, resulting synthesised flow records and flow statistics
Appendix F - Synthesised Hydrological Data Figures
Appendix G - Scheme Overview Figures
Appendix H - Lake Sumner Figures
Appendix I - South Branch Gorge Figures
Appendix J - South Branch at Esk Head Figures
Appendix K - Hurunui at Mandamus Figures
Appendix L - Downstream Figures
Appendix M - Detailed Plots
Appendix N - Supply/demand plots and Soil Moisture Index plots

Appendix E - Assessment of Environmental Effects: Groundwater Quality Assessment for the Hurunui Water Project 181kB

Supporting Figures and Well Records

Supporting Figures 1-6 6.53MB
includes
Figure 1: Command Area
Figure 2: Soil Water Holding Capacity
Figure 3: Depth to Maximum Recorded Water Level
Figure 4: Depth of All Wells from Environment Canterbury Database
Figure 5: Piezometric contours for area just north of HWP command area
Figure 6: Potentiometric surface map showing groundwater flow direction

Supporting Figures 7-10 and Well Records 6.20MB
includes
Figure 7: Existing Median Nitrate Nitrogen Concentrations
Figure 8: Wells with Long Term Nitrate Nitrogen Records
Figure 9: Maximum E. coli Count
Figure 10: Maximum Faecal Coliform Count
Long-term Nitrate Nitrogen Records for Well N33/0194
Long-term Nitrate Nitrogen Records for Well N33/0216
Long-term Nitrate Nitrogen Records for Well N33/0219
Long-term Nitrate Nitrogen Records for Well N34/0109

Appendix F - Ecological Investigations of the Upper Hurunui River and Terrestrial Systems: Ecological Technical Report 12.53MB

Supporting Figures 9.74MB

Appendices G-H 4.12MB
includes
Appendix G - River and Coastal Geomorphology AEE
Appendix H - Documentary Review of Potential Archaeological Impacts from Proposed Dams in the Lake Sumner Area

Appendix I - Hurunui Water Project: Preliminary Assessment of Landscape and Visual Effects (including Appendices 01 and 02) 3.35MB

Appendix 03 32.79MB
Appendix 04 32.82MB
Appendix 05 5.26MB
Appendix 06 13.94MB
Appendix 07 15.56MB
Appendix 08 18.03MB
Appendix 09 7.30MB
Appendix 10 3.52MB
Appendix 11 6.04MB

Appendix J - Hurunui Water Project: Recreation Assessment of Effects 1.37MB

Appendix K - Hurunui Water Project: Lake Sumner Storage Option Engineering Report 22.10MB

Appendix L - Hurunui River South Branch Storage Option Engineering Report 47.06MB

Appendices M-P 1.02MB
includes
Appendix M - Hurunui Water Project Irrigation and Hydro Power Intake Location
Appendix N - Economic Analysis of the Effects of the Project
Appendix O - Statement of Evidence of Gareth Renowden on behalf of the Hurunui Water Project
Appendix P - Consultation and Communication Summary for AEE