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Irrigation Update: Canterbury Region

Irrigation Update: Canterbury Region. Brett Painter April 2014. H urunui- Waiau. AIC/NTP 35,000 + <10,000 ha. ?? ? storage + <12,000 ha. HWP <250 Mm 3 storage + <58,500 ha. Waimakariri-Ashley. WIL/NTP/PR 8+on farm+?? Mm 3 storage 35,000 + <15,000 ha + reliability.

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Irrigation Update: Canterbury Region

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  1. Irrigation Update:Canterbury Region Brett Painter April 2014

  2. Hurunui-Waiau AIC/NTP 35,000 + <10,000 ha ?? ? storage + <12,000 ha HWP <250 Mm3 storage + <58,500 ha

  3. Waimakariri-Ashley WIL/NTP/PR 8+on farm+?? Mm3 storage 35,000 + <15,000 ha + reliability

  4. Rakaia-Waimakariri TP. 100-200+ Mm3 p.a. via canal & river CPW ? storage +40,000 ha TP/CPW/RDR/BCI Connecting infrastructure Existing 100,000 ha

  5. Rangitata-Rakaia ALIL Piping + storage ? RDR + 20-90 Mm3 BCI New intake + distribution VIL 80 km piping RDR/TP/RS/OWL Connecting infrastructure Existing 250,000 + 30,000 ha MH +6 Mm3 Piping ?

  6. Pareora-Rangitata OWL Restructure RS 16.5 Mm3 + on-farm Existing 28,000 + 40,000 ha

  7. Waitaki-Pareora HDI +40,000 ha Existing 24,000

  8. Canterbury Summary • Irrigated area • Currently ~470,000 ha • New potential <245,000 ha + swap from g/w • Water storage • Currently 72 Mm3 (Active volume ~90 Mm3) plus significant on-farm storage • 22.5 Mm3 under construction • 100-200+ Mm3 p.a. potential from Lake Coleridge • New potential <480 Mm3 plus more on-farm • Supply/demand reliability to 95% • On-going efficiency improvements (distribution and on-farm)

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