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Selwyn- Waihora ZIP Addendum & Variation 1

Selwyn- Waihora ZIP Addendum & Variation 1. ZIP Addendum Solution Package. Goal of the Solution Package: To improve cultural and environmental outcomes in the Selwyn Waihora catchment while maintaining farm viability and economic growth Key values :

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Selwyn- Waihora ZIP Addendum & Variation 1

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  1. Selwyn-Waihora ZIP Addendum & Variation 1

  2. ZIP Addendum Solution Package Goal of the Solution Package: To improve cultural and environmental outcomes in the Selwyn Waihora catchment while maintaining farm viability and economic growth Key values: • The lake ‘TeWaihora’ and its margins are a taongafor NgāiTahu • Agriculture, underpinned by reliable water supply, is a significant contributor to the economy

  3. Overview of current situation situation • Agriculture is a significant contributor to economy: • about a third of District’s GDP • employs 2,600 on-farm • SW agriculture contributes $620 million to regional economy & employs 14,700 regionally. Water use, irrigated area & intensive land use substantially increased in last 20 years Most (80%) of water-use consents do not come up for renewal until 2030-2040 Reliable water supply is critical to a high-value agricultural economy Flows in lowland streams & Selwyn/Waikirikiri have decreased by about 15-20%. Decline in health of Te Waihora has led to increase in algal blooms. Mahingakai not considered safe to eat. Phosphorus has accumulated in lake-bed sediments High nitrate concentrations in lowland streams & shallow groundwater. Lag in groundwater system of 10-30 yrs Central Plains Water: 60,000ha irrigation from alpine water. Includes 30,000ha new irrigation NPS for Freshwater Management requires regional councils to set limits for quality & quantity Selwyn Waihora Zone Committee’s ZIP Addendum Delivering Canterbury Water Management Strategy (CWMS) by improving cultural & environmental outcomes in catchment while maintaining farm viability & economic growth Recommended package achieved through SW Sub-regional Section of LWRP and other actions. see www.ecan.govt.nz/selwyn-waihora

  4. Selwyn Waihora ZIP AddendumGoals, pathways and outcomes

  5. What it means on farm • Stock exclusion: streams, drains, wetlands & springheads • Everyone farming at Good Management Practice (GMP) by 2017 • > 15kgN/ha/yr farming at improved GMP from 2022 • Schedule of Practices • Farm Environment Plans • Consented annual/seasonal volumes based on measured water use • Revised minimum flows (from 2025) • Effective riparian margins, protection of springhead wetlands, targeted sediment removal, etc Variation 1

  6. Variation 1 1st change to the pLWRP to introduce a revised sub-regional chapter Variation 1 notified 22 February Submissions close 21 March Public notification of Summary of Decisions late April/May – Further Submissions Hearing September/October 2014

  7. Water Quantity • Combined surface water and groundwater limits • Allocation limits set to achieve ecological/cultural flows – taking into account contribution from CPW • New takes prohibited – while over allocation limits • Existing takes – annual volumes based on demonstrated use: applied @ time of consent renewal • CPW: no transfers of water, others 50% surrender, no transfer below SH1 to above • New minimum flows from 2025 - applied @ time of consent renewal • Water storage prohibited in mainstems of Selwyn/Waikirirkiri and Waianiwaniwa Rivers

  8. Cultural Landscape/Values Management Area • Farm Environment Plan mid 2015 > 10ha • Current permitted activities impacted: • New domestic on-site waste water systems (Lake Area) • Vegetation clearance by local authorities (subject to land drainage plan) • Discharge of drainage water (to a river, lake or wetland within Lake Area) • Community sewage schemes – additional policy direction • Additional matter of discretion for resource consents

  9. Water quality – Selwyn Waihora • Catchment Nitrogen load limit for farming activities (95% of catchment load) • Community sewage and industrial and trade discharges to land managed to meet nitrogen load limits (5% of catchment load) & operate at Best Practicable Option (BPO) • New Schedule of Practices for farming activities • More extensive use of Farm Environment Plans • Regional stock access exclusion rules additionally applied to drains

  10. Farm Environment Plans (FEP) • Mid 2015 (Lake Area of Cultural Landscape/Values Management Area) • 1 January 2017 > 50ha • 1 January 2022 20-50ha

  11. Nitrogen limits Catchment load limits Farming activities: 4830 t/N/year Good Management Practice Maximum Feasible Mitigation Community Sewage/Industrial and Trade Waste: 168 t/N/year CPW load limit Property scale controls outside CPW

  12. Farming Activities (not supplied with water from CPW) • Undertake a ‘nitrogen loss calculation’ (average loss over last 4 years) <15 kg/N/ha/yr (permitted) • Increase up to 15 kg/N/ha/yr: FEP requires operate @ good management practice loss rates from 2017 > 15 kg/N/ha/yr (consented from 2017) • Pre 2017 subject to nitrogen baseline • 2017 GMP loss rates ( for ‘baseline land use’ 2009-2013 land use) • 2022 Improve GMP loss rates (to be met at latest by 2037)

  13. Baseline and Target N-loss through till 2017 (>15 kg/N/ha)

  14. Impact of 2017 & 2022 reductions (>15 kg/N/ha) 2037

  15. Timeline – not supplied with water from CPW Improved GMP loss rates > 15kgN/ha/yr GMP N loss rates (2009-2013 land use) > 15kg/N/ha not exceed nitrogen baseline > 15kgN/ha/yr resource consent Nitrogen baseline 2009 2013 2015 2017 2022 to 2037 Scheduleof Practices FEP properties > 50ha FEP properties in Cultural Landscape/Values Area > 10ha FEP properties 20 – 50ha GMP is Good Management Practice. GMP N loss rates provided by Matrix of Good Management Practice being developed by Primary Sector and ECan, due 2015

  16. Central Plains Water 1742 tonnes/N/yr 2017 1944 tonnes/N/yr 2022 30,000ha Current irrigated land 30,000ha Current dry land Load limit Current Irrigated land uses operating at GMP New irrigated land use operating at Improved Good Management Practice (2022 mitigation levels) Current irrigated land use operating at Improved Good management Practice (2022 mitigation levels) New irrigated land use operating at Improved Good management Practice (2022 mitigation levels) * Up to CPW as how to manage to load limits

  17. Timeline – Supplied with water from CPW CPW load limit 2017* CPW consent conditions CPW load limit 2022^ > 15kg/N/ha not exceed nitrogen baseline Nitrogen baseline 2009 2013 2015 2017 2022 to 2037 Schedule of Practices * New at 2022 loss rates, existing at GMP ^ New and existing at 2022 loss rates CPW supplies water

  18. http://ecan.govt.nz/selwyn-waihora

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