selwyn- waihora zip addendum & variation 1
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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 : - PowerPoint PPT PresentationTRANSCRIPT
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:• The lake ‘Te Waihora’ and its margins are a taonga
for Ngāi Tahu• Agriculture, underpinned by reliable water supply, is
a significant contributor to the economy
Overview of current situation situation
Decline in health of Te Waihora has led to increase in algal blooms.Mahinga kai not considered safe to eat.
Reliable water supply is critical to a high-value agricultural economy
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
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.
Phosphorus has accumulated in lake-bed sediments
Lag in groundwater system of 10-30 yrs
Flows in lowland streams & Selwyn/Waikirikiri have decreased by about 15-20%.
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
Recommended package achieved through SW Sub-regional Section of LWRP and other actions.
Delivering Canterbury Water Management Strategy (CWMS) byimproving cultural & environmental outcomes in catchment while maintaining farm viability & economic growth
High nitrate concentrations in lowland streams & shallow groundwater.
see www.ecan.govt.nz/selwyn-waihora
Selwyn Waihora ZIP AddendumGoals, pathways and outcomes
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
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
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
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
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
Farm Environment Plans (FEP)
• Mid 2015 (Lake Area of Cultural Landscape/Values Management Area)
• 1 January 2017 > 50ha• 1 January 2022 20-50ha
Nitrogen limits Catchment load limits Farming activities: 4830 t/N/year
CPW load limit
Good Management Practice
MaximumFeasible Mitigation
Community Sewage/Industrial and Trade Waste: 168 t/N/year
Property scale controls outside CPW
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)
Baseline and Target N-loss through till 2017 (>15 kg/N/ha)
2009/10 2010/11 2011/12 2012/13 Target 13-14
Target 14-15
Target 15-16
Target 16-17
0
5
10
15
20
25
30
35
40
45
50
Actual / Target N loss 2009-2017 (Presuming GMP takes effect 1 Jan 2017 and is a little lower than the base-
line)
Annual N Loss
Baseline 09-13
Series3
Varaition 1 consent threshold
kgN/
ha
Impact of 2017 & 2022 reductions (>15 kg/N/ha)
2037
2009
/10
2010
/11
2011
/12
2012
/13
Target
13-14
Target
14-15
Target
15-16
Target
16-17
Foreca
st 17
-18*
Foreca
st 18
-19
Foreca
st 19
-20
Foreca
st 20
-21
Foreca
st 21
-22**
Foreca
st 22
-23
Foreca
st 23
-240
5
10
15
20
25
30
35
40
45
50
Actual / Target / Forecast N loss 2009-2022 (*Presuming GMP takes effect 1 Jan 2017 and is a little lower than the base-
line and 30% reduction below GMP in 2022)
Annual N Loss
Baseline 09-13
Series3
Varaition 1 consent threshold
kgN/
ha
Timeline – not supplied with water from CPW
2009 2013 2015 2022 to 20372017
Nitrogen baseline
FEPproperties in Cultural Landscape/Values Area > 10ha
FEP properties > 50ha
FEP properties 20 – 50ha
GMP N loss rates (2009-2013 land use)
> 15kgN/ha/yr resource consent
Improved GMP loss rates > 15kgN/ha/yr
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
Schedule of Practices
> 15kg/N/ha not exceed nitrogen baseline
30,000ha Current irrigated
land
2017 Current Irrigated land uses operating at GMP
New irrigated land use operating at Improved
Good Management Practice (2022
mitigation levels)
30,000ha Current dry land
2022
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)
1944 tonnes/
N/yr
1742 tonnes/
N/yr
Load limit
Central Plains Water
* Up to CPW as how to manage to load limits
Timeline – Supplied with water from CPW
2009 2013 2015 2022 to 20372017Nitrogen baseline
Schedule of Practices
CPW supplies water
CPW consent conditions
CPW load limit 2017* CPW load
limit 2022^
* New at 2022 loss rates, existing at GMP
^ New and existing at 2022 loss rates
> 15kg/N/ha not exceed nitrogen baseline
http://ecan.govt.nz/selwyn-waihora