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11 October 2018 MARLBOROUGH DISTRICT COUNCIL TELEPHONE (0064) 3 520 7400 15 SEYMOUR STREET FACSIMILE (0064) 3 520 7496 PO BOX 443, BLENHEIM 7240 EMAIL [email protected] NEW ZEALAND WEB www.marlborough.govt.nz 5 October 2018 Record No: 18223360 File Ref: D050-001-E01 Ask For: Nicole Chauval Notice of Committee Meeting – Thursday, 11 October 2018 A meeting of the Environment Committee will be held in the Council Chambers, District Council Administration Building, 15 Seymour Street, Blenheim on Thursday, 11 October 2018 commencing at 9.00 am. BUSINESS As per Agenda attached. MARK WHEELER CHIEF EXECUTIVE Meeting of the ENVIRONMENT COMMITTEE to be held in the Council Chambers, 15 Seymour Street, on THURSDAY, 11 OCTOBER 2018 commencing at 9.00 am Committee Clr D D Oddie (Chairperson) Clr G A Hope (Deputy) Clr J A Arbuckle Clr T E Hook Clr C J Brooks Clr L M Shenfield Clr N P Taylor Mayor J C Leggett Mr E R Beech (Rural representative) Departmental Head Mr H Versteegh (Manager, Regulatory Department) Staff N Chauval (Committee Secretary) In Public Page 1. Apologies ........................................................................................................................................ 1 2. Declaration of Interests .................................................................................................................. 1 3. Resource Hearing Commissioner Decision .................................................................................. 2 4. Wairau Plain Liquefaction Risk Assessment .................................................................................. 3 5. Report on Estuary Monitoring 2018 .............................................................................................. 4 6. Ecologically Significant Marine Sites Expert Panel Report ..........................................................11 7. Marlborough Sounds Water Quality Monitoring Report ...............................................................14 8. Marlborough Landscape Group - New Strategy Document .........................................................19 9. Catchment Enhancement .............................................................................................................26 10. State of the Environment Surface Water Quality Monitoring Report 2018 ..................................44 11. Animal Control Sub-Committee ....................................................................................................47 12. Environmental Health Activity Summary for 2017/18 and Review of Survey Results ................54 13. Winery Wastewater and Grape Marc Monitoring Report .............................................................58 14. Wairau River Safety .....................................................................................................................64 15. Water-Ski Lanes in the Marlborough Sounds ..............................................................................65 16. Road Name Request - Waikawa ..................................................................................................69 17. Road Name Request - Grovetown ...............................................................................................73 18. Road Name Request - Kaiuma Bay .............................................................................................77 19. Appointment of Hearings Commissioner......................................................................................83 20. Appeals Update ............................................................................................................................89 21. Information Package ....................................................................................................................91 22. Decision to Conduct Business with the Public Excluded .............................................................92 Public Excluded 23. Minutes ........................................................................................................................................93 1. Apologies An apology from Clr L M Shenfield has been received. 2. Declaration of Interests Members are reminded of the need to be vigilant to stand aside from decision making when a conflict arises between their role as a member and any private or other external interest they might have. Environment Committee - 11 October 2018 - Page 1 3. Resource Hearing Commissioner Decision (also refer to separate attachment) Resource Hearing Commissioner Hearing held on 16 August 2018 (U080211) A full copy of the Decision is separately attached to the Agenda. A summary of this Decision follows: Schedule of Resource Hearing Commissioner Decisions Pages Date Subject Decision 1 - 35 16 August 2018 Mount Riley Wines Limited - REFUSED Application for Resource Consent - Subdivision (Allotment Creation) and Land Use Subdivision (Allotment Creation) and (Activity) to subdivide Lot 2 DP 11629 and Lot 2 DP Land Use (Activity) - 112 Vickerman 477086 into two allotments. Street, Grovetown (U180211) Environment Committee - 11 October 2018 - Page 2 4. Wairau Plain Liquefaction Risk Assessment (Clr Oddie) (Report prepared by Peter Davidson and Alan Johnson) E345-007-001 Purpose 1. To present the results of recent liquefaction risk assessment work coordinated by the University of Auckland. 2. Liam Wotherspoon from Auckland University School of Engineering will provide a presentation (20 minutes). Background 3. Marlborough is one of New Zealand’s most seismically active regions. The Wairau Plain is bisected by the Wairau Fault and the Awatere River Valley by the Awatere Fault. These faults represent two of the five east coast extensions of the main Alpine Fault which runs the length of the South Island mountain chain. 4. Following the Christchurch earthquakes MDC assessed the liquefaction risk for land surrounding Blenheim which at the time was being considered for future subdivision for human settlement or rezoning. On-site testing enabled zoning decisions to be made and hazard mapping in the MEP. 5. Following the Kaikoura Earthquake, MDC has worked closely with researchers from the Universities of Auckland and Canterbury to improve understanding of the drivers for lateral spread along the Lower Ōpaoa River/Lower Wairau River channels, and liquefaction affecting land in the Lower Wairau area generally. 6. There were strong correlations between liquefaction and certain geomorphological or geological formations including fossil river beds, but the reason why one side of the Ōpaoa River channel subsided while the other didn’t isn’t fully understood yet. 7. The researchers led by Liam Wotherspoon from the University of Auckland’s School of Engineering also attempted to forecast the Wairau Plain liquefaction risk for a large earthquake using a model of ground conditions and simulating varying levels of seismic shaking. 8. Research is continuing in Blenheim and Renwick using portable seismographs to measure land strength and sediment properties. More work is being considered for the Lower Wairau Plain and Blenheim areas that would be a prerequisite for preparing a planning aligned liquefaction risk classification. 9. The main reason for MDC assessing liquefaction vulnerability is to further inform its own planning and consenting processes. There are also benefits for the general public and land owners having knowledge about the strength of their land and its susceptibility to earthquakes of differing magnitude. Summary 10. Research led by Auckland University is continuing on the drivers of liquefaction risk for the Wairau Plain. 11. This knowledge will be used to refine the current liquefaction boundary line in the Marlborough Environment Plan to guide planning and consenting. 12. Marlborough District Council are storing geotechnical information in its WELLS & SEDIMENTS database which will assist with refining the liquefaction risk assessment in the future. RECOMMENDED That the information be received. Environment Committee - 11 October 2018 - Page 3 5. Report on Estuary Monitoring 2018 (also refer separate reports available on Council’s website) (Clr Hope) (Report prepared by Dr Steve Urlich) E325-006-001-03, E325-006-010-03, E325-006-013-03, E325-006-015-03 Purpose 1. To present the results of the ecological surveys of ten estuaries undertaken last summer. 2. Separate attachments: Estuary monitoring reports for Greville Harbour/Wharariki (Rangitoto Ki Te Tonga/D’Urville Island); Tennyson Inlet and Kenepuru Head (Pelorus Sound/Te Hoiere); Grove Arm and Whatamango Bay (Queen Charlotte Sound/Tōtaranui). 3. The above reports are available on Council’s website (refer https://www.marlborough.govt.nz/your- council/meetings?item=id:20lcey8ln17q9skvdhen, printed copies available on request). 4. Leigh Stevens, Wriggle Limited, will present the Tennyson Inlet and Grove Arm reports. (15 minutes). Background 5. Healthy estuaries are productive ecosystems that provide an array of habitats for large, diverse populations of birds, fish and aquatic invertebrates. Healthy estuaries also provide social, cultural and recreational benefits, such as shellfish gathering, fishing, swimming and nature studies. 6. Estuaries are also sensitive receiving environments. The condition of estuaries reflects the effects of land use and other stressors. Results from monitoring can be used to explore and manage catchment influences, where these have been shown to cause negative effects to estuarine health. 7. Council uses the monitoring methods set out in the National Estuary Monitoring
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