Narrabeen Lagoon Estuary Management Plan - Warringah Council ...

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IMPLEMENTATION 5-6 Table 5.2 Management Options Incorporating REMEDIATION WORKS Management Option / Strategy Issues Addressed Expected Outcomes Specific Actions Implementati on Timeframe * Indicative Costs * Maintenance * Requirements Relevant LGA Responsibilities Comments REMEDIATION WORKS Install more SQIDs within the Narrabeen Lagoon catchment (Option 1.2: Rank 3/20) Plant reed beds in front of eroding foreshores (Option 23.1: Rank 6/20) Nutrient runoff Sediment runoff Bank Erosion Habitat enhancement Reduced sediment and pollutant loads to Narrabeen Lagoon by increased collection capacity in upper catchment areas Recession of shoreline prevented due to protection afforded by nearshore reed beds • Endorse implementation of Northern Beaches SWMP 2002 - 2003 nil nil • Seek funding for installation of new SQIDs On-going nil nil • Review effectiveness of new SQIDs outlined in SWMP given latest technology in pollutant reduction methodology and techniques 2002 - 2003 $5,000 nil • Consider feasibility of other new SQID locations, if necessary 2002 - 2003 $5,000 nil • Prioritise locations for new SQIDs 2002 - 2003 • When funding becomes available, construct SQIDs in agreed priority order • Investigate opportunities for treatment of existing development by new SQIDs to be constructed for future development within Narrabeen Lagoon catchment • Identify areas suitable for Phragmites planting, as characterised by eroding foreshores with shallow underwater slopes • Select a trial planting area and erect wind wave barrier boom around site, if necessary • Plant reed stock in trial area, using existing plants as stock, and monitor progress • Erect signage in carparks outlining locations of designated small boat launching areas, with fines for undesignated launching On-going On-going Warringah Pittwater Warringah Pittwater Warringah Pittwater Warringah Pittwater $3,000 nil Warringah $1.5 million nil $40,000 per annum, based on SWMP SQID $5,000 per annum based on review of all DAs to consider possibilities of amalgamation Pittwater Warringah Pittwater Warringah Pittwater NLJE/FMC NLJE/FMC Warringah and Pittwater Councils, DLWC, NSW Fisheries Warringah and Pittwater Councils Warringah and Pittwater Councils Warringah and Pittwater Councils, developers, RTA Warringah and Pittwater Councils 2002 - 2003 $3,000 nil Warringah Warringah Council, DLWC, NSW Fisheries 2002 – 2003 $5,000 nil Warringah Warringah Council, DLWC, NSW Fisheries 2002 – 2003 $3,000 $1,000 for weeding and replacement 2004 - 2006 $1,000 $200 pa for cleaning and replacement Warringah Warringah Pittwater Warringah Council, DLWC, community groups, Fisheries Warringah and Pittwater Councils Refer to Northern Beaches Stormwater Management Plan (PBP, 1999) for details of proposed SQIDs within the Narrabeen Lagoon catchment. Including locations, treatment requirements, costings and indicative priorities Each Council to be responsible for SQIDs in their respective LGA Indicative areas have been identified as part of this Plan - refer Figure 5.2 for details of locations Some areas for maintaining / enhancing phragmites beds have also been identified in Pittwater Council’s Conservation and Access Management Plan • Pending results of trial planting, establish wind wave barrier boom around other nominated sites and plant reed stock 2004 – 2006 $5,000 $2,000 for weeding and replacement Warringah Warringah Council, DLWC, community groups, Fisheries • Remove wind wave barrier boom(s) when reeds have re-established and stabilised foreshore 2004 – 2006 nil nil Warringah Warringah Council, DLWC, community groups, Fisheries * Subject to budget constraints I:\N0433 NARRABEEN LAGOON EPS\DOCS\R.N0433.003.03.EMP.DOC 12/3/02 16:03 OCEANICS AUSTRALIA
IMPLEMENTATION 5-7 Table 5.2 Management Options Incorporating REMEDIATION WORKS cont’d. Management Option / Strategy Issues Addressed Expected Outcomes Specific Actions Implementation Timeframe * Indicative Costs * Maintenance * Requirements Relevant LGA Responsibilities Comments REMEDIATION WORKS Develop and implement creek rehabilitation plans for Narrabeen Lagoon tributaries (Option 1.7: Rank 7/20) Develop and implement major Restoration Projects within main tributaries of Lagoon (Option 7.3: Rank 8/20) Nutrient runoff Sediment runoff Habitat restoration Sedimentation Habitat enhancement Improved habitat values of tributary corridors and reduced sediment and pollutant loads to Narrabeen Lagoon through creek stabilization and revegetation Reduced sediment and pollutant loads to Narrabeen Lagoon combined with creation of valuable freshwater habitat / wetlands • Identify the status of any current creek rehabilitation plans 2002 - 2003 $2,000 nil • Prioritise the tributaries of Narrabeen Lagoon, based on the degree of degradation of physical and biological conditions 2002 - 2003 $5,000 nil • Prepare Creek Rehabilitation Plans for tributaries, in priority order 2004 - 2006 $100,000 • Implement Creek Rehabilitation Plans for tributaries, in priority order 2004 - 2006 $120,000 • Review previous Middle Creek Restoration Project EIS 2002 - 2003 $5,000 • Identify suitable locations for major restoration works in tributaries of Narrabeen Lagoon, particularly Mullet Creek, and prioritise based on degree of degradation and potential benefits to lagoon: refer to Section 4.6 for preliminary prioritisation list. • Prepare detailed design and environmental impact assessment for highest priority restoration project • Seek funding for implementation of restoration project in highest priority location Periodic review of Plans community groups required for weeding etc 2002 - 2003 $5,000 nil 2002 - 2003 $80,000 2004 - 2006 nil • Once funding is secured, implement highest priority restoration project 2004 - 2006 $2 million $40,000 per annum • Prepare conceptual designs and EISs for other projects in priority order 2007+ $200,000 nil Warringah Pittwater Warringah Pittwater Warringah Pittwater Warringah Pittwater Warringah and Pittwater Councils Warringah and Pittwater Councils, NPWS, NSW Fisheries NLJE/FMC, Warringah and Pittwater Councils Warringah and Pittwater Councils, community groups, NPWS nil Warringah Warringah Council, DLWC, NPWS, NSW Fisheries nil nil Warringah Pittwater Warringah or Pittwater Warringah or Pittwater Warringah or Pittwater Warringah Pittwater Warringah and Pittwater Councils, DLWC, NPWS, NSW Fisheries Warringah or Pittwater Council NLJE/FMC Warringah or Pittwater Council Warringah and Pittwater Councils Creek rehabilitation was proposed as part of the Northern Beaches SWMP, the Narrabeen Lagoon CAMPs and the Warriewood Valley Water Management Specification Warringah Council is currently carrying out a creek management study for its urban creeks, and Pittwater Council is addressing creek rehabilitation as part of the Warriewood Valley Landscape Masterplan, 2000 Refer Figure 5.3 for details of tributary locations Refer to previous Middle Creek Restoration Project EIS (Warringah Council, 1990) Concept designs for creek rehabilitation / restoration of Nareen Creek and Narrabeen Creek have already been prepared by Pittwater Council Works can be carried out concurrently depending on availability of funding Refer Figure 5.3 for details of possible locations • Seek additional funding for other similar projects, and implement when possible 2007+ $5 million + $100,000 + Warringah Pittwater NLJE/FMC * Subject to budget constraints I:\N0433 NARRABEEN LAGOON EPS\DOCS\R.N0433.003.03.EMP.DOC 12/3/02 16:03 OCEANICS AUSTRALIA
Page 1 and 2: I:\N0433 NARRABEEN LAGOON EPS\DOCS\
Page 3 and 4: DOCUMENT CONTROL SHEET WBM Oceanics
Page 5 and 6: ACKNOWLEDGEMENTS II ACKNOWLEDGEMENT
Page 7 and 8: CONTENTS IV 4.2 Prioritised Managem
Page 9 and 10: INTRODUCTION 1-1 1 I:\N0433 NARRABE
Page 11 and 12: INTRODUCTION 1-2 Narrabeen Lagoon i
Page 13 and 14: INTRODUCTION 1-4 • Influence futu
Page 15 and 16: SUMMARY OF ESTUARY PROCESSES 2-2 SU
Page 17 and 18: SUMMARY OF ESTUARY PROCESSES 2-3 0
Page 19 and 20: SUMMARY OF ESTUARY PROCESSES 2-5 2.
Page 21 and 22: SUMMARY OF COMMUNITY CONSULTATION C
Page 23 and 24: SUMMARY OF COMMUNITY CONSULTATION C
Page 25 and 26: PRIORITISED MANAGEMENT OBJECTIVES A
Page 29 and 30: PRIORITISEDMANAGEMENT OBJECTIVES AN
Page 39 and 40: IMPLEMENTATION 5-2 IMPLEMENTATION 5
Page 41 and 42: IMPLEMENTATION 5-3 accompany Tables
Page 43: IMPLEMENTATION 5-5 Table 5.1 Manage
Page 47 and 48: IMPLEMENTATION 5-9 Table 5.2 Manage
Page 49 and 50: IMPLEMENTATION 5-11 Table 5.4 Manag
Page 55 and 56: IMPLEMENTATIO N 5-17 Figure 5.1 Key
Page 57 and 58: IMPLEMENTATION 5-19 Figure 5.3 Trib
Page 59 and 60: IMPLEMENTATION 5-21 5.5 Funding Req
Page 61 and 62: IMPLEMENTATION 5-23 • Removal of
Page 63 and 64: A-1 APPENDIX A: NARRABEEN LAGOON JO
Page 65 and 66: C-1 APPENDIX C: COMMENTS RECEIVED F
Page 67 and 68: C-3 NSW Fisheries • Fisheries Res
Page 69 and 70: C-5 • Option 11.3. The Academy su
Page 71 and 72: C-7 Waterways Authority Estuary Man
Page 73 and 74: D-2 Pittwater Council CAMP KEY 1 2
Page 75 and 76: D-4 Warringah Council CAMP 1 2 3 4
Page 77 and 78: D-6 5 3 2 1 6 29 30 7 19 18 28 27 2
Page 79 and 80: LB\ENVRO\5930\255 PAGE B255 ATTACHM

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