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Hornsby Shire Council HORNSBY SHIRE COUNCIL BEROWRA CREEK ESTUARY MANAGEMENT STUDY AND MANAGEMENT PLAN January 2000 HORNSBY SHIRE COUNCIL BEROWRA CREEK ESTUARY MANAGEMENT STUDY AND MANAGEMENT PLAN January 2000 Webb, McKeown & Associates Pty Ltd Prepared by: ___________________________ Level 2, 160 Clarence Street, SYDNEY 2000 Telephone: (02) 9299 2855 Facsimile: (02) 9262 6208 Verified by: ____________________________ 98122:BerowraEMSWord:M6 BEROWRA CREEK ESTUARY MANAGEMENT STUDY AND MANAGEMENT PLAN TABLE OF CONTENTS PAGE EXECUTIVE SUMMARY AND ESTUARY MANAGEMENT PLAN i to xxvii 1. INTRODUCTION....................................................................................................................1 1.1. This Management Study............................................................................................................. 1 1.2. The Estuary Management Program.......................................................................................... 1 1.3. The Wider Planning Management Context.............................................................................. 2 1.4. Statement of Joint Intent............................................................................................................ 2 1.5. Community Consultation ........................................................................................................... 4 2. FEATURES OF THE STUDY AREA ....................................................................................6 2.1. Catchment.................................................................................................................................... 6 2.1.1. Location ................................................................................................................................................... 6 2.1.2. Topography and Soil Landscapes ............................................................................................................ 6 2.1.3. Climate and Climate Change ................................................................................................................... 7 2.1.4. Vegetation................................................................................................................................................ 7 2.1.5. Existing Development.............................................................................................................................. 7 2.1.6. Future Development................................................................................................................................. 8 2.1.7. Sewage Treatment.................................................................................................................................... 8 2.2. Estuary......................................................................................................................................... 9 2.2.1. Description............................................................................................................................................... 9 2.2.2. Hydrodynamics...................................................................................................................................... 10 2.2.3. Sediment Dynamics ............................................................................................................................... 13 2.2.4. Water Quality......................................................................................................................................... 15 2.2.5. Ecology.................................................................................................................................................. 17 2.2.6. Human Development ............................................................................................................................. 18 2.2.7. Human Use ............................................................................................................................................ 20 3. EXISTING CATCHMENT MANAGEMENT AND CONTROL ........................................22 3.1. Management and Control Authorities .................................................................................... 22 3.1.1. Local Government ................................................................................................................................. 22 3.1.2. State Government .................................................................................................................................. 23 3.1.3. Commonwealth Government ................................................................................................................. 24 3.1.4. Other Statutory Bodies........................................................................................................................... 24 3.2. Specific Council Estuary Management Plans......................................................................... 25 3.2.1. Berowra Creek Water Quality Management Strategy............................................................................ 25 3.2.2. Berowra Catchment Stormwater Management Plan ..............................................................................26 3.2.3. Berowra Waters Plan of Management ................................................................................................... 26 3.3. Other Estuary Use and Control Plans..................................................................................... 28 3.3.1. Local Environmental Plan...................................................................................................................... 28 3.3.2. Development Control Plans ................................................................................................................... 29 3.3.3. Berowra Catchment Management Committee Strategic Plan ................................................................ 31 3.3.4. Sewage System Management Process ................................................................................................... 32 3.3.5. Berowra Valley Regional Park Plan ...................................................................................................... 33 3.3.6. National Park and Nature Reserve Plan of Management .......................................................................35 3.3.7. Hawkesbury-Nepean River System Habitat Protection Plan ................................................................. 36 3.3.8. Berowra Creek Waterway Boating Map................................................................................................ 37 4. ISSUES ASSESSMENT AND OBJECTIVES.....................................................................38 4.1. General....................................................................................................................................... 38 4.2. Estuary Management................................................................................................................ 38 4.2.1. Data Collection Co-ordination............................................................................................................... 38 4.2.2. Human Health and Safety ...................................................................................................................... 39 4.2.3. Estuary Management ............................................................................................................................. 39 4.3. Water and Sediment Quality ................................................................................................... 40 4.3.1. Catchment Sourced Pollution................................................................................................................. 40 4.3.2. Freshwater Inputs................................................................................................................................... 40 4.3.3. Boat Sourced Pollution .......................................................................................................................... 41 4.3.4. River Settlement Sourced Pollution....................................................................................................... 41 4.3.5. Heavy Metal Accumulations.................................................................................................................. 41 4.3.6. Oil Spills ................................................................................................................................................ 41 4.4. Human Use ................................................................................................................................ 42 4.4.1. Estuary Recreation Facilities ................................................................................................................. 42 4.4.2. Estuary Tourism Facilities ..................................................................................................................... 42 4.4.3. Boat Moorings ....................................................................................................................................... 43 4.4.4. Sedimentation/Navigation...................................................................................................................... 43 4.4.5. Commercial and Recreational Fishing ................................................................................................... 44 4.4.6. Aquaculture...........................................................................................................................................
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