Pty Limited ABN: 30 083 169 091 Amendment to a Proposal Submitted as Development Application (DA 94-4-2004) for an Extension to the Calga Sand Quarry prepared by: on behalf of: ROCLA PTY LIMITED AMENDMENT TO 2004 PROPOSAL 1 ROCLA PTY LIMITED Calga Sand Quarry Extension Report No. 264/25 Pty Limited ABN: 30 083 169 091 Amendment to a Proposal Submitted as Development Application (DA 94-4-2004) for an Extension to the Calga Sand Quarry Prepared by: On Behalf of: R.W. Corkery & Company Pty. Limited Rocla Pty Limited Geological & Environmental Consultants RMB 1215 Peats Ridge Road 75 Kite Street CALGA NSW 2250 ORANGE NSW 2800 ABN: 31 002 033 712 ABN: 30 083 169 091 Telephone: (02) 6362 5411 Telephone: (02) 4375 1151 Facsimile: (02) 6361 3622 Facsimile: (02) 4375 1171 June 2005 Ref No. 264/25 R. W. CORKERY & CO. PTY. LIMITED ROCLA PTY LIMITED 2 AMENDMENT TO 2004 PROPOSAL Report No. 264/25 Calga Sand Quarry Extension This Copyright is included for the protection of this document COPYRIGHT © R.W. Corkery & Co. Pty. Limited 2005 and © Rocla Pty Limited 2005 All intellectual property and copyright reserved. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act, 1968, no part of this report may be reproduced, transmitted, stored in a retrieval system or adapted in any form or by any means (electronic, mechanical, photocopying, recording or otherwise) without written permission. Enquiries should be addressed to R.W. Corkery & Co. Pty. Limited. R. W. CORKERY & CO. PTY. LIMITED AMENDMENT TO 2004 PROPOSAL 3 ROCLA PTY LIMITED Calga Sand Quarry Extension Report No. 264/25 CONTENTS Page 1 INTRODUCTION .............................................................................................................5 2 BACKGROUND ..............................................................................................................5 3 2005 AMENDED PROJECT SITE DESCRIPTION ..........................................................6 4 PERMISSIBILITY OF THE 2005 AMENDED PROPOSAL............................................16 4.1 General Permissibility........................................................................................... 16 4.2 Proposed 2005 Amended Quarry Design ............................................................. 20 5 ENVIRONMENTAL IMPACTS.......................................................................................21 5.1 Introduction .......................................................................................................... 21 5.2 Surface Water ...................................................................................................... 21 5.3 Groundwater ........................................................................................................ 22 5.3.1 Groundwater Drawdown and Bore Hole Yield.......................................22 5.3.2 Groundwater In-flow to the Proposed 2005 Amended Quarry Extension .............................................................................................26 5.3.3 Conclusion ...........................................................................................26 5.4 Soils and Land Capability ..................................................................................... 26 5.5 Noise.................................................................................................................... 26 5.5.1 Construction Noise ...............................................................................26 5.5.2 Operational Noise.................................................................................28 5.6 Air Quality............................................................................................................. 28 5.7 Ecology ................................................................................................................ 28 5.7.1 Flora.....................................................................................................28 5.7.2 Fauna...................................................................................................29 5.8 Transportation ...................................................................................................... 29 5.9 Aboriginal Heritage............................................................................................... 29 5.10 Visibility ................................................................................................................ 29 5.11 Land Use.............................................................................................................. 30 5.12 Socio-Economic Climate ...................................................................................... 30 5.12.1 Introduction ..........................................................................................30 5.12.2 Specific Residential Impacts.................................................................30 5.12.3 Local Impacts .......................................................................................34 5.12.4 Conclusion ...........................................................................................36 5.13 Planning Instrument Compliance.......................................................................... 36 6 ENVIRONMENTAL MANAGEMENT AND MONITORING ............................................36 7 CONCLUSION...............................................................................................................37 8 REFERENCES ..............................................................................................................37 FIGURES Figure 1 2005 Amended Project Site Layout ...................................................................... 7 Figure 2 2005 Amended Quarry Design............................................................................. 8 Figure 3 2005 Amended Extraction Sequence ................................................................. 11 Figure 4 2005 Amended Final Landform .......................................................................... 13 Figure 5 Planning Context................................................................................................ 17 Figure 6 Planning Context: SREP 8 ................................................................................. 19 Figure 7 Groundwater Drawdown..................................................................................... 23 Figure 8 Land Ownership Surrounding the Project Site.................................................... 31 R. W. CORKERY & CO. PTY. LIMITED ROCLA PTY LIMITED 4 AMENDMENT TO 2004 PROPOSAL Report No. 264/25 Calga Sand Quarry Extension CONTENTS Page TABLES Table 1 In-Situ Friable Sandstone Resources and Proposed Sand Recovery................... 9 Table 2 Calculations of Silt Produced and Available Storage.......................................... 10 Table 3 Silt Production - Storage Availability................................................................... 15 Table 4 Three Dimensional Modelling Impact Assessment ............................................. 22 Table 5 Construction Noise............................................................................................. 27 Table 6 Calculated LAeq Operational Noise Levels Exceeded for 10% of 15 Minute Periods, dB(A).................................................................................................... 28 ANNEXURES Annexure 1 C.M. Jewell & Associates Pty Ltd – Three-dimensional modelling for the proposed Calga Sand Quarry extension for R.W. Corkery & Co. Pty. Limited – Ref J0290.55R Annexure 2 C.M. Jewell & Associates Pty Ltd – Response to request for further information – Ref J0290.57L Annexure 3 C.M. Jewell & Associates Pty Ltd – Technical appraisal of proposed impact mitigation strategies – Ref J0290.58L Annexure 4 C.M. Jewell & Associates Pty Ltd – Response to request for additional information on water ‘make, local impacts and existing water licences – Ref J0290.61L Annexure 5 C.M. Jewell & Associates Pty Ltd – Revised Three-dimensional modelling for the 2005 amended proposal – Ref (J0290.64L) Annexure 6 Wilkinson Murray Pty Ltd – Additional information provided regarding construction noise at surrounding residences – Ref RWC 030205 RB DIPNR Annexure 7 Wilkinson Murray Pty Ltd – Results of revised operational noise modelling following the implementation of additional noise controls – Ref 01127C Annexure 8 Wilkinson Murray Pty Ltd – Results of revised operational noise modelling at the Gazzana Residence – Ref 01127D Annexure 9 Anne Clements & Associates Pty Ltd – Target Flora Surveys and Assessment for the Proposed Calga Sand Quarry Extensions – Ref 26424_Flora_Pt1_Pt2 Annexure 10 Abel Ecology – Red-crowned Toadlet Survey and Assessment for Rocla Materials Pty Ltd for the Proposed Calga Sand Quarry Extension – Ref 1 Rocla report 2 March 2005 Annexure 11 Landscape Management Plan for the proposed Calga Sand Quarry extension, prepared by R.W. Corkery & Co. Pty Limited. R. W. CORKERY & CO. PTY. LIMITED AMENDMENT TO 2004 PROPOSAL 5 ROCLA PTY LIMITED Calga Sand Quarry Extension Report No. 264/25 1 INTRODUCTION Rocla Pty Limited (“Rocla”) submitted a development application (DA 94-4-2004) on 27 May 2004 supported by an Environmental Impact Statement to extend the Calga Sand Quarry on Lot 2, DP 229889 and Lot 121, DP 755221 by 22.3ha (the “2004 proposal”). As a consequence of a number of issues raised during the assessment of the proposed development, Rocla has decided to scale back the