SR 2007-028 Waikato Coastal Survey of Waihi and Tairua.Pdf
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BIBLIOGRAPHIC REFERENCE Becker, J. S.; Stewart, C.; Coomer, M.; Hume, T.; Blackett, P., Davies, A. 2007. Managing our coast: The tabulated results of two community surveys undertaken at Tairua and Waihi Beach, GNS Science Report 2007/28. 246p. J.S. Becker, GNS Science, PO Box 30368, Lower Hutt C. Stewart, Private Consultant, Brooklyn, Wellington M. Coomer, GNS Science, PO Box 30368, Lower Hutt T. Hume, National Institute of Water and Atmospheric Research, PO Box 11115, Hamilton P. Blackett, AgResearch, Private Bag 3123, Hamilton A. Davies, Environment Waikato, PO Box 4010, Hamilton This report was prepared for Environment Waikato using data collected by GNS and NIWA as part of collaborative research jointly funded by Environment Waikato and the Foundation for Research Science and Technology, New Zealand. © Institute of Geological and Nuclear Sciences Limited, 2007 ISSN 1177-2425 ISBN 978-0-478-09994-2 i CONTENTS ABSTRACT.............................................................................................................................VI KEYWORDS ...........................................................................................................................VI 1.0 INTRODUCTION.............................................................................................................1 2.0 OVERVIEW AND OBJECTIVES ....................................................................................2 3.0 COMPARATIVE GEOGRAPHIC SETTINGS OF THE COMMUNITIES ........................3 3.1 Tairua.....................................................................................................................4 3.2 Waihi Beach...........................................................................................................4 3.3 Whangapoua .........................................................................................................5 4.0 METHOD ........................................................................................................................5 4.1 Choice of methods.................................................................................................5 4.2 Questionnaire design.............................................................................................6 4.3 Sampling strategy and survey delivery details.......................................................7 4.3.1 Postal questionnaires...............................................................................7 4.3.2 Face-to-face interviews............................................................................9 4.4 Data analysis and reporting ...................................................................................9 5.0 SUMMARY OF RESULTS............................................................................................10 5.1 Tairua...................................................................................................................10 5.1.1 Demographics........................................................................................10 5.1.2 Use of the beach and what respondents value about the coast ............11 5.1.3 Experience and understanding of coastal hazard issues.......................11 5.1.4 Who should fund erosion measures for public and private property?....12 5.1.5 Erosion threat at Tairua’s Ocean Beach................................................12 5.1.6 Coastal management at Tairua’s Ocean Beach ....................................13 5.2 Waihi beach .........................................................................................................14 5.2.1 Demographics........................................................................................14 5.2.2 Use of the beach and what respondents value about the coast ............15 5.2.3 Experience and understanding of coastal hazard issues.......................15 5.2.4 Who should fund erosion measures for public and private property?....16 5.2.5 Erosion threat at Waihi Beach ...............................................................16 5.2.6 Coastal management at Waihi Beach....................................................17 6.0 ACKNOWLEDGEMENTS.............................................................................................18 7.0 REFERENCES .............................................................................................................18 FIGURES Figure 1 Map showing the location of Tairua, Waihi Beach and Whangapoua on the Coromandel Peninsula, New Zealand. ...................................................................................................................3 Figure 2 Approximate locations of where surveys were returned from in Tairua..............................................7 Figure 3 Approximate locations of where mailed surveys were returned from in Waihi Beach. .......................8 TABLES Table 1 Location, delivery dates and return rates for postal questionnaires ...................................................9 GNS Science Report 2007/28 i APPENDICES Appendix 1 Data tables and figures ....................................................................................................................21 A1.1 Tairua Coastal Management Survey results ....................................................................................21 A1.2 Waihi Coastal Management Survey results ...................................................................................101 Appendix 2 Tairua questionnaire ......................................................................................................................211 Appendix 3 Waihi Beach questionnaire ............................................................................................................223 FIGURES Figure 4 Q1 - Choose the option that best describes your situation: (tick one option only)............................21 Figure 5 Q2 - If you own this property, how long ago did you buy it? (tick one option only)...........................22 Figure 6 Q4 - Thinking of the past couple of years, which option best describes how often you visit Tairua's ocean beach? (tick one option only)...................................................................................23 Figure 7 Q5 - What do you value about the coast? (Please tick the options in each row that best matches your view) ..........................................................................................................................26 Figure 8 Q6 - Which are the two natural hazards you consider most likely to affect Tairua? .........................30 Figure 9 Q7 - For each of the following statements do you agree or disagree?.............................................32 Figure 10 Q8 - What do you think is the main cause of coastal erosion? (tick one option only).......................35 Figure 11 Q9 - For each of the following statements do you agree or disagree?.............................................38 Figure 12 Q10 - In general, which forms of coastal erosion management do you approve of? (Tick all that apply) ........................................................................................................................................40 Figure 13 Q10 - In general, which forms of coastal erosion management do you approve of? (By property location) .............................................................................................................................40 Figure 14 Q11 – Best long term approach for managing erosion (Tairua respondents)...................................41 Figure 15 Q12 - A good cover of plants on dunes... (tick one option only).......................................................47 Figure 16 Q13 - Building a seawall on a sandy beach... (tick one option only) ................................................48 Figure 17 Q14 - The effect a seawall has on the natural behaviour of a sandy beach... (tick one option) .......49 Figure 18 Q15 and 16 - In general, who should fund erosion measures where (a) private property and (b) public property is at risk? ............................................................................................................52 Figure 19 Q15 - In general, who should fund erosion measures for private property? (By property location) ...........................................................................................................................................52 Figure 20 Q16 - In general, who should fund coastal erosion measures where public property is at risk? (By property location) ..............................................................................................................53 Figure 21 Q18 - Currently, how much of a threat is coastal erosion to Tairua's Ocean Beach? (tick one option only) ......................................................................................................................................58 Figure 22 Q18 - Currently, how much of a threat is coastal erosion to Tairua's Ocean Beach? (By property location) .............................................................................................................................58 Figure 23 Q19 - Thinking about the property that this survey was delivered to, on what timescale is coastal erosion likely to affect this property directly? (tick one option only) .....................................60 Figure 24 Q19. Thinking about the property that this survey was delivered to, on what timescale is coastal erosion likely to affect this property directly? (By property location) ....................................60