Rob Greenaway & Associates Proposed Manapouri Tailrace Amended Discharge: Recreation and Tourism Assessment of Effects Prepared for Meridian Energy Ltd February 2009. Final version www.greenaway.co.nz MTAD Recreation and Tourism Assessment RG&A 1 Proposed Manapouri Tailrace Amended Discharge Recreation and Tourism Assessment of Effects Contents 1 Summary ................................................................................................................................................... 4 1.1 Lakes Te Anau and Manapouri, and the Lower Waiau River ................................................................ 4 1.2 Deep Cove and Doubtful Sound ........................................................................................................... 4 2 Introduction .............................................................................................................................................. 6 2.1 Study aims ............................................................................................................................................ 6 2.2 Method .................................................................................................................................................. 7 2.3 Study area definitions ........................................................................................................................... 7 2.4 Author’s experience .............................................................................................................................. 7 3 Project description ................................................................................................................................... 9 3.1 Historic and current operating regimes ................................................................................................. 9 3.2 Proposed MTAD operating regime...................................................................................................... 10 3.2.1 Lake control ................................................................................................................................ 11 3.2.2 Lower Waiau River ..................................................................................................................... 13 3.2.3 Discharge into Deep Cove .......................................................................................................... 14 4 Existing environment – recreation and tourism .................................................................................. 25 4.1 Lower Waiau River.............................................................................................................................. 25 4.2 Lakes Te Anau and Manapouri ........................................................................................................... 26 4.3 Deep Cove and Doubtful Sound ......................................................................................................... 27 5 Project activities which may have effects, and their scale ................................................................. 32 5.1 Lower Waiau River.............................................................................................................................. 32 5.2 Lakes Te Anau and Manapouri ........................................................................................................... 33 5.3 Deep Cove and Doubtful Sound ......................................................................................................... 33 5.4 Summary ............................................................................................................................................ 35 6 Recommendations to avoid, remedy or mitigate ................................................................................. 40 6.1.1 Deep Cove Outdoor Education Trust ......................................................................................... 40 6.1.2 Commercial and freedom kayakers ............................................................................................ 40 7 Monitoring ............................................................................................................................................... 43 8 Conclusion .............................................................................................................................................. 44 9 References .............................................................................................................................................. 46 Appendix 1: Supporting data ......................................................................................................................... 48 1.1 On-line presence ................................................................................................................................ 48 1.2 The 2001/02 and 1994/96 national angler surveys ............................................................................. 53 1.3 Relative value of Southland Rivers to New Zealand anglers .............................................................. 54 1.4 Angler use of the Waiau River between the Mararoa Weir and Monowai 1996 – 2001 ...................... 55 1.5 The Waiau River Recreation Survey 1994 .......................................................................................... 56 1.6 Report on Tourism and Recreation in the Waiau Catchment, 1992 .................................................... 57 1.7 Sustainable Water Programme of Action (MfE) .................................................................................. 58 1.7.1 Potential waterbodies of national importance for recreation value (MfE) .................................... 58 1.7.2 Waters of national importance for tourism (Ministry of Tourism) ................................................ 59 1.7.3 Sustainable Water Programme of Action: Potential water bodies of national importance. Technical Working Paper. July 2004. ..................................................................... 61 1.8 Fiordland (Te Moana o Atawhenua) Marine Area User Study 2007 ................................................... 62 1.9 Environment Southland Regional Coastal Plan for Southland, 2007 .................................................. 63 1.10 Department of Conservation ............................................................................................................... 64 Appendix 2: Stakeholder interview summaries ............................................................................................ 68 2.1 Bill Gibson and Daphne Taylor, owner/operators Fiordland Wilderness Experiences ........................ 68 2.2 Nigel Lamb, owner/operator Doubtful Sound Cruises (Fiordland Explorer Charters Ltd) .................... 70 2.3 Graham Sharp, Gore Boating Club ..................................................................................................... 70 2.4 Kevin O’Sullivan, Southland Harbour Master ...................................................................................... 70 MTAD Recreation and Tourism Assessment RG&A 2 2.5 Mark Peychers, Skipper ...................................................................................................................... 71 2.6 Robin Wilson, Skipper ......................................................................................................................... 71 2.7 Charlie Patterson, Manager DCOET................................................................................................... 71 2.8 Paul Gay and Judith Cambridge, DCOET Trust ................................................................................. 72 Appendix 3: Additional analysis of surface water current effects for recreation ...................................... 74 Appendix 4: Marine communications summary ........................................................................................... 77 Appendix 5: Risk in recreation ...................................................................................................................... 80 Appendix 6: Web review references .............................................................................................................. 81 Appendix 7: On-line presence study method ............................................................................................. 122 7.1 Method .............................................................................................................................................. 122 7.2 Limitations ......................................................................................................................................... 122 7.3 Calibration ......................................................................................................................................... 123 7.3.1 Summary .................................................................................................................................. 124 Appendix 8: Maritime Safety Review, Tom Sawyer .................................................................................... 125 Appendix 9: Manapouri Tailrace Amended Discharge: Distribution of Tailrace Flows Through the Day. Ollie McCahon memo ............................................................................................................ 126 9.1 Introduction ......................................................................................................................................