Technical Report 7: Landscape Assessment
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Technical Report 7: Landscape Assessment Document History and Status Revision Date Reviewed by Status 21.02.2019 R Pryor Draft 27.02.019 For Issue File Number/Name 18740 LVA01 Author J Hogan Client Euroclass Services Ltd 1.0 INTRODUCTION 1.1 LA4 Landscape Architects have been engaged by Euroclass Services Ltd to undertake a landscape assessment of Outstanding Natural Feature 93 (ONF 93) to inform a Private Plan Change request to the Auckland Unitary Plan (Operative in part) (AUPOP). As part of the plan change, Euroclass Services Ltd seeks to: § rezone the existing quarry zoning associated with the Stonehill Business Park under the AUPOP to Business - Heavy Industry § remove the ONF classification from the southern part of the plan change area that generally corresponds to the site at 79 McLaughlins Road (refer to Figure 1), as this is considered to be erroneous. Figure 1. The Site and Plan Change Area In Relation to ONF93 Source: Babbage 1.2 The scope of this assessment includes: § a description of the site and setting § a review of the landscape assessment of ONF 93 undertaken as part of Landscape Evaluations of Geological Sites and Landforms of Auckland and the Identification of Outstanding Natural Features, which was prepared in 2012 and used to inform AUPOP § an assessment of the landscape values of the portion of the PC area currently located within ONF 93 27.02.2019 2 LA4 LANDSCAPE ARCHITECTS § conclusions as to the applicability of the ONF classifications locally and in particular to the site at 79 McLaughlins Road. 1.3 I am very familiar with the site and surrounds having previously prepared a landscape and visual assessment as part of the consenting stage for the nearby Auckland South Corrections Facility, as well as being the lead landscape architect involved in the landscape design and supervision of landscape works associated with the prison. 1.4 As part of re-familiarisation of the area, further site investigations were carried out during December 2018. Figure 2. Site Location Source: Geomaps 27.02.2019 3 LA4 LANDSCAPE ARCHITECTS 2.0 LANDSCAPE CONTEXT 2.1 In the AUPOP ONF 93 is identified as Matukutureia (volcanic cone) and Matukuturua lava fields and tuff ring. In the wider context, these features are located between the Auckland International Airport to the west and the established urban areas of Papatoetoe, Wiri and Manurewa to the east. The local area is generally characterised by low lying, varied, and gently undulating terrain located on the edge of the Manukau Harbour, and is defined by the lower reaches of the Waokauri Creek to the north and the Puhinui Creek to the south. Historically, and until relatively recent times, quarrying operations were also a significant feature of the area. Figure 3. Oblique Aerial Photograph looking north (Plan change area highlighted in red) Source: Google Maps 2.2 Immediately to the west beyond the Puhinui Creek is Puhinui Reserve. Together with the lava fields (also commonly referred to as stonefields) they provide sizeable areas of public open space and a distinctive landscape scattered with archaeological remnants and natural landscape features. The most notable of which is the maunga, Matukutureia (formerly McLaughlin’s Mountain), which is a prominent local landmark. The maunga is of particular significance to Ngati Te Ata (who in conjunction with Pukaki ki Te Akitai hold Mana Whenua status), being the birthplace of the tribe’s eponymous ancestor Te Ata Rehia. The Stonefields are one of the last significant remaining examples of pre- European Maori settlement and gardening on volcanic soils in the region. 2.3 From the Maunga the lava field extends to the south-west and south-east to the edge of the Puhinui Creek. The lava field is characterised by a rolling hummocky landform 27.02.2019 4 LA4 LANDSCAPE ARCHITECTS predominantly covered in grassland (refer to Figure 3). Distinctive features include the widespread remnant gardens, with mounds, boundary walls, and former settlement sites. In this regard, the landscape has strong cultural associations. Human influence has been a significant component shaping the character of the local landscape in both pre- European times and post colonisation. Photograph 1. Matukutureia 2.4 The most significant influence has been the historic quarrying which has resulted in considerable landform modification, notably the removal of much of Matukutureia and almost total destruction another nearby cone, Matukuturua. 2.5 Over the past decade there has been a considerable change in landuse in the surrounding area, with the establishment of an industrial subdivision (Stonehill Business Park - proposed plan change area) immediately to the west of the lava field on land which formed part of the former quarry, and the establishment of the Auckland South Corrections Facility immediately to the east. Photograph 2. Matukutureia with industrial development in the foreground 27.02.2019 5 LA4 LANDSCAPE ARCHITECTS 2.6 This development extends the industrial influence of nearby Wiri and provides a significant contrast to the rural landscape further to the west. To the east between Matukuturua and Roscommon Road. the land is intensively developed with large footprint warehouses, industrial units and factories of up to 14m in height dominating the landscape. To the north is the Wiri Oil Services Ltd (WOSL). This bulk fuel storage facility is also a significant visual feature of the area with its large storage tanks of up to and in excess of 20m in height. This industrial and commercial landuse separates Matukuturua from the established residential areas of Papatoetoe to the north, Manurewa to the south-east, and Clendon Park to the south across Puhinui Creek. 2.7 The proposed plan change area lies immediately to the west of the Matukuturua lava field. Large scale industrial buildings and warehouses currently occupy the northern, and much of the central part of the business park. The southern portion, a large part of which comprises 79 McLaughlins Road, currently remains undeveloped. In this area, the land beyond the perimeter road (Harbour Ridge Drive) is characterised by open grassland extending down to the edge of the Puhinui Creek. This land contrasts with the more hummocky terrain of the lower lava fields to the east. A feature of this area is a wetland located between the road and Puhinui Creek. (refer to Figure 3 and Photograph 4) Photograph 3. View to the south-west from 79 McLaughlin’s Road 2.8 This area is largely devoid of any significant vegetation with that present consisting mostly of rank pasture and scrubland dominated by exotic weed species such as woolly nightshade, gorse and privet. These are intermixed with a scattering of native coastal shrub and tree species, particularly around the wetland area and the margin of the creek. 27.02.2019 6 LA4 LANDSCAPE ARCHITECTS Photograph 4. View from southern part of plan change area to the north east looking over the wetland to volcanic cone and lava field 3.0 BACKGROUND Outstanding Natural Feature Overlay 3.1 Under section 6(b) of the Resource Management Act 1991 the protection of ONFs from inappropriate subdivision, use and development is identified as a matter of national importance. 3.2 During 2012 a study was undertaken by Brown NZ Ltd to inform the AUPOP1. The key objective of this report was to identify and map sites and landforms identified as geologically significant by Auckland Council that could be regarded as Outstanding Natural Features (within then the context of s.6(b) of RMA). 3.3 Guided by this assessment ONF’s in the Auckland region are now identified in Schedule 6 (Outstanding Natural Feature Overlay Schedule) of the AUPOP and are depicted on the accompanying maps. Under Schedule 6 ONF 93 is named Matukutureia and Matukuturua Lava Field and Tuff Ring and is described as a large volcanic landform. The relevant maps accompanying the AUPOP show ONF 93 extending into the proposed plan change area (refer to Figure 1). 3.4 Within Schedule 6 ONF 93 is described: The Matukuturua lava field is one of the best-preserved lava fields remaining in the Auckland volcanic field and is an important representative example of the volcanic lava terrain that underlies much of the city. The lava field erupted from McLaughlin’s Mountain (Matukutūreia) volcano. Most of the original scoria cone and a section of the lava field in the north have been quarried away. Associated with the lava field is a section of tuff ring remaining from the early phases of the eruption. A small wetland has formed behind the ridge of tuff. 1 Brown NZ Ltd, May 2012. Landscape Evaluation of Geological Significant Sites and Landforms of Auckland and the Identification of Outstanding Natural Features 27.02.2019 7 LA4 LANDSCAPE ARCHITECTS 3.5 Of 270 potential landforms and sites identified as geologically significant by Auckland Council, the Brown NZ Ltd report identified 70 as being ONFs. The methodology adopted as part of the evaluation initially did a coarse screening to determine a broad classification for the 270 significant geological areas identified into 4 categories 1. Sites of Geological Value 2. Notable Natural features 3. Significant natural feature 4. Likely Outstanding features 3.6 The next step focused on categories 3 and 4 with targeted field survey, evaluation and mapping to determine the final list of ONF’s. Potential sites were then subject to more detailed investigations including site mapping and use of field investigations worksheets that considered the following evaluation factors to determine the recommended site/feature classification. § Intrinsic Geological Values § Perceptual Values § Associative Values 3.7 The applicable worksheet (Site No. 138) to the Matukuturua Lava Field evaluation is attached as Appendix 1. The worksheet scored the key values of the evaluation factors listed to determine an overall landscape evaluation score for the site at the upper end of the scale, which correlates with an ‘Outstanding’ rating in the report.