AGENDA - Sunshine Coast Council

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Strategy and Planning Committee Agenda 16 February 2011 In light of this provision all subsequent development applications will be subject to any applicable Overlay Code including the Acid Sulfate Soils Overlay Code as provided under the Caloundra City Plan 2004. MAINTENANCE PERIOD An extended on-maintenance period will be required generally, as established for the Northern Lake development. This period is required to ensure that the proposed systems complying with minimum expectations of the Water Quality Management Plan. During this period the applicant will be required to undertake extensive monitoring and any issues that arise will need to be mitigated by the applicant prior to transfer of the maintenance and operation of the lake to Council. MANAGEMENT PLANS The applicant will be require to provide a detailed management plan for both the lake and canal extension that addresses minimum water quality standards, monitoring and reporting programs, lake tenure and usage, infrastructure, maintenance, and operational maters, environmental matters including water quality, water quality monitoring and minimum standards, incident response and reporting and public education programs. Bells Creek BUFFER DISTANCE BETWEEN CONSERVATION ESTATE AND PROPOSED WORKS Negotiations with the applicant has secured additional buffer to Bells Creek in the form of parkland. The parkland forms an extension to the existing Jensen Park and increases the original buffer width along Bells Creek and the associated wetlands from 40 metres to approximately 100 metres (refer Attachment 8 – Open Space Network). The Acceptable Solution under Council’s Planning Scheme identifies a minimum buffer area of 100 metres where the waterway supports significant vegetation; otherwise the setback may be reduced to 40 metres. The buffer area at this location is currently degraded and conditions have been included that requires revegetation works to improve the riparian corridor along the banks of Bells Creek. This increased setback provides an area that could be utilised as a potential offset area as required by Fisheries Queensland for the loss of marine plants and fish habitat. REMOVAL OF MARINE PLANTS AND FISH HABITAT The proposed development will result in the removal of marine plants and fish habitat comprising of seagrass, mangrove, salt marsh species and salt couch. As such, the application was referred to Fisheries Queensland as a Concurrence Agency. The Department require offsets for the loss of marine plants and fish habitats and a Fisheries Habitat Enhancement Plan to be submitted for comment prior to submission to Council. It is considered that the assessment of the application by the Fisheries Queensland and the approval to clear marine plants below the Highest Astronomical Tide provides compliance with regard to the requirement of the relevant rezoning condition. In a recent discussion, the Fisheries Queensland indicated support for Council’s proposal to increase the vegetated buffer along Bells Creek as proposed above. As part of any subsequent development application, the applicant will be required to translocate suitable marine plants and relocate to appropriate substrates within the site. Page 58
Strategy and Planning Committee Agenda 16 February 2011 CLEARANCE OF TERRESTRIAL VEGETATION ASSOCIATED WITH DEVELOPMENT The Department of Environment and Resource Management has identified the site as supporting non remnant vegetation with regard to the Vegetation Management Act 1999, and not supporting “Regrowth Vegetation”. However, clearance of some regrowth vegetation will occur with the proposed extension of Michael Street. This area, adjacent to the existing Jensen Park does support a terrestrial vegetation community consisting mainly of Acacia, Melaleuca and Casuarina dominated regrowth with a high level of exotic weed species infestation. This vegetation community provides both temporary and permanent habitat for a range of birds, mammals and reptiles. Standard conditions regarding pre clearance and fauna management will apply prior to clearance of vegetation associated with the development of the site. As part of the subsequent development applications, the applicant will be required to undertake weed control, revegetation/rehabilitation of all disturbed areas and undertake extensive amenity landscaping. In addition to common amphibian species, the site provides habitat for the Wallum Froglet (Crinia tinnula) which is listed as Vulnerable under the Nature Conservation Act. However, it is considered that due to the extensive nature of adjacent suitable Crinia habitat within and in close proximity to the site that the clearance of vegetation will not represent habitat critical to the survival of the population. In an effort to minimise the impact on the species, the applicant will be required to install frog guidance/exclusion fences, undertake trapping and translocate frog habitat (containing individuals) and relocate to appropriate areas within the site. Storm Surge and Flooding MINIMUM FILL LEVELS Filling of land below the current and 2100 peak 100 year Average Return Interval storm tide level is proposed. Filling of land subject to storm tide inundation is treated differently to filling of land associated with freshwater flooding. When dealing with freshwater flooding any filling of land in the floodplain results in displacement of floodwaters which has associated impacts. With storm tide flooding the inundation is caused by raised sea levels due to the low pressure and wind action over the ocean. Filling of land on the coast does not cause an increase in storm tide levels elsewhere. Therefore, it is recommended that filling of land subject to storm tide flooding but not regional freshwater flooding be accepted. To achieve 0.5 metre freeboard to 100 year Average Return Interval storm tide inundation at 2100 floor levels within the development should be a minimum of 3.25 metres. For detached house lots building requirements dictate that the slab will generally be 0.3 metre above the ground surface resulting in the minimum floor level of 3.25 metres Australian Height Datum being achieved with no filling by the lot owner required if the developer fills the lot to 2.95 metres Australian Height Datum. For medium density, commercial and industrial development the buildings frequently extend below the ground surface for basement parking etc and the finished fill level is not as critical as it is for detached house lots. For the medium density, commercial and industrial uses subsequent Material Change of Use applications will be required at which time compliance with the minimum floor level can be checked and enforced. Hence it is recommended that a minimum fill level of 2.95 metres Australian Height Datum be required for all proposed lots. This applicant proposes to fill the lots to 2.90 metres Australian Height Datum which falls slightly short of the required fill level. Page 59
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AGENDA - Sunshine Coast Council

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