Infrastructure Strategy 3. Most likely scenario The key ‘drivers’ of investment are: The most likely scenario is that the Blenheim Stormwater Strategy will be implemented Growth — investment to provide additional capacity to cope with increased through the progressive implementation of Stormwater Management Action Plans for • the 11 management areas. The solutions implemented will be multi-dimensional to the demand for the service due to population growth or increased usage benefit of the urban drainage and receiving waters. The strategic approach will be • Levels of service — investment to improve the service customers receive extended to the other urban settlements (Picton, Havelock, Renwick, Seddon, Spring Creek and other smaller settlements.) • Renewals — investment to replace worn out or inefficient assets. The action points that were devised from the Blenheim Stormwater Strategy will be reviewed in the light of the NPSFM. Also the outcome of the structured decision making process for Murphy’s Creek and the evidence of earthquake damage to the Project Title infrastructure will strongly influence the future work programme. However the aims and objectives of the strategy, and the holistic approach to catchment management, remains a strong framework for future stormwater management. 3.1 and 3.2 Stormwater quantity and quality Springlands 2021-24 $4M 35 65 0 SMAP It is likely there will be an increasing focus on urban stormwater quality and the impact Murphys Creek on the natural receiving waters. As a result there will be a regular stormwater Catchment monitoring programme and a programme of remedial works. It is likely that the remedial works will include: Town Branch & To 2028 $5.65M 10 30 60 Wither SMAP • increased management of potential contamination sources such as factories, Redwood St businesses and commercial sites; Catchment • retrofitting treatment devices into stormwater pipelines; Eight further Not • stormwater treatment to be built into all new development and SMAPs in the evaluated Blenheim • increased efforts to raise public awareness and education. Strategy 3.3 Ageing infrastructure Grovetown 2018/19 Developer 100 Approved funded Additional resources will be allocated for pipe condition surveys through CCTV and Services Plan pipe sampling. Data will be gathered to develop a targeted renewals programme. It is likely that a small but growing pipe renewals programme will be instigated over the Extend the Not next three years, with accelerated growth in the following years, as more information is stormwater evaluated gained on pipe condition and life expectancy. Plans will be developed to manage the strategy to all predicted peak in renewals from 2048 Marlborough urban areas 4. Table of major projects for this activity A brief summary of upcoming projects for this asset is shown below, and includes an indication of the main reasons for the projects. Many of these have multiple drivers that span the challenges identified in the earlier sections of this chapter. 2018-2028 Long Term Plan Page 205 etamixorppAetaD deriuqeR detamitsE tsoC m1$ tcejorP revirD)gnithgiew %( htworGtcejorPrevirD)gnithgiew%(fo leveL ecivreStcejorPrevirD)gnithgiew %( laweneR