IPWEA International Public Works Conference
Sunday 11- Thursday 15September 2013
Darwin Convention & Exhibition Centre, Darwin, NT
Abstract Submission Form
Abstract title:Implementing water master plans and WSUD
Authors name(s) and organisations:
Peter Shields, Technical Services Manager, andPaul Tatham, Senior Engineer, Project Design, City Of Sydney
Author who will present the paper
Name: Co-presented by Peter Shields and Paul Tatham
Organisation: City Of Sydney
Address: 456 Kent Street, Sydney
Phone: 02 9246 7821
Fax: 02 9265 9660
Email:
10-20 key word description of the abstract:
Abstract(100-300 words):
Every year nearly 3000 tonnes of stormwater pollutants are discharged to waterways from the City of Sydney local government area. The City also relies heavily upon a centralised water supply for all of its water needs. The City has developed a Sustainable Sydney 2030 Strategy that considers both of these circumstances. This strategy includes a target to reduce sediments and suspended solids reaching our waterways by 50%. It also requires a 10% reduction in mains water reliance within LGA.
To deliver the targets set, the City has developed a decentralised water master plan. This plan provides direction for the City to establish alternate water sources, through numerous measures including sewer mining, stormwater harvesting and thermal desalination. The master plan also provides a strategy to improve the quality of water being discharged into Sydney’s waterways.
The City’s approach to achieving these targets also requires the introduction of de-centralised water sensitive urban design (WSUD) initiatives throughout the catchment. This includes the construction of raingardens, swales, infiltration trenches, use of permeable pavers on footpaths and the installation of gross pollutant and sediment trapping devices. From recent research raingardens are the most efficient retrofit device for removing pollutants. They are well reported for removing 90% of gross pollutants as well also significantly reducing heavy metals, silts, sediments and dissolved pollutants such as phosphorous and nitrogen.
Each time the City looks to implement infrastructure improvements, consideration is being made for the incorporation of WSUD initiatives. Since 2000 the City has been installing and refining the design of WSUD facilities. The design development has particularly focussed on the introduction of using recycled materials and minimising maintenance requirements.
The City has been proactively monitoring the water quality of raingardens and testing the life of bio filter materials. This paper with detail the findings of these investigations and provide information on how to reduce the maintenance burden on Councils for WSUD facilities.
Biography (100 words):
Peter has over 23 years industry experience primarily within the local government sector. As Technical Services Manager for the City of Sydney, Peterhas key responsibilities relating to theimplementation and asset management of key sustainable projects.
Paul has over 15years experiencein the local government sector both locally and overseas. Since joining the City of Sydney Paul has overseen the design and implementation of the majority of the City’s WSUD projects, the associated performance monitoring and design development.
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