TABLE OF CONTENTS - The Professional Green Building Council

Theme B: Creating a livable, healthy and environmentally viable cities‧ The identification of key end-uses‧The identification of the economic upgrade potential.In order to assess these issues, a sample of 31 third-party water audits was selectedfrom work undertaken as part of the Sydney Water :”Every Drop Counts”campaign. The sample cannot be seen to be random as the participatingorganisations were voluntarily engaged on the program (and thus would beexpected to be more engaged with water conservation issues) while the buildingsthemselves were selected for audit on the basis of their relatively high waterconsumption. All buildings were sourced within the greater Sydney area.In each audit, a variety of methods were used to determine water consumption insubcategories, including a significant use of water submetering. The generalcharacteristics of the audit sample are listed in Table 3Table 3: Key characteristics of the water audit sample___________________________________________Item Median___________________________________________Net Lettable Area (office) 22,613 m²Water Use 1.509 kl/m²% consumption – cooling towers 27%% consumption – amenities 35%% consumption – irrigation 0%% consumption – retail 4%% consumption – baseflow/leakage 31%% consumption – other 2%___________________________________________The median water consumption end-use breakdown is also illustrated in Figures 2and 3.175