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Royal Botanic Gardens Victoria Annual Report 2018-19

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Melbourne <strong>Gardens</strong> irrigation water sources<br />

160,000<br />

38,679<br />

46,500<br />

120,000<br />

31,295<br />

14,992<br />

48,312<br />

115,817<br />

106,861<br />

Kilolitres (kL)<br />

80,000<br />

92,023<br />

89,460<br />

68,656<br />

40,000<br />

Stormwater-sourced water (kL)<br />

0<br />

2014-15 2015-16 2016-17 2017-18<br />

<strong>2018</strong>-<strong>19</strong><br />

Potable-sourced water (kL)<br />

Figure 1: Melbourne <strong>Gardens</strong> irrigation water sources<br />

Lower than average rainfall over the last<br />

few years has seen increased need for<br />

irrigation. This highlights the increasing<br />

need for the sustainable irrigation water<br />

project which aims to bring 100% nonpotable<br />

water to both <strong>Gardens</strong>.<br />

Table 12: <strong>Annual</strong> waste management<br />

Waste Processing (to recycling, landfill<br />

and mulching)<br />

Cranbourne <strong>Gardens</strong><br />

Melbourne <strong>Gardens</strong><br />

Co-mingled waste (recycling) 7.86 tonnes (estimate) 15.9 tonnes<br />

Cardboard and paper (recycling) 2.77 tonnes 3.44 tonnes<br />

Public waste (to landfill) 2.53 tonnes 45.9 tonnes<br />

General office and garden waste (to landfill)<br />

4.55 tonnes general office<br />

6.42 nursery soil and green waste<br />

45.3 tonnes<br />

Green waste (converted to mulch) 250 m3* 1,600 m3<br />

*Please note that this amount will be mulched once enough green waste has been stockpiled.<br />

Table 13: <strong>Annual</strong> energy use<br />

Usage Cranbourne <strong>Gardens</strong> Melbourne <strong>Gardens</strong><br />

Electricity consumption (kilowatt hours –<br />

kWh)<br />

429,765 kWh 792,598 kWh<br />

Gas consumption (mega joules)<br />

9,808 litres of Liquid Petroleum Gas<br />

(LPG). Cranbourne <strong>Gardens</strong> does not<br />

have natural gas.<br />

5,856,797 MJ<br />

ROYAL BOTANIC GARDENS BOARD VICTORIA — ANNUAL REPORT <strong>2018</strong>–<strong>19</strong> 63

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