Eurobodalla Integrated Water Cycle Management Strategy
Eurobodalla Integrated Water Cycle Management Strategy
Eurobodalla Integrated Water Cycle Management Strategy
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<strong>Eurobodalla</strong> <strong>Integrated</strong> <strong>Water</strong> <strong>Cycle</strong> <strong>Management</strong> <strong>Strategy</strong><br />
Table 8-3 Percentage of Total Regional Demand That Can Be Supplied Through<br />
Rainwater Tanks (With No Other Demand Measures)<br />
Rainwater Use<br />
5 kL<br />
Tank<br />
10 kL<br />
Tank<br />
15 kL<br />
Tank<br />
20 kL<br />
Tank<br />
Garden <strong>Water</strong>ing 3% 3% 4% 4%<br />
New houses only Garden and Toilet Use 4% 5% 5% 5%<br />
(7 430 dwellings) Garden, Toilet and<br />
Washing Machines Use<br />
5% 6% 7% 7%<br />
New houses and<br />
20% of existing<br />
houses<br />
(10 120 dwellings)<br />
New houses and<br />
40% of existing<br />
houses<br />
(12 810 dwellings)<br />
Rebates<br />
Garden <strong>Water</strong>ing 4% 5% 5% 5%<br />
Garden and Toilet Use 5% 6% 7% 7%<br />
Garden, Toilet and<br />
Washing Machines Use<br />
6% 8% 9% 10%<br />
Garden <strong>Water</strong>ing 5% 6% 6% 7%<br />
Garden and Toilet Use 6% 8% 9% 9%<br />
Garden, Toilet and<br />
Washing Machines Use<br />
8% 10% 12% 13%<br />
Council can consider passing on their capital and operational cost saving to landowners<br />
who install rainwater tanks as a rebate (Table 8-4). These calculations, taking into account<br />
the saving to Council in capital and operational costs, can be found in Appendix Z.<br />
Table 8-4 Proposed Rebates For Rainwater Tank Installation<br />
5 kL 10 kL 20 kL+<br />
Garden use only $470 $640 $735<br />
Garden use plus toilet and/or washing machines $510 $680 $780<br />
Rainwater Tanks In All New Developments Opportunity<br />
In this opportunity, 10 kL rainwater tanks could be mandated for all new developments, for<br />
garden watering, toilet and washing machine use. This has the potential to reduced the<br />
demands of the system by 425 ML/a or 6% of the regional water demands. Rebates could<br />
be offered either on installation or through developer contributions.<br />
Rainwater Tanks In All New Developments And 20% Of Existing Developments<br />
Opportunity<br />
In this opportunity, 10 kL rainwater tanks could be mandated for all new developments, for<br />
garden watering, toilet and washing machines use. A rebate could also be offered for the<br />
installation of rainwater tanks for garden watering into existing developments. An uptake of<br />
20% may be achieved through the requirements to retrofit extensions to existing houses<br />
with rainwater tanks. For existing houses rebates could be offered to offset the owner’s<br />
cost. The opportunity has the potential to reduce the system demands by 510 ML/a or 7% of<br />
total regional demands.<br />
79
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