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 />
Systematic monitoring of local waterways and urban stormwater quality and<br />
quantity<br />
Regular mail-outs of ways to maintain the on-site water and wastewater systems<br />
including information on water conservation<br />
The above short term measures are complimentary to the proposed medium-term<br />
measures and would help Council and the community to manage their water cycle<br />
more sustainably.<br />
Medium to Long term <strong>Water</strong> <strong>Cycle</strong> <strong>Management</strong> Opportunities<br />
Medium-term opportunities are measures related to improving the long term sustainability<br />
of the water cycle. In addition, these opportunities will also reduce public health and<br />
environmental impacts and enhance the service standards for the water services. Table<br />
9-15 presents these opportunities along with their capital and present value at an annual<br />
discount rate of 7%.<br />
Table 9-15 <strong>Integrated</strong> <strong>Water</strong> <strong>Cycle</strong> <strong>Management</strong> Opportunities for Rosedale and<br />
Guerilla Bay<br />
Cost Estimate<br />
Capital ($m) NPV @ 7% ($m)<br />
Improved management of existing on-site facilities $0.41 $2.24<br />
Enhanced management of existing on-site<br />
facilities<br />
Centralised<br />
management of<br />
effluent from on-site<br />
facilities<br />
Transfer to Tomakin<br />
system<br />
Transfer to Tomakin<br />
system<br />
Transfer to Tomakin<br />
system with greywater<br />
reuse of suitable systems<br />
Provision of full<br />
reticulated<br />
sewerage system Transfer to Tomakin<br />
system with greywater<br />
reuse of suitable systems<br />
and roofwater harvesting<br />
utilising disinfected tanks<br />
$1.31 $1.74<br />
$2.85 $2.43<br />
$3.06 $2.73<br />
$3.06 $2.73<br />
$3.06 $2.73<br />
Note 1: NPV’s for on-site systems are based on a rolling program commencing in 2003. NPV’s for sewering<br />
Rosedale and Guerilla Bay are based on work commencing in 2006<br />
Note 2: The savings achieved by Council treating less effluent have not been taken take into account in the study<br />
and the costs associated with greywater reuse are community costs<br />
Improved <strong>Management</strong> of Existing On-site Wastewater Facilities<br />
The seepage from existing on-site wastewater management systems could be reduced by<br />
regularly emptying the contents of the septic tanks and putting monitoring systems in place<br />
to prevent septic tank overflows and to assess the integrity of the tanks.<br />
A single contract could be arranged by the Council or by the community such that the septic<br />
tanks are pumped at set time intervals. This would cover both wastewater and sullage<br />
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