Eurobodalla Integrated Water Cycle Management Strategy

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Eurobodalla Integrated Water Cycle Management Strategy
Table 8-15 TBL Assessment for the Regional Water Supply Options
ENVIRONMENTAL
Ensures the efficient use of the
fresh water resource
Minimises water extractions and
protects low flows
Minimises greenhouse gas
emissions
Minimises pollutants being
discharged to the aquatic
environment
Minimises urban stormwater
volumes
Trad. Integrated Options
0 1 2 3 4 5 6 7
0 1 2 2 2 3 3 3
0 1 2 2 2 3 3 3
1 3 3 2 1 1 1 2
0 0 0 0 0 2 2 2
0 0 2 2 2 2 2 2
Ensure sustainable practices 0 1 2 2 2 3 3 3
Environmental Sum 2 6 11 10 9 14 14 15
Environmental Rank 8 7 4 5 6 2 2 1
SOCIAL
Improves security of town water
supply
Improves the quality of drinking
water
Improves urban water service
levels
Increases public awareness of
urban water issues
Minimises non-compliance to
legislation
3 3 3 3 3 3 3 3
3 3 3 3 3 3 3 3
1 1 2 2 3 3 3 3
0 2 3 3 3 3 3 3
0 1 1 2 3 3 3 3
Protects public health 0 0 0 2 3 3 3 3
Social Sum 7 10 12 15 18 18 18 18
Social Rank 8 7 6 5 1 1 1 1
FINANCIAL
NPV $m over 30 years (with
Rainwater Tanks)
149.1 64.2 73.2 74.7 76.8 86.3 86.8 80.7
Financial Rank 8 1 2 3 4 6 7 5
TBL Sum 24 15 12 13 11 9 10 7
TBL Rank 8 7 5 6 4 2 3 1
From the triple bottom line assessment, integrated option 7 provides the best social,
environmental and financial outcomes. This option eliminates the need for a dam within the
next 30 years through the integration of options including rainwater tanks, comprehensive
demand management and environmental flow substitution.