Water safety planning

1
Water safety planning
Assessment and management strategies to reduce
risks of contamination and insufficient supply of
drinking water
2
Water use efficiency

• Part of WSSD target for 2005
• Water supply has a cost how to make sure that
  you make sure that you get the most out of what
  you pay
• Strategic planning to maximize the economic and
  social welfare derived from water
• Supply vs. demand is it more cost-effective to
  invest in increased supply or to encourage
  decreased demand?

3
Water use efficiency

• Technical efficiency
• User efficiency (behavioral change though
  incentives or sanctions - demand management)
• Water recycling and reuse
• Supply efficiency
• Allocative efficiency
• Strategic allocation of water to most
  cost-effective use
• Balancing social, environmental and economic
  demand
• Cost-benefit analysis

4
Water use efficiency planning

• Reducing vulnerability and mitigating conflict by
  planning to meet current and changing demands in
  a cost-effective manner
• Example of plan contents
• Description of service area and demographics
  /water supply sources and vulnerability
• Water transfers/exchanges
• Existing and projected water use
• Water efficiency goals (goals and opportunities
  for increasing water-use efficiency)
• Evaluation of alternative demand management
  measures - based on
• Existing measures and potential to step up
• Economic, environmental, social, health, customer
  impact and technological factors
• Cost-benefit analysis
• Funding available for implementation (raised
  tariffs tolerated?)
• The water supplier's legal authority to implement
  the measures
• Detailed water shortage contingency analysis and
  drought/emergency action plan (including
  implementing legislation)
• Recommended long-term efficiency plan
• Implementation plan