Indicate whether and how water savings from conservation will allow systems to eliminate, downsize, or postpone supply-side projects or water purchases. In this section, planners can revise the demand and supply-capacity forecasts made in earlier sections of the plan based on anticipated conservation savings. Pay particular attention to the effects of conservation on specific supply-facility projects. Anticipated savings from conservation should be based on realistic estimates of savings associated with the planned measures. Similarly, supply projects that involve multiple facilities should be considered in terms of the total water supply capacity that is made available through those combined facilities.
Timing is another issue.
Some conservation plans use a graph to display anticipated annual supply capacity and demand without and with the implementation of conservation measures. Revisions should reflect changes based on the introduction of new conservation measures. The effects of measures already being implemented should be included in the original demand forecast. The plan should include an explanation of the approach used in revising the demand forecasts. Worksheet 4-13 is provided for this purpose.