AWWA JAW62634

With the goal of understanding future water demand and conservation potential for the San Francisco Public Utilities Commission's (SFPUC's) wholesale customer service area, an end-use water demand model was used to conduct a series of comprehensive evaluations. Using a water demand forecasting model that focuses on end uses such as toilets and showerheads allows analysts to isolate the effect of plumbing and appliance codes on demand projections and potential water savings. In this study, the model was applied to each wholesale customer service area individually to first project total water demand in 2030 and then to evaluate the cost-effectiveness of implementing a range of conservation measures. The study found that current plumbing and appliance codes would reduce 2030 total water demand (estimated at 324 mgd) in the SFPUC wholesale customer service area by about 7.8%. The modeling further showed that additional water conservation measures could reduce total water demands by an extra 2-6%. Includes 3 references, tables, figures.