AWWA ACE65618

This powerpoint presentation presents the Phoenix (Arizona) Water Resources Acquisition Plan. Its strategic goal is to demonstrate the availability of sufficient sustainable water supplies to meet the City's 2055 demands, considering a variety of growth and drought scenarios. The key objective of the plan is optimal water supply and infrastructure redundancy. Drivers include: growth - more aggressive projections, changing central city; drought - susceptibility to prolonged drought; acquisition challenges - higher cost and greater competition for new sources; assured water supply - must re-apply to ADWR before 2008; and, regional and institutional developments - Colorado River shortage negotiations, environmental/endangered species issues, and water availability in non-metropolitan areas. Information is provided on supply/demand uncertainties, such as water consumption by acre feet from 1990-2006, wet/dry cycles of the Colorado and Salt River watersheds, Gallons Per Capita/Day (GPCD) Trends, Impact of Conservation on Water Use 1980-2005, Spatial Distribution of Demand, and 50 Year Planning Uncertainties - 1951 Phoenix Population Projections and Actual Growth. Drought scenarios are presented by Length and Severity of Surface Water Shortages, and Growth and Water Use Patterns. Strategic concepts are presented and include: target demands between "base" and "high density" levels under moderate drought conditions; begin deployment of "future" supplies by 2015 to meet growth demands under moderate drought conditions; continue phased deployment of "future" and "supplemental" supplies beyond 2015 to meet growth demands under normal, moderate and severe drought conditions; supply selection will consider cost, reliability, accessibility, maintenance needs, timing, quality and treatment, and public acceptance; funding for deployment of future and supplemental supplies should be derived from growth-related revenues; and, promote enhanced conservation to minimize drought impacts to existing and future customers. Potential WRA Projects are listed.