Thoughtful research and preparation have gone into the One Water 2100 Plan, which will help shape Tucson’s water future.
Tucson Water updates its water resource plan about every ten years. One Water 2100 is the current long range planning effort. The first phase included an analysis of existing conditions. That analysis produced a series of technical memorandums, which are viewable by following the links provided below.
One Water 2100 Scenario Planning
This memorandum serves as the guiding document for the One Water 2100 planning process.
One Water 2100 Climate Projections
This memorandum creates an understanding of a chronology of historic climate trends and projected climate change impacts on a local and regional scale, as well as a consideration for seasonal components that can be probabilistically quantified.
One Water 2100 Conservation Projections
This memorandum analyzes the potential of the conservation program’s water savings over the next ten years.
One Water 2100 Land Use Planning
This memorandum summarizes where projected growth and development may occur by confirming adopted planning efforts and identifying development trends and new planning considerations in these areas.
One Water 2100 Population Projections
This memorandum serves to document estimated population projections in Tucson Water’s service area through the planning horizon of the One Water 2100 Plan.
One Water 2100 Water Use Projections
This memorandum documents Tucson Water’s water resources portfolio along with accompanying analyses of the utility’s existing water demands and water production summaries. It also highlights water system supply versus demand balance through the One Water ͮͭ planning horizon.
One Water 2100 Benefits and Costs of the Reclaimed System
The intent of this analysis is to provide an objective empirical basis for evaluating the benefits and costs of the Reclaimed Water System.
One Water 2100 Water Quality Management
This memorandum presents water quality data for Tucson Water’s current resources and relates that data to current and projected regulations for different water types and uses.
One Water 2100 Greenhouse Gas Emissions Inventory
This memorandum provides an inventory of Tucson Water (TW) greenhouse gas emissions (GHG) for 2018, an overview of previous GHG inventories, and a trend analysis comparing the GHG inventories for TW from prior years to 2018.
