Wyoming Framework Water Plan - Living Rivers Home Page

6.0 PROJECTIONS
Historical Growth Projections
A third set of population projections was developed from an analysis of historical population
growth. The state experienced rapid population growth during the 30-year period from 1970 through
2000. A reasonable set of high growth population projections can be developed by assuming that the
absolute population growth that occurred during that period will occur during the next 30 years.
Economic Base Methodology
The economic and demographic projection approach employs an established technique in
regional economics known as “economic base analysis”. The economic base approach is a “bottom-up”
method that focuses directly on specific activities that are likely to drive economic and demographic
changes in the future, while at the same time being less data-intensive than econometric modeling
approaches.
A modified version of the economic base forecasting approach was used in some of the river
basin plans. A more detailed discussion of the population projection technique used in each river basin
plan is included in the final river basin plans and the associated technical memorandum.
6.3.3 Municipal and Domestic Use Projections
Current per capita use rates for municipal water consumption are presented in Chapter 5. These
rates were applied to population projections for incorporated cities and towns in the planning area to
estimate future municipal use. For purposes of projecting future use, small, unincorporated areas were
included in the domestic demand projections. A more detailed discussion, of both municipal and
domestic use, is contained in the seven river basin plans.
Table 6-8 shows the projected municipal and domestic water use for the High, Mid, and Low
Scenarios.
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