Table 3. Summary of alternate water conservation scenarios for the metro- 

 politan Washington area (from Water Forum Notes 1978). 



.Null -Projection of current rates of water use with no operation 



changes imposed. 



.Baseline -Projection of current rates of water use with incorpora- 

 tion of current and anticipated metropolitan Washington 

 Area plumbing regulations. 



.Scenario 1 -Baseline plus: 



Additional low water use fixtures to new residential con- 

 struction, retrofitting water-saving devices to existing 

 residential , 



.Scenario 2 -Scenario 1 plus: 



A reduction in outdoor residential water use achieved 

 through a water conservation educational campaign directed 

 at changing individual water use habits, 



.Scenario 3 -Scenario 2 plus: 



A reduction in indoor and outdoor nonresidential water use 

 achieved through a water conservation educational cam- 

 paign directed at employees' personal use and manage- 

 ment's water use habits, 



.Scenario 4 -Scenario 3 plus: 



A reduction in the unaccounted for water use by mini- 

 mizing the amount of water lost from leaks through 

 system improvements, and 



.Scenario 5 -Scenario 4 plus: 



The most efficient available low-water use fixtures to 

 indoor new residential and nonresidential; retrofitting 

 water-saving devices to existing residential; a behavior 

 modification to indoor and outdoor, new and existing 

 residential and nonresidential water use; and a reduction 

 unaccounted for water use by minimizing the amount of 

 water lost from leaks through system improvements. 



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