Update to 2010 SWSI Conservation Section SOW

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The Consultant will review the savings estimates from CWCB Conservation Plans, SWSI Phase 1 and SWSI Phase 2, and the SWSI Conservation Level Analysis. The current targeted level of water savings assuming natural replacement and implementation of all submitted water conservation plans will be considered. 3.2- Assess Current Conservation level and 2050 Potential The Consultant will assess the current conservation level and 2050 conservation potential for M &I using Best Practices Guide for Water Conservation in Colorado as the foundation.. 3.21- Establish Range of Savings by Conservation Best Management Practice 3.22- Review 2050 Basin Characteristics y Conservation savings are not necessarily achieved equally in each basin because of differing conditions. The Consultant will revisit the Basin Characteristics and the assumptions associated with the development of them. 3.23- Determine Penetration Rates by Conservation Measure Needed to Achieve 20, 30, and 40 Percent Conservation Savings The Consultant will describe the present state of data that supports or does not support formulating accurate penetration rates of conservation measures. 3.3- Prepare Scenarios for Achieving Conservation Savings at 20, 30, and 40 Percent from 2008 M &I Water Use Rates The Consultant will analyze and discuss the different methods from the previous section that can result in various demand reductions or water conservation savings. This section will also address the issue of demand hardening and will review discussion from SWSI 2. The Consultant will present analysis the potential impacts of demand hardening that should be considered as part of a full evaluation of the 20, 30, and 40 percent options. 3.4- Prepare M &1 Water Conservation Strategy Conclusions The Consultant will discuss the current state of water conservation in Colorado, the update of SWSI II conservation matrix, how the various water conservation strategies work towards closing the 2050 gap, what data is lacking or missing to complete the water conservation strategies, and what future research will be occurring to complete the water conservation strategies. 3 Research being carried out by Great Western Institute (due early March 2010) to revisit the assumptions for the water conservation levels from SWSI I and to reanalyze the savings associated with each level of water conservation activities. Aquacraft, Inc. 303 - 786 -9691 Water Engineering and Management 303- 786 -8337 (fax) Boulder, CO www.aquacraft.com