2013/01/30 Council Agenda Packet

3 HDR Services 1. Document the original SRRWA demand forecasts prepared in 1996 and 2000. 2. Document historical demands for the period 1996-2012 for SWRWA members,as well as for the City of Bothell (Bothell). 3. Assemble the portion of the revised demand forecast from Task 4 for the period 2013-2051 that represents the SWWRA members, as well as Bothell. 4. Prepare a comparative analysis for 1996-2021 of the original SRRWA demand forecasts and actual historical demands and revised forecasts for SRRWA members and Bothell, including the following: • Realized and projected change/reduction in per unit demand (e.g., per capita demand, average use per ERU). • Realized and projected change/reduction in total water demands • Realized and projected change/reduction in water demand (system wide or per ERU) attributable to conservation/water use efficiency, to the degree possible. • Realized change/reduction in industrial water use for Everett (i.e., Kimberly Clark) • Realized change in residential/commercial water connections (1996-2012). • Realized change in total water consumption annually(1996-2012) • General observations regarding the availability of new regional water supply sources, as documented by the Water Supply Forum's 2012 Regional Water Supply Update. • General observations/data regarding SPU water supply status, per capita use trends, and projected supply/demandstatus, as documented in SPU's 2013 Water System Plan 5. Prepare a comparative analysis for 2021-2051 of the original SRRWA demand forecasts and revised forecasts for SRRWA members and Bothell including the following: • Projected change/reduction in per unit demand (e.g., per capita demand, average use per ERU). • Projected change/reduction in total water demands. • Projected change/reduction in water demand (system wide or per ERU) attributable to conservation/water use efficiency, to the degree possible. • General observations regarding the availability of new regional water supply sources as documented by the Water Supply Forum's 2012 Regional Water Supply Update. • General observations/data regarding SPU water supply status, per capita use trends, and projected supply/demand status, as documented in SPU's 2013 Water System Plan 6. Prepare a summary TM that includes the findings of the analysis. City Responsibilities 1. City staff and Tom Mortimer(as authorized by the City under separate contract) will work with HDR to provide data from Tom Mortimer's SRRWA files; including previous demand projections from 1996 and 2000. 2. Assist in providing available data for the Woodinville WD, Northshore UD, Bothell. 3. Review and comment on draft TM. Assumptions 1. City and Tom Mortimer will assist with this task. 2. Updates will build upon work completed as part of Task 4 and information provided by Tom Mortimer. Addendum to the 2007 Comprehensive Water Plan January 9,2013 Exhibit A—Scope of Services Page 11 . n 30