1. EBMUD: A Decade of Seismic Mitigation Progress – More Work to Do By Bill Cain, S.E. Project Manager Seismic Mitigation Planning Member, ABAG Lifeline Infrastructure and Hazards Committee Presentation to ABAG Regional Planning Committee December 3, 2008

2. ebmud.com BACKGROUND EBMUD: Provides water to portions of Alameda & Contra Costa Counties Serves:  1.3 million people  20 Cities  15 Communities Water Sources:  Normal: Mokelumne River with some local supply  Drought years: Will also supply from American River via Folsom South Canal

3. ebmud.com EBMUD Water Supply System

4. ebmud.com EBMUD Water Supply System “From Snowflakes to the Bay”

5. ebmud.com EBMUD Facilities EBMUD Facilities date from 1880s to the Present: 170 Distribution Reservoirs 130 Distribution Pumping Plants 4200 miles of Distribution Pipe 270 Miles of Raw Water Transmission Pipe 3 Terminal Storage Reservoirs (Raw Water) 2 Emergency Storage Reservoirs 18 Tunnels

6. ebmud.com Bay Area Faults Mt. Diablo Thrust Midland

7. ebmud.com Bay Area Faults

8. ebmud.com EBMUD Seismic Hazards DELTA: Liquefaction, Flooding

9. ebmud.com Where Do We Stand? Physical Facilities Completed (2006) 10 Year Seismic Improvement Program for Distribution System Completed (2005) Seismic Strengthening of Mokelumne No. 3 Aqueduct Begun the Seismic Upgrades for San Pablo Dam (scheduled completion – Spring 2010)

10. ebmud.com How Will We Respond Operational Preparations Established Emergency Operations Team (1993)  Guides District Operations & Recovery following disaster  65 Members, plus each position has a backup and alternate  Liaison to Cities, Counties, Office of Emergency Services Developed Emergency Response Plan for Aqueducts in the Delta including stockpiling materials Developed Emergency Response & Business Continuity Plans for Hayward, Calaveras and Concord EQs for all EBMUD Departments Regularly exercises its emergency response plan

11. ebmud.com

12. What We Are Planning? EBMUD will: Re-evaluate Seismic Performance of System. Perform Additional Seismic Upgrades Monitor State-of-the-Art Seismic Lifeline Engineering Continue to Improve Response Plans including Joint Exercises with Outside Agencies (Cities, Counties, Water Agencies. Consider both Raw and Treated Water Systems. Make Seismic Improvements to Vulnerable Delta Facilities  Short Term: Cross Connections & Scour Protection  Medium Term: Plan for hardening vulnerable areas  Long Term: Improve vulnerable link through Delta –Large Investment will be required ($1 Billion Range) –Heavily Impacted by State Delta Vision Process

13. ebmud.com Goal: A Safer Tomorrow