EBMUD: A Decade of Seismic Mitigation Progress – More Work to Do By Bill Cain, S.E. Project...
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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
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Transcript of EBMUD: A Decade of Seismic Mitigation Progress – More Work to Do By Bill Cain, S.E. Project...
EBMUD: A Decade of Seismic Mitigation Progress – More Work
to Do
ByBill Cain, S.E.Project Manager
Seismic Mitigation PlanningMember, ABAG Lifeline Infrastructure and Hazards Committee
Presentation to
ABAG Regional Planning CommitteeDecember 3, 2008
ebmud.com
BACKGROUNDEBMUD:• 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
ebmud.com
EBMUD Water Supply System
ebmud.com
EBMUD Water Supply System
“From Snowflakes to the Bay”
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
ebmud.com
Bay Area Faults
Mt. Diablo Thrust
Midland
ebmud.com
EBMUD Seismic Hazards
DELTA: Liquefaction, Flooding
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)
ebmud.com
How Will We RespondOperational 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
ebmud.com
Hayward Magnitude 7 Earthquake -Before vs After Upgrades
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0 10 20 30 40 50 60 70 80 90 100
Time A fter Earthquake - Days
Cust
om
er S
erv
ice
Before Upgrade
After Upgrade
"STABILIZED"
Backbone Restored
"MINIMUM SERVICE"
"IMPAIRED SERVICE"
100%
182 Days
"IMPAIRED
SERVICE"
ebmud.com
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
ebmud.com
Goal: A Safer Tomorrow
