2/22/2016 SCVWD, Flood Preparedness, and Hazard Mitigation CADRE County F lood Pr e par e dne ss Wor kshop F e b rua ry 23, 2016 1 Presentation Outline SCVWD – Intro, Infrastructure, Hazards, Cascading Effects, Response Capabilities Santa Clara Valley Water District Introduction Critical Infrastructure Drinking Water Supply Infrastructure Storm and Tidal Water Infrastructure Hazards and Cascading Effects Flood Preparedness Activities Emergency Response Capabilities Hazard Mitigation (LHMP) 2 | SCVWD: I ntro duc tio n Sa nta Cla ra Co unty: Ge o -Po litic a l Co nte xt Sa nta Cla ra Co unty 1 o f 9 Co untie s tha t b o rde r SF Ba y 15 Citie s 1.9 Millio n Pe o ple 17.7 Billio n GDP 3 | 1
2/22/2016 SCVWD: I ntro duc tio n Governance: Elected Board of Directors and District Boundaries Sa ntos E stre me ra Kre me n Vare la Hse uh Ke e gan L e Zotte | 4 SCVWD Introduction SCVWD Intro: Authority, Purpose, and Policy Santa Clara Valley Water District Act Creates SCVWD and Governing Body Board of Directors Establishes Boundaries: all the territory of the County of Santa Clara Purposes and Powers: comprehensive water management for all beneficial uses and protection from tidal and stream floodwater. Protect highways; life & property; watersheds and watercourses. Board Policy Reliable, Clean Water Supply Natural Flood Protection Water Resources Stewardship 5 | SCVWD - Critic a l I nfra struc ture SCVWD Infrastructure: Critical Infrastructure that Underpins American Society Presidential Policy Directive 21 identifies 16 Critical Infrastructures that underpin American Society a nd who se a sse ts, syste ms, a nd ne two rks… a re c o nside re d so vita l to the Unite d Sta te s tha t the ir inc a pa c ita tio n o r de struc tio n wo uld ha ve a de b ilita ting e ffe c t o n se c urity, na tio nal e c o no mic se c urity, na tio na l pub lic he a lth o r sa fe ty, o r a ny c o mb inatio n the re o f. SCVWD CIKR: Build, Own, Operate, Maintain/Stabilize Dams Sector Energy Sector Water and Wastewater Systems Cascading Impacts to other Sectors (Transportation) 6 | 2
2/22/2016 SCVWD - I nfra struc ture SCVWD CIKR: Water Supply Syste m SCVWD Water Supply Infrastructure Map | 7 SCVWD – Wa te r Supply I nfra struc ture SCVWD CIKR: Water Supply Syste m – WT Ps 3 WTPs - 220 MGD SVAWPC -10 MGD 13 Major Water Retailers 8 | SCVWD – Wa te r Supply I nfra struc ture SCVWD CIKR: Water Supply Syste m – Pumping Pla nts a nd Pipe line s 3 Pump Stations 142 miles of Distribution Pipeline 9 | 3
2/22/2016 SCVWD – Wa te r Supply I nfra struc ture SCVWD CIKR: Dams (also part of our water supply syste m) 10 Reservoirs • Total Capacity: 169,000 AF • Restricted Capacity: 123,000 AF • Current Storage: 55,000 AF • 330 Square Miles of Watershed Above Reservoirs where precipitation is high • 960 Square Miles of Watershed Below Reservoirs where precipitation is low | 10 SCVWD – Wa te r Supply I nfra struc ture SCVWD CIKR: Dams (also part of our water supply syste m) Anderson Dam • Capacity: 90,000 AF • Restricted: 62,000 AF • Current: 32,000 AF • Length: 7.8 Miles • Height: 240 Feet • Seismic Retrofit to begin in FY17 Anderson Dam and Reservoir 11 | SCVWD – Wa te r Supply I nfra struc ture SCVWD CIKR: Dams (also part of our water supply syste m) • Capacity: 19,000 AF • Restricted: N/A • Current: 3,300 AF • Length: 2.5 Miles Lenihan Dam and Lexington Reservoir 12 | 4
2/22/2016 SCVWD – Wa te r Supply I nfra struc ture SCVWD CIKR: Dams (also part of our water supply syste m) • Capacity: 3,415 AF • Restricted: 2,218 AF • Current: 1,000 AF Guadalupe Dam and Reservoir | 13 SCVWD: F lo o d Co ntro l I nfra struc ture SCVWD CIK R: Da ms, L e ve e s, T ide Ga te s, Wa te r Re te ntio n & Co ntro l F a c ilitie s 800 Miles of Managed Creeks 200 Miles of Creek Ownership 100,000 parcels protected 66,000 parcels less protected Engineered Channels: Guadalupe River 14 | SCVWD: F lo o d Co ntro l I nfra struc ture SCVWD CIK R: Da ms, L e ve e s, T ide Ga te s, Wa te r Re te ntio n & Co ntro l F a c ilitie s Elevated Levees and Flood Walls Coyote Creek 15 | 5
2/22/2016 SCVWD: F lo o d Co ntro l I nfra struc ture SCVWD CIK R: Da ms, L e ve e s, T ide Ga te s, Wa te r Re te ntio n & Co ntro l F a c ilitie s Tide Gates | 16 Ha za rds Prepare and respond effectively to… emergencies • Earthquakes: • Largest Financial Losses in CA • 99% chance of > 6.7 quake in CA over the next 30 years • Dam and Levee Failures: • 9 Dam failures in CA since 1950s, • 140 Levee failures in Central Valley last 10 years. • Floods: • 2 nd most disaster proclamations in CA • 2 nd largest financial losses in CA 17 | Ha za rds: Dro ug hts & L a nd Sub side nc e Ha za rds: Dire c t Impac ts T his is Ca lifo rnia ’ s wo rst dro ug ht in r e c or de d histor y 18 | 6
2/22/2016 Ha za rds: E a rthq ua ke Ha za rds: Ca sc a ding E ffe c ts: Da m F a ilure Inundatio ns Da m F a ilure I nunda tio n Are a (Ande rso n Re se rvo ir) | 19 Ha za rds: L a rg e Sto rms Ha za rds: Dire c t I mpa c ts Hurric ane Patric ia: 10/ 23/ 15 Stro ng e st Hurric a ne E ve r Re c o rde d 200 mph susta ine d winds 20 | Ha za rds: Cre e k F lo o ding due to Sto rms Ha za rds: Dire c t Impac ts 21 | 7
2/22/2016 Ha za rds: Cre e k & T ida l F lo o ding Ha za rds: Ca sc a ding E ffe c ts…. F E MA 1% flo o d pla in ma p (sto rm a nd se a le ve l) Board of Directors: District 1 – Dennis Kennedy District 2 – Barbara Keegan District 3 ‐ Richard Santos District 4 – Linda J. LeZotte District 5 – Nai Hsueh District 6 – Tony Estremera District 7 – Gary Kremen 66,000 pa rc e ls in 1% F lo o dpla in | 22 Ha za rds: Cre e k & T ida l F lo o ding Ha za rds: Ca sc a ding E ffe c ts: 1% sto rm a nd Se a L e ve l F lo o dpla in Co mple te d a nd Ide ntifie d F lo o d Pro te c tio n CIPs 23 | SCVWD: F lo o d Pre pa re dne ss / Infra struc ture Ma inte na nc e Preserve flood conveyance capacity: Sediment & Vegetation Removal Before After Stream Maintenance 24 | 8
2/22/2016 SCVWD: F lo o d Pre pa re dne ss / Infra struc ture Re pa ir Preserve flood conveyance capacity: Levee Inspections, Bank Repair/Stabilization Before During After After | 25 SCVWD: F lo o d Pre pa re dne ss / Sa ndb a g Sta tio ns Infrastructure Systems : Stabilization of Critical Infrastructure 26 | SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s Prepare and respond effectively to… emergencies National Response Framework Capabilities • Operational Coordination • Operational Communications • Public Information and Warning • Situational Awareness • Infrastructure Systems 27 | 9
2/22/2016 SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s Operational Coordination: External Agency Perspective E OC ESF: Public Works and Dire c to r Engineering Ma na g e me nt Sta ff CaEF: Construction and Ops L o g s Pla ns F ina nc e Engineering F ire Utilities L a w Ca re & PW&E, C&E, OA: She lte r and/or Utilities C&E Branch Utilitie s | 28 SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s Operational Coordination: SEMS Levels Inte r-Ag e nc y E ng a g e me nt SOC REOC Pla nning & Info rma tio n Op Are a : E MA, OAS, OAC, Winte r Wor kshop SCC SMC OA OA Wa te rshe ds: SF C, Pa ja ro , Gua da lupe SCVWD Muni (SCC) Muni (SMC) E ve nts: Supe r Bo wl 50 EOC EOC EOC E xe rc ise s SCVWD Urb a n Shie ld DOC SCC OA F lood T T X SF C MAC T T X SCVWD SCVWD Muni (SCC) CP CP CP 29 | SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s 3.2.3. Prepare and respond effectively: Operational Coordination Operational Coordination: Management, Command, and Coordination Structures necessary to execute core capabilities SEMS ICS MACs Mutual Aid Op Area Concept 30 | 10
2/22/2016 SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s Operational Communication and Public Information and Warning Operational Communications and Public Information and Warning: The interoperable voice and data infrastructure necessary to ensure timely communication between response levels and affected populations. • RESPONDERS: Phone, Radios, Internet • PUBLIC: AlertSCC and IPAWs (via SCC OES) | 31 SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s Situational Awareness : Flood Forecast Mapping Situational Awareness: Decision-relevant Information • Forecast monitoring • Stream and Precipitation Gages, Cameras – remote measurements • Flood modeling – forecast mapping 32 | SCVWD – E me rg e nc y Re spo nse Ca pa b ilitie s Situational Awareness: Fit Teams 33 | 11
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