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Home My WebLink AboutItem 12 PPP 11-6-19 Ops Committee - SP-152 OCSD Climate Resiliency - SP = 152 Climate Resiliency Study Orange County Sanitation District 4� 4A Nasrin Nasrollahi, Senior Engineer Operations Committee - November 6, 2019 Lilf ,� S. RU �A A•CD4 �o Reducing Greenhouse C Gas Emissions ►- Achieving Greenhouse Gas (GHG) Emission Goals at OCSD We have reduced GHG emissions using several different means CALIFORNIA GOAL Water recycling Avoid emissions from pumping Reduce GHG emissions 40% �✓ imported %.eater below 1990 levels by 2030 Senate Bill 32 Renewable energy sources Solar panels designed for nev,v headquarters building 40% Low-emissions transportation Fuel-efficient and electric vehicles. compressed natural gas fueling Energy and resource recovery • �� Methane produced during wastewater treatment used as an energy source •.............................: �� High-efficiency assets Variable frequency drives on motors; occupancy sensors for lighting and HVAC �illllll Battery storage system Offset power demand during critical times i 4VW4--W . Regulatory Drive EO-S-13-08 Assembly Bill 2800 OCSD Strategic Plan State agencies to State agencies shall plan for sea level consider impacts of rise and climate climate change NPDES Permit impacts through when planning, It is anticipated that a coordination of the designing, building "Climate Change Effects state Climate state infrastructure. Vulnerability Assessment and Mitigation Plan" is Adaptation (July 2020) required as part of the Strategy. NPDES Permit even ima a ~- ■ c � ence a erences �� t; � International • Statewide • • • CLIMATE CHANGE2014 Fourth National _.. . - sro��a� Climate Assessment �ea-Level VOIufnP II ' 'r Planning 00-1 tzv_ Vulnerability Assessment ' 30-Year 50-Yea r 80-Yea r Current Horizon Horizon Horizon 2020 2050 2070 2100 Planning Horizon Life-Cycle Planning Horizon for Planning Horizon for Assets with New/Retrofitted for Most Assets Extended Life- Infrastructure Cycle Horizon There is time to adapt, and time to course-correct through successive update cycles of the Resiliency Plan L: -A Climate Forces Flooding threatens Plant No. Coastal infrastructure is Fire and flying embers are 2 and pump stations near vulnerable to tsunamis. a risk to buildings near the coast and heavy vegetation. major channels. c Sea Level Rise and Floodin g Tsunami Wildfires Inland areas are subject to CUz Greenhouse gases, such higher temperatures and I �� as carbon dioxide, impact longer heat waves. the earth's atmosphere and Extreme Heat CO2 Reduction climate. Wildfire and Extreme Heat 4 INK The Cocos Fire burns in San Marcos, California,in 2014. (theatlantic.com) Elevated Risk of Utility-Associated Wildfire t r� ■ Extreme Risk of Utility-Associated Wildfire . .......... . OCSD Service Area Map data provided by the California Public Utilities Commission Ventura Fire, California, Dec 2017. Waghakouchak) Floodingin Orange ounty Storm Event, Dec 2010 i - --_ King Tide 2012, 8th St and Coast Hwy, Balboa Island (www.scpr.org) Huntington Beach, (OCREGISTER) Plant No. 2 Newport §lv SaIDoa.Penlnsul• ♦ �"'r' Flooded streets in Huntington Beach Flooded streets in Newport Beach 1938 flood and Santa Ana Levee failure Storm Event 1983, OCREGISTI 9;-2, Extreme Flow Events Average Monthly Flow MGD vs. Peak High Flow Events g Y � ) g • 600 550 563 550 521 500 485 494 501 475 459 450 411 400 350 300 266 (1990) 184 _O LL 250 (2018) 200 150 100 1980 1985 1990 1995 Year 2000 2005 2010 2015 0 Total average flow 0 Peak Flow Aq 100-year FEMA Flood Maps (2019) Slater Ave PS Plant No. 2 Rocky Point PS Lido PS Bitter Point PS Bay Bridge PS 100-Vr FEMA Flood Impacts 15th Street PS to OCSD Facilities Crystal Cove PS Legend -'I L_J OCSD Facility 0 100-yr FEMA Flood A Street PS Sea Level Rise fim� Z0- Relative Sea Level at NOAA Los Angeles Tide Gauge [ID:9410660] 8 Trend = 0.39 in/decade a 6 V C 4 > L v 2 v LO 0 Q) E, —2 c 0 — l0 O Izt CO (V l0 O It CO fV l0 O It 00 fV l0 O It 00 (V 110 O 4 00 N m m m 4- 4 Ln Ln Ln l0 l0 I, I\ r- 0o 0o Ol Ol Ol O O r-I r-I r-I Ol 0) Ol m 0) Ol a) a) 0) 0) m m m m M Ol m m m O O O O O r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I r-I N N N N N (http://tidesandcurrents.noaa.gov/sltrends/sltrends.shtml) Level Rise (SLR) Sea - Ow <y Pro ' ections F 10.00 Blue: emissions continue to rise throughout the 21st century 9.00 8.00 7.00 ------- N 6i 6.00 _ z N 5.00 -- 4.00 z v v s / 3.00 = — N 2.00 or 1.00 --• P... ..... .. 0.00 2020 2030 2040 2050 2060 2070 2080 2090 2100 Year Level Rise (SLR) Sea Projections F 10.00 Blue: emissions continue to rise throughout the 21st century 9.00 Orange: emissions peak around 2040, then decline 8.00 7.00 6.00 z ` N J 5.00 0 4.00 J �• 3.00 2.00 s s 4 1.00 s o e ...0, 0.00 2020 2030 2040 2050 2060 2070 2080 2090 2100 Year Sea Level Rise (SLR) 0-A Projections 10.00 Blue: emissions continue to rise throughout the 21st century 9.00 Orange: emissions peak around 2040, then decline 8.00 4 � 7.00 6.00 x ` Q ,r •a N 5.00 — �o 4.00 �► s! Recommended range 3.00 _ of sea level rise for 2.00 : future CIP projects 1.00 s o 0.00 2020 2030 2040 2050 2060 2070 2080 2090 2100 Year L[FFIooding and y Sea eve i s e off of • . _ -4�- d5 I.iltn._ - P � •Truer�77,��,a � 4`�'�.t ) ��y@•��S � .,�1 /`�' !{' ;!r �..d - •• .rsl.rs :'._�.. h :� �'• :ry 11 4`^ ► �1 ,� - r �hr , • i :�, a I -'.ate, i w'�� -,�.F - _ �r<� 4�6y '. r .. H il 4. - �t,• ' . - 5.+ yu. . r �• `1\ ��ud '0� ��.+1 � + ,"L s _'r V��'1.7�o t».,R - • '+'�' y i o .y - p � is �q �. ,., J`, ,�"�+- }_r uyFr •5•. Ole l4f It'ry a W 15th St PS to OCSD Facilities 0. Legend 0••-• OCSD Facility -.1 r1 2070 SLR1- Ir, `so*— L: _A American Society of Civil Maximum Considered Tsunami - Runup Elevations -- Westside PS Legend Engineers (ASCE) 7-16 4 =) OCSD Plant or Pump Station (PS) Seal Beath PS 23 17 14 10 Current maximum extent - �` Maximum Runup Elevation (ft) inundation zones. Slater Ave PS - i u :._Plant No. 1 , College Ave PS r .Win'St PSr Minimum Design Loads and Associated Criteria forMac'Arthu r PS' Buildings • Other Structures lant No.2 y Bitte I iffit PS J QcF' Bay Bridge PS 15th St PS AStPS Crystal Cove PS ASCE _ y a a ion xam e IIControl Room Hatch Pump Roo flkf" GIMIIU/1�■I�I I/IF I I�N(�� Ji a PUMPSTATION Adaptation Example 1 00-yr FEMA Flood +2070 SLR 3.7 ft 500-yr FEMA Flood Control Room without S LR 2019 Barrier--, Barrier FLOOD 100-yr FEMA Flood PATHWAY '— �[p�— — — +2050 SLR 15ft —•PATHWAY — — -• t II 1 Oo-yr FEMA Flood without S LR 2019 Pump Room -fit PUMPSTATION Adaptatmion 1 �1 Recommended Capital Improvements for Lido Pump Station Ilk 4 drywell hatches below flood level Watertight replacement of drywell hatches s '• '1 Flood pathway Stop logs over doors or sealed doors • •r L Recommendation: Plant No. 2 Boundary Wall ' ``x t t ,� `•', Top of Wall 22.0 ft Top of Wall 21.0 ft .� T-WALL DETAIL DRAWING l Flood Side 4• Protected Side Brookhurst_ _Plant t' Street No. 2 100-year FEMA Flood + 2070 SLR ,t y Flood Gate Flood Wall ! tam 57: t� i•' r 7 <a Summary of Impacted 7,w Facilities ` Extreme Heat `i =boding =looding a Sea Level R Tsunami Yorba Linda PS �Westside PS OCSD u PUMP STATIONS (PS) AND TREATMENT PLANTS 1 Edinger PS� I `} Seal Beach PS Slater Ave PS Plant No. 1 Main Street PS 1 • Plant No.2 College Ave PS _MacArthur PS * Rocky 01 Bitter Point PS PPS t Bay Lido PS Bridge PS 15th Street PS F�- A Street PS(�y CrystCoval PS ecommen a ions r- Facility Construction Impacted Planning Cost Horizon Slater Pump Station $0.5 million Lido Pump Station $0.5 million 15th Street Pump Station $0.1 million0 A Street Pump Station $0.4 million0 Plant No. 2 $28 million 205012070 -`so*— : �`'1 - OCSD Policy OCSD aims to design, maintain and operate valuable wastewater assets that withstand or adapt to adverse conditions in a reasonable manner that is both cost-effective and sustainable for present and future generations. These adverse conditions include heavy rains, flooding, sea level rise, earthquakes, tsunamis, extreme heat, wildfires and electrical grid interruptions. - I Li-31 ply �•' �1 Questions ?