+ Elisha Ezersky Gas Distribution Engineer | PG&E B.S. Civil & Environmental Engineering | UC Berkeley

+ Outline Personal Introduction Starting at UCLA Transferring to UC Berkeley Classes Extracurriculars Life after college

+ About Me Born & raised in the Bay Area Applied to various ivy leagues, MIT, CalTech, UC Davis, UCLA and UC San Diego Started at UCLA in Fall 2006 Began transfer process to UC Berkeley in November 2006 Started at UC Berkeley in Summer 2007 Graduated with a B.S. in Civil & Environmental Engineering in 2010 Worked at the Bay Area Air Quality Management District Currently working for Pacific Gas & Electric

+ Classes Fall 2006 C&EE 1Intro to Civil Engineering CHEM 20AChemical Structure MATH 31BIntegration & Infinite Series ART 31AModernism Winter 2007 CHEM 20BEnergetics & Change MATH 32ACalculus of Several Variables PHYSICS 1AMechanics ENGLISH COMP 3English Composition – Rhetoric & Language UCLA School Year - Freshman

+ Classes UC Berkeley School Year - Sophomore Summer 2007 PHYSICS 7AMechanics & Wave Motion Fall 2007 CIV ENG 70Engineering Geology ENGIN 10Engineering Design & Analysis ENGIN 36Engineering Mechanics MATH 1BCalculus PHYSICS 7BHeat, Electricity, & Magnetism Spring 2008 CHEM 1BGeneral Chemistry CIV ENG 60Civil Engineering Materials ENGIN 7Intro to Computer Programming MATH 53Multivariable Calculus ENGLISH 139Cultures of English

+ Classes Summer 2008 ENGLISH N1AReading & Composition ENGLISH N135Literature of American Cultures Fall 2008 CHEM 1ALGeneral Chemistry Lab CIV ENG 11Engineering Systems & Sustainability CIV ENG 100Elementary Fluid Mechanics CIV ENG 167Engineering Project Management MATH 54Linear Algebra & Differential Equations Spring 2009 CIV ENG 93Engineering Data Analysis CIV ENG 103Intro to Hydrology CIV ENG 111Environmental Engineering CIV ENG 114Environmental Microbiology CIV ENG 130Mechanics of Materials UC Berkeley School Year - Junior

+ Classes UC Berkeley School Year - Senior Summer 2009 ENGLISH N132The American Novel Fall 2009 CIV ENG 115Water Chemistry CIV ENG 175Geothermal & Geoenvironmental Engineering MEC ENG 40Thermodynamics MEC ENG C176Orthopedic Biomechanics Spring 2010 CIV ENG 112Environmental Engineering Design CIV ENG 113NEcological Engineering for Water Quality Improvement CIV ENG 192The Art & Science of Civil & Environmental Engineering CIV ENG 211BEnvironmental Biological Processes

+ Extracurriculars Civil & Environmental Engineering Honor Society Berkeley requirements: > 3.2 GPA and in top third of class Four pillars Scholarship (study hall, tutoring) Practicality (career fair, professional development) Sociability (hot pot & karaoke night, Fenton’s, game night) Character (Save the Bay, Rebuilding Together) For more information: Chi Epsilon

+ Extracurriculars National American Society of Civil Engineers (ASCE) Competition Four judged categories Technical Paper Presentation Final Product Races Regional (MidPac) and National Conferences Also includes Steel Bridge, Water Treatment, Geo-Challenge, and Transportation For more information: Concrete Canoe

+ Extracurriculars Won 2 nd place at Nationals in Montréal Concrete Canoe – 2008 VoCal

+ Won 1 st at Nationals in Alabama Extracurriculars Concrete Canoe – 2009 Bear Area

+ Extracurriculars Presentation: YouTubeYouTube Concrete Canoe – 2009 Bear Area

+ Extracurriculars First canoe that did not use Portland cement in the structural mix Geopolymer concrete Concrete Canoe – 2010 Ex Calce Liberatus

+ Extracurriculars Unfortunately… Concrete Canoe – 2010 Ex Calce Liberatus

+ Extracurriculars What we learned: The lack of Portland cement wasn’t the only factor Curing time, scrim placement, etc. affected durability Concrete Canoe – 2010 Ex Calce Liberatus

+ Bay Area Air Quality Management District Local government agency Air Quality Engineer Evaluated industrial sources and created permit conditions to ensure regulatory compliance Conducted Health Risk Screen Assessments with air quality modeling program

+ Pacific Gas & Electric Entry Engineer program San Francisco Distribution Planning Rotation Pipeline Engineering Rotation Distribution Control Center Rotation Started working as a Gas Distribution Planning Engineer last June

+ Pacific Gas & Electric How do we get gas to our customers? Backbone transmission Local transmission Local distribution Service lines Distribution is separated by divisions and each division has their own hydraulically independent systems Systems have minimum and maximum design pressures Overview

+ Pacific Gas & Electric Mission Division Five independent high pressure systems: Fremont/Hayward HP Pleasanton/Livermore HP San Ramon/Dublin HP South Fremont HP Sunol HP

+ Pacific Gas & Electric SynerGEE Hydraulic modeling software that takes into account pipe material, diameter, length, etc. and uses historical load data to predict pipeline pressures Emergency Operations In case of a leak, dig in, etc., we use SynerGEE to model whether a pipe can be cut off or needs a bypass Castro Valley Example Hydraulic Modeling

+ Pacific Gas & Electric Castro Valley Leak Leak found

+ Questions? Elisha Ezersky