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Elisha Ezersky
Gas Distribution Engineer | PG&E
B.S. Civil & Environmental Engineering | UC Berkeley
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Outline
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Personal Introduction
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Starting at UCLA
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Transferring to UC Berkeley
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Classes
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Extracurriculars
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Life after college
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About Me
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Born & raised in the Bay Area
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Applied to various ivy leagues, MIT, CalTech, UC Davis, UCLA and UC
San Diego
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Started at UCLA in Fall 2006
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Began transfer process to UC Berkeley in November 2006
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Started at UC Berkeley in Summer 2007
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Graduated with a B.S. in Civil & Environmental Engineering in 2010
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Worked at the Bay Area Air Quality Management District
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Currently working for Pacific Gas & Electric
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Classes
UCLA 2006-2007 School Year - Freshman
Fall 2006
C&EE 1
Intro to Civil Engineering
CHEM 20A
Chemical Structure
MATH 31B
Integration & Infinite Series
ART 31A
Modernism
Winter 2007
CHEM 20B
Energetics & Change
MATH 32A
Calculus of Several Variables
PHYSICS 1A
Mechanics
ENGLISH COMP 3
English Composition – Rhetoric & Language
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Classes
UC Berkeley 2007-2008 School Year - Sophomore
Summer 2007
PHYSICS 7A
Mechanics & Wave Motion
Fall 2007
CIV ENG 70
Engineering Geology
ENGIN 10
Engineering Design & Analysis
ENGIN 36
Engineering Mechanics
MATH 1B
Calculus
PHYSICS 7B
Heat, Electricity, & Magnetism
Spring 2008
CHEM 1B
General Chemistry
CIV ENG 60
Civil Engineering Materials
ENGIN 7
Intro to Computer Programming
MATH 53
Multivariable Calculus
ENGLISH 139
Cultures of English
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Classes
UC Berkeley 2008-2009 School Year - Junior
Summer 2008
ENGLISH N1A
Reading & Composition
ENGLISH N135
Literature of American Cultures
Fall 2008
CHEM 1AL
General Chemistry Lab
CIV ENG 11
Engineering Systems & Sustainability
CIV ENG 100
Elementary Fluid Mechanics
CIV ENG 167
Engineering Project Management
MATH 54
Linear Algebra & Differential Equations
Spring 2009
CIV ENG 93
Engineering Data Analysis
CIV ENG 103
Intro to Hydrology
CIV ENG 111
Environmental Engineering
CIV ENG 114
Environmental Microbiology
CIV ENG 130
Mechanics of Materials
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Classes
UC Berkeley 2009-2010 School Year - Senior
Summer 2009
ENGLISH N132
The American Novel
Fall 2009
CIV ENG 115
Water Chemistry
CIV ENG 175
Geothermal & Geoenvironmental Engineering
MEC ENG 40
Thermodynamics
MEC ENG C176
Orthopedic Biomechanics
Spring 2010
CIV ENG 112
Environmental Engineering Design
CIV ENG 113N
Ecological Engineering for Water Quality Improvement
CIV ENG 192
The Art & Science of Civil & Environmental Engineering
CIV ENG 211B
Environmental Biological Processes
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Extracurriculars
Chi Epsilon
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Civil & Environmental Engineering Honor Society
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Berkeley requirements: > 3.2 GPA and in top third of class
Four pillars
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Scholarship (study hall, tutoring)
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Practicality (career fair, professional development)
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Sociability (hot pot & karaoke night, Fenton’s , game night)
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Character (Save the Bay, Rebuilding Together)
For more information:
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http://xe.berkeley.edu/
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http://www.chi-epsilon.org/
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Extracurriculars
Concrete Canoe
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National American Society of Civil Engineers (ASCE) Competition
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Four judged categories
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Technical Paper
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Presentation
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Final Product
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Races
Regional (MidPac) and National Conferences
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Also includes Steel Bridge, Water Treatment, Geo-Challenge, and
Transportation
For more information:
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http://canoe.berkeley.edu/
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Extracurriculars
Concrete Canoe – 2008 VoCal
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Won 2nd place at Nationals in Montréal
0.5
Rendered View
1.0
2.0
2
Detail A
Typical Bow and Stern
Centerline
of canoe
239.0
136.3
64.2
B
Bow
Bill of Materials
C
2
Detail A
Plan View
B
C
Part
Description
Qty
1
Structural
Concrete
2.6
cu. ft.
2
1/8" Steel
Prestress Cables
120
ft.
Carbon Fiber
Scrim
Reinforcement
White Concrete
Finishing Layer
124
sq. ft.
0.46
cu. ft.
5
Black Concrete
Finishing Layer
0.05
cu. ft.
6
Red Concrete
Finishing Layer
0.01
cu. ft.
3
2
4.0
.25
.125
30.5
6.0
1
VoCal
Hull Design
12.8
2
3
0.5
13.3
13.8
1.0
.125
Detail D
2.0
Elevation View
1.0
13.8
4
3
Notes:
1. Tolerances: Hull Design:
+/- 1/8"
Shell Layer Thickness:
+/- 1/16"
2. Units in Inches
3. Not Drawn to Scale
Applied during surface finish
Detail D
Gunwale
SECTION B-B
Widest Beam
SECTION C-C
Stern
Sheet
2 of 2
Drawn By:
David Leung
3/8/2008
Checked By:
Dan Gee
3/12/2008
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40.0
11.0
30.5
1
6.0
11.3
3.0
13.3
0.5
4.7
14.5
SECTION D-D
Widest Section
Rendered View
0.5
1
8
7
Detail C
284.0
17.1
Part
Description
Qty
1
2 lb. Expanded
Polystrene Foam
355
cu. ft.
2
Styrospray Sealant
3
Drywall
Compound
4
Epoxy
5
2"x4" Wood Stud
6
225 lb. Metal
Hook Screws
7
187 lb/in Springs
12
screws
12
springs
8
Turnbuckle
6
28.4
Detail B
Formwork Layers
Detail A
Bill of Materials
4
3.0
14.6
5
6
8.5
11.4
14.5
Each spring pair is stretched to 0.53"
3
8.5
11.4
5
14.5
2
6
SECTION E-E
Stern
D
28.9
E
40.0
Bow
146.8
D
80.0
E
61.8
Plan View
12.3
15.1
Detail B
Elevation View
48
ft.
VoCal
Formwork
239.0
Detail A
0.3
cu. ft.
0.3
cu. ft.
0.3
cu. ft.
Detail C
Notes:
1. Tolerance: +/- 1/8"
2. Units in Inches
3. Not Drawn to Scale
4. Cable anchorage
alignment approximate
Sheet
1 of 2
Drawn By:
David Leung
3/8/2008
Checked By:
Dan Gee
3/12/2008
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Extracurriculars
Concrete Canoe – 2009 Bear Area
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Won 1st at Nationals in Alabama
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Extracurriculars
Concrete Canoe – 2009 Bear Area
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Presentation: YouTube
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Extracurriculars
Concrete Canoe – 2010 Ex Calce Liberatus
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First canoe that did not use Portland cement in the structural mix
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Geopolymer concrete
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Extracurriculars
Concrete Canoe – 2010 Ex Calce Liberatus
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Unfortunately…
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Extracurriculars
Concrete Canoe – 2010 Ex Calce Liberatus
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What we learned:
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The lack of Portland cement
wasn’t the only factor
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Curing time, scrim placement,
etc. affected durability
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Bay Area Air Quality Management
District
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Local government agency
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Air Quality Engineer
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Evaluated industrial sources and created permit conditions to ensure
regulatory compliance
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Conducted Health Risk Screen Assessments with air quality modeling
program
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Pacific Gas & Electric
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Entry Engineer program
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San Francisco Distribution Planning Rotation
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Pipeline Engineering Rotation
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Distribution Control Center Rotation
Started working as a Gas Distribution Planning Engineer last June
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Pacific Gas & Electric
Overview
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How do we get gas to our customers?
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Backbone transmission
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Local transmission
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Local distribution
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Service lines
Distribution is separated by divisions and each division has their own
hydraulically independent systems
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Systems have minimum and maximum design pressures
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Pacific Gas & Electric
Mission Division
Five independent high
pressure systems:
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Fremont/Hayward HP
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Pleasanton/Livermore HP
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San Ramon/Dublin HP
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South Fremont HP
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Sunol HP
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Pacific Gas & Electric
Hydraulic Modeling
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SynerGEE
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Emergency Operations
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Hydraulic modeling software that takes into account pipe material,
diameter, length, etc. and uses historical load data to predict pipeline
pressures
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
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Pacific Gas & Electric
Castro Valley Leak
Leak found
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Questions?
Elisha Ezersky
eezersky@gmail.com