Item #5
November 12, 2024
Item #5: IS/MND/MMRP and
Route Approval for the SVP
115kV Transmission Line
from NRS to KRS
1852 RTC 24-1040
THE MISSION CIN
November 12, 2024
1 * SILICON
› VALLEY
POWER.
OTY OF SANTA CLARA
Key Items For Discussion
Agenda - Per October 8 and October 22 Council Meetings
• Introductions
• Project Need
• Summary of Routes
• Residential along Route C
• Preliminary EMF results on Route C
• EMF Presentation
2 POST MEETING MATERIAL
1 SILICON
VALLEY
POWER.
CITY OF SANTA CLARA
Introductions
• SVP Staff
• ECI Staff - Engineers and EMF modeling
- Oliver Beres, Associate Engineer
• Aspen Staff - Environmental Consultants
- Hedy Koczwara, Vice President/Senior Environmental Scientist - Chuck Williams, Principal/Transmission Engineer
• Exponent - EMF Presentation
- Gary Johnson Ph.D.
• Ph.D., Electrical Engineering, University of Illinois, Urbana-Champaign, 1979 • M.S., Physics, University of Illinois, Urbana-Champaign, 1976 • B.S., Engineering Physics, University of Illinois, Urbana-Champaign, 1974 - Gabor Mezei M.D., Ph.D
• Ph.D., Epidemiology, University of California, Los Angeles (UCLA), 1995 • M.D., Medicine, Semmelweis University of Medicine, 1990 • Multidisciplinary scientific research program at the Electric Power Research Institute (EPRI) for health effects associated with exposure to power frequency and radiofrequency EMF 3 SILICON
VALLEY
POWER.
OTY OF CANTA CLARA
115kV Transmission Line
Northern to Kifer Receiving Station NORTHERN
RECEIVING
STATION
• Project Scope: Construct a new 115kV overhead
dum
transmission line of approximately 2.24 miles between
Northern Receiving Station and Kifer Receiving Station.
Road
• Needed to accommodate approved and under construction load growth and reliability
• Transfer additional power and redistribute loads (101 NORTH CIA
Cecide
• System Operating Limit will be limited to ~ 819MW if KIFER transmission line is not constructed RECEIVING
STATION
• System Operating Limit with it ~ 1300MW
• Key Items: schedule, constructability, and power delivery • Construction is estimated to take approximately 14 months LEGEND = Route A
and be completed by early 2028. Bra Route B
Route C
4 2
SILICON
VALLEY
POWER.
CTY OF SANTA CLARA
Project Need
• Recorded a new peak load of 705MW in July 2024 and again 718MW and 720MW in October 2024
• 5 Key projects all with 2028 Completion dates:
- Kifer Receiving Station (KRS) Rebuild
- Scott Receiving Station (SRS) Rebuild
- Northern Receiving Station (NRS) Upgrades
- LS Power Transmission Line (CAISO Project)
- 115 kV Transmission Line
• Needed to accommodate approved and under construction load growth and reliability
- Includes large industrial users such as data centers and corporate headquarters
- Includes large residential
- With 115 kV line ~ capacity 1300 MW
- Without 115 kV line ~ capacity 819MW
- Approximately $500 million in sales annually
- $25 million General Fund annually
5 SILICON
VALLEY
POWER
OTY OF LANTA CLAME
115 kV - Three Routes Considered
NORTHERN
• Council Information Session March 2024 RECEIVING
STATION
• An assessment was prepared to determine the preferred (dum route for the Proposed Project.
• Route B (considered and eliminated)
• UPRR right of way is too narrow (concerns with
Mission College
inductive interference on the rail lines and additional 1101 NORTH
permitting and design review) CLAI
• Properties surrounding UPPR do not have sufficient KIFER Stree:
space to place structures RECEIVING
STATION
• Require extensive easement costs and coordination
• UPRR permits Averte
LEGEND
• Even if it was feasible, it would not meet 2028 schedule - Route A se Route B
= Route C
6 3
SILICON
VALLEY
POWER
CITY OF SANTA CLARA
Three Routes Considered
NORTHERN
RECEIVING
• Route C (considered and eliminated) STATION
dum
• Majority within Creek boundaries
• Replace existing 6okV line where available
• Easements and permitting - unknown if
permits would even be feasible and if feasible
© Vissor College
would not meet schedule due to extensive
Tot NORTH
permitting schedules CLAI
George
KIFER * Street
• Longest route
RECEIVING
• Would not meet 2028 schedule STATION
• Route A (Proposed Project) - Analyzed in IS/MND
LEGEND
Route A
Route B
Route C
7 SILICON
VALLEY
POWER
OT OF LANTA CLARA
Three Routes Considered
Route A (Underground Option for Northern Segment) NORTHERN
RECEIVING
• Constraints with constructability, schedule, and power STATION deliverability OLA
• 25 existing utilities crossing or conflicts with
underground alignment in Lafayette
• High water table and may require excavations greater
Vission Cellege
than 20' deep
101 NORTH
• Utility spacing requirements may not be met cLat
• Requires relocation of 300 feet of two transmission gas KIFER mains for PG&E and DVR SCOT REV STATION RECEIVING
• The DVR shutdown scheduled twice a year
• Will require extensive PG&E construction activities, on PG&E schedule, and will not meet 2028 schedule (LEGEND
Route A - Northern Segment
= Route A - Southern Segment
Route A (Proposed Project) - Analyzed in IS/MND
8 4
* SILICON
VALLEY
POWER
OTY OF SANTA CLARA
Comparison of Northern Segment
Overhead Underground
Ability to meet 2028 schedule Can not meet 2028 schedule Relying on PG&E for utility relocation
• DVR shut-down
Reduced transmission capacity
Maximum transmission capacity
Ability to accommodate future growth Lack of provisions for future growth Reduces construction disruption to the public Extended construction timelines with extended lane closures and traffic control
Ease of maintaining the system Longer restoration times in emergency situations Northern Segment Costs: ~S9.5 Million Northern Segment Costs: - $19 Million Total Project Costs: -$36 Million Total Project Costs: ~S45.5 Million 9 SILICON
VALLEY
POWER
GOOF SUITA CULMA
Lafayette Street Renderings
Facing North near Eisenhower Drive Facing South near Hope Drive 10 5
Northern
Receiving Station
Residential Considerations
Residential Addresses within 450 ft of
New Transmission Line
Total Addresses
Route C 653
Route A 1,000
Route C - Would also expect similar feedback
• Assumes construction on farthest side of the creek -
residential numbers on Route C would increase
• Route C numbers do not include the planned residential development for Freedom Circle
Kifer Receiving Station
11 Northern
Route C Preliminary EMF Study Receiving Station
Route C
Residential Existing 2024 Future 2028
Segment Approx. Normal - Peak Normal - Peak
Distance (ft) * Load (mG) Load (mG)
1C 100-110 00-14 59 - 8.7
210-220 212 - 31 9 216 - 32 4
40-50 4.9 - 12.8 180 - 29.1
4C 170-180 0.0-0.9 21-29
Route A
Residential Existing 2024 Future 2028
Segment Approx. Normal - Peak Normal - Peak
Distance (ft) * Load (mG) Load (mG)
2 60 6.4 - 8.0 14.3 - 17.9
60 09 - 1.1 142 - 17.7
Approximate distance to nearest residential building Kifer Receiving Station 1 • Values would increase if constructer on opposite side of creek 12 Schedule
Task • Timeframe
Feb 2023 - May 2026
Design
Easement Acquisition Jan. 2024 - May 2026
CEQA Process
Identify Project Need Jan. 2024
Preparation of conceptual design and start of CEQA Jan 2024 - Mar 2024 CEQA Community Outreach (Scoping) April 8 - May 29, 2024 Publication of Draft IS/MND and 30-day Public July 31, 2024 - August 30, 2024 Review Period
Publish Final IS/MND September 24. 2024
City Council Consideration October 8, 2024, November 12. 2024 Permits Feb. 2024 - Nov 2025
Material Procurements Oct 2024 - Nov. 2026
Anticipated Construction Nov. 2026 - Mar. 2028
13 E ponent*
Overview of Electric and Magnetic Fields (EMF)
Gary Johnson, Ph.D.
Gabor Mezei, M.D., Ph.D.
November 12, 2024
SHAN: MIS
14 7
Speakers
Gary Johnson, Ph.D. Gabor Mezei, M.D., Ph.D.
Senior Managing Scientist Principal Scientist
Health Science Practice
Electrical Engineer 3 Computer
Science Practice
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Eponent
15 Who We Are
Exponent is a multi-disciplinary engineering and scientific firm dedicated to solving important science, engineering, and regulatory issues for clients.
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Exponent
16 8
Nature and Sources of EMF
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Eponent
17 What are Electric and Magnetic Fields
• Electric and magnetic fields are produced by anything that:
- Generates
- Transmits, or
- Uses electricity
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E ponent
18 9
Electromagnetic fields
• Key Characteristic is FREQUENCY
• Frequency refers to the number of times per second that the field changes direction - Measured in unts of Hertz (Hiz:
Low Frequency High Frequency
E ponent
19 Electromagnetic Spectrum
10: 0IE I0 10
Hz kHz
AWW.
STARES
WOOM UNE RADATEN
V Broadcas Microwave Diagnostic Fadiation
1.700 мН 3-30 GHT 3-50 ESZ
50 100H=
Mobile Phor. Therapeutic
tower Liner 3-22 CH Radiation
Ramire
s0-s07ee AM S20-1610 KHZ 300-5000 EHz
FM 975-108 MH=
.215 C
WI-FI
2.4-25 GHz
5-5 8 GHz
Focus of our presentation. Extremely low frequency (ELF) electric and magnetic fields (EMF) - 50-60 Hertz (Hz) Alternating current (AC!
- Also referred to as power frequency EMF
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Eponent
20 10
Properties of Power Frequency EMF
Electric Fields Magnetic Fields
• Produced by voltage • Produced by the flow of electric current
• Measured in units of volts per meter
(V/m) or kilovolts per meter (kV/m) • Measured in units of milligauss (mG) or gauss (G); also microtesla (NT)
• Strength decreases quickly with or tesla (T)
distance from the source
• Strength decreases quickly with
• Blocked by conductive objects (e.g., distance from the source trees, buildings, and fences
• Unlike electric fields: not blocked by
common conductive objects
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E ponent
21 Typical Profile of Magnetic Field Levels from a Transmission Line Magnetic Fleld Profile
3-ahase 121 KVAC Transmission Line with 1000 Amperesiphase Magnetic Field [mG]
-50 50 100 150 200 250
Distance from Center (feet)
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E ponent
22 11
Common Sources of Power Frequency EMF
- Electrical appliances
- Power tools
- Building wiring
- Grounding systems (e.g., water pipes)
- Nearby distribution and transmission lines
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Eponent"
23 Household Sources of Magnetic Fields
Indoors, the primary sources of magnetic fields in most homes and buildings are the electrica iring and apoliance
AC Magnetic-field levels (mG) in the Home*
Distance from Source
Source 6 inches 1 foot 2 feet
Hair dryer 300 1 -
Electric shaver 100 20 -
Blender 70 10 2
Can Opener 600 150 20
Electric range 30 8 2
Vacuum cleaner 300 60 10
Power saw 200 40 5
source decine and vagnate rieves Assocted thine Use of Elecine Bower Natonalingture gi Environmental Mean Sciences (NIEMS, and Netionar Instates of Heart June 2002 24 E ponent
24 12
EMF Health Research
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Eponent
25 Research on Health Effects of Power Frequency EMF
• Research on the possible health effects of power frequency EMF has been on-going since the late 1970s
• Since that time, thousands of studies have been published in this area
• Research has been regularly and repeatedly reviewed by many national and international public health and scientific agencies - Assemble panels of experts to comprehensively review the literature - Results of relevant studies are assessed together to form a conclusion 2410256 000 - 9629 26
Eponent
26 13
Overview of the Scientific Review Process
• All research studies have strengths and limitations
• Scientific process involves consideration of all the evidence - Human studies (epidemiology studies)
- Animal studies (in vivo)
- Laboratory studies of cells and tissues (in vitro)
• Each study can be considered a piece of the puzzle
- When examined all together, provides a more complete picture of the exposure- disease relationship
Cannot draw a valid scientific conclusion from a single study! 2410250.000-6929 27
Eponent
27 Agency Reviews of Power Frequency EMF
Scientific Organization Country / Agency Publication Dates Federal-Provincial-Territorial Radiation Protection Canada 1998, 2005 Committee (FPTRPC)
International Commission on Non-lonizing Radiation International 1998, 2010 Protection (ICNIRP)
National Institute for Environmental Health Sciences United States 1998 (NIEHS)
International Agency for Research on Cancer (IARC) United Nations 2002 National Radiological Protection Board (NRPB) United Kingdom 2004 Swedish Radiation Protection Authority (SSI) Sweden 2007, 2008 United Nations 2007
World Health Organization (WHO)
Scientific Committee on Emerging and Newly European Commission 2007, 2009, 2015, 2023 Identified Health Risks (SCENIHR)
Health Council of the Netherlands (HCN) Netherlands 2009 2009, 2010, 2013, 2014, 2015, 2016,
Swedish Radiation Safety Authority (SSM) Sweden 2018, 2019, 2020, 2021, 2022, 2024 The European Health Risk Assessment Network on European Commission 2010, 2012 Electromagnetic Fields (EFHRAN)
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E'ponent
28 14
Summary of Scientific Consensus
• None of the reviewing agencies have concluded that power frequency EMF, at the levels we typically encounter in our daily lives, cause or contribute to adverse health effects
"Despite the feeling of some people that more research needs to be done, scientific knowledge in this area is now more extensive than for most chemicals." "Despite extensive research, to date there is no evidence to conclude that exposure to low level electromagnetic fields is harmful to human health." - World Health Organization (2024)
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Eponent:
29 EMF Exposure Guidelines
S41334000-865 30
Eponent
30 15
Limits on Exposure to Power Frequency EMF
• No federal standards or guidelines for • Two international scientific limiting exposure to power frequency organizations developed limits to electric and magnetic fields protect workers and the public - Based on review of the health research
• No exposure limits set in the State of
California • Limits are set to be much lower than
the lowest levels for which there are
• Several states have developed limits known effects of exposure for electric fields and/or magnetic fields - Acute effects that occur at very higl - Not based upon health-based risk xposure levels
assessments - No established effects of long-term
exposure
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Elponent ca Gop le
31 International Exposure Guidelines for General Public Exposure to Magnetic Fields
Magnetic Field Limit
Organization (mG)
Intemational Commission on Non-lonizing Radiation Protection 2,000 (ICNIRP)'
International Committee on Electromagnetic Safety (ICES)? 9.040 ert Cmi de NomOmn Pacs Pretecon Cy Gudees or Hmting excosure e lime varyng erectrc and magnesc rieis ! -2 = •30 (Hz) Mea:t Phys 39 918-36 200
international Commiltee on E ectramagnetic Safely (CES) •SEE Standard for Satery cêvels with Rescecrle Humar Exposure ro Elecure Vagnetic anc Electroragnesc = aids 0 +2 0 300 CHz (EEE Sic C95 1) Carngenda 2 Newwork E8= 2020 2410256 000 - 8529 32
020N Eret BE
Eponent
32 16
Summary
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33 Summary
• EMF are present nearly everywhere in our modern society • Research on power frequency EMF has been on-going since the 1970s, resulting in thousands of published studies in this area • Agency reviews of this large body of research have not concluded that exposure to power frequency EMF are a source of adverse health effects • Health-based exposure guideline limits have been developed for power frequency EMF
- elects that occur at very high tied levenly established effects from exposure (ie, acute 2410256 000 - 8629 34
Eponent
34 17
E ponent™
Thank You!
35 020241
35 Item #5: IS/MND/MMRP and
Route Approval for the SVP
115kV Transmission Line
from NRS to KRS
1852 RTC 24-1040
THE MISSION CIT
November 12, 2024
36 18
11/a/2024 Item H5
From:
To: Mayor and Council; Clerk; Kevin Park; Karen Hardy; Anthony Becker; Sudhanshu Jain; Kathy Watanabe Cc: Prashant Tiwari; [email protected]; Ruchika Sarna; Shankar Pandravada; [email protected]; Subject: SVP 115kv NRS KRS project concerns
Date: Monday, November 11, 2024 7:19:37 PM
You don't often get email from [email protected]. Learn why this is important Dear respected Mayor, all council members and staff
A lot of concerned residents plan to show up for the council meeting tomorrow, for Agenda #5. We want to share a youtube video from a realtor at the link below. Since we won't have enough time tomorrow, we would appreciate if you could watch this video beforehand.
This is a very educational video and the concerns shared resonate with residents.
HIGH
EMF
LEVELS
CAREE
CONCERNING
High Voltage Power Lines - How Close is
TOO CLOSE?
We urge you all to please keep in mind the interest and concerns of the residents while making a decision.
Thanks for your time and help
Regards
Preetika ( and residents from Santa Clara)
POST MEETING MATERIAL