B-2017-0961 CITY OF CUPERTINO BUILDING PERMIT
BUILDING ADDRESS: CONTRACTOR: PERMIT NO:B-2017-0961
10110 CALIFORNIA OAK WAY CUPERTINO,CA 95014(342 12 030) SLC INC
871 COTTING CT#1
VACAVILLE CA 95688
OWNER'S NAME:PACIFIC GAS AND ELECTRIC CO DATE ISSUED:07/25/2018
OWNER'S PHONE: PHONE NO:
LICENSED DECLARATION- BUILDING PERMIT INFO:
License Class�/B Lic.#04504
Contractor SLC INC Date 11-30-2019. X BLDG ELECT_PLUMB
I hereby affirm that I am licensed under the provisions of Chapter 9(commencing —MECH_RESIDENTIAL X COMMERCIAL
with Section 7000)of Division 3 of the Business&Profession Code and that my
license is in full force and effect. JOB DESCRIPTION:
SPRINT-INSTALL 2 ANTENNAS AT(E)TOWER;RELOCATE 2 RRUS
I hereby affirm under penalty of perjury one of the following two declarations: BEHIND(E)MOUNTS;INSTALL 2 2400 RRUS;ADD(N) HYBRID
I. I have and will maintain a certificate of consent to self-insure for Worker's CABLES;INSTALL 2.5 COMPONENTS IN(E)CABINETS
issued. Sq.Ft Floor Area: Valuation:$25000.00
APPLICANT CERTIFICATION
I certify that I have read this application and state that the above
information is correct.I agree to comply with all city and county ordlnances APN Number: Occupancy Type:
and state laws relating to building construction,and hereby authorize 342 12 030 A(Tenant Improvements)
representatives of this city to enter upon the above mentioned property for
inspection purposes. (We)agree to save indemnify and keep harmless the
City of Cupertino against liabilities,judgments,costs,and expenses which PERMIT EXPIRES IF WORT{IS NOT STARTED
may accrue against said City In consequence of the granting of this permit. WITHIN 180 DAYS OF PERMIT ISSUANCE OR
Additionally,the appllcant understands and will comply with all non-point
source regulations per
the Cupertino Municipal Code,Section 9.18. 180 DAYS FROM LAST CALLED INSPECTION.
Signature �(._-�`�--- _Date 7-25-2018 - Issued by:Kim Dunbar
Data:07/25/2018
OWNER-
I hereby affirm that I am exempt from the Contractor's License Law for one of the RL-
following two reasons: All roofs shall be inspected prior to any routing material being installed If e roof is
1. 1,as owner of the property,or my employee with wages as their sole iustallcd without first obtaining an inspection,I agree to remove all new materials for
compensation,will do the work,and the structure is net intended or offered for impeetio a.
sale(Sec.7044,Business&Professions Code)
z. i,as owner of the property,am exclusively contracting with licensed Signature of Applicant
contractors to construct the project(Sec.7044,Business&Professions Code). Date:7-25-2018
I hereby affirm under penalty or perjury one of the following three declarations: ALL ROOF COVERINGS TO BE CLASS"A"OR BETTER
r. I have and Will maintain a Certificate of Consent to self-insure for Worker's
Compensation,as provided for by Section 3700 of the Labor Code,for the
performance of die work for which this permit is issued. HAZARDOUS MATERIALS DISCLOSURE
z. I have and will maintain Worker's Compensation Insurance,as provided for by I have read the hazardous materials requirements under Chapter 6.95 of the
Section 3700 of the Labor Code,for the performance of the work for which this California Health&Safety Code,Neatens 25505,25533,and 25534.1 will
permit is issuedni aintain compliance with the Cupertino Municipal Cade,Chapter 9.12 and the
s. I certify that in the performance of of the work for which this permit is issued,I Health&Safety Code,Section 25532(a)should 1 store or handle hazardous
shall not employ any person in any manner so as to become subject to the material.Additionally,should I use equipment or devices which endt hazardous
air contaminants as defined by the Bay Area Ah-Quality Management District I
Worker's Compensation laws of California,If,atter making this certificate of will maintain compliance with the Cupertino Municipal Cade,Chapter 9.12 and
exemption,I become subject to the Worker's Compensation provisions of the the health&Safety Code,Sections 25505,25533,and 25534.
Labor Cade,1 must forthwith comply with such provisions or pits permit shall
be deemed revoked. Owner or authorized agent:
correct.I agree to comply with all city and county ordinances and state laws I hereby affirm that there is a construction lending agency for the performance
relating to building construction,and hereby authorize representatives of this city Of work's for which this permit is issued(Sec.3097,Civ C,)
to enter upon the above mentioned property for inspection purposes. (We)agree Lender's Name
to save indemnify and keep harmless the City of Cupertino against liabilities,
Judgments,costs,and expenses which may accrue against said City in Lender's Address
consequence of the granting of this permit.Additionally,the applicant understands
and will comply with all non-point source regulations per the Cupertino Municipal C I 'S DEILARATION
Code,Section 9.18. 1 understand my plans shall be used as pu Iic records.
Signature Data 7-25-2018 Licensed
Professional
Radio Frequency – Electromagnetic Energy
(RF-EME) Compliance Report
Site No. SF33XC554
Upper Monte Vista Substation
10110 California Oak Way
Cupertino, California 95014
Santa Clara County
37.324990; -122.070514 NAD83
Transmission Tower
EBI Project No. 6218000238
January 16, 2018
Prepared for:
Sprint Nextel
c/o Blue Stream
3305 HWY 60 W.
Faribault, Minnesota 5502
Prepared by:
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
EXECUTIVE SUMMARY
Purpose of Report
EnviroBusiness Inc. (dba EBI Consulting) has been contracted by Sprint to conduct radio frequency
electromagnetic (RF-EME) modeling for Sprint Site SF33XC554 located at 10110 California Oak Way in
Cupertino, California to determine RF-EME exposure levels from existing and proposed Sprint wireless
communications equipment at this site. As described in greater detail in Appendix B of this report, the
Federal Communications Commission (FCC) has developed Maximum Permissible Exposure (MPE)
Limits for general public exposures and occupational exposures. This report summarizes the results of
RF-EME modeling in relation to relevant FCC RF-EME compliance standards for limiting human exposure
to RF-EME fields.
This report contains a detailed summary of the RF EME analysis for the site.
This document addresses the compliance of Sprint’s proposed transmitting facilities independently and in
relation to all existing collocated facilities at the site.
Modeling results included in this report are based on drawings dated November 7, 2017 as provided to
EBI Consulting. Subsequent changes to the drawings or site design may yield changes in the MPE levels
or FCC Compliance recommendations.
Maximum Permissible Exposure (MPE) Summary
Location
% of FCC General
Public/Uncontrolled
Exposure Limit
% of FCC
Occupational/Controlled
Exposure Limit
Power Density
(mW/cm2)
All Carrier Equipment
Ground 31.60 6.32 0.16853
Sprint Equipment
Ground 30.50 6.10 0.16267
Statement of Compliance
Based on worst-case predictive modeling, there are no modeled exposures on any accessible ground-
level walking/working surface related to Sprint’s existing and proposed equipment in the area that
exceed the FCC’s occupational and/or general public exposure limits at this site. As such, the existing
and proposed Sprint project is in compliance with FCC rules and regulations.
Signage is recommended at the site as presented in Section 9.0 and Appendix A. Posting of the signage
brings the site into compliance with FCC rules and regulations.
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
1.0 LOCATION OF ALL EXISTING ANTENNAS AND FACILITIES AND EXISTING RF LEVELS
Sprint proposes the addition of two (2) wireless telecommunication antennas on a transmission tower in
Cupertino, California. The proposed modification will result in a total of four (4) Sprint antennas at the
site. There are two (2) sectors proposed at the site, with two (2) proposed antennas per sector.
Based on drawings and aerial photography review, unknown carrier wireless antennas are also present
on the transmission tower. These antennas were included in the modeling analysis.
2.0 LOCATION OR ALL APPROVED (BUT NOT INSTALLED) ANTENNAS AND FACILITIES AND
EXPECTED RF LEVELS FROM THE APPROVED FACILITIES
There are no antennas or facilities that are approved and not installed based on information provided to
EBI and Sprint at the time of this report.
3.0 NUMBER AND TYPES OF WIRELESS TELECOMMUNICATION SITES (WTS) WITHIN 100
FEET OF THE EXISTING AND PROPOSED SITE
There are no other Wireless Telecommunication Service (WTS) sites observed within 100 feet of the
proposed site.
4.0 LOCATION AND NUMBER OF THE SPRINT ANTENNAS AND BACK-UP FACILITIES PER
STRUCTURE AND NUMBER AND LOCATION OF OTHER TELECOMMUNICATION
FACILITIES ON THE PROPERTY
Sprint proposes the addition of two (2) wireless telecommunication antennas on a transmission tower in
Cupertino, California. The proposed modification will result in a total of four (4) Sprint antennas at the
site. There are two (2) sectors proposed at the site, with two (2) proposed antennas per sector. In
each sector, there is proposed to be one antenna transmitting in the 800 and 1900 MHz frequency
ranges and one antenna transmitting in the 2500 MHz frequency range. The Sector A antennas will be
oriented 30° from true north. The Sector B antennas will be oriented 165° from true north. The
bottoms of the Sector A and B antennas will be 22 and 21.18 feet above ground level.
Based on drawings and aerial photography review, unknown carrier wireless antennas are also present
on the transmission tower. These antennas were included in the modeling analysis.
5.0 POWER RATING FOR ALL EXISTING AND PROPOSED BACKUP EQUIPMENT SUBJECT TO
THE APPLICATION
The operating power of each frequency, for modeling purposes, was assumed to be the following:
Sprint Operating Powers Per Sector
Frequency (MHz) Power (Watts) # of Transmitters
Sprint 800 50 2
Sprint 1900 45 4
Sprint 2500 20 8
Additional transmitter information used in the modeling of Sprint antennas is summarized in the
RoofView® export file presented in Appendix D.
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
6.0 TOTAL NUMBER OF WATTS PER INSTALLATION AND THE TOTAL NUMBER OF WATTS
FOR ALL INSTALLATIONS ON THE STRUCTURE
The Effective Radiated Power (ERP) for each carrier and frequency is summarized below:
Effective Radiated Power (ERP) per Frequency
Frequency (MHz) ERP (Watts)
Sprint 800 2,218
Sprint 1900 10,264
Sprint 2500 9,250
Other Carriers (Total)* 6,360
* Other carrier ERPs were not provided. The ERP calculation is based on worst-case
assumptions of other carrier operating powers.
7.0 PREFERRED METHOD OF ATTACHMENT OF PROPOSED ANTENNA WITH PLOT OR ROOF
PLAN INCLUDING: DIRECTIONALITY OF ANTENNAS, HEIGHT OF ANTENNAS ABOVE
NEAREST WALKING SURFACE, DISCUSS NEARBY INHABITED BUILDINGS
Based on the information provided to EBI, the proposed antennas are to be rack-mounted on the tower
and operating in the directions, frequencies, and heights mentioned in section 4.0 above. The
surrounding area is mostly residential with a power substation adjacent to the west.
8.0 ESTIMATED AMBIENT RADIO FREQUENCY FIELDS FOR THE EXISTING AND PROPOSED
SITE
Based on worst-case predictive modeling, there are no modeled exposures on any accessible ground-
level walking/working surface related to Sprint’s existing and proposed equipment in the area that
exceed the FCC’s occupational and/or general public exposure limits at this site. As such, the existing
and proposed Sprint project is in compliance with FCC rules and regulations.
Maximum Permissible Exposure (MPE) Summary
Location
% of FCC General
Public/Uncontrolled
Exposure Limit
% of FCC
Occupational/Controlled
Exposure Limit
Power Density
(mW/cm2)
All Carrier Equipment
Ground 31.60 6.32 0.16853
Sprint Equipment
Ground 30.50 6.10 0.16267
The inputs used in the modeling are summarized in the RoofView® export file presented in Appendix D.
There are no modeled areas on the ground that exceed the FCC’s limits for general public or
occupational exposure in front of the other carrier antennas.
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
9.0 SIGNAGE AT THE FACILITY IDENTIFYING ALL WTS EQUIPMENT AND SAFETY
PRECAUTIONS FOR PEOPLE NEARING THE EQUIPMENT AS MAY BE REQUIRED BY THE
APPLICABLE FCC ADOPTED STANDARDS (DISCUSS SIGNAGE FOR THOSE WHO SPEAK
LANGUAGES OTHER THAN ENGLISH)
Signs are the primary means for control of access to areas where RF exposure levels may potentially
exceed the MPE. It is recommended that Notice signs be installed for the new antennas making people
aware of the antennas locations. There are no exposures above the FCC limits in front of the existing
and proposed antennas and therefore barriers are not recommended.
Workers that are elevated above the ground may be exposed to power densities greater than the
occupational limit. Workers should be informed about the presence of antennas and their associated
fields and practice RF Safety Procedures. To reduce the risk of exposure and/or injury, EBI recommends
that access to the transmission tower or areas associated with the active antenna installation be
restricted and secured where possible.
10.0 STATEMENT ON WHO PRODUCED THIS REPORT AND QUALIFICATIONS
Please see the certifications attached in Appendix C below.
11.0 LIMITATIONS
This report was prepared for the use of Sprint. It was performed in accordance with generally accepted
practices of other consultants undertaking similar studies at the same time and in the same locale under
like circumstances. The conclusions provided by EBI are based solely on the information provided by the
client. The observations in this report are valid on the date of the investigation. Any additional
information that becomes available concerning the site should be provided to EBI so that our
conclusions may be revised and modified, if necessary. This report has been prepared in accordance
with Standard Conditions for Engagement and authorized proposal, both of which are integral parts of
this report. No other warranty, expressed or implied, is made.
12.0 SUMMARY AND CONCLUSIONS
EBI has prepared this Radiofrequency Emissions Compliance Report for the existing and proposed Sprint
telecommunications equipment at the site located at 10110 California Oak Way in Cupertino, California.
EBI has conducted theoretical modeling to estimate the worst-case power density from existing and
proposed Sprint antennas and the other carriers’ existing antennas to document potential MPE levels at
this location and ensure that site control measures are adequate to meet FCC and OSHA requirements.
As presented in the preceding sections, based on worst-case predictive modeling, there are no modeled
exposures on any accessible ground-level walking/working surface related to Sprint’s existing and
proposed equipment in the area that exceed the FCC’s occupational and/or general public exposure
limits at this site. As such, the existing and proposed Sprint project is in compliance with FCC rules and
regulations.
Signage is recommended at the site as presented in Section 9.0 and Appendix A. Posting of the signage
brings the site into compliance with FCC rules and regulations.
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
Appendix A
MPE Analysis and Recommended Signage
Sprint Antennas Sprint Sector B *For Clarity, Other Carrier Antennas are Not Shown. Exact locations also not know MPE Analysis and Recommended Signage Facility Operator: Sprint Site Name: Upper Monte Vista Substation Sprint Site Number: SF33XC554 Report Date: January 16, 2018 Post Signs at All Tower Access Points Sprint Sector A
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
Appendix B
Federal Communications
Commission (FCC) Requirements
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
The FCC has established Maximum Permissible Exposure (MPE) limits for human exposure to
Radiofrequency Electromagnetic (RF-EME) energy fields, based on exposure limits recommended by the
National Council on Radiation Protection and Measurements (NCRP) and, over a wide range of
frequencies, the exposure limits developed by the Institute of Electrical and Electronics Engineers, Inc.
(IEEE) and adopted by the American National Standards Institute (ANSI) to replace the 1982 ANSI
guidelines. Limits for localized absorption are based on recommendations of both ANSI/IEEE and NCRP.
The FCC guidelines incorporate two separate tiers of exposure limits that are based upon
occupational/controlled exposure limits (for workers) and general public/uncontrolled exposure limits
for members of the general public.
Occupational/controlled exposure limits apply to situations in which persons are exposed as a
consequence of their employment and in which those persons who are exposed have been made fully
aware of the potential for exposure and can exercise control over their exposure. Occupational/
controlled exposure limits also apply where exposure is of a transient nature as a result of incidental
passage through a location where exposure levels may be above general public/uncontrolled limits (see
below), as long as the exposed person has been made fully aware of the potential for exposure and can
exercise control over his or her exposure by leaving the area or by some other appropriate means.
General public/uncontrolled exposure limits apply to situations in which the general public may be
exposed or in which persons who are exposed as a consequence of their employment may not be made
fully aware of the potential for exposure or cannot exercise control over their exposure. Therefore,
members of the general public would always be considered under this category when exposure is not
employment-related, for example, in the case of a telecommunications tower that exposes persons in a
nearby residential area.
Table 1 and Figure 1 (below), which are included within the FCC’s OET Bulletin 65, summarize the MPE
limits for RF emissions. These limits are designed to provide a substantial margin of safety. They vary by
frequency to take into account the different types of equipment that may be in operation at a particular
facility and are “time-averaged” limits to reflect different durations resulting from controlled and
uncontrolled exposures.
The FCC’s MPEs are measured in terms of power (mW) over a unit surface area (cm2). Known as the
power density, the FCC has established an occupational MPE of 5 milliwatts per square centimeter
(mW/cm2) and an uncontrolled MPE of 1 mW/cm2 for equipment operating in the 1900 MHz and 2500
MHz frequency ranges. For the Sprint equipment operating at 800 MHz, the FCC’s occupational MPE is
2.66 mW/cm2 and an uncontrolled MPE of 0.53 mW/cm2. These limits are considered protective of
these populations.
Table 1: Limits for Maximum Permissible Exposure (MPE)
(A) Limits for Occupational/Controlled Exposure
Frequency Range
(MHz)
Electric Field
Strength (E)
(V/m)
Magnetic Field
Strength (H)
(A/m)
Power Density (S)
(mW/cm2)
Averaging Time
[E]2, [H]2, or S
(minutes)
0.3-3.0 614 1.63 (100)* 6
3.0-30 1842/f 4.89/f (900/f2)* 6
30-300 61.4 0.163 1.0 6
300-I,500 -- -- f/300 6
1,500-100,000 -- -- 5 6
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
(B) Limits for General Public/Uncontrolled Exposure
Frequency Range
(MHz)
Electric Field
Strength (E)
(V/m)
Magnetic Field
Strength (H)
(A/m)
Power Density (S)
(mW/cm2)
Averaging Time
[E]2, [H]2, or S
(minutes)
0.3-1.34 614 1.63 (100)* 30
1.34-30 824/f 2.19/f (180/f2)* 30
30-300 27.5 0.073 0.2 30
300-I,500 -- -- f/1,500 30
1,500-100,000 -- -- 1.0 30
f = Frequency in (MHz)
* Plane-wave equivalent power density
Based on the above, the most restrictive thresholds for exposures of unlimited duration to RF energy
for several personal wireless services are summarized below:
Personal Wireless Service Approximate
Frequency
Occupational
MPE Public MPE
Personal Communication Services (PCS) 1,950 MHz 5.00 mW/cm2 1.00 mW/cm2
Cellular Telephone 870 MHz 2.90 mW/cm2 0.58 mW/cm2
Specialized Mobile Radio 855 MHz 2.85 mW/cm2 0.57 mW/cm2
Most Restrictive Freq, Range 30-300 MHz 1.00 mW/cm2 0.20 mW/cm2
MPE limits are designed to provide a substantial margin of safety. These limits apply for continuous
exposures and are intended to provide a prudent margin of safety for all persons, regardless of age,
gender, size, or health.
Personal Communication Services (PCS) facilities used by Sprint in this area operate within a frequency
range of 800-1900 MHz. Facilities typically consist of: 1) electronic transceivers (the radios or cabinets)
connected to wired telephone lines; and 2) antennas that send the wireless signals created by the
transceivers to be received by individual subscriber units (PCS telephones). Transceivers are typically
connected to antennas by coaxial cables. Power Density (mW/cm2)
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
Advanced Wireless Services (AWS) facilities used by Sprint in this area operate within a frequency range
of 2496 - 2690 MHz. Facilities typically consist of: 1) electronic transceivers (the radios or cabinets); and
2) antennas that send the wireless signals created by the transceivers to be received by individual
subscriber units. Transceivers are typically connected to antennas by coaxial cables.
Because of the short wavelength of PCS/AWS services, the antennas require line-of-site paths for good
propagation, and are typically installed above ground level. Antennas are constructed to concentrate
energy towards the horizon, with as little energy as possible scattered towards the ground or the sky.
This design, combined with the low power of PCS facilities, generally results in no possibility for
exposure to approach Maximum Permissible Exposure (MPE) levels, with the exception of areas directly
in front of the antennas.
FCC Compliance Requirement
A site is considered out of compliance with FCC regulations if there are areas that exceed the FCC
exposure limits and there are no RF hazard mitigation measures in place. Any carrier which has an
installation that contributes more than 5% of the applicable MPE must participate in mitigating these RF
hazards.
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
Appendix C
Certifications
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
Preparer Certification
I, Ryan Eaton, state that:
I am an employee of EnviroBusiness Inc. (d/b/a EBI Consulting), which provides RF-EME safety
and compliance services to the wireless communications industry.
I have successfully completed RF-EME safety training, and I am aware of the potential hazards
from RF-EME and would be classified “occupational” under the FCC regulations.
I am fully aware of and familiar with the Rules and Regulations of both the Federal
Communications Commissions (FCC) and the Occupational Safety and Health Administration
(OSHA) with regard to Human Exposure to Radio Frequency Radiation.
I have been trained on RF-EME modeling using RoofView® modeling software.
I have reviewed the data provided by the client and incorporated it into this Site Compliance
Report such that the information contained in this report is true and accurate to the best of my
knowledge.
RF-EME Compliance Report Site No. SF33XC554
EBI Project No. 6218000238 10110 California Oak Way, Cupertino, California
EBI Consulting 21 B Street Burlington, MA 01803 1.800.786.2346
Appendix D
Roofview® Export File / Antenna Inventory