HomeMy WebLinkAbout4.2TOWN OF LOS ALTOS HILLS
Staff Report to the Planning Commission
July 7, 2011
Item 4.2
SUBJECT: CONDITIONAL USE PERMIT RENEWAL FOR AN EXISTING/
PREVIOUSLY APPROVED WIRELESS COMMUNICATIONS FACILITY.
THE FACILITY CONSISTS OF FOUR (4) OMNI ANTENNAS. AND
ASSOCIATED GROUND EQUPIMENT. LANDS OF CALIFORNIA
DEPARTMENT OF TRANSPORTATION (APPLICANT: AT&T); 2350 PAGE
MILL ROAD; FILE # 280 -10 -CUP
FROM: Nicole Horvitz, Assistant Planner FkG
APPROVED: Debbie Pedro; AICP, Planning Director -,Q
RECOMMENDATION:. That the Planning Commission:
Forward a recommendation to the City Council that the Conditional Use Permit be extended for
ten (10) years, subject to the amended Conditions of Approval in Attachment 1.
BACKGROUND
The existing monopole has five (5) wireless service providers co -located on the monopole owned
by Crown Castle. On ' February 5, 1997 the City Council approved the installation of three
wireless communications facilities: Pacific Bell Mobile Services (now T -Mobile), Cellular One
(now AT&T), and Sprint Spectrum (now Sprint PCS) on a 55' tall monopole located at the
Caltrans maintenance yard located at 2350 Page Mill Road. GTE Mobile Communications (now
Verizon Wireless) was approved to 'co -locate on the monopole on October 21, 1998 and Metro
PCS was approved on January 10, 2002 respectively.
On December 27, 2010 AT&T submitted an application for renewal of the existing Conditional
Use Permit (Attachment 2).
DISCUSSION
The existing wireless communications facility consists of a 55' tall monopole at the south end of
the Caltrans property. Four (4) AT&T omni antennas are located on the top of the pole (at 55'
from grade) and are approximately 6' in height.
The applicant is not requesting any modifications to the existing antennas or equipment with this
application.
Pursuant to Government Code Section 65964 (b) the duration of time for any permit renewal for
a wireless telecommunications facility shall be a minimum of 10 years. Staff has amended
condition of approval # 2 in Attachment 1 to comply with State Law.
Staff Report to the Planning Commission
Lands of Cal Trans
2350 Page Mill Road
July 7, 2011
Page 2 of 4
Wireless Communications Facilities Policy
The facility is consistent with the Town's Wireless Communications Facilities Policy. This is a
non-residential site, a co -location project, visual impacts are minimized by the recent painting of
the monopole and equipment, and mature landscape helps shield the view of facility from
residential properties in the vicinity of the site.
CONCLUSION
The facility is operating in compliance with conditions of the approved Conditional Use Permit
and the Wireless Communications Facilities Policy. The applicant has submitted a radio
frequency (RF) emissions report demonstrating that the facility will operate within federal RF
emissions standards and guidelines (Attachment 3).
Extension of the Use Permit will allow continued operation of the facility for an additional ten
(10) years at which time subsequent Planning Commission/City Council review will be required.
CEQA STATUS
The proposed application is exempt from California Environmental Quality Act (CEQA)
pursuant to Section 15301(a) of the CEQA Guidelines.
ATTACHMENTS
1. Original Conditions of Approval (February 5, 1997) with amended condition # 2
2. Applicant's statement requesting permit renewal
3. Radio frequency emissions report by EBI Consulting dated May 17, 2011
4. Photo Simulations
5. Wireless Communications Facilities Policy
6. Site Development Plans
ATTACHMENT 1
CONDITIONS OF APPROVAL FOR A CONDITIONAL USE
PERMIT RENEWALFOR A WIRELESS COMMUNICATIONS FACILITY
LANDS OF CALIFORNIA DEPARTMENT OF TRANSPORTATION
(APPLICANT: AT&T) 2350 PAGE MILL ROAD
PLANNING DEPARTMENT:
1. Any changes or revisions to the telecommunications facility or its use shall require an
amendment to the applicable conditional use permit(s). Additionally, the Planning
Director may schedule a review or revocation hearing before the Planning Commission
regarding the use permit, if any condition of approval is not being met or the facility is
being used inconsistent with the approved use or in violation of Town development
codes.
2. The use permit shall expire t1 3) ten (10) years from the date of approval. Renewal
of the permit must be requested in writing, with appropriate fees, prior to the expiration
date.
3. The monopole shall be painted to the satisfaction to the satisfaction of the Planning
Director, prior to final inspection of the facility. The equipment units/shelters shall be
painted a color, to be determined by the Planning Department, to blend with the
surrounding environment, prior to final inspection of the facility. The Planning Director
shall consult with the Planning Commission regarding the color selection prior to final
inspection of the facility. Completed
4. Landscape screening of the equipment cabinet may be required by the Planning
Department upon final inspection if determined to be necessary. Completed
5. The applicant shall submit a signed agreement to the Town, agreeing that, should the use
be discontinued by the carrier, all facilities will be removed not later then 90 days after
discontinuance of the use or abandonment. The agreement shall be signed by the
applicant and submitted to the Town prior to acceptance of plans for building plan check.
6. Not later then 30 days after installation and initial operation of the antenna facility, and
on or prior to January 1St of each year thereafter, testing of radio frequency emissions
shall be conduced by qualified professionals and the reports of such testing shall be
provided in writing to the Planning Department, with comparison of applicable Federal
emissions standards. If at any time the emission levels are shown not to comply with
Federal standards, the use permit shall be scheduled for a revocation hearing before the
Planning Commission.
ENGINEERING DEPARTMENT:
7. Any, and all, changes to the proposed Site Plan shall first be approved by the Town
Engineering Department.
8. Any, and all, areas on the project site that have the native material disturbed shall be
protected for erosion control during the rainy season and shall be replanted prior to final
inspection.
CONDITION NUMBER 5 SHALL BE COMPLETED AND SIGNED OFF BY THE
PLANNING DEPARTMENT AND THE ENGINEERING DEPARTMENT PRIOR TO
ACCEPTANCE OF CONSTRUCTION PLANS FOR PLAN CHECK BY THE BUILDING
DEPARTMENT.
Upon completion of the construction, a final inspection shall be required to be set with the
Planning and Engineering Departments two weeks prior to final building inspection approval.
AUT
AT&T Wireless Services
December 21, 2010
Nature of Request
PROJECT DESCRIPTION
CN3343 Page Mill 280
2350 Page Mill Road, Los Altos Hills
Attachment 2
Osborne & Associates, Inc.
755 Baywood Drive, suite 350 AT&T Mobility seeks renewal of a Conditional Use Permit to allow the
Petaluma, CA 94954 continued operation and maintenance of a wireless telecommunications
T 415-559-2121 p
F 415-358-5766 facility. No modifications are to: be made at this time.
jasoiLosbome@sbeglobal.net
sbcglobal.net'
Property Description
The site -is located on a Department of Transportation right-of-way north-
east of Interstate 280 northerly of Old Page Mill Road, APN 182-31-054.
Project Description
The facility is a 55' monopole on the top of which AT&T has four omni
antennas. There are four lower levels of antennas operated by other carri-
ers. Operating equipment is fully enclosed in a ground -level cabinet shel-
ter. We are not proposing to make any additions or modifications to the
antennas or equipment cabinets -at this time.
Statement of Operations
The existing AT&T communication facility only requires electrical ser-
vices and telephone services which are readily available at the site. No
nuisances have been generated by the continued operation of this facility,
nor has the facility injured the public health, safety, morals or general wel-
fare of the.community. AT&T technology does not interfere with any oth-
er forms of communication devices whether public or private. The opera-
tion of this facility provides wireless communications for AT&T custom-
ers residing near or visiting the site, as well as local area residents and
motorists traveling through the area, providing seamless service to numer-
ous customers.
The site is entirely self -monitored and connects directly to a central office
where sophisticated computers alert personnel to any equipment malfunc-
tion or breach of security.
Osborne & Associates, Inc.
Because the AT&T facility is unstaffed, there are no regular hours of op-
eration and no impact to existing traffic patterns. No on-site water or sani-
tation services are required.
Zoning Analysis
The site was previously approved for telecommunications use. As we are
755 Baywood Drive, Suite 350 not proposing to make changes to the facility or its operation, there will be
Petaluma, CA 94954 no change in the land use. The continued operation will be in compliance
T 415-559-2121
F 415-358-5766 with established zoning ordinances.
jason osbome@sbcglobal.net
Compliance with FCC regulations
AT&T will continue to comply with all FCC rules governing technical
standards, interference protection, power and height limitations, and radio
frequency standards.
Radio Frequency — Electromagnetic Energy (RF-EME)
Compliance Report
REVISION
Prepared for:
AT&T Mobility, LLC
4430 Rosewood Drive
Bldg.3, 6th Floor
Pleasanton,CA 94588
RECEIVED
Attachment 3
JUN 2011 USID# 13291
Site No. CN3343
TOWN OF LOS ALTOS HILLS Page Mill - 280
2350 Page Mill Road
Los Altos, California 94022
Palo Alto County
37.390000; -121.851000 NAD83
Site Type: monopole
EBI Project No. 621 10297
May 17, 2011
#A T
C O N S U L T I N G
Creating Value for Your Business
RF-EME Compliance Report
EBI Project No. 621 10297
TABLE OF CONTENTS
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
EXECUTIVESUMMARY.....................................................................................................................
.0 SITE DESCRIPTION................................................................................................................ 3
2.0 FEDERAL COMMUNICATIONS COMMISSION (FCC) REQUIREMENTS ................................... 3
3.0 AT&T RF EXPOSURE POLICY REQUIREMENTS.................................................................... 5
4.0 WORST-CASE PREDICTIVE MODELING................................................................................. 5
5.0 RECOMMENDED SIGNAGE/COMPLIANCE PLAN.................................................................... 7
6.0 SUMMARY AND CONCLUSIONS............................................................................................. 8
7.0 LIMITATIONS.........................................................................................................................8
APPENDICES
Appendix A
Personnel Certifications
Appendix B
Antenna Inventory
Appendix C
RoofView® Export File
Appendix D
RoofView® Graphic
Appendix E
Compliance/Signage Plan
Appendix F
Local Regulations
"EBI 21 B Street • Burlington, MA 01803 * 1.800.786.2346
RF-EME Compliance Report
EBI Project No. 621 10297
EXECUTIVE SUMMARY
Purpose of Report
USID No. 1329VSite No. CN3343
2350 Page Mill Road, Los Altos, California
EnviroBusiness Inc. (dba EBI Consulting) has been contracted by AT&T Mobility, LLC to conduct radio
frequency electromagnetic (RF-EME) modeling for AT&T Site CN3343 located at 2350 Page Mill Road
in Los Altos, California to determine RF-EME exposure levels from existing AT&T wireless
communications equipment at this site. As described in greater detail in Section 2.0 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, including the following:
■ Antenna Inventory
■ Site Plan with antenna locations
■ Antenna inventory with relevant parameters for theoretical modeling
■ Graphical representation of theoretical MPE fields based on modeling
■ Graphical representation of recommended signage and/or barriers
This document addresses the compliance of AT&T's transmitting facilities independently and in relation
to all collocated facilities at the site.
Statement of Compliance
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.
As presented in the sections below, based on worst-case predictive modeling, there are no modeled
areas on any accessible ground -level walking/working surface related to the existing antennas that
exceed the FCC's occupational or general public exposure limits at this site.
AT&T Recommended Signage/Compliance Plan
AT&T's RF Exposure Policy guidance, dated March 31, 2009, requires that:
1. All sites must be analyzed for RF exposure compliance;
2. All sites must have that analysis documented; and
3. All sites must have any necessary signage and barriers installed.
Site compliance recommendations have been developed based upon protocols presented in AT&T's RF
Exposure Policy guidance document, dated March 31, 2009, additional guidance provided by AT&T,
EBI's understanding of FCC and OSHA requirements, and common industry practice. Barrier locations
have been identified (when required) based on guidance presented in AT&T's RF Exposure Policy
guidance document, dated March 31, 2009. The following signage is recommended at this site:
■ Green INFO I sign posted at the access gate.
■ Yellow CAUTION sign posted at the base of the monopole.
UEBT 21 B Street s Burlington, MA 01803 • 1.800.786.2346 I
RF-EME Compliance Report
EBI Project No. 621 10297
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
The signage recommended at this site complies with AT&T's RF Exposure Policy and therefore complies
with FCC and OSHA requirements. Barriers are not recommended on this site. More detailed
information concerning site compliance recommendations is presented in Section 5.0 and Appendix E of
this report.
II EBI 21 B Street • Burlington, MA 01803 a 1.800.786.2346 2
RF-EME Compliance Report
EBI Project No. 621 10297
1.0 SITE DESCRIPTION
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
This project involves the existing installation of up to four (4) AT&T wireless telecommunication
antennas on a monopole in Los Altos, California. The current plans for the site include four (4) AT&T
antennas on site. On site there are two omni antennas that are assumed to be transmitting in the UMTS
1900 and GSM 1900 frequencies. The remaining two omni antennas are assumed to be transmitting in
the GSM 850 and UMTS 850 frequencies. The bottoms of the antennas are 56 feet above ground level.
Appendix B presents an antenna inventory for the site.
Access to this site is accomplished via a gate in the fence surrounding the monopole. Workers must be
elevated to antenna level to access them, so these antennas are not accessible to the general public.
2.0 FEDERAL COMMUNICATIONS COMMISSION (FCC) REQUIREMENTS
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 I and Figure I (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 I mW/cm2 for equipment operating in the 1900 MHz frequency
.r. EBI 21 B Street • Burlington, MA 01803 ♦ 1.800.786.2346 3
RF-EME Compliance Report USID No. 13291 Site No. CN3343
EBI Project No. 621 10297 2350 Page Mill Road, Los Altos, California
range, For the AT&T equipment operating at 850 MHz, the FCC's occupational MPE is 2.83 mW/cm2
and an uncontrolled MPE of 0.57 mW/cm2. For the AT&T equipment operating at 700 MHz, the FCC's
occupational MPE is 2.33 mW/cm2 and an uncontrolled MPE of 0.47 mW/cm2. These limits are
considered protective of these populations.
_ Table I Limits fo"r Maximum Permissible Exposure (MPE)
(A) Limits for Occupational/Controlled Exposure
Frequency Range Electric Field , Magnetic Field .
(MHz) Strength (E) Strength (H)
_... (_V/m) ;i`; ... (gym)
Power Density. (S)
- Z
_mV1//cm)
Averaging Time '
[E]Z, [H]Z, or S
`(minutes) .
0.3-3.0
614 1.63
(100)*
6
3.0-30
1842/f 4.89/f
(900/ )*
6
30-300
61.4 0.163
1.0
6
300-1,500
-- --
f/300
6
1,500-100,000
-- --
5
6
(B) Limits for General Public/Uncontrolled Exposure
Frequency Range
MHz
Electri FiIId '♦
:Streh9th E
/m) s
Magnetic Field
Strep h H
(A/m)
_ Averaging Time
Power Density (S); E? H
(mW/chi .
(minutes)
0.3-1.34
614
1.63
(100)*
30
1.34-30
824/f
2.19/f
(180/ )*
30
30-300
27.5
0.073
0.2
30
300-1,500
--
--
f/1,500
30
1,500-100,000
--
--
1.0
30
f = Frequency in (MHz)
Plane -wave equivalent power density
Fl- uq re 1. FCC Limits for Maximum Permissible Exposure (MPE)
Plane -wave Equivalent Power Density
vE
E
Occupational/Controlled Exposure
— General Population/Uncontrolled Exposurel
700 _
70 � -
5
7
0.1
0.03 0.3 � 3 30 300 j 3,000 30.000 -1300,
1_14 1,500 100,000
Frequency (MHz)
Based on the above, the most restrictive thresholds for exposures of unlimited duration to RF energy
for several personal wireless services are summarized below:
iz";AEBT 21 B Street 4 Burlington, MA 01803 • 1.800.786.2346 4
RF-EME Compliance Report USID No. 13291 Site No. CN3343
EBI Project No. 621 10297 2350 Page Mill Road, Los Altos, California
Personal Wireless: Serv1ce
::-
Approximate
Frequency
_ ,. .
Occupational
MPE
&"M PE
r ...... .......
Personal Communication (PCS)
1,950 MHz
5.00 mW/cm
1.00 mW/cm
Cellular Telephone
870 MHz
2.90 mW/cm 2
0.58 mW/cm
Specialized Mobile Radio
855 MHz
2.85 mW/cm 20.57
mW/cm
Most Restrictive Freq, Range
30-300 MHz
1.00 mW/cm
0.20 mW/cm
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 (PCS) facilities used by AT&T in this area operate within a frequency range of
700-1900 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.
Because of the short wavelength of PCS 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.
3.0 AT&T RF EXPOSURE POLICY REQUIREMENTS
AT&T's RF Exposure Policy guidance, dated March 31, 2009, requires that:
I. All sites must be analyzed for RF exposure compliance;
2. All sites must have that analysis documented; and
3. All sites must have any necessary signage and barriers installed.
Pursuant to this guidance, worst-case predictive modeling was performed for the site. This modeling is
described below in Section 4.0. Lastly, based on the modeling and survey data, EBI has produced a
Compliance Plan for this site that outlines the recommended signage and barriers. The recommended
Compliance Plan for this site is described in Section 5.0.
4.0 WORST-CASE PREDICTIVE MODELING
In accordance with AT&T's RF Exposure policy, EBI performed theoretical modeling using RoofView®
software to estimate the worst-case power density at the site ground -level resulting from operation of
the antennas. RoofView® is a widely -used predictive modeling program that has been developed by
Richard Tell Associates to predict both near field and far field RF power density values for roof -top and
tower telecommunications sites produced by vertical collinear antennas that are typically used in the
cellular, PCS, paging and other communications services. The models utilize several operational
specifications for different types of antennas to produce a plot of spatially -averaged power densities that
can be expressed as a percentage of the applicable exposure limit.
For this report, EBI utilized antenna and power data provided by AT&T, and compared the resultant
worst-case MPE levels to the FCC's occupational/controlled exposure limits outlined in OET Bulletin 65.
?a,ffiBI 21 B Street + Burlington, MA 01803 + 1.800.786.2346 5
RF-EME Compliance Report USID No. 13291 Site No. CN3343
EBI Project No. 621 10297 2350 Page Mill Road, Los Altos, California
The assumptions used in the modeling are based upon information provided by AT&T, and information
gathered from other sources. Sprint, Nextel, T -Mobile, Verizon and Metro PCS also have antennas on
the monopole. Information about these antennas was included in the modeling analysis.
Based on worst-case predictive modeling, there are no modeled areas on any accessible ground -level
walking/working surface related to the existing AT&T antennas that exceed the FCC's occupational or
general public exposure limits at this site. At the nearest walking/working surfaces to the AT&T
antennas, the maximum power density generated by the AT&T antennas is approximately 2.50 percent
of the FCC's general public limit (0.50 percent of the FCC's occupational limit). The composite
exposure level from all carriers on this site is approximately 12.70 percent of the FCC's general public
limit (2.54 percent of the FCC's occupational limit) at the nearest walking/working surface to each
antenna.
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.
The inputs used in the modeling are summarized in the RoofView® export file presented in Appendix C.
A graphical representation of the RoofView® modeling results is presented in Appendix D. It should be
noted that RoofView is not suitable for modeling microwave dish antennas; however, these units are
designed for point-to-point operations at the elevations of the installed equipment rather than ground
level coverage.
EBT 21 B Street • Burlington, MA 01803 4 1.800.786.2346 6
RF-EME Compliance Report USID No. 13291 Site No. CN3343
EBI Project No. 621 10297 2350 Page Mill Road, Los Altos, California
5.0 RECOMMENDED SIGNAGE/COMPLIANCE PLAN
Signs are the primary means for control of access to areas where RF exposure levels may potentially
exceed the MPE. As presented in the AT&T guidance document, the signs must:
■ Be posted at a conspicuous point;
■ Be posted at the appropriate locations;
■ Be readily visible; and
■ Make the reader aware of the potential risksrp for to entering the affected area.
The table below presents the signs that may be used for AT&T installations.
Informational Signs
�-�� �_._•d
INFO
A
NOTICE
INFO 2
�.� f •.+e+J N FfC
u.�u! iarw.
[+an
aw
INFO 3
INFO 4
Alerting Signs
A
NOTICE
�.� f •.+e+J N FfC
u.�u! iarw.
[+an
CAUTION
Ato
CAUTION
-
WARNING
RT Eruw..: rvf a• Fff
Based upon protocols presented in AT&T's RF Exposure Policy guidance document, dated March 31,
2009, and additional guidance provided by AT&T, the following signage is recommended on the site:
I EBI 21 B Street 4 Burlington, MA 01803 * 1.800.786.2346 7
RF-EME Compliance Report
EBI Project No. 621 10297
Recommended Signage:
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
■ Green INFO I sign posted at the access gate.
■ Yellow CAUTION sign posted at the base of the monopole.
No barriers are required for this site. Barriers may consist of rope, chain, or fencing. Painted stripes
should only be used as a last resort. The signage and any barriers are graphically represented in the
Signage Plan presented in Appendix E.
6.0 SUMMARY AND CONCLUSIONS
EBI has prepared this Radiofrequency Emissions Compliance Report for the existing AT&T
telecommunications equipment at the site located at 2350 Page Mill Road in Los Altos, California.
EBI has conducted theoretical modeling to estimate the worst-case power density from AT&T antennas
and other carriers' antennas to document potential MPE levels at this location and ensure that site
control measures are adequate to meet FCC and OSHA requirements, as well as AT&T's corporate RF
safety policies. 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 existing
equipment in the area that exceed the FCC's occupational and general public exposure limits at this site.
As such, the existing AT&T project is in compliance with FCC rules and regulations.
Signage is recommended at the site as presented in Section 5.0 and Appendix E. Posting of the signage
brings the site into compliance with FCC rules and regulations and AT&T's corporate RF safety policies.
7.0 LIMITATIONS
This report was prepared for the use of AT&T Mobility, LLC. 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.
U EBI 21 B Street • Burlington, MA 01803.1.800.786.2346 8
RF-EME Compliance Report
EBI Project No. 621 10297
Appendix A
Certifications
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
EBT 21 B Street 4 Burlington, MA 01803.1.800.786.2346
RF-EME Compliance Report
EBI Project No. 621 10297
J
USID No. 13291 Site No. CN3343
8950 Redwood Highway, Novato, California
Reviewed and Approved by:
Senior Engineer
Note that EBI's scope of work is limited to an evaluation of the 'Radio Frequency — Electromagnetic Energy: (RF-
EME) field generated by the antennas and broadcastequipment noted in this report The engineering and design
of the building and related structures, as well as the impact of the antennas and broadcast equipment on the
structural integrity of the building, are specifically excluded from FBI's scope of work.
EBI Consulting
RF-EME Compliance Report
EBI Project No. 621 10297
Preparer Certification
I, Stephanie Penta, state that:
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
■ 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 wouldbe classified "occupational" under the FCC regulations.
■ I am familiar with the FCC rules and regulations as well as OSHA regulations both in general and
as they apply to RF-EME exposure.
■ 1 have been trained in on the procedures outlined in AT&T's RF Exposure Policy guidance
(dated 3/31/09) and on RF-EME modeling using RoofView® modeling software.
■ 1 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.
av2lva,� At6�-�-
EBI 21 B Street o Burlington, MA 01803 • 1.800.786.2346
RF-EME Compliance Report
EBI Project No. 621 10297
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
Appendix B
Antenna Inventory
=:;DEBT 21 B Street • Burlington, MA 01803 • 1.800.786.2346
RF-EME Compliance Report USID No. 13291 Site No. CN3343
EBI Project, No. 621102.97. 2350 Page Mill Road, Los Altos, California
IEBI 21. 8 Street 0 - B.urlington, MAD 1803 4 1.800.786.2346.
W
TX
''Horizontal
Antenna,
req
"ERP
Gain-,
'Azimuth
Le'nith
Bednwijih
Number
01�eraiot--r -
Type
;(dBd
9.
UMTS
Generic 850
ATT AI
AT&T
OMNI
1900
74
4.85
OMNI /
Omni
2.06
360
29
29
56
DB91 OCN-m
Generic 850
ATTAI
AT&T
OMNI
GSM 1900
12.5
4.85
OMNI
Omni.
2.06
360
29
29
56
DB9 I OCN-m
Generic 850
ATT A2
AT&T
OMNI
GSM 850
111
2.85
OMNI /
Omni
2.06
360
24
37
56
DB9 I OCN-m
UMTS
Generic 850
ATT A2
AT&T
OMNI
850
47
2.85
OMNI /
Omni
2.06
360
24
37
56
DB9 I OCN-m
Generic 850
ATT A3
AT&T
OMNI
GSM 850
111
2.85
OMNI
Omni
2.06
360
29
43
56
DB9 I OCN-m
UMTS
Generic BSO
ATT A3
AT&T
OMNI
47
2.85
OMNI /
Omni
2.06
360
29
43
56
850
DB9 I OCN-m
UMTS
Generic 850
ATT A4
AT&T
OMNI
74
4.85
OMNI /
Omni
2.06
360
35
37
56
1900
D139 I OCN-m
'Generic 850
ATT A4
AT&T
OMNI
GSM 1900
125
4.85
OMNI /
Omni
2.06
360
35
37
56
DB9 I OCN-m
PCs AI
Metro PCs
Panel
850
242
12
Unknown
0
3.5
63
29
29
46.4
PCS, BI
Metro PCs
Panel
850
242
12
Unknown
0
3.5
63
29
29
38
PCs Cl
Metro PCs
Panel
.850
242
12-
Unknown -
120
3.5
63
.,24
40
'46A
VZN Al
Verizon
Panel
1900
243
16
Unknown
0
6
85
35
40
46.23
VZN BI
Verizon
Panel
1900
243
16
Unknown.
120
6
85
29
29
46.23
VZN Cl
Verizon
Panel
1900
243
16
Unknown
240
6
85
24
40
46.23
TMO Al
T -Mobile
Panel
850
242
12
Unknown
0
5
85
35
40
39.7
TMO A2
T -Mobile
Panel
850
242
12 1
Unknown
120
5
85
29
29
39.7
TMO BI
T -Mobile
Panel
850
242
12
Unknown
240
5
85
24
40
39.7
TMO B2
T -Mobile
Panel
1900
122
16
Unknown
0
5
65
35
40
32.53
TMO Cl
T -Mobile
Panel
1900
122
16
Unknown
0
5
65
37
33
32.53
TMO C2
T -Mobile
Panel
.1900
122
16
Unknown
120
5
65
29
29
32.53
SPTAI
Sprint
Panel
1900
.122
16
Unknown
120
5
65
26
29
32.53
SPT BI
Sprint
Panel
1900
122
16
Unknown
240
5
---65-
24
40
32.53
SPT Cl
Sprint
Panel
1900
122
16
Unknown
240 1
5 1
65
20 1
44
32.53
IEBI 21. 8 Street 0 - B.urlington, MAD 1803 4 1.800.786.2346.
W
RF-EME Compliance Report USID No. 13291 Site No. CN3343
EBI Project. No. 621 10297. 2350 Page Mill Road, Los Altos, California
I . Note that EBI uses an assumed set of antenna specifications and powers for unknown and other carrier antennas for modeling purposes.
2. Note there are only 4 ATT antennas at this site. For clarity, the different frequencies, for each antenna are entered on different lines.
21. B Street 4 Burlington, MA 01803 0 1.800:786.2346.,
.EBI
;.
TX.
Horizontal
Antenna
Antenna..
Freq
;ERP "
Gain
Azimuth,
Length
Beamwidth`
Number ::
.'Operator.
'., Type
(MHz) ,..
(Watts)
::
RF-EME Compliance Report
EBI Project No. 621 10297
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
Appendix C
Roofview® Export File
;' ESI 21 B Street • Burlington, MA 01803 • 1.800.786.2346
r
Map; Settings, Antenna, and Symbol Data Table .,Exported from workbook=> RooNiew 435 xis i.
'Doneon S7G/2011it 3:41.2S'PM.11.-
Use this format to prepare other data sets for the RooNlew workbook file.
you may use'as many'iows in this TOP,header
The critical point are 'the cells In'COLUMN ONE that read 'Start.,.' (eg, StartMapDefinition)
If used, these (4);headers'are required to he spelled exactly,.is one'wcird:'(eg.StarfMapDitmnwn) --
-
The veEy next;iow will be considered the'start of that data block
The first'row of thedata block can be'a header'(as shown below), but thisis optional -'
When buildings text file for import, Add the Map info first, then the Antenna daYt,• followed by the -symbol data; �
All rows above t a first marker Ilne'Start._',wllI 6e ignored,'no matter liow many there'are
This -area is,foi you useYor documentation.'" "" `
. .
_
.End of help comments. ..
- You can'place as inuch text here as. yo6. wish aslorig as you don't place itbelow
the Start Map Definition row below the. blue line:
You may Insert more, rows using the Insertmenu.
Should you. need additional Rnes to document your pro)ect, simply insert addihonafrows ,.
i
by highlighting.the�row number adjacent to the blue line below and then clicking on the Insert menu
and selecting rows. ,•
"
MapDefi`n(tion
. Roof Max YRoof Max XMap Max Y Map Max X Y Offset X Offset tuber of Art envelope
List Of Areas
210 210 210 210 0 0 1 :$11:$HL$2Z$11:$HL$220
$K$11:$HL$220
rl5eltin s ata
Standard Method Uptime Scale Factor. Low Thr Low Color Mid Thr Mid Color Hi Thr
Hi Color
Over Color
Ap Ht Mult
p Ht Method
' 4 2 T 1 100 ,1 500 4 5000
. 2
3
1.5
1
.sten a b, to provide an ID (ant 1) for all antennas
(MHz) Trans Trans Coax Coax Other Input
Calc
(ft)
(ft)
(ft)
(ft)
dBd
BWdth
Uptime ON
ID Name Freq Power Count Len Type Loss Power
Power
Mfg
Model
X
Y
Z
Type Aper
Gain
Pt Dir
Profile flag
ATT Al GSM 850 20.6954009 2
41.3908018
Kathrein
742-264
_
70
23
5.85
4.3
12
68;37
OW
ATT Al UMTS 1900 61.08283306 1
61.08283306
Kathrem
742-264
70
23
5.85
4.3
14.9
65;37
ON -
ATT A2 UMTS 850 55.69671641 1
55.69671641
Kathrein
742-264
67
25
5.85
4.3
11.9
68;37
ON -
ATT A2 GSM 1900 13,01719976 2
26.03439952
Kathrein
.742-264
67
25
5.85
4.3
15
•65;37
OW
ATT Bl GSM 850 20.6954009 2
41.3908018
Kathrein
742-264
6'
60
5.85
4.3
12
68;307
ON -
ATT Bl UMTS 1900 56.99649236 1
56.99649236
Kathrein
742-264
6
60
5.85
4.3
14.9
65;307
ON -
ATT 82 UMTS 850 55.69671641 1
55.69671641
Kathrein
742-264
4
58
5.85
4.3
11.9
68;307
ON -
ATT B2 GSM 1900 13.01719976 2
26.03439952
Kathrein
742-264
4
58
5.85
4.3
15
65;307
ON -
ATT Cl GSM 850 20.6954009 2
41.3908018
Kathrein
742-264
18
11
5.85
4.3
12
68;237
ON -
ATT Cl UMTS 1900 56.99649236 1
56.99649236
Kathrein
742-264
18
11
5.85
4.3
14.9
65;237
ON -
Aft C2 UMTS 850 55.69671641 1
"_
55.69671641
Kathrein
742-264
21
9.
5.85
4.3
11.9
68;237
OW
ATT C2 GSM "1900 13.01719976 2
26.03439952
Kathrein
742-264
21
9
5.85
4.3
15
65;237
ON•
SPTAl Sprint 1900 10 1 3
5.011872336
Unknown
Unknown
63
27
9.75
4.5
16
65;37
ON -
SPT A2 Sprint 1900 10 1 3
5.011872336
Unknown
Unknown
60
28
9.75
4.5
16
65;37
ON -
SPT 81 Sprint 1900 10 1 3
5.011872336
Unknown
Unknown
12
78
9.75
4.5
16
65;307
ON -
SPT B2 Sprint 1900 10 1 3
5.011872336
Unknown
Unknown
8
76
9.75
4.5
16
65;307
ON -
SPT Cl Sprint 1900 10 1 3
-Sprint
5.011872336
Unknown
Unknown
9
28
9.75
4.5
12
65;237
ON -
SPT C2 1900 10 i'. 3
5.011872336
Unknown
Unknown
30
25
9.75'
4.5
12
65;237
ON•
VZN Al. . Verizon 850 - 20 .6 290 1-5/8 LDF 1.52
47.93814736'
Antel
BXD 63606380CF
51
41
9.0375
5.925
14.5
63;60
ON •
VZN A2 Verizon 700 20 1 290 1-5/8 LDF 1.52
9.827204546
Ante]
BXA-70063-4CF-4
52
40
10.025
3.95
12.5
65;60
ON-
VZN Bl Verizon 85D 20 6 290 1-5/8 LDF 1.52
47.93814736
Antel
BXD 63606380CF
16
14
9.0375
5.925
14.5
63;240
ON•
VZN B2 Verizon 700 20 1 290 1-5/8 LDF 1.52
9.827204546
Antel
BXA-70063-4CF-4
16
16
10.025
3.95
12.5
65;240
ON •
VZN C3 Verizon 850 20 6 290 1-5/8 LDF 1.52
47.93814736
Ante]
BXD 63606380CF
49
46
9.0375
5.925
.14.5
63;340
ON
VZN C2 Verizon 700 20 1 290 1-S/8 LDF 1.52
. rtSymbolD to
9.827204546
Antel
BXA-70063-4CF-4
50
47
10,025
3.95
12.5
65;340
ON-
- Sym Map Market Roof,X Roof.Y'. Map Labelnotes for this table only
Sym 5 35 AC Unit mple symbols
Sym 14 5 Roof Access
Sym 45 5 AC Unit
Sym 45 20 Ladder
RF-EME Compliance Report
EBI Project No. 621 10297
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
Appendix D
Roofview ® Graphics
E�1 21 B Street ♦ Burlington, MA 01803 • 1.800.786.2346
%.of FCC Public Exposure Limit-
imit. .Exposure
ExposureLevel > 5,000
500 < Exposure Level <_ 5000
100 < Exposure Level < 500
®
Exposure Level:5 100
0' 20' 40' 60'
AT&T ArtErms
Ott -sr Lim er Arta -Ms. .
% of FCC Public Exposure Limit
Exposure Level >5
® Exposure Level <_ 5
AT&T Arterms
Other.Canier Arterms .
0' 20' 40' 60'
RF-EME Compliance Report
EBI Project No. 621 10297
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
Appendix E
Compliance/Signage Plan
UEBI 21 B Street + Burlington, MA 01803 0 1.800.786.2346
0
AT&T Arterms
M"
Other Wier Arierms
-Dcmot-.,j AT&T Informational 5,9,, 2
Denotes AT&T InfD1141360nal Sign 3
D—ozes AT&T In —wfio.al Sig. 4
A ,,
I : .
Sign Identificatlon Legend
D—oc., AT&T W-Matio—f Sip I
-Dcmot-.,j AT&T Informational 5,9,, 2
Denotes AT&T InfD1141360nal Sign 3
D—ozes AT&T In —wfio.al Sig. 4
A ,,
I : .
Denotei AT& T NOTICE Sip
Sam
Denotes AT&T CAUTION Sip
Denwes AT&T WARNING Sip
Monopole OMNI
Antennas
,OMNI
Antennas
0. 70, 40' 60'
�J
RF-EME Compliance Report
EBI Project No. 621 10297
USID No. 13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
Appendix F
Local Regulations
E�1 21 B Street • Burlington, MA 01803 • 1.800.786.2346
RF-EME Compliance Report
EBI Project No. 621 10297
CITY OF LOS ALTOS REGULATIONS:
USID No.'13291 Site No. CN3343
2350 Page Mill Road, Los Altos, California
The Los Altos Municipal Code specifies a number of requirements for continuing operation of existing
sites and for application of proposed sites. For the purposes of this report, the following city
requirements for existing sites have been addressed. Chapter 1 1.12.040 of the municipal code states
that; B. A qualified electrical engineer licensed by the state of California shall prepare an evaluation of
the radio frequency (RF) field exposure conditions of the facility, demonstrating that the radiation levels
generated by the facility meet federal standards and that interference to consumer electronic products
is unlikely to occur. The evaluation shall .include the following: 1. The maximum exposure conditions
directly adjacent to the antenna and the closest point the public could come into contact with radiation,
including upper floors of residential, institutional, or commercial buildings; 2. The maximum cumulative
exposure conditions of all personal wireless services and facilities within the vicinity; 3.Certification shall
be provided by the electrical engineer prior to final inspection of the facility that the RF field exposure
conditions are per the submitted evaluation.
EBI 21 B Street • Burlington, MA 01803 ♦ 1.800.786.2346
Attachmcnt 4
L`J
V:'
IVA
4a 4t
jr at&t Page Mill 280 Site # CN3343 Aerial View
12.13.2010 2350 Page Mill Road ADL Simulations, Inc.
Los Altos, CA 94022 755 Baywood Drive, Suite 350
Petaluma, CA 94954
EXISTING
PROPOSED No changes to
'�- existing
antennas.
aw Page Mill 280 Site # CN3343
12.13.2010 2350 Page Mill Road
Los Altos, CA 94022
Looking NW
ADL Simulations, Inc.
755 Baywood Drive, Suite 350
Petaluma, CA 94954
EXISTING
at&t Page Mill 280
� ' V
v 'r W
1
Site # CN3343
No changes to
existing
antennas.
axaie
Looking NW
12.13.2010 2350 Page Mill Road ADL Simulations, Inc.
LOS Altos, CA 94022 755 Baywood Drive, Suite 350
Petaluma, CA 94954
Attachment 5
TOWN OF LOS ALTOS HILLS LuaALrlMIL0
26379 Fremont Road
Los Altos Hills, CA 94022
Phone: (650) 941-7222 r'
www.losaltoshills.ca.gov CALIF. RNIA
Wireless Communications Facilities Policy
Amended 10/12/2006
Code Sections
Section 10-1.703 (h)(2) of the Zoning Ordinance allows service uses, including "communications
facilities", to be permitted in the Town if a Conditional Use Permit is granted by the Planning
Commission and City Council. Section 10-1.1007 (1) of the Code outlines findings which must
be made to approve a use permit, including the proper location of the use or facility relative to
others in the vicinity, the adequacy of the site to accommodate the use, and that the facility or use
will not have an adverse effect on adjacent properties.
Intent:
The purpose of this policy is to outline the desired criteria for siting of wireless communications
facilities, generally including monopoles, related antennas, and equipment shelters. As the
Town's land use is virtually entirely residential, wireless communications facilities will be most
appropriately located on public or institutional sites existing within the Town. Colocation,
location on or near existing buildings, and landscape screening will be desired to minimize the
visual impacts of the facilities on neighbors and the public.
Policy:
1. Priorities for siting - Wireless communication facilities shall generally be located on
properties with priority as follows:
a. Town -owned properties
b. Foothill College
c. Water tanks
d. Other public or quasi -public facilities, such as schools or churches
e. Residential properties of at least ten (10) acres
2. Siting on residential parcels - Wireless communication facilities may be permitted on
properties used for residential purposes or vacant parcels intended for residential property
owner provides written consent and significant visual impacts are mitigated.
3. Colocation — Colocation of wireless communication facilities with other facilities is
encouraged to the maximum extend feasible, as long as the colocation is technologically
compatible and does not substantially increase visual impacts. The Town will generally
require as a condition of approval for any conditional use permit that the applicant permit
colocation of other facilities, subject to technological constraints and Town review.
Policy: Wireless Communication Facilities
Page 2
3a. Applications for colocation on an existing wireless communications facility shall be subject
to an administrative review provided that the following requirement is met:
• The colocated antennas and ground equipment shall be mounted or installed
within an existing tower, building, or structure where the physical appearance of
the existing facility is not altered to accommodate the additional antennas and
equipment.
4. Landscape screening and color - Landscape screening shall be required by the Town to
minimize the visual impacts of wireless communication facilities. Poles, antennas, and
equipment buildings should be painted to blend with the surrounding environment and/or
buildings to further minimize visual impacts.
5. Environmental review - A Negative Declaration will typically be prepared for review of
proposed wireless communication facilities, with special attention to the visual impacts of the
facilities. Categorical exemptions may be used where facilities are colocated with or would be
minimal additions to existing structures, with negligible additional visual impact.
6. Antenna master plans — Any applicant for a wireless communication facility site shall submit
applications, to the best of their knowledge, for all sites anticipated to be required by the
carrier for a three (3) to five (5) year period, and the request shall be reviewed by the Planning
Commission and the City Council as a master plan application.
7. Terms of permits and abandonment of sites — Conditional use permits for wireless
communications facilities shall be established for periods not to exceed five (5) years, at
which time renewal of the permit must be requested by the applicant. More frequent review of
the operation of the permit may be made a condition of approval. Approval will also require a
written agreement from the applicant that, should the use be discontinued by the carrier, all
facilities will be removed not later then ninety (90) days after discontinuance of the use or
abandonment. Such a provision shall also be included in any lease with the Town for use of
Town lands for wireless communications facilities. The Town may require bonding or other
surety to assure the removal of such facilities.
8. Wireless communication firms shall, at the time of application for permits, demonstrate efforts
which have been mad to inform neighboring residents of the proposed facilities, such as
conducting meetings, or mailing fact sheets and/or letters, etc ... to neighbors.
9. The Planning Director is authorized to reduce or waive permit fees for any wireless
communications facility that is proven to expand wireless coverage in the Town and is
structurally capable of colocation.
10. The Planning Director is authorized to administratively approve portable wireless
communications facilities also known as cell on wheels or COWs on certain properties as
specified in Policy #1 on a temporary basis.