HomeMy WebLinkAboutMCUP 07-10A; CARLSBAD VONS WCF - CA-SDG5966-A; SITE COMPLIANCE REPORT; 2009-10-27~site
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Table of Contents
1 EXECUTIVE SUMMARY ....................................................................................... 2
1 . 1 PURPOSE OF REPORT ...................................................... ············ ......................... 2
1.2 STATEMENT OF COMPLIANCE··············· ................................................................ 3
2 SITE COMPLIANCE ............................................................................................. 4
2.1 ACTIONS FOR SITE COMPLIANCE .......................................................................... 4
2.2 SITE SAFETY PROCEDURES ..................................................................................... 5
3 SITE ACCESS PROCEDURES ............................................................................... 6
4 ANTENNA INVENTORY AND PICTURES ............................................................. 8
4.1 TRANSMITTING ANTENNA INVENTORY ..................................................................... 8
4.2 ANTENNA INVENTORY AND PICTURES .................................................................... 9
5 SITE MEASUREMENTS COLLECTED ................................................................... 15
6 THEORETICAL RF EMISSIONS DIAGRAMS ....................................................... 16
7 FIELD TECHNICIAN CERTIFICATION ................................................................ 18
8 ENGINEER CERTIFICATION .............................................................................. 19
APPENDIX A -STATEMENT OF LIMITING CONDITIONS ......................................... 20
APPENDIX B -ASSUMPTIONS AND DEFINITIONS .................................................. 21
GENERAL MODEL ASSUMPTIONS ................................................................................... 21
USE OF GENERIC ANTENNAS ......................................................................................... 21
DEFINITIONS ................................................................................................................. 22
APPENDIX C -RULES & REGULATIONS ................................................................... 24
EXPLANATION OF APPLICABLE RULES AND REGULATIONS .................................................. 24
OCCUPATIONAL ENVIRONMENT EXPLAINED .................................................................... 24
APPENDIX D -GENERAL SAFETY RECOMMENDATIONS ....................................... 25
ADDITIONAL INFORMATION ........................................................................................... 26
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sitesafe.com
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1 Executive Summary
1.1 Purpose of Report
Clearwire has contracted with Sitesafe, Inc. (Sitesafe), an independent Radio
Frequency (RF) regulatory and engineering consulting firm, to determine whether
the communications site, CA-SDG5966-A (SD40XC307) -Carlsbad Vons, located at
7710 El Camino Real, Carlsbad, CA, is in compliance with Federal Communication
Commission (FCC) Rules and Regulations for RF emissions.
Sitesafe's field personnel visited CA-SDG5966-A (SD40XC307) -Carlsbad Vons on
October 20, 2009. This report contains a detailed summary of the RF environment
at the site including:
• photographs of the site;
• diagram of the site;
• inventory of the make / model of all transmitting antennas found on the site
(where possible);
• record of any Maximum Permissible Exposure ("MPE") measurements taken on
the site, as applicable; and
• theoretical MPE based on modeling.
This report addresses exposure to radio frequency electromagnetic fields in
accordance with the FCC Rules and Regulations for all individuals, classified in two
groups, "Occupational or Controlled" and "General Public or Uncontrolled."
The FCC defines an Occupational or Controlled environment as one where
persons are exposed to RF fields as a consequence of their employment and
where those persons exposed have been made fully aware of the potential for
exposure and can exercise control over their exposure. Typical criteria for an
Occupational or Controlled environment is restricted access (i.e. locked doors,
gates, etc.) to areas where antennas are located coupled with proper RF warning
signage.
The FCC defines a site as a General Public or Uncontrolled environment when
human exposure to RF fields occurs to the general public or in which persons who
are exposed as a consequence of their employment may not be fully aware of the
potential for exposure or can not exercise control over the exposure. Typical
criteria for a General Public or Uncontrolled environment are unrestricted access
(i.e. unlocked or no restrictions) to areas where antennas are located without
proper RF warning signage being posted.
The theoretical modeling of the RF energy being transmitted at a given site have
been performed in accordance with the FCC's Office of Engineering and
Technology Bulletin 65 ("OET Bulletin 65"), Evaluating Compliance with FCC
Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields, Edition
97-01, published August 1997.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sitesafe.com
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This document specifically addresses compliance of Clearwire's transmitting
facilities independently and in relation to all collocated transmitting facilities, which
together constitute the RF environment at the site.
If you have any questions regarding RF safety and regulatory compliance, please
do not hesitate to contact Sitesafe's Customer Support Department at (703) 276-
1100.
1.2 Statement of Compliance
Upon evaluation of the cumulative RF emission levels from all operators at this site,
and a thorough review of site access procedures, hazard signage and visible
antenna locations, Sitesafe has determined that:
This site is conditionally compliant with the FCC rules and regulations, as described
in OET Bulletin 65.
Clearwire is predicted to contribute greater than 5% of the maximum permissible
exposure (MPE) based on theoretical modeling using parameters supplied by the
client. A detailed explanation of the 5% rule can be found in the Definition section
of Appendix B.
The compliance determination is based on Occupational MPE levels due to
theoretical levels, RF signage placement, proposed antenna inventory and the
level of restricted access to the antennas at the site. Any deviation from the
Clearwire's proposed deployment plan could result in the site being rendered non-
compliant. Measurements have also been performed to validate the assumptions
used in out theoretical modeling of this site.
Measurements provide a view of MPE percentage levels at the site at the time of
Sitesafe's visit and are used to validate modeling results. Theoretical modeling is
used for determining compliance and the percentage of MPE contribution.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
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2 Site Compliance
2. 1 Actions for Site Compliance
Based on common industry practice and our understanding of FCC and OSHA
requirements, this section provides a statement of recommendations for site
compliance. RF alert signage recommendations have been proposed based on
existing measurements and theoretical analysis of MPE levels. Sitesafe has
documented the locations of any RF signs and barriers that are required for
compliance. Barriers can consist of locked doors, fencing, railing, rope, chain, paint
striping or tape, combined with RF alert signage.
This site is conditionally compliant with the FCC rules and regulations and no further
steps must be taken at this time. However, because Clearwire is predicted to
contribute greater than 5% of the maximum permissible exposure (MPE), should the
site be subsequently deemed non-compliant for any reason, any wireless
operator(s) who contribute greater than 5% of the maximum permissible energy
would be jointly liable for bringing the site into compliance.
During our field visit, Sitesafe documented the presence and location of signs and
barriers. Areas that require corrective action for site compliance are listed below.
No action means the location is compliant.
Site Access Locations
No action required.
Clearwire Proposed Alpha Sector Location
Install antennas in accordance with proposed Clearwire deployment plan.
Clearwlre Proposed Beta Sector Location
Install antennas in accordance with proposed Clearwire deployment plan.
Clearwire Proposed Gamma Sector Location
Install antennas in accordance with proposed Clearwire deployment plan.
200 N. Glebe Road• Suite 1000 • Arlington, VA 22203-3728
703.27 6.1100 • info@sitesafe.com
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2.2 Site Safety Procedures
The following items are general safety recommendations that should be
administered on a site by site basis as needed by the carrier.
General Maintenance Work: Any maintenance personnel required to work
immediately in front of antennas and / or in areas indicated as above 100% of the
Occupational MPE limits should coordinate with the wireless operators to disable
transmitters during their work activities.
Training and Qualification Verification: All personnel accessing areas indicated as
exceeding the General Population MPE limits should have a basic understanding
of EME awareness and RF Safety procedures when working around transmitting
antennas. Awareness training increases a workers understanding to potential RF
exposure scenarios. Awareness can be achieved in a number of ways (e.g.
videos, formal classroom lecture or internet based courses).
Physical Access Control: Access restrictions to transmitting antennas locations is
the primary element in a site safety plan. Examples of access restrictions are as
follows:
• Locked door or gate
• Alarmed door
• Locked ladder access
• Restrictive Barrier at antenna locations (e.g. Chain link with posted RF
Sign)
RF Signage: Everyone should obey all posted signs at all times. RF signs play an
important role in properly warning a worker prior to entering into a potential RF
Exposure area.
Assume all antennas are active: Due to the nature of telecommunications
transmissions, an antenna transmits intermittently. Always assume an antenna is
transmitting. Never stop in front of an antenna. If you have to pass by an antenna,
move through as quickly and safely as possible thereby reducing any exposure to
a minimum.
Maintain a 3 foot clearance from all antennas: There is a direct correlation
between the strength of an EME field and the distance from the transmitting
antenna. The further away from an antenna, the lower the corresponding EME
field is.
Rooftop RF Emissions Diagram: Section 6 of this report contains an RF Emissions
Diagram that outlines various theoretical Maximum Permissible Exposure (MPE)
areas on the rooftop. This analysis is all theoretical and assumes a duty cycle of
100% for each transmitting antenna at full power. This analysis is a worst case
scenario. This analysis is based on one of two access control criteria: General
Public criteria means the access to the site is uncontrolled and anyone can gain
access. Occupational criteria means the access is restricted and only properly
trained individuals can gain access to the antenna locations.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sitesofe.com
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4 Antenna Inventory and Pictures
4.1 Transmitting Antenna Inventory
The Antenna Inventory shows all transmitting antennas at the site (see Section 4.2).
This inventory was verified on site, and was utilized by Sitesafe to perform
theoretical modeling of RF emissions. The inventory coincides with the site
diagrams in this report, identifying each antenna's location at CA-SDG5966-A
(SD40XC307) -Carlsbad Vons. The antenna information collected includes the
following information:
• Licensee or wireless operator name
• Frequency or frequency band
• Transmitter power -Effective Radiated Power ("ERP"), or Equivalent Isotropic
Radiated Power ("EIRP") in Watts
• Antenna manufacturer make, model, and gain
For other carriers at this site, the use of "Generic" as an antenna model, or
"Unknown" for an operator means the information with regard to carrier, their FCC
license and/or antenna information was not available nor could it be secured
while on site. Equipment, antenna models and nominal transmit power were used
for modeling, based on past experience with radio service providers.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sitesafe.com
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5 Site Measurements Collected
This section provides a summary of the measurements collected at the site. Actual
measurements locations at which these data points were collected are included in
the RF emission diagram provided in Section 6 of this report. Two types of
measurements were collected at each measurement location: maximum (peak)
and spatial average. The spatial average measurement consists of a collection of
ten (10) measurements within a ten (10) second time interval taken from zero (0) to
six (6) feet in height. The purpose of this measurement technique is to identify the
average power density over the dimensions of a typical human body.
Table 2 below contains all the measurements collected from accessible areas
located at the site at the time of Sitesafe's visit. Whenever possible, measurements
are taken in front of the antenna in the transmitting direction. However, because
of the antenna configuration at this site, specific emissions could not be discerned
from nearby facilities, and no attempt was made to determine power density
levels from a specific transmitting antenna.
Highest Measured Occupational Level: <1%
This value is equal to:
Highest General Public Level: <5%.
Table 2: Spatial Average and Maximum Occupational Measurements
Measurements Spatial Maximum Measurements Spatial Maximum
Points
Ml
M2
M3
M4
Averaae Points Average
<1 % <1 % MS <1 %
<1 % <l % M6 <l %
<1 % <1 % Ml <1 %
<1 % <l % MS <1 %
RF meters and probes have been calibrated and used according to the
manufacturer's specifications. Measurements provide a view of the MPE
percentage levels at the site at the time of Sitesafe's site visit and are used to
validate modeling results. Theoretical modeling is used for determining
compliance and the percentage of MPE contributions.
An RF Emission diagram has been included in section 6 of this document. All
measurement locations are identified in this diagram. The locations of
measurements in the RF Emission diagram can be cross referenced with Table 2
(above) to determine the actual spatial average and maximum measurement
value per location.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.27 6.1100 • info@sitesafe.com
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<1 %
<1 %
<l %
<l %
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6 Theoretical RF Emissions Diagrams
The RF emission diagram(s) below display theoretical spatially averaged
percentage of the Maximum Permissible Exposure for all systems at the site unless
otherwise noted. These diagrams use modeling as proscribed in OET Bulletin 65
and assumptions detailed in Appendix B.
The key at the bottom of each diagram indicates if percentages displayed are
referenced to FCC Occupational or General Public Maximum Permissible Exposure
(MPE) limits. Color coding on the diagram is as follows:
• Areas indicated as Gray are below 5% of the MPE limits or below.
• Green represents areas predicted to be between 5% and 20% of the MPE limits.
• Yellow represents areas predicted to be between 20% and 100% of the MPE
limits.
• Red areas indicated predicted levels greater than 100% of the MPE limits.
General Population diagrams are specified when an area is not accessed
controlled; i.e. personnel that do not meet Occupational or RF Safety trained
criteria, could gain access.
If trained occupational personnel require access to areas that are delineated as
Red or above 100% of the limit, Sitesafe recommends that they utilize the proper
personal protection equipment (RF monitors), coordinate with the carriers to
reduce or shutdown power, or make real-time power density measurements with
the appropriate power density meter to determine real-time MPE levels. This will
allow the personnel to ensure that their work area is within exposure limits.
The key at the bottom also indicates the level or height of the modeling with
respect to the main level. The origin is typically referenced to the main rooftop
level, or ground level for a structure without access to the antenna level. For
example:
Average from O feet above to 6 feet above origin
and
Average from 20 feet above to 26 feet above origin
The first indicates modeling at the main rooftop (or ground) level averaged over 6
feet. The second indicates modeling at a higher level (possibly a penthouse level)
of 20 feet averaged over 6 feet.
Abbreviations used in the RF Emissions Dia rams
PH=##' Penthouse at## feet above main roof
M## Measurement## taken durin a site visit
200 N. Glebe Road• Suite 1000 • Arlington, VA 22203-3728
703.27 6.1100 • info@silesafe.com
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Type
Notice
Caution
WarninQ
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rf compl1once· experts
As discussed in Section 3.1, site measurement locations for spatial average
measurements collected at the time of Sitesafe's visit have been added to the RF
emissions diagram. While the theoretical modeling represents worst case MPE levels
based on the assumption(s) detailed above, the measurement data is a snapshot
of MPE levels at the time of our visit, and dependent on transmitter duty cycle,
system implementation and emissions from other RF sources at nearby antenna
sites.
Additional Information in the RF Emissions Diagrams Key
The RF Emission Diagram provides indications of RF signage, barriers and locked
doors. The table below lists the abbreviations used to indicate locked doors, signs
and barriers:
Table 3: RF Sianaae and Barrier Kev
RF .Sianai:ie Barriers
Existing Recommended Type Existing Recommended
Location Location Location Location
NE NR Locked Door LE LR
CE CR FencinQ
WE WR Rope Chain RE RR
Paint Stripes
As discussed in Section 5, site measurements collected at the time of Sitesafe's visit
have been added to the RF Emission diagrams. While the software modeling
represents theoretical MPE levels based on the assumptions detailed above, the
site measurement data is a snapshot of MPE levels, and dependent on transmitter
duty cycle, system implementation and emissions from other RF sources at nearby
antenna sites.
200 N. Glebe Road• Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sitesafe.com
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7 Field Technician Certification
I, Matt Dickson, state:
That I am an employee of Sitesafe, Inc., in Arlington, Virginia, which provides RF
compliance services to clients in the wireless communications industry; and
That I have successfully completed RF Safety Awareness training, am aware of the
hazards and, therefore, can be exposed to RF fields classified for "Occupational" exposure;
That I am familiar with the Rules and Regulations of the Federal Communications
Commission (FCC) as well as the regulations of the Occupational Safety and Health
Administration (OSHA), both in general and specifically as they apply to the FCC Guidelines
for Human Exposure to Radio-frequency Radiation; and
That I have been trained in the proper use of measurement equipment, and have
successfully completed Sitesafe training in policy, procedure and proper site measurement
and modeling; and
That I performed survey measurements of the RF environment at the site identified as
CA-SDG5966-A (SD40XC307) -Carlsbad Vons on October 20, 2009 at 2:00 PM in order to
determine where there might be electromagnetic energy that is in excess of both the
Controlled Environment and Uncontrolled Environment levels; and
That the survey measurements were performed with a Nardo Microwave, model
8718B-10 field intensity meter (serial number 01928) and a Nardo Microwave, model A87 42D
field intensity probe, (serial number 14001) calibrated on 3/11/2009; and
That I have prepared this Site Compliance Report and believe it to be true and
accurate to the best of my knowledge and based on data gathered.
By: Matt Dickson
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.27 6.1100 • lnfo@sltesafe.com
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8 Engineer Certification
The professional engineer whose seal appears on the cover of this document hereby
certifies and affirms that:
I am registered as a Professional Engineer in the jurisdiction indicated in the
professional engineering stamp on the cover of this document; and
That I am an employee of Sitesafe, Inc., in Arlington, Virginia, at which place the staff
and I provide RF compliance services to clients in the wireless communications industry; and
That I am thoroughly familiar with the and Regulations of the Federal
Communications Commission (FCC) as well as the regulations of the Occupational Safety
and Health Administration (OSHA), both in general and specifically as they apply to the FCC
Guidelines for Human Exposure to Radio-frequency Radiation; and
That survey measurements of the site environment of the site identified as CA-
SDG5966-A (SD40XC307) -Carlsbad Vons have been performed in order to determine where
there might be electromagnetic energy that is in excess of both the Controlled Environment
and Uncontrolled Environment levels; and
That I have thoroughly reviewed this Site Compliance Report and believe it to be true
and accurate to the best of my knowledge as assembled by and attested to by Scott Hoy.
October 27. 2009
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sltesafe.com
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Definitions
5% Rule-The rules adopted by the FCC specify that, in general, at multiple
transmitter sites actions necessary to bring the area into compliance with the
guidelines are the shared responsibility of all licensees whose transmitters produce
field strengths or power density levels at the area in question in excess of 5% of the
exposure limits. In other words, any wireless operator that contributes 5% or greater
of the MPE limit in an area that is identified to be greater than 100% of the MPE limit
is responsible taking corrective actions to bring the site into compliance.
Compliance -The determination of whether a site is safe or not with regards to
Human Exposure to Radio Frequency Radiation from transmitting antennas.
Decibel (dB) -A unit for measuring power or strength of a signal.
Duty Cycle -The percent of pulse duration to the pulse period of a periodic pulse
train. Also, may be a measure of the temporal transmission characteristic of an
intermittently transmitting RF source such as a paging antenna by dividing average
transmission duration by the average period for transmission. A duty cycle of 100%
corresponds to continuous operation.
Effective (or Equivalent) Isotropic Radiated Power (EIRP) -The product of the power
supplied to the antenna and the antenna gain in a given direction relative to an
isotropic antenna.
Effective Radiated Power (ERP) -In a given direction, the relative gain of a
transmitting antenna with respect to the maximum directivity of a half wave dipole
multiplied by the net power accepted by the antenna from the connecting
transmitter.
Gain (of an antenna) -The ratio of the maximum intensity in a given direction to
the maximum radiation in the same direction from an isotropic radiator. Gain is a
measure of the relative efficiency of a directional antennas as compared to an
omni directional antenna.
General Population/Uncontrolled Environment -Defined by the FCC, as an area
where RFR exposure may occur to persons who are unaware of the potential for
exposure and who have no control of their exposure. General Population is also
referenced as General Public.
Generic Antenna-For the purposes of this report, the use of "Generic" as an
antenna model means the antenna information was not provided and could not
be obtained while on site. In the event of unknown information, Sitesafe will use
our industry specific knowledge of antenna models to select a worst case scenario
antenna to model the site.
Isotropic Antenna -An antenna that is compl·etely non-directional. In other words,
an antenna that radiates energy equally in all directions.
Maximum Measurement -This measurement represents the single largest
measurement recorded when performing a spatial average measurement.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
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Maximum Permissible Exposure (MPE) -The rms and peak electric and magnetic
field strength, their squares, or the plane-wave equivalent power densities
associated with these fields to which a person may be exposed without harmful
effect and with acceptable safety factor.
Occupational/Controlled Environment -Defined by the FCC, as an area where
Radio Frequency Radiation (RFR) exposure may occur to persons who are aware of
the potential for exposure as a condition of employment or specific activity and
can exercise control over their exposure.
OET Bulletin 65 -Technical guideline developed by the FCC's Office of Engineering
and Technology to determine the impact of Radio Frequency radiation on
Humans. The guideline was published in August 1997.
OSHA (Occupational Safety and Health Administration) -Under the Occupational
Safety and Health Act of 1970, employers are responsible for providing a safe and
healthy workplace for their employees. OSHA's role is to promote the safety and
health of America's working men and women by setting and enforcing standards;
providing training, outreach and education; establishing partnerships; and
encouraging continual process improvement in workplace safety and health. For
more information, visit www.osha.gov.
Radio Frequency Radiation -Electromagnetic waves that are propagated from
antennas through space.
Spatial Average Measurement-A technique used to average a minimum of ten
(10) measurements taken in a ten (1 OJ second interval from zero (OJ to six (6) feet.
This measurement is intended to model the average energy an average sized
human body will absorb while present in an electromagnetic field of energy.
Transmitter Power Output (TPO) -The radio frequency output power of a
transmitter's final radio frequency stage as measured at the output terminal while
connected to a load.
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Appendix C -Rules & Regulations
Explanation of Applicable Rules and Regulations
The FCC has set forth guidelines in OET Bulletin 65 for human exposure to radio
frequency electromagnetic fields. Specific regulations regarding this topic are
listed in Part 1, Subpart I, of Title 47 in the Code of Federal Regulations. Currently,
there are two different levels of MPE -General Public MPE and Occupational MPE.
An individual classified as Occupational can be defined as an individual who has
received appropriate RF training and meets the conditions outlined below.
General Public is defined as anyone who does not meet the conditions of being
Occupational. FCC and OSHA Rules and Regulations define compliance in terms
of total exposure to total RF energy, regardless of location of or proximity to the
sources of energy.
It is the responsibility of all licensees to ensure these guidelines are maintained at all
times. It is the ongoing responsibility of all licensees composing the site to maintain
ongoing compliance with FCC rules and regulations. Individual licensees that
contribute less than 5% MPE to any total area out of compliance are not
responsible for corrective actions.
OSHA has adopted and enforces the FCC's exposure guidelines. A building owner
or site manager can use this report as part of an overall RF Health and Safety
Policy. It is important for building owners/site managers to identify areas in excess
of the General Population MPE and ensure that only persons qualified as
Occupational are granted access to those areas.
Occupational Environment Explained
The FCC definition of Occupational exposure limits apply to persons who:
• are exposed to RF energy as a consequence of their employment;
• have been made aware of the possibility of exposure; and
• can exercise control over their exposure.
OSHA guidelines go further to state that persons must complete RF Safety
Awareness training and must be trained in the use of appropriate personal
protective equipment.
In order to consider this site an Occupational Environment, the site must be
controlled to prevent access by any individuals classified as the General Public.
Compliance is also maintained when any non-occupational individuals (the
General Public) are prevented from accessing areas indicated as Red or Yellow in
the attached RF Emissions diagram. In addition, a person must be aware of the RF
environment into which they are entering. This can be accomplished by an RF
Safety Awareness class, and by appropriate written documentation such as this
Site Compliance Report.
All Clearwire employees who require access to this site must complete RF Safety
Awareness training and must be trained in the use of appropriate personal
protective equipment.
200 N. Glebe Road • Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • info@sitesafe.com
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• Green represents areas predicted to be between 5% and 20% of the General
Public MPE limits. This level is safe for a worker to be in at any time.
• Yellow represents areas predicted to be between 20% and 100% of the General
Public MPE limits. This level is safe for a worker to be in at any time.
• Red areas indicated predicted levels greater than 100% of the General Public
MPE limits. This level is not safe for the General Public to be in.
7. For an Occupational environment the four color levels identified in this analysis
can be interpreted in the following manner:
• Areas indicated as Gray are at 5% of the Occupational MPE limits or below.
This level is safe for a worker to be in at any time.
• Green represents areas predicted to be between 5% and 20% of the
Occupational MPE limits. This level is safe for a worker to be in at any time.
• Yellow represents areas predicted to be between 20% and 100% of the
Occupational MPE limits. Only individuals that have been properly trained in RF
Health and Safety should be allowed to work in this area. This is not an area
that is suitable for the General Public to be in.
• Red areas indicated predicted levels greater than 100% of the Occupational
MPE limits. This level is not safe for the Occupational worker to be in for
prolonged periods of time. Special procedures must be adhered to such as
lock out tag out procedures to minimize the workers exposure to EME.
8. Use of a Personal Protective Monitor: When working around antennas, Sitesafe
strong recommends the use of a Personal Protective Monitor (PPM). Wearing a
PPM will properly forewarn the individual prior to entering an RF exposure area.
Keep a copy of this report available for all persons who must access the site. They
should read this report and be aware of the potential hazards with regards to RF
and MPE limits.
Additional Information
Additional RF information is available by visiting both www.Sitesafe.com and
www.fcc.gov/oet/rfsafety. OSHA has additional information available at:
http://www.osha-slc.gov/SLTC/radiofrequencyradiation.
200 N. Glebe Road• Suite 1000 • Arlington, VA 22203-3728
703.276.1100 • lnfo@slfesafe.com
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