7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Compliance Statement
Based on information provided by Verizon and predictive modeling, the JUNIPERO AVE installation proposed by Verizon will be compliant with Radiofrequency Radiation Exposure Limits of 47 C.F.R. §§ 1.1307(b)(3) and
1.1310. RF alerting signage and restricting access to the antenna to authorized personnel that have completed RF safety training is required for Occupational environment compliance. The proposed operation will not expose members of the General Public to hazardous levels of RF energy at ground level or in adjacent buildings.
Certification
I, Tim Alexander, am the reviewer and approver of this
report and 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, specifically in
accordance with FCC’s OET Bulletin 65. I have
reviewed this Radio Frequency Exposure Assessment
report and believe it to be both true and accurate to the best of my knowledge.
General Summary
The compliance framework is derived from the Federal Communications Commission (FCC) Rules and Regulations for preventing human exposure in excess of the applicable Maximum Permissible Exposure (“MPE”) limits. At any location at this site, the power density resulting from each transmitter may be expressed as a percentage of the frequency-specific limits and added to determine if 100% of the exposure limit has been exceeded. The FCC Rules define two tiers of permissible exposure differentiated by the situation in which the exposure takes place and/or the status of the individuals who are subject to exposure. General Population / Uncontrolled exposure limits apply to those situations in which persons may not be aware of the presence of electromagnetic energy, where exposure is not employment-related, or where persons cannot exercise control over their exposure. Occupational / Controlled exposure limits apply to situations in which persons are exposed as a consequence of their employment, have been made fully aware of the potential for exposure, and can exercise control over their exposure. Based on the criteria for these classifications, the FCC General Population limit is considered to be a level that is safe for continuous exposure time. The FCC General Population limit is 5 times more restrictive than the Occupational limits.
Radio Frequency Emissions Compliance Report for Verizon Site Name: JUNIPERO AVE Site Structure Type: Monopalm
Address: 2766 Saint Louis Avenue Latitude: 33° 48' 26.579"N Signal Hill, CA 90755 Longitude: 118° 9' 57.780"W
Report Date: November 5, 2024 Project: NSB
REGIST ERED
PROFESSIO NA L ENGINEE R
E L E
C T R I C A L
No. E18344
S T A T E O F C A L IFOR NIA
T IM
AL
EXANDER
E L E
C T R I C A L
S T A
NIA
Exp, 31 MAR 2026 SIGNED, 5 NOV 2024
Attachment F
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Table 1: FCC Limits
Frequency
(MHz)
Limits for General Population/ Uncontrolled Exposure Limits for Occupational/ Controlled Exposure Power Density
(mW/cm2)
Averaging Time
(minutes)
Power Density
(mW/cm2)
Averaging Time
(minutes)
30-300 0.2 30 1 6
300-1500 f/1500 30 f/300 6
1500-100,000 1.0 30 5.0 6
f=Frequency (MHz)
In situations where the predicted MPE exceeds the General Population threshold in an accessible area as a result of emissions from multiple transmitters, FCC licensees that contribute greater than 5% of the aggregate MPE share responsibility for mitigation.
Based on the computational guidelines set forth in FCC OET Bulletin 65, Waterford Consultants, LLC has developed software to predict the overall Maximum Permissible Exposure possible at any location given the spatial orientation and operating parameters of multiple RF sources. The power density in the Far Field of an RF source is specified by OET-65 Equation 5 as follows:
𝑆 =
𝐸𝐼𝑅𝑃
4⋅𝜋⋅𝑅2
(mW/cm2)
where EIRP is the Effective Radiated Power relative to an isotropic antenna and R is the distance between the antenna and point of study. Additionally, consideration is given to the manufacturers’ horizontal and vertical antenna patterns as well as radiation reflection. At any location, the predicted power density in the Far Field is the spatial average of points within a 0 to 6-foot vertical profile that a person would occupy. Near field power density is based on OET-65 Equation 20 stated as 𝑆 = (
180
𝜃𝐵𝑊
) ⋅
100 ⋅ 𝑃𝑖𝑛
𝜋 ⋅ 𝑅 ⋅ ℎ
(mW/cm2)
where Pin is the power input to the antenna, BW is the horizontal pattern beamwidth and h is the aperture length.
Some antennas employ beamforming technology where RF energy allocated to each customer device is dynamically directed toward their location. In the analysis presented herein, predicted exposure levels are based on all beams at full utilization (i.e. full power) simultaneously focused in any direction. As this condition is unlikely to occur, the actual power density levels at ground and at adjacent structures are expected to be less that the levels reported below. These theoretical results represent maximum-case predictions as all RF emitters are assumed to be operating at 100% duty cycle.
For any area in excess of 100% General Population MPE, access controls with appropriate RF alerting signage must be put in place and maintained to restrict access to authorized personnel. Signage must be posted to be visible upon approach from any direction to provide notification of potential conditions within these areas.
Subject to other site security requirements, occupational personnel should be trained in RF safety and equipped with personal protective equipment (e.g. RF personal monitor) designed for safe work in the vicinity of RF emitters. Controls such as physical barriers to entry imposed by locked doors, hatches and ladders or other access control mechanisms may be supplemented by alarms that alert the individual and notify site management of a breach in access control. Waterford Consultants, LLC recommends that any work activity in these designated areas or in front of any transmitting antennas be coordinated with all wireless tenants.
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Analysis
Verizon proposes the following installation at this location:
• INSTALLATION OF (12) VERIZON PANEL ANTENNAS (4 PER SECTOR) • INSTALLATION OF (9) VERIZON RADIOS (3 PER SECTOR)
The antennas will be mounted on a Monopalm with centerlines 65’, 67.8’, and 68.7’ for all Antennas above ground level for all sectors. Proposed antenna operating parameters are listed in Appendix A. Other appurtenances such as GPS antennas, RRUs and hybrid cable below the antennas are not sources of RF emissions. T-Mobile antennas are known to be operating in the vicinity of this site.
Figure 1: Antenna Locations
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Power density decreases significantly with distance from any antenna. The Panel-type antenna to be employed at this site are highly directional by design and the orientation in azimuth and mounting elevation, as documented, serves to reduce the potential to exceed MPE limits at any location other than directly in front of the antennas. For accessible areas at ground level, the maximum predicted power density level resulting from all Verizon operations is 21.01% of the FCC General Population limits. Incident at Utility Pole 1 depicted in Figures, the maximum predicted power density level resulting from all Verizon operations is 71.84% of the FCC General Population limits (Figure 2.2). The proposed operation will not expose members of the General Public to hazardous levels of RF energy at ground level or in adjacent Structures.
On the Monopalm in front of the antennas, predicted MPE levels will exceed the FCC General Population limits within 90 feet in front of the antennas and within 25 feet below the antennas. The maximum predicted power density level resulting from all Verizon operations directly in front of the antennas is 15916.06% of the FCC General Population limits (3183.212% of the FCC Occupational limits). Waterford Consultants, LLC recommends posting no RF alerting signage is necessary due to emissions on the Ground Level not exceeding General Population limits. This recommendation is depicted in Figure 3. Any work activity in front of transmitting antennas should be coordinated with Verizon.
The following plots show the cumulative spatial average predicted power density levels in the reference plane indicated as a percentage of the General Public Limits. Please note that 100% of the General Public Limits corresponds to 20% of the Occupational Limits.
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com All Transmitters
Figure 1.1: Antenna Level
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Figure 1.2: All Levels
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Verizon Transmitters Only
Figure 2.1: Antenna Level
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Figure 2.2: All Levels
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Figure 2.3: Elevation Level
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Compliance Requirement Diagram (Access Location)
N/A
Proposed Marker Existing Signs/Marker
Figure 3: Mitigation Recommendations
Recommendations
N/A
JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Appendix A: Operating Parameters Considered in this Analysis Ant
#
Carrier Manufacturer Antenna model Type EDT
(deg)
Band
(MHz)
Az
(deg)
MDT
(deg)
HBW
(°)
Length
(ft)
Gain
(dBd)
TPO
(W) Paths Attenuation (dB)
Line
Loss
(dB)
Other
Loss
(dB)
ERP
(W)
Antenna
Centerline
Ground
Level (0ft)
A1 Verizon ERICSSON AIR6419 Panel SON 3700 70 0 11 2.4 23.45 320 64 0 0 0 70818.96 67.8 A2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 700 70 0 65 8 13.58 106.9 2 0 0 0.5 2438.82 65 A2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 850 70 0 62 8 13.73 106.9 2 0 0 0.5 2524.53 65 A2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 1900 70 0 66 8 15.83 285.2 4 0 0 0.5 10918.17 65 A3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 700 70 0 65 8 13.58 106.9 2 0 0 0.5 2438.82 65 A3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 850 70 0 62 8 13.73 106.9 2 0 0 0.5 2524.53 65 A3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 2100 70 0 62 8 16.38 142.6 4 0 0 0.5 6196.11 65 A3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 2100_3 70 0 62 8 16.38 142.6 4 0 0 0.5 6196.11 65 A4 Verizon ERICSSON KRE105281 Switched Beam 8 3600 70 0 64 1 9.36 20 4 0 0 0 172.59 68.7 B1 Verizon COMMSCOPE AIR6419 Panel SON 3700 190 0 11 2.4 23.45 320 64 0 0 0 70818.96 67.8 B2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 700 190 0 65 8 13.58 106.9 2 0 0 0.5 2438.82 65 B2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 850 190 0 62 8 13.73 106.9 2 0 0 0.5 2524.53 65 B2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 1900 190 0 66 8 15.83 285.2 4 0 0 0.5 10918.17 65 B3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 700 190 0 65 8 13.58 106.9 2 0 0 0.5 2438.82 65 B3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 850 190 0 62 8 13.73 106.9 2 0 0 0.5 2524.53 65 B3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 2100 190 0 62 8 16.38 142.6 4 0 0 0.5 6196.11 65 B3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 2100_3 190 0 62 8 16.38 142.6 4 0 0 0.5 6196.11 65 B4 Verizon ERICSSON KRE105281 Switched Beam 8 3600 190 0 64 1 9.36 20 4 0 0 0 172.59 68.7 G1 Verizon ERICSSON AIR6419 Panel SON 3700 280 0 11 2.4 23.45 320 64 0 0 0 70818.96 67.8 G2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 700 280 0 65 8 13.58 106.9 2 0 0 0.5 2438.82 65 G2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 850 280 0 62 8 13.73 106.9 2 0 0 0.5 2524.53 65 G2 Verizon COMMSCOPE NHH-65C-R2B Panel SON 1900 280 0 66 8 15.83 285.2 4 0 0 0.5 10918.17 65 G3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 700 280 0 65 8 13.58 106.9 2 0 0 0.5 2438.82 65 G3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 850 280 0 62 8 13.73 106.9 2 0 0 0.5 2524.53 65 G3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 2100 280 0 62 8 16.38 142.6 4 0 0 0.5 6196.11 65 G3 Verizon COMMSCOPE NHH-65C-R2B Panel SON 2100_3 280 0 62 8 16.38 142.6 4 0 0 0.5 6196.11 65 G4 Verizon ERICSSON KRE105281 Switched Beam 8 3600 280 0 64 1 9.36 20 4 0 0 0 172.59 68.7 A1 TMO Unknown Unknown Panel - 600 70 0 72 6 13.27 71.3 2 0 0 0.5 1513.87 31 A1 TMO Unknown Unknown Panel - 700 70 0 67 6 13.68 71.3 2 0 0 0.5 1663.75 31 A1 TMO Unknown Unknown Panel - 1900 70 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 A1 TMO Unknown Unknown Panel - 2100 70 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 A2 TMO Unknown Unknown Panel - 1900 70 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 A2 TMO Unknown Unknown Panel - 2100 70 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 A3 TMO Unknown Unknown Panel - 1900 70 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 A3 TMO Unknown Unknown Panel - 2100 70 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 B1 TMO Unknown Unknown Panel - 600 190 0 72 6 13.27 71.3 2 0 0 0.5 1513.87 31 B1 TMO Unknown Unknown Panel - 700 190 0 67 6 13.68 71.3 2 0 0 0.5 1663.75 31 B1 TMO Unknown Unknown Panel - 1900 190 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 B1 TMO Unknown Unknown Panel - 2100 190 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 B2 TMO Unknown Unknown Panel - 1900 190 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 B2 TMO Unknown Unknown Panel - 2100 190 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 JUNIPERO AVE– NSB 11.05.2024
7430 New Technology Way, Suite 150 Frederick, Maryland 21703 (703) 596-1022 Phone www.waterfordconsultants.com Ant
#
Carrier Manufacturer Antenna model Type EDT
(deg)
Band
(MHz)
Az
(deg)
MDT
(deg)
HBW
(°)
Length
(ft)
Gain
(dBd)
TPO
(W) Paths Attenuation (dB)
Line
Loss
(dB)
Other
Loss
(dB)
ERP
(W)
Antenna
Centerline
Ground
Level (0ft)
B3 TMO Unknown Unknown Panel - 1900 190 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 B3 TMO Unknown Unknown Panel - 2100 190 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 G1 TMO Unknown Unknown Panel - 600 280 0 72 6 13.27 71.3 2 0 0 0.5 1513.87 31 G1 TMO Unknown Unknown Panel - 700 280 0 67 6 13.68 71.3 2 0 0 0.5 1663.75 31 G1 TMO Unknown Unknown Panel - 1900 280 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 G1 TMO Unknown Unknown Panel - 2100 280 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 G2 TMO Unknown Unknown Panel - 1900 280 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 G2 TMO Unknown Unknown Panel - 2100 280 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31 G3 TMO Unknown Unknown Panel - 1900 280 0 65 6 15.31 142.6 4 0 0 0.5 4843.05 31 G3 TMO Unknown Unknown Panel - 2100 280 0 55 6 17.64 142.6 4 0 0 0.5 8281.70 31