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Activation Report 474594 SF Cupertino 099 12192023 — Activation Report — Verizon Wireless • Node No. 474594 "SF Cupertino 099" 10618 North Blaney Avenue • Cupertino, California Statement of Hammett & Edison, Inc., Consulting Engineers The firm of Hammett & Edison, Inc., Consulting Engineers, has been retained on behalf of Verizon Wireless a personal wireless telecommunications carrier, to evaluate the node located at 10618 North Blaney Avenue in Cupertino, California, compliance with appropriate guidelines limiting human exposure to radio frequency ("RF") electromagnetic fields. Executive Summary Verizon had installed three antennas inside a cylindrical shroud above the light pole sited in the public right-of-way near 10618 North Blaney Avenue in Cupertino. All exposure levels under the existing conditions for anyone in publicly accessible areas nearby were well below the federal standard. Prevailing Exposure Standard The U.S. Congress requires that the Federal Communications Commission ("FCC") evaluate its actions for possible significant impact on the environment. A summary of the FCC's exposure limits is shown in Figure 1. 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. The most restrictive limit for exposures of unlimited duration at several wireless service bands are as follows: Transmit "Uncontrolled" Occupational Limit Wireless Service Band Frequency Public Limit (5 times Public) Microwave (point-to-point) 1-80 GHz 1.0 mW/cm2 5.0 mW/cm2 Millimeter-wave 24-47 1.0 5.0 Part 15 (WiFi & other unlicensed) 2-6 1.0 5.0 C-Band 3,700 MHz 1.0 5.0 CBRS (Citizens Broadband Radio) 3,550 1.0 5.0 BRS (Broadband Radio) 2,490 1.0 5.0 WCS (Wireless Communication) 2,305 1.0 5.0 AWS (Advanced Wireless) 2,110 1.0 5.0 PCS (Personal Communication) 1,930 1.0 5.0 Cellular 869 0.58 2.9 SMR(Specialized Mobile Radio) 854 0.57 2.85 700 MHz 716 0.48 2.4 600 MHz 617 0.41 2.05 [most restrictive frequency range] 30-300 0.20 1.0 General Facility Requirements Wireless nodes typically consist of two distinct parts: the electronic transceivers (also called "radios") that are connected to a central "hub" (which in turn are connected to the traditional wired telephone HEHAMMETT&EDISON,INC. CONSULTING ENGINEERS W7UQ SAN FRANCISCO ©2023 Page ] of 3 — Activation Report — Verizon Wireless • Node No. 474594 "SF Cupertino 099" 10618 North Blaney Avenue • Cupertino, California lines), and the passive antenna(s) that send the wireless signals created by the radios out to be received by individual subscriber units. The radios are often located on the same pole as the antennas and are connected to the antennas by coaxial cables. Because of the short wavelength of the frequencies assigned by the FCC for wireless services, the antennas require line-of-sight paths for their signals to propagate well and so are installed at some height above ground. The antennas are designed to concentrate their energy toward the horizon, with very little energy wasted toward the sky or the ground. This means that it is generally not possible for exposure conditions to approach the maximum permissible exposure limits without being physically very near the antennas. Site Description The site was visited by Mr. Scott Walthard, a qualified field technician employed by Hammett & Edison, Inc., during normal business hours on November 29, 2023, a non-holiday weekday. Verizon had installed a small cylindrical antenna and two small panel antennas about three stories above ground on top of the municipal light pole located in the public right-of-way behind the two-story residence at 10618 North Blaney Avenue in Cupertino There were observed no other wireless telecommunications base stations located at or next to the site. Measurement Results The measurement equipment used was a Narda Type NBM-520 Broadband Field Meter with Type EA-5091 and EF-6092 Isotropic Electric Field Probes (Serial Nos. 01035 and C-0223, respectively). The meter and probes were under current calibration. Measurements were made from a bucket-truck in front of the antennas, and at ground near the site. At each test point, the measurement results were compared with applicable FCC standards. The maximum power density level observed beyond 1 foot from the antennas was less than the applicable public limit. The maximum power density level observed for a person at ground near the site was less than 0.00014 mW/cm2, which is 0.070% of the most restrictive public limit. The three-dimensional perimeter of RF power density levels equal to the FCC standard for uncontrolled areas did not extend into any uncontrolled areas. Dwelling visit Notices of testing were delivered by registered U.S. Mail to the three dwelling units within 100 feet of the site, as described in the attached Declaration. Additional measurements were taken on December 7, 2023, by the undersigned engineer, at the request of one respondent. The measurement equipment used was a Narda Type NBM-520 Broadband Field Meter with Type EF-6092 Isotropic Electric Field Probe (Serial No. C-0223). The highest ambient RF exposure level observed anywhere at that residence was less than 0.00014 mW/cm2, which is 0.014% of the applicable public limit. HEHAMMETT&EDISON,INC. CONSULTING ENGINEERS W7UQ SAN FRANCISCO ©2023 Page 2 of 3 — Activation Report — Verizon Wireless - Node No. 474594 "SF Cupertino 099" 10618 North Blaney Avenue - Cupertino, California No Recommended Mitigation Measures Access to the antennas was restricted by their mounting location and height. Since exposure levels in publicly accessible areas were found to be below the applicable public limit, no other access controls or signs are required to meet FCC public guidelines. The operation can be considered intrinsically compliant with the FCC occupational guidelines. Explanatory signs were posted on the pole below the antennas. Conclusion Based upon the information and analysis above, it is the undersigned's professional opinion that this Verizon Wireless node, as installed and operating at the time of the measurements, complies with the FCC standards for limiting public exposure in uncontrolled areas to radio frequency energy and, therefore, does not for this reason cause a significant impact on the environment. Authorship The undersigned author of this statement is a qualified Professional Engineer, holding California Registration Nos. E-13026 and M-20676, which expire on June 30, 2025. This work has been carried out under his direction, and all statements are true and correct of his own knowledge except, where noted, when data has been supplied by others, which data he believes to be correct. QgpFESS/p,�,_ - CIO3 E 13028 Z William F. Ham tt, P.E. M-20878 �Tt �1 707/996-5200 December 19, 2023 �•6-30-2025 �c #FCTR�GP� Q+ 4# CFfAN�'� �F CAS 4 HAMMETT&EDISON,INC. CONSULTING ENGINEERS W7UQ SANFRANCISCO ©2023 Page 3 of 3 FCC Radio Frequency Protection Guide The U.S. Congress required (1996 Telecom Act) the Federal Communications Commission ("FCC") to adopt a nationwide human exposure standard to ensure that its licensees do not, cumulatively, have a significant impact on the environment. The FCC adopted the limits from Report No. 86, "Biological Effects and Exposure Criteria for Radiofrequency Electromagnetic Fields," published in 1986 by the Congressionally chartered National Council on Radiation Protection and Measurements ("NCRP"). Separate limits apply for occupational and public exposure conditions, with the latter limits generally five times more restrictive. The more recent standard, developed by the Institute of Electrical and Electronics Engineers IEEE C95.1-2019, "Safety Levels with Respect to Human Exposure to Electric, Magnetic, and Electromagnetic Fields, 0 Hz to 300 GHz," includes similar limits. These limits apply for continuous exposures from all sources and are intended to provide a prudent margin of safety for all persons, regardless of age, gender, size, or health. As shown in the table and chart below, separate limits apply for occupational and public exposure conditions, with the latter limits (in italics and/or dashed)up to five times more restrictive: Frequency Electromagnetic Fields (f is frequency of emission in MHz) Applicable Electric Magnetic Equivalent Far-Field Range Field Strength Field Strength Power Density (MHz) (V/m) (A/m) (mW/CM2) 0.3— 1.34 614 614 1.63 1.63 100 100 1.34— 3.0 614 823.8/f 1.63 2.19/f 100 180/f2 3.0— 30 1842/f 823.8/f 4.89/f 2.19/f 900/f z 180/f z 30— 300 61.4 27.5 0.163 0.0729 1.0 0.2 300— 1,500 3.54�f 1.59ff 4f/106 Tf1238 f/300 f11500 1,500— 100,000 137 61.4 0.364 0.163 5.0 1.0 1000 � Occupational Exposure 100 PCs o10 FM Cell 0.1 Public Exposure 0.1 1 10 100 103 104 105 Frequency (MHz) Higher levels are allowed for short periods of time, such that total exposure levels averaged over six or thirty minutes, for occupational or public settings, respectively, do not exceed the limits, and higher levels also are allowed for exposures to small areas, such that the spatially averaged levels do not exceed the limits. Hammett & Edison has incorporated conservative calculation formulas in the FCC Office of Engineering and Technology Bulletin No. 65 (August 1997) for projecting field levels in a computer program capable of calculating, at thousands of locations on an arbitrary grid, the total expected power density from any number of individual radio frequency sources. The program allows for the inclusion of uneven terrain in the vicinity, as well as any number of nearby buildings of varying heights, to obtain more accurate projections. HAMMETT&EDISON,INC. CONSULTING ENGINEERS FCC Guidelines , SANFRANCISCO ©2023 Figure 1 DECLARATION OF MAILING I, Monique Vasquez, do hereby declare as follows: On November 14, 2023, I placed in the United States Mail (by registered mail) Notices of Testing to the residents in three residences located within 100 feet of the Verizon Wireless small cell located at 10618 North Blaney Avenue, Cupertino, as listed below, plus a copy to the City of Cupertino Public Works Department. I do hereby declare under penalty of perjury under the laws of the State of California that the foregoing is true and correct. Executed on this day November 14, 2023, at Sonoma, California. /'v) Signature L; L'a Administrative Assistant Title Site Code: 474594 "SF Cupertino 099" Addressees: Occupant Occupant 10614 North Blaney Avenue 10618 North Blaney Avenue Cupertino, CA 95014 Cupertino, CA 95014 Occupant 19996 Beekman Place Cupertino, CA 95014 City of Cupertino Public Works Department Attention: Mr. Chad Mosley 10300 Torre Avenue Cupertino, CA 95014 HAMMETT&EDISON,INC. CONSULTING ENGINEERS SAN FRANCISCO