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Activation Report 417704 SF CUPERTINO 014 10032022– Activation Report – Verizon Wireless • Node No. 417704 “SF CUPERTINO 014” 10110 North De Anza Boulevard • Cupertino, California M8FP Page 1 of 3 ©2022 Statement of Hammett & Edison, Inc., Consulting Engineers The firm of Hammett & Edison, Inc., Consulting Engineers, has been retained on behalf of Verizon Wireless, a wireless telecommunications carrier, to evaluate the node located near 10110 North De Anza Boulevard in Cupertino, California, compliance with appropriate guidelines limiting human exposure to radio frequency (“RF”) electromagnetic fields. Executive Summary Verizon had installed antennas above the light pole sited in the public right-of-way near 10110 North De Anza Boulevard 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 C-Band 3,700 MHz 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 2.9 700 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 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 – Activation Report – Verizon Wireless • Node No. 417704 “SF CUPERTINO 014” 10110 North De Anza Boulevard • Cupertino, California M8FP Page 2 of 3 ©2022 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 September 23, 2022, a non-holiday weekday. Verizon had installed two small panel antennas* about three stories above ground on top of the light pole sited in the public right-of-way on the east side of North De Anza Boulevard in Cupertino, between the church at 10110 North De Anza Boulevard and the two-story residence at 10141 Parlett Place. There were observed no other wireless telecommunications base stations located at or next to the site. Measurement Results The measurement equipment used was Narda Type NBM-520 Broadband Field Meter with Types EA-5091 and EF-6092 Isotropic Electric Field Probes (Serial Nos. 01291 and C-0223, respectively). The meters and probes were under current calibration. Measurements were made from a bucket-truck in front of the antenna 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 antenna was less than the applicable public limit. The maximum power density level observed for a person at ground near the site was 0.0026 mW/cm2, which is 1.3% of the most restrictive public limit, due in part to the base station on the roof of the four-story office building at 10101 North De Anza Boulevard. 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 one residence within 100 feet of the site, as described in the attached Declaration. There was no response, so no such testing was conducted. It is expected that exposure levels in the residence would have been well below the public limit. * The cylindrical antenna also proposed for this installation has reportedly been deleted from the design. – Activation Report – Verizon Wireless • Node No. 417704 “SF CUPERTINO 014” 10110 North De Anza Boulevard • Cupertino, California M8FP Page 3 of 3 ©2022 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, 2023. 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. William F. Hammett, P.E. 707/996-5200 October 3, 2022 FCC Guidelines Figure 1 1000 100 10 1 0.1 0.1 1 10 100 103 104 105 Occupational Exposure Public Exposure PCS CellFM Po w e r De n s i t y (m W / c m 2) 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-, “SafetyLevels with Respect to Human Exposure to &MFDUSJD .BHOFUJD BOE Electromagnetic Fields, )[ to300 GHz,” includes similar limits. These limits apply for continuous exposures from all sources andare intended to provide a prudent margin of safety for all persons, regardless of age, gender, size, orhealth. 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 Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Equivalent Far-Field Power Density (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/ f2 180/ f2 30 – 300 61.4 27.5 0.163 0.0729 1.0 0.2 300 – 1,500 3.54 f 1.59 f f /106 f /238 f/300 f/1500 1,500 – 100,000 137 61.4 0.364 0.163 5.0 1.0 Frequency (MHz) +LJKHUOHYHOVDUHDOORZHGIRUVKRUWSHULRGVRIWLPHVXFKWKDWWRWDOH[SRVXUHOHYHOVDYHUDJHGRYHU VL[ RU WKLUW\ PLQXWHV IRU RFFXSDWLRQDO RU SXEOLF VHWWLQJV UHVSHFWLYHO\ GR QRW H[FHHG WKH OLPLWV DQG KLJKHU OHYHOV DOVR DUH DOORZHG IRU H[SRVXUHV WR VPDOO DUHDV VXFK WKDW WKH VSDWLDOO\ DYHUDJHG OHYHOV GR QRW H[FHHG WKH OLPLWV+DPPHWW  (GLVRQ KDV LQFRUSRUDWHG FRQVHUYDWLYH FDOFXODWLRQ IRUPXODV LQ WKH )&& 2IILFH RI (QJLQHHULQJ DQG 7HFKQRORJ\ %XOOHWLQ 1R  $XJXVW   IRUSURMHFWLQJ ILHOG OHYHOVLQ D FRPSXWHU SURJUDP FDSDEOH RI FDOFXODWLQJ DW WKRXVDQGV RI ORFDWLRQV RQ DQDUELWUDU\ JULG WKH WRWDOH[SHFWHG SRZHU GHQVLW\ IURP DQ\ QXPEHU RI LQGLYLGXDO UDGLR IUHTXHQF\ VRXUFHV7KH SURJUDP DOORZV IRU WKH LQFOXVLRQ RIXQHYHQ WHUUDLQ LQ WKH YLFLQLW\ DV ZHOO DV DQ\QXPEHURIQHDUE\EXLOGLQJVRIYDU\LQJ KHLJKWVWRREWDLQPRUHDFFXUDWHSURMHFWLRQV ©