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HomeMy WebLinkAboutVW CA_SJ_CUPERTINO_420 RF Activation Report 01162026 (1)– Activation Report – Verizon Wireless • Small Cell No. CA_SJ_CUPERTINO_420 7995 Rainbow Drive • Cupertino, California T8D3 Page 1 of 3 ©2026 ..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 its small cell base station (No. CA_SJ_CUPERTINO_420) located near 7995 Rainbow Drive in Cupertino, California, compliance with appropriate guidelines limiting human exposure to radio frequency (“RF”) electromagnetic fields. Executive Summary Verizon had installed three small antennas high on the municipal light pole sited in the public right-of-way near 7995 Rainbow Drive 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 Small cells typically consist of two distinct parts: the electronic transceivers (also called “radios”) that are connected to the traditional wired telephone lines, and the antennas that send the wireless signals – Activation Report – Verizon Wireless • Small Cell No. CA_SJ_CUPERTINO_420 7995 Rainbow Drive • Cupertino, California T8D3 Page 2 of 3 ©2026 created by the radios out to be received by individual subscriber units. The radios are typically mounted on the support pole or placed in a cabinet at ground level, and they 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 January 10, 2026, a non-holiday. Verizon had installed a cylindrical antenna and directional antennas within a shroud on top of the municipal light pole located in the public right-of-way on the south side of Rainbow Drive in Cupertino, between the residences located at 21330 and 21350 Rainbow Drive, and across the street from the residence at 7995 Rainbow Drive. 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-0691 Isotropic Electric Field Probes (Serial Nos. 01035 and H-0087, respectively). The meters 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 0.00022 mW/cm2, which is 0.11 % 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 Visits Notices of Testing were delivered by registered US Mail to four residences within 100 feet of the site, as described in the attached Declaration; measurements will be taken on January 29, 2026, within the residences as requested by the respondents. It is expected that exposure conditions in the residences will also be well below the applicable limit. – Activation Report – Verizon Wireless • Small Cell No. CA_SJ_CUPERTINO_420 7995 Rainbow Drive • Cupertino, California T8D3 Page 3 of 3 ©2026 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 small cell base station, 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, 2027. 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 January 16, 2026 Exp. 6-30-2027Exp. 6-30-2027 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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©3 HAMMETT & EDISON, INC. CONSULTING ENGINEERS REGULATORY COMPLIANCEHE& DECLARATION OF MAILING I, Judith Paredes, do hereby declare as follows: On January 7, 2026, I placed in the United States Mail (by registered mail) Notices of Testing to the residents in four residences located within 100 feet of the Verizon Wireless small cell located near 7995 Rainbow Drive, 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 January 7, 2026, at Sonoma, California. ____________________________________ Signature Administrative Assistant Title Site Code: “CA_SJ_CUPERTINO_420” Addressees: Occupant Occupant 7985 Rainbow Drive 21330 Rainbow Drive Cupertino, CA 95014 Cupertino, CA 95014 Occupant Occupant 7995 Rainbow Drive 21350 Rainbow Drive Cupertino, CA 95014 Cupertino, CA 95014 City of Cupertino Public Works Department Attention: Mr. Chad Mosley 10300 Torre Avenue Cupertino, CA 95014