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NON.IONIZING ELEGTROMAGNETIC EXPOSURE ANALYSIS.pdfNON -IONIZING ELECTROMAGNETIC EXPOSURE ANALYSIS ENGINEERING CERTIFICATION FOR PROJECT: NEW ANTENNA INSTALLATION SITE NAME: SEA HICKMAN PARK SITE ADDRESS: 10307 238TH STREET SW EDMONDS, WA 98020 DATE: October 20, 2014 PREPARED BY: �f Ulllr MORRISON HERSHFIELD 10900 NE 8th Street, Suite 810 Bellevue, WA 98004 425-451-1301 DEC, 10 2015 cpof"60 1'r" -2- Verizon Wireless Site SEA Hickman Park Vrww-111711'1 -3 - INTRODUCTION Morrison Hershfield has been retained by Verizon Wireless to evaluate the proposed Verizon Wireless telecommunications site as described below. Evaluation is for compliance with current Federal Communications Commission (FCC) and local rules regarding public exposure to radiofrequency (RF) electromagnetic fields (EMFs). PROJECT The proposed Verizon Wireless prosect consists of a new WCF (Wireless Communications Facility) to be located at 10307 238t' Street SW, Edmonds, WA 98020; Property parcel number 27033600301900. The planned installation will include the addition of new antennas as described below. These antennas will be mounted to a replacement wood pole at worst condition, 59.0' AGL to the centerline of the antennas. All antennas face outward and point directionally away. Therefore it is unlikely that anyone other than authorized RF workers could approach near enough to any of the transmit antennas to cause that person's RF exposure to exceed FCC limits. It is expected that RF exposure conditions near ground level at the site, and at all adjacent properties, due to the contributions from all transmitting antennas will be well below the FCC public exposure limit. PROPOSED EQUIPMENT Type of Service: Cellular CDMA, PCS, LTE, AWS, Antennas: Sector Alpha: Azimuth 350 Height 59' Description 1 Quintel QS6658-2 antenna Beta: Gamma: 110 230 59' 59' 1 Quintel QS6658-2 antenna .w ...... 1 1 Quintel QS6658-2 antenna Verizon Wireless Site SEA Hickman Park 11� .. 4 PROPOSED EQUIPMENT (cont) Maximum Power: 8000 watts CALCULATIONS Calculations for RF power densities near ground level are based on the "Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields, OET Bulletin 65" Edition 97-01, August 1997; issued by the Federal Communications Commission Office of Engineering & Technology. Compliance is determined by comparing RF field predictions with the general population/uncontrolled environment (i.e., "Public") Maximum Permissible Exposure limits (MPEs) allowed by the FCC rules, as specified in CFR 47 §1.1310. The following formula has been used to calculate the power densities at specific locations: S = 0.36 x ERP / R 2 Where: S = power density (mW/cm2) ERP = power in watts R = distance to the center of the radiation antenna (ft) Formula is based on Equation 9 on page 21 of OET Bulletin 65. It includes the effect of ground reflections. The Effective Radiated Power (ERP) depends on the vertical antenna pattern. THEORETICAL ANALYSIS All proposed transmit antennas are highly directional and project the majority of the transmitted RF energy horizontally and well above all nearby accessible areas. The following theoretical calculations predict the peak exposure condition for a six-foot person standing at the nearest approach to the transmit antennas. A six-foot tall person standing on ground level near the base of the antenna support or building would be at least approximately 53 feet below all of the proposed transmit antennas. Verizon Wireless Site SEA Hickman Park I Powell -5 - CONTRIBUTION OF VERIZON WIRELESS FACILITY TO RF EXPOSURE ENVIRONMENT Based on information provided by Verizon Wireless RF Engineers, the maximum ERP from any sector of the proposed Verizon Wireless facility will be less than or equal to 8000 watts with all channels activated. Thus the worst-case downward ERP is 80 watt (i.e., 1/100th of 100 watts) from the facility. By use of the power density formula previously described, with input values 80 watt downwards ERP, and a distance of 53 feet, the worst-case calculated power density at head height from the Verizon Wireless facility to a six-foot person standing at ground level is 0.01102528 MW/CM2. Verizon Wireless antennas will transmit and/or receive at different MHz frequency bands worst ease being the LTE at 700 MHz. The Public MPE limit for the LTE frequency transmitted by this facility is 0.467 mW/cm2. The worst-case calculated exposure condition resulting from the Verizon Wireless facility is the power density divided by the Public MPE limit = 2.19702% of the Public MPE limit. This worst-case calculated exposure level is well below the 100% FCC limit. The actual exposure conditions are likely to be many times less than this worst-case value and all ground level areas are expected to have exposure conditions less than the calculated Public MPE due to the proposed Verizon Wireless facility. OTHER CARRIERS The following are examples of wireless carriers providing service to the local area: ESMR 851-866 Mhz Nextel Cellular 869-894 Mhz AT&T PCS >1800 Mhz Sprint, T -Mobile, CONTRIBUTION OF OTHER EXISTING CARRIERS TO RF EXPOSURE ENVIRONMENT To the best of our knowledge and information, there will be no other carriers collocated on this structure at this time. 0 Verizon Wireless Site SEA Hickman Park FCC COMPLIANCE The general population/uncontrolled exposure near this facility, including persons at ground level, surrounding properties, inside and on existing structures will have RF exposure much lower than the "worst case" scenario, which is a small fraction of the MPE limit. Only, trained personnel will be allowed to access the Verizon Wireless antennas and equipment for maintenance operations. It shall be the responsibility of Verizon Wireless and/or its contractors to provide adequate occupational training making employees fully aware of the potential for RF exposure, and to exercise control over their exposure that is within their occupational/controlled limits. The FCC has determined that at sites where multiple wireless facilities are co -located, the responsibility for site -wide RF safety compliance is the shared responsibility of all licensees whose facilities produce exposure conditions greater than 5% of the applicable MPE exposure limit. Thus a new applicant is responsible for compliance (or submitting an environmental assessment) at a multiple -facility site only if the proposed facility, when considered alone, would produce exposure conditions in excess of 5% of the MPEs. Wireless facilities that produce less than 5% of the applicable MPE exposure limit at accessible locations are considered to be exempt from further study. As demonstrated in this report by worst-case exposure calculations, the proposed Verizon Wireless facility is not in a multi -facility environment. Therefore, pursuant to the Commission's rules no further calculations, measurements or other RF studies are required, and the proposed Verizon Wireless facility is presumed to be in compliance with the FCC's RF exposure rules. Because the proposed Verizon Wireless facility is in compliance with federal rules, it is also in compliance with local regulations concerning RF exposure. The following is the complete text of 47 U.S.C. § 332(c)(7)(B)(iv): "No State or local government or instrumentality thereof may regulate the placement, construction, or modification of personal wireless service facilities on the basis of the environmental effects of radio frequency emissions to the extent that such facilities comply with the Commission's regulations concerning such emissions. Verizon Wireless Site SEA Hickman Park,�M r I)�,�,���„ o Era CONCLUSIONS Based on these calculations, the proposed WCF will comply with current FCC and local rules and guidelines regarding human exposure to radio frequency electromagnetic fields. This conclusion is based solely on the comparison of predicted RF conditions in specific areas with the corresponding safe exposure limits set forth in the FCC rules. The FCC exposure limits are based on recommendations by federal and private entities with the appropriate expertise in human safety issues. To avoid any misunderstanding, I hereby state that, to the best of my knowledge, belief and professional judgment, this report represents an accurate appraisal of exposure to RF EM fields based upon careful evaluation to the extent reasonably possible. Respectfully Submitted For the Firm, Lance Cooke, PE Morrison Hershfield Corp. Verizon Wireless Site SEA Hickman Park Ve