SITE NAME: 853418 Rosemont LO C AT IO N : 370 Stevens Avenue Portland, Maine CO M P AN Y : U.S. Cellular June 25, 2015 NOTICE This work is based upon our best interpretation of available information. However, these data and their interpretation are constantly changing. Therefore, we do not warrant that any undertaking based on this report will be successful, or that others will not require further research or actions in support of this proposal or future undertaking. In the event of errors, our liability is strictly limited to replacement of this document with a corrected one. Liability for consequential damages is specifically disclaimed. Any use of this document constitutes an agreement to hold Lawrence Behr Associates, Inc. and its employees harmless and indemnify it for any and all liability, claims, demands, litigation expenses and attorneys fees arising out of such use. Work product documents released prior to account settlement remain the sole property of Lawrence Behr Associates, Inc. and must be returned on demand. Underlying work notes and data relating to this document remain the property of Lawrence Behr Associates, Inc. This document shall not be reproduced in whole or part without permission of Lawrence Behr Associates, Inc. Any dispute hereunder shall be adjudicated in North Carolina. Any use or retention of this document constitutes acceptance of these terms, the entire work product, and all charges associated therewith. COPYRIGHT © 2015 BY LAWRENCE BEHR ASSOCIATES, INC. GREENVILLE, NORTH CAROLINA EME AUDIT REPORT Site: 853418 Rosemont U.S. Cellular 370 Stevens Avenue Portland, Maine IN T RO DU CT IO N Lawrence Behr Associates, Inc. (LBA) has been retained by U.S. Cellular of Portland, Maine to audit compliance with Federal Communications Commission (FCC) guidelines for human exposure to radio frequency (RF) energy at this site. This audit provides a theoretical assessment of the maximum permissible exposure (MPE) limits for uncontrolled exposures around the U.S. Cellular antennas and includes photographs and annotated architectural drawings, where required. Our assessment included, where possible, an evaluation of nonU.S. Cellular transmitters that could contribute to the U.S. Cellular MPE limits in accessible areas. Site mitigation options have been assessed and recommendations made where the MPE could be exceeded in accessible areas. M E TH O DO LO G Y Using information provided by U.S. Cellular, LBA developed a database of the antenna systems and operating parameters. We then evaluated these systems for electromagnetic environmental (EME) impact potential. This EME assessment was conducted in accordance with FCC guidelines as outlined in OET Bulletin-651 using an industry standard computer model2. LBA personnel conducted field verification of existing antenna locations and made site measurements of all existing RF contributions to the site on June 24th, 2015. Measurements were performed using a Narda 8718 radiation meter with an 8742D isotropic probe. This system is considered an “industry standard” for making EME measurements. Measurements were taken as a percent of MPE for the general population/uncontrolled standard. The computer model was adjusted to reflect actual conditions at the site. An MPE limit of 1.0 milliwatt per square centimeter (mW/cm2) was used for both the U.S. Cellular 1930MHz and 2130MHz facilities. MPE limits for nearby antennae used by other tenants for various 1 Federal Communications Commission, Office of Engineering and Technology, Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields, OET Bulletin-65, Edition 97-01, August 1997. 2 RoofView™ Version 4.15, (1-1-2011) Richard Tell Associates, Inc. 1 non-PCS services were used as prescribed in OET Bulletin-65. Areas requiring mitigation, if any, are documented. The FCC guidelines define two separate tiers of exposure limits. As defined by the FCC, these limits are: General population/uncontrolled exposure. For FCC purposes, applies to human exposure to RF fields when the general public is exposed or in which persons who are exposed as a consequence of their employment may not be made fully aware of the potential for exposure or cannot exercise control over their exposure. Therefore, members of the general public always fall under this category when exposure is not employment-related. Occupational/controlled exposure. For FCC purposes, applies to human exposure to RF fields when persons are exposed as a consequence of their employment and in which those persons who are exposed have been made fully aware of the potential for exposure and can exercise control over their exposure. AS SE SS M E N T O F S I T E 85 34 18 R os e mo nt • This is an existing 70-foot tower on top of a 39-foot tall building at Deering High School. U.S. Cellular has existing antennas mounted on the tower. • For this study, we considered the entire accessible area to be a general population/ uncontrolled area as defined by the FCC. • The exposure to non-ionizing radiation at ground level produced by the U.S. Cellular transmit antennae, as shown in Appendix 1.1, MPE Ground Level Analysis Map, will not exceed the FCC MPE general population/uncontrolled limit. • The exposure to non-ionizing radiation at main roof top level produced by the U.S. Cellular transmit antennae, as shown in Appendix 1.2, MPE Main Roof Level Analysis Map, will not exceed the FCC MPE general population/uncontrolled limit. • U.S. Cellular antenna facilities will not contribute non-ionizing radiation exceeding 5% MPE to any other carriers where their limits are exceeded. • On site power density measurements were made June 24th, 2015, that demonstrate actual MPE levels taking into account all existing antennas. Measurements were taken at different locations as specified by U.S. Cellular. The locations are shown in Appendix 3.1, Measurement Locations Outside the Building and Appendix 3.2, Measurement Locations on the Roof. Measurement Locations Inside the Building are specified by room number and do not need a map.  The resulting levels are shown in Appendix 4.1, Measurement Level Chart Inside the Building, Appendix 4.2, Measurement Levels Outside the Building, and Appendix 4.3, Measurement Levels On the Roof. 2  Photographs are shown in Appendices 5.1 to 5.9, Photographs Inside Building, Appendices 6.1 to 6.15, Photographs Outside Building, and Appendices 7.1 to 7.26, Photographs on Roof. CO N CLU SI O N A N D RE CO M M E N D AT IO N S • This U.S. Cellular site is in compliance with the current FCC RF human exposure regulations. • LBA recommends that any worker attempting to service this antenna facility have RF awareness training and wear a personal RF monitor. • LBA recommends placement of RF signage in accordance with U.S. Cellular RF signage policy. • Procedures described in OET Bulletin-65 should be followed during the performance of work on or near the antenna facilities. June 25, 2015 Michael W. Hayden Director of Field Services 3 APPENDIX 1.1 MPE Analysis Map (Ground Level) U.S. Cellular Portland, Maine Based Upon FCC General Population/Uncontrolled MPE Limits Green <= 5%, Blue <= 50%, Yellow <= 100%, Red above 100% APPENDIX 1.2 MPE Analysis Map (Roof Level) U.S. Cellular Portland, Maine Based Upon FCC General Population/Uncontrolled MPE Limits Green <= 5%, Blue <= 50%, Yellow <= 100%, Red above 100% APPENDIX 2.1 Parameters (Ground Level) U.S. Cellular Portland, Maine Ant Num ID Name (MHz) Trans Trans Freq Pow er Count Pow er Calc (ft) dBd BWdth Mfg Model (ft) Z Type Aper Gain Pt Dir 1 U. S. Cellular Sec Alpha 1900.00000 30.0 2 60.0 EMS RR65-18-00DPL2 104.7 PANEL 4.7 15.4 65;350 2 U. S. Cellular Sec Beta 1900.00000 30.0 2 60.0 EMS RR65-18-00DPL2 104.7 PANEL 4.7 15.4 65;120 3 U. S. Cellular Sec Gam a 1900.00000 30.0 2 60.0 EMS RR65-18-00DPL2 104.7 PANEL 4.7 15.4 65;240 “BWdth PT Dir” is the horizontal bandwidth of the antenna and azimuth Note: "Z" height is to the base of antenna Site Operational Parameters APPENDIX 2.2 Parameters (Roof Level) U.S. Cellular Portland, Maine Ant (MHz) Trans Trans Freq Pow er Count Pow er U. S. Cellular Sec Alpha 1900.00000 30.0 2 2 U. S. Cellular Sec Beta 1900.00000 30.0 2 3 U. S. Cellular Sec Gam a 1900.00000 30.0 2 Num 1 ID Name Calc (ft) dBd BWdth Mfg Model (ft) Z Type Aper Gain Pt Dir 60.0 EMS RR65-18-00DPL2 65.7 PANEL 4.7 15.4 65;350 60.0 EMS RR65-18-00DPL2 65.7 PANEL 4.7 15.4 65;120 60.0 EMS RR65-18-00DPL2 65.7 PANEL 4.7 15.4 65;240 “BWdth PT Dir” is the horizontal bandwidth of the antenna and azimuth Note: "Z" height is to the base of antenna Site Operational Parameters APPENDIX 3.1 Measurement Locations Outside the Building US. Cellular Portland, Maine APPENDIX 3.2 Measurement Locations On the Roof U.S. Cellular Portland, Maine ROOF APPENDIX 4.1 Measurement Level Chart Inside the Building U.S. Cellular Portland, Maine U. S. Cellular - Site Rosemont (Inside) EXISTING LEVELS Readings taken 06-24-15 PERCENTAGE OF MPE (General Population Point Number 1 2 3 4 5 6 7 8 9 0.03% 1.07% 1.81% 1.92% 1.38% 10.00% 4.55% 10.40% 10.10% Point Location Room 305 point 1 Room 305 point 2 Room 306 Teachers Workroom Room 308 Walkway floor 3 Room 312 Walkway floor 2 Cafataria APPENDIX 4.2 Measurement Level Chart Outside the Building U.S. Cellular Portland, Maine U. S. Cellular - Site Rosemont (Outside) EXISTING LEVELS Map Readings taken Locations 06-24-15 PERCENTAGE OF MPE (General Population 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0.70% 0.20% 4.30% 0.20% 0.10% 0.30% 0.30% 0.10% 0.20% 0.10% 0.30% 1.30% 1.10% 1.20% 0.90% APPENDIX 4.3 Measurement Level Chart On the Roof U.S. Cellular Portland, Maine U. S. Cellular - Site Rosemont (roof) EXISTING LEVELS Map Readings taken Locations 06-24-15 PERCENTAGE OF MPE (General Population 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 11.30% 11.10% 11.10% 10.00% 11.30% 12.20% 13.30% 13.10% 13.20% 15.80% 16.60% 17.90% 15.20% 15.80% 15.20% 17.30% 15.50% 15.20% 15.80% 17.30% 16.10% APPENDIX 5.1 Photographs Inside Building U. 5. Cellular Portland, Maine Point 1 June 24, 2015 APPENDIX 5.2 APPENDIX 5.3 Photographs Inside Building U. 5. Cellular Portland, Maine Point 3 June 24, 2015 APPENDIX 5.4 Photographs Inside Building U. 5. Cellular Portland, Maine Point 4 June 24, 2015 APPENDIX 5.5 Photographs Inside Building U. 5. Cellular Portland, Maine Point 5 June 24, 2015 APPENDIX 5.6 Photographs Inside Building U. 5. Cellular Portland, Maine Point 6 June 24, 2015 APPENDIX 5.7 Photographs Inside Building U. 5. Cellular Portland, Maine Point 7 June 24, 2015 APPENDIX 5.8 Photographs Inside Building U. 5. Cellular Portland, Maine Point 8 June 24, 2015 APPENDIX 5.9 Photographs Inside Building U. 5. Cellular Portland, Maine Point 9 June 24, 2015 APPENDIX Photographs Outside Building U. 5. Cellular Portland, Maine Point 1 June 24, 2015 APPENDIX 6.2 Photographs Outside Building U. 5. Cellular Portland, Maine Point 2 June 24, 2015 APPENDIX 6.3 Photographs Outside Building U. 5. Cellular Portland, Maine Point 3 June 24, 2015 APPENDIX 6.4 Photographs Outside Building U. 5. Cellular Portland, Maine Point 4 June 24, 2015 APPENDIX 6.5 Photographs Outside Building U. 5. Cellular Portland, Maine Point 5 June 24, 2015 APPENDIX 6.6 Photographs Outside Building U. 5. Cellular Portland, Maine Point 6 June 24, 2015 APPENDIX 6.7 Photographs Outside Building U. 5. Cellular Portland, Maine Point 7 June 24, 2015 APPENDIX 6.8 Photographs Outside Building U. 5. Cellular Portland, Maine Point 8 June 24, 2015 APPENDIX 6.9 Photographs Outside Building U. 5. Cellular Portland, Maine Point 9 June 24, 2015 APPENDIX 6.10 Photographs Outside Building U.S. Cellular Portland, Maine Point 10 June 24, 2015 APPENDIX 6.11 Photographs Outside Building U.S. Cellular Portland, Maine Point 11 June 24, 2015 APPENDIX 6.12 Photographs Outside Building U.S. Cellular Portland, Maine Point 12 June 24, 2015 APPENDIX 6.13 Photographs Outside Building U.S. Cellular Portland, Maine Point 13 June 24, 2015 APPENDIX 6.14 Photographs Outside Building U.S. Cellular Portland, Maine Point 14 June 24, 2015 APPENDIX 6.15 Photographs Outside Building U.S. Cellular Portland, Maine Point 15 June 24, 2015 APPENDIX 7.1 Photographs On Roof U. 5. Cellular Portland, Maine Equipment Room June 24, 2015 APPENDIX 7.2 Photographs On Roof U. 5. Cellular Portland, Maine Door From Outside June 24, 2015 APPENDIX 7.3 Photographs On Roof U. 5. Cellular Portland, Maine Roof Access June 24, 2015 APPENDIX 7.4 Photographs On Roof U. 5. Cellular Portland, Maine Tower June 24, 2015 APPENDIX 7.5 Photographs On Roof U. 5. Cellular Portland, Maine Signage June 24, 2015 APPENDIX 7.6 Photographs On Roof U. 5. Cellular Portland, Maine Point 1 June 24, 2015 APPENDIX 7.7 Photographs On Roof U. 5. Cellular Portland, Maine Point 2 June 24, 2015 APPENDIX 7.8 Photographs On Roof U. 5. Cellular Portland, Maine Point 3 June 24, 2015 APPENDIX 7.9 Photographs On Roof U. 5. Cellular Portland, Maine Point 4 June 24, 2015 APPENDIX 7.10 Photographs On Roof U. 5. Cellular Portland, Maine Point 5 June 24, 2015 APPENDIX 7.11 Photographs On Roof U. 5. Cellular Portland, Maine Point 6 June 24, 2015 APPENDIX 7.12 Photographs On Roof U. 5. Cellular Portland, Maine Point 7 June 24, 2015 APPENDIX 7.13 Photographs On Roof U. 5. Cellular Portland, Maine Point 8 June 24, 2015 APPENDIX 7.14 Photographs On Roof U. 5. Cellular Portland, Maine Point 9 June 24, 2015 APPENDIX 7.15 Photographs On Roof U. 5. Cellular Portland, Maine Point 10 June 24, 2015 APPENDIX 7.16 Photographs On Roof U. 5. Cellular Portland, Maine Point 11 June 24, 2015 APPENDIX 7.17 Photographs On Roof U. 5. Cellular Portland, Maine Point 12 June 24, 2015 APPENDIX 7.18 Photographs On Roof U. 5. Cellular Portland, Maine Point 13 June 24, 2015 APPENDIX 7.10 Photographs On Roof U. 5. Cellular Portland, Maine Point 14 June 24, 2015 APPENDIX 7.20 Photographs On Roof U. 5. Cellular Portland, Maine Point 15 June 24, 2015 APPENDIX 7.21 Photographs On Roof U. 5. Cellular Portland, Maine Point 16 June 24, 2015 APPENDIX 7.22 Photographs On Roof U. 5. Cellular Portland, Maine Point 1 7 June 24, 2015 APPENDIX 7.23 Photographs On Roof U. 5. Cellular Portland, Maine Point 18 June 24, 2015 APPENDIX 7.24 Photographs On Roof U. 5. Cellular Portland, Maine Point 19 June 24, 2015 APPENDIX 7.25 Photographs On Roof U. 5. Cellular Portland, Maine Point 20 June 24, 2015 APPENDIX 7.26 Photographs On Roof U. 5. Cellular Portland, Maine Point 21 June 24, 2015