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HomeMy WebLinkAboutExcertrpt from EMEAT&T Radio Frequency Safety Survey Report Prediction (RFSSRP) AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. Site Name: Aspen Highlands FA#: 10148150 USID: 113891 Site ID: COL04136 Address: 75 Prospector Road Aspen, Colorado 81611 County: Pitkin Latitude: 39.18160280 Longitude: -106.85698060 EBI Project Number: 6220005855 M-RFSC Name: Shad Rydalch Site Structure Type: Rooftop PACE#: MRUTH039693/ MRUTH039696/ MRUTH039698 Prepared For: AT&T Mobility, LLC c/o MD7, LLC 10590 West Ocean Air Drive, Suite 300 San Diego, CA 92130 Report Information: Report Writer: Christopher Ilgenfritz Report Date: November 13, 2020 CDs: 10148150_FCD_REV0_10.26.20 RFDS: 10148150_RFDSCOL04136-Aspen-Highlands_2020-LTE-Next- Carrier_LTE_RS067V_3755A0SX1J_10148150_113891_11-14-2019_Prel Compliance Statement: AT&T Mobility Compliance Statement: Based on the information collected, AT&T Mobility will be Compliant with FCC Rules and Regulations at the nearest walking surface if recommendations in the Compliance Summary are implemented. Site Name: Aspen Highlands Site USID: 113891 Site FA: 10148150 1 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. 1.0 EXECUTIVE SUMMARY EnviroBusiness Inc. (dba EBI Consulting) has been contracted by AT&T Mobility, LLC to conduct radio frequency electromagnetic (RF-EME) modeling for AT&T Site COL04136 located at 75 Prospector Road in Aspen, Colorado to determine RF-EME exposure levels from proposed AT&T wireless communications equipment at this site. As described in greater detail in Appendix A of this report, th e Federal Communications Commission (FCC) has developed Maximum Permissible Exposure (MPE) Limits for general public exposures and occupational exposures. This report summarizes the results of RF-EME modeling in relation to relevant FCC RF-EME compliance standards for limiting human exposure to RF- EME fields. This document addresses the compliance of AT&T’s transmitting facilities independently and in relation to all collocated facilities at the site. 1.1 SITE SUMMARY Recommended Mitigation at the Site: ▪ Access Point(s): o To reduce the risk of exposure and/or injury, EBI recommends that access to the rooftop or areas associated with the active antenna installation be restricted and secured where possible. ▪ Signage at AT&T Mobility Sectors: o A: Yellow CAUTION 2 signs posted below the antennas above the sloped roof. o B: Yellow CAUTION 2 signs posted below the antennas above the sloped roof. o C: Yellow CAUTION 2 signs posted below the antennas above the sloped roof. ▪ Barriers at AT&T Mobility Sectors: o A, B, and C: Barriers are not recommended for this site because the sloped roof significantly limits access by unauthorized persons to areas directly in front of the antennas. However, EBI recommends that AT&T and the landlord take additional measures to ensure that persons accessing the sloped roof (for example, roofers or other maintenance workers) are informed of areas where RF levels exceed the FCC general public limit and made aware that these areas must be avoided to maintain compliance with FCC requirements. Site Name: Aspen Highlands Site USID: 113891 Site FA: 10148150 2 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. Predictive Modeling Results: The maximum predictive power density generated by the antennas is approximately 5,782.36 percent of the FCC’s general public limit (1,156.47 percent of the FCC’s occupational limit) at the main sloped roof level. At ground level, the maximum predictive power density generated by the antennas is approximately 0.56 percent of the FCC’s general public limit (0.112 percent of the FCC’s occupational limit). Site Name: Aspen Highlands Site USID: 113891 Site FA: 10148150 3 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. Yellow CAUTION 2 signs posted below the antennas above the sloped roof. Existing Sign Proposed Sign Installed Sign Yellow CAUTION 2 signs posted below the antennas above the sloped roof. Yellow CAUTION 2 signs posted below the antennas above the sloped roof. 2.0 SIGNAGE AND MITIGATION PLAN Si t e N a m e : As p e n H i g h l a n d s Si t e U S I D : 11 3 8 9 1 Si t e F A : 10 1 4 8 1 5 0 4 AT & T P r o p r i e t a r y ( I n t e r n a l u s e o n l y ) . N o t f o r u s e o r d i s c l o s u r e o u t s i d e t h e A T & T c o m p a n i e s , e x c e p t u n d e r w r i t t e n a g r e e m e n t . ©2 0 20 AT & T I n t e l l e c t u a l p r o p e r t y . A l l r i g h t s r e s e r v e d . 3. 0 ANT E N N A INV E N T O R Y Ant # Operator Antenna Make Antenna Model Frequency (MHz) Azimuth (deg.) Mechanical Downtilt (deg.) Horizontal Beamwidth (Degrees) Aperture (feet) Power Input (Watts) Transmitter Count Antenna Gain (dBd) Total ERP (Watts) Total EIRP (Watts) 1 AT T PO W E R W A V E P6 5 -15 -XL H -RR 0 2 D T 8 5 0 85 0 20 0 64 4. 2 40 2 12 . 0 5 61 1 . 0 7 10 0 2 . 1 5 1 AT T PO W E R W A V E P6 5 -15 -XL H -RR 0 1 D T 1 9 0 0 19 0 0 20 0 64 4. 2 40 2 13 . 4 5 84 3 . 5 1 13 8 3 . 3 6 2 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 20 0 63 4. 0 40 4 10 . 7 5 16 2 9 . 7 5 26 7 2 . 7 8 2 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 20 0 63 4. 0 40 4 10 . 7 5 16 2 9 . 7 5 26 7 2 . 7 8 2 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 20 0 63 4. 0 25 2 10 . 7 5 50 9 . 3 0 83 5 . 2 4 2 AT T CC I TP A 6 5 R-BU 4 D 0 2 D T 8 5 0 85 0 20 0 65 4. 0 40 4 11 . 1 5 17 5 8 . 4 1 28 8 3 . 7 9 2 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 2 1 0 0 21 0 0 20 0 60 4. 0 45 4 14 . 4 5 42 2 9 . 3 4 69 3 6 . 1 2 3 AT T PO W E R W A V E P6 5 -15 -XL H -RR 0 2 D T 8 5 0 85 0 13 0 0 64 4. 2 40 2 12 . 0 5 61 1 . 0 7 10 0 2 . 1 5 3 AT T PO W E R W A V E P6 5 -15 -XL H -RR 0 1 D T 1 90 0 19 0 0 13 0 0 64 4. 2 40 2 13 . 4 5 84 3 . 5 1 13 8 3 . 3 6 4 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 13 0 0 63 4. 0 40 4 10 . 7 5 16 2 9 . 7 5 26 7 2 . 7 8 4 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 13 0 0 63 4. 0 40 4 10 . 7 5 16 2 9 . 7 5 26 7 2 . 7 8 4 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 13 0 0 63 4. 0 25 2 10 .7 5 50 9 . 3 0 83 5 . 2 4 4 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 8 5 0 85 0 13 0 0 65 4. 0 40 4 11 . 1 5 17 5 8 . 4 1 28 8 3 . 7 9 4 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 2 1 0 0 21 0 0 13 0 0 60 4. 0 45 4 14 . 4 5 42 2 9 . 3 4 69 3 6 . 1 2 5 AT T PO W E R W A V E P6 5 -15 -XL H -RR 0 2 D T 8 5 0 85 0 25 0 0 64 4. 2 40 2 12 . 0 5 61 1 . 0 7 10 0 2 . 1 5 5 AT T PO W E R W A V E P6 5 -15 -XL H -RR 0 1 D T 1 9 0 0 19 0 0 25 0 0 64 4. 2 40 2 13 . 4 5 84 3 . 5 1 13 8 3 . 3 6 6 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 25 0 0 63 4. 0 40 4 10 . 7 5 16 2 9 . 7 5 26 7 2 . 7 8 6 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 7 0 0 70 0 25 0 0 63 4. 0 40 4 10 . 7 5 16 2 9 . 7 5 26 7 2 . 7 8 6 AT T CC I TP A 6 5 R -BU 4D 0 2 D T 7 0 0 70 0 25 0 0 63 4. 0 25 2 10 . 7 5 50 9 . 3 0 83 5 . 2 4 6 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 8 5 0 85 0 25 0 0 65 4. 0 40 4 11 . 1 5 17 5 8 . 4 1 28 8 3 . 7 9 6 AT T CC I TP A 6 5 R -BU 4 D 0 2 D T 2 1 0 0 21 0 0 25 0 0 60 4. 0 45 4 14 . 4 5 42 2 9 . 3 4 69 3 6 . 1 2 7 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 8 5 0 85 0 20 0 61 4. 0 10 0 1 11 . 5 2 14 1 9 . 0 6 23 2 7 . 2 5 8 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 1 9 0 0 19 0 0 20 0 65 4. 0 10 0 1 14 . 6 5 29 1 7 . 4 3 47 8 4 . 5 8 9 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 8 5 0 85 0 13 5 0 61 4. 0 10 0 1 11 . 5 2 14 1 9 . 0 6 23 2 7 . 2 5 10 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 1 9 0 0 19 0 0 13 5 0 65 4.0 10 0 1 14 . 6 5 29 1 7 . 4 3 47 8 4 . 5 8 11 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 8 5 0 85 0 13 5 0 61 4. 0 10 0 1 11 . 5 2 14 1 9 . 0 6 23 2 7 . 2 5 12 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 1 9 0 0 19 0 0 13 5 0 65 4. 0 10 0 1 14 . 6 5 29 1 7 . 4 3 47 8 4 . 5 8 13 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 8 5 0 85 0 26 0 0 61 4. 0 10 0 1 11 . 5 2 14 1 9 . 0 6 23 2 7 . 2 5 Si t e N a m e : As p e n H i g h l a n d s Si t e U S I D : 11 3 8 9 1 Si t e F A : 10 1 4 8 1 5 0 5 AT & T P r o p r i e t a r y ( I n t e r n a l u s e o n l y ) . N o t f o r u s e o r d i s c l o s u r e o u t s i d e t h e A T & T c o m p a n i e s , e x c e p t u n d e r w r i t t e n a g r e e m e n t . ©2 0 20 AT & T I n t e l l e c t u a l p r o p e r t y . A l l r i g h t s r e s e r v e d . Ant # Operator Antenna Make Antenna Model Frequency (MHz) Azimuth (deg.) Mechanical Downtilt (deg.) Horizontal Beamwidth (Degrees) Aperture (feet) Power Input (Watts) Transmitter Count Antenna Gain (dBd) Total ERP (Watts) Total EIRP (Watts) 14 Un k n o w n GE N E R I C PA N E L 4 F T 0 0 D T 1 9 0 0 19 0 0 26 0 0 65 4. 0 10 0 1 14 . 6 5 29 1 7 . 4 3 47 8 4 . 5 8 • N o t e t h e r e ar e 2 AT & T pa n e l an t e n n a s pe r s e c t o r a t t h i s s i t e . F o r c l a r i t y , t h e d i f f e r e n t f r e q u e n c i e s f o r e a c h a n t e n n a a r e e n t e r e d o n s e p a ra t e l i n e s . • N o t e t h a t E B I u s e s a n a s s u m e d s e t o f a n t e n n a s p e c i f i c a t i o n s a n d p o w e r s f o r u n k n o w n a n d o t h e r c a r r i e r a n t e n n a s f o r m o d e l i n g pu r p o s e s . Si t e N a m e : As p e n H i g h l a n d s Si t e U S I D : 11 3 8 9 1 Si t e F A : 10 1 4 8 1 5 0 6 AT & T P r o p r i e t a r y ( I n t e r n a l u s e o n l y ) . N o t f o r u s e o r d i s c l o s u r e o u t s i d e t h e A T & T c o m p a n i e s , e x c e p t u n d e r w r i t t e n a g r e e m e n t . ©2 0 20 AT & T I n t e l l e c t u a l p r o p e r t y . A l l r i g h t s r e s e r v e d . An t # NA M E X Y An t e n n a Ra d i a t i o n Ce n t e r l in e Z-He i g h t M a i n Sl o p e d R o o f Z-He i g h t M i d Sl o p e d R o o f Z-He i g h t Lo w e r S l o p e d Ro o f Z-He i g h t Gr o u n d 1 AT T 16 1 . 3 83 . 5 62 . 5 3. 4 5. 9 17 . 9 60 . 4 2 AT T 16 6 . 2 84 . 6 62 . 5 3. 5 6. 0 18 . 0 60 . 5 3 AT T 10 3 . 4 13 1 . 5 62 . 5 3. 4 5. 9 17 . 9 60 . 4 4 AT T 10 0 . 1 13 4 . 0 62 . 5 3. 5 6. 0 18 .0 60 . 5 5 AT T 96 . 5 13 3 . 4 62 . 5 3. 4 5. 9 17 . 9 60 . 4 6 AT T 94 . 3 13 0 . 1 62 . 5 3. 5 6. 0 18 . 0 60 . 5 7 Un k n o w n 11 7 . 7 98 . 7 63 . 5 4. 5 7. 0 19 . 0 61 . 5 8 Un k n o w n 12 1 . 0 99 . 5 63 . 5 4. 5 7. 0 19 . 0 61 . 5 9 Un k n o w n 16 7 . 3 91 . 0 63 . 5 4. 5 7. 0 19 . 0 61 . 5 10 Un k n o w n 16 3 . 5 93 . 5 63 . 5 4. 5 7. 0 19 . 0 61 . 5 11 Un k n o w n 15 1 . 1 11 9 . 9 63 . 5 4. 5 7. 0 19 . 0 61 . 5 12 Un k n o w n 14 6 . 7 12 3 . 2 63 . 5 4. 5 7. 0 19 . 0 61 . 5 13 Un k n o w n 41 . 6 11 6 . 6 50 . 5 -8. 5 -6. 0 6. 0 48 . 5 14 Un k n o w n 39 . 1 11 3 . 0 50 . 5 -8. 5 -6. 0 6. 0 48 . 5 Site Name: Aspen Highlands Site USID: 113891 Site FA: 10148150 7 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. 4.0 WORST-CASE PREDICTIVE MODELING In accordance with AT&T’s RF Exposure policy, EBI performed theoretical modeling using RoofMaster™ software to estimate the worst-case power density at the site rooftop and ground-level and nearby rooftops resulting from operation of the antennas. For this report, EBI utilized antenna and power data provided by AT&T and compared the resultant worst- case MPE levels to the FCC’s occupational/controlled exposure limits outlined in OET Bulletin 65. The assumptions used in the modeling are based upon information provided by AT&T and information gathered from other sources. An unknown carrier also has antennas on the rooftop. Information about these antennas was included in the modeling analysis. Per AT&T’s corporate policy, the FCC’s general population limits are applicable to all rooftop sites, regardless of the level of access control. Based on worst-case predictive modeling, the worst-case emitted power density may exceed the FCC’s general public limit within approximately 46 feet of AT&T’s Sector A, B, and C antennas at the main sloped roof level. Modeling also indicates that the worst-case emitted power density may exceed the FCC’s occupational limit within approximately 18 feet of AT&T’s Sector A, B, and C antennas at the main sloped roof level. Modeling also indicates that the worst-case emitted power density may exceed ten times the FCC’s occupational limit within approximately 1 foot of AT&T’s Sector A, B, and C antennas at the main sloped roof level. At the nearest walking/working surfaces to the AT&T antennas on the main sloped roof level, the maximum power density generated by the AT&T antennas is approximately 5,782.35 percent of the FCC’s general public limit (1,156.47 percent of the FCC’s occupational limit). The composite exposure level from all carriers on this site is approximately 5,782.36 percent of the FCC’s general public limit (1,156.47 percent of the FCC’s occupational limit) at the nearest walking/working surface to each antenna. Based on worst-case predictive modeling, there are no areas at ground/street level related to the proposed AT&T antennas that exceed the FCC’s occupational or general public exposure limits at this site. At ground/street level, the maximum power density generated by the antennas is approximately 0.56 percent of the FCC’s general public limit (0.112 percent of the FCC’s occupational limit). There were also worst-case predicted exposures above the general public MPE in front of the unknown carrier antennas. Modeling indicates that the AT&T contribution to these areas is greater than 5% of the general public MPE and, as such, under FCC regulations, AT&T is responsible for these predicted exceedances. Microwave dish antennas are designed for point-to-point operations at the elevations of the installed equipment rather than ground-level coverage. Based on AT&T’s RF Exposure: Responsibilities, Procedures & Guidelines document, dated October 28, 2014, microwave antennas are considered compliant if they are higher than 20 feet above any accessible walking/working surface. There are no microwaves installed at this site. Site Name: Aspen Highlands Site USID: 113891 Site FA: 10148150 9 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. Mid Sloped Roof Level (54.5 feet AGL) Site Name: Aspen Highlands Site USID: 113891 Site FA: 10148150 12 AT&T Proprietary (Internal use only). Not for use or disclosure outside the AT&T companies, except under written agreement. ©2020 AT&T Intellectual property. All rights reserved. AT&T Contribution of More Than 5% of the FCC’s General Exposure RF Limit Note that the areas shown in purple are where AT&T antennas contribute more than 5% of the FCC’s general exposure RF limit. These do overlap areas in front of other carrier antennas exceeding the FCC’s general exposure RF limit as shown in Figure 1. Under FCC regulations, AT&T is therefore responsible for predicted exceedances of another carrier’s antennas.