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TEP is a family of companies licensed to provide different services in different jurisdictions. Depending on the jurisdiction, professional engineering and land <br />surveying services are provided by TEP OpCo LLC, a Delaware limited liability company, TEP Engineering, PLLC, a North Carolina professional limited liability <br />company, or M&H Engineering, PLLC, a New York professional limited liability company. General contractor services are provided by TEPDB OpCo LLC, a <br />Delaware limited liability company. We acquire the requisite licenses in each state. Additional information can be obtained from the company. <br />October 21, 2025 <br />Jon Maxwell <br />M Squared Wireless <br />1387 Calle Avanzado <br />San Clemente, CA 92673 326 Tryon Road • Raleigh • NC 27603 <br />(949) 391-6824 (919) 661-6351 • Structures@tepgroup.net <br />Subject: Appurtenance Mount Analysis <br />Carrier Designation: AT&T Mobility Reconfiguration <br />Site Number: CLL03413 <br />Site Name: Main / Dyer <br />FA Location Code:10086996 <br />IWM Job Number:WSLOS0068683 <br />Engineering Firm Designation: TEP Project Number: 272252.1169408 <br />Site Data: 2621 South Birch Street, Santa Ana, Orange County, CA 92707 <br />Latitude 33° 42' 42.20'', Longitude -117° 52' 11.30'' <br />60.0± Foot - Monopole Tower <br />52.0 Foot Mount Height - T-Arm Mount <br />Dear Jon Maxwell, <br />TEP is pleased to submit this “Appurtenance Mount Analysis” to determine the structural integrity of the <br />antenna mount on the above-mentioned tower. <br />The purpose of the analysis is to determine acceptability of the mount's stress level. Based on our analysis we <br />have determined the stress level for the mount structure, under the following load case, to be: <br />LC1: Existing + Proposed + Reserved Loading Sufficient Capacity* <br />Note: See Table 2 for the existing, proposed, and reserved loading <br />*Sufficient upon completion of the changes listed in the “Recommendations” section of this report <br />The analysis has been performed in accordance with the ANSI/TIA-222-H Structural Standard for Antenna <br />Supporting Structures, Antennas, and Small Wind Turbine Support Structures and the 2022 California Building <br />Code, and the AT&T Mount Technical Guidance – Revision 25. <br />All equipment proposed in this report shall be installed in accordance with the appurtenances listed in Table 2 <br />for the determined available structural capacity to be effective. <br />We at TEP appreciate the opportunity of providing our continuing professional services to you and M Squared <br />Wireless. If you have any questions or need further assistance on this or any other projects, please give us a <br />call. <br />Respectfully submitted by: <br />Adam M. Amortnont, P.E., S.E. <br />Mount Capacity <br />62.1%