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STRUCTURAL STEEL OBSERVATIONS REPORT <br />Terracon <br />Report Number: M7241892.0002 <br />Service Date: 12/31/24 <br />20225 Cedar Valley Rd Ste 110 <br />Report Date: 01/02/25 <br />Lynnwood, WA 98036-6365 <br />Task: Inspection Services <br />425-742-9360 <br />Client Project <br />MacDonald -Miller Facility Solutions Inc TEC Gunderson Humidifier <br />Replace <br />Attn: Ryan Miller 3927 Rucker Ave <br />17930 International Blvd, Suite 120 Everett, WA 98201 <br />Seatac, WA 98188 <br />Project Number: M7241892 <br />Permit No: M2409-076 <br />General Information <br />Ryan with MacDonald Miller requested Terracon be on site for the following services: welding observation. <br />Structural steel is being constructed by <br />MacDonald Miller. The results of observation(s) for today were reported to Ryan with MacDonald Miller . <br />The construction documents referenced for this observation include: Structural plans dated 10/30/2024. <br />Welding Observation <br />Welding was performed prior to Terracon's arrival. Welding procedures have been reviewed. Welder qualifications have been reviewed. <br />Inspection Elevation Connection Type of Referenced <br />Applicable Compliance Status* <br />Type /Location Type Weld Documents <br />Code <br />Periodic (1) Roof, Grid 3/C.5- HSS tube steel Fillet S-1 <br />AWS D1.1 Complies <br />D.8 frame <br />Static <br />* See below for details <br />Compliance Statement <br />Based on our observations, structural steel construction activities at the above -referenced locations appeared to be completed in general <br />accordance with the project plans and specifications. <br />Vassallo, Mark <br />Terracon Field Representative <br />Services: Special Inspections / Materials Testing <br />Terracon Rep.: Mark Vassallo <br />Reported To: Ryan with MacDonald Miller <br />Contractor: MacDonald Miller <br />Report Distribution: <br />(1) MacDonald -Miller Facility Solutions (1) Terracon Consultants, Inc., Gale <br />Inc, Ryan Miller Noyes � <br />(1) Terracon Consultants, Inc., Michael Reviewed By: <br />Ma ff. 7� <br />Michael Mattox <br />Senior Project Field Manager <br />The tests were performed in general accordance with applicable ASTM, AASHTO, or DOT test methods. This report is exclusively for the use of the client indicated above <br />and shall not be reproduced except in full without the written consent of our company. Test results transmitted herein are only applicable to the actual samples tested at <br />the location(s) referenced and are not necessarily indicative of the properties of other apparently similar or identical materials. <br />DM027, 04-29-22 Rev.5 Page 1 of 1 <br />