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GENERAL OBSERVATION REPORT <br />Report Number: M7231375.0002 <br />Service Date: 08/01/23 <br />Report Date: 08/02/23 <br />Client <br />The Boeing Company <br />Attn: David Duffy <br />3003 W Casino Rd <br />Everett, WA 98204-1910 <br />Permit No.: B2306-009 (Demo Wall) <br />® rerracon <br />20225 Cedar Valley Rd Ste 110 <br />Lynnwood, WA 98036-6365 <br />425-742-9360 <br />Project <br />Boeing Everett Bldg 40-31 Prit Prat Relocation <br />3003 W Casino Rd <br />Everett, WA <br />Project Number: M7231375 <br />GENERAL INFORMATION <br />Went through Boeing Security to get a badge enroute to site meeting with the owner's representative, David <br />Duffy, KGM structural engineer, and the Washington Patriot Construction team. <br />Site Meeting <br />There has been some ground penetration radar work conducted to -date, and there are existing underground pipe <br />lines in the mat footing blueprint. The location of the mat footing may be relocated. The structural engineer would <br />like new sleeves installed at existing pipe work within the new mat footing blueprint. The existing concrete apron <br />slab has not been excavated to -date. Boeing will contract with Terracon-MLT geotechnical division for foundation <br />excavation observation. Discussed with engineer -of -record for adjusting reinforcing steel spacing between bars <br />and at sleeve penetrations for one -bar -diameter minimum cover. <br />Services: Special Inspections / Materials Testing <br />Mayes/Terracon Rep.: Todd Wirtz <br />Reported To: The Boeing Company <br />Contractor: Washington Patriot Construction <br />Report Distribution: <br />(1) The Boeing Company, David Duffy (1) City of Everett WA, Permit Services <br />(1) Mayes Testing Engineers, Inc, Donna (1) Mayes Testing Engineers, Inc, Todd Wirtz Reviewed By: <br />Pollard - - — - - <br />Barry Tuttle <br />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 and shall not be <br />reproduced except in full without the written consent of our company. Test results transmitted herein are only applicable to the actual samples tested at the location(s) referenced and are not <br />necessarily indicative of the properties of other apparently similar or identical materials. <br />DM010, 04-29-22 Rev.3 Page 1 of 1 <br />