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<br /> <br />Memo <br />To: Jack Griffin <br />Bolton & Menk <br />From: Brian Lintgen <br />Minneapolis <br />Project/File: 173420153 Date: August 14, 2025 <br /> <br />Reference: Lake Elmo Well 2 PFAS WTP Final Completion Date <br />Due to manufacturing delays, the PFAS treatment vessels (supplied by the City, through AqueoUSVets) <br />were delayed. Magney Construction’s substantial completion date was revised from 5/30/2025 to 7/3/2025 <br />in Change Order No. 1 to account for this delay. Final Completion was originally 7/18/2025 (49 days <br />between substantial and final). <br />Although punchlist and O&M manuals are technically part of substantial completion, this work was not <br />completed until after the 7/3/2025 date (the plant was operating on 7/2/2025). The original intent of the <br />5/30/2025 and subsequent 7/3/2025 substantial completion date was to allow the City to provide compliant <br />drinking water to the residents as soon as physically possible. If punchlist and O&M manuals were to be <br />included in this date, it would have needed to be pushed out several weeks. This time is needed to compile <br />the punch list, receive and review manuals, and provide final walkthroughs. Any delay in the substantial <br />completion date to include these activities would have likely resulted in even further delays in providing <br />compliant drinking water. <br />The original 49 days in the contract from substantial to final completion is a reasonable amount of time for <br />the Owner and Engineer to compile a punchlist, the Contractor to complete the punchlist, the Contractor to <br />provide O&M manuals, the Engineer to review the O&M manuals, and the Contractor to provide closeout <br />paperwork. The original final completion date of 7/18/2025 remained the same in Change Order No. 1. This <br />date should have been revised to reflect the delays that were added to substantial completion. If the original <br />49 days between substantial and final were applied, the new final completion date should be 8/21/2025. <br />I recommend a final completion date of 8/21/2025 be included in Change Order No. 2. <br />Regards, <br />Stantec Consulting Services Inc. <br /> <br /> <br />Brian Lintgen PE (MN) <br />Senior Associate <br />Mobile: (320) 333-6825 <br />brian.lintgen@stantec.com <br />stantec.com