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w miv. Hwy s . C O M <br />AE2S has reviewed this remaining contingency balance and would offer the following <br />observations/considerations. <br />AE2S has received 192 submittals for this project. These submittals are intended to allow the <br />design team to review the final installation and scope of the various components of the project <br />prior to fabrication and installation. This process allows the team to work directly with the <br />contractor and the suppliers to make any final adjustments that are needed to accommodate the <br />equipment that was selected for the project. This is an important step in the construction process <br />because of the complicated nature of the facility and the variation in equipment options. <br />Completing this step significantly reduces the chances of change orders. In comparison with recent <br />projects of similar size and scope AE2S believes that a majority of the submittals have been <br />received for the project and the remaining submittals will be less significant in scope to the project. <br />The following projects were used for comparison. <br />a. Reference projects: <br />i. Shoreview WTP (8MGD iron and Manganese WTP) = 170 submittals <br />ii. Robbinsdale Lime Softening WTP (substantially more equipment and <br />complicated design) = 273 submittals <br />2. AE2S has a history of delivering projects of this nature with change orders being less <br />than 3% of the total project cost. The general construction contingency for this project <br />($950,000) is approximately 3.1% of the base construction cost of $30,578,500. For <br />reference, AE2S completed the following similar projects with the final costs as noted <br />below: <br />Project <br />Original Contract <br />Value <br />Total Change <br />Orders <br />Shoreview 8MGD WTP <br />$9,920,000 <br />$119,446 1.2% <br />MMU Softening Enhancement Project <br />9,620,000 <br />204,281 (2.1%) <br />Robbinsdale 3.5MGD Softening WTP <br />$31,820,400 <br />$765,288 2.4% <br />Based on the items noted above AE2S feels that Ramsey's project is progressing well and is not likely to <br />require additional funding to cover change orders beyond what is already reserved in the construction <br />contingency allowance. AE2S will continue to review project status and work with the contractor to <br />manage the project in the Best interests of Ramsey. Should you have any further questions please do not <br />hesitate to contact me at my c-mail Aaron.Vollmer@ae2s.com or on my cell phone at 612-719-5015 <br />Submitted in Service, <br />AE2S <br />Aaron Vollmer <br />Project Manager <br />Advanced Engineering and Erwin°on nental Services, hic. <br />6901 East (wish Lake Road, Ote'24 « 'v atei Tovver Place BUsiness Ceiite « MaplEI Grove, MIN 55369 - 763463L 5036 <br />