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n E,%� <br />www.ae2s.com <br />013 <br />RFP 005 <br />Jet Mixing System Pump <br />$161834.33 <br />y <br />Approved — <br />Modifications <br />Construction Contingency Expense 3 <br />014 <br />RFP 009 <br />Backwash Tank Overflow <br />$11534.38 <br />y <br />Approved — <br />Construction Contingency Expense 3 <br />015 <br />Field Order <br />Field Order No. 4 - Door <br />$101922.45 <br />y <br />Approved — <br />004 <br />Hardware Changes <br />Construction Contingency Expense 3 <br />Door <br />Approved — <br />016 <br />Hardware <br />Door Hardware Changes <br />$561724.85 <br />y <br />Construction Contingency Expense 3 <br />Meeting <br />017 <br />RFP 010 <br />Filter Slab Modifications <br />$961634.23 <br />y <br />Pending — <br />Construction Contingency Expense 4 <br />018 <br />Field <br />Conduit Encasement <br />$5,389.13 <br />y <br />Approved — <br />Directed <br />Construction Contingency Expense 4 <br />019 <br />Field Order <br />North Sump Pit <br />$61764.43 <br />y <br />Approved — <br />012 <br />Construction Contingency Expense 5 <br />020 <br />Field Order <br />CB 1 Air Flow Sleeves <br />$41617.83 <br />y <br />Approved — <br />013 <br />Construction Contingency Expense 5 <br />021 <br />RFP 013 <br />Torpedo Sand Filter Layer <br />$271979.43 <br />N <br />Approved — <br />Construction Contingency Expense 5 <br />022 <br />Remove Penetron <br />- $5,920.00 <br />N <br />Pending — <br />Admixture <br />Construction Contingency Expense 6 <br />023 <br />RFP 014 <br />Reservoir Vent Piping <br />$31645.52 <br />y <br />Pending — <br />Construction Contingency Expense 6 <br />024 <br />RFP 015 <br />BWW Piping Relocation <br />$51504.74 <br />y <br />Pending — <br />Construction Contingency Expense 6 <br />025 <br />RFP 017 <br />Additional Waterstop <br />$101749.95 <br />y <br />Pending — <br />Construction Contingency Expense 6 <br />026 <br />RFP 016 <br />Water Wick Drain <br />$31144.81 <br />Y <br />Pending — <br />Connection <br />Construction Contingency Expense 6 <br />Note: Any extension delays will be approved as a separate Change Order and will not be included in this Construction <br />Contingency Expense. <br />Proposal No. 022: Remove Penetron Admixture: <br />During construction with RFP 010 and the filter slab modifications the clearwell and backwash tank slabs <br />at 108' will now come in contact with significantly less water volume. This determined the Penetron <br />Admixture to be unnecessary for the clearwell and backwash tank slabs at 108' . Contractor price reflects <br />material changes as a deduct in the overall cost. <br />Proposal No. 023 (RFP No. 014): Reservoir Vent Piping: <br />During inspection of the reservoir top slab, it was observed that the vent pipe was installed with the correct <br />amount of clearance from the vent pipe outlet to the top of the concrete slab, but did not take into account <br />the additional insulation that will be installed. To ensure the vent pipe meets all the requirements for <br />clearance, the pipe should be extended by 2' vertically. Contractor price reflects material and labor. <br />Proposal No. 024 (RFP No. 015): BWW Piping Relocation: <br />During construction of the plate settler area, the elevation of the back wash waste pipe in the plate settler <br />room was found to be too low for accessibility. RFP No. 015 showcases new drawings that shift the pipe <br />slightly. Contractor price reflects material and labor. <br />Proposal No. 025 (RFP 017): Additional Waterstop: <br />During construction of the below grade foundations, it was discovered that the water table was high. To <br />prevent water from infiltrating into the WTP, the Contractor was directed to add additional waterstop up to <br />elevation 93.0' . Contractor price reflects material and labor. <br />Advanced Engineering and Environmental Services, Inc. <br />6901 East Fish Lake Road, Suite 184 • Water Tower Place Business Center • Maple Grove, MN 55369 • 763-463-5036 <br />