Agenda - Council - 09/26/2023 - Laserfiche WebLink

Home

5. 20. CC Regular Session Meeting Date: 09/26/2023 Primary Strategic Plan Initiative: Address infrastructure needs. Information Title Adopt Resolution #23-226 Approving Construction Contingency Expense No. 1 for Improvement Project #21-09, Centralized Water Treatment Plant Purpose/Background: Purpose: The purpose of this case is to adopt Resolution #23-226 approving Construction Contingency Expense No. 1 for Improvement Project #21-09, Centralized Water Treatment Plant. Background: The Water Treatment Plant (WTP) project includes a construction contingency cost of $950,000. This contingency cost is intended to pay for new items during construction that were not contemplated during the design process, or for items that the owner, engineer, or contractor(s) propose to revise during construction• Attached is a letter from the Construction Lead that works for the Project Engineering firm of AE2S that identifies several items requiring adjustments or that are recommended to be adjusted during construction. The letter is intended to outline the adjustments and to summarize the current project budget to allow the City to fully understand the status of the project before spending a portion of the construction contingency costs. To date, 6 requests for pricing (RFP) have been submitted to Magney Construction, the awarded contractor for this project. A full list of these requests is included in the attached letter. AE2S has since received pricing back from Magney on 3 of the RFP's. AE2S would therefore like to move forward with Construction Contingency Expense No. 1, which includes prices for RFP 001, 003, and 006. It is important to note that the Contractor has included a request for time extension in RFP 001 and RFP 006. More information has been requested before approving these time extensions. If an extension is approved to extend the substantial completion date, that will result in a Change Order issued at a different time. Details on the 3 RFP's addressed within this case are summarized in the attached letter from AE2S and below. RFP No. 001: Mixing Pumps Pipe Upsizing The Backwash Tank mixing system manufacturer is recommending that the suction and discharge piping on the mixing pump be upsized from the proposed 6" to 14" to meet the required mixing flow rate. This change will not alter the price of the mixing system package that will be supplied by the manufacturer. However, it will require Magney to upsize the pipes and valves from the pump to the tank. RFP No. 003: Administrative Area Ceiling Grid Color The acoustic ceiling suspension grid in the administrative area of the Water Treatment Plant was originally specified as being white. However, after reviewing samples provided by the manufacturer, it was determined by the Architect that a chrome system would be better suited for the aesthetics of this area. RFP No. 006: Storm and Plumbing Updates For plan approval, the Department of Labor Industries must review all plumbing and civil plans. Comments back required adjustments to various plumbing elements and modifications to the stormwater retention pond were