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REQUEST FOR COUNCIL ACTION DATE: 04/12/03 ITEM: : 1. B. Department Approval, Manager Reviewed: Agenda da Section Consent Description: Item Approving professional services contract for design and reconstruction of Arona Fond Background United properties is purchasing the Arona site for redevelopment. As a part of this redevelopment, the City has been working with the developer and surrounding property owners to address their concerns about Arena Fond. Arena Fond is a land locked wetland that has been receiving storm water since the 1960's. Due to the sandy soils in this area, the basin has historically functioned as an infiltration basin. Approximatly 5 years ago, the infiltration characteristics of this basin failed, causing the storm water to over top the banks of the pond and flood adjacent properties. Over the ensuing gears, the City has been manually pumping the storm water out of the pond after significant rain events in order to avoid property damage. The A.rona redevelopment has provided an excellent opportunity for the City to fix this problem permanently. The proposed project will expand the pond, install a permanent lift station, as well as looping at restoring some of the infiltration characteristics of this basin. This is specialized work that will require modeling as well as wetland mitigation and permitting, so we have solicited bids from three engineenng firms to prepare plans and specifications. The three firms we received bids from are: Bonestroo, Anderlik and Associates* UR , Inc.; and WSB an Associates. After reviewing their proposals, staff recommends that we engage w B and Associates. At a not too exceed cost of $38,800, they have the lowest bid, al so we were very pleased with their design work on the Zimmerman Labe/ CFL project in 200 1. That project was delivered significantly under budget. Financial Implication*. `problem area} was looked at as a part of the Comprehensive Storm water management plan, initial estimates indicate that the total cost of this project, including engineering and administration, would be $ 700,000. we have looked at the contributing storm water volume and have determined that new development contributes 13% of the overall vo lumc to this basin.. The remaining 87% would be the City's responsibility. All costs for this project will be pas for using storm water infrastructure frauds_ Staff Recommendation: Staff recommends approval of a professional services contract with W B and Associates for final design, plans and specifications for Arona pond reconstruction RECOMMENDED COUNCIL + 9 Lotion to approve the attached contract with w B and Associates engineering services final design, plans and specifications for Arena Pond reconstruction. Prepared By: Debra B loom