02-24-1997 Council Packet - Laserfiche WebLink

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S REQUEST FOR COUNCIL ACTION DATE; February 24^y9997 ITEM NO.= /O Department Approval: Name Gregory A. Gappa Title Director of Public Services Administrator Reviewed: 7 Agenda Section: Engineer's Report Item Description: Change Order No. 2 Lift Station No. 28 Renovation This contract is for the renovation of Lift Station No. 28. The installation of a Sensa Phone Express Dialer System in the lift station was included as part of the project. This dialer system will place a call to the pager of the on call public works employee in the event of a lift station malfunction. This will provide for immediate notification cf public works personnel for a quicker response time, thus reducing the potential for property damage. This change order will provide for a Sensa Phone Express Dialer .System for installation in Lift Station No. 6 which is located along Casco Point Road. The amount of this change order is $3,856.47. The Contractor and Boonestro Engineers were provided verbal authorization for this change order by the previous Public Works Director, so the contractor has already purchased the equipment. However, the equipment has not been installed yet. My understanding is that the contractor. Ford Construction of Long Lake, has completed excellent work for the City on .several projects, so it was decided to have him install this additional equipment through the change order process for the existing lift station rehabilitation contract. Lift Station No. 6 is a critical lift station with a limited time for response oefore basement flooding occurs. There have been past incidents of flooded basements from lift station malfunctions. Lift Station No. 6 is one the oldest lift stations in the City and is difficult to repair because of the station design. Rehabilitation of this lift station has been approved for this summer to provide for a more dependable station that will be easier to service and repair. The tributary area to this lift station also experiences infiltration and inflow problems which increase the flow into the system further reducing the amount of time available before property damage occurs in the event of a lift station malfunction. We are concerned that the heavy snow this winter could compound the I & I problem for this lift station in the spring. The immediate installation of a temporary dialer system in the Lift Station No. 6 will provide an added level of protection for this station this spring and summer until after renovation is completed The renovated lift station will include a dialer system installed within the new control system which will provide permanent protection for the this facility. The temporary dialer system can than be moved to either Lift Station No. 7 or 8 and installed to provide permanent protection for one of these stations. COUNCIL ACTION REQUESTED: Motion to approve Change Order No. 2 , Lift station No. 28 Renovation for $3,856.47.