12-21-2011 Council Agenda - Laserfiche WebLink

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�I�RING TSSO(IfATCS Mt MOM Memo TO: Honorable Mayor and City Council Members FROM: Lee Elfering, City Engineer DATE: December 14, 2011 RE: Interceptor 1 -LC -420 Joint Repairs Approval of Plans & Authorization for Advertising Background The City recently entered into an agreement with the Metropolitan Council for the turnback of MCES interceptor 1 -LC -420, 1 -LC -421, a portion of 1 -VH -422, and Lift Station L10. The agreement required the improvement of these facilities prior to the City taking ownership of them. The above referenced project will address the deficiencies in the 1 -LC -420 interceptor and bring it up to an acceptable standard for turnback to the City. The improvements consist of rehabilitation of select manholes, along with the chemical grouting of infiltration issues within the mainline sanitary sewer. In conjunction with the project the contractor will also complete the chemical grouting of several service connections that appear to have significant infiltration. City crews are televising several of these service lines to determine if the infiltration is occurring only at the mainline connection or farther up the service line. The results of these inspections could modify the service work completed. Per the agreement with MCES, the project is being led by the City with Metropolitan Council taking an oversight and approval roll. This process was agreed to by both parties to expedite the work to eliminate inflow and infiltration into the sanitary sewer system which the City must pay treatment costs on. The project costs, excluding the work for the service lines, will be reimbursed by the Metropolitan Council, Requested Action The plans are currently being reviewed by the Metropolitan Council for approval as required by the agreement and we do not anticipate significant comments. At this time we are requesting plan approval and authorization for advertisement for bids from the City Council contingent on approval from the Metropolitan Council. If you have any questions please call me at (763) 780 -0450 extension 3. 10062 Flanders Court NE — Blaine, MN 55449 — Ph: (763) 780 -0450 Fax (763) 780 -0452 Memo- 121411 -CC (Plan Ann(Oval & Bidding)