2012/10/03 Council Agenda Packet

EVERETT CITY COUNCIL AGENDA ITEM COVER SHEET 5 PROJECT TITLE: A Second Resolution Consent COUNCIL BILL# Declaring an Emergency Action Originating Department Public Works Regarding the Repair And First Reading Contact Person Dave Davis Replacement of the Lift Station Second Reading Phone Number 425-257-8913 No. 24 Force Main Third Reading FOR AGENDA OF October 3,2012 X Briefing Initialed by: Department Head CAA Council P esident Location Preceding Action Attachments Department(s)Approval Near Silver Way Emergency Resolution No. 1, Emergency Resolution No. 2 Legal,Admin May 9.2012 (to be provided) Amount Budgeted Expenditure Required Budget Remaining Additional Required DETAILED SUMMARY STATEMENT: The City of Everett owns and operates Lift Station No.24 located in Snohomish County,south of the City limits. Lift Station No.24 collects sewage from over 15,000 residents in south Everett and areas immediately south of the City in Snohomish County. The discharge pipeline from Lift Station No.24 is a 20-inch ductile iron pipe installed in 1981. The discharge pipeline broke on April 12, 2012,causing a release of sewage into North Creek. In April-May 2012,forensic and structural analysis of the discharge pipeline indicated it has experienced damage and that other pipeline sections are susceptible to further breaks. On May 9,2012,the City Council adopted an emergency resolution,waiving competitive bidding requirements,but instituting a limited bidding process for the replacement of the first section(approximately 1600 feet)of the discharge line. The City received multiple bids for work,and City Council awarded a contract to low bidder Shoreline Construction on June 6,2012 for$896,914.50. As Shoreline Construction began work,the Public Works Department continued its analysis of the condition of the discharge line. By late July and August 2012,the pipe thickness readings made it apparent that severe erosion and pitting persisted along at least the first 3000 feet of the discharge line. There were readings at or below 0.1 inch,which is less than 25%of the standard pipe thickness for such a pipeline. Based on this,the Public Works Department has concluded that the entire 5000 feet of discharge line should be replaced as soon as possible on an emergency basis. In addition,a new pipeline route will be required. In accordance with the May 2012 emergency resolution,the City is directing Shoreline Construction by change order to proceed with the replacement of the first section of the discharge line in the new route. The Public Works Department has analyzed the possible methods for procuring a contractor for the replacement of the remainder of the discharge line,which is about 3000 feet. The Public Works Department believes that completing the replacement of the discharge line by change order to the Shoreline Construction contract will save between four to eight weeks in comparison to a limited emergency competitive process as done in May 2012 or in comparison to a normal competitive process.Because of the deteriorated nature of the discharge line,it is the professional engineering opinion of the Public Works Department,that a four to eight week delay of the replacement of the 3000 feet of discharge line represents an imminent and unacceptable risk of another break in the discharge line. The resolution authorizes the Mayor to sign change orders as necessary to direct Shoreline Construction to complete the replacement of the remaining 3000 feet,so that the entire 5000 feet is replaced. The Public Works Department estimates that the cost of these change orders will be approximately$2.5 million.The Public Works Department will periodically update City Council on the status of the work as it progresses. RECOMMENDATION: Adopt the Second Resolution Declaring an Emergency Regarding the Repair and Replacement of the Lift Station No. 24 Force Main.