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<br />. <br /> <br />. <br /> <br />. <br /> <br />URS <br /> <br />Agenda Item 7 A.2 <br /> <br />MEMORANDUM <br /> <br />Thresher Square <br />700 Third Street South <br />Minneapolis, MN 55415 <br />Phone: (612) 370-0700 <br />Fax: (612) 370-1378 <br /> <br />To: <br /> <br />Mr. Joe Lynch! City Copy: <br />of Arden Hills <br /> <br />Nick LandwerfURS <br />Tom Moore/AH <br /> <br />File: <br /> <br />379510055001 <br /> <br />From: <br /> <br />Greg Brown <br />Arden Hills City Engineer <br /> <br />Date: <br /> <br />February 5, 2003 <br /> <br />Subject: <br /> <br />2003 Lift Station #5 Rehabilitation Scope <br /> <br />Background <br />The 2003 CIP program for sanitary sewer improvements budgeted $200,000 for the rehabilitation of Lift <br />Station #5 near the intersection of Lake Johanna Blvd and County Road E. URS is currently working on <br />the construction documents for this work and has met with City staff and a potential pump supplier <br />regarding the improvements. Recently, the City has experienced significant maintenance issues with Lift <br />Station #2 located upstream of Lift Station #5 in the wetland complex adjacent to Perry Park. The <br />rehabilitation of Lift Station #2 is budgeted for rehabilitation in the 2007 CIP at $200,00Q. <br /> <br />The configuration ofLS #2 is very similar to that of LS# 5 and therefor the rehabilitation work would be <br />nearly identical for the two lift stations. The construction estimate for the LS #5 improvements based upon <br />our construction plans is under budget at approximately $180,000. We have prepared an estimate for a <br />combined project for similar improvements and estimate the cost to be approximately $325,000. Since LS <br />#2 was planned for rehabilitation in 2007 at a cost of $200,000, the overall sanitary sewer enterprise fund <br />would realize a net savings of approximately $75,000 (18.8% of combined budgeted amounts). <br /> <br />The engineering fees associated with two separate $180,000 projects are $19,300 while one combined <br />$325,000 project would amount to $15,800 (based upon our contract terms). URS construction <br />inspection/administration fees would be reduced as well with a combined project by approximately $3,500. <br /> <br />The City is standardizing its pumping equipment and controls to simplify and reduce maintenance <br />operational costs as a part of the ongoing rehabilitation of our 14 sanitary sewer lift"stations. A combined <br />project would accelerate the standardization completing the modernization ofthe City's three largest lift <br />stations and therefore realizing labor, materials and operational cost savings sooner. <br /> <br />The Sanitary Sewer Enterprise Fund currently has a balance of approximately 2.3 million dollars. <br /> <br />Recommendation <br />Considering the benefit the City realizes by rehabilitating and standardizing lift stations in general, the <br />recent maintenance issues with LS #2, the anticipated combined construction and engineering cost savings <br />and the substantial balance in the sanitary sewer enterprise fund, the City Engineer recommends that <br />Council authorize the addition of Lift Station #2 to the 2003 Lift Station Rehabilitation Project. <br /> <br />PROJECTS\ARDb"'NHIL\37951\GENERAL\Documents\Agenda Memo 2-5"()3 Item 7A2.doc <br />