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• <br /> Bonestroo, Rosene, Anderlik and Associates. Inc is an Affirmative Action /Equal Opportunity Employer <br /> B onestroo Principals: Otto G. Bonestroo. PE. • Joseph C. Anderlik. PE. • Marvin L. Sorvala, PE. • <br /> Glenn R. Cook. PE. • Robert G. Schunicht, PE. • Jerry A. Bourdon, P.E. • <br /> R osene Robert W. Rosene, PE.. Richard E. Turner, P.E. and Susan M. Eberlin, CPA., 1i #onsultazo 99 <br /> Anderlik & Richard <br /> Associate <br /> Foster, PE. • David O SLoskota, RE. Keith <br /> Robet C R usssek, A.LA O• M f � <br /> • A Hanson, RE. • <br /> Michael T Rautmann, PE. • Ted K.Field. PE. • Kenneth P Anderson, P.E. • Mark R. Rolfs, PE. • <br /> A ssociates Sidney P. Williamson, P.E L.S. • Robert F. Kotsmith • Agnes M. Ring • Allan Rick Schmidt. PE. <br /> Offices St. Paul, Rochester. Willmar and St. Cloud, MN • Milwaukee. Wl <br /> Engineers & Architects Website: www.bonestroo.com <br /> September 29, 1999 <br /> City of Centerville <br /> 1880 Main Street <br /> Centerville, MN 55038 <br /> Attn: Mr. Jim March <br /> Re: Lift Station No. 2 Upgrade <br /> • BRA File No. 616 -98 -000 <br /> Dear Mr. March: <br /> Introduction <br /> This letter report was prepared to evaluate the condition of Lift Station No. 2 located on Peltier <br /> Lake Drive. This letter report is to be used as a planning document for the renovation of this Lift <br /> station. <br /> The lift station was researched and then inspected to evaluate its overall condition, design, and <br /> reliability. The pump capacity was also checked through direct measurement of incoming and <br /> pumped flow. Recommendations were formulated to lay out the steps necessary to renovate the lift <br /> station. In general, it was found that the lift station has been satisfactorily cared for from a labor • <br /> standpoint, but equipment replacements have not kept pace with generally accepted useful life <br /> estimates. Most of the key mechanical components have not been replaced and are operating at <br /> risky maintenance levels because they are serving beyond their useful lives. <br /> Description of Work <br /> The evaluation of Lift Station No. 2 has been based on information gathered from three sources: <br /> 1. Site Inspection; <br /> 2. Existing Records; and <br /> 3. Discussion with City Staff <br /> The lift station was inspected by a civil engineer in the presence of City Staff. The site visit lasted <br /> approximately two hours, during which time the structural, mechanical, and electrical components <br /> were inspected during operation. Flow tests were conducted, and information was gathered about <br /> the stations history, maintenance, and operation. <br /> 2335 West Highway 36 • St. Paul, MN 55113 • 651-636 - 4600 • Fax: 651 -636 -1311 <br />