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2335 Highway 36 W <br />St Paul, MN 55113 <br />Tel 651-636-4600 <br />Fax 651-636.1311 <br />w~n~w.bonestroo.com <br />March 17, 2008 <br />Ms, Kris Giga, PE <br />City of Roseville <br />2660 Civic Center Drive <br />Roseville, Mn 55113-1815 <br />Re: 2007 Ill Program <br />City of Roseville <br />Bonestroo File No.. 425-07125-0 <br />Dear Ms. Giga, <br />Bonestroo <br />We are pleased to present the City of Roseville with this report on the 2007 Infiltration) Inflow Program. <br />This project consisted of an initial sanitary sewer collection system analysis effort with the ultimate goal of <br />reducing the amount of clear water in the City system. This clear water results in MCES charges for <br />treatment in addition to a surcharge for the peak flow rate. <br />Based on the analyses completed, we have provided some guidance subsequent analytical steps and <br />identification procedures, which can then be followed by rehabilitation of clear water sources. These are <br />basic steps and will be subject to future modification and adaptation as more data are developed. The <br />City's goal of 1/I reduction will require a long term commitment to continuously observe conditions and <br />rehabilitate sources as they are identified or they occur. <br />Thank you for the opportunity to work on this project and get to know some of the City staff. We are <br />available to discuss the contents of this report with you and other interested parties at any mutually <br />convenient time. <br />Sincerely, I hereby certify that this Report was prepared by me <br />BONESTR00 or under my direct supervision and that I am a duly <br />Cam, Licensed Professional Engineer under the laws of the <br />~11~(~pt State of Minnesota. <br />Charles Ja i /~ ~ , ~~ <br />Project Manager ~JV1 <br />Charles R. Janski P E. <br />Date: ~I~~la B Reg. No,: 14596 <br />