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u <br />Property Management <br />Julio A. Mangine, Director <br />660 Government Center West <br />50 West Kellogg Boulevard <br />St. Paul, MN 55102-1657 <br />Mr. Patrick Trudgeon <br />Community Development Director <br />City of Roseville <br />2660 Civic Center Drive <br />Roseville, MN 55113 <br />� <br />Tcl: 651-266-2260 <br />Fax: 651-266-2264 <br />23 September 2010 <br />Dear Pat, <br />We are responding to your letter of 3 September 2010 regarding the sound the Library's chillers <br />generate. We offer the follow plan for corrective action: <br />The smaller chiller, which does not now have any screening, will have an enclosure erected that will <br />not only visually screen it but will afford some acoustical baffling. This work will begin within 10 <br />days and be completed 5 working days after it begins. <br />The County has engaged a specialized acoustical engineer who will retest the sound <br />measurements at the property lines and at the machines to verify the effect of the new enclosure. <br />We know that we are no longer in the heat of the summer. So, we will have our building technicians <br />at the testing, so that the machines can be made to work at outputs simulating summer cooling <br />conditions. We will report back to you the engineer's finds. <br />If we remain non-compliant after these measures are taken, we will continue to work with the <br />acoustician on next steps to remedy the situation. <br />Rest assured that our design team has specified, and we have purchased, the quietest machine <br />available for the large chiller. That is why we are focusing our�efforts on the smaller unit. <br />We hope this plan will be initially successful. In any case, we are committed to resolving the <br />situation as quickly as possible. Please contact me directly if you would like to further discuss this <br />plan. , <br />, dG�. <br />, <br />:�erome Biedny, P <br />�ftamsey County, P <br />660 Government Center West <br />50 West Kellogg f3oulevard <br />St. Paul, MN 55102-1657 <br />desk 651.266.2257 <br />fax 651.266.22fi�1 <br />� <br />ianager <br />Management <br />Minnesota's First Nome Rule Count}, <br />Printed un rcc�ded psper ti+i�h a i �inlnium nf IG"�� poot-con.umer cont<nt <br />