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TKDA <br />ENGINEERS ARCHITECTS PLANNERS <br />May 10, 1985 <br />Mr, Steve Thatcher, P.E. <br />Director of Public Works/Community Development <br />City of Mounds View <br />2401 Highway 10 <br />Mounds View, Minesota 55112 <br />Re: Repel Ofng Water Storage Tank No. 2 <br />Mounds View, Minnesota <br />Commission No. 8052 <br />IOL12 KING DUVALL ANDERS <br />AND ASSOCIATES. INCORPORAI. <br />M1 ERICAN NATIONAL <br />ONA55101 <br />BANK BUILDING <br />SAIN61249244DD <br />Dear Mr. Thatcher: <br />As a result of your Inquiry, and having rev lewed Mr. KII ngwe contacted the <br />letter regarding the occurence of cold weather pop - <br />off" 1 <br />local representative for Koppers Paints to see If that firm has encountered ' <br />the phenomena of which Mr. Kling writes. R.E. Mooney, Koppers <br />representative, claims that they have experienced only one occurence even <br />ff <br />by Ki <br />h had <br />en pa <br />Ing the <br />; <br />rsemi on the southsideatank w ere thecsun's heatinglnted <br />effects were felt. <br />It Is also Interesting to consider that Kling's letter seems <br />emsto TanktNto 2, <br />problems with tanks having a heavy coating thickness; y your <br />if that Is where the problem Is occurring, has a total coating thickness of <br />only about 8.5 mils. <br />Fortunately, we have not previously experienced the pop -off phenomena at <br />any of our tank coating Jobs, so we cannot relate to It; however, we have <br />only recently opened -up our paint specifications to allow alternative <br />paints <br />rlcin . MaybeKoppers, <br />we wllI haveattempt <br />recons der provide this moov Pifition and alternativetter <br />P g• Y <br />coatings are experiencing more frequent problems. <br />We hope that this Information Is of some value. If we can be of further <br />assistance, please let us know. <br />Sincerely yours, <br />J. Thomas Kirk, P. E. <br />dTK.J ATTACHMENT N2 <br />