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<br />03/05/1999 14:11 <br />3-el-1999 2:38PM <br /> <br />5124415175 J WEICHT AND ASSOC <br />FROM PLAISTEOAITKINOOLF'I 6124417782 <br /> <br />PAGE 02 <br /> <br />F'.2 <br /> <br />. <br /> <br />UNIVERSITY OF MINNESOTA <br /> <br />~~ C'"'''~lfI'~''''' <br />TfM~~" <br /> <br />. 5()lJ MiIlcrTf1IIIle Hi.n.,;y <br />o../Iolh. MfNVItM ,,611.144Z <br /> <br />NQIMral R4'Olll'ce, R,..rdo 1nI,jtu'~ <br /> <br />:JUi.72f).4272 <br />FAX.. 213-720-9410 <br /> <br />February'1S, 1999 <br /> <br />Mr, Todd P.laisted <br />Aitkin AgriP~[ Jnc. <br />P.O" Box 332 <br />11555 20StIl Avenue ,NW <br />Elk River, MN 55330 <br /> <br />SLlbject: Spontaneous Combustion of Peat <br /> <br />Dear Todd: <br /> <br />. Thj~ let~er follows up on our l'ecen~ telephone con'iersution regarding sp('mlllneous combustion <br />(sclf-hetlting) of peat. As you know. this phenomenon only occurs under very special <br />circumstances when mc)isture content, supply, of air (oxy~cn). density of peat, and volume of peat <br />are ideally suited for seJf-heating. Thi5 huppen.s most often when peat is loosely put intO piJes , <br />that are marc than 60 cubic yards. In these piles, $c.lf-hcatil1J can be &reutly reducoo by driving <br />heavy equipment over the piles. . This significantly reduces the available oxygen for self-heating. <br /> <br />Regardins packaged peat (loose-filled or compressed). there: bas never been; to my knowledge in <br />2.5 years of working witfl peat products. self-heating of peat in packages. Packaged peat, <br />. especially if it compressed. dramatically reduces the available oxygen needed for self-heating. .l <br />know of!IO examples of self-heating pack:lged peat, regud!ess of whet~et' it is stored inside a <br />heated or unheared building Of oluside in the elements. ' <br /> <br />I hope this infonnation is helpful to you in h.mdliTlg )lour peat. Pleuse feel free t" call me at <br />(218) 120-4324 if you would like to further diliCUS$ this matter. <br /> <br />Sincerely. <br /> <br />J~ <br /> <br />Tnc)ma." J. Mallerer. Ph.D. <br />Peat Program DireCtor <br /> <br />. <br /> <br />D^ T A'l)OCS\MAI. TBR8IN.1'RS~\Pl...4 ~T!JJ <br />