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-r, <br />Roseville Review 8/3/30 <br />--� <br />"When asked whether or not they had conducted a risk assessment study for <br />potential accidents, such as spills or explosions, MPCA officials admitted they had <br />not. However, Peterson said the likelihood of a spill is slim to none, since the <br />asphalt at the plant would be nearly solid." <br />Roads & Bridges — trade magazine — article with five case studies of fires and explosions <br />at asphalt plants <br />"Asphalt plants can be very dangerous places. Accidents, sometimes fatal, <br />happen far too often. Most can be traced to the same root cause: the need for <br />production superseding common sense and normal safety practices." <br />Material Safety Data Sheet 7/1/06 <br />J1�uf WI f M� Y10 E=V�IM IIYlN6'. � <br />Cb not h�vt nhme �:nh �nn:. Fumc. �up.m �sn esplcxlc wh.n cnncen[nted in en rndo.cd rn�rtonmrnt and w(+(+Gtd wtth an ignition x.mca Nc�sf <br />+AA ur uu� u cucrint t��rch nt o{xn il;unc on s full. {wnwll� fi�ll �H rn�pr bin, lK+{ry�er, or mlxr cunuircr Uun Aold. or ha. I�eid uphahic matcrial <br />mk.. {+rnnu'ion+ arr taArn lo pmm+ capinsion :\61mp uatcr M Ik�i ua�hah premm.. nn enpkKion harard <br />N�:\R\I\(;� Nydrogcn sultide (H�S) and ochcr hasnniuus gucs vapors ma�� cvolvc and collcci in Ihe heaQ �wce of stonpc unks ar dSn enclosed <br />vcsscl., anJ aan crcme nn enplosivc, k�aia, ur oxygcn ucGcirnt almor�hcre. H;5 �s is cztmnel� ilunmaFlc anJ can explo4 ilan ignitbn xw¢c is <br />prur�dcd. $ce Secliuns 3 mwl I I for h�ylth effectr of 11_S gas. <br />Title : Better understanding needed for asphalt tank explosion <br />hazards <br />Author(s) : David Trumbore; Charles Wilkinson <br />Document : Oil & Gas Journal � <br />Date : 09/89 —� <br />Abstract : In spite of the extensive use of hot asphalt for over a <br />century, little has been published on the nature of <br />explosion hazards in its storage tanks. Most of what has <br />been published has emphasized that the flash point of the <br />material stored is the most important factor in determining <br />if enough fuel is present in the vapor space for combustion. <br />It is hoped that the clearer view of asphalt tank safety <br />presented in this article will lead to better engineering <br />practice with asphalt tanks and fewer explosions in asphalt <br />plants. <br />Submittal by Neighbors Against the Asphalt Plant November 29, 2010 page 4 of 4 <br />