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fiver <br />MEMORANDUM <br />TO: Lori Johnson, City Administrator <br />FROM: Terry Maurer, Public Works Director <br />DATE: September 15, 20089 <br />SUBJECT: Asphalt Toxicity Report <br />At the public hearing fox the 2008 Bituminous Overlay, the City Council asked staff to <br />provide afollow-up report on the toxicity of asphalt pavement, based on comments received <br />from the public at the hearing. In response to this Council request, Nicki Blake-Bradley, <br />Environmental Technician, prepared the attached Asphalt Toxicity Report. In this report <br />you will see that Nicki researched the production of asphalt pavement, the placement of the <br />pavement, and the long-term environmental affects of having the pavement in place. <br />Generally, the report finds that there axe very limited environmental concerns of the long <br />term use of asphalt as a driving surface. In fact, she states that findings of studies have <br />indicated that the runoff from asphalt have found most chemicals in the runoff come from <br />vehicles using the roads or chemicals placed on the roads, rather than from the bituminous <br />surfaces themselves. <br />As you might imagine, Nicki's findings are that there are more environmental concerns in <br />the production of asphalt materials. This is why this tends to be a highly regulated industry. <br />She also talks about some of the environmental concerns with the placement of hot asphalt <br />materials. Hopefully, this report will provide enough information to answer any questions <br />that the Council may have about environmental concerns with bituminous pavements. If <br />you need additional information or have other questions, please contact me. <br />cc: Nicki Blake-Bradley <br />S:\PUBLIC WORKS\2007 CC memos\09 15 08 asphalt toxicity.doc <br />