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STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303)832-8106 November 20, 2002 Mr. Paul Banks Banks and Gesso 720 Kipling Street Suite 117 Lakewood, CO 80215 VIA FAX: 303-274-8329 Subject: Preliminary list of analytes for Tire Ash Burn Test; Cemex Inc., Lyons Quarry; M-1977-208 Dear Paul, I contacted Ken Niswonger with CDPHE regarding a list of analytes for testing the ash from burned tires and received a voice mail response. DIVISION OF MINERALS GEOLOGY RECLAMATION MINING•SAFETY Bill Owens Governor Greg E. Walther Executive Director Ronald W. Cottony Acting Division Director The issue for DMG is this: What residual orwater-soluble constituents from burned tires, which might be used as fuel at the Lyons Cement Plant, might one anticipate could be released to water? In no way does this question or pre-judge or anticipate that any materials would be released to water, but rather poses the question that must be asked in order to choose an adequate list of analytes to be tested from the ash. Mr. Niswonger's group already is working with the Lyons operation on solid waste disposal issues, so have some familiarity with the question posed above. However, as he indicated, they have not yet given enough consideration to answer DMG's question specifically. What follows should be considered a preliminary, probably incomplete, list of possible contaminants that you might consider testing for. These are collected from data on uncontrolled tire burns, which is considerably different from the type of controlled burns we would expect for the target operation. This list comes with several cautions: a. I am an isotope geochemist, not an organic chemist so cannot attest to the accuracy of this list, including spelling. b. The list was transcribed from a phone message, so inaccuracies may be transmitted.