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~ ~ Jerry Nettleton To dan.hemandez@state.co.us <br />' 09/13/200610:47 AM ~ bill.atkinson@state.co.us <br />~ ~ b~ <br />Subject Fw: Twentymile Coal Fines Discharge -603 Flacculant <br />Aquatic Toxiaty and Map <br />- Forwarded by Jerry Nettleton/TWM/Peabody on 09/13/200610:29 AM - <br />'Lou Koenig' <br />`'' ~LKoenig@zinkan.com> To Jerry Nettleton/TWM/Peabody@PeabodyEnergy <br />09/13/200610:28 AM ~ <br />Subject <br />Dan- <br />The following is an a-mail received from the manufacturer of the flocculent that we use in our coal fines <br />circuit re: aquatic toxicity - <br />Bestregards, <br />Jerry <br />• Dear Jerry, <br />O'B Floc AD 603 is not considered toxic to aquatic organisms or harmful) to the aquatic environment. <br />Fish: LC/50 Fathead minnows/96 hours > 1000mg/L <br />Algae EC50/ 72h / Selenastrum/72 hours > 500 mg/L <br />This product is not expected to bioaccumulate. <br />This is the information 'rf the product is spilled directly into the waterway. <br />The toxicity is even less after it has reacted with the coal fines in the plant. <br />The product is completely absorbed on the coal fines. <br />Sincerely, <br />Zinkan Enterprises, Inc <br />Lou Koenig <br />Technical Director <br />• <br />