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Hernandez, Dan <br />From: Jerry Nettleton [JNettleton@peabodyenergy.com] <br />Sent: Wednesday, September 13, 2006 12:36 PM <br />To: daniel.hernandez@state.co.us; bill.atkinson@state.co.us <br />Subject: Fw: Twentymile Coal Fines Discharge - 603 Flocculant Aquatic Toxicity and Map <br />Dan - <br />Apparently the original e-mail didn't go through. Here it is again - <br />Jerry <br />----- Forwarded by Jerry Nettleton/TWM/Peabody on 09/13/2006 10:29 AM ----- <br />"Lou Koenig" <br /><LKoenig@zinkan.com> <br />To <br />09/13/2006 10:28 AM Jerry <br />Nettleton/TWM/Peabody@PeabodyEnergy <br />cc <br />Subject <br />Dan - <br />The following is an e-mail received from the manufacturer of the flocculant that we use in <br />our coal fines circuit re: aquatic toxicity - <br />Best regards, <br />Jerry <br />Dear Jerry, <br />O'B Floc AD 603 is not considered toxic to aquatic organisms or harmfull to the aquatic <br />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 if 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 />2inkan Enterprises, Inc <br />1 <br />