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Client: Mountain Coal Company CO - 0038766 <br />Site: West Elk Mine 017 <br />SCG Project No.: 305112 <br />Acute Toxicity Test Summary <br />Test: • 48-hour static renewal using Daphnia magna <br />• 96-hour static renewal using Fathead minnows (Pimephales <br />promelas) <br />Client: <br />Mountain Coal <br />Test Procedure Followed: EPA-821-R-02-012 <br />Sample Description: 305112 <br />Time of Sample Date of Sample Time of Sample Date of Sample <br />Collection Collection Receipt Receipt <br />1000 <br />OS-11-2005 <br />1030 <br />OS-12-2005 <br />~Gk `,~ x~~~t~`~ ~~'~ `~~~~~,~," ~~~-~~ ~~Da hnwna ask=="}~ ~ "`~~ atliead ~o~ E <br />Test Initiation Time 1330 1500 <br />Test Initiation Date OS-12-2005 OS-12-2005 <br />Test Completion Time 1400 1420 <br />Test Completion Date OS-14-2005 OS-16-2005 <br />Dilution Water: • Moderately hazd laboratory reconstituted water <br />Test Organism Source: • Daphnia magna <br />The SeaCrest Group <br />• Fathead minnows <br />The SeaCrest Group <br />Reference Toxicant: • Sodium Chloride <br />The SeaCrest Group 3 <br />