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Client: Cotter Corporation CO-0001244 SCG Project No.: 3101187 <br />Site: Schwartzwalder Mine WWTF <br />Chronic Toxicity Test Summary <br />Test• • 7-day static renewal using Ceriodaphnia dubia. <br />. • 7-day static renewal using Fathead minnow (Pimephales <br />Promelas). <br />Client: Cotter Corporation <br />Test Procedure Followed: • Ceriodaphnia dubia: EPA/821/R-02-013. Method 1002.0 <br />(2002) <br />• Fathead minnow: EPA/821/R-02-013. Method 1000.0 <br />(2002) <br />Sample Number: 3101187 <br /> <br />Sample Time of <br />Collection Date of. <br />Collection Time of Receipt Date of Receipt <br />Effluentl 0830 12-27-2010 1545 12-27-2010 <br />Effluentl 0730 12-29-2010 1448 12-29-2010 <br />Effluent 3 0500-1100 12-31-2010 1205 12-31-2010 <br /> 'Cerioda hnia dubia Fathead minnow <br />Test Initiation Time 1230 1100 <br />Test Initiation Date 12-28-2010 12-28-2010 <br />Test Completion Time 1300 1115 <br />Test Completion Date 01-03-2011 01-04-2011 <br />Dilution Water: • Moderately hard laboratory reconstituted water <br />Test Organism Source: • Ceriodaphnia dubia <br />SeaCrest Group <br />• Fathead minnow <br />SeaCrest Group <br />Reference Toxicant: • Sodium Chloride <br />SeaCrest Group 3