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Client: Western Fuels <br />Site: New Horizon Mine 007 <br />Client: Western Fuels SeaCrest Sample No.: 311468.B <br />Species Tested: Ceriodaphnia dubia and Fathead minnow <br />Sample received in lab properly preserved (0 -6 °C)? Y <br />Sample delivered on ice or equivalent? Y <br />Test initiated within 36 -hours of collection? Y <br />Test protocol conforms to CDPHE guidelines (Ceriodaphnia dubia)? <br />Test protocol conforms to CDPHE guidelines (Fathead minnow)? Y <br />Average test temp. ±1°C (Ceriodaphnia dubia)? Y <br />Average test temp. -1 °C (Fathead minnow)? Y <br />DO level >4.0mg /L; no super saturation (Ceriodaphnia dubia)? N* <br />DO level >4.0mg /L; no super - saturation (Fathead minnow)? N* <br />Survival in control >90 %, >80% for chronic (Ceriodaphnia dubia)? Y <br />Survival in control >90 %, >80% for chronic (Fathead minnow)? Y <br />Ceriodaphnia dubia neonates <24 -hours old? Y <br />Fathead minnow larvae <24 -hours old? Y <br />Appropriate reference toxicity test conducted? Y <br />Lab. Ref. Tox. test results within the confidence limits for the lab? Y <br />*Sample #3 was received at >9.0mg/1 for dissolved oxygen. After 5 minutes of aeration DO <br />readings were within acceptable limits for testing. <br />Signature <br />Quality Assurance Check List — Chronic Whole Effluent Toxicity Test <br />Position: Cab Manager <br />Start Date of Test <br />( Ceriodaphnia dubia) <br />7 -19 -2011 7 -19 -2011 <br />0)- <br />CO- 0000213 SCG Project No.: 311468.B <br />Start Date of Test <br />(Fathead minnow) <br />Date o • ic to i <br />SeaCrest Group 29 <br />