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THE SEACREST GROUP <br />Quality Assurance Check List -Acute and Chronic Whole Effluent Toxicity Test <br />Client: Mountain Coal Company <br />Start Date of Test: January 15, 2004 <br />SeaCrest Sample Number: 304016 <br />Species Tested: Daphnia magna, Pimephales promelas <br />Sample received in lab properly preserved (4° Cj? N' <br />Sample delivered on ice or equivalent? Y <br />Test initiated within 36 hours of collection? Y <br />Test protocol conforms with CDPHE guidelines: D. magna? Y <br />Test protocol conforms with CDPHE guidelines: P. promelas? Y <br />Average Test Temp ± 1 ° C: D. magna? Y <br />Average Test Temp ± 1° C: P. promelas? Y <br />DO level >4.0 mg/L; no supersaturation: D. magna? Y <br />DO level >4.0 mg/L; no supersaturation: P. promelas? Y <br />Mortality in control <10%, <20% for chronic: D. magna? Y <br />Mortality in control <10%, <20% for chronic: P. promelas? Y <br />Daphnia magna neonates in control <24 hours old? Y <br />P. promelas larvae in control 1-14 days old in acute, < 1 day old in chronic? Y <br />Appropriate reference toxicity test conducted? Y <br />Lab Ref. Tox. test results within the confidence limits for the lab? Y <br />* Sample at 8.4° C and delivered on blue ice. <br />Signature Date 2- /.ze /~ <br />Position: Laboratory Manager <br />