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°- Engineers <br /> Planners <br /> • Economists <br /> Scientists <br /> f <br /> CASE NARRATIVE <br /> General Chemistry <br /> 30654 <br /> f <br /> I <br /> I. Holding Time: All criteria met. <br /> II. Analysis: <br /> I A. Calibration: Acceptance criteria met <br /> B. Blanks: Acceptance criteria met. <br /> C. Matrix Spike: Acceptance criteria met. <br /> k D. Duplicate Analysis: Acceptance criteria. met. <br /> E. Lab Control Sample: Acceptance criteria met. <br /> F. The Nitrate results are reported as. N. To convert to Nitrate as NO3 <br /> ! <br /> multiply the result b 4 . 43 . The <br /> p Y Y primary method for Nitrates is EPA <br /> 1 . 300. 0. The alternate method, EPA 353. 3 may be used if the sample <br /> can not be analyzed with method 300. 0. <br /> G. Other: Low level sulfate contamination was found in <br /> the . method blank. Sample concentrations are <br /> greater than 10 times method blank <br /> contamination. <br /> i <br /> I <br /> III. I certify that this data package is in compliance with the terms and <br /> conditions agreed to by the client and CH2M HILL, both technically and <br /> for completeness, for other than the conditions detailed above. <br /> } <br /> I ' <br /> 4 <br /> SIGNED: aiclos DATE. qll3lql <br /> Randall L. Wright <br /> 1 General Chemistry Supervisor <br /> CG0 <br /> f CH2M HILL Redding Quality Analytical Laboratories 5090 Caterpillar Road,Redding,California 96003 916.244.5227 <br /> t <br />