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July 29, 2003 <br />Chuck Hartman <br />Quality Control: <br />Inorganic - Metals QC <br />Lab ID STK333648 <br />Customer 3015039 <br />3050B <br />06/26/2003:A209 All preparation quality controls are within established criteria, except: <br />All preparation quality controls are <br />The following note applies to Arsenic, Barium, Chromium, Copper, Nickel, Lead, <br />8015M -D <br />Antimony, Vanadium, Zinc: <br />All preparation quality controls are <br />435 Sample matrix may be affecting this analyte. Data was accepted based on the <br />07/12/2003:A - GC204 All analysis quality controls <br />LCS or CCV recovery. <br />6010B <br />06/26/2003:A - IT201 All analysis quality controls are within established criteria. <br />7471A <br />06/29/2003:A212 All preparation quality controls are within established criteria. <br />07/01/2003:A - GC203 All analysis quality controls <br />06/30/2003:A - HG201 All analysis quality controls are within established criteria. <br />Organic QC <br />5030B <br />06/27/2003:A233 <br />All preparation quality controls are <br />within established criteria. <br />8015M -D <br />07/01/2003:B229 <br />All preparation quality controls are <br />within established criteria. <br />07/12/2003:A - GC204 All analysis quality controls <br />are within established criteria. <br />8015M -G <br />07/01/2003:A230 <br />All preparation quality controls are <br />within established criteria. <br />07/01/2003:A - GC203 All analysis quality controls <br />are within established criteria. <br />8260B <br />06/27/2003:A - <br />GM207 All analysis quality controls <br />are within established criteria. <br />Certification: I certify that this data package is in compliance with NELAC Standards, both <br />technically and for completeness, except for any conditions listed above. Release of the data <br />contained in this data package is authorized by the Laboratory Director or his designee, as <br />verified by the following signature. <br />V_7J <br />FGL� �ERONMENTAL <br />�- eY <br />ll A. Dunnahoo, B.S. <br />Laboratory Director <br />STK333648: Case Narrative Page 2 <br />