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COLUMBIA ANALYTICAL SERVICES,INC. <br /> Analytical Report <br /> Client: EMCON Associates Service Request: K947479S <br /> Project: Foothill/#0939-004.08 Date Collected: 11/28/94 <br /> Sample Matrix: Water Date Received: 12/1/94 <br /> Date Extracted: 12/5/94 <br /> Chlorinated Herbicides <br /> EPA Method 8150A Modified <br /> Units: µg/L(ppb) <br /> Sample Name: LW-1 MW-1 MW-2 <br /> Lab Code: K947479-001 K947479-002 K947479-003 <br /> Date Analyzed: 12/8/94 12/8/94 12/8/94 <br /> Analyte MDL PQL <br /> Dalapon 0.54 5 ND ND ND <br /> MCPP 25.8 200 ND ND <28(a) <br /> Dicamba 0.013 0.5 ND ND ND <br /> MCPA 12.5 200 ND ND ND <br /> Dichloroprop 0.111 0.6 ND ND ND <br /> 2,4-D 0.122 1.0 ND ND ND <br /> 2,4,5-TP(Silvex) 0.010 0.2 ND ND ND <br /> 2,4,5-T 0.022 0.2 ND ND ND <br /> Dinoseb 0.030 2 ND ND ND <br /> 2,4-DB 0.126 2 ND <0.129(a) <0.124(a) <br /> a The MDL is elevated because of matrix interferences. <br /> Approved By: �� %� Date: L "7 <br /> 3S 7479SALS 93S22PQL 1/27195 PU Q,0 0 9 <br />