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McCAMPBELL ANALYTICAL INC. 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele:510-798-1620 Fax:510-798-1622 <br /> Parker Environmental Client Project ID: #113-26;The Customer Date Sampled:02/26/93 <br /> 4185 Rialto Court Co;Dave's Cheaper,Tracy <br /> Date Received:03/01193 <br /> Pittsburg, CA 94565 Client Contact:Jim Park-r Date Fodracted:03/01/93 <br /> i Client P.O: Date Analyzed:03102!-03103193 <br /> I <br /> Low Boiling Point (C6-C12) TPH*as Gasoline and MX* <br /> EPA methods 5030 nindifed 8015,and 8020 or 602:California RR'QCB(SFBavRezion method GCFID 5030 <br /> Lab ID Cheat ID Matrix Ethyl Benzene Toluene TPH(G)* Xylenes %Rec.Sur- <br /> Yl Ben- <br /> zene rogate <br /> 21652 B4-6 S ND ND ND ND ND 107 <br /> 21653 B-2-6 S 191b,c 1.8 0.062 057 15 106 <br /> 21654 B-3-6 S ND ND ND ND ND 108 <br /> 21655 B4-6 S 260,b,e 0.36 0.93 3.6 17 103 <br /> 21656 B-4-7 S 470,b,e 33 5.7 7.5 28 111 <br /> s 21657 B-5-6 S 88,b,e 0.25 15 1-2 65 100 <br /> r 21658 B-6-6 S 79,b,e ND<0.i7_5 0.19 0.44 0.19 98 <br /> 21659 B-7-7 S ND,a ND ND ND 0.013 106 <br /> e <br /> Detection Limit unless W 50 ug(L 0-5 OS OS 0.5 <br /> otherwise stateil~ND <br /> means Not Detected S 1.0 mg(kg 0.005 0.005 0.005 0.005 <br /> *water samples are reported in ug/L and soils in mg/U <br /> ' cluttered chromatogram;sample peak co-elutes with surrogate peak <br /> +The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for their interpretation:a)predominateI odified or weakly modified gasoline-b)heaviergasoline <br /> rang compounds predominate (agagasoline?); c �hter gasoline range compounds predominate(tie most <br /> mobile gasoline compounds);d)hea and G t gasoline range compounds predominate(aged asoline together <br /> with introduced Tight compounds?);e) gasoline range compounds predominate;no recoQumbfe pattern;- one <br /> to a few isolated peaks present;g)strongly aged gasoline or diesel range compounds predominate. <br /> Edward Hamilton,Lab Director <br /> 39 <br />_ y <br />