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� f Or'1 IG a � <br /> Wer L+zs <br /> I ,,o, «,�, �„ t,.�, .WC. SEP 2 1988 <br /> / P.O.Box 4249,Nbdwto,CApromia 915352 <br /> ENVtRONMENfAC ME.ALTH <br /> PERMIT/SERVICES <br /> September 26, 1988 <br /> Harlin Knoll <br /> Environmental Health <br /> P.O. Box 2689 <br /> Stockton, CA 95281 <br /> Dear Mr . Knoll: <br /> California Water Labs currently uses the headspace methodology <br /> for the analysis of BTX in soil. Although the LUFT manual <br /> recommends method 8626 for the analysis of BTX, there are several <br /> analytical disadvantages which we feel compromise quality <br /> results. <br /> We w6ia1d Yrke-the opportunity to' discuss, in person, the. seasons <br /> California Water Labs feels headspace is superior to 8828 in the <br /> analysis of BTX. <br /> Sincerely, i <br /> U <br /> l�l� <br /> Paul Ehrmann <br /> PE/do <br />