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caftm, o � <br /> wa r Labs <br /> A0hft of Tf+oct�cfnrionn,en09yo, , - *r-. SEP 2 1988 <br /> f � P.O.Banc 4249.MoOam CyMamfC 95352 <br /> ENV�20NMEMA1!�lE.4CTH <br /> PERMft/SEt7V1C_S <br /> September 28, 1988 <br /> Harlin Knoll <br /> Environmental Health <br /> P.O. Box 2989 <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 8828 for the analysis of BTX, there are several <br /> analytical disadvantages which we feel compromise quality <br /> results. <br /> "We would like'-'tEe opportunity tos� cuss, in person, the reasons <br /> California Water Labs feels headspace is superior to 8828 in the <br /> analysis of BTX. <br /> Sincerely, <br /> Paul Ehrmann <br /> 1 <br /> PE/do <br />