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pcice <br /> t D R P a A p 1 0 ® REPORT OF LABORATORY ANALYSIS <br /> THE ASSURA HCE OF ORALITY <br /> Delta Environmental Consultants April 22, 1992 <br /> 3330 Data Drive Suite 100 PACE Project Number 420212501 <br /> Rancho Cordova, CA 95670 Revision of 02/20/92 <br /> ' Attn. Ms Lisa Rainger <br /> Client Reference. Exxon 7-3708 <br />' PACE Sample Number 70 0021677 <br /> Date Collected: 02/10/92 <br /> Date Received. 02/12/92 <br />' Client Sample ID MW-4 <br /> Parameter Units MDL DATE ANALYZED <br />' ORGANIC ANALYSIS <br /> TPH GASOLINE/BTEX <br /> TOTAL FUEL HYDROCARBONS, (LIGHT) - 02/15/92 <br />' Purgeable Fuels, as Gasoline (EPA 8015) ug/L 50 91 (AT) 02/15/92 <br /> PURGEABLE AROMATICS (BTXE BY EPA 8020) : - 02/15/92 <br /> Benzene ug/L 0.5 ND(MT) 02/15/92 <br />' Toluene ug/L 0.5 0 9 02/15/92 <br /> Ethylbenzene ug/L 0.5 ND 02/15/92 <br /> toylenes, Total ug/L 0 5 0 9 02/15/92 <br /> MDL Method Detection Limit <br />' ND Not detected at or above the MDL <br /> (AT) Atypical chromatogram Three unknown peaks were observed Subsequent analysis <br /> by EPA Method 624 of a sample from MW-4 (sampled March 18) was positive for <br /> chlorinated hydrocarbons Refer to PACE Project number 420319.518 for further <br /> detail <br /> (MT) A peak eluting near Benzene and suspected to be methyl tert butyl ether (MTBE) <br />' was seen at approximately 9 ppb <br /> 1 <br /> 11 Digital Drive Offices Serving Minneapolis Minnesota Charlotte North Carolina An Equal Opportunity Employer <br /> Novato CA 94949 Tampa,Florida Asheville North Carolina <br /> TEL 415 883 8100 Iowa City Iowa New York New York <br /> FAX 415 883 2673 San Francisca,California Pittsburgh,Pennsylvania <br /> Kansas City Missouri Denver Colorado <br /> Los Angeles California <br />