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Converse Envirotab Telephone (018) 351 2330 <br /> 1/J 169 North Halstead Street, Pasadena, California 91107-3127 FAX (818) 568 9165 <br /> Envirolab No. : 93-10-152 Date Sampled : Oct 19 , 1993 <br /> Project No. : 0071-05-01-0001 Date Received : Oct 20, 1993 <br /> Project/Client : CALTRANS-SHOP 10 Report Date : Oct 27 , 1993 <br /> Project Eng/Mgr: Norman Sacro <br /> Analysis Method: 8015G/8020 ppb <br /> Sample ID: 152-19 152-20 152-21 152-22 152-23 152-24 DL <br /> Client Sample ID MW20 210 MW20 215 MW20 220 MW20 a25 MW20 230 MW20 a35 <br /> Batch Number 029313121 029SG121 Q293G121 029313121 0293G121 0293GI21 <br /> Date Analyzed 10/20/93 10/20/93 10/20/93 10/20/93 10/20/93 10/20/93 <br /> Benzene -N.D.- -N D.- -N D.- -N.D.- -N D.- -N D.- 5 0 <br /> Ethyl Benzene -N.D.- -N.D.- -N D - -N.D - -N.D.- -N.D - 5.0 <br /> Toluene -N.D - -N.D.- -N.D.- -N.D - -N.D - -N.D.- 5 0 <br /> Xylenes -N.D - -N.D.- -N.D.- -K D - -N D.- -N D - 15 <br /> Total Petroleun Hydrocarbons -N.D.- -N.D.- -N.D.- -N.D.- -N.D.- -N.D - 1 0 <br /> Analysis Method: 8015G/8020 ppb <br /> Sample ID 152-25 152-26 152-27 152-28 152-29 152-30 DL <br /> Client Sample ID MW20 a40 MW20 S45 MW20 850 MW20 a55 MW20 x160 MW20 265 <br /> Batch Number 0293G121 0293GI21 Q293G121 Q293G121 Q293G121 029313121 <br /> Date Analyzed 10/20/93 10/20/93 10/20/93 10/20/93 10/20/93 10/20/93 <br /> Benzene -N.D - -N.D.- -N D.- -N.D.- -N.D - -N 0 - 5 0 <br /> I Ethyl Benzene -N.D - -N.D.- -N.D.- -N.D.- -N.D.- -N-D.- 5 0 <br /> Toluene -N.D - -N D.- -N D.- -N.D.- -N.D - -N.D.- 5 0 <br /> Xylenes -N.D.- -K D.- -N D - -N.D - -N D.- -K D.- 15 <br /> TOtaL Petroleum Hydrocarbons -N.D.- -N D.- -N D - -N D - -N D.- -N D - 1 0 <br /> Analysis Method: 8015G/8020 ppb <br /> 1 Sample ID. 152-31 152-32 DL <br /> Client Sample ID MW20 270 MW20 5175 <br /> Batch Number Q293G121 Q293G121 <br /> Date Analyzed 10/20/93 10/20/93 <br /> Benzene -N.D - -N D.- 5 0 <br /> Ethyl Benzene -N.D.- -N D.- 5.0 <br /> Toluene -N D.- -N D.- 5 0 <br /> Xylenes -N.D - -N.D - 15 <br /> Total Petroleum Hydrocarbons -N.D - -N.O.- 1 0 <br /> Units 8020 ug/kg, 8015G mg/kg <br /> DL Detection Limits <br /> N D Not Detected <br /> Trace- Detected, but less than DL <br /> 1 page 2 <br /> A Wholly Owned Subsidiary of <br /> The Converse Prolessional Group <br />