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i <br /> 1 Former Unocal/Wards <br /> 1 3 ' 23 February 2005 <br /> 5400-5606 Pacific Ave., Stockton <br /> 1 John said that the ENSR technicians are experiencing chlorinated solvent odors when opening monitoring wells, and <br /> asked me if there were any dry cleaners or other possible sources for the smells. I asked ENSR to contact their <br /> laboratory and look at the chromatographs for the EPA Method 8260B to identify possible Tentatively Identified <br /> 1 Compounds (TICS), and report any TICS for chlorinated solvents to me. I mentioned the 6600 block of Pacific Ave as <br /> an active tetrachloroethylene(PCE)groundwater cleanup site(Lincoln Center), and added that Lincoln Center is over <br /> a mile to the north of their site, but that there are sewers extending along Pacific Avenue. John suggested that there <br /> 1 might be a connection due to vapor intrusion through soil. I suggested that ENSR set up a file review of Lincoln <br /> Center at our office. Subsequently in a conversation with Mike Infuma, SJCEHD on 7 February 2005, he identified a <br /> potential former dry cleaner facility adjacent to Unocal. David Stavarek of my office suggested using Dragger tubes <br /> 1 for verification of gases when opening well caps. On 10 February 2005 Mike Infurna and I visited the One Hour <br /> Martinizing at 5756 Pacific Ave. The proprietress stated that they had stopped using PCE over 4 years ago. <br /> 1 The meeting ended at 1440 hours. <br /> 1 <br /> i <br /> i <br /> i <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> i <br /> 1 California Environmental Protection Agency <br /> PA Regwled Paper <br />