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Margaret La orio EH <br /> From: Margaret Lagorio [EN] ' <br /> Sent: Tuesday, July 25, 2006 11:55 AM i <br /> To: sharla.hardy@ci.st6ckton.ca.us, ' <br /> Subject:. <br /> 110 Sonora, Stockton <br /> I� Sharla, <br /> I'm providing this response to your telephone message about the above referenced site. Prior to considering sites that <br /> have been contaminated from underground storage tank releases that have performed remediation and are to be <br /> considered for a determination of no further actionrequired"all monitoring wells (including vapor wells with water in them.) <br /> should be sampled and the water analyzed for all constituents of concern. In our meeting of January 2006 we discussed <br /> two quarters of groundwater sampling� <br /> r undwater sam lin and testing prior to our meeting again in August. Unfortunately, all the wells were <br /> not sampled because of previous agreements to not sample all the wells. l discussed with your consultant, Advanced <br /> GeoEnvironmental, that wells MW2, MW4, RW1 and VW4 had not been sampled in March or Jdne 2006. Also,VW5s and <br /> PZ1 have not been sampled since July 1999 and November 1997 at which time the samples had concentrations of <br /> contaminants, so if it is possible to obtain samples from these wells,they also should be sampled and the water analyzed: <br /> In addition, I discussed with your consultant addressing the issue of soil vapor intrusion that was also discussed at the <br /> January 2006 meeting. This can again be discussed at our August meeting but I hoped the groundwater sampling of the <br /> above listed wells could be performed prior to the August meeting. I hope this E-mail provides the information you need. <br /> ' Margaret <br /> r <br /> t <br /> I <br /> i <br /> k <br /> a <br /> 1 <br /> I <br /> 1 <br /> r <br /> (M <br /> k <br />