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s <br /> Rainwater Carwash • <br /> 420 W. Yosemite Ave.,Manteca <br /> Page 2 of 2 <br /> • Vanor Intrusion Evaluation As discussed during the meeting, the site is ready for a <br /> vapor intrusion evaluation to be conducted. EHD directs submittal of the vapor <br /> intrusion evaluation by October 26, 2007. <br /> • Installation of additional ground water extraction GWE wells. In the QR, AGE <br /> proposes to install additional GWE wells near MW-2 screened from 12 to 32 feet <br /> below surface grade (bsg) and one near the northern property boundary to prevent the <br /> off-site migration of dissolved MTBE. EHD directs that a workplan for this proposal <br /> be submitted for review by October 26, 2007. Placement of GWE wells(s) should be <br /> slightly down-gradient north west from MW-2 which appears to be the core of the <br /> plume. <br /> Please contact Frank Girardi at (209) 953-7868 if you have any questions. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> JA Vltk .4,Vl�Ov�. <br /> Frank Girardi, Senior REHS Nuel C. Henderson, Jr., PG <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> cc: AGE—Timothy Cuellar, Project Geologist <br /> cc: RWQCB, Central Valley Region—James Barton, PG <br /> cc: Harjit Singh, et al <br /> cc: Darshan S. Malhi, et al <br /> cc: Aman Business Enterprises Inc. <br />