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9 0 <br /> Former Greer Construction— Reports Page 2 of 2 <br /> 15634 Steinegul Road June 1, 2015 <br /> Escalon, CA 95320 <br /> To address case closure impediments, please submit an updated conceptual site model (CSM), <br /> including a fate and transport model, to evaluate the potential for residual contaminant mass to <br /> impact the onsite domestic well and the neighboring property's domestic well. The report should <br /> also provide evaluations of the potential for vapor intrusion to indoor air, direct contact, <br /> exposure to outdoor air, removal of secondary source to the extent practicable, and contaminant <br /> plume stability in accordance with criteria set forth in the Policy. <br /> In addition, although Electronic Deliverable FormatTM (EDF) data has been submitted to the <br /> online Geotracker database pertaining to recent groundwater monitoring events, no reports for <br /> these events have been submitted to the EHD or Geotracker. Please submit groundwater <br /> monitoring reports or annual reports containing all laboratory reports, field notes, and other <br /> pertinent documents for all groundwater monitoring events performed after January 2013 to <br /> Geotracker by 31 July 2015. <br /> If you have any questions or concerns regarding this letter, please contact Gabriel Gonzalez by <br /> email at gagonzalez@sjcehd.com or by telephone at (209) 468-3442. <br /> Gabriel Gonzalez, REHS Nuel C. Henderson, Jr., PG <br /> Registered Environmental Health Specialist Engineering Geologist <br /> c: Jeanne Homsey, PE, ATC, 1117 Lone Palm Avenue Ste 201, Modesto CA 95351 <br /> ec: James Barton, PG, CVRWQCB, 11020 Sun Center Drive #200, Rancho Cordova CA <br /> 95670, via Geotracker <br />