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09 July 2007 <br /> AGE-NC Project No. 95-0106 <br /> Page 2 of 2 <br /> additional vapor intrusion studies would be required at that time. However, if no petroleum <br /> hydrocarbon-impact is detected in soil vapor from these two areas, it is unlikely to be <br /> detected along the north side of the house. - <br /> • Collection of soil vapor samples of possibly limited usefulness from the front of the house <br /> with the GeoProbe Unit would entail serious damage to the front lawn area. <br /> AGE proposed to eliminate a total of one soil boring and four soil-vapor borings, all located along <br /> the front of the house, from the original work plan. The revised locations of soil vapor and <br /> continuously cored soil borings are illustrated on Figure 3; the proposed probe boring locations <br /> maybe slightly modified due to field observations or access issues. <br /> Please contact our office at (209) 467-1006 if you have any questions or comments. <br /> Sincerely, <br /> GP <br /> Advanced GeoEnvironmental, Inc. ���R�:✓ Oa <br /> CALJiN F= <br /> r <br /> _EE <br /> # <br /> 'Jo.7327 <br /> Rebecca E. Nata Calvin F. Lee <br /> Staff Scientist Senior Project Geologlf tOF <br /> California Professional Geolbgist No. 7327 <br /> cc: Mr. Weldon Church <br /> Advanced GeoEnvironmental,Inc. <br />