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93-44-334-02 <br /> Mr. Scott Barde <br /> CIVICBANK OF COMMERCE <br /> July 7, 1993 <br /> Page 3 <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> Based on the data gathered to date, Converse draws the following <br /> conclusions regarding the subject site: <br /> io The analytical results indicate that the petroleum hydrocarbons, in <br /> the five areas where hydrocarbon staining was noted, extend below <br /> the initial.near-surface excavation depths. <br /> • The vertical and lateral extent of petroleum hydrocarbons in the <br /> soil has not been characterized. <br /> Converse makes the following recommendations regarding the subject <br /> site: <br /> • This report should be submitted to the San Joaquin County, <br /> Environmental Health Division (SJCEHD) and instructions should <br /> obtained from the SJCEHD before conducting any further remedial <br /> actions. <br /> • Any additional analyses of soil samples collected from the <br /> subsurface should,!!be spectated for diesel, oil, and grease using <br /> separate EPA methods to more closely characterize the type of <br /> hydrocarbons detected in the soil samples. <br /> LIMITATIONS <br /> This report has been prepared"by the staff of Converse Environmental <br /> West (Converse) under the professional supervision of the Engineer <br /> and/or Geologist whose seal(s) and signature(s) appear hereon. <br /> The findings, recommendations, specifications, or professional opinions <br /> are presented, within the limits prescribed by the Client, after being <br /> prepared in accordance with generally accepted professional engineering <br /> and geologic practice. We make no other warranty, either expressed or. <br /> implied. <br /> EF <br /> Converse Envimnmental West CVC BANK OF CvIRC PSA PROJ\TRACY PH 2\LTR RPT <br />