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Y <br /> at the Site has been directed toward the east/northeast <br /> • Groundwater Analytical Results <br /> The chemical analytical results of groundwater samples obtained from monitor wells at the Site on <br /> October 4, 1995 are summarized in Table 2 Chemical analytical results indicate that no TPHg or <br /> BTEX constituents were detected at or above the laboratory method detection limits The chemical <br /> data is consistent with the data from the previous quarterly sampling event Attachment I1 contains <br /> photocopies of the laboratory analytical reports and chain-of-custody forms <br /> Wastewater Disposal <br /> Purge water generated from the groundwater monitor wells was disposed of on-site with approval <br /> from the San Joaquin County Public Health Services <br /> SITE REMEDIATION <br /> Soil Remediation System <br /> Soil vapor extraction has been selected as an effective technology to remediate the soil impacted with <br /> petroleum hydrocarbons at the Site The existing soil vapor specifications will be augmented to reflect <br /> the change from internal combustion to catalytic oxidation treatment which will further decrease levels <br /> of petroleum hydrocarbons to levels where granular activated carbon may be used A workplan for <br /> the installation of the system was submitted to the County in September 1994, and approved in <br /> October 1994 At this time permits and equipment for the installation of the remediation system are <br /> being procured It is anticipated that the installation of the soil remediation system will be completed <br /> during the first quarter of 1996 <br /> This report presents our understanding of existing conditions at the subject Site The conclusions <br /> contained herein are based on the analytical results and professional judgment which are in accordance <br /> with current standards of professional practice, no other warranty is expressed or implied SECOR <br /> assumes no liability for exploratory borings or data reported by other consultants or contractors <br /> Sincerely, <br /> SECOR International Incorporatedo <br /> d`� �'��'c►�''.� <br /> i1 it-95 <br /> Todd J Brown John E Bower, R G �► �� <br /> Staff Geologist Senior Geologist ��CFC!►L` <br /> TJBIJEB tb <br /> Attachments <br /> cc Harland Knoll, San Joaquin County Public Health Services <br /> Elizabeth Thayer, California Regional Water Quality Control Board <br /> SECOR Inicrmuonal,Inc 'rum Ohl Company <br /> g395Man 2 11 Decca bcr 1995 <br />