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4.0 INVESTIGATIVE WORK <br /> 4.1 Workplan Submission <br /> On March 15,2005 Mr. Patel retained this office to prepare and implement a workplan to <br /> complete the limited site assessment at the St. Francis Motel site. The workplan was approved by <br /> PHSEHD in a letter dated June 14, 2005. <br /> Additional background work was conducted by this office during September 2005 to determine <br /> the location of the septic tank and lines leading into and out of the system. On November 18, <br /> 2005 PHSEHD directed Mr. Patel to implement the approved workplan. Mr. Patel was out of <br /> the country until late January,2006 and no work was conducted during his absence. On February <br /> 15, 2006 a hearing was held for the Board of Housing Appeals of the County of San Joaquin <br /> which issued a direction letter to Mr. Patel to take necessary action to stay in compliance with the <br /> PHSEHD directives. An amended workplan was submitted by this office for Mr. Patel to <br /> PHSEHD on February 14, 2006. The workplan was verbally approved by PHSEHD and work <br /> started during March,2006. <br /> 4.2 Septic Tank Sampling <br /> On March 29,2006 the St. Francis Motel septic tank was sampled by GeoAnalytical Laboratories <br /> Inc. personnel under direction of Muir in the presence of PHSEHD staff. A single grab sample <br /> was collected and analyzed using the following USEPA Test Methods: (1)pH using USEPA <br /> Test Method 150.1; (2)iodine using USEPA Test Method SM4500-I B; (3)chlorides using <br /> USEPA Test Method 300.0 and; (4) organic volatile compounds using USEPA Test Method <br /> 8260B. <br /> The following constituents were reported to be present from GeoAnalytical Laboratories Report <br /> #S6C2905 from the Septic Tank sample. <br /> Analyte Method Reporting Limit Analytical Result <br /> Iodide USEPA 345.1 2.0 mg/I Below analytical method <br /> detection limit <br /> Iodine USEPA SM4500-I B 0.5 mg/I Below analytical method <br /> detection limit <br /> pH USEPA 150.1 NA 7.0 units <br /> Chloride USEPA 300.0 1.0 mg/l 97 mg/1 <br /> Motor Oil USEPA 8015M 0.05 mg/l 4.26 mg/1 <br /> Diesel USEPA 8015M 0.05 mg/l 6.99 mg/1 <br /> Main\Environmental\St.FrancisMotel\Report\Report05252006.wpd 8 <br />