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• • <br /> 76 Service Station No. 11190 -2 - 10 February 2017 <br /> 1206 East March Lane <br /> Stockton, San Joaquin County <br /> 2. Soil samples from the oil-water separator soil boring must also be analyzed for Title 22 <br /> metals. <br /> 3. ATC did not specify which fuel oxygenates soil and groundwater samples would be <br /> analyzed for. Therefore, please assure that soil and groundwater samples are analyzed <br /> for methyl tert butyl ether (MTBE), di-isopropyl ether(DIPE), ethyl tert butyl ether <br /> (ETBE), tert amyl methyl ether(TAME), and tertiary butyl alcohol (TBA). <br /> 4. Naphthalene is a common component of gasoline and is a chemical of concern. <br /> Therefore, please add naphthalene to the list of analytical parameters for all soil and <br /> groundwater samples, and add naphthalene to the parameter list for groundwater <br /> monitoring events, starting with the second quarter 2017. The Second Quarter 2017 <br /> Semi-Annual Groundwater Monitoring Report is due 15 July 2017. <br /> In Summary, Central Valley Water Board staff expect the following: <br /> 1. By 31 May 2017, submit a Well Installation Report. <br /> 2. By 15 July 2017, submit the Second Quarter 2017 Semi-Annual Groundwater <br /> Monitoring Report. <br /> If you have any questions, please contact me by phone at(916) 464-4792 or by email at <br /> vera.fischer@waterboards.ca.gov. <br /> Vera ' cher, P.G. <br /> Engineering Geologist <br /> cc: Mr. Sriram Iyer, Underground Storage Tank Cleanup Fund, Sacramento <br /> Mr. Nuel Henderson, San Joaquin County Environmental Health Department, Stockton <br /> Ms. Jeanne Homsey, ATC Group Services LLC, Modesto <br />