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i. <br /> Beverly Garcia <br /> 945 Grant Street/730 Channel Street,Stockton,CA <br /> Page 2 of 2 <br /> Please include soil and groundwater analyses for dibromoethene (EDB), methanol, and ethanol, <br /> in addition to the analyses for: total petroleum hydrocarbons quantified as gasoline (TPH-G) by <br /> Environmental Protection Agency (EPA) SW-846 method W15B; total extractable petroleum <br /> hydrocarbons quantified as diesel (TEPH-D), total extractable petroleum hydrocarbons quantified <br /> as motor oil (TEPH-MO), and total extractable petroleum hydrocarbons quantified as kerosene j <br /> (TEPH-K) by EPA method 8015B; benzene, toluene, ethyl benzene, and total xylene (BTEX), <br /> 1,2-dichloroethane (1,2-DCA), tertiary-butyl alcohol (TBA), methyl tertiary-butyl ether(MTBE), <br /> di-isopropyl ether (DIPE), ethyl tertiary-butyl ether (ETBE), and tertiary-amyl methyl ether <br /> (TAME)by EPA SW-846 method 8260B; and lead by EPA SW-846 method 7420. Please ensure <br /> the reporting limit for 1,2-DCA is at least 0.5 micrograms per liter(lug/L) in groundwater. Also, j <br /> if the Total Threshold Limit Concentration (TTLC) result for lead is 50 milligrams per kilogram <br /> (mg/kg) or greater, then proceed and analyze the sample for Soluble Threshold Limit <br /> Concentration (STLC). <br /> Please note that the San Joaquin County Public Health Services Environmental Health Division <br /> Well Standards indicates that free-fall installation of sealing material, without the aid of tremie or <br /> grout pipe, is prohibited unless the interval to be sealed is dry, and in no case where the interval is <br /> over 30 feet in depth. <br /> I <br /> If you have any questions regarding this letter please contact Vicki McCartney, REHS, by <br /> telephone at (209)468.3456, or by e-mail at vmccartney@sjcehd.com. <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> 647 <br /> ./ �- <br /> � � LAAt <br /> RENS Margaret L orio, Su Cling EHS <br /> Vicki McCartney, g g P <br /> Unit IV-Site Mitigation Unit IV- Site Mitigation ; <br /> cc: Lee H. Morse—Condor Earth Technologies,Inc. <br /> James L.L.Barton-CVRWQCB <br /> 1 <br /> i <br /> I <br />