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LA Ccry of Stockton A68107.07A <br /> May 29, 1996 Page 6 <br /> L, 4,2 Laborato Testing Program- Soil and groundwater samples selected for chemical <br /> analysis will be tested for benzene, toluene, ethylbenzene, and xylenes (BTEX); and total <br /> petroleum hydrocarbons - diesel range constituents (TPH-D) as indicator parameters for the <br /> 1" limits of PPC migration. In addition, consistent with the request of the SJCPHS, the <br /> samples will also be analyzed for methyl tertiary butyl ether (MTBE). Proposed preparation <br /> and analytical methods for the laboratory analyses are summarized in Table 1. <br /> l ire a ttt�n Md An <br /> Type of Analysis Preparation Method Analytical Method Method Detection I.iimil <br /> 4+ <br /> Water Sample Analyses <br /> Benzene,Toluene, 50301 6022 0.5 peg/L <br /> Ethylbenzene,and Xylenes <br /> l" (BTEX) <br /> Total Petroleum 35101 GC/FID 50µg/L <br /> Hydrocarbons- Diesel Range <br /> V Constituents(TPI-I-D) <br /> Methyl Tertiary Butyl Ether 5030 602 5µg/L <br /> (MTBE) <br /> 4r <br /> Soil Sample Analyses <br /> Benzene,Toluene, 5030 80201 0.005 mg/kg <br /> Ethylbenzene,and Xylenes <br /> (BTEX) <br /> Total Petroleum 5030 GC/FID 10 mg/kg <br /> Hydrocarbons-Diesel Range <br /> �+ Constituents(TPH-D) <br /> Methyl Tertiary Butyl Ether 5030 8020 0.05 mg/kg <br /> (MBTE) <br /> GC/FID = Gas Chromatography/Flame Ionization Detection <br /> r mg/kg = milligrams per kilogram <br /> µg/L = micrograms per liter <br /> kir <br /> 1 United States Environmental Protection Agency(U.S. EPA), 1986 <br /> 2 California State Water Resources Control Board, 1988 <br /> V <br /> Twining is a California Department of Health Services certified hazardous waste laboratory <br /> (Certificate No. 1371) for the analyses outlined herein. A description of laboratory quality <br /> assurance/quality control procedures proposed for the analyses are described in the SOPS <br /> presented in Appendix A. <br />