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2 . 2 Samole Analys-es i F', Sample S-8 . 5-1 was tested for total extractable S petroleum hydrocarbons (modified Environmental Protection FAgency (EPA) Method 801.5 , extraction by EPA Method 3550) ; for benzene; toluene, ethylbenzen., and total xylene isomers (BTEX) (EPA Method 8020) ; for organochlorine pesticides- and F, polychlorinated biphenyls (PCB) (EPA Method 8080) ; for organic lead using methods recommended by the California Department of Health Services (DHS) , and the heavy metals 1 cadmium, chromium, lead, and zinc (using atomic adsorption methods) . Samples 5-13-2 , 5-15-3 , and 5-2-4 were tested for 4 total petroleum hydrocarbons as gasoline (TPHg) (modified i F1 EPA Method 80.15, extraction by EPAA Method 3550) ; for BTEX 1 (EPA Method 8020) ; and for tetraethyl lead (TEL) and F1ethylene dibromide (EDB) using methods prescribed by the DHS. All analyses were performed by Mobile Chem Labs , Inc. , of Lafayette, California. Mobile Chem is certified by the DHS to perform the analyses requested. The analyses i performed were required by the Sai Joaquin Local Health F District . The results of the laboratory analyses, as summarized F., in Table 1 , indicated that there in low to non-detectable concentrations of contamination iii soil samples below the locations of the former storage tanks and lines . Low ..concentrations of TPHg were detected in samples 5-8 . 5-1 (2 . 3 F1 ppm) and S-13--2 (1. 1 ppm) ; 0 . 4 ppfi xylene was detected in 5-8 . 5-1. Sample 5-2-4 was found to contain 14 ppm TPHg, 1 . 2 ppm benzene, 2 . 2 ppm toluene, 0 . 2 ppm ethylbenzene, and 1 . 5 ppm total xylene isomers . Heavy etals were present in sample 5-8 . 5--1 at concentrations (generally thought to be F1 acceptable by the California Department of Health Services f and which probably represent background, uncontaminated concentrations , based on our experience. Copies of the laboratory records of analyses are included in Appendix A. F -3- ROGER FOOTT ASSOCIATES, INC.