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7I S- ANALYTICAL RESULTS The analytical methods are those required in the "Tri-Regional Guidelines" which are directives of the Regional Water Quality Control Board and required by the SJCEHD. The analyses completed were for Total Petroleum Hydrocarbons, as gasoline (TPHG) ; Benzene, Toluene, Ethylbenzene and Xylene (BTEX) via EPA Modified Method 8020/8015 and for the Oxygenates using the EPA Method 8260. A Soil Sampling Results Table 2 displays the analytical results of the soil sampling known to have been done on the subject property. The 4-96 data were of a composite of two soil samples taken at approximately 2 feet below ground surface. The 7-96 data were collected in the UST excavation approximately 2 feet into the native soil below the UST and can be seen in the JPCA tank removal report, dated August 12, 1996. The samples identified with MW or BT were collected during the monitoring well construction which occured in November 1997 . The results of the soil samples in mg/Kg, ie parts per million (ppm) for TPHG and BTEX are shown in Table 2. ND is < 1 ppm for TPHG and < 0.005 ppm for BTEX and MTBE. The soil samples which were analyzed for the Oxygenates had no detectable concentrations of the Oxygenates, the detectable limit are noted on the Laboratory Data Sheets. The Laboratory Data Sheets with Chain of Custody are contained in the Phase II Report completed for the subject property in November 1997. B Groundwater Sampling Results A cumulative tabulation to show groundwater fluctuations and the analytical results, for the quarterly events of groundwater sampling from the Monitoring wells, identified as MW-1, MW-2, MW- 3 and MW-BT in ug/L, i.e. parts per billion (ppb) , for Oxygenates, TPHG and BTEX are shown in Table 3 . The Laboratory Data Sheets, along with detection limits, and Chain of Custody documentation are contained in the quaterly monitoring reports previously submitted by JPCA. 5