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CAMBRIA Cambria, Equiva, RWQCB, and SJCPHSIEHD personnel attended a meeting at the SJCPHS/EHD's office on June 19, 2001 to discuss San Joaquin County sites During this meeting, a deadline of June 29, 2001 was established for submittal of an investigation report summarizing the activities at the subject site Cambria submitted this report on June 25, 2001 ANTICIPATED THIRD QUARTER 2001 ACTIVITIES As discussed during our meeting and recommended to our June 25, 2001 Site Investigation Report, Cambria will submit a work plan proposing soil vapor extraction in the vicinity of the northwestern dispenser area to remove the petroleum hydrocarbons and methyl tertiary butyl ether(MTBE)from soil in this area Blaine will coordinate the sampling event with the former Chevron station located at 301 West Kettleman Lane according to the existing sampling schedule, gauge and sample the wells, and tabulate the data There will be a slight change in the groundwater analyses, as discussed below Cambria will prepare a groundwater monitoring report . CONCLUSIONS AND RECOMMENDATIONS Cambria recommends double-purging all monitoring wells prior to sampling We will also request that Blaine obtain the hydrochloric acid-preserved water sample vials from the laboratory to ensure that there is no methanol present in the preservative We recommend analyzing samples from all three wells, an equipment blank, and a trip blank for total petroleum hydrocarbons as gasoline, benzene, toluene, ethylbenzene, xylenes, MTBE, methanol, and ethanol by EPA Method 8260B Because they have not been detected, Cambria recommends discontinuing analyses for ethyl tertiary butyl ether, tertiary butanol, di-isopropyl ether, tertiary amyl methyl ether, 1,2-DCA, and EDB We will implement these changes to the quarterly protocol beginning with the third quarter 2001 sampling event, as discussed on the telephone with Harlin Knoll of the SJCPHSIEHD on July 19, 2001 1346 2