SITE INFORMATION AND CORRESPONDENCE FILE 1

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Mr. Michael Infurna October 30, 1996 Page 2 Indeed, the identification of sensitive receptors is part BP's scope of work for Phase I site assessments performed at BP's retail sites. However, it seems to me that the circumstances in this case are different, and those differences and call into question the need for the information requested in your letter. As mentioned in previous correspondence, the extent of the release has been defined in the immediate vicinity of the site for some time. The release does not appear to have migrated appreciably, and concentrations of hydrocarbons in groundwater have either declined or stabilized. It seems quite reasonable, then, to conclude that the'release does not pose any threat to the potential"receptors" within 2000 feet of the site. No water wells, surface water bodies, mudflats, aquatic plants and animals are located in the area where the release was known to have existed. If any one of the potential sensitive receptors is of particular concern to the county, please give me a call so that I can understand and address the specifics of the concern. Identification of all vaults at the site I have requested that Alisto.Engineering Group identify all of the vaults identified in previous correspondence from the San Joaquin County Public Health Services. The results of Alisto's vault reconnaissance should be reported in the next quarterly groundwater monitoring report. You should note that BP has not owned or operated the site since August 1, 1994. BP may not be able to provide the San Joaquin County Public Health Services with this information because the information may not be available to BP. Sampling; all monitoring,,wells,prior to closure As mentioned earlier, we have sampled all of the monitoring wells last week, and you will receive a report in the near future. I anticipate that this will include sufficient data to obtain a letter of"no further action and case closure". March 11 1996 letter requesting schedule BP does not anticipate further field work at the site, with the exception of the destruction of the groundwater monitoring wells. The schedule requested in San Joaquin County Public Health Services March 11 letter is no longer applicable because the aquisistion of more chemical data is not anticipated.