SITE INFORMATION AND CORRESPONDENCE

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r 1 1 1 M E M O R A N D U M TO: Ms. Lisa Brown, District Attorney's Office FROM: Pam Violett, R.E.H.S. October 26 DATE: , 1992 RE: Village West Marina, 6649 Embarcadero Drive, Stock n On April 21, 1992, three Underground Storage Tanks (UST's) were removed from the above referenced facility. At the time of removal, visual inspection of the tank pit and stockpile revealed contamination. On May 26, 1992, EHD received a copy of the sample results from UST removal. Detectable stockpile levels were as follows: TPH-G 21 ppm & 8. 9 ppm, Toluene .02 ppm & . 0093 ppm, Xylene .64 ppm & . 17 ppm, TPH-D 110 ppm & 230 ppm. On this date EHD also received a letter from Pegasus Group, property owners, indicating they acknowledged that there is contamination at the site, and they are currently in the process of obtaining bids for the remediation. On June 8, 1992, Margaret Lagorio, Lead Senior R.E.H.S, had a phone conversation with Bill Sudhoff, President of homeowner's assoc. for the condominiums at Village West, regarding residents complaining of vapors and dust resulting from tank excavation and stockpile. Ms. Lagorio informed Mr. Sudhoff EHD estimated stockpile to be 50 cu. yds. , and that the soil was covered. Ms. Lagorio explained that the property owners had to decide how they wanted to remediate the soil: 1) haul it off (requires soil sample analysis) to a landfill 2) treat it on site (bioremediation or aeration with proper testing and permits) . Ms. Lagorio stated that if the home owners had a "view easement" then the property owners could be informed to move the soil or the home owners would take legal action. This would initiate the property owners proposing to EHD how they would remediate the stock piled soil. On June 10, 1992, I witnessed sampling of the product lines that are being closed in place. On June 15, 1992, Margaret Lagorio had a phone conversation with Dwight Davis of the Pegasus Group. In it Ms. Lagorio discussed the following items regarding the site: 1) Groundwater investigation will be required, minimum 3 monitoring wells, 2) Stockpiled soil at site should not be put back into excavation as contamination will continue to leach into groundwater, 3) May be able to transport soil to landfill such as Forward, Inc. or BFI - need to contact them regarding testing requirements and price. Aeration of soil at a different place at the site may require a permit from APCD, 4) need to hire a consultant to propose further work.