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i i ffE!'i1..�l1 I WZ I INC. I i May 23, 1997 I i Mr. Harlan Knoll San Joaquin County Public Health Services Environmental Health Division 304 East Weber Avenue Stockton, California 95202 Re: Letter Report of Summary of Analytical Results for Soil Sampling of Remediation Pile and Site Closure Request for Hi Hopes Venture Project, Lodi Dear Mr. Knoll: I l Enclosed are copies of soil sample laboratory E nalytical results and chain-of-custody document for the samples obtained from the rerrediation pile for the Hi Hopes Venture { project in Lodi. The samples were collected by m on March 30, 1997, and submitted to Sherwood Labs Corporation Hilmar facility for analysis. The soil samples were analyzed for BTEX and Total Petroleum Hydrocarbon as Gasoline fuel using U.S. Environmental Protection Agency test methods 8020 and 8015 ( odified). A map depicting the location of the collection poi its of the soil samples is presented as i Exhibit 1. The remediation pad is currently approxi ately 12 inches thick over the majority of the area. The soil samples were collected from a depth of approximately six inches below ground surface and represent a composite of approximately eight individual collection points within a radius of 15 feet from the point indicated on the map. All samples were reported to contain volatile organic compounds below analytical laboratory detection limits. Based on initial basel ne sampling and past remediation pile sampling, we believe that the gasoline fuel in the soil has been remediated to acceptable levels and that no further remediation effort is warranted. We propose to remove the upper six inches of remediated soil and place it immediately south of the current remediation pad. This soil will still be located on the same property parcel and will function as the final location of the remediated soil. 08220010.016 1 4700 STOCKDALE HIGHWAY,SUITE 120 BAKERSFIELD,CALIFORNIA 9,'309 (805) 326-1112 FAX: (805)326-0191