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J. H. KLEINFELDER &ASSOCIATES File No. W-2008••1 November 14, 1985 t4 Page 3 foot above the perforated section and one foot bentonite plug was placed above the sandpack to provide a seal against surface water infiltration. The well was C placed inside a locking Brooks box to protect against vandalism. ' C 3amplinQ Procedure. 4•= Soil samples were collected at the time of drilling for chemical analyses at 5-foot intervals from 10 feet to 45 feet below the ground surface. After F; the sample was removed from the boring, the soil sample was immediately placed in a refrigerated container and delivered to California Water Labs for analytical testing. All samples were screened in the field with a Photoionization detector (PID) for qualitative indication of volatile hydrocarbons. FID values are shown or the boring logs on Plate IV. Selection of samples for quantitative chemical analysis was based on field screening and recommendations of the County Environmental Health representative present at the site during the time of sampling. A chain-of- custody form was utilized by Kleinfelder and accompanied the samples to the laboratory. Copies of the chain-of-custody forms are included in the Appendix. D. Water Sam 1� i Procedure. A water sample was collected from monitoring well (MW-1) on October 19, 1985. The well was sampled with a teflon bailer and the sample was vir•ially inspected for product layer and sheen. No product layer or sheen was observed in or on the bailer. The well was then developed until the water was relatively clear. after development, approximately five well " v:;lumes were removed and a water sample was collected in sample bottles provided by the testing laboratory. The sample bottles were immediately sealed and placed in a refrigerated container and delivered to California