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7 hydrate a minimum of 30 minutes The grout placement was inspected by the County EHD A locking PVC diaphragm cap was placed on all wells, and each wellhead was finished with a water-resistant bolted steel well monument to deter unauthorized access The concrete seal surrounding the well monuments was sloped to direct surface water away from the monument Measuring marks on the well casings and Christy box elevations were measured to the nearest 0 01-foot by a California-licensed surveyor The results of this survey are presented in Table 1 4 3 Soil Samol_eHandling and Analysis Soil samples obtained for chemical analyses were retained in brass tubes removed from the samplers The ends of the sample tubes were wrapped with aluminum foil and covered with tight-fitting plastic caps The sample tubes were then labeled with the project number, sampling date, boring number, sample depth, and sampler's initials Each sample was then placed in a ZiplocTI bag and immediately stored in a refrigerated ice chest Each afternoon, the samples were picked up by the laboratory courier and transported to Western Environmental Science and Technology's (West's) certified laboratory Any samples collected after the courier's pick-up were kept in a refrigerated cooler until the following day Complete chain-of-custody documentation accompanied the soil samples to the laboratory Copies of the final laboratory reports and chain-of-custody documentation are provided in Appendix E In general, two soil samples from each soil boring were obtained for chemical analyses based on field screening and lithology Each soil sample collected from the borings for chemical analyses was analyzed for TPH-G, EDB, and BTEX Analyses were performed by Modified U S Environmental Protection Agency (EPA) Method 8015, EPA Method 8010, and EPA Method 8020, respectively W 191 6341REPORTS�SITE ASSILOCKEFOROILOCKEFORD RPT IAp,-1 26 19931 CanonieE wiron1 1 ie-,1La a