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z; F M J. H. KLEINEELDER &ASSOCIATES File No. W-2005-1 •• November 14, 1985 s a Page 4 i a sand unit. B. Monitoring Well A ground water monitoring well (MW-1) was constructed in the soil boring at the completion of drilling and logging. The ground water well was completed with a 2-inch inside diameter flush threaded PVC casing, with well screen sections perforated with 0.020-inch slot from 38 to 58 feet below the ground surface. The annular space between the pine and the wall of the boring was backfilled with Monterey sand to approximately 1-foot above the top of the perforated section. A 1-foot bentonite plug s was placed above the sand pack to provide a seal against surface water infiltration. The well was then backfilled with slurry cement and placed insi-�„ a locking Brooks box. C. �amplina Procedure Soil samples were collected at the time of drilling for chemical analyses. After the sample was removed from the boring, the soil sample was screened for organic vapors with a Photovae TIP photoionization detector (PID) calibrated to 100 ppm octane. The sample was then immediately placed in a refrigerated environment and delivered to Canonie Engineers for analytical testing. A chain-of-custody form was initiated by the geologist on-site and accompanied the sample to the laboratory. Copies of the the chain-of-custody forms are included in Appendix A and the PID results are shown on the boring log. D. Water Sam lin Procedure A water sample was collected from monitoring well MW-1 on August 19, 1985. The well was sampled with a PVC bailer and the sample was visually inspected for product layer or sheen. No visable product layer was observed on the bailer. The well was then developed and purged with the bailer. After approximately five well volumes had been remove,, a water sample was collected in a 1-liter bottle. The