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' Work Plan-Sail and Groundwater Investigation <br /> Herman&Helen's Marina <br /> May 20, 1996 <br /> Page-6- <br /> according to the Unified Soil Classification System. Drilling logs will contain field observations <br /> ' including soil type, estimated moisture content, presence of staining or odor, and field OVA <br /> measurements. <br /> 1 The soil samples collected from the capillary fringe (5 samples total) will be retained, <br /> ' undisturbed, in the brass liners for laboratory analyses. The liners will be sealed at the ends with <br /> Teflon tape, capped, wrapped with duct tape, and labeled. The samples will be stored in a cooler <br /> chilled with ice and delivered within 24 hours of collection, under chain-of-custody procedures, to <br /> GeoAnalytical Laboratories of Modesto, California. The samples will be analyzed using U.S. EPA <br /> ' Methods and California-approved methods under strict quality assurance measures. <br /> The decon rinsate will be placed in a 55-gallon drum, sealed, labeled, and left on site pending <br /> ' laboratory analyses. Disposal of hazardous materials, if any, will be the responsibility of the property <br /> owner. <br /> 1 <br /> 3.4 Geoprobe - Groundwater Sampling <br /> ' The Geoprobe groundwater sampler is designed to be hydraulically pushed into the aquifer <br /> from the bottom of a borehole, to collect a groundwater sample from a discrete zone (see Appendix B <br /> ' for a description of the Geoprobe groundwater sampling system). The sampler utilizes a sealed, water- <br /> tight, stainless steel sample chamber and PVC screen which is isolated from the surrounding <br /> ' environment as the sampler is advanced. When the desired depth for collection of a groundwater <br /> sample is reached, the sample chamber is opened by pulling back On the body of the sampler, <br /> exposing the screen. When the screen is full, a small diameter Teflon bailer is lowered into the push <br /> rod and a groundwater sample is retrieved from the sample chamber. <br /> ' The bailer sample will be inspected for free product, petroleum odor, and sheen. The sample <br /> ' will be gently poured into two (2) 40-m1 glass volatile organic analyses (VOA) vials, and one (1) 1- <br /> liter amber glass bottle. The sample containers will be sealed, labeled, and placed in a cooler <br /> ' chilled with ice for delivery under chain-of-custody procedures to GeoAnalytical Laboratories, in <br /> Modesto, California for analyses. <br /> 1 <br /> ' • CONDOR <br />