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r �:.. <br /> f <br /> Waterwor!c <br /> Soil Sampling Protocol <br /> i <br /> proposal will be submitted to the Public Health Division of the t <br /> County health Department with proposed boring/sampling locations. <br /> The exact location and number of borings at each site will be <br /> determined in the field by the Project Geologist. <br /> Prior to arriving at the sample site, the drill rig/augers will <br /> be steam cleaned and sample equipment will be washed with <br /> laboratory grade detergent and rinsed twice with tan w<tis�:er and x <br /> once with deionized water. This procedure will be conducted on E <br /> site on all sampling equipment between-each sample interval. <br /> Soil samples will be obtained using a California modified split- <br /> spoon sampler containing three six inch long, two inch diameter <br /> brass tubes. The sampler will be driven 18 inches ahead of the <br /> -. hollow stem auger with a 140 pound drop hammer falling 30 inches. F <br /> The blows to drive the sampler each six inch interval will be <br /> recorded on the boring log. The sampler will be removed from the <br /> boring and opened to reveal the brass tubes. The bottom tuha <br /> will be capped with aluminum foil and plastic end caps, taped and <br /> --. labeled with the following information: data, time, project ID, <br /> Sample ID, name of sampler and type of analysis. This sample <br /> will be immediately placed into a cooler containing dry ice. or <br /> _ "blue ice". The samples will be delivered to a state certified <br /> laboratory under chain of custody protocol with . 48 hours. of <br /> sampling, when possible. <br /> Soil in the uppermost brass tube will be described for texture, s <br /> color, consistency, moisture content, presence of contamination <br /> A and any other distinguishing characteristics. Soil properties <br /> will also be noted in the middle brass tube and from the sampler <br /> shoe. These field observations gill be noted on a log prepared <br /> for each boring/well. <br /> - During sampling, latex gloves will be worn to prevent cross- <br /> contamination with other samples. The disposable gloves will be ; <br /> discarded after collecting samples from each 18-inch sample <br /> drive. <br /> 4 <br /> is <br />