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water sample. For example, NCS -01-S indicates that Sample No. 01 is a soil sample. A detailed <br />description of sampling locations will be entered in the field logbook. <br />Sample Labels <br />1 A sample label will be affixed to each sample container as samples are obtained and <br />containerized. The label will indicate the NCS Stockton facility, sample I.D. number, the name <br />of the sampler, the time and date of sample collection, any preservatives used, field observations, <br />such as PID readings, and analyses requested. Once the label is completed, a clear plastic tape <br />will be placed over the label to protect it from damage. <br />Containers <br />Table 1 identifies the containers to be used for soil and ground -water samples. All <br />1 samples will be properly containerized and packaged to maximize sample integrity during <br />shipment. <br />Soil samples will be collected directly from the backhoe bucket or from the excavation <br />pit. All brass tubes packed for analysis will be immediately covered on both ends with aluminum <br />foil and capped with teflon covers. Each end will then be sealed with duct or masking tape. A <br />sample label will be affixed to the tube, and clear tape will be used to cover the label. The tube <br />1 will then be placed in a resealable plastic bag. <br />1Ground-water samples will be containerized in the appropriate glass or plastic containers <br />identified in Table 1. Clean containers with the appropriate preservatives will be provided by the <br />laboratory. Ground -water samples will completely fill each container until a positive meniscus <br />forms at the top. The volatile organic analysis (VOA) containers will be checked for air bubbles, <br />and any bubbles present will be removed by adding additional liquid. The cap, complete with <br />teflon inner lining, will be tightly sealed onto the container. A sample label will then be affixed <br />to the container, and clear tape will be used to cover the label. The containers will then be <br />placed in resealable plastic bags. <br />1 <br />Preservation <br />Preservation requirements for various samples are listed in Table 1. Ground -water <br />samples to be analyzed for BTEX and TPH will be preserved with hydrochloric acid. The <br />1 laboratory will add the required volume of preservative to the sample container prior to shipmentment <br />1 16 <br />