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Chain Of Custody Record And Sample Analysis Request Form <br /> A chain of custody record for each container or sample will be used to track possession of the <br /> samples from the time they were collected in the field until the time they are analyzed in the <br /> laboratory. The chain of custody record will contain the following information: <br /> 1. Site Name <br /> 2. Signature of collector <br /> 3. Date and time of collection <br /> 4. Sample identification number(s) <br /> 5. Number of containers in sample set <br /> 6. Description of sample and container(s) <br /> 7. Name and signature of persons, and the companies or agencies they <br /> represent,who are involved in the chain of possession <br /> 8. Inclusive dates and times of possession <br /> 9. Requested analysis for each sample <br /> Sampling Equipment Decontamination <br /> All equipment used for sampling will be decontaminated prior to use. All equipment used for <br /> collection of more than one sample, such as bailers and sampling shoes, will be decontaminated <br /> between each use to prevent cross contamination between samples. Decontamination will be <br /> conducted on an impermeable surface or in buckets and all decontamination effluent will be <br /> contained. Sample equipment to be used for pesticides and organic analysis will be washed in a <br /> laboratory grade detergent (Alconox or equivalent) and rinsed with tap water and/or deionized <br /> water. <br /> groundzc\gagc\fldtank.doc Page 2 of 2 <br /> B-2 <br />