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' 2.4 DECONTAMINATION PROCEDURES <br /> Decontamination procedures were implemented to maintain sample integrity and to prevent cross- <br /> contamination between sampling locations. All re-usable drilling equipment was cleaned with a <br /> power washer prior to use at a new sampling location. <br /> ' 2.5 GROUNDWATER SAMPLING AND TRANSPORT <br /> A groundwater sample was collected from boring B-2 using a dedicated disposable polyethylene <br /> bailer. Groundwater samples were decanted from the bailers directly into laboratory-supplied 40- <br /> ml glass vials each preserved with 0.5 milliliter of 1:1 hydrochloric acid. <br /> Immediately following groundwater sample collection, the samples were labeled, logged on a <br /> ' chain-of-custody record, placed in an ice-chilled cooler and transported to the environmental <br /> laboratory for analysis. The samples were delivered to the laboratory within 24-hours of <br /> collection. The temperature of the ice-cooler upon arrival at the laboratory was noted to be 1.0 <br /> ' degrees Celsius. Sample containers and preservatives were utilized as instructed by the <br /> analytical laboratory. All transportation and handling of the groundwater samples followed chain- <br /> of-custody protocol. A copy of the Chain-of-Custody Record is presented at the end of <br /> ' Appendix C. <br /> 1 <br /> 1 <br /> 1 <br /> 5 <br /> 1 <br />