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TO E RO E K SOP No.004,REv.2 <br /> Assocmns,INC SOIL SAMPLING <br /> -� PAGE 14 <br /> • Inspection of field parameter data sheets (if required) to determine that all field <br /> parameters have been collected and data entries are accurate and complete. <br /> • A cross-check of sample labels to field notes and the chain-of-custody to verify <br /> sample identification, type of analyzes, and number and type of containers and <br /> preservatives. <br /> • A cross-check of the field log book and samples to the requirements of the <br /> site-specific work plan to determine that all required data have been collected and <br /> procedures have been followed and documented thoroughly and correctly. <br /> This field QC check is required to ensure that evidence collected during the investigation <br /> will withstand scrutiny during litigation. The field sampler should allocate an appropriate <br /> amount of time each day to conduct this field QC check. <br /> 3.0 CAUTIONS <br /> Seemingly safe sites or situations may still present life-threatening conditions. Even the best <br /> monitoring equipment cannot replace astute observation and common sense. Be alert and <br /> aware of surroundings and conditions at all times. <br />