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the Sampling and Anul-sis Chain is returned to EMCON with the <br /> analytical results. <br /> Groundwater Sampling and Analysis Request <br /> A Groundwater Samplin4 and Analysis Request (see Figure A->), and purchase order, or <br /> both will accompany the samples delivered to each laborator-. These requests serve as <br /> official communication to the labor;uory of the particular analysis(es) required for each <br /> sample and provide evidence that the chain-of-custody is complete. <br /> At minimum, the Groundwater Sampling and Analysis Request includes the following <br /> information: <br /> • Date submitted <br /> • Specific analytical parameters <br /> • Well number <br /> • Sample source <br /> Quality Control <br /> Quality assurance measures will be taken to confirm the integrity of the field and <br /> laboratory data generated during the monitoring program. The procedures used to assess <br /> data quality are described in this section. An evaluation of the field and laboratory_ <br /> quality assurance data will be included in the technical reports. <br /> Field Quality Assurance Procedures <br /> Field quality assurance procedures wiil be included in each nlonitorin`� event and includes <br /> the documentation of field instrument cailbration and collecting and analyzing trip blanks. <br /> and duplicate samples. <br /> Trip Blanks. Trip blanks will be prepared at the same time and location as the sample <br /> containers for a particular sampling event. Trip blanks will accompany these containers <br /> to and from that event. but at no time � ill they be opened or exposed to the atmosphere. <br /> Trip blanks will be used to as,,ess %:tniple container cleanliness and contamination <br /> originating from sample handling ;inti transportation. One trip blank for volatile organic <br /> parameters will typically be included per samplIM-1 e,ent. <br /> FRE/Sample.arc-93!ies-0 A-6 Rev.0,0621/95 <br />