Laserfiche WebLink
SAMPLE HANDLING <br /> Samples are handled during collection and shipment in such a way as to ensure maximum <br /> sample quality and integrity. All samples will be collected by experienced Brown and Caldwell <br /> field personnel. The samples will be collected in containers that are appropriate to the sample <br /> material and the required analyses. All containers will have been precleaned by the analytical <br /> laboratory or the container manufacturer. All sampling equipment will be decontaminated prior <br /> to and between use by washing in laboratory-grade detergent, rinsing with tap water, and then <br /> rinsing with deionized water. <br /> Each sample container will have a label affixed in the field that identifies the date and <br /> time of sample collection, name of sampler, job number, and a unique sample number. 'This <br /> information will be recorded on the boring log or in the field records. Samples are stored and <br /> shipped to the laboratory in a cooled chest. Only analytical laboratories certified by the <br /> California Department of Health Services will be used. <br /> A chain-of-custody form will be used to record possession of samples from the time of <br /> collection to the time of arrival at the laboratory. The sample-control officer at the laboratory <br /> will verify sample integrity and confirm that they were collected in the proper containers, <br /> preserved correctly, and that there is an adequate volume for analysis. If these conditions are <br /> met, the samples will be assigned a unique log number for identification throughout analysis and <br /> reporting. The log number will be recorded on the chain-of-custody form and in the log book <br /> maintained at the analytical laboratory. The sample description, date received, client's name, and <br /> other relevant information will also be recorded. <br />