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' Draft: Apri15, 1999 Page C-5 <br />' - Fill out the sample bottle labels and attach to the appropriate sample bottles. Write <br />in all information except the sampling time. <br />t - If a bailer is used, the bailer should be lowered slowly into contact with the water in <br />the well. Whether using a bailer or submersible pump, collect the sample from the <br />' same depth within the screened interval in the well each time the well is sampled. <br />- Field pazameters (temperature, pH, and conductivity) have been measured during <br />' purging. Collect a sample via bailer or pump for the Final field pazame[er <br />measurement. Record in the log book and on the groundwater sampling data sheet. <br />' - Collect samples and fill sample containers in the appropriate order, as determinated <br />by the analytical laboratory or the environmental manager whether using a bailer or <br />' a submersible pump. Filtering procedures aze described in Section C.3.6. <br />t - Record the time of sampling in the field log book, on the groundwater sampling data <br />sheets, and on the sample bottle labels. <br />' - Wipe off sample bottles with a paper towel. Write the time of collection on each <br />label, initial, and cover with cleaz tape. <br />' Place samples in bags on ice in a cooler. <br />- Replace and lock the well cap. <br />t - Complete field documentation. <br />C.3.5 Sample Ideotification/Labeling <br />Proper sample identification is critical to data management and data quality. This section <br />describes the sample identification and documentation, to assure that the quality of samples is <br />maintained during collection, transportation, storage, and analysis. <br />Documents used to account for sample custody include: <br />' Sample identification numbers <br />- Sample tags or labels <br />' - Custody seals <br />' Chain-of-Custody records <br />- Field log books <br />' Analytical records <br /> <br />Agapito Associates, Inc. <br />