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SOP NUMBER 0.0 <br />To prevent cross contamination between wells it is strongly recommended that dedicated, in- <br />place pumps be used. As an alternative, the potential for cross - contamination can be reduced by <br />performing the more thorough decontamination procedures in accordance with SOP No. ** <br />Decontamination Procedures. <br />4.3 FIELD QUALITY ASSURANCE/QUALITY CONTROL PROCEDURES AND SAMPLES <br />QA /QC samples are designed to help identify potential sources of sample contamination to <br />evaluate potential error introduced by satnple collection and handling. All QA/QC samples are <br />labeled and sent to the laboratory with other samples for analysis. The type and number of <br />QA/QC samples are defined in SOP No. ** Sample Management. <br />4.4 SAMPLE HANDLING <br />Page I I of 14 <br />Monitor Well Groundwater Sampling <br />Sample containers, preservatives, and analyses are specified in SOP No. "", Sample <br />Management. Samples will also be labeled and handled as described in SOP No. xx <br />5.0 DOCUMENTATION <br />Documentation of observations and data acquired in the field will provide information on the <br />activities concluded and also provide a permanent record of field activities. The observations <br />and data will be recorded with waterproof ink in a permanently bound weatherproof field <br />logbook with consecutively numbered pages, and on field data sheets. <br />5.1 FIELD SAMPLING DATA SHEET <br />A field sampling data sheet for groundwater samples (Figure 1) will be completed at each <br />sampling location. The data sheet will be completely filled in. If items on the sheet do not apply <br />to a specific location, the item will be labeled as not applicable (NA). The information on the <br />data sheet includes the following: <br />• Well number <br />o Field book reference number <br />• Sampling method <br />• Field personnel <br />c Date and time of sampling <br />• Sample identification number <br />• Person performing sampling <br />• Water level <br />o Depth to bottom of well <br />• Screened interval <br />0 -11 <br />