Laserfiche WebLink
i <br /> Calibration instructions will be included with each instrument and accompany the instrument <br /> to the field. <br /> 4.3 Field Quality Control Samples <br /> To assess the quality of data from field sampling efforts,field quality control samples will be <br /> collected. For liquid samples,field blanks and travel blanks will be submitted to the analytical <br /> laboratory. Field duplicate samples will be submitted for both liquid and soil samples. Field <br /> j quality control samples will be handled in the same way as the original samples which they <br /> accompany. <br /> 4.3.1 Groundwater Samples <br /> Travel Blanks <br /> The purpose of travel blanks is to detect the introduction of contaminants during <br /> transportation from the field to the laboratory. Travel blanks are assembled by the laboratory, <br /> travel to the field,and return to the laboratory with the samples collected for analysis. These <br /> blanks consist of ultra-pure distilled water sealed in a clean container. Since all samples are <br /> analyzed for volatile organics,one travel blank is required for each sample cooler. <br /> ` Equipment Blanks <br /> I <br /> Equipment blanks will be analyzed to detect the introduction of contaminants during sample <br /> collection. Equipment blanks are prepared in the field using procedures that simulate normal <br /> sampling. A minimum of one equipment blank will be collected for each day of sampling. <br /> Field Duplicates <br /> Duplicates will be collected and analyzed to check for sampling consistency and error. <br /> Duplicate samples will be collected immediately after the primary sample from the same <br /> location with the same equipment and procedures. Ten percent of each sample type will be <br /> f duplicate samples (or a minimum of one duplicate for each parameter suite). <br /> Field blanks and replicates will be analyzed for the same parameters as the samples. <br /> I <br /> 4.3.2 Soil Samples <br /> ' Duplicate soil samples will not be collected during this investigation. <br /> 4.4 Sample Numbering System <br /> A sample numbering system will be used to identify each sample collected. This system will <br /> provide a tracking number to allow retrieval and cross-referencing of sample information. A <br /> listing of the sample identification numbers will be maintained in the field notebook. The <br /> anticipated sample numbering system for this work plan is described below. <br /> 4.4.1 Sample Type <br /> Each sample collected during the sampling program will be identified by a two-character <br /> alpha code: <br /> SFO/CA13ERNET/GROUPS/EBG/CELMONTEIPLANT_33ANORKPLAN_CPT.Ooc 8 <br />