Laserfiche WebLink
GROUND ZERO ANALYSIS, INC. Quality Control/Quality Assurance Plan <br />3.0 QUALITY CONTROL FIELD SAMPLES <br />A QC program independent from the laboratory's program will be instituted as required. The <br />program would entail "blind" submittals to the laboratory of blank and duplicate samples. Spiked <br />samples may also be submitted from the field where appropriate. The laboratory in-house QC <br />program will include analysis of spiked samples. All QC samples will be assigned independent <br />sample numbers and made indistinguishable from non QC samples. <br />When sampling groundwater, travel blanks will be used to detect the introduction of contaminants <br />during transportation from the field to the laboratory. The travel blanks will be provided by the <br />analytical laboratory. They will be taken to the field and accompany the collected groundwater <br />samples to the laboratory for analysis. The blanks will consist of deionized water or analytically <br />confirmed organic -free water. The blank is numbered, packaged, and sealed in the same manner as <br />the other samples. <br />When required, ten percent of the water samples submitted to the laboratory for analysis will be <br />duplicates. Water sample duplicated will be created filling two sample bottles from the well bailer. <br />If more than one bailer volume is required, each bailer volume will be split between containers. <br />4.0 SAMPLE PRESERVATION <br />Sample containers will be pre -cooled and transported to the site in the cooler. All samples will be <br />preserved as indicated on Table 1 and placed in a refrigerated container immediately after <br />collection. Chemical ice sealed in plastic will be used to cool and maintain samples at a <br />temperature of approximately 4C. A high -low thermometer will accompany the samples to <br />document transport conditions. Further discussion of sample preservation is included in the <br />sampling protocols (Section 11 and 12). <br />5.0 CHAIN OF CUSTODY PROCEDURES <br />5.1 Sample Labels <br />Each sample container will be labeled prior to filling to prevent misidentification. The label will <br />contain at least the following information: <br />- Sample number which uniquely identifies the sample <br />- Project title or number <br />- Location or sample collection <br />- Soil boring or well number, as applicable <br />- Name of collector <br />- Date and times of collection <br />- Type of analysis requested <br />G AData\GROUNDZE\QAQC\QAQC. doc <br />2 <br />