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5.3 Quality Assurance and Quality Control Staples <br /> The purpose of this QA/QC program is to produce data of known quality that satisfy the project <br /> objectives and that meet or exceed the requirements of the standard methods of analysis. This <br /> program provides a mechanism for ongoing control and evaluation of data quality measurements <br /> through the use of QC materials. QA/OC samples will be collected as part of the overall QA/QC <br /> program. <br /> The following QC water samples will be collected by either Consultant field personnel or <br /> prepared by Kiff. Kiff will analyze all of the blank and field duplicate samples. Air samples will <br /> be collected in 1 liter Summa canisters prepared by Air Toxics. Air Toxics will analyze all of the <br /> blank and field duplicate samples. <br /> Laboratory Reagent Blanks <br /> A laboratory reagent blank is deionized, distilled water that is extracted by the laboratory and <br /> analyzed as a sample. Analysis of the reagent blank indicates potential sources of contamination <br /> from laboratory procedures (e.g., contaminated reagents, improperly cleaned laboratory <br /> equipment, or persistent contamination from the presence of certain compounds in ambient <br /> laboratory air). A reagent blank will be analyzed at least once each day for each method used by <br /> the laboratory for that day. <br /> Field Equipment Blanks <br /> A field equipment blank is a sample that is prepared in the field by pouring deionized, distilled <br /> water into cleaned sapling equipment. The water is then collected and analyzed as a sample. <br /> Field equipment blanks are typically submitted as blind samples to the laboratory(i.e., given <br /> fictitious name so that they will not be recognized by the laboratory as a blank sample). The field <br /> equipment blank gives an indication of contamination from field procedures (e.g., improperly <br /> decontaminated sampling equipment, cross-contamination). Field blanks will be collected at a <br /> minimum frequency of at least one per day, or 5 percent of primary samples when nondedicated <br /> Environmental/LNC/Workplan/Appendix3.wpd 12 <br />