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Quality Assurance Project Plan for Removal Action <br /> APN 209-450-03,Mountain House,CA <br /> Page 7 <br /> 5.1.1 Equipment Decontamination <br /> Non-dedicated equipment will be decontaminated before and after each sample is collected. The <br /> equipment will be washed in a non-phosphate detergent and distilled water, and then double rinsed in <br /> distilled water. A description of the specific methodologies to be followed to maximize proper <br /> decontamination of non-dedicated sampling equipment is provided in the RAW. <br /> 5.1.2 Standards <br /> Laboratory standards used for calibration or to prepare samples will be certified by National Institute of <br /> Standards and Technology (NIST), USEPA, or another equivalent source. The standards will be current. <br /> The expiration date will be established by the manufacturer, or based on chemical stability,the possibility <br /> of contamination, and environmental and storage conditions. Standards will be labeled with expiration <br /> dates, and will reference primary standard sources if applicable. Expired standards will not be used. <br /> 5.1.3 Supplies <br /> All supplies will be inspected prior to their use in the field(by the Condor QA Manager)or laboratory (by <br /> the laboratory QA Manager). The descriptions for sample collection and analysis contained in the <br /> methods will be used as a guideline for establishing the acceptance criteria for supplies. A current <br /> inventory and appropriate storage system for these materials will assure their integrity prior to use. <br /> Efficiency and purity of supplies will be monitored through the use of standards and blank samples. <br /> 5.1.4 Holding Time Compliance <br /> Sample preparation and analysis will be completed within the required method holding time. Holding <br /> time begins at the time of sample collection. If holding times are exceeded, and the analyses are <br /> performed,the associated results will be qualified as described in the applicable validation procedure. The <br /> following definitions of extraction and analysis compliance are used to assess holding times: <br /> • Preparation or extraction completion: completion of the sample preparation process as described <br /> in the applicable method,prior to any necessary extract cleanup. <br /> • Analysis completion: completion of all analytical runs, including dilutions, second-column <br /> confirmations, and any required re-analyses. <br /> 5.1.5 Preventive Maintenance <br /> The Field Manager for Condor is responsible for documenting the maintenance of all field equipment <br /> prescribed in the manufacturer's specifications. Scheduled maintenance will be performed by trained <br /> personnel. Procedures specific to the calibration,use and maintenance of field equipment are presented in <br /> the RAW or applicable equipment manuals. The analytical laboratory is responsible for all analytical <br /> equipment calibration and maintenance as described in their laboratory QA Plan. Subcontractors are <br /> responsible for maintenance of all equipment needed to carry out subcontracted duties. <br /> 5.2 QUALITY ASSURANCE AND QUALITY CONTROL(QA/QC) SAMPLES <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 program <br /> provides a mechanism for ongoing control and evaluation of data quality measurements through the use <br /> of QC materials. Quality assurance and quality control samples will be collected as part of the overall <br /> QA/QC program. <br /> CONDOR <br />