Laserfiche WebLink
AWES, LLC <br /> The project manager is encouraged to gather pertinent laboratory-selection information prior to extensively <br /> defining analytical requirements under the project. A request may be made to a laboratory to provide a <br /> qualifications package that should address the points listed above. Once the project manager has reviewed <br /> the various laboratory qualifications, further specific discussions with the laboratory or laboratories should <br /> take place. In addition, more than one laboratory should be considered. For large-scale investigations, <br /> selection of one laboratory as a primary candidate and one or two laboratories as fall-back candidates should <br /> be considered. <br /> The quality of the laboratory service provided is dependent on various factors. The project manager should <br /> be able to control the quality of the information (e.g., samples) provided to the laboratory. It is extremely <br /> important that the project manager communicate to the laboratory all the requirements relevant to the <br /> project. This includes the number of samples and their matrices, sampling schedule, parameters and <br /> constituents of interest, required analytical methodologies, detection limits, holding times, deliverables, level <br /> of QA/QC,and required turnaround of analytical results. <br /> Field and Laboratory Quality Control <br /> General <br /> Quality control checks are performed to ensure that the data collected is representative and valid data. <br /> Quality control checks are the mechanisms whereby the components of QA objectives ore monitored. <br /> Examples of items to be considered are as follows: <br /> 1. Field Activities: <br /> • Use of standardized checklists and field notebooks; <br /> • Verification of checklist information by an independent person; <br /> • Strict adherence to chain-of-custody procedures; <br /> • Calibration of field devices; <br /> • Collection of replicate samples; and <br /> • Submission of field blanks, where appropriate. <br /> 2. Analytical Activities: <br /> • Method blanks; <br /> • Laboratory control samples: <br /> • Calibration check samples; <br /> • replicate samples; <br /> • Matrix-spiked samples; <br /> • "Blind" quality control samplers; <br /> • Control charts; <br /> • Surrogate samples; <br /> • Zero and span gases; and <br /> • Reagent quality control checks. <br />