2001-06-06_GENERAL DOCUMENTS - M1974052

Home Browse Search

CGRS, Inc. • References (e.g. other clients); and • Experience (UST, RCRA and other environmentally related projects). • Service; • Turnaround time; and • Technical input (e.g., recommendations on analytical procedures). The project manager is encouraged [o gather pertinent laboratory-selection information prior to extensively defining analytical requirements under the project. A request may be made to a laboratory to provide a qualifications package that should address the points listed above. Once the project manager has reviewed the various laboratory qualifications, further specific discussions with the laboratory or laboratories should take place. Tn addition, more than one laboratory should be considered. For large-scale investigations, selection of one laboratory as a primary candidate and one or two laboratories as fall-back candidates should be considered. The quality of the laboratory service provided is dependent on various factors. The project manager should be able to control the quality of the information (e.g., samples) provided to the laboratory. It is extremely important that the project manager communicate to the laboratory all the requirements relevant to the project. This includes the number of samples and [heir matrices, sampling schedule, parameters and constituents of interest, required analytical methodologies, detection limits, holding times, deliverables, level of QA/QC, and required turnaround of analytical results. Field and Laboratory Oualitv Control General Quality control checks are performed to ensure that the data collected is representative and valid data Quality control checks are the mechanisms whereby the components of QA objectives ore monitored. Examples of items to be considered are as follows: I. Field Activities: • Use of standardized checklists and field notebooks; • Verification of checklist information by an independent person; • Strict adherence to chain-of-custody procedures; • Calibration of field devices; • Collection of replicate samples; and • Submission of field blanks, where appropriate. 3. Analytical Activities: