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Quality Assurance

OnSite Environmental Inc. understands that scientifically sound and legally defensible analytical data is critical to our clients' projects. To ensure that our clients' data quality objectives are met, OnSite Environmental Inc. has implemented a quality assurance program that focuses on the following quality control procedures.

  • Maintain appropriate chain of custody of samples submitted to the laboratory.
  • Maintain an effective, on-going quality control program to measure and verify laboratory performance.
  • Monitor daily operational performance of the laboratory and provide timely corrective action.
  • Track corrective actions for resolution and appropriateness.
  • Meet data requirements for accuracy, precision and completeness.
  • Maintain traceability of measurements.
  • Maintain complete records of data and reports generated by the laboratory.
  • Provide sufficient flexibility to allow controlled changes in routine methods and Standard Operating Procedures to meet specific client data quality objectives.
  • Maintain a data review process.
  • Train employees in good analytical techniques and in the requirements of Standard Operating Procedures that they are responsible to perform.

The operation of our laboratory and our quality assurance procedures are based on guidelines established by the Washington State Department of Ecology and the EPA, and are documented in our Quality Assurance Manual (QAM) and Standard Operating Procedures (SOPs). The QAM is available for review by clicking the hyperlink below. SOPs are available for review by contacting the laboratory.

OnSite Environmental, Inc. performs a wide variety of analytical methods under various regulatory programs using published and internally developed validated test methods. Our laboratory participates in semi-annual single-blind performance evaluations studies as part of our on-going certification/accreditation with the Washington Department of Ecology (WDOE) and Alaska Department of Environmental Conservation (ADEC).

Quality Assurance Manual, Revision 9.4 (View PDF Document)