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Four New NJDEP Technical Guidance Documents Released in April 2014

Posted on July 14th, 2014

In April 2014, NJDEP released the following four analytical methods technical guidance documents (links to the documents are provided here):

In April 2014, NJDEP released the following four analytical methods technical guidance documents (links to the documents are provided here) :

These guidance documents were developed in order to assist in the review and use of analytical data generated during the remediation of a contaminated site, Discuss Laboratory Quality Assurance and Quality Control (QA/QC) as a comprehensive program to enhance and document the quality of analytical data, reduce errors and limit vulnerability of LSRPs through more defensible analytical documentation of the data.

A 6 month phase-in period has been established for these guidance documents. As of October 2014, NJDEP will require the new Quality Assurance Project Plan (QAPP) format illustrated in these four guidance documents. According to the Quality Assurance Project Plan Technical Guidance, the QAPP must provide sufficient detail such as:

  • The project’s technical and quality objectives
  • The program-specific and site-specific requirements
  • The intended measurements, data generation or data acquisition methods that is appropriate for achieving project goals/objectives.
  • A summary of the assessment procedures for confirming that the required data was obtained
  • A description of the process for evaluating the limitations on the use of the data obtained

The main components of assessing the quality of the data are the following, “PARCCS” indicators:

  • Precision
  • Accuracy
  • Representativeness
  • Comparability
  • Completeness
  • Sensitivity

What does this mean for Environmental Professionals in New Jersey?

Over the next six months, Environmental Consultants and LSRPs will be re-vamping their QAPPs up to protocol. The QAPP is now expected to be a dynamic investigation workplan document developed prior to each phase of a project to promote more efficient investigation and remediation activities, and it must be constantly re-evaluated. Consultants must comply with the new technical guidance documents in order for analytical data to be defensible to support conclusions made by the data user.

 
Cassondra Weaver
Environmental Scientist


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