Ensuring High Quality Aqueous Emissions Monitoring Data

Aqueous emission sampling and monitoring is a requirement of virtually all EPA licenses and both the sampling and analysis stages require a high level of competency and quality control in order to ensure the resulting data is reliable, accurate and traceable.   A key element of quality of data is commitment at all staff levels; management, supervisors, and technicians, to the process from sampling to report issue. 

Quality must be:

  • Managed (cannot be left to chance and must be given strong managerial support),
  • Clear, understood and unambiguous,
  • Supervised,
  • Defined through written Policies and Procedures.

Where sampling and analysis is not carried out by licensee staff the licensees should audit water sampling and monitoring service providers to review items such as personnel competency and training details, quality management systems, equipment maintenance and calibration records and standard operating procedures to ensure they fulfill all licence and quality requirements.

The sections below provide details on guidance documents and a general overview of the elements that need to be considered in order to produce good quality, reliable, emissions monitoring results.

Water emissions monitoring quality control can be divided in 4 distinct areas.  Specific guidance on each area can be found at the following links:

Agency Conference on High Quality Aqueous Emissions Monitoring Data; 2011

This one day conference was aimed at providing practical information to attendees on the issues of sampling and monitoring of Industrial Aqueous Emissions and related topicss.

View details of the day’s presentations and well as useful checklists for licensees use when assessing laboratory quality systems and methods can be found at the following link.