The data quality objectives (DQOs) process has, to varying extents, been included in the Australian guidance since 1997, including AS 4482.1 1997 and 2005, NEPM 1999, NSW auditor guidelines 2006, and NEPM 2013. Despite the increasing attention by regulators to this design component of contaminated sites investigations, the confusing and at times contradictory Australian guidance has, in part, led to a poor uptake and interpretation of the process as designed by the USEPA.
This presentation aims to explain the origins and details of the DQOs, and to remove some of the confusion within the Australian guidance, thereby improving the use of the DQOs process in the experimental design of site investigations.
Marc is a principal environmental scientist at Easterly Point Environmental, and is a NSW EPA accredited site auditor (2001) and a Qld EHP contaminated land auditor/third party reviewer (TPR) (2006). His professional interests include amongst others, experiment design through the use of the DQOs process, for which he lectures at the UTS CSARM short course, and the use of statistics in environmental assessments.