(13) Data collection and chemical analys(13) Data collection and chemical analyses

(13) Data collection and chemical analyses

Site Assessors should develop data quality objectives and implement data quality assurance and quality control procedures that address sampling, contaminant identification and chemical analyses. These procedures should enable the evaluation of the precision and accuracy of results as part of the assessment of site risk. All other aspects of the risk assessment process should also be subject to quality assurance. Chemical analyses should be performed using approved standard methods and should be performed by laboratories accredited for those analyses in the particular environmental medium. Field analytical methods should be performed by appropriately skilled personnel using approved standard methods. Laboratories should be accredited for relevant analytical procedures by the National Association of Testing Authorities, Australia (NATA), or by an organisation recognised under NATA’s Mutual Recognition Agreement (MRA) Network, or according to an appropriate standard dealing with laboratory quality assurance.