Schedule B3 - COAG Standing Council on Environment and Water

Contents
Laboratory analysis of contaminated soil
Page
1 Guideline for the laboratory analysis of potentially contaminated soil ..............................1
1.1 Introduction 1
1.2 Audience 1
1.3 Exclusions 1
1.4 <strong>Schedule</strong> structure 1
2 Laboratory analysis of potentially contaminated soil..............................................................2
2.1 Scope 2
2.2 Philosophy of methods selected 2
2.3 Referenced methods and use of alternative methods 3
3 Determinative methods..................................................................................................................4
3.1 Screening tests 4
3.2 Method validation 4
3.2.1 Confirmation of organic compounds (for non-specific techniques) 5
3.3 Assessing analyte leachability and bioavailability 5
3.4 Use of results 6
4 Quality assurance ............................................................................................................................7
4.1 Definitions 7
4.2 Recommended minimum QC procedures 7
4.2.1 Process batch 7
4.2.2 Analysis blank 8
4.2.3 Duplicate analysis 8
4.2.4 Laboratory control sample 8
4.2.5 Matrix spikes 8
4.2.6 Surrogate spikes 8
4.2.7 Internal standards (where appropriate) 9
4.3 Method validation 9
4.3.1 Accuracy 10
4.3.2 Precision 10
4.3.2.1 Repeatability 10
4.3.2.2 Confidence limit and confidence interval 10
4.3.2.3 Reproducibility 11
4.3.3 Percent recovery 11
4.3.4 Limits of detection and reporting 11
4.3.4.1 Method detection level 11
4.3.4.2 Practical quantitation limit 12