6. Noosa River DMP Ver0 (Combined)

                                       Requesting Endorsement of Sediment Sampling and Analysis Plan
                                              BMT (OFFICIAL)



•   Data validation objectives - All laboratory analyses will be validated in accordance with Appendix A
    of NAGD (which are specific to marine sediments) to confirm suitable data quality for undertaking a
    rigorous characterisation of the proposed dredge material. This will involve an assessment of the
    following:
    -   Sample holding times and storage conditions
    -   Laboratory blanks, duplicates and surrogate/matrix spikes
    -   Field triplicates samples, triplicate sample splits and trip blank.
•   Completeness objective - At least 95% of all data received should be validated as suitable for use.
•   Chain-of-custody form objectives – completed forms shall accompany the samples.
•   Laboratory sample receipt objectives – the laboratory shall provide written confirmation on whether:
    the sample names/numbers received agree with chain-custody forms; samples were received intact;
    samples were received at specified temperature; and samples were received within appropriate
    holding times.
Note QA/QC statics will only be applied to metals and nutrients for the purposes of this SAP.

Table 3.4 Data Quality Objectives for Data Validation
Parameter                                Data Quality Objective
Holding Time                             Samples received within specified holding time (NAGD Appendix
                                         H)
Field Triplicate Samples                 Relative Standard Deviation <50%
Triplicate Split Samples, including      Relative Standard Deviation <50%
inter-laboratory samples
Laboratory Blanks                        At or near the Limit of Reporting (LOR)
Laboratory Duplicate Samples             Relative Percent Difference (RPD) <35% or as per laboratory
                                         requirements
Laboratory Matrix Spikes                 Recovery as per laboratory requirements
Surrogate Spikes                         Recovery as per laboratory requirements
Chain-of-custody forms                   100% complete and included in SAP implementation report
Sample receipt from laboratory           Sample names/numbers received agree with chain-custody forms
                                         Samples were received intact
                                         Samples received at specific temperature
                                         Samples received within laboratory holding times
Completeness objective                   At least 95% of all data received should be validated as suitable for
                                         use

3.11 Reporting
The reporting of sediment quality results will be undertaken in a SAP Implementation Report that
includes the following components:

•   Summary of the SAP, or SAP appended to the report
•   Outline of potential problems encountered and deviations from the SAP, including justification


A10342 | 002                                          28                                     15 November 2021