6. Noosa River DMP Ver0 (Combined)

Internal Quality Control Review and Glossary

General
1.   Laboratory QC results for Method Blanks, Duplicates, Matrix Spikes, and Laboratory Control Samples follows guidelines delineated in the National Environment Protection (Assessment of Site
     Contamination) Measure 1999, as amended May 2013 and are included in this QC report where applicable. Additional QC data may be available on request.
2.   All soil/sediment/solid results are reported on a dry basis, unless otherwise stated.
3.   All biota/food results are reported on a wet weight basis on the edible portion, unless otherwise stated.
4.   Actual LORs are matrix dependant. Quoted LORs may be raised where sample extracts are diluted due to interferences.
5.   Results are uncorrected for matrix spikes or surrogate recoveries except for PFAS compounds.
6.   SVOC analysis on waters are performed on homogenised, unfiltered samples, unless noted otherwise.
7.   Samples were analysed on an 'as received' basis.
8.   Information identified on this report with blue colour, indicates data provided by customer that may have an impact on the results.
9.   This report replaces any interim results previously issued.


Holding Times
Please refer to 'Sample Preservation and Container Guide' for holding times (QS3001).
For samples received on the last day of holding time, notification of testing requirements should have been received at least 6 hours prior to sample receipt deadlines as stated on the SRA.
If the Laboratory did not receive the information in the required timeframe, and regardless of any other integrity issues, suitably qualified results may still be reported.
Holding times apply from the date of sampling, therefore compliance to these may be outside the laboratory's control.
For VOCs containing vinyl chloride, styrene and 2-chloroethyl vinyl ether the holding time is 7 days however for all other VOCs such as BTEX or C6-10 TRH then the holding time is 14 days.


Units
mg/kg: milligrams per kilogram                               mg/L: milligrams per litre                                           µg/L: micrograms per litre
ppm: parts per million                                       ppb: parts per billion                                               %: Percentage
org/100 mL: Organisms per 100 millilitres                    NTU: Nephelometric Turbidity Units                                   MPN/100 mL: Most Probable Number of organisms per 100 millilitres


Terms
APHA                          American Public Health Association
COC                           Chain of Custody
CP                            Client Parent - QC was performed on samples pertaining to this report
CRM                           Certified Reference Material (ISO17034) - reported as percent recovery.
Dry                           Where a moisture has been determined on a solid sample the result is expressed on a dry basis.
Duplicate                     A second piece of analysis from the same sample and reported in the same units as the result to show comparison.
LOR                           Limit of Reporting.
LCS                           Laboratory Control Sample - reported as percent recovery.
Method Blank                  In the case of solid samples these are performed on laboratory certified clean sands and in the case of water samples these are performed on de-ionised water.
NCP                           Non-Client Parent - QC performed on samples not pertaining to this report, QC is representative of the sequence or batch that client samples were analysed within.
RPD                           Relative Percent Difference between two Duplicate pieces of analysis.
SPIKE                         Addition of the analyte to the sample and reported as percentage recovery.
SRA                           Sample Receipt Advice
Surr - Surrogate              The addition of a like compound to the analyte target and reported as percentage recovery.
TBTO                          Tributyltin oxide (bis-tributyltin oxide) - individual tributyltin compounds cannot be identified separately in the environment however free tributyltin was measured
                              and its values were converted stoichiometrically into tributyltin oxide for comparison with regulatory limits.
TCLP                          Toxicity Characteristic Leaching Procedure
TEQ                           Toxic Equivalency Quotient or Total Equivalence
QSM                           US Department of Defense Quality Systems Manual Version 5.4
US EPA                        United States Environmental Protection Agency
WA DWER                       Sum of PFBA, PFPeA, PFHxA, PFHpA, PFOA, PFBS, PFHxS, PFOS, 6:2 FTSA, 8:2 FTSA


QC - Acceptance Criteria
The acceptance criteria should be used as a guide only and may be different when site specific Sampling Analysis and Quality Plan (SAQP) have been implemented
RPD Duplicates: Global RPD Duplicates Acceptance Criteria is 30% however the following acceptance guidelines are equally applicable:
Results <10 times the LOR: No Limit
Results between 10-20 times the LOR: RPD must lie between 0-50%
Results >20 times the LOR : RPD must lie between 0-30%
NOTE: pH duplicates are reported as a range not as RPD
Surrogate Recoveries: Recoveries must lie between 20-130% for Speciated Phenols & 50-150% for PFAS
PFAS field samples that contain surrogate recoveries in excess of the QC limit designated in QSM 5.4 where no positive PFAS results have been reported have been reviewed and no data was
affected.
.

QC Data General Comments
1.   Where a result is reported as a less than (<), higher than the nominated LOR, this is due to either matrix interference, extract dilution required due to interferences or contaminant levels within
     the sample, high moisture content or insufficient sample provided.
2.   Duplicate data shown within this report that states the word "BATCH" is a Batch Duplicate from outside of your sample batch, but within the laboratory sample batch at a 1:10 ratio. The Parent
     and Duplicate data shown is not data from your samples.
3.   pH and Free Chlorine analysed in the laboratory - Analysis on this test must begin within 30 minutes of sampling. Therefore, laboratory analysis is unlikely to be completed within holding
     time.Analysis will begin as soon as possible after sample receipt.
4.   Recovery Data (Spikes & Surrogates) - where chromatographic interference does not allow the determination of recovery the term "INT" appears against that analyte.
5.   For Matrix Spikes and LCS results a dash "-" in the report means that the specific analyte was not added to the QC sample.
6.   Duplicate RPDs are calculated from raw analytical data thus it is possible to have two sets of data.


                                                            Eurofins Environment Testing 1/21 Smallwood Place, Murarrie, QLD, Australia, 4172                                           Page 4 of 7
     Date Reported: Feb 08, 2022                                            ABN : 50 005 085 521 Telephone: +61 7 3902 4600                                               Report Number: 858591-S