6. Noosa River DMP Ver0 (Combined)

Page                    : 24 of 25
Work Order              : EB2201825
Client                  : BMT COMMERCIAL AUSTRALIA PTY LTD
Project                 : A10342 - Noosa SAP

Analytical Methods                                Method     Matrix   Method Descriptions
Phenoxyacetic Acid Herbicides (LCMS -             EP202      SOIL     In house: LCMS (Electrospray in negative mode). Residues of acid herbicides are extracted from soil samples
Standard DL)                                                          under the alkaline condition. An aliquot of the alkaline aqueous phase is taken and acidified before a SPE
                                                                      cleanup. After eluting off from the SPE cartridge, residues of acid herbicides are dissolved in HPLC mobile
                                                                      phase prior to instrument analysis.
Per- and Polyfluoroalkyl Substances               EP231X     SOIL     In-house: Analysis of soils by solvent extraction followed by LC-Electrospray-MS-MS, Negative Mode using MRM
(PFAS) by LCMSMS                                                      using internal standard quantitation. Isotopically labelled analogues of target analytes used as internal
                                                                      standards and surrogates are added to a portion of soil which is then extracted with MTBE and an ion pairing
                                                                      reagent. A portion of extract is exchanged into the analytical solvent mixture, combined with an equal volume
                                                                      reagent water and filtered for analysis. Method procedures and data quality objectives conform to US DoD QSM
                                                                      5.3, table B-15 requirements.
Preparation Methods                               Method     Matrix   Method Descriptions
TKN/TP Digestion                               EK061/EK067   SOIL     In house: Referenced to APHA 4500 Norg- D; APHA 4500 P - H. Macro Kjeldahl digestion.
Sample Preparation for Ammonium in             EK255ASD-PR   SOIL     In house: Referenced to Rayment and Lyons Method 7C1 and 7C2. Ammonium is extracted into a un-buffered
Sediments                                                             2M potassium chloride solution at a 1:10 ratio.
Drying only                                       EN020D     SOIL     In house
Drying at 85 degrees, bagging and                EN020PR     SOIL     In house
labelling (ASS)
1:5 solid / water leach for soluble                EN34      SOIL     10 g of soil is mixed with 50 mL of reagent grade water and tumbled end over end for 1 hour. Water soluble salts
analytes                                                              are leached from the soil by the continuous suspension. Samples are settled and the water filtered off for
                                                                      analysis.
Hot Block Digest for metals in soils               EN69      SOIL     In house: Referenced to USEPA 200.2. Hot Block Acid Digestion 1.0g of sample is heated with Nitric and
sediments and sludges                                                 Hydrochloric acids, then cooled. Peroxide is added and samples heated and cooled again before being filtered
                                                                      and bulked to volume for analysis. Digest is appropriate for determination of selected metals in sludge,
                                                                      sediments, and soils. This method is compliant with NEPM Schedule B(3).
Extraction for Carbamates in Soils               EP201-PR    SOIL     In house: Referenced to USEPA Method 8318
Extraction for Phenoxy Acid Herbicides in        EP202-PR    SOIL     In-House: Alkaline extract followed by SPE clean up of acidified portion of the sample extract.
Soils.
Dry and Pulverise (up to 100g)                    GEO30      SOIL     #
Methanolic Extraction of Soils for Purge          ORG16      SOIL     In house: Referenced to USEPA SW 846 - 5030A. 5g of solid is shaken with surrogate and 10mL methanol prior
and Trap                                                              to analysis by Purge and Trap - GC/MS.
Tumbler Extraction of Solids                      ORG17      SOIL     In house: Mechanical agitation (tumbler). 10g of sample, Na2SO4 and surrogate are extracted with 30mL 1:1
                                                                      DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the
                                                                      desired volume for analysis.
Tumbler Extraction of Solids (Option A -         ORG17A      SOIL     In house: Mechanical agitation (tumbler). 20g of sample, Na2SO4 and surrogate are extracted with 150mL 1:1
Concentrating)                                                        DCM/Acetone by end over end tumble. The solvent is decanted, dehydrated and concentrated (by KD) to the
                                                                      desired volume for analysis.
Tumbler Extraction of Solids/ Sample           ORG17A-UTP    SOIL     In house: Mechanical agitation (tumbler). 20g of sample, Na2SO4 and surrogate are extracted with 150mL 1:1
Cleanup                                                               DCM/Acetone by end over end tumble. Samples are extracted, concentrated (by KD) and exchanged into an
                                                                      appropriate solvent for GPC and florisil cleanup as required.