REFERENCE DOCUMENTS - RAL25/0004 (As Published)

     Page                       : 9 of 10
     Work Order                 : EB2306000
     Client                     : ENVIRONMENTAL ADVISORS
     Project                    : 125 NSC LAKE McDONALD DVE, COOROY

     Brief Method Summaries
     The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house
     developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the
     Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions.
     Analytical Methods                                            Method                Matrix       Method Descriptions
     pH in soil using a 0.01M CaCl2 extract                        EA001                  SOIL        In house: Referenced to Rayment and Lyons 4B3 (mod.) or 4B4 (mod.) 10 g of soil is mixed with 50 mL of 0.01M
                                                                                                      CaCl2 and tumbled end over end for 1 hour. pH is measured from the continuous suspension. This method is
                                                                                                      compliant with NEPM Schedule B(3).
     pH (1:5)                                                      EA002                  SOIL        In house: Referenced to Rayment and Lyons 4A1 and APHA 4500H+. pH is determined on soil samples after a
                                                                                                      1:5 soil/water leach. This method is compliant with NEPM Schedule B(3).
     Electrical Conductivity (1:5)                                 EA010                  SOIL        In house: Referenced to Rayment and Lyons 3A1 and APHA 2510. Conductivity is determined on soil samples
                                                                                                      using a 1:5 soil/water leach. This method is compliant with NEPM Schedule B(3).
     Moisture Content                                              EA055                  SOIL        In house: A gravimetric procedure based on weight loss over a 12 hour drying period at 105-110 degrees C.
                                                                                                      This method is compliant with NEPM Schedule B(3).
     Asbestos Identification in Soils                              EA200                  SOIL        AS 4964 Method for the qualitative identification of asbestos in bulk samples Analysis by Polarised Light
                                                                                                      Microscopy including dispersion staining
     Exchange Acidity by 1M Potassium                             * ED005                 SOIL        In house: referenced to Rayment and Lyons, method 15G1. This method is unsuitable for near neutral and
     Chloride                                                                                         alkaline soils. NATA accreditation does not cover performance of this service.
     Exchangeable Cations on Alkaline Soils                       * ED006                 SOIL        In house: Referenced to Soil Survey Test Method C5. Soluble salts are removed from the sample prior to
                                                                                                      analysis. Cations are exchanged from the sample by contact with alcoholic ammonium chloride at pH 8.5. They
                                                                                                      are then quantitated in the final solution by ICPAES and reported as meq/100g of original soil.
     Exchangeable Cations                                          ED007                  SOIL        In house: Referenced to Rayment & Lyons Method 15A1. Cations are exchanged from the sample by contact with
                                                                                                      Ammonium Chloride. They are then quantitated in the final solution by ICPAES and reported as meq/100g of
                                                                                                      original soil. This method is compliant with NEPM Schedule B(3).
     Exchangeable Cations with                                     ED008                  SOIL        In house: Referenced to Rayment & Lyons Method 15A2. Soluble salts are removed from the sample prior to
     pre-treatment                                                                                    analysis. Cations are exchanged from the sample by contact with Ammonium Chloride. They are then
                                                                                                      quantitated in the final solution by ICPAES and reported as meq/100g of original soil. This method is compliant
                                                                                                      with NEPM Schedule B(3).
     Total Metals by ICP-AES                                      EG005T                  SOIL        In house: Referenced to APHA 3120; USEPA SW 846 - 6010. Metals are determined following an appropriate
                                                                                                      acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic
                                                                                                      spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix
                                                                                                      matched standards. This method is compliant with NEPM Schedule B(3)
     Total Mercury by FIMS                                        EG035T                  SOIL        In house: Referenced to APHA 3112 Hg - B (Flow-injection (SnCl2) (Cold Vapour generation) AAS) FIM-AAS is an
                                                                                                      automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate
                                                                                                      acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a
                                                                                                      heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is
                                                                                                      compliant with NEPM Schedule B(3)
     Organic Matter                                                EP004                  SOIL        In house: Referenced to AS1289.4.1.1. Dichromate oxidation method after Walkley and Black. This method is
                                                                                                      compliant with NEPM Schedule B(3)
     Pesticides by GCMS                                            EP068                  SOIL        In house: Referenced to USEPA SW 846 - 8270 Extracts are analysed by Capillary GC/MS and quantification is by
                                                                                                      comparison against an established 5 point calibration curve. This technique is compliant with NEPM Schedule
                                                                                                      B(3).
Document Set ID: 23717062
Version: 0, Version Date: 01/01/1900