REFERENCE DOCUMENTS - RAL25/0004 (As Published)

    Page                        : 2 of 4
    Work Order                  : EB2307800
    Client                      : ENVIRONMENTAL ADVISORS
    Project                     : 125 NSC LAKE McDONALD DVE, COOROY

     General Comments
     The analytical procedures used by ALS have been developed from established internationally recognised procedures such as those published by the USEPA, APHA, AS and NEPM.                                In house developed procedures
     are fully validated and are often at the client request.
     Where moisture determination has been performed, results are reported on a dry weight basis.
     Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract /digestate dilution and/or insufficient sample for analysis. Where the LOR of a reported result differs from
     standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference.
     Key :          Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot
                    CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society.
                    LOR = Limit of reporting
                    RPD = Relative Percentage Difference
                    # = Indicates failed QC
    Laboratory Duplicate (DUP) Report
    The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges
    for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI -EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR:
    No Limit; Result between 10 and 20 times LOR: 0% - 50%; Result > 20 times LOR: 0% - 20%.
    Sub-Matrix: SOIL                                                                                                                                                      Laboratory Duplicate (DUP) Report
     Laboratory sample ID     Sample ID                       Method: Compound                                          CAS Number       LOR            Unit         Original Result    Duplicate Result      RPD (%)    Acceptable RPD (%)
     EG005(ED093)T: Total Metals by ICP-AES (QC Lot: 4934343)
     EB2307649-001            Anonymous                       EG005T: Chromium                                            7440-47-3       2            mg/kg               19                   9              68.4          No Limit
     EA055: Moisture Content (Dried @ 105-110°C) (QC Lot: 4934346)
     EB2307649-001            Anonymous                       EA055: Moisture Content                                            ----    0.1             %                8.4                   8.6             2.6          0% - 20%
     EG048: Hexavalent Chromium (Alkaline Digest) (QC Lot: 4934344)
     EB2307718-001            Anonymous                       EG048G: Hexavalent Chromium                                18540-29-9      0.5           mg/kg             <39.1                 <39.7            1.6          No Limit

    Sub-Matrix: WATER                                                                                                                                                     Laboratory Duplicate (DUP) Report
     Laboratory sample ID     Sample ID                       Method: Compound                                          CAS Number       LOR            Unit         Original Result    Duplicate Result      RPD (%)    Acceptable RPD (%)
     EG005(ED093)C: Leachable Metals by ICPAES (QC Lot: 4943154)
     EB2307800-001            TP9-0.1                         EG005C: Cadmium                                             7440-43-9      0.05          mg/L              <0.05                 <0.05            0.0          No Limit
                                                              EG005C: Arsenic                                             7440-38-2      0.1           mg/L               <0.1                 <0.1             0.0          No Limit
                                                              EG005C: Chromium                                            7440-47-3      0.1           mg/L               <0.1                 <0.1             0.0          No Limit
                                                              EG005C: Copper                                              7440-50-8      0.1           mg/L               <0.1                 <0.1             0.0          No Limit
                                                              EG005C: Lead                                                7439-92-1      0.1           mg/L               0.6                   0.6             0.0          No Limit
                                                              EG005C: Nickel                                              7440-02-0      0.1           mg/L               <0.1                 <0.1             0.0          No Limit
                                                              EG005C: Zinc                                                7440-66-6      0.1           mg/L               4.4                   4.4             0.0          0% - 20%
     EG035C: Leachable Mercury by FIMS (QC Lot: 4941920)
     EB2307421-001            Anonymous                       EG035C: Mercury                                             7439-97-6     0.0001         mg/L             <0.0010             <0.0010             0.0          No Limit
     EB2308080-002            Anonymous                       EG035C: Mercury                                             7439-97-6     0.0001         mg/L             0.0036              0.0037              3.3          No Limit




Document Set ID: 23717062
Version: 0, Version Date: 01/01/1900