REFERENCE DOCUMENTS - RAL25/0004 (As Published)

    Page                        : 2 of 44
    Work Order                  : EB2406372
    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
                    * = The final LOR has been raised due to dilution or other sample specific cause; adjusted LOR is shown in brackets. The duplicate ranges for Acceptable RPD% are applied to the final LOR where
                    applicable.
    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: 5627887)
     EB2406372-001            TP12-0.1                        EG005T: Cadmium                                  7440-43-9       1          mg/kg             <1                  <1               0.0          No Limit
                                                              EG005T: Chromium                                 7440-47-3       2          mg/kg             38                  38               0.0          0% - 50%
                                                              EG005T: Nickel                                   7440-02-0       2          mg/kg             3                   3                0.0          No Limit
                                                              EG005T: Arsenic                                  7440-38-2       5          mg/kg             <5                  <5               0.0          No Limit
                                                              EG005T: Copper                                   7440-50-8       5          mg/kg             <5                  <5               0.0          No Limit
                                                              EG005T: Lead                                     7439-92-1       5          mg/kg             6                   5                0.0          No Limit
                                                              EG005T: Zinc                                     7440-66-6       5          mg/kg             <5                  <5               0.0          No Limit
     EB2406372-011            TP14-2.0                        EG005T: Cadmium                                  7440-43-9       1          mg/kg             <1                  <1               0.0          No Limit
                                                              EG005T: Chromium                                 7440-47-3       2          mg/kg             51                  46               9.9          0% - 20%
                                                              EG005T: Nickel                                   7440-02-0       2          mg/kg             2                   <2               0.0          No Limit
                                                              EG005T: Arsenic                                  7440-38-2       5          mg/kg             <5                  <5               0.0          No Limit
                                                              EG005T: Copper                                   7440-50-8       5          mg/kg             <5                  <5               0.0          No Limit
                                                              EG005T: Lead                                     7439-92-1       5          mg/kg             7                   6               17.2          No Limit
                                                              EG005T: Zinc                                     7440-66-6       5          mg/kg             8                   6               35.1          No Limit
     EG005(ED093)T: Total Metals by ICP-AES (QC Lot: 5627889)
     EB2406372-023            TP18-0.1                        EG005T: Cadmium                                  7440-43-9       1          mg/kg             <1                  <1               0.0          No Limit
                                                              EG005T: Chromium                                 7440-47-3       2          mg/kg             9                   10              15.2          No Limit
                                                              EG005T: Nickel                                   7440-02-0       2          mg/kg             2                   2                0.0          No Limit
                                                              EG005T: Arsenic                                  7440-38-2       5          mg/kg             <5                  <5               0.0          No Limit
                                                              EG005T: Copper                                   7440-50-8       5          mg/kg             5                   <5               0.0          No Limit
                                                              EG005T: Lead                                     7439-92-1       5          mg/kg             9                   7               22.1          No Limit
Document Set ID: 23717062
Version: 0, Version Date: 01/01/1900