REFERENCE DOCUMENTS - RAL25/0004 (As Published)

    Page                        : 2 of 11
    Work Order                  : EB2409053
    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: WATER                                                                                                                                      Laboratory Duplicate (DUP) Report
     Laboratory sample ID     Sample ID                       Method: Compound                                CAS Number     LOR           Unit       Original Result    Duplicate Result      RPD (%)    Acceptable RPD (%)

     EA015: Total Dissolved Solids dried at 180 ± 5 °C (QC Lot: 5677448)
     EB2409004-001            Anonymous                       EA015H: Total Dissolved Solids @180°C                  ----     10           mg/L           1870                1870               0.3          0% - 20%
     EB2409118-001            Anonymous                       EA015H: Total Dissolved Solids @180°C                  ----     10           mg/L            351                 348               0.8          0% - 20%
     EG035F: Dissolved Mercury by FIMS (QC Lot: 5673708)
     EB2409053-001            MB1-1                           EG035F-LL: Mercury                               7439-97-6    0.00004        mg/L         <0.00004            <0.00004             0.0          No Limit
     EG094F: Dissolved Metals in Fresh Water by ORC-ICPMS (QC Lot: 5671709)
     EB2409053-001            MB1-1                           EG094A-F: Cadmium                                7440-43-9     0.05          µg/L           <0.05               <0.05              0.0          No Limit
                                                              EG094A-F: Lead                                   7439-92-1      0.1          µg/L            0.1                 0.1               0.0          No Limit
                                                              EG094A-F: Arsenic                                7440-38-2      0.2          µg/L            <0.2                <0.2              0.0          No Limit
                                                              EG094A-F: Chromium                               7440-47-3      0.2          µg/L            <0.2                <0.2              0.0          No Limit
                                                              EG094A-F: Copper                                 7440-50-8      0.5          µg/L            4.3                 4.3               0.0          No Limit
                                                              EG094A-F: Nickel                                 7440-02-0      0.5          µg/L            2.6                 2.5               0.0          No Limit
                                                              EG094A-F: Zinc                                   7440-66-6       1           µg/L             13                  13               0.0          0% - 50%
     EP080/071: Total Petroleum Hydrocarbons (QC Lot: 5673899)
     EB2409053-001            MB1-1                           EP080: C6 - C9 Fraction                                ----     20           µg/L            <20                 <20               0.0          No Limit
     EB2409055-006            Anonymous                       EP080: C6 - C9 Fraction                                ----     20           µg/L            <20                 <20               0.0          No Limit
     EP080/071: Total Recoverable Hydrocarbons - NEPM 2013 Fractions (QC Lot: 5673899)
     EB2409053-001            MB1-1                           EP080: C6 - C10 Fraction                           C6_C10       20           µg/L            <20                 <20               0.0          No Limit
     EB2409055-006            Anonymous                       EP080: C6 - C10 Fraction                           C6_C10       20           µg/L            <20                 <20               0.0          No Limit
     EP080: BTEXN (QC Lot: 5673899)
     EB2409053-001            MB1-1                           EP080: Benzene                                     71-43-2       1           µg/L             <1                  <1               0.0          No Limit
Document Set ID: 23717062
Version: 0, Version Date: 01/01/1900