Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:20:p6
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 20 (pt 6/10)
Character Range: 1665799–1668634

type               25th percentile of Cu ABC values (mg/kg)
NSW                       QLD                                       SA  VIC
Old suburb, low traffic   20                                        10  15   10
Old suburb, high traffic  30                                        15  25   10

7.7.2.3         Examples of soil quality guidelines for aged copper contamination in Australian soils based on no observed effect concentration and 10% effect concentration data.
SQGs are the sum of the ABC and ACL values, both of which are soil-specific. It is, therefore, not possible to present a single set of SQGs. Thus, some examples of SQG(NOEC & EC10) values for aged urban soils are provided below. These examples represent SQG(NOEC & EC10) values that would be at the low and high end of the range of SQG(NOEC & EC10) values that would be generated for Cu in Australian soils, but are not extreme values.

Example 1
Site descriptors – urban residential land /public open space use in an old Victorian suburb with low traffic volume.
Soil descriptors – a sandy acidic soil (pH 5.5, CEC 10) with 1% iron and aged Cu contamination and a low traffic volume.
The resulting aged ACL(NOEC & EC10), ABC and SQG(NOEC & EC10) values are:
aged ACL(NOEC & EC10) CEC-based:  110 mg/kg
aged ACL(NOEC & EC10) pH-based:  70 mg/kg
aged ACL(NOEC & EC10 ):  70 mg/kg (the lower of the two ACLs that apply to this soil)
aged ABC:    10 mg/kg
aged SQG(NOEC & EC10):    80 mg/kg

Example 2
Site descriptors – commercial/industrial land use in an old South Australian suburb with a high traffic volume.
Soil descriptors – an alkaline clay soil (pH 7.5, CEC 40) with a 10% iron and aged Cu contamination.
The resulting ACL(NOEC & EC10), ABC and SQG(NOEC & EC10) values are:
aged ACL(NOEC & EC10) CEC-based:  190 mg/kg
aged ACL(NOEC & EC10) pH-based:  480 mg/kg
aged ACL(NOEC & EC10):   190 mg/kg (the lower of the two ACLs that apply to this soil)
aged ABC:    25 mg/kg
aged SQG(NOEC & EC10):    215 mg/kg, which would be rounded off to 210 mg/kg.

7.7.3         Calculation of soil quality guidelines for aged copper contamination based on LOEC and 30% effect concentration toxicity data, and on 50% effect concentration data.

7.7.3.1         Calculation of soil-specific added contaminant limits
The ACL(LOEC & EC30) and ACL(EC50) values for aged Cu contamination were calculated in the same manner as the aged ACL(NOEC & EC10) values, except that LOEC and EC30 or EC50 toxicity data was used respectively. The aged ACL(LOEC & EC30) and aged ACL(EC50) values are presented in Tables 59 and 60 respectively.
Table 59. Soil-specific added contaminant limits (ACLs, mg/kg) based on LOEC and 30% effect concentration (EC30) data for aged copper (Cu) contamination that should theoretically provide the appropriate level of protection (i.e. 99, 80 or