Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:20:p7
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 20 (pt 7/10)
Character Range: 1668365–1672608

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 60% of species) to soil processes, soil invertebrate species and plant species in soils with a pH ranging from 4.5 to 8 and a CEC ranging from 5 to 60 cmolc/kg for various land uses. The lower of the CEC- or the pH-derived ACLs for a particular land use that apply to a soil is the aged ACL(LOEC & EC30) to be used.
Areas of ecological significance land use
Type of ACL                                    CEC (cmolc/kg)
                                               5               10   20   30   40   60
CEC-based ACLs                                 30              65   70   70   75   80
                                               pH
                                               4.5             5.5  6    6.5  7.5  8.0
pH-based ACLs                                  20              45   65   90   190  270
Residential urban /public open space land use
Type of ACL                                    CEC (cmolc/kg)
                                               5               10   20   30   40   60
CEC-based ACLs                                 95              190  210  220  220  230
                                               pH
                                               4.5             5.5  6    6.5  7.5  8.0
pH-based ACLs                                  60              130  190  280  560  800
Commercial/industrial land use
Type of ACL                                    CEC (cmolc/kg)
                                               5               10   20   30   40   60
CEC-based ACLs                                 140             280  300  320  330  340
                                               pH
                                               4.5             5.5  6    6.5  7.5  8.0
pH-based ACLs                                  85              190  280  400  830  1200

Table 60. Soil-specific ACLs (mg/kg) based on 50% effect concentration (EC50) data for aged copper (Cu) contamination that should theoretically provide the appropriate level of protection (i.e. 99, 80 or 60% of species) to soil processes, soil invertebrate species and plant species in soils with a pH ranging from 4.5 to 8 and a CEC ranging from 5 to 60 cmolc/kg for various land uses. The lower of the CEC- or the pH-derived ACLs for a particular land use that apply to a soil is the aged ACL(EC50) to be used.
Areas of ecological significance land use
Type of ACL                                    CEC (cmolc/kg)
                                               5               10   20   30   40    60
CEC-based ACLs                                 80              170  180  190  190   200
                                               pH
                                               4.5             5.5  6    6.5  7.5   8.0
pH -based ACLs                                 50              110  170  240  490   700
Urban residential /public open space land use
Type of ACL                                    CEC (cmolc/kg)
                                               5               10   20   30   40    60
CEC-based ACLs                                 150             300  350  350  350   400
                                               pH
                                               4.5             5.5  6    6.5  7.5   8.0
pH -based ACLs                                 95              200  300  450  900   1300
Commercial/industrial land use
Type of ACL                                    CEC (cmolc/kg)
                                               5               10   20   30   40    60
CEC-based ACLs                                 210             440  470  490  510   530
                                               pH
                                               4.5             5.5  6    6.5  7.5   8.0
pH -based ACLs                                 130             290  440  630  1300  1800

7.7.3.2         Calculation of ambient background concentration values
The ABC values for aged Cu contamination were calculated using