Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:5
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 5
Character Range: 1544253–1545502

5                               10              20   30   40   60
4.0                             45              50   50   50   50   50
4.5                             60              75   75   75   75   75
5.0                             80              110  110  110  110  110
5.5                             110             170  170  170  170  170
6.0                             140             250  250  250  250  250
6.5                             140             250  360  360  360  360
7.0                             140             250  420  540  540  540
7.5                             140             250  420  590  730  800

Table 20. Soil-specific added contaminant limits based on 50% effect concentration toxicity data (ACL(EC50), mg/kg) for fresh zinc (Zn) that should theoretically provide the appropriate level of protection (that is, 99, 80 or 60% of species) to soil processes, soil invertebrate species and plant species in soils with a pH ranging from 4.0 to 7.5 and cation exchange capacity (CEC) values ranging from 5 to 60 cmolc/kg. These are the recommended ACL(EC50) for Zn in freshly contaminated soils with each land use.
Areas of ecological significance
pH                                            CEC (cmolc/kg)