Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:5:p10
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 5 (pt 10/10)
Character Range: 171239–172690

filled area at rear of property known to be unaffected by subsequent industrial activity.
    * 12 m, sample of uncontaminated strata from adjacent site.

ABC (mg/kg)  Depth (m)  Cu  Zn   Ni  CrIII
01          4          65  2    7
12          1.5        8   0.5  10

  5.        Calculate the site EILs (ABC + ACL)
Site EILs (mg/kg)  Depth (m)  Cu   Zn     Ni   CrIII
01                194        465  172    407
12                211.5      598  270.5  410

    * Round results for reasons of consistency and avoidance of false accuracy[1]
Site EILs (mg/kg)  Depth (m)  Cu   Zn   Ni   CrIII
01                190        465  170  410
12                210        600  270  410

  6.       Compare site data with EILs
Site data (mg/kg)  Depth (m)  Cu   Zn   Ni    CrIII
01                540        890  660  1100
12                170        470  380  400

      Note: Shaded and bold font for sample values indicates EIL exceeded
Are results greater than EILs? YES, Cu, Zn, Ni and CrIII exceed EILs— further investigation required.

Tier 1 outcome  Exceedences of the HIL for Ni and EILs for Cu, Zn, Ni and Cr III.

Evaluation and conclusion
The geometric mean exceedences are 23 times the relevant screening level hence further investigation or management is required.
This example is limited to consideration of risks from exposure to metals in soil. Additional assessment would be required to evaluate groundwater issues at the site.