Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:1
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 1
Character Range: 1501115–1502144

1                   Introduction

1.1              Objectives
The objective of this guideline is to derive EILs for arsenic (As), copper (Cu), chromium III (Cr (III)), dichlorodiphenyltrichloroethane (DDT), naphthalene, nickel (Ni), lead (Pb) and zinc (Zn) using the methodology detailed in Schedule B5b to:
    * illustrate the flexibility of the methodology—being able to derive soil contaminant limits that provide different levels of protection, and use different toxicity data
    * illustrate the magnitude and appropriateness of the  soil contaminant limits
    * compare the EILs with those of overseas jurisdictions.

1.2              Terminology
The term 'soil quality guideline' (SQG) is used in this guideline to describe any concentration-based limit for contaminants in soils.

A combination of lowest observed effect concentration (LOEC) and 30% effect concentration data (EC30) has been adopted in the NEPM for the derivation of EILs. Equivalent data for EC10 and EC50 is included for information purposes only.