Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:8:p2
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 8 (pt 2/3)
Character Range: 298199–301311

required. ESLs broadly apply to coarse- and fine-grained soils and various land uses. They are generally applicable to the top 2 m of soil.
Environmental value is a value or use of the environment which is conducive to public benefit, welfare, safety or health and which requires protection from the effects of pollution, waste discharge and deposits.
Exposure scenario is a set of conditions or assumptions about sources, exposure pathways, concentration of contaminants involved and an exposed population (that is, numbers, characteristics, habits) used in the evaluation and quantification of exposure(s) in a given situation.
Fibrous asbestos (FA) includes loose fibrous material such as insulation products, severely weathered cement-bonded asbestos sheeting and damaged low density board (up to 70% asbestos in calcium silicate). For the purposes of site assessment, FA includes any asbestos–containing-material (ACM) that is easily powdered or made pasty with clear separation of asbestos fibres by moderate hand pressure.
Groundwater investigation level (GIL) is the concentration of a groundwater parameter at which further investigation (point of extraction) or a response (point of use) is required. Includes Australian water quality guidelines, drinking water guidelines, guidelines for managing risk in recreational water criteria and site-specific derived criteria.
Health investigation levels (HILs) are the concentrations of a contaminant above which further appropriate investigation and evaluation will be required. HILs are generic to all soil types and generally apply to the top 3 m of soil.
Health risk assessment (HRA) is the process of estimating the potential impact of a chemical, biological or physical agent on a specified human population system under a specific set of conditions.
Health screening levels (HSLs) for petroleum hydrocarbons are the concentrations above which further appropriate investigation and evaluation will be required. HSLs depend on physicochemical properties of soil, as these affect hydrocarbon vapour movement in soil, and the characteristics of building structures. HSLs apply to different soil types, land uses and depths below surface to >4 m and have a range of limitations.
Investigation levels and screening levels are the concentrations of a contaminant above which further appropriate investigation and evaluation will be required. Investigation and screening levels provide the basis of Tier 1 risk assessment.
Petroleum hydrocarbon 'management limits' are limited to petroleum hydrocarbon compounds. They are maximum values that should remain in a site following evaluation of human health and ecological risks and risks to groundwater resources and apply to all soil depths based on site-specific considerations. These limits are to consider the formation of light non aqueous phase liquids, fire and explosion risks and damage to buried infrastructure.
Multiple-lines-of-evidence approach is the process for evaluating and integrating information from different sources of data and uses best professional judgement to assess the consistency and