Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:7:p2
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 7 (pt 2/3)
Character Range: 1209156–1212363

key contaminants of concern (based on site history and any previous site assessment reports)
    * conclusions that can be drawn about problem identification.

7.3              Receptor identification
The receptor identification section should include the following information:
    * ecological values to be protected
    * CSM considerations
    * the approach used to identify ecological values that are potentially at risk
    * an assessment of the possible spatial and temporal overlap of receptors and contaminants of concern (this would link in with the exposure assessment)
    * basic life history and behaviour information about species identified as key receptors
    * the sources and estimates of uncertainty
    * conclusions that can be drawn about receptor identification.

7.4              Exposure assessment
The exposure assessment section should include the following information:
    * the sources of the contaminants (if not already discussed in problem identification)
    * the environmental fate and transport of the contaminants
    * the magnitude, duration and frequency of exposure
    * the applicable pathways with respect to the ecological receptors
    * the sources and estimates of uncertainty
    * conclusions that can be drawn about exposure assessment.

7.5              Toxicity assessment
The toxicity assessment section should include the following information:
    * the toxicity of the contaminants
    * the potential ecological effects at the individual organism, population and community levels
    * known toxicity modifying factors (both synergistic and antagonistic resulting from exposure to multiple contaminants)
    * indicators of ecological responses (e.g. suitable end-points)
    * the sources and estimates of uncertainty
    * conclusions that can be drawn about toxicity assessment.

7.6              Risk characterisation
The risk characterisation section of the report should use information gathered during the exposure and toxicity assessments to estimate the magnitude, probability and significance of ecological impacts occurring as a result of the concentration of contaminants present. An analysis of uncertainty should accompany this risk estimate.

7.7              Uncertainty
The uncertainty section of the report should include the following information:
    * a summary of the analyses of uncertainty that have been undertaken for each component of the ERA and documented in various sections of the ERA report
    * a discussion of overall uncertainty based on an assessment of all levels of uncertainty
    * a discussion of the implications of the uncertainty for the findings of the report
    * methods and indicative costs of reducing uncertainty (e.g. moving to higher levels of data collection, exposure assessment, etc.)
    * conclusions that can be drawn about uncertainty.

7.8              Conclusions and recommendations
The conclusion section of the ERA should be brief and use the conclusions that have been drawn for each component of the ERA and documented in various sections of the ERA report. This section should summarise the results of the ERA in the context of the objectives of the study. Recommendations by