Request for Amended Advice Agency Response_Energex_Council CDA_01-04-2020

        J&P Richardson Industries Pty Ltd          -2-


1.3     Purpose of Study

        The purpose of this study is to provide a comprehensive response to ENERGEX’s request
        for an EMF investigation and report. In particular consider each of the following criteria:

           1. Current and future levels of EMF at the common boundary of easement B on
              RP177295 and the proposed lots.

           2. Compliance with applicable standards

           3. Incorporating the principles of prudent avoidance into the development

        The study will consider the proposed subdivision layout with regard to the existing and
        possible future scenarios for the transmission assets located within the easement corridor.


1.4     Methodology for assessing magnetic fields

        The initial step is to calculate the electric and magnetic field levels at the respective
        easement boundaries associated with an average value of load current through the
        transmission circuits. These values will be compared with a low-level target for magnetic
        field identified in the industry as broadly acceptable.

        Should calculated average values require mitigation, additional measures within the scope
        of prudent avoidance will be considered. As modification of the ENERGEX 132KV
        transmission line would be prohibitively expensive, the measures will focus on changes
        within the lot layout / building position within the subdivision development itself.

1.4.1   Relevance of magnetic versus electric fields
        The main focus of this report is in the calculation and minimising of magnetic fields
        associated with the ENERGEX high voltage lines. The majority of concerns regarding
        power frequency fields and possible negative impacts on human health have been directed
        toward magnetic fields.

        Electric fields are of a lesser concern, and are at very low levels for circuits energised at
        distribution voltages. Therefore electric field strengths will be listed in the report for
        completeness only.




        Hollett Road EMF Study                                                           V1.0