132006.268.03 - Original Court Approval - Attachment 1

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GILBERT+SUTH ERLANG

Summary

This report describes the proposed wastewater loadings, treatment method and disposal
strategy for the redeveloped Cooroy Mountain Spring Water bottling facility, Lot 2 SP143409,
314 Cooroy Mountain Road, Mt Cooroy, Queensland.

An Effluent Disposal Report has been previously prepared for the site as part of the MCU
Development Application. This current conceptual assessment constitutes a revision of the site
effluent treatment and disposal strategy in accordance with AS/NZS 1547:2000 ‘On-site
domestic wastewater management’ and the experts agreement dated 2 September 2009, and
refers to the findings of the previous report where relevant.

In performing this assessment site physical characteristics and site soil suitability have been
reviewed.

An approved secondary wastewater treatment system will be used to manage wastewater
generated by the development. An irrigation area of 1,180m? will be required to assimilate the
proposed volume of treated wastewater. We consider there is sufficient land area on the site to
accommodate the irrigation area and an increase in area if required.

This report concludes that sustainable irrigation of treated wastewater within the site, in
accordance with the advice contained herein and applicable guidelines, is achievable.

As this is a conceptual design, a further detailed effluent treatment and disposal strategy

including MEDLI modelling will need to be prepared to support future operational works
applications for this site.