Attachment 6 - Odour Impact Assessment - Katestone · 132005.638.06

minimise air emissions; manages air emissions e.g. suitably locating sources, treating emissions before release,
or sufficiently dispersion air emissions to minimise impacts.

The administering authority must consider the requirements of the Air EPP when it decides an application for an
environmental authority, amendment of a licence or approval of a draft environmental management plan. Schedule
1 of the Air EPP specifies air quality indicators and objectives for specific air pollutants.

Further to the Air EPP, DETSI has provided the Guideline: Application requirements for activities with impacts to
air, ESR/2015/1840 (Impacts to Air Guideline) which focuses on the types of impacts that an ERA can have on air.
The Guideline is relevant to the Noosa Resource Recovery Centre and the proposed composting operations and
outlines the information to be provided to DETSI as part of an ERA application process. In general, the Guideline
considers three key areas to be identified and addressed through an ERA application process:

      •   Identifying the environmental values of the receiving air environment including the identification of any
          nearby sensitive places (Section 5)

      •   Identifying the possible impacts of the proposed activity and all associated risks to the environmental
          values (Section 7)

      •   Identifying the strategies to mitigate the identified risks to the environmental values (Section 2)

The term ‘environmental value’ is generally used to describe the physical, aesthetic, social and cultural values of a
location or proposed site. Specific environmental values relevant to air are defined in the Air EPP. This memo has
been prepared in line with guidance provided in the Impacts to Air Guideline.


3.3       Guideline: Odour Impact Assessment from Developments

DETSI has published the Guideline: Odour Impact Assessment from Developments, ESR/2024/6828 (Odour
Guideline) to set out “various approaches to assess potential [odour] impacts from new development proposals”.
In addition to approaches to odour impact assessment, the Odour Guideline also provides guidance on modelling
approaches, odour impact assessment criteria, and supporting guidance on measurement, sampling, modelling
and meteorology. The Odour Guideline was most recently updated in 2024.

This assessment has been conducted in accordance with the guidance provided in the Odour Guideline.

The Odour Guideline specifies an impact assessment criterion of 2.5 ou as a 1-hour average, 99.5th percentile for
ground-level sources and wake-affected stacks, which has been adopted for this assessment.




 Katestone Environmental Australia Pty Ltd                                                        17 September 2026
 D25072-8 Noosa Council - Noosa Composting Odour Assessment - Final                                         Page 7