Ridgewood_12-002_Odour_AdditionalInfoRequest_L181BH_110913

Mr David Milligan, W Donald Milligan Pty Ltd                                  11 September 2013
Re: Response to Sunshine Coast Regional Council Outstanding Issues Request – Proposed Poultry
      Growing Sheds, Ridgewood                                                 L18113/BH/12-002



        A key goal of the proposed poultry farm proposal is to allow for the reuse of
        the spent litter on-site. The reuse minimises waste product generated from
        the poultry farm and integrates the activity with the existing avocado orchard.

        Given the dynamic nature of fertiliser application (i.e. variations in locations
        and sizes of application areas, varying meteorological conditions) it is not
        considered feasible to undertake a reliable quantitative modelling
        assessment. This notwithstanding, it is considered that with the available
        separation distance to sensitive receptors and appropriate application
        methods there is the potential to minimise the risk of odour nuisance.

        The proponent intends to apply litter within 4 to 5 weeks of the clean-out from
        the sheds. Odour emissions from the litter will deplete reasonably quickly
        following application (substantially reduced over several days).           This
        operational program will ensure that odour emissions from the spreading of
        litter do not coincide with peak odour emission periods from the next batch of
        birds in the poultry sheds. There should therefore not be significant
        cumulative impacts from the litter spreading within the orchard and the broiler
        farm.

        The available setback distances from the subject site boundary to sensitive
        receptors is summarised in Table 2 below for the receptor locations shown on
        Figure 1.

        Table 2:      Setback Distances from Nearest Property Boundary to
                      Sensitive Receptors

                                      Distance from
                   Residence         Residence to Site
                                      Boundary (m)

                       1                     415
                       2                     250
                       3                     365
                       4                     610
                       5                     970
                       6                    1450
                       7                     520
                       8                     550
                       9                     825
                      10                     925

        It is recommended that litter not be spread within 50 metres of the southern,
        eastern and northern property boundaries to minimise potential near-field
        odour influences on adjacent properties. On this basis, litter spreading should
        not occur within 300 metres of a sensitive receptor. This provides a
        significant minimum setback distance to allow for odour dilution and
        dispersion.




                                              7