Response to oustanding issues Animal Husbandry MCU12/0184

                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




                         Analysis undertaken by MWA Environmental indicates that winds from the
                         northeasterly to southeasterly sector are present in the order of 56% of hours
                         between 6am and 6pm. Seasonal and annual wind roses extracted from the
                         CALMET meteorological model output for the 6am to 6pm period are included
                         as Attachment 3.          The wind roses demonstrate that there is ample
                         opportunity during all seasons for litter to be spread under wind conditions
                         that will not result in odour emissions impacting on sensitive receptors.


                         Given the spatial constraints of the orchard terraces, litter is expected to be
                         spread using a relatively small ground-driven spreader mounted to a small
                         tractor. These spreader systems typically have a fairly short broadcast
                         distances and velocity which will minimise potential for excessive dust (and
                         associated odorous particles) to be released to the atmosphere.                  The
                         vegetated  terrace structures will assist in reducing entrainment  of litter  in  the
                         atmosphere during periods   of  high wind  speeds.  This notwithstanding, mayit
                         be necessary to dampen the surface of the litter by irrigation during high wind
                         conditions to minimise potential fugitive dust (and odour) emissions.


                         Development approvals for poultry farms typically include a condition
                         requiring the implementation of a Site-Based Environmental Management
                         Plan prior to the commencement of use. This Site-Based Environmental
                         Management Plan should include management measures to minimise the risk
                         of odour nuisance from the spreading of litter, such as:


                                      Spreading of litter within 4 to 5 weeks of clean-out from the poultry
                                      sheds to 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.

                                      Maintaining a minimum setback of 50 metres from the southern,
                                      eastern and northern    property boundaries to minimise potential
                                      near-field odour influences on adjacent properties.

                                      Spreading of litter only when prevailing winds                              are   from the
                                      northeasterly to southeasterly sector.
                                      Use of appropriate low velocity spreading equipment to minimise
                                      release of dust (and associated odours) into the atmosphere.

                                      Dampening of applied litter during high wind speed periods to
                                      minimise potential fugitive dust (and odour) emissions.

                                      Corrective actions in the event of odour nuisance, including:

                                                                 Review of spreading locations, methods and practices to
                                                                 identify measure to reduce impacts; and
                                                                  If necessary, export of litter from site if noted to generate
                                                                 excessive odour emissions.




                                          ~-




                                   /"
                                      /~       T                                                        ~~~
                                                                                                          ’\
    (C                                                                                                          )                   .




~.~
 ...:.-.,
            \    \

                       ....
                              ’-

                               ~
                                     -....,.,.....
                                         ~
                                             ........
                                                          ........L_L...
                                                        -""""""’:-:::.:.....
                                                                                  8



                                                                                                  ~~->
                                                                                                                /       L!/).~