Noise and Air Quality Impact Assessment W D Milligan 31 July 2014

                                                                 MWA Environmental




      OER = 0.025 K A D V0.5

      where:
               OER = odour emission rate (OU.m³/s)
               A=      total shed floor area (m²)
               D=      average bird density (in kg/m²)
               V=      ventilation rate (m³/s)
               K=      scaling factor between 1 and 6 where 1 represents an
                       extremely well designed and managed shed


   Modelled odour emission rates from a poultry shed are varied each hour
   depending upon these factors and relevant sub-factors (e.g. ventilation rate
   dependent upon bird age, target temperature, ambient temperature etc.).

   For the purposes of this assessment, odour estimations have been based upon
   the ‘K Factor’ formula with emissions from each shed varied hourly dependent
   upon:

      •   Bird age / target temperature
      •   Ambient temperature
      •   Number of birds
      •   Individual bird mass

   Ingham’s has advised that policy for broiler sheds is to maintain compliance with
   RSPCA recommendations for bird densities for improved animal welfare. In
   order to maintain compliance with RSPCA guidelines, Ingham’s has advised that
   all sheds are to be stocked at a maximum initial stocking density of 16.75 birds
   per square metre with a maximum target mass density of 32 kg/m2 at any stage
   during the growing cycle. MWA Environmental has modelled bird growth and
   catch-out profiles in accordance with these stocking specifications.

   It is noted that previous modelling undertaken by MWA Environmental was based
   upon a stocking density of 18.5 birds per square metre. The new Ingham’s policy
   for a maximum stocking density of 16.75 birds per square metre in response to
   the RSPCA recommendations will reduce potential bird numbers on-site and
   odour emissions from the proposed poultry sheds.

   Emissions from the proposed poultry sheds have been based upon a standard
   stocking program of all sheds being stocked over a two day period. This default
   stocking method is a worst-case assessment for the purposes of odour emissions
   as it can result in peak emissions from all sheds occurring simultaneously.

   Considering the results of recent monitoring commissioned by MWA
   Environmental and programs undertaken by the Queensland Department of
   Employment, Economic Development and Innovation at a range of comparable
   modern farms in South-East Queensland, it has been assumed that the proposed
   modern broiler sheds will achieve a ‘K Factor’ of 2.2 when operated to best-
   practice standards.



Ridgewood 12-002                          18                            31 July 2014