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

                                                                          MWA Environmental




    Table 3:         Summary of Noise Modelling Scenarios


       SCENARIO                         SOURCES                        SOURCE TYPE


                                                                 Point Source (assume Lmax =
                                  Truck Mounted Blower
                                                                             Leq)

      Feed Delivery 3
                                Truck movement on access
                                                                  Moving Point Source (Lmax
                              road (1 two-way movement per
                                                                     and Leq assessed)
                                     hour at 10 km/h)


                                Truck movement on access
                                                                  Moving Point Source (Lmax
                              road (1 two-way movement per
                                                                     and Leq assessed)
                                     hour at 10 km/h)
        Catchout 3

                                                                  Point Source (assume Lmax
                              Forklift at eastern end of sheds
                                                                      2 dB(A) above Leq)



  Shed Ventilation Fans
                                     12 Fans per shed            Point Sources (L90 assessed)
     (7am to 10pm)


  Shed Ventilation Fans
  (10pm to 7am at High
                                     10 Fans per shed            Point Sources (L90 assessed)
  Ambient Temperature
        >25oC )

  Shed Ventilation Fans
  (10pm to 7am at Low
                                      5 Fans per shed            Point Sources (L90 assessed)
  Ambient Temperature
        <10oC)



    The modelled noise source locations are shown on the model layout included in
    Attachment 2.



    2.3.2 SOURCE NOISE DATA

    The source noise level for the shed ventilation fans were determined from
    measurements undertaken by MWA Environmental at an existing farm modern
    poultry farm. The modelled sound power level for the ventilation fans is detailed
    in Table 4 below. The directivity of the fans was represented in the model.




3 Leq assessment includes cumulative fan noise



Ridgewood 12-002                                 9                               31 July 2014