Further information from consultant MCU12/0184

        Mr David Milligan, W Donald Milligan Pty LId                                                      29 November 2013
        Re: Response to Sunshine Coast Regional Further Information Request of 19 November 2013                      -

                                                                                                                         Noise,
                 Dust & Odour Issues     -

                                             Proposed Poultry Growing Sheds, Ridgewood
                                                                                                           L26013/BH/12-002




              GHD Covered Windrow3:                                        Average         0.4         OU/m2/second         for
                                                                                  covered windrow

                                                                           Peak      1.2    OU/m2/second            for    top
                                                                                  section of covered windrow

              ERM Gerogery4:                                               Varying odour emission from Week 1
                                                                                to Week 5 including flux hood
                                                                                  correction, as follows:


        Table 1: Surface Odour Emission Rate Derived from ERM Gerogery
                      Actual SOER for Full Surface of Stockpiles
                      With Flux Hood Correction FactorS


                                                                    Surface Odour Emission Rate              -   OU/m2/sec
                         PARAMETER
                                                                  Week 1     Week 2         Week 3        Week 4      WeekS

                SOER Measured by Flux Hood                          7.7           1 .1       0.36           0.85          0.07

              Correction for Flux Hood Diversion                   13.9        13.9          13.9           13.9          4.6

                        Modelled SOER                              107.0       15.3              5.0        11.8          0.3




        Whilst the above comparative data does not definitively quantify odour emissions
        from the       proposed stockpiling activities, the data does indicate that the                                   MWA
        Environmental modelled odour emission rates are comparable to published data for
        composting windrows, including measurement by wind tunnel instead of flux hood
        sampling.

        The updated modelling has considered the overall odour impacts from the proposed
        development including the following litter stockpile odour emission rate scenarios:

               A.   Poultry Sheds Only i.e. no litter stockpiling
               B.   Previously applied stockpile odour emission rate of 5.8 OU/m2/second;
               C. Stockpile odour emission rate of 53.3 OU/m2/second based upon the ’10
                  times higher’ aged stockpile sample referenced in the SCRC information
                    request; and
               D. Stockpile odour emission rates as per Table 1 above (derived from ERM,
                    2013) varying from 107 OU/m2/second for Week 1 to 0.3 OU/m2/second for
                    Week 5.


        The results of the modelling are presented in Attachment 2.




        3
            Pollock, T. (2009)Odour Emission rate Measurements on Green-waste Windrows, 19th Int. Clean Air
        & Environment Conference.                                                                                                 ~
        4
            Resource Recovery Facility       Gerogery       Odour Impact Assessment (Environmental Resources



V                                                                                                                                 ~~
                                         -
                                                        -




        Management Australia, August 2013) including references to Environmental Impact Statement
        (Report Number 31/29006/180436 Organic Compost Facility Environmental Impact Statement, (GHD,
                                                  -




        October 2012)
                                                                                                                                  ,
I       5
    "     Correction factors were noted by the author to be likely overestimates due to the method applied




                                                                    6
                           "
                                                                                                             "

                               ~