Response to oustanding issues Animal Husbandry MCU12/0184

II

                                                                                MWA Environmental




            The required length of stockpiles is calculated as follows:


                                 Total litter volume of 1027m3

                            .
                                 Stockpile capacity of 2.5m3 of litter per lineal metre
                             q    Total 410 lineal metres 3 of stockpile required


            Based upon advice from Seymour Rural Equipment Pty Ltd, Callaghan &
            Toth has designed the two bunded stockpile storage areas to accommodate
            up to 486 lineal metres of the litter stockpiles. This provides a reserve
            stockpile length of 76 metres as a redundancy in the event that a larger litter
            volume is produced from the sheds than anticipated or that a smaller
            volume compost turning machine is used as the site.


            Available compost turning machines include the ability to pick up and relay
            the covers over the stockpiles.


            The litter stockpiles will be turned at least weekly but potentially twice
            per week to maintain aerobic conditions.                 Litter turning should only be
            undertaken when prevailing winds are:


                        below 10 km/h to minimise fugitive dust and odour emissions; and

                        from the northeasterly to southeasterly sector to ensure that odour
                            emissions are directed away from sensitive receptors.


            In order to minimise the potential cumulative odour impact from the
            stockpiling and spreading of the spent litter, the proponent intends to
            spread all litter within 4 to 5 weeks of the shed clean-out. Under this
            operational regime, odour emissions from the stockpiling and spreading of
            the spent litter occur during the period when only minor emissions are
            generated from the broiler sheds.

            Further detail in relation to the potential odour impact of the litter stockpiling
            is provided in the MWA Environment letter Response to Sunshine Coast
            Regional Council Outstanding Issues Request              -

                                                                         Proposed Poultry Growing
            Sheds, Ridgewood (L18113/BH/12-002, 11 September 2013).

            The stockpiling of litter will be undertaken by on-site manager and existing
            farm staff. No specific vehicle movements will be generated on the external
            road network          through the stockpiling and application of litter within the
            avocado orchard. The replacement of imported fertiliser with the litter will
            reduce the traffic generation of the existing avocado orchard.




     3 1027m3 .;. 2.5m2 =
                            410 metres




     Ridgewood 12-002                                  12                       11 September 2013