2184Response_OM13_222

Mr David Milligan, W Donald Milligan Pty Ltd                                    29 November 2013
Re: Response to Resolution of Sunshine Coast Regional Council Ordinary Meeting 14 November
      2013– Noise, Dust & Odour Issues - Proposed Poultry Growing Sheds, Ridgewood
                                                                                L25913/BH/12-002



STOCKPILING / COMPOSTING MANAGEMENT

Litter is to be stored within two bunded areas as shown on Callaghan & Toth Plan 01
Rev D Page 9 (September 2013) and are generally described as follows:

        Northern Stockpile Area (adjacent Shed 5)
        Available 300 lineal metres of stockpile within a 120m x 22.5m bunded area
        Available 76 lineal metres of reserve stockpile within a 82m x 14m bunded area

        Southern Stockpile Area (adjacent Shed 3)
        Available 110 lineal metres of stockpile within a 75m x 19m bunded area


Management of the litter stockpiling / composting process is summarised as follows:

    •    Litter will be transferred to the stockpile areas by truck and the initial
         stockpiles formed by tractor, bobcat or backhoe.
    •    The stockpiles will be covered using polyethylene sheet or similar to
         minimise fugitive dust and odour emissions during the storage period.
    •    A compost turning machine (tow-behind tractor)1 will be used to manage
         the composting process and maintain aerobic conditions to minimise odour
         emissions during the stockpiling period. The compost turning machines
         produce linear stockpiles approximately 1.5 metres high by 3 metres wide.
         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:
             o   below 10 km/h to minimise fugitive dust and odour emissions; and
             o   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.

The odour modelling undertaken by MWA Environmental, including addressing
matters raised by the technical reviewer engaged by SCRC, indicate that the
cumulative impact of the poultry growing sheds and the litter stockpiling will comply
with the Queensland odour guideline at surrounding residential dwellings.


1
  Examples include ‘JPH Equipment’ (http://ozturners.com.au/icwp/products/compost-turners/) and
‘Seymour Rural Equipment Pty Ltd’ (http://www.seymourrural.com.au/compost-turner-4000.html)


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