Response to oustanding issues Animal Husbandry MCU12/0184

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                                                                                      Callaghan & Toth

    4.       WATER CYCLE MANAGEMENT PLAN

    This development has been designed in accordance with Deemed to Comply Solutions              -




    Stormwater Quality Management (South East Queensland) Version 1.0            -

                                                                                     May 2010.

    To this end, 100% of the new roof area of 1.39 hectares will be connected to thirty two (32)
    rainwater tanks. Each tank will have a capacity of 50,000 litres.


    The rainwater tanks will supply water to feed the poultry and will have a top up facility from
    one of the five on-site dams.



    It is estimated by Inghams Queensland that in summer each shed will require 13,000 litres
    for the cool shed pads cells and a average 9,819 litres for drinking water (AVIAGEN Table 7)
    i.e., 22,8191itres total daily use for 30,000 Poultry’s (average shed size) therefore allow a
    average 22,819 litres per shed per day. It is noted that sheds are not stocked all of the year
    as there is a 2.5 week      cleaning period after 7 weeks growing. As such the sheds are
    stocked 71 % of the year.


    Therefore Total water requirements are:


             22,819Iitres/shed/day x 8 sheds x 0.71=Total daily use of 130,394Iitres.
         .   Total monthly use of 3,955,293 litres.


    Rainwater tank and dam supply capacity has been calculated in accordance with Appendix
    B of EN Health Guidelines on the use of rainwater tanks.


    The attached calculations in Appendix 6 show that the thirty two 50,000 litre tanks can
    provide a 12.2% water supply security for the birds.

    The attached calculations in Appendix 7 shows that the utilisation of just two of the seven
    dams on site (each with a volume approximately 5000m3) can on its own supply 99% of the
    required water supply for the Poultry’s.

     A minimum of 24 hours storage is required to ensure there is sufficient supply for the
    Poultry’s in the case of electrical failure. The thirty two 50,000 litre tanks (1,600,000 litres)
    provide 12.2% of the security of supply for the bird’s water requirements and provide 12
    days storage at average usage.

    The tanks will have a top up facility from two of the seven dams to ensure security of supply.


    5        FLOODING ASSESSMENT REPORT

    5.1      Existing Conditions

    This site is not subject to ponding of floodwaters from the adjacent waterways and the Q1 00
    year ARI flood levels. The buildings and carparks are above the Q100 year ARI flood levels.


    5.2      Proposed Drainage System

    The road surface level is proposed to be drained to either an underground drainage system
    or to the verge via sheet flow. The road surface waters will   discharge to the existing Avocado

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    1209 Animal Husbandry   Top Forestry Rd. Ridgewood
                            -
                                                                                  SWQMP_REV_3
    September 2013