Appendix J - Water Supply and Wastewater Servicing Report

Lutheran Services                                                                            Page 12 of 15
PF80 - Cooroy Care Farm
24 May 2018                                                                             Ref. No. 2017.0616




4       NON-POTABLE WATER SUPPLY
        4.1          Proposed Non-Potable Supply
        Dam water from the on-site dams will be harvested for irrigation of gardens and landscaping and
        for watering stock.


        4.2          Non-Potable Water Demands
        External water demands will depend on the areas under irrigation (landscaping and cropping) and
        the type of crop grown, and the number and type of stock kept on the site. Indicative demand
        rates are provided in Table 8.

Table 8 Non-Potable Water Demand Rates

           Use                                        Demand Rate

 Average garden water demand (indicative)             2 mm/day (lawn)
                                                      2 mm/day (landscaping)
                                                      3 mm/day (trees)
 Average crop water demand (indicative)               3 mm/day (vegetables)
                                                      3 mm/day (other small crops)
                                                      3 mm/day (fruit trees)
 Stock water demand (indicative)                      40 - 100 L/day (cattle)
                                                      40 - 50 L/day (horses)
                                                      2 - 6 L/day (sheep)


        The estimated demand for non-potable water, based on the assumed land uses in Table 3 and
        the demand rates in Table 8, is provided in Table 9. Note that these estimates are conservative
        and will depend on the nature of the landscaping developed on the site and how this is managed.

Table 9 Average External Water Demands

 Item                               Assumption                      Average Demand
                                                                    (ML/yr)
 Gardens / Courtyard                3 mm/day                        1.8
 Landscaping                        2 mm/day                        11.7
 Stock:
 -    Chickens                      1 L/day ea                      0.007
 -    Cattle                        100 L/day ea                    0.15
 -    Horses                        50 L/day ea                     0.07
 -    Sheep                         5 L/day ea                      0.009
 Totals                                                             13.7