Appendix D - Effluent Disposal System

                                                                                                    QBCC: 15336345 ABN: 35 622 809 376




    1. INTRODUCTION & BRIEF
         The Owners are proposing a three (3) bedroom dwelling to be serviced by an Aerated On-site
         Sewerage Facility supplying advanced secondary treated effluent to above ground irrigation.


    2. SITE INVESTIGATION
         Ground Drill
                Soil Category            5                        Percolation                   0.06 - 0.12 mm/day
                Structured               Moderately               DIR                           3
                Soil Type:               Light Clays              Site Classification          “M-P”




    3. EFFLUENT DISPOSAL AREA
         The effluent disposal area is to be fixed heavy droplet wobbler sprinklers onto existing vegative area.
         Place a clay bund mounding around the upper sides of the disposal area to divert stormwater around
         the area. Install 9 turf heavy droplet wobblers with a maximum throw of 3m radius.


    4. TOTAL DISPERSAL AREA FOR IRRIGATION
                 Bedrooms 3                                      People                        5 persons
                 Water Supply                 Rain               Daily flow per person 120 Litres per day
                 Total Daily Flow Loading                     = 600 Litres per day



          Therefore Total Disposal Area                      System Design Flow = 600L = 200
                                                                    DIR            3

          In this case adopt 254 square meters of irrigation area due to the size of the wobblers.




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