CSI14096#2LakewayDriveCooroibah-Rev1 AES Final

5. Land Application Method and Area:
•   The bed shall be mounded and cut into natural ground only enough to create a toe in natural ground
•   It is proposed that disposal be by 300mm AES pipes layed in a bed of washed coarse sand.
•   Installation to be to AES Design and Installation standards by a suitably experienced, qualified and licenced
    plumber/drainer.
•   The bed will be a minimum of 9.6 long x 2.7m wide with an additional 9.8m system extension due to high category
    soils. The AES bed will be 900mm deep which will include 300mm system sand below the pipes, 150mm system
    sand above the pipes and 150mm topsoil above that sand. The system sand extension shall be downhill of the main
    bed and be a minimum 150mm deep by the length of the bed by 9.8m wide and located at the bottom of the bed
    depth.
•   An inspection port is required to be installed at the furthest point from the influent to AES pipe.
•   Plan to excavate in dry times if possible.
•   Strip topsoils for use later as topsoil over AES system.
•   Ensure that the natural soil is not compacted or smoothed over while excavating and installing and that clay soils
    are scarified 200mm deep. Gypsum may be added to clay.
•   Diversion drains/mounds will be required to intercept any surface waters draining onto and from the disposal area.
•   A Primary Septic system complying to AS1546.1 2008, with a pump well, is to be used.
•   The Land Application area shall be grassed. Native shrubs (with non-intrusive roots suitable for the local area and
    for being adjacent to effluent disposal areas – see horticulturist for advice) should be planted at the downhill edge of
    the land application area. Access for future maintenance should be considered.
•   The land application area shall be in the vicinity of Test holes (TH).
•   The area shall maintain a distance of 10m away from the watercourses.
•   This report has been compiled using information supplied by the owner i.e. 5 (five) equivalent bedrooms. If
    information has changed this report will become void and may not be used and will need to be amended (further
    charges will apply).




CSI: 14096#2LakewayDriveCooroibah-Rev1

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