On-Site Effluent Disposal Report

7.6     Siting of the Land Application Area;

The current Code of Practice for On-site Sewerage Facilities provides minimum horizontal/vertical separation
distances for Land Application Areas. They are as follows;
Please Note ASI can provide a final design and location of disposal area when a house location is finalised.

ADVANCED SECONDARY

Sub-Surface or Covered Surface Land Application Areas

Property Boundaries Upslope from the Area        -        2.0m
Property Boundaries Downslope from the Area      -        4.0m
Dwellings or buildings                           -        4.0m
In ground swimming Pools                         -        6.0m
In-ground potable Water Tanks                    -        15.0m
Dams, Watercourses or Bores                      -        10.0m
Vertical distance to water table                 -        0.6m
Footpath                                                  2.0m
Footpath(Downslope)                                       4.0m
Driveway                                                  2.0m
Driveway (Downslpoe)                                      4.0m

NOTE:- REFER TO QUEENSLAND PLUMBING AND WASTEWATER CODE FOR SITING OF ON
       SITE SEWERAGE FACILITY FOR LOCATION OF TREATMENT PLANT. TREATMENT
       PLANT MUST BE 150mm ABOVE Q100 FLOOD LEVEL.

8.0     SYSTEM MAINTENANCE:

The owner of the property shall ensure that all manufacturers maintenance procedures are undertaken in
accordance with the local authority and the manufacturers recommendations for what ever system is installed.
The system must be inspected/tested on a regular basis in accordance with the manufacturers requirements and
all Statutory requirements from relevant local and state government agencies.


9.0     SYSTEM INSTALLATION:

Installation of any system must be undertaken by a qualified plumber in accordance with local authority
requirements and in accordance with the relevant Australian Standards and Australian Building Code.


10.0    DEFINITIONS

Design Loading Rate (DLR)
The long term acceptance rate (LTAR), reduced by a factor of safety, expressed in L/m2/day or mm/day as applied
to the horizontal design area of a land application system.
Design Irrigation Rate (DIR)
The loading rate that applies to the irrigation of a land application area with effluent of a secondary quality. It is
expressed in L/m2/day or mm/week. If a spray irrigation system is used, the secondary effluent is subject to
continuous disinfection.
Durable Aggregate
An aggregate with the grading requirements specified in AS 2758.1 for single-size course aggregate for nominal
sizes from 20mm - 40mm.
Dry Vault
Commonly known as “composting toilets”, a chamber that receives and treats human and domestic organic waste
using a biological degradation or dehydrating process. The only water used is for cleaning or assisting the
biological degradation process.
Geotextile
Any permeable durable synthetic textile material used with foundations, soil, rock, earth or other geotechnical
engineering related material.
Land Application Area
The designated area of land and reticulation system used for the disposal of the treated effluent.
AUSTRALIAN SOIL INVESTIGATION                             8                                    ASI Ref: 210264(A)