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Effluent Disposal Approval northern unit
Separation Distance
Feature Adv.
Secondary Primary
Secondary
Top of bank of watercourse / waterbody 10 m 30 m 50 m
Open stormwater drainage channel or drain 10 m 30 m 50 m
Bore or dam 10 m 30 m 50 m
Permanent water table (vertical) 0.3 m 0.6 m 1.2 m
This design complies with all relevant separation distances.
8 Maintenance
Homeowners have a responsibility to ensure the onsite wastewater treatment and effluent
disposal system is maintained and serviced.
The following servicing and precautions are to be undertaken:
• Septic tanks to be checked annually and pumped out when 1/3 full of solids or once every
5 years, whichever is sooner
• Read and follow the Owner's Manual that is provided with the system
• Comply with local authority’s servicing requirements
• Do not manipulate the system so that it no longer complies with the Council issued permit
or the plans located in Appendix A of this document
• Maintain the land application area e.g. regularly mowed and ensure that there is no
ponding of effluent
• Vehicles, animals and general access to the land application area is to be generally
restricted with warning signs erected
• Use low sodium biodegradable soaps and detergents as per the label instructions and no
paints, solvents, chemicals, food scraps, fats, oils or any other solids to be disposed of
“down the drain”
• It is always good practice to minimise / stagger high wastewater generating activities such
as laundry over a full week
• On-site sewage systems are not designed to cope with the flow from garbage grinders
Chris Taylor MEnvMan, BAppSc(Chem), ADCivEng Cert IV DWM003
Director | Taylor Environmental (Australia) Pty Ltd
23 April 2021
Site and Soil Evaluation 53 Martins Road, Cooroy QLD 4563
Taylor Environmental (Australia) Pty Ltd Page 5 of 16
Document Set ID: 21598877
Version: 1, Version Date: 30/08/2021
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