Water Source

Is the property sufficiently large enough for the system being used?

Risk Rating

Is the volume of waste putting the system at risk of failure?

Is the site well covered with either grass or established gardens?

What basic soil type is present (if known)?

Risk based on soil type

Is there an established effluent disposal area that is being satisfactorily managed?

Does the system have a sufficient number of sprinklers to evenly distribute treated effluent over the irrigation area?

Location of nearest water course

Distance to drain

Distance to neighbouring property

Is there evidence of surface effluent or water logging of ground?

Risk created by surface effluent or water logging?

Is any effluent migrating off the property

Is there any odours detectable?

Are all components of the tank in working order

Risk created by faulty components

Has the solids tank been de-sludged?

Does the owner / occupant have a good understanding of the components and operation of the system?

Risk based on owners knowledge of the system

Is there a reason for immediate failure?

System rating