Onsite Effluent Disposal

The Shire's Environmental Health team is responsible for the design approval and subsequent inspection of all on-site effluent disposal systems within the Shire.


Fees for effluent disposal system applications are set in the Health (Treatment of Sewage and Disposal of Effluent and Liquid Waste) Regulations 1974. All fees (with the exception of the Health Department of WA application fee) should be made payable to the Shire of Derby/West Kimberley.

Download a complete listing of fees and charges for Shire services and facilities.

For further information please contact the Environmental Health Team on 08 9191 0999 or eho@sdwk.wa.gov.au.

Useful Links

Application to Construct or Install an Apparatus for the Treatment of Sewage

Wastewater Management

Understanding Septic Tank Systems