Approved alternative treatment systems

The following table details the approved alternative treatment systems that are approved by the Department of Health WA.
Where nutrient retention is required, the local government should be consulted to determine if the systems’ nutrient removal capacity will meet their requirements.

Manufacture / supplier Brand name Model System capacity Comments Expiry date

Wormsmart Bio-Logical Waste Systems PL

11 Old King Creek Road
King Creek NSW 2446
Ph 1300 967 676

WA Supplier:
Anthony Smith
Ph: 0407247844 or
08 9758 8640 

Wormsmart AWSP1800PF  1800L/day

Septic tanks are approved only for below ground installation only as a primary treatment system with underground disposal.

System not certified to remove nutrients.

Global certification No: 339


Systems assessed and not approved or approval withdrawn

Manufacturer Model Reason not approved / further information
 Filtrex Innovative Wastewater Solutions 


 Certification is not provided as of 29 October 2021
Chankar Environmental Pty Ltd
Advanced Enviro-Septic System AES-28
Department of Health approval withdrawn 27 August 2020
Rootzone Australia
Rootzone 1200
Department of Health approval expired 29 January 2019

More information

Environmental Health Directorate
Department of Health
Telephone: 9222 2000

Last reviewed: 21-12-2023
Produced by

Environmental Health Directorate