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

Filtrex Innovative Wastewater Solutions (external site) 
PO Box 5122
BUNBURY WA 6231
Ph: (08) 9726 0118
Fax: (08) 9726 0117
Email: info@filtrex.com.au  

 Filtrex Alternative Treatment Systems

 ATS-2

 Up to 564L/day

Certification trial results showed that the system has the following nutrient removal capacities:

  • TP (% removal): 95%
  • TN (% removal): 75%

Refer to product approval conditions for further information on installation requirements.

26/10/2021

 ATS-4

 Up to 829L/day

 ATS-5

Up to 1099L/day 

 ATS-6

Up to 1369L/day 

 ATS Gen-X

Variable (approved for commercial systems)

Wormsmart Bio-Logical Waste Systems PL
60 Country Club Drive
SAFETY BEACH VIC 3936

WA Supplier:
Anthony Smith
Ph: 0407247844 or
08 9758 8640 
Email: info@ecowastewater.com.au
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

25/08/2026

More information

Last reviewed: 27-07-2021
Produced by

Environmental Health Directorate