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Skip Navigation LinksDepartment of Housing and Public Works > Construction > Building and plumbing > Plumbing and drainage > On-site sewage facilities > Approved systems > Advanced secondary with nutrient removal

Advanced secondary with nutrient removal

Advanced secondary quality effluent with nutrient removal has these compliance characteristics:

  • 90% of samples taken over the test period shall have a BOD5 less than or equal to 10g/m3 with no sample greater than 20g/m3.
  • 90% of samples taken over the test period shall have total suspended solids less than or equal to 10 g/m3 with no sample greater than 20 g/m3.
  • Where disinfection is provided, 90% of the samples taken over the test period shall have a thermotolerant coliform count (determined by either the most probable number of membrane filter technique) not exceeding 10 organisms per 100ml with no sample exceeding 200 organisms per 100ml.
  • Where chlorination is the disinfection process, the total chlorine concentration shall be greater than or equal to 0.5g/m3 and less than 2.0g/m3 in 4 out of 5 samples taken.
  • 90% of the samples, with 95% confidence limits taken over the test period shall have a total nitrogen concentration less than or equal to 10mg/l.
  • 90% of the samples, with 95% confidence limits taken over the test periods shall have a total phosphorus concentration less than or equal to 5mg/l.

Approved facilities

Company name Description Approval documents Expiry date
AWTS Maintenance Services Pty Ltd Envirocycle Model 10 NR Chief executive approval 06/2015 (PDF, 340KB) 19 Mar 2020
Eco Water Pty Ltd Earthsafe D10 S/C model with nutrient reduction Chief executive approval 10/2014 (PDF, 182B) 20 Aug 2019
Earthsafe D10 S/F model with nutrient reduction Chief executive approval 12/2014 (PDF, 196KB) 20 Aug 2019
Everhard Industries Pty Ltd AquaNova NR 8 EP advanced secondary wastewater treatment system Chief executive approval 05/2015 (PDF, 299KB) 19 Mar 2020
Magnesium Tech Pty Ltd ​Magnesium Domestic Membrane System
(DMS 15 EP)
Chief executive approval 25/2015 (PDF, 454KB) ​10 September 2020​
Suncoast Waste Water Management ​OzziKleen RP10A+ Chief executive approval 02/2017 ​8 February 2021

More information

See on-site sewerage or contact Building Codes Queensland for more information.​



Last updated 29 July 2019    Creative Commons Attribution 4.0 International (CC BY 4.0)


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