Advanced secondary - Department of Infrastructure and Planning

Advanced secondary

For effluent that is to be of secondary quality it shall meet the following effluent compliance characteristics:

90% of the samples taken over the test period shall have a BOD5 less than or equal to 20g/m3 with no sample greater than 30g/m3.
90% of the samples taken over the test period shall have total suspended solids less than or equal to 30g/m3 with no sample greater than 45 g/m3.
Where disinfection is provided, 90% of the samples taken over the test period shall have thermotolerant coliform cound (determined by either the most probably number of membrane filter technique) not exceeding 200 organisms per 100ml with no sample exceeding 1000 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 four out of five samples taken.

Approved facilities

For further information phone +61 7 3804 1522 or 1300 368 058.

For further information phone +61 7 5495 6606 or 1300 789 588.

For further information visit www.ecosafe.com.au or phone +61 7 5429 5322.

For further information visit www.biolytix.com or phone +61 7 5435 2700 or 1300 881 472.

For further information visit www.econova.com.au or phone +61 7 5441 3569.

For further information phone Brisbane +61 7 3637 5999.

For further information phone Brisbane +61 7 5494 2979.

For further information visit www.ozzikleen.com or phone Brisbane +61 7 5453 4466.

For further information visit www.taylex.com.au or phone Brisbane +61 7 5571 5122 or 1800 642 342 (national free call number).

For further information visit www.qualitytanks.com.au or phone + 61 7 3382 7666.

For further information visit http://www.watertech-systems.com or phone Brisbane +61 7 3269 6314.

For more information about on-site sewerage, see our On-Site Sewerage page, email Building Codes Queensland, or phone 07 3237 1714.

Last Updated ( Wednesday, 27 August 2008 )