Complete on-site wastewater system design and soil percolation testing to AS 1547 and the Queensland Plumbing and Wastewater Code — for new dwellings, granny flats, and bedroom additions.
Full design to Australian Standard AS 1547 and the Queensland Plumbing and Wastewater Code.
Required for new homes, granny flats, and any addition of bedrooms to existing dwellings.
Includes site assessment, drilling, percolation test, and full AWTS design report.
All councils in South East Queensland now require new dwellings, and any addition of bedrooms or granny flats to existing dwellings, to have a soil percolation test and wastewater design completed as part of their development application. All designs must be completed by a suitably qualified person.
We provide soil percolation (perc) testing for wastewater design and a complete on-site Aerated Wastewater Treatment System (AWTS) design service to Australian Standard AS 1547 and the Queensland Plumbing and Wastewater Code. Our reports are prepared by qualified professionals and accepted by all SEQ councils.
| Item | Detail |
|---|---|
| Standards | AS 1547 — On-site Domestic Wastewater Management; Queensland Plumbing and Wastewater Code |
| Site Assessment | Full on-site inspection and soil investigation |
| Drilling | Soil profile investigation by drilling |
| Percolation Testing | In-situ soil percolation (perc) test |
| AWTS Design | Complete on-site wastewater treatment system design |
| Deliverable | Certified wastewater design report for council submission |
| Acceptance | All SEQ councils |
Includes site assessment, drilling, percolation test, and full AWTS design. Cost may vary with travel distance.
All councils in South East Queensland require a soil percolation test and wastewater design for new dwellings, granny flats, and any addition of bedrooms to existing dwellings where the property is not connected to the reticulated sewerage network. This is required as part of the development application process.
A percolation test (perc test) measures the rate at which water drains through the soil on your site. This information is essential for designing an on-site wastewater treatment system that will function correctly and not cause environmental harm or system failure.
Yes. We can conduct both the site classification and the wastewater percolation test in a single site visit, saving you time and reducing overall costs. Contact us for combined pricing.
We design Aerated Wastewater Treatment Systems (AWTS) to Australian Standard AS 1547. The specific system type and land application area will be determined based on the results of the percolation test and the site assessment.
