ABC Waters Design Guidelines

PUB has launched a template for ABC Waters Professional to submit the design calculations for vegetated swale, bioretention swale and bioretention basin (also commonly known as rain garden). This template specifies the exact parameters which PUB requires in the review of the DC submissions. This template does not replace the standard design reports and drawings associated with the ABC Waters design features.

Effective 1 June 2022, all DC submissions by Qualified Persons (QP) for vegetated swales, bioretention swales and bioretention basins (also known as rain garden) are to be accompanied with the templates below:

Bioretention Basin	Bioretention Basin_v1.3.xlsx
Vegetated Swale	Vegetated Swale_v1.2.xlsx
Bioretention Swale	Bioretention Swale_v1.2.xlsx

Other ABC Waters design features, such as constructed wetlands, soak-away raingardens, cleansing biotopes, etc., not mentioned above are currently not covered by this requirement.