Process water to offset potable water demand - KBCN0586
Where it is demonstrated that it is safe to do so, process water resulting from the building under assessment, can be considered for off-setting potable water demand from components that would otherwise be supplied using potable water, when in line with the criteria requirements for greywater systems.
Process water resulting from the building under assessment can be considered as a form of greywater for the purposes of off-setting potable water demand.
21 Dec 2021 Additional wording added, requiring it to be demonstrated that process water is safe to use and KBCN applied to BIU standards.
Using water from natural underground sources to offset water consumption - KBCN00094
Water from natural underground sources (for instance aquifer water accessed via boreholes) cannot be used to offset:
- NC / RFO: potable water consumption.
- IU: utility supplied water consumption.
A significant amount of water used for public consumption is already drawn from aquifers. Private boreholes may be drawing water from the same sources as public utility companies.
27-Mar-2024 - Title and text updated to broaden definition. Scheme applicability updated.
Information correct as of 24