WAT 01 - Water monitoring

Erratum – up to V6.0.0 – missing and inconsistent definitions - KBCN1567

Scope The scope of this issue includes blackwater. Criterion 4 should include 'd) blackwater harvesting'. Definitions The definition for 'blackwater' is missing from this issue, and the definition for 'greywater' is inconsistent with other issues in the manual. The following text will be updated in the next revision of the manual: 'Blackwater - Wastewater that has been discharged from kitchen and utility sinks, urinals and toilets within the asset.' 'Greywater - Water that has been discharged from all sources other than kitchen and sewage within the asset.'  

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Sub-metering technologies – Compliance Principle - KBCN1561

Where it can be demonstrated that alternative sub-metering technologies can meet or exceed the capabilities of systems set out in the BREEAM guidance, subject to approval, these can also be considered compliant. It is the role of the Assessor and the project team to provide evidence and justification in a compliance principle query (see KBCN1555). The following metering standards or technologies are currently recognised as alternatives to pulsed output meters:

• M-bus. I.e. systems that comply with the EN 13757 series of standards. Also includes systems complying with the OMS (Open Metering System) standards.

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Submetering – no additional monitoring benefit - KBCN1637

Where the asset is targeting answer E (submetering) and:

• Can show that there is no additional monitoring benefit from installing submeters in line with criterion 5 and,
• Has met the requirements for answers C (site metering) and D (building metering),

then the 6 credits for answer E are awarded by default.

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