Wat07 Leak detection system – Above Green

(4 credits available)

Aim

To reduce the overall consumption of water in buildings through wastage due to water leaks.

Question

Is the water supply system fitted with an automated leak detection system?

Credits	Answer	Select a single answer
0	A	Question not answered
0	B	No
4	C	Yes

Assessment criteria

Criterion	Assessment criteria	Applicable answer
1	A leak detection system should have the ability to automatically detect the presence of a water leak throughout the water supply within a building. It does not necessarily require a system that directly detects water leakage along part or the whole length of the water supply system, e.g. a system that detects higher than normal flow rates at meters and/or sub-meters would be compliant. The system can be flow based or sensor based.	C
2	The leak detection system should be: Able to easily identify any detected leaks Activated when a continuous flow of water passes through the water meter at a flow rate above a pre-set minimum for a pre-set period of time On all the pipework in a development that the owner/occupier has responsibility for.	C
3	The system does not need to cut off the water supply when the alarm is triggered.	C
4	Where there is a water supply company meter at the site/building boundary, it may be necessary to install a separate flow meter (or alternative measurement system) just after the water supply company meter to detect leaks. However, if the water supply company agrees to some form of leak detection being installed on their meter, this would also be acceptable.	C
5	In order to be compliant, emergency systems such as fire hydrants and sprinklers need also to be covered by a leak detection system.	C

Specific notes

Asset type specific

No facilities

Where the asset under assessment contains no water using equipment and therefore there is no water supply to the building, identify and assess the water supply to the facilities most likely to be used by the occupants and visitors to the asset under assessment.

This rule also applies where the assessment consists solely of an extension to an existing building, i.e. where the extended building contains no new water using equipment because there are facilities present within the existing building.

Evidence

Criteria	Evidence requirement
-	The evidence below is not exhaustive, please also refer to the ‘BREEAM evidential requirements’ section in the scope of the Guidance for appropriate evidence types which can be used to demonstrate compliance.
All	Photographic evidence of water shut off controls.
All	Manufacturer specifications of the leak detection system.