Pol01 - Minimising watercourse pollution – Above Green

(4 credits)

Aim

To reduce the risk of polluting natural watercourses through contaminated surface run-off and/or grease from kitchen facilities entering drainage systems.

Question

Are there light-liquid separators fitted within the drainage system to vehicular areas and/or grease separators/filters for commercial kitchen facilities?

Credits	Answer	Select all that apply
0	A	Question not answered
0	B	No
2	C	Yes, light-liquid interceptors are installed within the drainage system where potential sources of pollution exist
2	D	Yes, grease separators/ filters are installed within commercial kitchen facilities

Assessment criteria

Criterion	Assessment criteria	Applicable answer
1	Filtering Where the asset does not require light-liquid separators or grease separators, the associated credits can be filtered out of the assessment.	All
2	Areas that serve the asset need to be assessed. Those that presents a risk of watercourse pollution and require light-liquid/ oil separators include: vehicle maneuvering areas car parks waste disposal facilities delivery and storage facilities plant areas	C
3	Where no light-liquid separators or grease separators are present, the Assessor will need to confirm that there are no areas at risk of pollution or commercial kitchens on-site.	C,D

Specific notes

Indoor parking

If the design team can demonstrate that there will be absolutely no run-off from the indoor parking, then the intent of the credit will be met. However, such proof would also have to demonstrate that no hydrocarbon spillage from vehicles found its way into the watercourse/sewer. It is likely that there would be water ingress from outside or that internal parking areas would have drains fitted and be cleaned regularly. In such conditions, the criteria are still applicable.

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.
2	Photographic evidence of separator equipment installed on-site
2	Site plans detailing location of separators.
1,3	Site plans or the Assessor’s site inspection report confirming that the site has no areas with potential sources of pollution at risk or commercial kitchens.

Definitions

Commercial kitchens:

Commercial kitchens are found in restaurants, cafeterias, hotels, hospitals, educational and workplace facilities, army barracks, and similar establishments. These kitchens are generally larger and equipped with bigger and more heavy-duty equipment than a residential kitchen or office kitchenette.

Light-liquid/oil separators:

A vessel, part of a surface water drainage system, into which potentially contaminated wastewater will flow and where light free-floating liquids such as oil are separated from the wastewater by means of gravity and/or coalescence and retained.

Watercourses and sewers:

A term that includes rivers, streams, ditches, drains, culverts, dykes, sluices, sewers and passages through which water flows.