08 - Pollution

Minimizing watercourse pollution – Areas to be assessed - KBCN1633

Criterion 2 should be interpreted as follows: The intent is to provide a list of areas that are likely to present a risk of watercourse pollution. All the listed areas must be considered, however, where a listed area is not present, or it is present but poses no risk of watercourse pollution, this should be justified with supporting evidence. Where the development does not include any of the listed areas, or none of the areas present poses a risk of watercourse pollution, justification and evidence must be provided and this issue should be filtered out, in line with Criterion 1.  

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Refrigerant charge – issue filtering - KBCN1717

Criterion 1 states that if all systems have ≤11lbs refrigerant charge, this issue is filtered out. In the asset, there may be a mixture of systems above or below this threshold. In this scenario, this issue still applies to all other systems with >11lbs refrigerant charge. All systems with refrigerant charge ≤11lbs are excluded from assessment, but if other systems are still in-scope, this issue still applies.

11-Feb-2025 - Published.

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Shared bund – containment capacity - KBCN1885

For shared bunded or contained areas storing two or more hazardous chemical containers/tanks, adequate containment is demonstrated where capacity is at least the greater of:

• 110% of the largest container/tank, or
• 25% of the total capacity of all containers/tanks.

For a single container/tank, containment must be at least 110% of that container/tank capacity. Hydraulically linked tanks must be treated as a single tank. Where local regulations or site-specific risk controls require a more stringent containment volume, these take precedence.

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