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Protection of the Environment Operations (Clean Air) Regulation 2022
81Drainage system
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81 Drainage system
81 Drainage system
(1) A large storage tank must be fitted with a drainage system—
(a) comprising a small sump or tundish fitted under each water draw-off valve, and
(b) connected to a fully enclosed drain.
(2) This section does not apply to a tank that is used only for the storage of a volatile organic liquid, other than crude petroleum, that is received by tank-to-tank transfer from another storage tank.