§ 193.2183 - Impoundment capacity: equipment and transfer systems.  


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  • If an impounding system serves a component under § 193.2149(b) (1)-(3), it must have a minimum volumetric liquid impoundment capacity equal to the sum of—

    (a) One-hundred percent of the volume of liquid that could be contained in the component and, where applicable, tank car or tank truck served; and

    (b) The maximum volume of liquid which could discharge into the impounding space from any single failure of equipment or piping during the time period necessary for spill detection, instrument response, and sequenced shutdown by the automatic shutdown system under § 193.2439.