Deep sump catch basins (CB-2, CB-3, and CB-4).If the Consumer is dissatisfied with the size, quality or any other characteristics of the ordered product and wishes to exercise his right of withdrawal, he is obliged to refrain from further use of the product and to ensure that it is returned as soon as possible. Deep sump catch basins shall not be used in place of an oil grit separator for LUHPPLs that have the potential to generate runoff with high concentrations of oil and grease.ĭeep sump catch basins shall comply with the following:(a) The contributing area shall not exceed 0.25 acres of impervious area (b) The distance from the bottom of the outlet pipe to the bottom of the catch basin shall be at least 4feet pipe.ĭeep sump catch basins equipped with hooded outlets can be installed as part of a storm water conveyance system.ĭeep sump catch basins with sumps between 2′ and 4′ for this project, remove approximate 25% TSS as a pretreatment device, including trash and debris.
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