Roof drainage from mechanical equipment routes down into a stormwater control structure located at the perimeter street. Overflow is managed via an existing catch basin per plan, while the main flow travels to a drywell unit designed for the eighty-fifth percentile flow to a Low Impact Development system. Internal storm drain routing is coordinated with plumbing plans.
PERIMETER STREET DRYWELL UNIT ROOF DRAINAGE FROM MEP 85TH PERCENTILE FLOW TO LID SYSTEM. SEE PLUMBING PLANS FOR STORM DRAIN ROUTING INTERNAL TO BUILDING. EX. CATCH BASIN STORMWATER CONTROL STRUCTURE PER PLAN HEREON NOTE: THIS SECTION IS A DIAGRAMMATIC REPRESENTATION OF THE STORMWATER TREATMENT SYSTEM ROUTING WITHIN THE BUILDING. SEE PLUMBING, STRUCTURAL, AND ARCHITECTURAL PLANS FOR DETAILS. OVERFLOW VIA EX. CATCH BASIN PER PLAN
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