Maryland's Approach to SB 227 and Flooding Management

Additional SWM Regulations • . Require 10-year quantity management with a twist, using future precipitation data and volumes, and managing them back to historical 10-year precipitation data and volumes Require watershed studies in areas experiencing flooding and specific quantity management based on unique watershed characteristics • Investigate requirements for quantity management for redevelopment . Review regulations for updates every 5 years Maryland Department of the Environment 51

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