3114. HAZARDOUS AND BUOYANT MATERIALS STORAGE AND EMERGENCY PLANS

3114 HAZARDOUS AND BUOYANT MATERIALS STORAGE AND EMERGENCY PLANS 3114.1 Any proposed development on a development site that is located wholly or partially inside a flood hazard area and involves a facility that produces, stores, or disposes of hazardous materials shall be considered a critical facility and subject to § 3113. 3114.2 Any proposed development described in § 3114.1 shall be: Elevated or designed and constructed to remain dry and prevent pollution from the facility in the event of a flood reaching the DFE for critical facilities specified in § 3107.4; and (b) Constructed in accordance with the standards for dry floodproofing contained in § 3108.7. 3114.3 The owner of a property or a facility that is located wholly or partially inside a flood hazard area shall store any hazardous materials so that they do not come into contact with floodwaters or become debris in the event of a flood reaching the DFE for critical facilities specified in § 3107.4. 3114.4 The owner of a property or a facility that is located wholly or partially inside a flood hazard area that stores buoyant materials, including tires, storage tanks, lumber, auto body components, insulation, and prefabricated above-ground pools, shall: Not store the materials in a flood hazard area for more than sixty (60) days; and Anchor or enclose the materials to resist flotation. SOURCE: Final Rulemaking published at 72 DCR 006821 (June 20, 2025). District of Columbia Municipal Regulations Environment 20 DCMR § 3114