Option

Strengthen stormwater management standards and capacity requirements

Details

Focus of action

Standards

Examples from plans

This option appears in resilience plans from around the country.

Option from plan	Hazards Sort descending	Assets	Region	Source Plan
Design program policies to promote stream and wetland restoration. Ensure adequate retention, drainage and diversion of stormwater. Such policies could also encourage green infrastructure such as grassy	Flooding – Coastal Flooding – General	Urban Landscape and Tree Canopy Water Infrastructure – Wastewater Water Infrastructure – Stormwater	National	HUD Community Resilience Toolkit (p. 15)
Strengthen stormwater management regulations to account for future sea level rise conditions.	Flooding – Coastal	Water Infrastructure – Stormwater	Southeast	Charleston, South Carolina - All Hazards Vulnerability & Risk Assessment (p. 180)
Implement Best Management Practices for stormwater when constructing or rehabilitating housing and public facilities.	Flooding – General	Property Water Infrastructure – Stormwater	National	HUD Community Resilience Toolkit (p. 15)
Develop uniform watershed-based stormwater policies across jurisdictional boundaries.	Flooding – General	Water Infrastructure – Stormwater	Southeast	State of Louisiana Regional Adaptation Strategy (p. 104)
Develop or update stormwater rules.	Flooding – General	Water Infrastructure – Stormwater	Southeast	Southeast Florida Compact Regional Climate Action Plan - Energy and Fuel
Increase stormwater management requirements for retaining water.	Flooding – General Flooding – Rainfall-induced	Water Infrastructure – Stormwater	Southeast	Planning for Climate Resilience—City of Asheville, North Carolina (p. 115)
Require or incentivize additional stormwater detention efforts (e.g., green streets, swales, underground storage tanks).	Flooding – General Flooding – Rainfall-induced	Water Infrastructure – Stormwater	Southeast	Triangle Region, NC Regional Resilience Assessment (p. 201 (pdf p. 213))
Increase drainage and storage design standards for private development.	Flooding – General Flooding – Rainfall-induced	Property Water Infrastructure – Stormwater	Southeast	West Palm Beach, FL - Rethink Paradise: Sustainability Action Plan
Require hydrologic matching before and after new developments for commercial properties.	Flooding – General Flooding – Rainfall-induced	Property	Southeast	Planning for Climate Resilience—City of Asheville, North Carolina (p. 115)
Develop and adopt a cohesive regional stormwater ordinance. Include baseline best practices and the option for communities to go beyond minimum requirements.	Flooding – General Flooding – Rainfall-induced	Water Infrastructure – Stormwater	Southeast	Miami Forever Climate Ready Strategy
Enhance existing stormwater ordinance to detain 25-yr storm.	Flooding – Rainfall-induced	Water Infrastructure – Stormwater	Southeast	Planning for Climate Resilience—City of Asheville, North Carolina (p. 115)
Develop policy to increase capacity beyond a 3-year event (2-3 inch storm) for stormwater without a timeline that is adopted by the Commission, identify	Flooding – Rainfall-induced	Critical Facilities	Southeast	West Palm Beach, FL - Rethink Paradise: Sustainability Action Plan
Reduce threshold for stormwater quantity control and consider improvements to streams: increase quality control, improve incentives for current roles to increase quantity and infiltration	Flooding – Rainfall-induced	Water Infrastructure – Stormwater	Southeast	Planning for Climate Resilience—City of Asheville, North Carolina (p. 116)
Require higher stormwater treatment design standards for water quality related to outputs and surface water assets.	Water Quality	Aquatic and Marine Resources Water Infrastructure – Stormwater	Southeast	West Palm Beach, FL - Rethink Paradise: Sustainability Action Plan
Set a goal to become stormwater neutral by increasing the ability of the jurisdiction to capture, infiltrate, retain or evapotranspirate the first inch of rainwater. This achievement would benefit local	Water Quality Erosion and Shoreline Recession Flooding – General Flooding – Rainfall-induced	Urban Landscape and Tree Canopy Water Infrastructure – Wastewater Natural Areas and Wildlife Water Infrastructure – Stormwater	National

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