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Challenges / Problems Addressed
• Urban flooding due to stormwater runoff
• Water pollution from surface contaminants
• Groundwater depletion
Context / Scope of Application
• Urban, suburban, and rural areas
• Parking lots, roadsides, residential areas, and industrial sites
• Areas with permeable soil conditions
NBS Solution
• Depressions (basins) or narrow excavated channels (trenches) filled with gravel or permeable material to capture and infiltrate stormwater into the ground
• Slows down runoff and reduces pollutant loads
Impact / Success Indicators and Results
• Reduction in surface runoff and flood risks
• Enhanced groundwater recharge
• Improvement in water quality by filtering pollutants
• Reduced burden on stormwater drainage systems