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Delhi, Restoring the Aravali Slope – Preventing flooding

Project Description

CURE, with support of USAID, is restoring one slope of the Aravali Bio-Diversity Park that edges the Nepali Basti. At the end of the slope, is a mine pit filled with water. Over the years, waste dumped along the slope, and in the water has reduced the permeability of the soil and pit’s holding capacity. The slightest of rain causes water to overflow into homes at the edge of the pit. Four affected stakeholders here are; Nepali camp residents and their neighbours in Bhanwar Singh Camp who defecate on the slope, dump waste and rear pigs; Delhi Development Authority that protects the park; residents of Vasant Vihar who prefer the settlement cleared; and the pigs who wallow in the sewage. Flooding was a key community concern and a health priority. The restoration plan has three key components – rid the slope off waste, stabilize and improve permeability by planting trees, reuse pit water to reduce water collection in the pit, and treat and reusing wastewater. The Plan was shared both with the community to get their consent and participation, and the DDA Bio Diversity Team for their suggestions. Community led the slope clean up. Wastewater drains were deepened. Bundhs were built using slope stones and filled with gravel and sand to create cascades, to retain, consume and treat wastewater. Deep-rooted, native plants and earthworms shall naturally purify the wastewater. Living banks with floating reed beds of bamboo, coir and coconut logs; and wetland plants will treat pool water and recycle for irrigating new plants and grasses, reducing volume and flooding. Pigs shall be fenced behind bamboo eco-fences.

Project Details

  • Date January 1, 2016
  • Tags Environment
  • Project Location

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