An Environmental Impact Study was carried mainly to assess the extent of groundwater contamination from a sanitary land fill (SLF) site, Hastsal, located in Western part of metropolitan city of Delhi. The characteristic of leachate generated from the site showed that it was acidic and yellowish in colour with very high concentration of dissolved solids, COD and BOD suggesting higher degree of inorganic and biodegradable organic materials. The results of groundwater analysis in term of BOD, TOC, COD, Conductivity revealed that the quality around the site upto a distance of 100 meter from the SLF boundary is being impacted due to infiltration of contaminated leachate. The bacteriological contamination also revealed that the water is not safe for public use. Impact on ambient air quality showed minor consequence. The level of hydrocarbon (HC), methane around the disposal site was found to be low. A management plan for the site for prevention of release of chemical contaminants to groundwater has been suggested.
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Inamul Haq (2003) studied this question.
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