Abstract
This study was conducted to measure the impact of a municipal solid waste landfill on groundwater quality around Njelianparamba, a solid waste dumping site in Kozhikode district, Kerala state, India. One of the major problems associated with dumping of municipal solid waste landfill is the release of leachate and its impact on surrounding groundwater. In this study, physico-chemical and bacteriological parameters of groundwater samples collected from the region surrounding the leachate area during the pre- and post-monsoon seasons were analysed. The majority of the groundwater samples contained contaminants at a level beyond the permissible limit set by the Bureau of Indian Standards for drinking water quality. The Geographic Information System software of the Environmental Systems Research Institute, (USA) ArcMap 10.1 was used to prepare spatial distribution maps of different parameters and Leachate Pollution Index and Water Quality Index in the study area were applied to assess the overall quality of groundwater. Characterisation of leachate and groundwater samples revealed that, water in the domestic wells has been deteriorated in response to the percolation of leachate. Additionally spatial and correlation analysis revealed that contamination was present maximum within 300 m radius around the landfill site.
Highlights
Groundwater has long been considered as an important water source owing to its relatively low susceptibility toHow to cite this paper: Chonattu, J., Prabhakar, K. and Pillai, H.P.S. (2016) Geospatial and Statistical Assessment of Groundwater Contamination Due to Landfill Leachate—A Case Study
The impact of landfills leachate on the surrounding groundwater quality in Njelianparamba, India is a major environmental concern of the area
The results showed that the wells in close proximity to the landfill (NP-5, NP-6, NP-8, NP-9 and NP-18) were most affected by leachate percolation
Summary
Groundwater has long been considered as an important water source owing to its relatively low susceptibility toHow to cite this paper: Chonattu, J., Prabhakar, K. and Pillai, H.P.S. (2016) Geospatial and Statistical Assessment of Groundwater Contamination Due to Landfill Leachate—A Case Study. Groundwater has long been considered as an important water source owing to its relatively low susceptibility to. (2016) Geospatial and Statistical Assessment of Groundwater Contamination Due to Landfill Leachate—A Case Study. Journal of Water Resource and Protection, 8, 121-134. Groundwater is comparatively safe and reliable when compared with surface water [1]. Deterioration of groundwater quality has become a serious problem in recent years. Groundwater is not contaminated, but once this occurs it is difficult to remediate. The indiscriminate dumping of municipal solid wastes over vast areas that occurs in developing countries, poses a serious threat to the groundwater quality. In Kerala, groundwater or dug wells are the most reliable water sources and 63% of the populations depend on groundwater for their drinking, domestic, and agricultural needs [2]
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