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Abstract-
In order to evaluate the suitability of groundwater for industrial use a comprehensive study was undertaken for the two adjoining towns namely Nalagarh and Baddi of the hill state, Himachal Pradesh in the north of India. A total of 25 and 40 groundwater samples were collected, from 65 different locations of Nalagarh and Baddi industrial areas during post-monsoon season of 2011 and pre and post-monsoon seasons of 2012. The overall corrosivity ratio (CR) of groundwater was ranged from 0.201-1.587 and 0.263-1.543 at Nalagarh and Baddi industrial areas respectively. The overall averaged corrosivity ratio value at Nalagarh and Baddi industrial areas were less than 1, hence suitable for industrial use. The findings also suggest that higher values of corrosivity ratio of groundwater are restricted to a few localized areas. Therefore, serious attention should be given to the industrialist, policy and decision makers to the locations having more than 1 corrosivity ratio value for better industrial production. However, conventional treatment of effluents from semi-urban and urban areas is highly desirable to minimize the corrosiveness of groundwater in such altered areas to arrest further deterioration. This study which is based on corrosivity ratio of groundwater can be considered as an eye opener for the localities.