Bore well water is the under ground water that comes  the seepage of surface water and is held in sub-soil and rocks. Bore well water is expected to be good in quality and less polluted. The use of fertilizers, pesticides and insecticides in rural areas, lime, bleaching powder, septic tanks, refuse dumps, etc., in urban areas are the main sources of soil and under ground water pollution. 
Physico-chemical analysis such as temperature, pH, and dissolved oxygen, total dissolved solids, chlorides, total alkalinity, calcium and magnesium hardness, Sulphate, phosphate, nitrate of bore wells water was carried out from ten sampling stations of West Nimar Region during June 2005 in order to asses water quality index.