Groundwater quality in and around thanjavur town in Tamilnadu– India (pre-monsoon season)

Water pollution is one of the most important environmental problem faced by the World. Characterization of physio-chemical parameters of groundwater from 43 different locations nearby the small scale industries and rice mills in and around Thanjavur town have been carried out. A Laboratory study of Groundwater was carried out and the quality analysis has been made through Ph, Tds, EC, TH, TA (Hco3), Ca+2, Mg+2, Cl-, Na+, So4-2, No3--, K+, and Tubudity. The results were compared with standards prescribed by WHO and CPHEEO in order to find out the groundwater suitability for domestic and agricultural purposes which indicated that the mean value of studied parameters except EC (Electrical conductivity), TDS (Total dissolved solids), (Th) Total hardness, (Cl) Chloride, (Ta) Total alkalinity and (Na) sodium samples taken from the Bore well water, open well water and the surface water were within the permissible limit and the groundwater in few areas were not much suitable for domestic and agricultural purposes. Thus the objective of the study is to identify the quality of groundwater in the town and nearby area of Thanjavur town especially adjacent to the small scale industries where groundwater is used for domestic and agricultural purposes are discussed and also a systematic calculation of correlation coefficient has been calculated for water quality assessment.