G Madhuramba, S Ponsadai Lakshmi and S Ganapathy Sankari.
Groundwater samples were collected from the study area Mayiladuthurai Taluk during March 2008 to May 2008. The sampling and analyses were performed using standard methods determined by APHA (1995) and BIS (1991). The physico-chemical parameters like pH,EC,TDS,Total Alkailnity,Na,K,Ca,SO42, NO3-,PO43- & heavy metals Cu,Zn, Fe,Mn were within the permissible limit. But the health related parameters TH,Mg F, Pb & Cr were crossed the maximum permissible limit. And hence cannot be used for drinking purpose without introducing into the treatment processes.