This case study paper reviews ground water pollution to agriculture soil due to the natural shale value of heavy metals in soil system. Thus, untreated industrial effluents can cause an environmental threat to ground water resources and affects soil quality and agricultural plant productivity. To achieve unpolluted wastewater discharge into receiving water bodies, careful planning, adequate and suitable treatment, regular monitoring and appropriate legislations are necessary. Parameters that

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... be tested include temperature, pH, turbidity, salinity, nitrates, TDS, Captions, Anions and phosphates. Rapid Increase in population, Construction of residential complexes and wide spread Industrialization in Namakkal Town has drastically reduced the land area for wastewater disposal Groundwater pollution occurs when untreated or partially treated Industrial waste water are discharged on to the land or used for Irrigation, enabling the waste to migrate down the water table through soil. Rapid industrialization and use of chemical fertilizers and pesticides in agriculture are causing deterioration of water quality and depletion of aquatic biota. This aim of the case study was to assess the quality of the ground water and the impacts of the Municipal wastewater. This study will be very helpful to under-stand the impact/evaluation of the rate of dumping of effluent water in ground water and impact on the quality of water in terms of irrigation and the impacts onto the environment.