The increased rate of industrialization coupled with rapid urbanization in Pakistan has given rise to serious water pollution and environmental problems. A vast range of industries has been established in the country during the last twenty five years, including tanneries, fertilizers, textiles, refineries, chemicals, vegetable oils, paper and pulp, sugar and food industries. Little attention however, has paid towards a large scale release of wastewater from these industries. Presently, wastewater produced from these industries has been considered a serious problem and research is being conducted to solve its associated problems. Recently, it has been realized that there is a significant threat of water-borne diseases, degradation of freshwater quality, environmental depletion and soil deterioration from the effluent and toxic emission of industries. Being a developing country and having limited resources, it is hard to install treatment plants on the industrial effluent with every industry before discharging them into streams. In this paper, an effort has been made to solve wastewater problems by implementing statistical tools on data of Karachi industrial state.