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Tehran in a region where the organization is alluvial soil of the earth. On the north slopes of the Alborz Mountains to the south and the plain is limited. In the northern parts of the province because of the mountains and spread them wide plains as a reluctant but particularly in the Southern and Eastern provinces fertile lowlands southwest of Karaj and Varamin Ray there. The geographic area of Tehran, Karaj, the mountains and the plains by the river and Jajrood is limited. Jajrood center and source of the two rivers and mountains Karaj “Kharsang Mountain”, which Dizin and Shemshak slopes on either side of it. Population growth and density per unit area, the development of services and educational institutions such as hospitals, universities, schools, offices and commercial centers and industrial production units and increasing the number of vehicles and traffic, a significant amount of pollutants and waste, and urban industry has brought, each in its own special despite the rocky bed of the northern highlands and altitude, East and South, as well as underground water bowl out and groundwater in the area is enclosed. Due to increasing population growth in recent years, the bulk of these waters with industrial and domestic waste water flows on the surface and deep in the Earth, the contamination of soil and water resources, environmental problems has doubled in Tehran and the entry of various pollutants in addition to the introduction of quality underground water sources with access to groundwater contamination that resources follow their use is necessary to protect health and the environment.

The Quality Pollution and Anomaly Anions and Cations Underground Water Resources in the South East of Tehran