Abstarct: Urban development and population growth have led to an increase of solid waste production in urban areas as one of the most important threats to the environment. Therefore, waste management has a crucial role from environmental point of view. At the present, waste sanitary landfill is the most cost-effective solid waste disposal system, which has considerable effect on pollution reduction and environmental monitoring costs. The main objectives of this study are assessment of Behshahr current landfill effects on the surrounding environment and new landfill site selection for east of Mazandaran Province. For this reason, 12 soil samples have been chosen from surface soil of landfill site and neighbor agricultural lands and after preparation, the samples were analyzed by ICP-OES for measuring 35 elements. Among the analyzed elements, 8 elements including cobalt, zinc, copper, arsenic, molybdenum, chromium, nickel, and cadmium were evaluated. The obtained results were compared with 4 soil contamination standards. The results indicate that the average values of cobalt, cadmium, zinc, copper, arsenic, and nickel were higher than pollution limits of the standards. Statistical analyses were performed on the results by employing Pearson’s correlation matrix, enrichment index, pollution index, and pollution load index. The measured pollution index indicates that the studied soils have moderate rate of human induced pollution and from enrichment index standpoint the Cd>As>Zn>Cu>Ni>Co>Cr>Mo trend can be seen. Furthermore, for assessment of landfill leachate on heavy mextals contamination of groundwater, 11 samples were selected from spring and wells in neighbor of the landfill and were analyzed by ICP-MS. The results indicated that groundwater was not affected by landfill leachate. In order to select a suitable landfill site for urban solid waste disposal in east of Mazandaran, several criteria such as land use, groundwater quality, groundwater level, permeability, slope angle, distance from the waste production center, distance from surface water, wind direction, distance from road, rainfall, borrow materials, seismicity, and distance from the fault were considered. All of the criteria laxyers were classified using ArcGIS software. The hierarchical analysis process (AHP) method was then used to weigh the information laxyers. By integrating the results of GIS and the hierarchical analysis process, the studied area was classified as suitable, relatively suitable, relatively inappropriate and inappropriate from landfilling susceptibility standpoint. Finally, by considering environmental and operational criteria, a suitable site for municipal solid waste disposal was proposed.