Urban watersheds : geology contamination and sustainable development This handbook presents 10 years of research on contaminants affecting lands and waters within heavily urbanized. It integrates research and professional practice from the fields of environmental geology geochemistry risk analysis hydrology and urban planning and offers knowledge on improving watershed management practices and urban development. It explains different aspects of urban land and water contamination; including sources extents and risks. The text includes case studies on successful and unsuccessful approaches to contaminant remediation as well as practical methods for environmental risk assessment