The ATV-DVWK is the association (about 16,000 members) representing German specialists working in the fields of wastewater, waste and water management. The main activities of the association cover both technical-scientific subjects and the economic and legal aspects of environmental protection. The association operates, at national and international level, within the fields of water pollution control, wastewater, water-hazardous substances, waste, hydraulic engineering, hydropower, hydrology, soil conservation and the rehabilitation of contaminated sites. This web site provides information about association introduction, ATV-DVWK set of rules and standards, publications, etc.