UURI/PP/Ministry of the Environment. Clean water characteristics: physical, chemical, biological. Classification of water according to its purpose, protection of groundwater reservoirs, drinking water treatment installations (IPAM) and the function of each processing unit. Water pollution, EIA, waste water: sources and characteristics of waste water, waste water treatment plants (IPAL), the function of each domestic waste water treatment unit, the concept of environmentally friendly domestic waste water technology, septic tank design. Waste: sources and characteristics of waste, waste processing, landfill design, types, weaknesses and advantages, global warming, Amdal.