A final source of water pollution is individuals. Within the home a number of toxic chemicals are used for cleaning, painting and car care. Often people do not consider the potential damage to ground and surface water when they dispose of these chemicals in the sink, toilet or trash. About 25 percent of all homes use septic systems for sewage disposal. These systems can leach harmful chemicals into the groundwater, particularly if they are poorly constructed or maintained.
Homeowners also use lawn and garden products which can get into the ground or surface water.
Most of the problems of water quality and quantity can be managed provided industries, farmers and consumers are committed. Technology and knowledge are available. Here are some suggestions. Since the Water Pollution Control Act of 1972, industries have greatly reduced their pollution of the nation's surface waters. However, some violations continue.