U S Environmental Protection Agency

Cross-Connection Control Manual U S Environmental Protection Agency

Plumbing cross-connections, which are defined as actual or potential connections between a potable and nonpotable water supply, constitute a serious public health hazard. There are numerous, welldocumented cases where crossconnections have been responsible for contamination of drinking water, and have resulted in the spread of disease. The problem is a dynamic one, because piping systems are continually being installed, altered, or extended.