Frequent Questions

What does the term "cross-connection" mean?

According to the Drinking Water Glossary: a Dictionary of Technical and Legal Terms Related to Drinking Water (EPA810-B-94-006, June 1994), cross-connection means "Any actual or potential connection between a drinking (potable) water system and an unapproved water supply or other source of contamination. For example, if you have a pump moving non-potable water and hook into the drinking water system to supply water for the pump seal, a cross-connection or mixing between the two water systems can occur. This mixing may lead to contamination of the drinking water."

Additional information is available at

Have more questions? Submit a request