Water and Light
Your trusted source of water and electricity for over 100 years.
Columbia’s water is tested more frequently and more thoroughly than is required by law. The well water is monitored for any possibility of contamination. More than 4,000 tests are run each year on samples from 30 locations throughout Columbia.
This water quality report is a requirement of the EPA’s Safe Drinking Water Act. This report lists only those substances found in measurable quantities in Columbia’s drinking water during 2016. Of the 83 regulated substances tested for, the detected substances are in this report. Not listed in this report are the many contaminants for which the water was tested but none was detected. Columbia Water & Light reports any events that might compromise the water quality to the Missouri Department of Natural Resources (see 2015 list).The water we supply to our customers meets all water quality standards set by the EPA and the Missouri Department of Natural Resources. You can download a printable copy of this report.