Drinking water and lead testing
There has been a lot of news lately about lead in Flint, Michigan’s, drinking water. Minneapolis tap water customers can rest assured that their drinking water is safe. The water treatment plant’s staff continuously samples, analyzes and documents the quality of Minneapolis’water in its raw state and throughout the distribution system. Lead levels in the City of Minneapolis water supply have been in strict compliance with the Safe Drinking Water Act and the Minnesota Department of Health regulations since monitoring requirements began in 1991. The state Department of Health requires extensive testing for lead and copper in the City’s drinking water every three years. These tests were most recently conducted in 2015, and every one of the tests was passed.
Lead in drinking water is usually from lead that has leeched from homeowners’ plumbing such as private service pipes, lead-based solder and components such as brass fixtures. This is a preventable problem. In fact, in the early 1990s, the Minnesota Department of Health approved the City’s Optimum Corrosion Control Program, which let Minneapolis water professionals figure out the best water chemistry strategies to prevent corrosion in our water system. As a result of that program, Minneapolis controls the pH of water so it’s noncorrosive and also adds a corrosion inhibitor called ortho polyphosphate. Also, Minneapolis’ water is designed to form a thin scale inside pipes and fixtures to act as a barrier between the metal and the water we drink.
For more about how the City makes sure its drinking water is safe, please contact George Kraynick at 612-661-4923 or George.Kraynick@minneapolismn.gov.
Published Feb 2, 2016