The Detroit Water and Sewerage Department (DWSD) is required to perform lead and copper testing at residents' water taps every three years. The department takes the quality of its water and service delivery to residential and commercial customers very seriously.


Detroit Conducted Lead and Copper Testing in Summer 2016

DWSD's lead sampling in the summer of 2016 found the city’s drinking water continues to be well within the Environmental Protection Agency (EPA) standards for the presence of lead. The results were certified as 4 parts per billion (ppb) by the Michigan Department of Environmental Quality (MDEQ). The current EPA maximum level is 15 ppb. The testing was performed a year earlier than required and was managed in cooperation with the Great Lakes Water Authority Water Quality Unit.



Drinking Water Quality: Lead and Copper Resources


Lead and Copper Testing Laboratories