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 nonresidential 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

  • Download the Detroit Water Quality Reports.
  • DWSD will test for lead in the water at no charge at homes where a child has tested positive for elevated blood lead levels, or when DWSD is replacing a lead service line. If a child in your home has an elevated blood lead level, please call the Detroit Health Department at 313-876-0133 for support and to request a test for lead in the water. If DWSD is replacing a lead service line at your home you will be contacted directly for sampling opportunities.
  • You may also request a test for lead in water at your home by completing a Lead and Copper Sample Request Form. The participating household must collect the tap water sample by adhering to the provided instructions. For any other questions about sampling for lead in drinking water, please call 313-964-9300.
  • Read the Lead and Copper in Drinking Water FAQs provided by the Great Lakes Water Authority
  • Learn more about lead programs offered by the Detroit Health Department.

Lead and Copper Testing Laboratories