Lead and Copper


Sources of Lead and Minimizing Risks

High levels of lead and copper are not present in the groundwater or in the Detroit River that serves as our drinking water source. The primary sources of lead in tap water are pipes and fixtures in individual homes where water can leach lead from the plumbing fixtures.

To minimize the risks of exposure to lead:

  • Water temperature can affect the extent to which lead enters the water. Use water from the cold tap for making baby formula, drinking, and cooking.
  • Let the water run for a minimum of 30 seconds to two minutes if it hasn’t been turned on for six or more hours.


drinking water lead sources


Michigan's 2018 Lead and Copper Rule (LCR)

Michigan’s 2018 Lead and Copper Rule (LCR) requires communities to locate and prioritize pipes for removal. It also decreases the action limit for lead in drinking water. Per the new LCR, YCUA must verify its inventory results by 2025. Once the service line material is verified, a letter will be mailed to resident occupants informing them of the results and if their service line meets the criteria for replacement.

The LCR requires water systems to begin replacements in 2021 and continue to replace lines at a rate of 5% per year. If your line does meet criteria for replacement, YCUA will notify you during the year you are scheduled for replacement.


Monitoring for Lead and Copper

YCUA monitors for lead and copper and publishes those results in our Consumer Confidence Drinking Water Quality Report.
If you are concerned about lead in your water, you may wish to have your water tested. For a list of licensed labs in Michigan that can analyze your water for lead and copper, see Michigan Department of Environment, Great Lakes, and Energy's listing of Laboratories Certified for Lead and Copper Testing.

YCUA is pleased to report that its results for the new Lead and Copper Rule compliance are under the state action level. All communities with lead service lines must sample tap water in homes as required by the Michigan Department of Environment, Great Lakes, and Energy (EGLE) and the Environmental Protection Agency (EPA).