* represents the 90th percentile value for 1st draw 1 liter samples used for compliance (federal LCR) ** represents the 90th percentile value using the highest of either the 1st of the 5th liter sample results (new Michigan LCR) During H2 2019 and H1 2020, the 90th percentile value was calculated using only 49 sites validated for compliance.
Release date set as date of site access.Â
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Lead levels in Flint, Michigan's drinking water 2016-2024
From July through December 2024, Flint's drinking water contained lead contamination levels of parts per billion (ppb). Levels of lead above ** ppb require federal action under Michigan's Lead and Copper Rule (LCR). Flint's water systems have met state and federal standards for lead in drinking water since H2 2016.Â
Flint's lead-tainted water crisis began in 2014, when the city switched its water to the Flint River. High concentrations of lead were soon discovered in drinking water, impacting the health of thousands of residents. No level of lead in drinking water is considered safe for humans.
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Michigan Department of Environment, Great Lakes, and Energy. (January 22, 2025). Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2024 (in parts per billion) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 14, 2026, from /statistics/1360963/drinking-water-lead-contamination-flint-us/
Michigan Department of Environment, Great Lakes, and Energy. "Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2024 (in parts per billion)." Chart. January 22, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 14, 2026. /statistics/1360963/drinking-water-lead-contamination-flint-us/
Michigan Department of Environment, Great Lakes, and Energy. (2025). Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2024 (in parts per billion). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 14, 2026. /statistics/1360963/drinking-water-lead-contamination-flint-us/
Michigan Department of Environment, Great Lakes, and Energy. "Concentration of Lead in Drinking Water in Flint, Michigan in The United States from H1 2016 to H2 2024 (in Parts per Billion)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Jan 2025, /statistics/1360963/drinking-water-lead-contamination-flint-us/
Michigan Department of Environment, Great Lakes, and Energy, Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2024 (in parts per billion) ÌÇÐÄÆƽâ°æ, /statistics/1360963/drinking-water-lead-contamination-flint-us/ (last visited July 14, 2026)
Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2024 (in parts per billion) [Graph], Michigan Department of Environment, Great Lakes, and Energy, January 22, 2025. [Online]. Available: /statistics/1360963/drinking-water-lead-contamination-flint-us/
