From July through December 2022, Flint's drinking water contained lead contamination levels of 10 parts per billion (ppb). Levels of lead were slightly higher than those recorded in the previous five years, but remained below the legal limit. Levels above 15 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 July 2016.
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.
Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2022
(in parts per billion)
Characteristic
Concentrations in parts per billion (PPB)
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* 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.
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Michigan Department of Environment, Great Lakes, and Energy. (February 1, 2023). Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2022 (in parts per billion) [Graph]. In Statista. Retrieved September 01, 2024, from https://www.statista.com/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 2022 (in parts per billion)." Chart. February 1, 2023. Statista. Accessed September 01, 2024. https://www.statista.com/statistics/1360963/drinking-water-lead-contamination-flint-us/
Michigan Department of Environment, Great Lakes, and Energy. (2023). Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2022 (in parts per billion). Statista. Statista Inc.. Accessed: September 01, 2024. https://www.statista.com/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 2022 (in Parts per Billion)." Statista, Statista Inc., 1 Feb 2023, https://www.statista.com/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 2022 (in parts per billion) Statista, https://www.statista.com/statistics/1360963/drinking-water-lead-contamination-flint-us/ (last visited September 01, 2024)
Concentration of lead in drinking water in Flint, Michigan in the United States from H1 2016 to H2 2022 (in parts per billion) [Graph], Michigan Department of Environment, Great Lakes, and Energy, February 1, 2023. [Online]. Available: https://www.statista.com/statistics/1360963/drinking-water-lead-contamination-flint-us/
