Ann Arbor drinking water continues to meet or exceed all state and federal regulatory requirements. Water monitoring occurs continuously, taking place seven days a week, every day of the year. As a result, more than 145,000 tests are conducted annually.
This aggressive testing also enables the city to closely monitor the presence of PFOA and PFOS. PFOA and PFOS are fluorinated organic chemicals, part of a larger family of compounds referred to as per- and polyfluoroalkyl substances (PFAS). PFAS chemicals are resistant to heat, water and oil and are classified by the U.S. Environmental Protection Agency (EPA) as an emerging contaminant on the national landscape. Samples collected by the city and analyzed by an independent lab each month have shown PFAS in Ann Arbor drinking water at levels significantly below the health advisory level established by the EPA and adopted by the State of Michigan.
As more information about PFAS began to emerge, the city took a preemptive approach and initiated a plan to replace the carbon in all 26 existing filters with a new type of carbon to increase removal of PFOA and PFOS. The replacement process is underway, and testing has already shown a decline in PFOA and PFOS levels. This project is expected to be complete in May this year.
The city remains committed to providing safe drinking water that complies or exceeds all regulatory guidelines. Additional details about PFAS are available on the city website.
High standards and proactive leadership make Ann Arbor one of the most progressive water treatment utilities in the country. In mid March, the city’s annual water quality report will be posted online. Subscribe to receive a link to the 2018 City of Ann Arbor Water Quality Report via email when it becomes available. A print copy may also be requested at the end of March by calling the water treatment plant at 734.794.6426.
Those wanting an opportunity to learn more, first hand, about Ann Arbor drinking water should save the date — Saturday, May 11 — for the annual Water Treatment Plant Open House event 10 a.m.–2 p.m. The open house will include plant tours, exhibits, giveaways, kids activities and more.