Per- and polyfluoroalkyl substances (PFAS), are a group of chemicals that have been classified by the U.S. Environmental Protection Agency (EPA) as an emerging contaminant on the national level. 

The chemicals have been used in fire suppressant foam at airports, fire departments and refineries, as well as by industrial chrome platers and apparel manufacturers.  They repel water and resist heat. PFAS have been found at low levels both in the environment and in blood samples of the general U.S. population.

The state of Michigan is testing 1,380 public water systems.  On August 28, 2019 City of St. Joseph water was tested.  Test results received from the Michigan Department of Environment, Great Lakes and Energy (EGLE) indicate that PFOS/PFOA was not detected in the City’s drinking water.  The City of St. Joseph did have  2-ppt for PFOS/PFOA in the water plant influent (prior to treatment).    The current advisory level is 70 ppt. (The abbreviation ‘ppt’ stands for parts per trillion.  One part per trillion is equivalent to one drop of water in four Olympic size swimming pools).  The EGLE report and test results are available by clicking here.

There is currently no monitoring requirement for PFAS.  However, the City will continue to test for PFAS on a voluntary basis and report the results in our annual Consumer Confidence Report.

If you have any specific concerns or other questions, we look forward to answering them.  We can be reached at (269) 983-1240.


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