Clean water is a human right!

As the nation was disturbed with the recent Flint water disaster, the federal court tosses one of the lawsuits out, claiming essentially, the Flint residents have no remedy for the wrongs alleged under federal law and should pursue their claims solely in state court. For more here. Clearly, here justice was not served well, as there is evidence that the state knew about the crisis and failed to do anything because it did not care enough about the residents of Flint, Michigan, predominantly low-income African-Americans. If federal courts are not a proper venue for wrongs committed by states in violation of civil rights, what are they for?! If clean water is not considered a fundamental right, what is?!