On Wednesday, December 19, 2007, Friends of Milwaukee's Rivers, though its attorneys at Midwest Environmental Advocates, sent a notice of intent to sue under the Clean Water Act to Fontarome Chemical, Inc. in response to their dumping of excessive amounts of toxic and cancer-causing chemicals into the Milwaukee Metropolitan Sewerage District sewer system. This is a problem for area waters because MMSD's system is not designed to remove these toxic chemicals, and relies upon companies like Fontarome to not release them into the system.