After 30 years of regulation, water pollution is still a big problem in the U.S. Today, 39% of the rivers, 45% of the lakes, and 51% of the estuaries monitored are contaminated. Find out how the landmark environmental legislation is being threatened as never under attack from courts, from regulators and from property owners. In 1972, Congress passed the Clean Water Act to protect all "waters of the United States." For 30 years, both the courts and the agencies responsible for administering the Act interpreted it to broadly protect our Nation's waters. However, in two decisions, Solid Waste Agency of Northern Cook County v. U.S. Army Corps of Engineers (SWANCC) (in 2001) and Rapanos v. United States (in 2006), the Supreme Court ignored congressional intent and narrowly interpreted the scope of waters covered by the Act, putting in doubt pollution safeguards for many vital wetlands, lakes and streams. After the decisions, the Bush administration's Environmental Protection Agency and Army Corps of Engineers excluded numerous waters from protection and placed unnecessarily high hurdles to protecting others. These decisions shattered the fundamental framework of the Clean Water Act. Today, the EPA funding is cut down which makes it more difficult for American city like flint Michigan and the lead water crisis.