What were Richard Nixon's contributions to the United States?

lSigned the executive order creating the Environmental Protection Agency in 1970

lSigned the National Environmental Policy Act of 1969, The Clean Air Act Extension of 1970, The Water Quality Improvement of 1970, The National Wilderness Act of 1970, The National Resource Recovery Act of 1970, and The Federal Water Pollution Control Amendments of 1972

He gave support to the Safe Drinking Water Act