For the Department: "Federal funding to assist communities with capital projects to meet the water-related goals and requirements of federal laws has been provided through programs in the Clean Water Act (CWA) and the Safe Drinking Water Act. This report provides a table showing budget requests and appropriations for the Environmental Protection Agency's (EPA's) water infrastructure assistance programs under these two laws since 1973. The Water Pollution Control Act of 1948 (P.L. 80-845) established a grant program to assist localities with planning and design work and authorized loans for treatment plant construction. In subsequent amendments, federal assistance increased and a construction grant program replaced the loan program. In the Federal Water Pollution Control Act Amendments of 1972 (P.L. 92-500, popularly known as the Clean Water Act), Congress established the first national standards for sewage treatment and significantly increased federal funding to help communities meet the law's standards."
CRS Report for Congress, R43871
Congressional Research Service: https://crsreports.congress.gov/