The Clean Water Act (CWA) is the primary federal law in the United States governing water pollution. Its objective is to restore and maintain the chemical, physical, and biological integrity of the nation's waters by preventing point and nonpoint pollution sources, providing assistance to publicly owned treatment works for the improvement of wastewater treatment, and maintaining the integrity of wetlands. It is one of the United States' first and most influential modern environmental laws. As with many othe (10 St. 51 Min, 6 Mai 1977 Jahr – 11 St. 14 Min, 16 Aug 1977 Jahr)
Zugefügt zum Band der Zeit:
Datum:
10 St. 51 Min, 6 Mai 1977 Jahr
11 St. 14 Min, 16 Aug 1977 Jahr
~ 3 months and 12 days