Read this US policy on clean water.The Clean Water Act (CWA) establishes the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface water.–Summary of the Clean Water Act, Environmental Protection Agency
Answer
A
by monitoring a toxic spill that affects a drinking water supply
B
by providing pamphlets related to the quality of drinking water
C
by carrying out research about the effects of large discharges
D
by controlling the amount of water people use in their homes
Explanation
The Clean Water Act regulates pollutant discharges into U.S. waters and sets standards for surface-water quality. Monitoring a toxic spill that could affect a drinking-water supply relates to those goals. The Act does not focus on distributing pamphlets, researching discharge effects alone, or limiting household water use.
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