According to the Clean Water Act, when is it legal to release pollution into a body of water "when a permit has been issued".
Answer: Option D
Step-by-step explanation:
The Clean Water Act (CWA) provides the basic form for controlling pollutant discharges into United States water bodies and for maintaining surface water quality standards. The CWA foundation was passed in 1948 and renamed the Federal Water Pollution Control Act but in 1972 the Act was substantially reorganized and extended.
EPA has launched pollution control measures under the CWA, such as regulating and setting industry standards for wastewater. EPA has also developed standards for contaminants in surface waters on national water quality requirements.The CWA made it unlawful to dump any pollutant into navigable waters from a point source, unless a permit was obtained.