Question

under the clean water act, what are mines prohibited from contaminating?
surface waters and groundwater
the soil at industrial sites
air quality

Explanation:

The Clean Water Act focuses on regulating water pollution. Its core scope covers surface waters (like rivers, lakes) and groundwater, as these are the water resources the act is designed to protect. Soil and air quality fall under other environmental regulations, not the Clean Water Act's primary purview for mine contamination restrictions.

Answer:

surface waters and groundwater