Final answer:
Stormwater should not be drained into sewers designed for sanitary, industrial, or hazardous waste to avoid overwhelming combined sewer systems and causing pollution.
Step-by-step explanation:
Stormwater should not be drained into sewers intended for sanitary waste, industrial waste, or hazardous waste. This is because combined sewer systems, which are designed to collect both sewage and stormwater runoff, can become overwhelmed during heavy rains, leading to the discharge of untreated sewage into adjacent water bodies.
To reduce water pollution problems, separate sewer systems are more efficient, sending street runoff directly to rivers and wastewater exclusively to treatment plants. The practice of draining stormwater into these specific types of sewers can exacerbate pollution issues and is not consistent with good engineering practice or environmental regulations.