Certified Storm Water Operator Practice Exam

Which of the following is a requirement for the discharge of pollutants to navigable waters?

1. Clearance from local authorities

2. Authorization by a NPDES permit

3. A consultation with community stakeholders

4. Compliance with state environmental laws

The correct answer is: Authorization by a NPDES permit

The requirement for the discharge of pollutants to navigable waters is that it must be authorized by a National Pollutant Discharge Elimination System (NPDES) permit. This system is a component of the Clean Water Act (CWA) in the United States, which regulates the discharge of pollutants into the waters of the U.S. The intent of the NPDES permit program is to control water pollution by regulating point sources that discharge pollutants into navigable waters. Obtaining a NPDES permit involves a detailed application process where the proposed discharge is evaluated for potential impacts on water quality and the environment. The permit includes specific conditions and pollutant limits that must be adhered to, ensuring that discharges do not harm the environment or public health. This oversight helps enforce compliance with environmental standards and protects aquatic ecosystems. While clearance from local authorities, consultations with community stakeholders, and compliance with state environmental laws are important aspects of environmental management and may be part of the broader permitting process, they do not specifically address the federal requirement that permits discharges into navigable waters. The NPDES permit is the central mechanism established by federal law to regulate such activities.