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1. What is NPDES?

National Pollutant Discharge Elimination System

2. What does that mean?

The Environmental Protection Agency (EPA) is requiring York County and other small municipal separate storm sewer systems (MS4s) to implement a storm water management program that will address issues of storm water pollution.

3. Why is it needed?

Polluted storm water enters York County’s local waterways without treatment and contributes to water quality degradation.

4. Why is it needed?

Polluted storm water enters York County’s local waterways without treatment and contributes to water quality degradation.

5. How will this help?

It will protect water quality by reducing the discharge of storm water pollutants into local streams to the "maximum extent practicable" (MEP), and it will fulfill the water quality requirements of the Clean Water Act (CWA).