Wright Twp & MS4 – Why do we regulate stormwater?

The MS4 program requires the MS4 owner/operator to implement a series of
programs to reduce the discharge of pollutants from the storm sewer system to the
maximum extent practicable in a manner that protects water quality. The
Pennsylvania Code Chapter 93 sets the water quality standards for surface waters of
the Commonwealth and these standards seek to protect the waters for aquatic life,
water supply, recreation and fish consumption, and areas that need special
protection. The MS4 program focuses on managing discharges into the waters of the
Commonwealth by educating and implementing proper control measures and best
management practices (BMPs).