There is no doubt about it - stormwater management in Pennsylvania is a multi-layered, multijurisdictional, ever-changing quagmire of rules, regulations and requirements. The Borough of Sewickley is operating under the PAG-13 General NPDES Permit.
It is hoped that the following resources will help residents understand why these requirements are in place. As you will see, these requirements are mandated by Federal and State laws.
What does MS4 stand for?
Municipal Separate Storm Sewer Systems