EPA Summary of Post-Construction Stormwater Standards (All 50 States)

EPA summary comparing post-construction stormwater rules across all fifty states.

This national report summarizes every state's post-construction stormwater standards in one place. It is a useful reference for comparing Pennsylvania, Ohio, and West Virginia requirements against each other and against neighboring states, which matters for tri-state work where a single project type may face three different regulatory baselines. Hosted in WaterNow's resource library under Green Infrastructure.