The Water Environment Federation’s Stormwater Institute conducted three iterations of the National Municipal Separate Storm Sewer System (MS4) Needs Assessment Survey in 2018, 2020 and 2022. The primary objectives of these surveys are to identify the information and resource needs of MS4 permittees, better understand MS4 program challenges, and approximate current funding levels and estimated funding needs in the MS4 sector.
Use this INTERACTIVE DASHBOARD created by the science team at 2NDNATURE to explore the results.
