June 2024 Update: Residual Designation Authority (RDA) Activities Underway for the Charles, Neponset, and Mystic River Watersheds
Permit Update
EPA continues to develop the draft permit and related documents. If you have thoughts or questions on the development of the permit contact EPA at R1.RDA@epa.gov.
EPA is currently updating the parcel-level datasets for the Charles River Watershed. Where relevant, updated municipal-specific information fact sheets will be available at the end of summer.
Stakeholder Outreach and Tools
EPA has developed a 2-page information sheet (pdf) that explains stormwater pollution, EPA’s residual designation authority, and the potential impacts this permit may have on communities in general terms. This information sheet will be translated into relevant languages and the translations will be made on our website soon.
EPA convened a series of focus groups in June to hear feedback from individuals on RDA permit implementation topics including permit phasing and the timing of compliance deadlines, off-site mitigation opportunities and challenges, regionalized approaches to stormwater management, how to address new development on RDA sites as well as other issues that were raised by participants. A report summarizing those discussions will be available on the EPA website soon.
As part of the technical assistance that EPA held with the three communities (Milford, Stoughton, and Somerville) in the Charles, Mystic, and Neponset River Watersheds, CBI and the UNH Stormwater Center in 2024, the final UNHSC Performance Curve and O&M Tracking Calculator (xlsm) is now available, where municipalities are able to not only track SCM performance, but also log and estimate hours needed to perform O&M.