Massachusetts S.563 creates a capital-outlay program to rehabilitate and expand state water infrastructure, fund MWRA capacity, and support PFAS cleanup and housing-focused projects.

Creates statewide rules for on-site greywater reuse, Tier 1 systems up to 400 gal/day for single-family homes, enabling limited reuse and local oversight.

Adds recreation as an official purpose of Chapter 91 and defines it to allow relaxation, watersports, and other enjoyable uses on private tidelands, guiding permits.