The MWRA hosted Winthrop residents Saturday for a presentation and tour of the Deer Island Treatment Facility. Among those pictured are residents Krittiya Veeravisan, Ynai Li, Bill Stafford, Nok Stasio; (back row) Nadia Caines-Thomas of the MWRA, Therese Ockenden, Bob Ockenden, John Stasio, and Len Cawley, Pat Costigan, and Michael Strangie of the MWRA.