Regional Water Authority Regional Water Authority Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Utilities Regional Water Authority 90 Sargent DriveNew Haven, CT 06511 203-401-2598 | fax: 203-772-1406 Visit Site Send a message to: Regional Water Authority Your Name: Your Email: Subject: Message: (Date: 2/5/2025) If your business isn't here, contact us today to get listed!