Looking for a fun, educational event to kick off Mother's Day weekend? On Saturday, May 11 from 10 am to 2 pm, the City of Napa opens the gates to its state-of-the-art Edward I. Barwick Jamieson Canyon Water Treatment Plant at 270 Kirkland Ranch Road, just off Highway 12. At this second annual “Tap Water Day” Open House, the community is invited to see the equipment, processes, and people that convert raw water from the Sacramento River Delta into clean, safe drinking water for Napa and other local cities. Tours of the facility will start every twenty minutes, including a close-up look at the laboratory and advanced control system.