Guam - The Guam Waterworks Authority has announced a water outage effective at 8pm this evening until 6am Friday morning. Water will be out to all of Santa Rita and Agat Villages. "Navy crews are replacing valves in the area and due to the length of the outage GWA's reservoirs will not be able to meet demand through the night", said Heidi Ballendorf Director of Communications of GWA.