A water main break in San Marcos has left more than 100 homes Coronado Hills residents without water, Vallecitos Water confirmed. All homes east of Indian Ridge are out of water, Vallecitos said. The break happened at Indian Ridge and Washitonia around 7 a.m. Vallecitos crews are excavating the site to get down to the break – which takes time, Vallecitos said, as crews have to jackhammer through granite. and expect wear to be restored around 2 a.m. Monday. The cause of the break is unknown at this time.