The taste or smell of your water may change throughout the year because the City of Santa Ana uses a blend of two water sources. About 77 percent of our water comes from local groundwater, while the rest is imported from Metropolitan Water District (MWD). MWD gets water from the Colorado River and Northern California, treating it with chloramines at their filtration plant. We also treat local well water with chlorine. This blend of waters can result in different tastes or mineral levels in your water at different times. However, these variations don’t affect water safety. Regular testing and monitoring by the City of Santa Ana help ensure that water quality meets regulatory standards year-round. In addition to providing high-quality water at lower costs, using different water sources benefits our customers by improving supply reliability.