Is a Tap a Source of Water? The Definitive Guide
                                
                                
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                                    4 min read                                
                            
                                According to the CDC, most U.S. tap water originates from natural reservoirs, lakes, rivers, or underground sources. Therefore, a tap is not the origin but the final delivery point for the water, serving as a critical piece of the plumbing system that brings treated water from its true source to your home.