The water at the plant is tested daily for numerous parameters, and at least monthly in the system to ensure that the water at your home meets or exceeds all National Primary Drinking Water Standards. Values for parameters of the treated water change with the time of year. Current values can be obtained by contacting the Environmental Services Lab. The Environmental Services Laboratory is also the agency within the City that deals with the Federal Regulations concerning Industrial Waste Pretreatment, Stormwater and other environmental areas and concerns. Chemically speaking, no.
Hard water tends to leave white mineral deposits on the ends of faucets and on shower curtains.
People who use well water may have significant water hardness and consider using a softener. Golden's water hardness fluctuates throughout the year, but usually stays between 50 and 150 parts per million. Over the past 18 years, samples have been taken during all of the seasons and have been analyzed by the Colorado Department of Health and other independent laboratories. The answer is no. This is sufficient for most people.