Fluoride is not added to Castle Rock water, however, it is a naturally occurring element and trace amounts could be found in our water (at levels well below the drinking water standard.)
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Hard water is created when water moves through soil and rock dissolving small amounts of naturally occurring minerals. These minerals primarily include calcium and magnesium which are nutrients frequently found in food. Hard water is not a health concern and thus water providers typically do not treat for it. Front Range communities, like Castle Rock, have Moderately Hard to Hard water.
While Castle Rock Water does not advocate using water softeners due to the amount of salt that can impact the wastewater system, hardness settings for Castle Rock are between 6.6 to 10.8 gains per gallon (GPG) or 108 to 125 parts per millions (ppm).
This white residue is most likely a result of the hardness of the water. The Moderately Hard to Hard water found in Castle Rock contains naturally occurring calcium and magnesium ions. These minerals are not removed from the water and are actually essential minerals our bodies need. The white spots on glassware or other fixtures are caused by the calcium. Adding a rinse aid to the dishwasher may help eliminate the white film and appliance discoloration.
Having an in-home water filter in Castle Rock is not necessary. We conduct daily, quarterly and annual testing throughout the year to analyze the quality of water throughout the water treatment and distribution process. Castle Rock Water continues to meet or exceed water quality requirements making your tap water safe to drink. Using an in-home water filter is a personal choice.
Bottled water is considered a food product and is regulated by the Food and Drug Administration. Bottled water is not as heavily regulated or tested as tap water. Water utilities are required to publicly provide water quality reports while bottled water companies are not. Some bottled water companies actually use tap water as their source.