Last updateWed, 20 Sep 2017 9am


Water district repairs temporarily result in hard water for Los Altos

California Water Service Co. customers in Los Altos, Los Altos Hills, Mountain View and Sunnyvale may experience harder water than usual through Feb. 6 as the result of an ongoing Santa Clara Valley Water District repair project.

Water hardness is not a health issue, according to Cal Water officials, and the water will continue to meet all water quality standards during the time.

While repairs are underway, Cal Water officials said they will supplement reduced imported water supplies from the district with local groundwater. This water is typically harder, officials said, because it contains more naturally occurring minerals such as calcium and magnesium.

Although the water hardness poses no health concern, officials said, it can affect the taste, odor and color of the water; inhibit the water’s ability to create soap lather; and cause a white build-up on glassware, dishes and plumbing fixtures.

Customers can prevent spotting on dishes and silverware by washing and drying them by hand or drying them immediately after they are washed in the dishwasher. Spots can be removed with white vinegar.

Cal Water serves approximately 67,500 people through 18,400 service connections in Los Altos and parts of Los Altos Hills, Mountain View, Cupertino and Sunnyvale. The company has provided water service in the area since 1931.

For more information, visit calwater.com.

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