In as much as the problem of taste and odor may be apparent in the water, the water is safe to drink. Water that is refrigerated overnight in a sealed container does taste better as it has been given time to settle. We recommend keeping a jug of water at all times in the refrigerator. This also gives you the benefit of always having a cool drink of water. Hard water is defined by the amount of calcium and magnesium present in the water.
Hard water has a relatively high level as compared to soft water which has a low level.
Corpus Christi tap water is considered moderately hard. Testing conducted in 1999 showed 182 milligrams per liter or about 10.6 grains per gallons. Fluoride, which is a substance added to reduce cavities, is added to our water. The American Dental Association recommends a concentration of 1 part per million. Bottled water usually does not contain fluoride and therefore, is not recommended for children.